/* ============================================
   ROOT VARIABLES - LIGHT MODE (DEFAULT)
   ============================================ */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --card-bg: #ffffff;
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #60a5fa;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --container-max: 1400px;
    --container-padding: 2rem;
    --transition: all 0.3s ease;
    
    /* Header RGB variables for backdrop-filter */
    --header-bg-rgb: 255, 255, 255;
    --primary-rgb: 37, 99, 235;
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --card-bg: #1e293b;
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #93c5fd;
    
    --header-bg-rgb: 15, 23, 42;
    --primary-rgb: 59, 130, 246;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: var(--transition);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-top: 70px;
}

main {
    flex: 1;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

/* ============================================
   HEADER & NAVIGATION - FIXED WITH BLUR
   ============================================ */
.header {
    background: rgba(var(--header-bg-rgb), 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(var(--border-color), 0.2);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.header.scrolled {
    background: rgba(var(--header-bg-rgb), 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] .header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: baseline;
    gap: 4px;
    font-weight: 700;
    font-size: 1.5rem;
    white-space: nowrap;
    flex-shrink: 0;
}

.logo-text {
    color: var(--text-primary);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    padding: var(--spacing-xs) 0;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* ============================================
   RESPONSIVE LOGO - PREVENT LINE BREAK
   ============================================ */
@media (max-width: 768px) {
    .logo {
        font-size: 2rem;
        gap: 3px;
    }
    .logo-text {
        font-size: 2rem;
    }
}

@media (max-width: 550px) {
    .logo {
        font-size: 1.8rem;
        gap: 2px;
    }
    .logo-text {
        font-size: 1.8rem;
    }
}

@media (max-width: 400px) {
    .logo {
        font-size: 1.3rem;
        gap: 2px;
    }
    .logo-text {
        font-size: 1.3rem;
    }
}

/* ============================================
   THEME TOGGLE - GLASS STYLE
   ============================================ */
.theme-toggle {
    background: rgba(var(--header-bg-rgb), 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(var(--border-color), 0.3);
    border-radius: 9999px;
    padding: 8px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.theme-toggle i {
    font-size: 1.2rem;
    transition: transform 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.theme-toggle .sun-icon {
    color: var(--primary);
}

.theme-toggle .moon-icon {
    color: var(--text-primary);
}

.theme-toggle:hover {
    background: rgba(var(--primary-rgb), 0.15);
    transform: scale(1.05);
}

.theme-toggle:hover .sun-icon {
    color: var(--primary-light);
}

.theme-toggle:hover .moon-icon {
    color: var(--primary-light);
}

.theme-toggle:active i {
    transform: rotate(360deg);
}

[data-theme="dark"] .sun-icon { display: block; }
[data-theme="dark"] .moon-icon { display: none; }
[data-theme="light"] .sun-icon { display: none; }
[data-theme="light"] .moon-icon { display: block; }

.theme-toggle.rotating i {
    animation: iconSpin 0.5s ease-in-out;
}

@keyframes iconSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ============================================
   GITHUB LINK - GLASS STYLE
   ============================================ */
.github-link {
    background: rgba(var(--header-bg-rgb), 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(var(--border-color), 0.3);
    border-radius: 9999px;
    padding: 8px 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.github-link svg {
    width: 22px;
    height: 22px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.github-link:hover {
    background: rgba(var(--primary-rgb), 0.15);
    transform: scale(1.05);
}

.github-link:hover svg {
    color: var(--primary);
}

/* ============================================
   MOBILE MENU
   ============================================ */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: rgba(var(--header-bg-rgb), 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(var(--border-color), 0.3);
    border-radius: 12px;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 22px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition);
    border-radius: 2px;
}

.mobile-menu-btn:hover {
    background: rgba(var(--primary-rgb), 0.15);
}

.mobile-menu {
    display: none;
    background: rgba(var(--header-bg-rgb), 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid rgba(var(--border-color), 0.2);
    padding: var(--spacing-md);
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    z-index: 999;
}

.mobile-menu.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.mobile-nav-list {
    list-style: none;
}

.mobile-nav-link {
    display: block;
    padding: var(--spacing-sm);
    color: var(--text-primary);
    font-weight: 500;
    text-align: center;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: white;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: var(--border-color);
    transform: translateY(-2px);
}

.btn-outline {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
}

.btn-outline:hover {
    background-color: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* ============================================
   PROJECT BUTTONS
   ============================================ */
.project-buttons {
    display: flex;
    gap: 12px;
    margin-top: var(--spacing-md);
    flex-wrap: wrap;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    text-decoration: none;
}

