/* ============================================
   PORTFOLIO — DARK MODERN THEME
   ============================================ */

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #0f0f17;
    --bg-card: #13131c;
    --bg-card-hover: #1a1a25;
    --border: #1f1f2e;
    --border-hover: #2a2a3e;
    --text-primary: #e8e8f0;
    --text-secondary: #a0a0b8;
    --text-muted: #6b6b80;
    --accent: #00d9a3;
    --accent-glow: rgba(0, 217, 163, 0.4);
    --accent-secondary: #7c5cff;
    --accent-secondary-glow: rgba(124, 92, 255, 0.4);
    --gradient: linear-gradient(135deg, #00d9a3 0%, #7c5cff 100%);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --font-display: 'Space Grotesk', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

/* ============================================
   BACKGROUND EFFECTS
   ============================================ */

.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 30%, transparent 100%);
}

.bg-glow {
    position: fixed;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
    opacity: 0.15;
    pointer-events: none;
    z-index: 0;
    filter: blur(80px);
}

/* ============================================
   NAVBAR
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1rem 0;
    transition: all var(--transition);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    gap: 0.25rem;
    align-items: center;
}

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

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 0.5rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent);
    background: rgba(0, 217, 163, 0.08);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
}

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

.menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   HERO
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 8rem 2rem 4rem;
    z-index: 1;
}

.hero-content {
    max-width: 900px;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(0, 217, 163, 0.08);
    border: 1px solid rgba(0, 217, 163, 0.25);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 2rem;
    font-family: var(--font-mono);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 0 0 var(--accent-glow);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 var(--accent-glow); }
    70% { box-shadow: 0 0 0 10px transparent; }
    100% { box-shadow: 0 0 0 0 transparent; }
}

.hero-title {
    font-size: clamp(2.5rem, 7vw, 5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero-title .line {
    display: block;
}

.hero-title .line:nth-child(1) {
    font-size: 0.5em;
    color: var(--text-muted);
    font-weight: 400;
    margin-bottom: 0.5rem;
}

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

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 4rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    font-family: var(--font-display);
    transition: all var(--transition);
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
    box-shadow: 0 0 30px var(--accent-glow);
}

.btn-primary:hover {
    background: #00f0b5;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

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

.btn-ghost:hover {
    background: var(--bg-card);
    border-color: var(--accent);
    transform: translateY(-2px);
}

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

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

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

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 0.25rem;
}

.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;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

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

@keyframes scroll-pulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ============================================
   SECTIONS — common
   ============================================ */

section {
    position: relative;
    z-index: 1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    margin-bottom: 4rem;
    max-width: 700px;
}

.section-tag {
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 0.85rem;
    display: block;
    margin-bottom: 0.75rem;
    letter-spacing: 0.05em;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* ============================================
   ABOUT
   ============================================ */

.about {
    padding: 6rem 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    font-size: 1.05rem;
}

.highlight {
    color: var(--text-primary);
    font-weight: 600;
    position: relative;
    white-space: nowrap;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient);
    opacity: 0.6;
}

.about-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.tag {
    padding: 0.4rem 0.9rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.terminal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-left: 0.5rem;
}

.terminal-body {
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 2;
}

.terminal-body .line {
    color: var(--text-primary);
}

.terminal-body .output {
    color: var(--accent);
    padding-left: 0;
}

.prompt {
    color: var(--accent-secondary);
    margin-right: 0.5rem;
}

.cursor {
    animation: blink 1s infinite;
    color: var(--accent);
}

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

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

.skills {
    padding: 6rem 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.skill-category {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    transition: all var(--transition);
}

.skill-category:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.skill-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: rgba(0, 217, 163, 0.1);
    border: 1px solid rgba(0, 217, 163, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    margin-bottom: 1.25rem;
}

.skill-category h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.skill-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

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

.skill-item {
    font-size: 0.9rem;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.4rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.skill-percent {
    color: var(--accent);
}

.skill-bar {
    height: 6px;
    background: var(--bg-primary);
    border-radius: 100px;
    overflow: hidden;
    position: relative;
}

.skill-fill {
    height: 100%;
    background: var(--gradient);
    border-radius: 100px;
    width: 0;
    transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 10px var(--accent-glow);
}

.tech-belt {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
}

.tech-pill {
    padding: 0.4rem 0.9rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    transition: all var(--transition);
}

.tech-pill:hover {
    color: var(--accent);
    border-color: var(--accent);
}

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

.projects {
    padding: 6rem 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    transition: all var(--transition);
    position: relative;
}

.project-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow);
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 217, 163, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 217, 163, 0.05) 1px, transparent 1px);
    background-size: 30px 30px;
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 50%, var(--accent-glow) 0%, transparent 70%);
    opacity: 0.3;
    transition: opacity var(--transition);
}

.project-card:hover .project-overlay {
    opacity: 0.5;
}

.project-num {
    font-family: var(--font-mono);
    font-size: 4rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.05);
    z-index: 1;
}

.project-content {
    padding: 1.75rem;
}

.project-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.project-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1.25rem;
}

.project-tags span {
    padding: 0.25rem 0.6rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.project-links {
    display: flex;
    gap: 1.25rem;
}

.project-link {
    color: var(--accent);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition);
}

.project-link:hover {
    color: #00f0b5;
}

/* ============================================
   CONTACT
   ============================================ */

.contact {
    padding: 6rem 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.05rem;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    transition: all var(--transition);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.contact-link:hover {
    color: var(--accent);
    border-color: var(--accent);
    transform: translateX(4px);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group textarea {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.875rem 1rem;
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 0.95rem;
    transition: all var(--transition);
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 217, 163, 0.1);
}

.form-status {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent);
    min-height: 1.2em;
    text-align: center;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    padding: 3rem 0;
    border-top: 1px solid var(--border);
}

.footer-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: center;
}

.footer-logo {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    gap: 0.25rem;
    margin-bottom: 0.5rem;
}

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

.footer-copy {
    font-family: var(--font-mono);
    font-size: 0.8rem !important;
}

/* ============================================
   SCROLL REVEAL
   ============================================ */

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 900px) {
    .about-grid,
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .menu-toggle {
        display: flex;
        z-index: 110;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: 280px;
        background: var(--bg-secondary);
        border-left: 1px solid var(--border);
        flex-direction: column;
        padding: 5rem 2rem 2rem;
        gap: 0.5rem;
        transform: translateX(100%);
        transition: transform var(--transition);
    }

    .nav-links.open {
        transform: translateX(0);
    }

    .nav-link {
        padding: 0.75rem 1rem;
        font-size: 1rem;
    }

    .hero-stats {
        gap: 2rem;
    }

    .stat-num {
        font-size: 2rem;
    }
}

@media (max-width: 600px) {
    .container {
        padding: 0 1.25rem;
    }

    .hero {
        padding: 6rem 1.25rem 3rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        justify-content: center;
    }

    .scroll-indicator {
        display: none;
    }

    .about,
    .skills,
    .projects,
    .contact {
        padding: 4rem 0;
    }

    .terminal-body {
        font-size: 0.8rem;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

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

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

::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-hover);
    border-radius: 10px;
}

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