/* ==========================================================================
   Ayush Sijwal - Premium Single Page Portfolio CSS
   ========================================================================== */

/* --- Design Tokens & CSS Variables --- */
:root {
    /* Color Palette - Dark Theme (Default) */
    --bg-primary: #0b0f19;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    --bg-glass: rgba(11, 15, 25, 0.8);
    --border-glass: rgba(255, 255, 255, 0.08);
    
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --primary: #4f46e5;       /* Indigo */
    --primary-hover: #4338ca;
    --primary-glow: rgba(79, 70, 229, 0.25);
    
    --secondary: #06b6d4;     /* Cyan */
    --secondary-glow: rgba(6, 182, 212, 0.15);
    
    --success: #10b981;
    --error: #ef4444;
    
    --shadow-main: rgba(0, 0, 0, 0.35);
    --shadow-glow: 0 0 25px var(--primary-glow);
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --border-radius-circle: 50%;
}

/* Light Theme Variables */
body.light-theme {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --bg-glass: rgba(248, 250, 252, 0.85);
    --border-glass: rgba(15, 23, 42, 0.08);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --primary: #3b82f6;       /* Vibrant Blue */
    --primary-hover: #2563eb;
    --primary-glow: rgba(59, 130, 246, 0.2);
    
    --secondary: #0ea5e9;
    --secondary-glow: rgba(14, 165, 233, 0.1);
    
    --shadow-main: rgba(15, 23, 42, 0.05);
    --shadow-glow: 0 10px 30px rgba(59, 130, 246, 0.1);
}

/* --- Base & Reset Styles --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.25;
}

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

ul {
    list-style: none;
}

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

button, input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    background: none;
    border: none;
    outline: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: var(--border-radius-sm);
    border: 2px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* --- Layout Utilities --- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 100px 0;
}

.full-height {
    min-height: 100vh;
}

.text-center {
    text-align: center;
}

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

/* --- Custom Cursor --- */
.custom-cursor {
    width: 20px;
    height: 20px;
    border: 2px solid var(--primary);
    border-radius: 50%;
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 9999;
    transition: width 0.2s ease, height 0.2s ease, background-color 0.2s ease, transform 0.05s ease-out;
    opacity: 0;
    will-change: transform;
}

.custom-cursor-dot {
    width: 6px;
    height: 6px;
    background-color: var(--secondary);
    border-radius: 50%;
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0;
    will-change: transform;
}

body.cursor-active .custom-cursor,
body.cursor-active .custom-cursor-dot {
    opacity: 1;
}

.hovered-link {
    width: 45px;
    height: 45px;
    background-color: var(--primary-glow);
    border-color: var(--secondary);
}

@media (max-width: 1024px) {
    .custom-cursor, .custom-cursor-dot {
        display: none;
    }
}

/* --- Header / Navigation --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    display: flex;
    align-items: center;
    z-index: 100;
    border-bottom: 1px solid var(--border-glass);
    background-color: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: height var(--transition-normal), background-color var(--transition-normal);
}

.header.scrolled {
    height: 70px;
    box-shadow: 0 10px 30px var(--shadow-main);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
    letter-spacing: -0.5px;
}

.logo-symbol {
    color: var(--text-muted);
    font-weight: 400;
    opacity: 0.7;
}

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

.navbar {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
    position: relative;
    padding: 8px 0;
}

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

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Theme Toggle Button */
.theme-toggle {
    width: 44px;
    height: 44px;
    border-radius: var(--border-radius-circle);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.theme-toggle:hover {
    transform: scale(1.05);
    background-color: var(--border-glass);
}

/* Mobile Toggle Hamburger */
.mobile-nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: 102;
}

.mobile-nav-toggle .bar {
    height: 3px;
    width: 100%;
    background-color: var(--text-primary);
    border-radius: 9px;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

@media (max-width: 768px) {
    .navbar {
        display: none;
    }
    
    .mobile-nav-toggle {
        display: flex;
    }
}

/* Mobile Nav Drawer Overlay */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: var(--bg-primary);
    z-index: 99;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: right var(--transition-normal);
}

.mobile-nav-overlay.open {
    right: 0;
}

.mobile-nav-menu {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.mobile-nav-link {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    padding: 10px 0;
}

