/* styles.css */

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --accent: #f97316;
    --accent-light: #fb923c;
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a24;
    --bg-elevated: #22222e;
    --text-primary: #f4f4f5;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --border: #27272a;
    --border-light: #3f3f46;
    --glass-bg: rgba(26, 26, 36, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
}

[data-theme="light"] {
    --bg-primary: #fafafa;
    --bg-secondary: #f4f4f5;
    --bg-card: #ffffff;
    --bg-elevated: #ffffff;
    --text-primary: #18181b;
    --text-secondary: #52525b;
    --text-muted: #71717a;
    --border: #e4e4e7;
    --border-light: #d4d4d8;
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(0, 0, 0, 0.1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.16);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
    html { scroll-behavior: auto; }
}

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

.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

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

/* ============= FOCUS STYLES FOR KEYBOARD NAVIGATION ============= */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

button:focus-visible,
a:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ============= THEME TOGGLE ============= */
.theme-toggle {
    position: fixed;
    top: 1rem;
    right: 1.5rem;
    z-index: 1001;
    width: 44px;
    height: 44px;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-primary);
    transition: var(--transition);
}

.theme-toggle:hover { background: var(--bg-elevated); transform: scale(1.05); }
.theme-toggle:focus-visible { outline-offset: 4px; }
.theme-toggle .sun-icon { display: none; }
.theme-toggle .moon-icon { display: block; }
[data-theme="light"] .theme-toggle .sun-icon { display: block; }
[data-theme="light"] .theme-toggle .moon-icon { display: none; }

/* ============= NAVBAR ============= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu { display: flex; gap: 2rem; list-style: none; }

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-link:hover { color: var(--text-primary); }
.nav-link:hover::after { width: 100%; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* ============= BUTTONS ============= */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-display);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 100%);
    opacity: 0;
    transition: var(--transition);
}

.btn:hover::before { opacity: 1; }

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.45);
}

.btn-primary:active { transform: translateY(0); }

.btn-primary:focus-visible { outline-offset: 4px; }

/* ============= HERO SECTION ============= */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-bg-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, #0f0f1a 50%, var(--bg-secondary) 100%);
    z-index: 0;
}

[data-theme="light"] .hero-bg-gradient {
    background: linear-gradient(180deg, var(--bg-primary) 0%, #f0f0f5 50%, var(--bg-secondary) 100%);
}


.network-canvas {
    position: absolute;
    inset: 0;
    z-index: 1;
    opacity: 0.6;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 2rem;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 3rem 4rem;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    animation: fadeInUp 1s ease;
}

.hero-greeting {
    font-size: 1.125rem;
    color: var(--primary-light);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.hero-name {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-light) 50%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    min-height: 1.75rem;
}

.tagline-text { color: var(--text-primary); font-weight: 500; }

.tagline-cursor {
    display: inline-block;
    width: 2px;
    height: 1.25rem;
    background: var(--primary);
    margin-left: 2px;
    animation: blink 1s infinite;
}

@keyframes blink { 0%, 50% { opacity: 1; } 51%, 100% { opacity: 0; } }

.hero-description {
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta .cta-arrow {
    transition: var(--transition);
}

.hero-cta:hover .cta-arrow {
    transform: translateX(4px);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-muted);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    z-index: 10;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: var(--border);
    position: relative;
    overflow: hidden;
}

.scroll-dot {
    width: 3px;
    height: 10px;
    background: var(--primary);
    border-radius: 2px;
    position: absolute;
    left: -1px;
    animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
    0% { top: 0; opacity: 0; }
    20% { opacity: 1; }
    80% { opacity: 1; }
    100% { top: 50px; opacity: 0; }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============= SECTION HEADERS ============= */
.section-header { text-align: center; margin-bottom: 4rem; }

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-subtitle { color: var(--text-secondary); max-width: 500px; margin: 0 auto; }