.github-link-btn {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.github-link-btn:hover {
    background-color: #333333;
    color: white;
    transform: translateY(-2px);
}

.github-link-btn:hover i {
    color: white;
}

.live-link-btn {
    background-color: var(--primary);
    color: white;
    border: 1px solid var(--primary);
}

.live-link-btn:hover {
    background-color: var(--primary-dark);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}

[data-theme="dark"] .github-link-btn {
    background-color: var(--bg-tertiary);
    border-color: var(--border-color);
}

[data-theme="dark"] .github-link-btn:hover {
    background-color: #444444;
    color: white;
}

[data-theme="dark"] .live-link-btn {
    background-color: var(--primary);
}

[data-theme="dark"] .live-link-btn:hover {
    background-color: var(--primary-dark);
    color: white;
}

/* ============================================
   OVERLAY BUTTONS
   ============================================ */
.overlay-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.overlay-buttons .btn-github {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.overlay-buttons .btn-github:hover {
    background-color: #e2e8f0;
    color: #000000;
    border-color: #e2e8f0;
    transform: translateY(-2px);
}

.overlay-buttons .btn-live {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.overlay-buttons .btn-live:hover {
    background-color: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-2px);
}

[data-theme="dark"] .overlay-buttons .btn-github:hover {
    background-color: #3b3b3b;
    color: white;
    border-color: #3b3b3b;
}

[data-theme="dark"] .overlay-buttons .btn-live:hover {
    background-color: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-image {
    position: relative;
    text-align: center;
}

.profile-placeholder {
    width: 100%;
    max-width: 350px;
    margin: 0 auto;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.profile-img {
    width: 100%;
    height: auto;
    display: block;
}

.profile-fallback {
    width: 100%;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: var(--spacing-md);
    padding: 8px 16px;
    background-color: var(--card-bg);
    border-radius: 20px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    box-shadow: var(--card-shadow);
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.greeting {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 500;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 0;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.cursor {
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-location {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
}

.hero-description {
    font-size: 1.1rem;
    margin: var(--spacing-sm) 0;
}

.partner-text {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.hero-tagline {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    max-width: 550px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.stat-label i {
    margin-right: 4px;
    font-size: 0.7rem;
}

/* ============================================
   CURRENT FOCUS SECTION
   ============================================ */
.current-focus {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-primary);
}

.focus-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.focus-card {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
}

.focus-card:hover {
    transform: translateY(-4px);
}

.focus-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.focus-card h3 {
    font-size: 1.1rem;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

.focus-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ============================================
   FEATURED PROJECTS
   ============================================ */
.featured-projects {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    margin-bottom: var(--spacing-xs);
}

.section-title i {
    margin-right: 10px;
    color: var(--primary);
}

.section-subtitle {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.github-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background-color: var(--card-bg);
    border-radius: 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    box-shadow: var(--card-shadow);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.project-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.project-card:hover {
    transform: translateY(-5px) scale(1.01);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.project-image {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-content {
    padding: var(--spacing-md);
}

.project-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.project-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.tech-tag {
    padding: 4px 10px;
    background-color: var(--bg-tertiary);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.section-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* ============================================
   EDUCATION HIGHLIGHT
   ============================================ */
.education-highlight {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-primary);
}

.edu-card {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 16px;
    color: white;
}

.edu-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 120px;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
}

.grad-year {
    font-size: 2rem;
    font-weight: 700;
}

.grad-status {
    font-size: 0.875rem;
    opacity: 0.9;
}

.edu-content h3 {
    color: white;
    margin-bottom: var(--spacing-xs);
}

.edu-content h3 i {
    margin-right: 8px;
}

.edu-institution {
    font-size: 1.1rem;
    opacity: 0.95;
}

.edu-partner {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: var(--spacing-sm);
}

.edu-desc {
    opacity: 0.9;
}

/* ============================================
   TESTIMONIALS / APPROACH
   ============================================ */
.testimonials {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-secondary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.testimonial-card {
    background-color: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    position: relative;
}

.testimonial-quote i {
    font-size: 2rem;
    opacity: 0.3;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.testimonial-text {
    position: relative;
    z-index: 1;
    margin: var(--spacing-md) 0;
    color: var(--text-primary);
    font-style: italic;
}

.testimonial-author {
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-md);
}

.testimonial-author strong {
    display: block;
    color: var(--text-primary);
}

