/* NSA — Dark Digital Theme */

:root {
    --bg-deep:    #050810;
    --bg-panel:   #0a0e17;
    --bg-card:    #0f1520;
    --border:     #1a2332;
    --text:       #c8d6e5;
    --text-dim:   #5a6a7e;
    --cyan:       #00f0ff;
    --purple:     #7b2ff7;
    --pink:       #ff006e;
    --green:      #39ff14;
    --glow-cyan:  0 0 20px rgba(0, 240, 255, 0.3);
    --glow-purple:0 0 20px rgba(123, 47, 247, 0.3);
    --font-display: 'Orbitron', sans-serif;
    --font-body:    'Rajdhani', sans-serif;
    --font-mono:    'JetBrains Mono', monospace;
    --header-h:     72px;
    --transition:   0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-h);
}

body {
    font-family: var(--font-body);
    font-size: 18px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg-deep);
    overflow-x: hidden;
}

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

a:hover { color: #fff; }

/* Background layers */
#grid-canvas {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

.scanlines {
    position: fixed;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.03) 2px,
        rgba(0, 0, 0, 0.03) 4px
    );
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    background: rgba(5, 8, 16, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.logo {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: 1.5rem;
    letter-spacing: 0.2em;
    color: var(--cyan);
    text-shadow: var(--glow-cyan);
    position: relative;
}

.logo::after {
    content: attr(data-text);
    position: absolute;
    left: 2px;
    top: 0;
    color: var(--purple);
    opacity: 0;
    animation: logo-glitch 4s infinite;
    clip-path: inset(0 0 0 0);
}

@keyframes logo-glitch {
    0%, 90%, 100% { opacity: 0; transform: translate(0); }
    91% { opacity: 0.8; transform: translate(-2px, 1px); clip-path: inset(20% 0 60% 0); }
    93% { opacity: 0.8; transform: translate(2px, -1px); clip-path: inset(60% 0 10% 0); }
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav a {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    position: relative;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--cyan);
    transition: width var(--transition);
    box-shadow: var(--glow-cyan);
}

.nav a:hover { color: var(--cyan); }
.nav a:hover::after { width: 100%; }

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

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--cyan);
    transition: var(--transition);
}

main {
    position: relative;
    z-index: 2;
}

.section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 6rem 2rem;
}

.section-header {
    margin-bottom: 3rem;
}

.section-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--purple);
    letter-spacing: 0.15em;
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    color: #fff;
    margin-top: 0.5rem;
}

/* Hero */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: calc(var(--header-h) + 2rem) 2rem 4rem;
}

.hero-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-dim);
    letter-spacing: 0.2em;
    margin-bottom: 1rem;
}

.blink {
    color: var(--green);
    animation: blink 1.5s step-end infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(4rem, 12vw, 8rem);
    font-weight: 900;
    line-height: 0.9;
    margin-bottom: 0.5rem;
}

.glitch {
    position: relative;
    color: #fff;
    text-shadow: 0 0 40px rgba(0, 240, 255, 0.5);
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch::before {
    color: var(--cyan);
    animation: glitch-1 3s infinite linear alternate-reverse;
    clip-path: polygon(0 0, 100% 0, 100% 35%, 0 35%);
}

.glitch::after {
    color: var(--purple);
    animation: glitch-2 2s infinite linear alternate-reverse;
    clip-path: polygon(0 65%, 100% 65%, 100% 100%, 0 100%);
}

@keyframes glitch-1 {
    0% { transform: translate(0); }
    20% { transform: translate(-3px, 2px); }
    40% { transform: translate(3px, -2px); }
    60% { transform: translate(-2px, -1px); }
    80% { transform: translate(2px, 1px); }
    100% { transform: translate(0); }
}

@keyframes glitch-2 {
    0% { transform: translate(0); }
    20% { transform: translate(3px, -2px); }
    40% { transform: translate(-3px, 2px); }
    60% { transform: translate(2px, 1px); }
    80% { transform: translate(-2px, -1px); }
    100% { transform: translate(0); }
}

.hero-subtitle {
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--cyan);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.hero-desc {
    color: var(--text-dim);
    max-width: 480px;
    margin-bottom: 2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 2rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--cyan), var(--purple));
    color: #000;
    font-weight: 600;
    border: none;
}

.btn-primary:hover {
    box-shadow: var(--glow-cyan), var(--glow-purple);
    transform: translateY(-2px);
    color: #000;
}

.btn-outline {
    background: transparent;
    border-color: var(--border);
    color: var(--text);
}

.btn-outline:hover {
    border-color: var(--cyan);
    color: var(--cyan);
    box-shadow: var(--glow-cyan);
}