/* ============= ABOUT SECTION - TWO COLUMN LAYOUT ============= */

.about {
    padding: 4rem 0 10rem 0;
    background: linear-gradient(...);
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.08) 0%, var(--bg-secondary) 50%, rgba(249, 115, 22, 0.06) 100%);
    pointer-events: none;
    z-index: 0;
}


@keyframes gradientShift {
    0%, 100% {
        background: 
            radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 40%),
            radial-gradient(circle at 80% 20%, rgba(249, 115, 22, 0.06) 0%, transparent 40%),
            radial-gradient(circle at 60% 80%, rgba(99, 102, 241, 0.04) 0%, transparent 40%);
    }
    50% {
        background: 
            radial-gradient(circle at 30% 60%, rgba(99, 102, 241, 0.1) 0%, transparent 40%),
            radial-gradient(circle at 70% 30%, rgba(249, 115, 22, 0.08) 0%, transparent 40%),
            radial-gradient(circle at 50% 70%, rgba(99, 102, 241, 0.06) 0%, transparent 40%);
    }
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: flex-start;
    position: relative;
    z-index: 1;
}

/* ============= LEFT SIDE: INTERACTIVE PROFILE ============= */

.about-left {
    display: flex;
    justify-content: center;
    perspective: 1000px;
}

.profile-showcase {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    width: 100%;
    max-width: 420px;
    animation: slideInLeft 1s ease-out;
}

.profile-frame {
    position: relative;
    aspect-ratio: 1;
    cursor: pointer;
}

.profile-image-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: none;
}

.profile-frame:hover .profile-image-wrapper {
    transform: none;
}

.profile-image {
    width: 260px;
    height: 260px;
    border-radius: 50%;
    display: block;
    object-fit: cover;
    position: relative;
    z-index: 2;
    box-shadow: 0 30px 80px rgba(99, 102, 241, 0.35);
    animation: profileFloat 3s ease-in-out infinite;
}


.profile-glow {
    position: absolute;
    inset: -30px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    animation: glowPulse 4s ease-in-out infinite;
    z-index: 1;
    filter: blur(20px);
}

.profile-rings {
    position: absolute;
    inset: -50px;
    z-index: 0;
}

.ring {
    position: absolute;
    inset: 0;
    border: 2px solid transparent;
    border-top-color: var(--primary);
    border-right-color: var(--accent);
    border-radius: 50%;
    opacity: 0.6;
}

.ring-1 {
    animation: spin 25s linear infinite;
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.15);
}

.ring-2 {
    inset: -25px;
    animation: spin 18s linear infinite reverse;
    border-top-color: var(--accent);
    border-right-color: var(--primary);
    opacity: 0.4;
}

.ring-3 {
    inset: -45px;
    animation: spin 30s linear infinite;
    border-top-color: rgba(99, 102, 241, 0.5);
    border-right-color: rgba(249, 115, 22, 0.5);
    opacity: 0.3;
}

/* ============= JOURNEY CARDS ============= */

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    padding: 0;
}

.stat-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.75rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(249, 115, 22, 0.1) 100%);
    opacity: 0;
    transition: opacity var(--transition);
    z-index: 0;
}

.stat-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition);
    z-index: 0;
}

.stat-card:hover {
    transform: translateY(-12px) scale(1.05);
    border-color: var(--primary);
    box-shadow: 0 20px 60px rgba(99, 102, 241, 0.2), var(--shadow-glow);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(249, 115, 22, 0.05) 100%);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-card:hover::after {
    opacity: 1;
}

.stat-card-1 { animation: cardBounceIn 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) 0.1s both; }
.stat-card-2 { animation: cardBounceIn 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) 0.2s both; }
.stat-card-3 { animation: cardBounceIn 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) 0.3s both; }
.stat-card-4 { animation: cardBounceIn 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) 0.4s both; }

@keyframes cardBounceIn {
    from {
        opacity: 0;
        transform: translateY(40px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.75rem;
    position: relative;
    z-index: 1;
    transition: all var(--transition);
}