.testimonial-author strong i {
    margin-right: 6px;
}

.testimonial-author span {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ============================================
   PAGE HEADER (About, Projects, Contact)
   ============================================ */
.page-header {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.page-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xs);
}

.page-title i {
    margin-right: 10px;
    color: var(--primary);
}

.page-subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* ============================================
   ABOUT PAGE STYLES
   ============================================ */
.bio-section {
    padding: var(--spacing-2xl) 0;
}

.bio-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-2xl);
}

.bio-content h2 i {
    margin-right: 10px;
    color: var(--primary);
}

.bio-text {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.bio-text i {
    margin-right: 8px;
    color: var(--primary);
}

.quick-facts {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.fact-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
}

.fact-item i {
    width: 24px;
    color: var(--primary);
}

.bio-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.stat-box {
    background-color: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--card-shadow);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
}

/* Timeline */
.education-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-secondary);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--primary);
}

.timeline-item {
    position: relative;
    padding-left: 70px;
    margin-bottom: var(--spacing-xl);
}

.timeline-marker {
    position: absolute;
    left: 12px;
    top: 5px;
    width: 28px;
    height: 28px;
    background-color: var(--primary);
    border-radius: 50%;
    border: 3px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: white;
}

[data-theme="dark"] .timeline-marker {
    border-color: #475569;
}

.timeline-content {
    background-color: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.timeline-header h3 {
    font-size: 1.2rem;
    margin-bottom: 0;
}

.timeline-header h3 i {
    margin-right: 8px;
}

.timeline-year {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.timeline-institution {
    color: var(--text-secondary);
    font-weight: 500;
}

.timeline-partner {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.timeline-partner i {
    margin-right: 4px;
}

.timeline-description {
    margin-top: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.timeline-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: var(--spacing-sm);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
}

.timeline-status i {
    font-size: 0.7rem;
}

.status-completed {
    background-color: var(--success);
    color: white;
}

.status-in_progress {
    background-color: var(--warning);
    color: white;
}

/* Certifications */
.certifications-section {
    padding: var(--spacing-2xl) 0;
}

.certs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.category-title {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--border-color);
}

.category-title i {
    margin-right: 8px;
}

.category-title.in-progress {
    border-bottom-color: var(--warning);
}

.category-title.completed {
    border-bottom-color: var(--success);
}

.certs-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.cert-card {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cert-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--card-shadow);
}

.cert-icon {
    font-size: 2rem;
    min-width: 50px;
    text-align: center;
}

.cert-icon img {
    object-fit: contain;
    border-radius: 4px;
}

[data-theme="dark"] .cert-icon img {
    filter: brightness(0.9);
}

.cert-info h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.cert-issuer {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.cert-issuer i {
    margin-right: 4px;
}

.cert-status {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 4px;
    padding: 2px 8px;
    background-color: var(--warning);
    color: white;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 500;
}

.cert-status i {
    font-size: 0.65rem;
}

.cert-year {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--success);
    font-size: 0.8rem;
    font-weight: 500;
}

/* Skills */
.skills-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-secondary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.skills-category h3 {
    margin-bottom: var(--spacing-md);
}

.skills-category h3 i {
    margin-right: 8px;
}

.skills-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tag {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    cursor: pointer;
}

.skill-tag i {
    font-size: 0.85rem;
}

.skill-tag.tech-skill {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.skill-tag.tech-skill:hover {
    transform: translateY(-3px);
    background-color: var(--primary);
    color: white;
    box-shadow: var(--card-shadow);
}

.skill-tag.tech-skill:hover i {
    color: white !important;
}

.skill-tag.soft-skill {
    background-color: var(--primary);
    color: white;
}

.skill-tag.soft-skill:hover {
    transform: translateY(-3px);
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    box-shadow: var(--card-shadow);
}

.skill-tag.soft-skill:hover i {
    color: var(--primary) !important;
}

.tools-section {
    margin-top: var(--spacing-xl);
}

.tools-section h3 i {
    margin-right: 8px;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.tool-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: var(--spacing-sm);
    background-color: var(--card-bg);
    border-radius: 8px;
    font-size: 0.9rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tool-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--card-shadow);
}

.tool-item i {
    font-size: 1.2rem;
    width: 24px;
}

/* ============================================
   PROJECTS PAGE STYLES
   ============================================ */
.github-header-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: var(--spacing-sm);
    color: var(--text-secondary);
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.github-header-link:hover {
    transform: translateX(5px);
    color: var(--primary);
}

