/* ========================================
   VARIABLES & RESET
   ======================================== */
:root {
    --bg-primary: #050505;
    --bg-secondary: #0a0a0a;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);
    --border-card: rgba(255, 255, 255, 0.08);
    --border-card-hover: rgba(255, 255, 255, 0.15);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.4);
    --accent: #00e5ff;
    --accent-glow: rgba(0, 229, 255, 0.15);
    --accent-pink: #ff4da6;
    --accent-green: #00e676;
    --accent-purple: #b388ff;
    --accent-orange: #ffab40;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    --max-width: 1200px;
    --radius: 16px;
    --radius-sm: 8px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s;
}

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

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.3s;
    background: transparent;
}

.navbar.scrolled {
    background: rgba(5, 5, 5, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-card);
    padding: 14px 0;
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -1px;
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.3s;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.3s;
}

.nav-links a:hover {
    color: var(--text-primary);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    font-size: 14px;
    font-weight: 500;
    padding: 10px 24px;
    border: 1px solid var(--accent);
    border-radius: 100px;
    color: var(--accent);
    transition: all 0.3s;
}

.nav-cta:hover {
    background: var(--accent);
    color: var(--bg-primary);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s;
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 120px 24px 80px;
    text-align: center;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    animation: glowPulse 6s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.4; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.7; transform: translate(-50%, -50%) scale(1.1); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-greeting {
    font-size: 16px;
    font-weight: 500;
    color: var(--accent);
    margin-bottom: 24px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(40px, 7vw, 72px);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-title em {
    font-family: var(--font-serif);
    color: var(--accent);
    font-style: italic;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 64px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-sans);
    font-size: 15px;
    font-weight: 600;
    padding: 14px 32px;
    border-radius: 100px;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
}

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

.btn-primary:hover {
    background: #33ebff;
    box-shadow: 0 0 30px var(--accent-glow);
    transform: translateY(-2px);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-sent {
    background: var(--accent-green) !important;
}

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

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

.btn-download svg {
    flex-shrink: 0;
}

.btn-full {
    width: 100%;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 64px;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-primary);
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ========================================
   SECTION GRADIENT GLOWS
   ======================================== */
.section-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    filter: blur(80px);
    opacity: 0.6;
    animation: glowPulse 8s ease-in-out infinite;
}

.section-glow ~ .container { position: relative; z-index: 1; }

.glow-center { top: 50%; left: 50%; transform: translate(-50%, -50%); }
.glow-left { top: 30%; left: -10%; }
.glow-right { top: 30%; right: -10%; left: auto; }
.glow-bottom-left { bottom: -20%; left: -5%; top: auto; }
.glow-bottom-right { bottom: -20%; right: -5%; left: auto; top: auto; }

.section-dark { background: var(--bg-secondary); }

/* ========================================
   SECTIONS (Shared)
   ======================================== */
.section {
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

.section-badge {
    display: inline-block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    border: 1px solid var(--border-card);
    padding: 6px 20px;
    border-radius: 100px;
    margin-bottom: 20px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 700;
    margin-bottom: 8px;
}

.section-title em {
    font-family: var(--font-serif);
    color: var(--accent);
    font-style: italic;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 60px;
}

.about .container,
.projects .container,
.skills .container,
.experience .container,
.testimonials .container {
    text-align: center;
}

/* ========================================
   ABOUT SECTION
   ======================================== */
.about-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
    max-width: 700px;
    margin: 0 auto;
}

.about-text p {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.8;
    text-align: left;
    margin-bottom: 16px;
}

.about-links {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    justify-content: center;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 12px 24px;
    border: 1px solid var(--border-card);
    border-radius: 100px;
    transition: all 0.3s;
}

.social-link:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-glow);
}

/* ========================================
   PROJECTS SECTION
   ======================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    text-align: left;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.4s;
}

.project-card:hover {
    border-color: var(--border-card-hover);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
}

.project-image {
    position: relative;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.project-icon {
    color: rgba(255, 255, 255, 0.3);
    transition: all 0.4s;
}

.project-card:hover .project-icon {
    color: rgba(255, 255, 255, 0.6);
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

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

.project-link-btn {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    border: 1px solid var(--accent);
    padding: 10px 24px;
    border-radius: 100px;
    transition: all 0.3s;
}

.project-link-btn:hover {
    background: var(--accent);
    color: var(--bg-primary);
}

.project-info {
    padding: 24px;
}

.project-info h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.project-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 4px;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-info p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

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

.project-tech span {
    font-size: 11px;
    font-weight: 500;
    padding: 4px 12px;
    border-radius: 100px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

/* GitHub CTA */
.github-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 48px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-secondary);
    padding: 14px 32px;
    border: 1px solid var(--border-card);
    border-radius: 100px;
    transition: all 0.3s;
}

.github-cta:hover {
    color: var(--text-primary);
    border-color: var(--border-card-hover);
    background: var(--bg-card);
    transform: translateY(-2px);
}

/* ========================================
   SKILLS SECTION
   ======================================== */
.skills {
    background: var(--bg-secondary);
}

.skills-categories {
    display: flex;
    flex-direction: column;
    gap: 48px;
    text-align: left;
}

.skill-category {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius);
    padding: 32px;
}