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

/* --- Section Headers --- */
.section-header {
    margin-bottom: 60px;
}

.section-tag {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary);
    font-weight: 700;
    margin-bottom: 12px;
    display: inline-block;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.section-underline {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    margin: 16px auto 0;
    border-radius: 2px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--primary-glow);
}

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

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

/* --- Hero Section --- */
.hero-section {
    position: relative;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg-shapes .shape {
    position: absolute;
    filter: blur(100px);
    border-radius: 50%;
    opacity: 0.15;
    z-index: -1;
    animation: float 20s infinite alternate ease-in-out;
    will-change: transform;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background-color: var(--primary);
    top: 10%;
    right: 5%;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background-color: var(--secondary);
    bottom: 10%;
    left: -5%;
}

.shape-3 {
    width: 250px;
    height: 250px;
    background-color: var(--primary-hover);
    bottom: 30%;
    right: 40%;
    animation-delay: -5s !important;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(40px, -40px) scale(1.15); }
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-badge {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-glass);
    padding: 8px 16px;
    border-radius: var(--border-radius-circle-like, 30px);
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background-color: var(--success);
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 10px var(--success);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.9); opacity: 0.6; }
    50% { transform: scale(1.1); opacity: 1; }
    100% { transform: scale(0.9); opacity: 0.6; }
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 16px;
}

.hero-subtitle {
    font-size: 2.2rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 24px;
    min-height: 48px;
}

.typed-cursor {
    opacity: 1;
    animation: blink 0.7s infinite;
    color: var(--primary);
    margin-left: 4px;
}

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

.hero-desc {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
    max-width: 580px;
}

.hero-ctas {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}

.hero-socials {
    display: flex;
    gap: 16px;
}

.social-icon {
    width: 46px;
    height: 46px;
    border-radius: var(--border-radius-circle);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-glass);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: transform var(--transition-fast), color var(--transition-fast), background-color var(--transition-fast);
}

.social-icon:hover {
    color: white;
    background-color: var(--primary);
    transform: translateY(-4px) scale(1.05);
    box-shadow: var(--shadow-glow);
}

.hero-visual {
    display: flex;
    justify-content: center;
}

.profile-card-glow {
    position: relative;
    border-radius: var(--border-radius-lg);
    padding: 4px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    box-shadow: var(--shadow-glow);
    transition: transform var(--transition-normal);
}

.profile-card-glow:hover {
    transform: translateY(-8px) rotate(1deg);
}

.profile-card {
    background-color: var(--bg-secondary);
    border-radius: calc(var(--border-radius-lg) - 4px);
    padding: 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 320px;
}

.profile-frame {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    border: 4px solid var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    box-shadow: inset 0 2px 10px rgba(0,0,0,0.5);
    overflow: hidden;
}

.profile-placeholder {
    font-size: 4rem;
    color: var(--text-muted);
}

.profile-details h3 {
    font-size: 1.5rem;
    margin-bottom: 6px;
}

.profile-details p {
    font-size: 0.95rem;
    color: var(--secondary);
    font-weight: 500;
    margin-bottom: 20px;
}

.profile-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.profile-tags span {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    background-color: var(--bg-tertiary);
    border-radius: 12px;
    color: var(--text-secondary);
    border: 1px solid var(--border-glass);
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 500;
}

.scroll-indicator:hover {
    color: var(--text-primary);
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background-color: var(--text-muted);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollWheel 1.5s infinite;
}

@keyframes scrollWheel {
    0% { top: 6px; opacity: 1; }
    100% { top: 20px; opacity: 0; }
}

@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 60px;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.8rem;
    }
    
    .scroll-indicator {
        display: none;
    }
}

/* --- About Section --- */
.about-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.about-text-content h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    line-height: 1.4;
}

.about-text-content p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.strengths-container {
    margin-top: 32px;
}

.strengths-container h4 {
    font-size: 1.1rem;
    margin-bottom: 16px;
}

.strengths-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.strength-tag {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    padding: 8px 16px;
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.strength-tag:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.stat-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius-md);
    padding: 30px 24px;
    text-align: center;
    transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.stat-icon {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 16px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-languages {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 10px;
}

.stat-languages span {
    font-size: 0.85rem;
    background-color: var(--bg-tertiary);
    padding: 4px 8px;
    border-radius: 6px;
    font-weight: 600;
}