.projects-filter {
    padding: var(--spacing-lg) 0;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 20px;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 30px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    position: relative;
    overflow: hidden;
}

.filter-btn:hover {
    transform: scale(1.08) translateY(-2px);
    background-color: var(--primary);
    border-color: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.filter-btn.active {
    background-color: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
    font-weight: 600;
}

.filter-btn:active {
    transform: scale(0.98);
    transition: transform 0.1s ease;
}

.all-projects {
    padding: var(--spacing-2xl) 0;
}

.projects-grid.full-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.more-projects-cta {
    text-align: center;
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background-color: var(--card-bg);
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.more-projects-cta:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-shadow);
}

.more-projects-cta p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

/* ============================================
   CONTACT PAGE STYLES
   ============================================ */
.contact-section {
    padding: var(--spacing-2xl) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.contact-intro {
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.contact-card {
    padding: var(--spacing-md);
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
}

.contact-icon {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.contact-card h3 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.contact-card a {
    color: var(--primary);
    text-decoration: none;
}

.response-time {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.contact-social h3 {
    margin-bottom: var(--spacing-md);
}

.contact-form-wrapper {
    background-color: var(--card-bg);
    padding: var(--spacing-xl);
    border-radius: 16px;
    box-shadow: var(--card-shadow);
}

.contact-form {
    margin-top: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-primary);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
    opacity: 0.6;
    font-size: 0.9rem;
}

/* ============================================
   LOADING SPINNER
   ============================================ */
@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-spinner {
    text-align: center;
    padding: 2rem;
}

.loading-spinner div {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

.loading-spinner p {
    color: var(--text-muted);
}

.fa-hourglass-half {
    animation: spin 2s linear infinite;
}

/* ============================================
   FOOTER - NO UNDERLINE ANIMATION
   ============================================ */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.5fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-info h3 {
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.footer-info p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.footer-info i {
    margin-right: 6px;
    width: 20px;
}

.footer-location {
    margin-top: var(--spacing-sm);
}

.footer-links h4,
.footer-social h4 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.footer-links h4 i,
.footer-social h4 i {
    margin-right: 8px;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links ul li a,
.footer-social .social-link {
    display: inline-block;
    color: var(--text-secondary);
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    padding: 4px 0;
}

.footer-links ul li a:hover,
.footer-social .social-link:hover {
    transform: translateX(5px);
    color: var(--primary);
}

.footer-links ul li a i,
.footer-social .social-link i {
    margin-right: 6px;
    font-size: 0.95rem;
    transition: transform 0.3s ease;
}

.footer-social .social-link:hover i {
    transform: scale(1.1);
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-bottom i {
    margin-right: 4px;
}

.footer-credit i {
    margin-right: 4px;
}

/* ============================================
   SERVICES GRID (What I Do Page)
   ============================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

/* ============================================
   SOCIAL LINKS STYLES (Contact Page)
   ============================================ */
.social-links-large-vertical {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: var(--spacing-md);
}

.social-link-large {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background-color: var(--card-bg);
    border-radius: 12px;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
    font-weight: 500;
}

.social-link-large .social-icon-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background-color: var(--bg-tertiary);
    transition: all 0.3s ease;
}

.social-link-large .social-icon-wrapper i {
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.social-link-large .social-name {
    font-weight: 500;
    color: var(--text-primary);
    transition: color 0.3s ease;
}

.social-link-large:hover {
    transform: translateX(8px);
    border-color: var(--primary);
}

.social-link-large:hover .social-icon-wrapper {
    transform: scale(1.05);
}

.social-link-large:hover .social-name {
    color: var(--primary);
}

.social-link-large[href*="github"]:hover .social-icon-wrapper {
    background-color: #333333;
}

.social-link-large[href*="github"]:hover .social-icon-wrapper i {
    color: white;
}

.social-link-large.linkedin:hover .social-icon-wrapper,
.social-link-large[href*="linkedin"]:hover .social-icon-wrapper {
    background-color: #0A66C2;
}

.social-link-large.linkedin:hover .social-icon-wrapper i,
.social-link-large[href*="linkedin"]:hover .social-icon-wrapper i {
    color: white;
}

.social-link-large.instagram:hover .social-icon-wrapper,
.social-link-large[href*="instagram"]:hover .social-icon-wrapper {
    background: linear-gradient(45deg, #f09433, #d62976, #962fbf);
}