.btn-full { width: 100%; }

.hero-stats {
    display: flex;
    gap: 3rem;
}

.stat-num {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: #fff;
    line-height: 1;
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Phone mockup */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    width: 260px;
    height: 520px;
    border: 2px solid var(--border);
    border-radius: 36px;
    padding: 12px;
    background: var(--bg-panel);
    box-shadow: var(--glow-cyan), inset 0 0 60px rgba(0, 240, 255, 0.05);
    position: relative;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 18px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 6px;
    background: var(--border);
    border-radius: 3px;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--bg-deep);
    border-radius: 26px;
    overflow: hidden;
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    padding: 48px 20px 20px;
    align-content: start;
}

.phone-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 240, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.05) 1px, transparent 1px);
    background-size: 20px 20px;
}

.phone-icon {
    position: relative;
    z-index: 1;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    animation: float-icon 3s ease-in-out infinite;
    animation-delay: calc(var(--i) * 0.4s);
}

@keyframes float-icon {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* About */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.about-text p {
    margin-bottom: 1rem;
    color: var(--text-dim);
}

.about-text strong {
    color: var(--cyan);
}

.about-cards {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.info-card {
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 3px solid var(--cyan);
    transition: var(--transition);
}

.info-card:hover {
    border-left-color: var(--purple);
    box-shadow: var(--glow-purple);
    transform: translateX(4px);
}

.card-icon {
    font-size: 1.2rem;
    color: var(--cyan);
    display: block;
    margin-bottom: 0.5rem;
}

.info-card h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    color: #fff;
    margin-bottom: 0.25rem;
}

.info-card p {
    font-size: 0.9rem;
    color: var(--text-dim);
}

/* Projects */
.project-filters {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-btn {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.5rem 1.2rem;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-dim);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    border-color: var(--cyan);
    color: var(--cyan);
    box-shadow: var(--glow-cyan);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.project-card {
    position: relative;
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: var(--transition);
}

.project-card.hidden { display: none; }

.card-glow {
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, var(--accent, var(--cyan)) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition);
}

.project-card:hover {
    border-color: var(--accent, var(--cyan));
    transform: translateY(-4px);
}

.project-card:hover .card-glow { opacity: 0.08; }

.card-type {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent, var(--cyan));
}

.project-card h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    color: #fff;
    margin: 0.75rem 0 0.5rem;
}

.project-card p {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 1rem;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    padding: 0.2rem 0.6rem;
    border: 1px solid var(--border);
    color: var(--text-dim);
}

.card-index {
    position: absolute;
    bottom: 1rem;
    right: 1.5rem;
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.03);
    line-height: 1;
}

/* Skills */
.skills-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.skill-row { margin-bottom: 1.2rem; }

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

.skill-pct { color: var(--cyan); }

.skill-track {
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
}

.skill-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--cyan), var(--purple));
    border-radius: 2px;
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--glow-cyan);
}

.tech-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.tech-chip {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-dim);
    transition: var(--transition);
}

.tech-chip:hover {
    border-color: var(--purple);
    color: var(--purple);
    box-shadow: var(--glow-purple);
}

/* Contact */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info p {
    color: var(--text-dim);
    margin-bottom: 1rem;
}

.contact-email {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.terminal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.terminal-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 0.6rem 1rem;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border);
}

.terminal-bar span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border);
}

.terminal-bar span:nth-child(1) { background: #ff5f57; }
.terminal-bar span:nth-child(2) { background: #febc2e; }
.terminal-bar span:nth-child(3) { background: #28c840; }

.terminal-bar code {
    margin-left: auto;
    color: var(--text-dim);
    font-size: 0.7rem;
}

.terminal-body { padding: 1rem; }

.prompt { color: var(--cyan); }
.output { color: var(--text-dim); margin: 0.2rem 0 0.8rem 1rem; }

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

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.form-group label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--cyan);
    box-shadow: var(--glow-cyan);
}

.form-status {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-align: center;
}

.form-status.success { color: var(--green); }
.form-status.error { color: var(--pink); }

/* Footer */
.site-footer {
    position: relative;
    z-index: 2;
    border-top: 1px solid var(--border);
    padding: 3rem 2rem;
    background: var(--bg-panel);
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.logo-small {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: 1.2rem;
    color: var(--cyan);
    letter-spacing: 0.2em;
}

.footer-brand p {
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-top: 0.25rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.social-link {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.social-link:hover { color: var(--cyan); }

.copyright {
    width: 100%;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-dim);
    margin-top: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

/* Reveal animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Responsive */
@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: calc(var(--header-h) + 1rem);
    }

    .hero-desc { margin-inline: auto; }
    .hero-actions { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-visual { order: -1; }

    .phone-mockup {
        width: 200px;
        height: 400px;
    }

    .about-grid,
    .skills-layout,
    .contact-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .nav {
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(5, 8, 16, 0.97);
        padding: 1.5rem 2rem;
        gap: 1rem;
        border-bottom: 1px solid var(--border);
        transform: translateY(-120%);
        opacity: 0;
        transition: var(--transition);
        pointer-events: none;
    }

    .nav.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-toggle { display: flex; }

    .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);
    }

    .section { padding: 4rem 1.25rem; }
    .hero-stats { gap: 1.5rem; }
    .stat-num { font-size: 2rem; }
}