/* ========================================
   CSS Variables & Reset
   ======================================== */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a2e;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6b6b80;
    --accent-1: #667eea;
    --accent-2: #764ba2;
    --accent-3: #f093fb;
    --gradient-main: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --border-color: rgba(255, 255, 255, 0.06);
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-hover: rgba(255, 255, 255, 0.06);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --font-primary: 'Inter', -apple-system, sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 20px;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    cursor: none;
}

a {
    text-decoration: none;
    color: inherit;
    cursor: none;
}

button, input, textarea {
    cursor: none;
}

/* ========================================
   Custom Cursor
   ======================================== */
.cursor {
    width: 8px;
    height: 8px;
    background: var(--accent-1);
    border-radius: 50%;
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 10000;
    transition: transform 0.1s ease;
    mix-blend-mode: difference;
}

.cursor-follower {
    width: 36px;
    height: 36px;
    border: 1.5px solid rgba(102, 126, 234, 0.5);
    border-radius: 50%;
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.15s ease, width 0.3s ease, height 0.3s ease, border-color 0.3s ease;
}

.cursor-hover .cursor {
    transform: scale(3);
    background: var(--accent-3);
}

.cursor-hover .cursor-follower {
    width: 50px;
    height: 50px;
    border-color: rgba(240, 147, 251, 0.5);
}

/* ========================================
   Navigation - Floating Bottom Bar
   ======================================== */
.navbar {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    padding: 0.6rem 1rem;
    backdrop-filter: blur(20px);
    background: rgba(18, 18, 26, 0.85);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 0.25rem;
    align-items: center;
}

.nav-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
    padding: 0.5rem 1rem;
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--text-muted);
    border-radius: 20px;
    transition: var(--transition);
    position: relative;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.nav-link svg {
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.06);
}

.nav-link:hover svg {
    stroke: var(--accent-1);
}

.nav-link.active {
    color: var(--text-primary);
    background: rgba(102, 126, 234, 0.15);
}

.nav-link.active svg {
    stroke: var(--accent-1);
}

.nav-link::after {
    display: none;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 3rem 3rem 5rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 8s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: var(--accent-1);
    top: -10%;
    right: -10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--accent-2);
    bottom: -10%;
    left: -10%;
    animation-delay: -3s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: var(--accent-3);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -5s;
    opacity: 0.2;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.tag-dot {
    width: 8px;
    height: 8px;
    background: #4ade80;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
}

.title-line {
    display: block;
}

.gradient-text {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.typing-text {
    color: var(--accent-3);
    -webkit-text-fill-color: var(--accent-3);
}

.typing-cursor {
    color: var(--accent-1);
    -webkit-text-fill-color: var(--accent-1);
    animation: blink 1s step-end infinite;
}

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

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 550px;
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 1.8rem;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    font-family: var(--font-primary);
}

.btn-primary {
    background: var(--gradient-main);
    color: white;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.5);
}

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

.btn-secondary:hover {
    background: var(--card-hover);
    border-color: var(--accent-1);
}

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

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--accent-1), transparent);
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ========================================
   Sections Common
   ======================================== */
.section {
    padding: 8rem 3rem;
    position: relative;
}

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

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-1);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.3;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-top: 1rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* ========================================
   About Section
   ======================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: center;
}

.image-wrapper {
    position: relative;
    aspect-ratio: 3/4;
    max-width: 350px;
    margin: 0 auto;
}

.profile-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.image-border {
    position: absolute;
    inset: -8px;
    border: 2px solid transparent;
    border-radius: calc(var(--radius-lg) + 8px);
    background: var(--gradient-main) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.5;
}

.about-text {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.9;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2.5rem;
    padding-top: 2.5rem;
    border-top: 1px solid var(--border-color);
}

.stat {
    text-align: center;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-plus {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
}

/* ========================================
   Projects Section
   ======================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.project-image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}

.project-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 600;
    transition: var(--transition-slow);
}

.project-card:hover .project-placeholder {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 15, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

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

.project-link {
    width: 50px;
    height: 50px;
    background: var(--gradient-main);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transform: scale(0.8);
    transition: var(--transition);
}

.project-card:hover .project-link {
    transform: scale(1);
}

.project-info {
    padding: 1.5rem;
}

.project-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 0.8rem;
}

.project-tags span {
    font-size: 0.75rem;
    padding: 0.25rem 0.6rem;
    background: rgba(102, 126, 234, 0.1);
    color: var(--accent-1);
    border-radius: 50px;
    border: 1px solid rgba(102, 126, 234, 0.2);
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.project-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========================================
   Skills Section
   ======================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.skill-category {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: var(--transition);
}

.skill-category:hover {
    border-color: rgba(102, 126, 234, 0.3);
    background: var(--card-hover);
}

.skill-category-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.6rem 0.8rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.skill-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.skill-icon {
    font-size: 1.3rem;
    width: 30px;
    text-align: center;
}

.skill-item span {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* ========================================
   Contact Section
   ======================================== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: start;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-icon {
    font-size: 1.5rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.contact-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.2rem;
}

.contact-value {
    font-size: 1rem;
    color: var(--text-primary);
    transition: var(--transition);
}

a.contact-value:hover {
    color: var(--accent-1);
}

.contact-socials {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--gradient-main);
    border-color: transparent;
    color: white;
    transform: translateY(-3px);
}

/* Contact Form */
.contact-form {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
}

.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.2rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent-1);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group label {
    position: absolute;
    top: 50%;
    left: 1.2rem;
    transform: translateY(-50%);
    font-size: 0.9rem;
    color: var(--text-muted);
    pointer-events: none;
    transition: var(--transition);
    opacity: 0;
}

.form-group textarea ~ label {
    top: 1.2rem;
    transform: none;
}

.form-group input:focus ~ label,
.form-group textarea:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
    top: -0.6rem;
    left: 0.8rem;
    font-size: 0.75rem;
    background: var(--bg-primary);
    padding: 0 0.3rem;
    opacity: 1;
    color: var(--accent-1);
}

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

/* ========================================
   Footer
   ======================================== */
.footer {
    padding: 3rem;
    border-top: 1px solid var(--border-color);
}

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

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.footer-copyright {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: 0.5rem;
}

/* ========================================
   Reveal Animations
   ======================================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    html {
        scroll-padding-top: 20px;
    }

    .cursor, .cursor-follower {
        display: none;
    }

    body {
        cursor: auto;
    }

    a, button, input, textarea {
        cursor: auto;
    }

    .navbar {
        bottom: 1rem;
        padding: 0.5rem 0.6rem;
    }

    .nav-link {
        padding: 0.4rem 0.7rem;
        font-size: 0.55rem;
    }

    .nav-link svg {
        width: 18px;
        height: 18px;
    }

    .hero {
        padding: 3rem 1.5rem 5rem;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .section {
        padding: 5rem 1.5rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .about-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .contact-form {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        justify-content: center;
    }

    .about-stats {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* ========================================
   Smooth Parallax for Orbs
   ======================================== */
.hero-bg .gradient-orb {
    will-change: transform;
}

/* Noise texture overlay */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 1;
}