.social-link-large.instagram:hover .social-icon-wrapper i,
.social-link-large[href*="instagram"]:hover .social-icon-wrapper i {
    color: white;
}

.social-link-large.telegram:hover .social-icon-wrapper,
.social-link-large[href*="telegram"]:hover .social-icon-wrapper,
.social-link-large[href*="t.me"]:hover .social-icon-wrapper {
    background-color: #26A5E4;
}

.social-link-large.telegram:hover .social-icon-wrapper i,
.social-link-large[href*="telegram"]:hover .social-icon-wrapper i,
.social-link-large[href*="t.me"]:hover .social-icon-wrapper i {
    color: white;
}

.social-link-large.facebook:hover .social-icon-wrapper,
.social-link-large[href*="facebook"]:hover .social-icon-wrapper {
    background-color: #1877F2;
}

.social-link-large.facebook:hover .social-icon-wrapper i,
.social-link-large[href*="facebook"]:hover .social-icon-wrapper i {
    color: white;
}

[data-theme="dark"] .social-link-large .social-icon-wrapper {
    background-color: var(--bg-tertiary);
}

[data-theme="dark"] .social-link-large:hover .social-name {
    color: var(--primary-light);
}

.social-link-large .fa-github,
.social-link-large .fa-linkedin,
.social-link-large .fa-instagram,
.social-link-large .fa-telegram,
.social-link-large .fa-facebook {
    color: var(--text-primary);
    transition: color 0.3s ease;
}

.social-link-large:hover .fa-github { color: #333333; }
.social-link-large.linkedin:hover .fa-linkedin { color: #0A66C2; }
.social-link-large.instagram:hover .fa-instagram { color: #E1306C; }
.social-link-large.telegram:hover .fa-telegram { color: #26A5E4; }
.social-link-large.facebook:hover .fa-facebook { color: #1877F2; }

/* ============================================
   BRAND COLOR ICONS
   ============================================ */
.fa-html5 { color: #E34F26; }
.fa-css3-alt { color: #1572B6; }
.fa-js { color: #F7DF1E; }
.fa-php { color: #777BB4; }
.fa-python { color: #3776AB; }
.fa-react { color: #61DAFB; }
.fa-node { color: #339933; }
.fa-linux { color: #000000; }
.fa-windows { color: #0078D4; }
.fa-github { color: var(--text-primary); }
.fa-linkedin { color: #0A66C2; }
.fa-instagram { color: #E1306C; }
.fa-telegram { color: #26A5E4; }
.fa-facebook { color: #1877F2; }
.fa-smile-wink,
.fa-laptop-code,
.fa-code-branch,
.fa-certificate,
.fa-envelope,
.fa-comments,
.fa-paper-plane,
.fa-arrow-left,
.fa-cogs,
.fa-user,
.fa-home,
.fa-link,
.fa-share-alt,
.fa-tag,
.fa-comment-dots,
.fa-crown {
    color: var(--primary);
}
.fa-map-marker-alt,
.fa-location-dot {
    color: #DC2626;
}
.fa-shield-alt,
.fa-shield-haltered {
    color: #B91C1C;
}
.contact-card .fa-map-marker-alt {
    color: var(--danger);
}
.fa-check-circle {
    color: var(--success);
}
.fa-hourglass-half {
    color: var(--warning);
}
.fa-chart-bar,
.fa-eye,
.fa-terminal,
.fa-desktop,
.fa-route,
.fa-users,
.fa-chart-line,
.fa-clock,
.fa-file-alt,
.fa-puzzle-piece,
.fa-comments,
.fa-brain,
.fa-network-wired {
    color: var(--text-secondary);
}
.tool-item:hover .fa-windows,
.tool-item:hover .fa-linux,
.tool-item:hover .fa-chart-bar,
.tool-item:hover .fa-users,
.tool-item:hover .fa-eye,
.tool-item:hover .fa-terminal,
.tool-item:hover .fa-desktop,
.tool-item:hover .fa-network-wired {
    color: var(--primary);
}

/* GitHub icon hover - Light theme: black, Dark theme: white */
[data-theme="light"] .social-link:hover .fa-github {
    color: #000000;
}