.stat-card:hover .stat-number {
    font-size: 3rem;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 600;
    position: relative;
    z-index: 1;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: color var(--transition);
}

.stat-card:hover .stat-label {
    color: var(--text-primary);
}

/* ============= SKILLS SHOWCASE ============= */

.skills-showcase {
    width: 100%;
    animation: fadeInUp 0.8s ease 0.5s both;
}

.skills-title {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 1.25rem;
    display: block;
}

.skills-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.65rem 1.3rem;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1.5px solid var(--glass-border);
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.skill-badge::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    transform: translateX(-100%);
    transition: transform var(--transition);
}

.skill-badge:hover {
    transform: translateY(-6px) scale(1.08);
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.15);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.25), var(--shadow-glow);
    color: var(--primary);
}

.skill-badge:hover::before {
    transform: translateX(100%);
}

/* ============= RIGHT SIDE: STORY CONTENT ============= */

.about-right {
    display: flex;
    flex-direction: column;
    gap: 0;
    animation: slideInRight 1s ease-out;
}

.story-content {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.story-intro {
    animation: fadeInUp 0.8s ease;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(249, 115, 22, 0.08) 100%);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-left: 4px solid var(--primary);
    border-radius: 16px 16px 0 0;
    position: relative;
    overflow: hidden;
}

.story-intro::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.05), transparent);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.story-intro > * {
    position: relative;
    z-index: 1;
}

.story-greeting {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-light) 50%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.story-text {
    font-size: 1.0625rem;
    line-height: 1.85;
    color: var(--text-secondary);
}

.intro-text {
    padding: 0;
    background: none;
    border: none;
    border-left: none;
    border-radius: 0;
    position: relative;
    overflow: visible;
}

.intro-text::before {
    display: none;
}

.intro-text p {
    position: relative;
    z-index: 1;
}

/* ============= STORY TIMELINE ============= */

.story-timeline {
    position: relative;
    padding: 2rem;
    margin: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-top: none;
    border-radius: 0 0 16px 16px;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.story-timeline::before {
    display: none;
}

.timeline-item {
    position: relative;
    padding: 0;
    margin: 0;
    opacity: 1;
    animation: cardReveal 0.8s ease both;
    display: grid;
    grid-template-columns: 60px 1fr;
    gap: 1.5rem;
    align-items: flex-start;
    width: 100%;
}


.timeline-item-1 { animation-delay: 0.2s; }
.timeline-item-2 { animation-delay: 0.4s; }
.timeline-item-3 { animation-delay: 0.6s; }
.timeline-item-4 { animation-delay: 0.8s; }

@keyframes cardReveal {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.timeline-marker {
    position: relative;
    left: auto;
    top: auto;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border: none;
    z-index: 2;
    cursor: pointer;
    transition: all var(--transition-slow);
    flex-shrink: 0;
    box-shadow: 0 10px 40px rgba(99, 102, 241, 0.3);
    margin-top: 0;
}

.timeline-marker::before {
    content: '';
    position: absolute;
    inset: -8px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    transition: all var(--transition);
}

.timeline-item:hover .timeline-marker {
    transform: scale(1.08);
    box-shadow: 0 12px 30px rgba(99, 102, 241, 0.35);
    transition: all var(--transition-slow);
}


.timeline-item:hover .timeline-marker::before {
    inset: -15px;
}

.marker-dot {
    width: 16px;
    height: 16px;
    background: white;
    border-radius: 50%;
    animation: markerPulse 2s ease-in-out infinite;
}

@keyframes markerPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.8;
    }
}

.timeline-content {
    background: transparent;
    backdrop-filter: none;
    border: none;
    border-radius: 0;
    padding: 0;
    cursor: pointer;
    transition: all var(--transition-slow);
    position: relative;
    overflow: visible;
    text-align: left;
}

.timeline-content::before {
    display: none;
}

.timeline-content::after {
    display: none;
}

.timeline-item:hover .timeline-content {
    background: none;
    border-color: transparent;
    box-shadow: none;
    transform: none;
}