.category-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 28px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-card);
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    transition: all 0.3s;
    cursor: default;
}

.skill-item:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(255, 255, 255, 0.12);
    transform: translateY(-2px);
}

.skill-item img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    flex-shrink: 0;
}

.skill-item img.invert-logo {
    filter: invert(1);
}

.skill-item span {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

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

/* ========================================
   EXPERIENCE / JOURNEY SECTION
   ======================================== */
.journey-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    text-align: left;
}

.journey-card {
    position: relative;
    border: 1px solid var(--border-card);
    border-radius: var(--radius);
    padding: 40px 32px 32px;
    transition: all 0.4s;
    background: linear-gradient(180deg, rgba(0, 229, 255, 0.02) 0%, var(--bg-card) 100%);
}

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

.journey-number {
    position: absolute;
    top: -16px;
    left: 32px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border: 1px solid var(--border-card-hover);
    border-radius: 50%;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
}

.journey-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 4px;
}

.journey-place {
    font-size: 14px;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 12px;
}

.journey-card p:last-child {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   TESTIMONIALS SECTION
   ======================================== */
.testimonials {
    background: var(--bg-secondary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    text-align: left;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius);
    padding: 32px;
    transition: all 0.4s;
}

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

.testimonial-stars {
    display: flex;
    gap: 2px;
    color: var(--accent-orange);
    margin-bottom: 20px;
}

.testimonial-quote {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-purple));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}

.testimonial-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-avatar span {
    font-size: 16px;
    font-weight: 700;
    color: white;
}

.testimonial-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.testimonial-role {
    font-size: 12px;
    color: var(--text-muted);
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact .container {
    text-align: center;
}

.contact-title {
    font-family: var(--font-serif);
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 700;
    margin-bottom: 8px;
}

.contact-title em {
    font-family: var(--font-serif);
    color: var(--accent);
    font-style: italic;
}

.contact-subtitle {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 60px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    text-align: left;
    max-width: 900px;
    margin: 0 auto;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 28px;
}

.contact-item svg {
    color: var(--accent);
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.contact-item a,
.contact-item p {
    font-size: 15px;
    color: var(--text-secondary);
}

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

.contact-socials {
    display: flex;
    gap: 16px;
    margin-top: 12px;
}

.contact-social-link {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-card);
    border-radius: 50%;
    color: var(--text-secondary);
    transition: all 0.3s;
}

.contact-social-link:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-glow);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    font-family: var(--font-sans);
    font-size: 15px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.3s;
    resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

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

/* ========================================
   FOOTER
   ======================================== */
.footer {
    border-top: 1px solid var(--border-card);
    padding: 48px 0 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 48px;
}

.footer-links {
    display: flex;
    gap: 24px;
    margin-top: 20px;
}

.footer-links a {
    font-size: 14px;
    color: var(--text-muted);
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-socials {
    display: flex;
    gap: 16px;
    margin-top: 20px;
}

.footer-socials a {
    color: var(--text-muted);
    transition: color 0.3s;
}

.footer-socials a:hover {
    color: var(--accent);
}

.footer-right {
    text-align: right;
}

.footer-location {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.footer-right a {
    font-size: 14px;
    color: var(--text-muted);
}

.footer-right a:hover {
    color: var(--accent);
}

.footer-bottom {
    border-top: 1px solid var(--border-card);
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--text-muted);
}

/* ========================================
   ANIMATIONS
   ======================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in-stagger.visible > *:nth-child(1) { transition-delay: 0s; }
.fade-in-stagger.visible > *:nth-child(2) { transition-delay: 0.1s; }
.fade-in-stagger.visible > *:nth-child(3) { transition-delay: 0.15s; }
.fade-in-stagger.visible > *:nth-child(4) { transition-delay: 0.2s; }
.fade-in-stagger.visible > *:nth-child(5) { transition-delay: 0.25s; }
.fade-in-stagger.visible > *:nth-child(6) { transition-delay: 0.3s; }

.fade-in-stagger.visible > * {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   MOBILE MENU OVERLAY
   ======================================== */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(5, 5, 5, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 999;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    opacity: 0;
    transition: opacity 0.3s;
}

.mobile-nav-overlay.active {
    display: flex;
    opacity: 1;
}

.mobile-nav-overlay a {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-secondary);
    transition: color 0.3s;
}

.mobile-nav-overlay a:hover {
    color: var(--accent);
}

.mobile-nav-close {
    position: absolute;
    top: 24px;
    right: 24px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 32px;
    cursor: pointer;
}

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

@media (max-width: 768px) {
    .nav-links,
    .nav-cta {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero {
        padding: 100px 24px 60px;
    }

    .hero-stats {
        gap: 32px;
    }

    .stat-number {
        font-size: 28px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .section {
        padding: 80px 0;
    }

    .projects-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
    }

    .skill-items {
        gap: 10px;
    }

    .skill-item {
        padding: 10px 16px;
    }

    .skill-category {
        padding: 24px;
    }

    .journey-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
    }

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

    .footer-content {
        flex-direction: column;
        gap: 32px;
    }

    .footer-right {
        text-align: left;
    }

    .about-links {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .section-title {
        font-size: 28px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .skill-item img {
        width: 24px;
        height: 24px;
    }

    .skill-item span {
        font-size: 13px;
    }
}