[data-theme="dark"] .social-link:hover .fa-github {
    color: #ffffff;
}

.social-link:hover .fa-linkedin { color: #0A66C2; }

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-content {
        align-items: center;
    }
    .hero-stats {
        justify-content: center;
    }
    .bio-grid {
        grid-template-columns: 1fr;
    }
    .projects-grid,
    .projects-grid.full-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-list {
        display: none;
    }
    .mobile-menu-btn {
        display: flex;
    }
    .hero-title {
        font-size: 2.5rem;
    }
    .focus-grid {
        grid-template-columns: 1fr;
    }
    .projects-grid,
    .projects-grid.full-grid {
        grid-template-columns: 1fr;
    }
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .certs-grid {
        grid-template-columns: 1fr;
    }
    .skills-grid {
        grid-template-columns: 1fr;
    }
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .social-links {
        align-items: center;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
    .services-grid {
        grid-template-columns: 1fr;
    }
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    body {
        padding-top: 60px;
    }
    .header-container {
        height: 60px;
    }
    .mobile-menu {
        top: 60px;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    .btn {
        justify-content: center;
    }
    .edu-card {
        flex-direction: column;
        text-align: center;
    }
    .tools-grid {
        grid-template-columns: 1fr;
    }
    .quick-facts {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ============================================
   BOX VISIBILITY FIX - BOLD BORDERS & STRONG SHADOWS (LIGHT THEME)
   ============================================ */

/* Light theme - all boxes unified styling */
[data-theme="light"] .project-card,
[data-theme="light"] .focus-card,
[data-theme="light"] .testimonial-card,
[data-theme="light"] .cert-card,
[data-theme="light"] .stat-box,
[data-theme="light"] .timeline-content,
[data-theme="light"] .contact-card,
[data-theme="light"] .form-box,
[data-theme="light"] .contact-form-wrapper,
[data-theme="light"] .social-link-large,
[data-theme="light"] .tool-item,
[data-theme="light"] .edu-card,
[data-theme="light"] .more-projects-cta,
[data-theme="light"] .skill-tag.tech-skill {
    border: 2px solid rgba(37, 99, 235, 0.35);
    background-color: #ffffff;
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.12);
    transition: all 0.3s ease;
}

/* Light theme - hover effect for all boxes */
[data-theme="light"] .project-card:hover,
[data-theme="light"] .focus-card:hover,
[data-theme="light"] .testimonial-card:hover,
[data-theme="light"] .cert-card:hover,
[data-theme="light"] .stat-box:hover,
[data-theme="light"] .timeline-content:hover,
[data-theme="light"] .contact-card:hover,
[data-theme="light"] .form-box:hover,
[data-theme="light"] .contact-form-wrapper:hover,
[data-theme="light"] .tool-item:hover,
[data-theme="light"] .edu-card:hover,
[data-theme="light"] .more-projects-cta:hover,
[data-theme="light"] .skill-tag.tech-skill:hover {
    border: 2px solid var(--primary);
    box-shadow: 0 12px 28px rgba(37, 99, 235, 0.25);
    transform: translateY(-4px);
}

/* Special case - social-link-large moves horizontally, not vertically */
[data-theme="light"] .social-link-large:hover {
    transform: translateX(8px);
}

/* Special case - skill-tag needs different background on hover */
[data-theme="light"] .skill-tag.tech-skill:hover {
    background-color: var(--primary);
    color: white;
}

[data-theme="light"] .skill-tag.tech-skill:hover i {
    color: white !important;
}

/* Dark theme - keep original styling */
[data-theme="dark"] .project-card,
[data-theme="dark"] .focus-card,
[data-theme="dark"] .testimonial-card,
[data-theme="dark"] .cert-card,
[data-theme="dark"] .stat-box,
[data-theme="dark"] .timeline-content,
[data-theme="dark"] .contact-card,
[data-theme="dark"] .form-box,
[data-theme="dark"] .contact-form-wrapper,
[data-theme="dark"] .social-link-large,
[data-theme="dark"] .tool-item,
[data-theme="dark"] .edu-card,
[data-theme="dark"] .more-projects-cta,
[data-theme="dark"] .skill-tag.tech-skill {
    border: 1px solid var(--border-color);
    background-color: var(--card-bg);
    box-shadow: var(--card-shadow);
}

/* ============================================
   DARK THEME - HOVER EFFECTS
   ============================================ */

/* Dark theme - hover effects for all boxes */
[data-theme="dark"] .project-card:hover,
[data-theme="dark"] .focus-card:hover,
[data-theme="dark"] .testimonial-card:hover,
[data-theme="dark"] .cert-card:hover,
[data-theme="dark"] .stat-box:hover,
[data-theme="dark"] .timeline-content:hover,
[data-theme="dark"] .contact-card:hover,
[data-theme="dark"] .form-box:hover,
[data-theme="dark"] .contact-form-wrapper:hover,
[data-theme="dark"] .tool-item:hover,
[data-theme="dark"] .edu-card:hover,
[data-theme="dark"] .more-projects-cta:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
    transform: translateY(-4px);
}