.timeline-item:hover .timeline-content::before,
.timeline-item:hover .timeline-content::after {
    opacity: 0;
}

.timeline-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--primary);
    position: relative;
    z-index: 1;
    transition: color var(--transition);
}

.timeline-item:hover .timeline-title {
    color: var(--accent);
}

.timeline-text {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-secondary);
    position: relative;
    z-index: 1;
    transition: color var(--transition);
}

.timeline-item:hover .timeline-text {
    color: var(--text-primary);
}

/* ============= PROJECTS SECTION ============= */

.projects {
    padding: 4rem 0 10rem 0;
    background: linear-gradient(...);
    position: relative;
    overflow: hidden;
}


.projects::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(249, 115, 22, 0.08) 0%, var(--bg-secondary) 50%, rgba(99, 102, 241, 0.08) 100%);
    pointer-events: none;
    z-index: 0;
}

@keyframes gradientShift {
    0%, 100% {
        background: 
            radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 40%),
            radial-gradient(circle at 80% 20%, rgba(249, 115, 22, 0.06) 0%, transparent 40%),
            radial-gradient(circle at 60% 80%, rgba(99, 102, 241, 0.04) 0%, transparent 40%);
    }
    50% {
        background: 
            radial-gradient(circle at 30% 60%, rgba(99, 102, 241, 0.1) 0%, transparent 40%),
            radial-gradient(circle at 70% 30%, rgba(249, 115, 22, 0.08) 0%, transparent 40%),
            radial-gradient(circle at 50% 70%, rgba(99, 102, 241, 0.06) 0%, transparent 40%);
    }
}

.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* ============= PROJECT CARD ============= */

.project-card {
    position: relative;
    cursor: pointer;
    animation: projectSlideIn 0.8s ease-out both;
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 2.5rem;
    align-items: center;
}

.project-card:nth-child(1) { animation-delay: 0.1s; }
.project-card:nth-child(2) { animation-delay: 0.25s; }
.project-card:nth-child(3) { animation-delay: 0.4s; }
.project-card:nth-child(4) { animation-delay: 0.55s; }
.project-card:nth-child(5) { animation-delay: 0.7s; }
.project-card:nth-child(6) { animation-delay: 0.85s; }

@keyframes projectSlideIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============= PROJECT VISUAL ============= */

.project-visual {
    position: relative;
    width: 200px;
    height: 200px;
    border-radius: 16px;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-slow);
    flex-shrink: 0;
}

.project-card:hover .project-visual {
    transform: scale(1.08);
    box-shadow: 0 20px 60px rgba(99, 102, 241, 0.3);
}

.project-visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.15) 100%);
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.project-card:hover .project-visual::before {
    opacity: 1;
}

.project-visual::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.25) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition);
}

.project-card:hover .project-visual::after {
    opacity: 1;
}

/* Demo Animation Elements */
.demo-nodes {
    position: relative;
    width: 120px;
    height: 120px;
}

.demo-node {
    position: absolute;
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.85);
    border-radius: 50%;
    animation: nodeFloat 4s ease-in-out infinite;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.3);
}

.demo-node:nth-child(1) { top: 15%; left: 15%; animation-delay: 0s; }
.demo-node:nth-child(2) { top: 20%; left: 75%; animation-delay: 0.7s; }
.demo-node:nth-child(3) { top: 65%; left: 50%; animation-delay: 1.4s; }
.demo-node:nth-child(4) { top: 75%; left: 25%; animation-delay: 2.1s; }
.demo-node:nth-child(5) { top: 50%; left: 80%; animation-delay: 2.8s; }

@keyframes nodeFloat {
    0%, 100% { 
        transform: translateY(0) scale(1); 
        opacity: 0.85;
    }
    50% { 
        transform: translateY(-20px) scale(1.15); 
        opacity: 1;
    }
}

.project-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.3));
    animation: iconPulse 4s ease-in-out infinite;
}

@keyframes iconPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.12); }
}

/* ============= PROJECT CONTENT ============= */

.project-content {
    padding: 2rem;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-slow);
}