@media (max-width: 868px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
}

/* --- Skills Section --- */
.skills-tabs-container {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    box-shadow: 0 10px 40px var(--shadow-main);
}

.skills-tabs {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
    border-bottom: 1px solid var(--border-glass);
    padding-bottom: 24px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 24px;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-glass);
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    color: var(--text-primary);
    background-color: var(--border-glass);
}

.tab-btn.active {
    color: white;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-color: transparent;
    box-shadow: var(--shadow-glow);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn var(--transition-normal);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.skills-grid-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px 48px;
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.skill-name {
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.skill-name i {
    font-size: 1.15rem;
}

.skill-percentage {
    font-weight: 700;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.skill-bar-bg {
    height: 8px;
    background-color: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.skill-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 4px;
    width: 0%; /* Animate this in JS */
    transition: width 1.2s cubic-bezier(0.1, 1, 0.1, 1);
}

/* Specific skill icon colors */
.text-orange { color: #f06529; }
.text-blue { color: #2965f1; }
.text-yellow { color: #f0db4f; }
.text-cyan { color: #00d8ff; }
.text-purple { color: #a855f7; }
.text-orange-red { color: #f1502f; }
.text-green { color: #10b981; }
.text-red { color: #ea4335; }
.text-linkedin { color: #0077b5; }
.text-magenta { color: #ec4899; }
.text-yellow-green { color: #84cc16; }
.text-wordpress { color: #21759b; }
.text-pink { color: #ff69b4; }
.text-green-dark { color: #1e7e34; }
.text-blue-dark { color: #0056b3; }
.text-gray { color: #9ca3af; }

@media (max-width: 768px) {
    .skills-grid-layout {
        grid-template-columns: 1fr;
    }
    
    .skills-tabs-container {
        padding: 24px;
    }
}

/* --- Timeline Section --- */
.timeline-container {
    position: relative;
    max-width: 1000px;
    margin: 40px auto 0;
}

.timeline-line {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 4px;
    background-color: var(--bg-tertiary);
    transform: translateX(-50%);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 0 40px;
    margin-bottom: 40px;
}

.timeline-item.left {
    left: 0;
    text-align: right;
}

.timeline-item.right {
    left: 50%;
    text-align: left;
}

.timeline-dot {
    position: absolute;
    top: 15px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--bg-secondary);
    border: 3px solid var(--primary);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    z-index: 10;
    transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.timeline-item.left .timeline-dot {
    right: -20px;
}

.timeline-item.right .timeline-dot {
    left: -20px;
}

.timeline-item:hover .timeline-dot {
    transform: scale(1.15);
    background-color: var(--primary);
    color: white;
}

.timeline-content {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius-md);
    padding: 30px;
    position: relative;
    transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.timeline-content:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.timeline-date {
    display: inline-block;
    padding: 4px 12px;
    background-color: var(--bg-tertiary);
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: 16px;
}

.timeline-title {
    font-size: 1.35rem;
    margin-bottom: 6px;
}

.timeline-company {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 600;
    margin-bottom: 8px;
}

.timeline-location {
    font-size: 0.85rem;
    color: var(--text-muted);
    display: block;
    margin-bottom: 16px;
}

.timeline-body ul {
    display: inline-block;
    text-align: left;
}

.timeline-body li {
    font-size: 0.92rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
    position: relative;
    padding-left: 18px;
}

.timeline-item.left .timeline-body li {
    list-style-type: none;
}

.timeline-body li::before {
    content: '•';
    color: var(--primary);
    font-size: 1.2rem;
    position: absolute;
    left: 0;
    top: -2px;
}

.timeline-item.right .timeline-body p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .timeline-line {
        left: 20px;
    }
    
    .timeline-item {
        width: 100%;
        padding: 0 0 0 45px;
        margin-bottom: 30px;
    }
    
    .timeline-item.left {
        left: 0;
        text-align: left;
    }
    
    .timeline-item.right {
        left: 0;
        text-align: left;
    }
    
    .timeline-item.left .timeline-dot,
    .timeline-item.right .timeline-dot {
        left: 0;
    }
    
    .timeline-item.left .timeline-body ul {
        text-align: left;
    }
}

/* --- Projects Section --- */
.project-filter-controls {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