/* Dark theme - social-link-large horizontal movement */
[data-theme="dark"] .social-link-large:hover {
    transform: translateX(8px);
}

/* Dark theme - skill tags with hover effects */
[data-theme="dark"] .skill-tag.tech-skill {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .skill-tag.tech-skill:hover {
    background-color: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.25);
}

[data-theme="dark"] .skill-tag.tech-skill:hover i {
    color: white !important;
}

[data-theme="dark"] .skill-tag.soft-skill {
    background-color: var(--primary);
    color: white;
    border: 1px solid var(--primary);
}

[data-theme="dark"] .skill-tag.soft-skill:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.15);
}

[data-theme="dark"] .skill-tag.soft-skill:hover i {
    color: var(--primary) !important;
}

/* Dark theme - tool-item hover */
[data-theme="dark"] .tool-item:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.12);
}

/* Dark theme - more-projects-cta hover */
[data-theme="dark"] .more-projects-cta:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
}

/* Dark theme - timeline-content hover */
[data-theme="dark"] .timeline-content:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.12);
}

/* Dark theme - stat-box hover */
[data-theme="dark"] .stat-box:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.12);
}

/* Dark theme - contact-card hover */
[data-theme="dark"] .contact-card:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.12);
}

/* Dark theme - form-box hover */
[data-theme="dark"] .form-box:hover,
[data-theme="dark"] .contact-form-wrapper:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
}

/* Dark theme - cert-card hover */
[data-theme="dark"] .cert-card:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.12);
}

/* ============================================================
   VISUAL POLISH PASS
   ============================================================ */
:root {
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --shadow-soft: 0 2px 8px rgba(15, 23, 42, 0.06);
    --shadow-elevated: 0 20px 40px -12px rgba(var(--primary-rgb), 0.25);
}

[data-theme="dark"] {
    --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.25);
    --shadow-elevated: 0 20px 40px -12px rgba(0, 0, 0, 0.5);
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: 0.1px;
}

::selection {
    background: rgba(var(--primary-rgb), 0.25);
    color: var(--text-primary);
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb {
    background: rgba(var(--primary-rgb), 0.4);
    border-radius: 10px;
    border: 2px solid var(--bg-secondary);
}
::-webkit-scrollbar-thumb:hover { background: rgba(var(--primary-rgb), 0.65); }

a:focus-visible,
button:focus-visible,
.btn:focus-visible,
.filter-btn:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
    border-radius: 4px;
}

h1, h2, h3, h4 {
    letter-spacing: -0.02em;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.75rem);
    line-height: 1.1;
}

.page-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
}

.section-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    position: relative;
    display: inline-block;
}

.section-header .section-title,
h2.section-title {
    display: block;
}

.section-header .section-title::after,
h2.section-title::after {
    content: '';
    display: block;
    width: 56px;
    height: 3px;
    margin: 10px auto 0;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
}

.header {
    box-shadow: 0 1px 0 rgba(var(--primary-rgb), 0.08);
}

.logo-text {
    background: linear-gradient(135deg, var(--text-primary), var(--primary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn {
    border-radius: var(--radius-sm);
    transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background-color 0.35s var(--ease);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    box-shadow: 0 8px 20px -6px rgba(var(--primary-rgb), 0.55);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    box-shadow: 0 12px 28px -6px rgba(var(--primary-rgb), 0.6);
    transform: translateY(-3px);
}

.btn-primary:active,
.btn-outline:active,
.btn-secondary:active {
    transform: translateY(-1px) scale(0.98);
}

.btn-outline:hover {
    box-shadow: 0 10px 24px -8px rgba(var(--primary-rgb), 0.4);
}

.hero {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at 15% 20%, rgba(var(--primary-rgb), 0.10), transparent 45%),
        radial-gradient(circle at 85% 80%, rgba(var(--primary-rgb), 0.08), transparent 45%),
        linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(var(--primary-rgb), 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(var(--primary-rgb), 0.05) 1px, transparent 1px);
    background-size: 48px 48px;
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black, transparent 75%);
    mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black, transparent 75%);
    pointer-events: none;
}

.hero-container { position: relative; z-index: 1; }

.profile-placeholder {
    position: relative;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-elevated);
    border: 4px solid var(--bg-primary);
}