.project-content::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: opacity var(--transition);
}

.project-content::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition);
}

.project-card:hover .project-content {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(249, 115, 22, 0.08) 100%);
    border-color: var(--primary);
    box-shadow: 0 20px 60px rgba(99, 102, 241, 0.2), var(--shadow-glow);
}

.project-card:hover .project-content::before,
.project-card:hover .project-content::after {
    opacity: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project-tags span {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary-light);
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: all var(--transition);
    border: 1px solid transparent;
}

.project-card:hover .project-tags span {
    background: rgba(99, 102, 241, 0.3);
    border-color: rgba(99, 102, 241, 0.5);
    transform: translateY(-2px);
}

.project-content h3 {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--primary);
    transition: color var(--transition);
    position: relative;
    z-index: 1;
}

.project-card:hover .project-content h3 {
    color: var(--accent);
}

.project-content p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
    transition: color var(--transition);
    position: relative;
    z-index: 1;
}

.project-card:hover .project-content p {
    color: var(--text-primary);
}

.project-btn {
    align-self: flex-start;
    padding: 0.65rem 1.5rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 2;
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

.project-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: translateX(-100%);
    transition: transform var(--transition);
}

.project-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
}

.project-btn:hover::before {
    transform: translateX(100%);
}

.project-btn:active {
    transform: translateY(-1px);
}

/* ============= CONTACT SECTION ============= */
.contact { padding: 8rem 0; }

.contact-wrapper {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-form { display: flex; flex-direction: column; gap: 1.5rem; }

.quick-messages { margin-bottom: 1rem; }
.quick-messages p { font-size: 0.875rem; color: var(--text-muted); margin-bottom: 0.75rem; }

.quick-btns { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.quick-btn {
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

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

.quick-btn:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.form-group { position: relative; }

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

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

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.input-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.form-group input:focus ~ .input-line,
.form-group textarea:focus ~ .input-line { width: 100%; }

.error-msg {
    display: none;
    font-size: 0.75rem;
    color: #ef4444;
    margin-top: 0.25rem;
}

.form-group.error input,
.form-group.error textarea { border-color: #ef4444; }
.form-group.error .error-msg { display: block; }

.btn-submit {
    position: relative;
    height: 52px;
    overflow: hidden;
}

.btn-content,
.btn-loading,
.btn-success {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.btn-loading,
.btn-success { opacity: 0; transform: translateY(20px); }

.btn-submit.loading .btn-content { opacity: 0; transform: translateY(-20px); }
.btn-submit.loading .btn-loading { opacity: 1; transform: translateY(0); }
.btn-submit.success .btn-content { opacity: 0; transform: translateY(-20px); }
.btn-submit.success .btn-loading { opacity: 0; }
.btn-submit.success .btn-success { opacity: 1; transform: translateY(0); }
.btn-submit.success { background: linear-gradient(135deg, #10b981 0%, #059669 100%); }

.spinner { width: 24px; height: 24px; animation: spin 1s linear infinite; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.btn-success svg { width: 20px; height: 20px; }

.form-note { font-size: 0.75rem; color: var(--text-muted); text-align: center; }

.contact-info { display: flex; flex-direction: column; gap: 2rem; }

.info-block h4 { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 0.75rem; }

.info-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
}

.info-link:hover { color: var(--primary); }
.info-link:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.social-links { display: flex; gap: 1.25rem; justify-content: center; }


.social-link {
    width: 50px;
    height: 50px;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-slow);
}

.social-link:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-color: var(--primary);
    color: white;
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(99, 102, 241, 0.3);
}

.social-link:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ============= KEYBOARD SHORTCUTS ============= */
.keyboard-shortcuts {
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.keyboard-shortcuts h4 { margin-bottom: 1rem; }

.shortcut-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.shortcut {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.shortcut dt {
    flex-shrink: 0;
}

.shortcut dd {
    margin: 0;
}

kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 0.5rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
}