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

.filter-btn.active {
    background-color: var(--primary);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 12px var(--primary-glow);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

.project-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    transition: transform var(--transition-normal), border-color var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.project-img-wrapper {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.project-placeholder-img {
    height: 100%;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: rgba(255,255,255,0.9);
    transition: transform var(--transition-normal);
}

.cms-bg {
    background: linear-gradient(135deg, #111827, #21759b);
}

.dev-bg {
    background: linear-gradient(135deg, #0b0f19, #4f46e5);
}

.ui-bg {
    background: linear-gradient(135deg, #111827, #06b6d4);
}

.marketing-bg {
    background: linear-gradient(135deg, #1f2937, #10b981);
}

.project-card:hover .project-placeholder-img {
    transform: scale(1.08);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

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

.project-links {
    display: flex;
    gap: 16px;
}

.project-link {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: transform var(--transition-fast);
}

.project-link:hover {
    transform: scale(1.1);
    background-color: var(--primary-hover);
}

.project-info {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-cat {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--secondary);
    margin-bottom: 8px;
    display: block;
}

.project-title {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.project-desc {
    font-size: 0.92rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    flex-grow: 1;
}

.project-tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.project-tech-tags span {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    background-color: var(--bg-tertiary);
    border-radius: 12px;
    color: var(--text-secondary);
    border: 1px solid var(--border-glass);
}

/* Certifications Block inside Projects */
.certifications-block {
    margin-top: 80px;
}

.certs-heading {
    font-size: 1.8rem;
    margin-bottom: 32px;
    text-align: center;
}

.certs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.cert-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius-md);
    padding: 24px;
    text-align: center;
    transition: transform var(--transition-fast);
}

.cert-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.cert-icon {
    font-size: 2.2rem;
    color: var(--secondary);
    margin-bottom: 16px;
}

.cert-card h4 {
    font-size: 1.05rem;
    margin-bottom: 4px;
}

.cert-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* --- Contact Section --- */
.contact-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 60px;
    align-items: start;
}

.contact-info-panel h3 {
    font-size: 1.8rem;
    margin-bottom: 16px;
}

.contact-info-panel p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.contact-details-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-detail-item {
    display: flex;
    gap: 16px;
    align-items: center;
}

.detail-icon {
    width: 48px;
    height: 48px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.2rem;
}

.detail-content {
    display: flex;
    flex-direction: column;
}

.detail-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 700;
}

.detail-link, .detail-text {
    font-weight: 600;
    font-size: 1.05rem;
}

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

.contact-form-panel {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius-lg);
    padding: 40px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
}

.form-group .required {
    color: var(--error);
}

.form-group input,
.form-group textarea {
    padding: 14px 18px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    width: 100%;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.error-msg {
    color: var(--error);
    font-size: 0.75rem;
    font-weight: 500;
    margin-top: 4px;
    display: none;
}

.form-group.invalid input,
.form-group.invalid textarea {
    border-color: var(--error);
}

.form-group.invalid .error-msg {
    display: block;
}

.btn-submit {
    align-self: flex-start;
}

.form-status {
    font-size: 0.95rem;
    font-weight: 600;
    margin-top: 10px;
    display: none;
}

.form-status.success {
    color: var(--success);
    display: block;
    animation: fadeIn var(--transition-fast);
}

.form-status.error {
    color: var(--error);
    display: block;
    animation: fadeIn var(--transition-fast);
}

@media (max-width: 900px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .contact-form-panel {
        padding: 24px;
    }
}

@media (max-width: 576px) {
    .form-group-row {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .btn-submit {
        width: 100%;
        justify-content: center;
    }
}

/* --- Footer --- */
.footer-bottom {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-glass);
    padding: 30px 0;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.footer-credit {
    font-weight: 500;
}

.footer-credit i {
    animation: heartbeat 1.5s infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}

@media (max-width: 576px) {
    .footer-container {
        flex-direction: column;
        text-align: center;
    }
}

/* --- Back to Top --- */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 46px;
    height: 46px;
    border-radius: var(--border-radius-circle);
    background-color: var(--primary);
    border: none;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 90;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    transition: all var(--transition-fast);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--primary-hover);
    transform: translateY(-3px);
}

/* --- Scroll Reveal Animations --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}