.profile-placeholder::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: inherit;
    padding: 4px;
    background: linear-gradient(135deg, var(--primary), transparent 60%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.5;
    pointer-events: none;
}

.status-badge {
    border: 1px solid rgba(var(--primary-rgb), 0.25);
}

.project-card,
.focus-card,
.testimonial-card,
.cert-card,
.stat-box,
.timeline-content,
.contact-card,
.contact-form-wrapper,
.social-link-large,
.tool-item,
.edu-card,
.more-projects-cta {
    border-radius: var(--radius-md);
    transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
}

[data-theme="light"] .project-card,
[data-theme="light"] .focus-card,
[data-theme="light"] .testimonial-card,
[data-theme="light"] .cert-card,
[data-theme="light"] .stat-box,
[data-theme="light"] .timeline-content,
[data-theme="light"] .contact-card,
[data-theme="light"] .contact-form-wrapper,
[data-theme="light"] .social-link-large,
[data-theme="light"] .tool-item,
[data-theme="light"] .edu-card,
[data-theme="light"] .more-projects-cta {
    border: 1px solid rgba(var(--primary-rgb), 0.14);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 12px 24px -10px rgba(var(--primary-rgb), 0.18);
}

[data-theme="light"] .project-card:hover,
[data-theme="light"] .focus-card:hover,
[data-theme="light"] .testimonial-card:hover,
[data-theme="light"] .cert-card:hover,
[data-theme="light"] .stat-box:hover,
[data-theme="light"] .timeline-content:hover,
[data-theme="light"] .contact-card:hover,
[data-theme="light"] .contact-form-wrapper:hover,
[data-theme="light"] .tool-item:hover,
[data-theme="light"] .more-projects-cta:hover {
    border-color: rgba(var(--primary-rgb), 0.4);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 20px 36px -12px rgba(var(--primary-rgb), 0.28);
    transform: translateY(-5px);
}

.project-card {
    border-radius: var(--radius-md);
}

.project-image {
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    overflow: hidden;
}

.project-image img {
    transition: transform 0.6s var(--ease);
}

.project-card:hover .project-image img {
    transform: scale(1.06);
}

.tech-tag {
    border: 1px solid var(--border-color);
}

.edu-card {
    position: relative;
    overflow: hidden;
}

.edu-card::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -10%;
    width: 60%;
    height: 180%;
    background: radial-gradient(circle, rgba(255,255,255,0.12), transparent 65%);
    pointer-events: none;
}

.testimonial-card {
    overflow: hidden;
}

.testimonial-card .testimonial-quote i {
    font-size: 3rem;
}

.filter-btn {
    box-shadow: var(--shadow-soft);
}

.form-group input,
.form-group textarea {
    border-radius: var(--radius-sm);
}

.form-group input:focus,
.form-group textarea:focus {
    box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.12);
}

.contact-form-wrapper {
    border-radius: var(--radius-lg);
}

.footer {
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, rgba(var(--primary-rgb), 0.5), transparent);
}

.hero-tagline,
.bio-text,
.project-description,
.testimonial-text {
    line-height: 1.75;
}

/* ============================================
   TOAST NOTIFICATIONS - TOP RIGHT
   ============================================ */
.toast-container {
    position: fixed;
    top: 90px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 380px;
    width: 100%;
    pointer-events: none;
}

.toast {
    padding: 16px 20px;
    border-radius: 12px;
    color: white;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    animation: toastSlideIn 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    display: flex;
    align-items: center;
    gap: 12px;
    pointer-events: auto;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(4px);
}

.toast-success {
    background: linear-gradient(135deg, #10b981, #059669);
}

.toast-error {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

.toast-info {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.toast-warning {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.toast i {
    font-size: 1.3rem;
    flex-shrink: 0;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 2px;
}

.toast-message {
    font-size: 0.85rem;
    opacity: 0.9;
}

.toast-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 4px;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.toast-close:hover {
    color: white;
    transform: scale(1.1);
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateX(100px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

@keyframes toastSlideOut {
    from {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
    to {
        opacity: 0;
        transform: translateX(100px) scale(0.9);
    }
}

.toast-removing {
    animation: toastSlideOut 0.3s ease forwards;
}

@media (max-width: 500px) {
    .toast-container {
        top: 80px;
        right: 10px;
        left: 10px;
        max-width: none;
        width: auto;
    }
    
    .toast {
        padding: 14px 16px;
        font-size: 0.9rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}