/* ============= FOOTER ============= */
.footer {
    padding: 4rem 0 3rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    border-top: 1px solid var(--border);
}


/* ============= BACK TO TOP BUTTON ============= */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--primary); border-color: var(--primary); color: white; }
.back-to-top:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.progress-ring { position: absolute; inset: 0; transform: rotate(-90deg); }
.progress-ring-bg { stroke: var(--border); }
.progress-ring-fill { stroke: var(--primary); transition: stroke-dashoffset 0.1s; }

.arrow-icon { position: relative; z-index: 1; color: var(--text-primary); }
.back-to-top:hover .arrow-icon { color: white; }

/* ============= MODAL ============= */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    padding: 2rem;
}

.modal-overlay.active { opacity: 1; visibility: visible; }

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 24px;
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: var(--transition);
    position: relative;
}

.modal-overlay.active .modal { transform: scale(1) translateY(0); }

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
    z-index: 10;
}

.modal-close:hover { background: var(--primary); border-color: var(--primary); color: white; }
.modal-close:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.modal-content { padding: 2rem; }

.modal-content h2 { font-family: var(--font-display); font-size: 1.5rem; margin-bottom: 1rem; }
.modal-content p { color: var(--text-secondary); margin-bottom: 1rem; }

/* ============= ANIMATIONS ============= */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-animate].visible { opacity: 1; transform: translateY(0); }

[data-animate="fade-left"] { transform: translateX(-30px); }
[data-animate="fade-left"].visible { transform: translateX(0); }

[data-animate="fade-right"] { transform: translateX(30px); }
[data-animate="fade-right"].visible { transform: translateX(0); }

/* ============= RESPONSIVE DESIGN ============= */
@media (max-width: 992px) {
    .hero-intro {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .about-container {
        grid-template-columns: 1fr;
        gap: 4rem;
    }

    .contact-wrapper { grid-template-columns: 1fr; gap: 3rem; }

    .timeline-line { left: 20px; }
    .timeline-item { padding-left: 60px !important; padding-right: 0 !important; justify-content: flex-start !important; }
    .timeline-marker { left: auto !important; transform: none; }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 1.5rem;
        gap: 1rem;
        border-bottom: 1px solid var(--border);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    .nav-menu.active { transform: translateY(0); opacity: 1; visibility: visible; }
    .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .nav-toggle.active span:nth-child(2) { opacity: 0; }
    .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

    .glass-card { padding: 2rem; }
    .hero-name { font-size: 2rem; }
    .hero-intro {
        grid-template-columns: 1fr;
    }

    .hero-profile-image {
        width: 180px;
        height: 180px;
        font-size: 3.5rem;
    }

    .profile-showcase {
        max-width: 300px;
        gap: 2rem;
        margin: 0 auto;
    }

    .profile-image {
        width: 200px;
        height: 200px;
        font-size: 3.5rem;
    }

    .story-greeting {
        font-size: 1.75rem;
    }

    .story-intro {
        border-radius: 16px;
        padding: 1.5rem;
    }

    .story-timeline {
        border-radius: 16px;
        margin-top: 1rem;
        border-top: 1px solid var(--glass-border);
        padding: 1.5rem;
        gap: 1.5rem;
    }

    .timeline-item {
        grid-template-columns: 50px 1fr;
        gap: 1rem;
        margin-bottom: 0;
        width: 100%;
    }

    .timeline-marker {
        width: 50px;
        height: 50px;
        position: relative;
        left: auto;
        top: auto;
        flex-shrink: 0;
    }

    .projects-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .theme-toggle { top: 1rem; right: 4rem; }

    .modal-content { padding: 1.5rem; }
    .modal-close { top: 0.75rem; right: 0.75rem; width: 36px; height: 36px; }

    .stats-grid {
        gap: 1rem;
    }

    .skills-container {
        gap: 0.6rem;
    }

    .skill-badge {
        padding: 0.5rem 1rem;
        font-size: 0.75rem;
    }
}