/* ============================================
   CYBERPUNK × MATRIX × SCI-FI DESIGN SYSTEM
   Rikky Khurniawan Portfolio
   ============================================ */

/* ===== GOOGLE FONTS ===== */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;700;900&family=Share+Tech+Mono&family=VT323&display=swap');

/* ===== CSS VARIABLES ===== */
:root {
    /* Primary Colors */
    --cyber-green:        #00ff88;
    --cyber-green-dim:    #00cc6a;
    --cyber-green-dark:   #004422;
    --cyber-yellow:       #e8d44d;
    --cyber-yellow-dim:   #b8a830;
    --cyber-yellow-glow:  rgba(232, 212, 77, 0.6);
    --cyber-white:        #d4f5e9;
    --cyber-cyan:         #00ccff;
    --cyber-cyan-dim:     #007799;

    /* Backgrounds */
    --bg-base:      #030a07;
    --bg-2:         #060f0a;
    --bg-3:         #0a1810;
    --bg-card:      rgba(0, 15, 8, 0.75);
    --bg-nav:       rgba(3, 10, 7, 0.95);

    /* Text */
    --text-primary:    #00ff88;
    --text-secondary:  #a0ffcc;
    --text-muted:      #4d9970;
    --text-white:      #d4f5e9;
    --text-yellow:     #e8d44d;

    /* Glows */
    --glow-green:  0 0 8px #00ff88, 0 0 20px rgba(0,255,136,0.4), 0 0 40px rgba(0,255,136,0.15);
    --glow-yellow: 0 0 8px #e8d44d, 0 0 20px rgba(232,212,77,0.4), 0 0 40px rgba(232,212,77,0.15);
    --glow-cyan:   0 0 8px #00ccff, 0 0 20px rgba(0,204,255,0.4);

    /* Borders */
    --border-green:  1px solid rgba(0,255,136,0.5);
    --border-yellow: 1px solid rgba(232,212,77,0.5);
    --border-dim:    1px solid rgba(0,255,136,0.15);

    /* Spacing */
    --sp-xs:  0.5rem;
    --sp-sm:  1rem;
    --sp-md:  1.5rem;
    --sp-lg:  2rem;
    --sp-xl:  3rem;
    --sp-2xl: 4rem;

    --radius: 4px;
    --speed:  0.3s;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Share Tech Mono', 'VT323', monospace;
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    letter-spacing: 0.5px;
    min-height: 100vh;
}

/* ===== TYPOGRAPHY ===== */
.font-orbitron { font-family: 'Orbitron', sans-serif; }
.font-mono     { font-family: 'Share Tech Mono', monospace; }
.font-vt323    { font-family: 'VT323', monospace; }

h1, h2, h3, h4, h5, h6 {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    letter-spacing: 2px;
    line-height: 1.2;
}

h1 { font-size: clamp(2.2rem, 6vw, 4.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
h3 { font-size: clamp(1.2rem, 3vw, 2rem); }

p {
    font-size: clamp(0.95rem, 1.8vw, 1.1rem);
    line-height: 1.9;
    color: var(--text-secondary);
}

/* ===== MATRIX CANVAS ===== */
#matrix-canvas {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 0;
    opacity: 0.55;
}

/* ===== OVERLAYS ===== */
.scanlines {
    position: fixed;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background: repeating-linear-gradient(
        0deg,
        rgba(0,0,0,0.08),
        rgba(0,0,0,0.08) 1px,
        transparent 1px,
        transparent 3px
    );
}

.vignette {
    position: fixed;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background: radial-gradient(ellipse at center, transparent 50%, rgba(0,0,0,0.85) 100%);
}

/* Hex grid overlay */
.hex-overlay {
    position: fixed;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    opacity: 0.03;
    background-image:
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='52' viewBox='0 0 60 52'%3E%3Cpolygon points='30,2 58,17 58,45 30,50 2,45 2,17' fill='none' stroke='%2300ff88' stroke-width='1'/%3E%3C/svg%3E");
    background-size: 60px 52px;
}

/* ===== NAVIGATION ===== */
.nav-container {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: var(--bg-nav);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,255,136,0.25);
    box-shadow: 0 1px 30px rgba(0,255,136,0.08), inset 0 -1px 0 rgba(0,255,136,0.1);
}

.nav-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0.85rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo */
.nav-logo {
    font-family: 'Orbitron', sans-serif;
    font-weight: 900;
    font-size: 1.4rem;
    color: var(--cyber-green);
    text-decoration: none;
    letter-spacing: 4px;
    text-shadow: var(--glow-green);
    position: relative;
    transition: all var(--speed);
}

.nav-logo::before {
    content: '[';
    color: var(--cyber-yellow);
    margin-right: 2px;
}
.nav-logo::after {
    content: ']';
    color: var(--cyber-yellow);
    margin-left: 2px;
}

.nav-logo:hover {
    text-shadow: var(--glow-green), 0 0 60px rgba(0,255,136,0.4);
    transform: scale(1.05);
}

/* Nav Links */
.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
    align-items: center;
}

.nav-link {
    font-family: 'Orbitron', sans-serif;
    font-weight: 500;
    font-size: 0.75rem;
    letter-spacing: 3px;
    color: var(--text-secondary);
    text-decoration: none;
    position: relative;
    padding: 0.4rem 0;
    transition: all var(--speed);
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 1px;
    background: linear-gradient(90deg, var(--cyber-green), var(--cyber-yellow));
    box-shadow: 0 0 8px var(--cyber-green);
    transition: width var(--speed);
}

.nav-link:hover,
.nav-link.active {
    color: var(--cyber-green);
    text-shadow: 0 0 10px rgba(0,255,136,0.7);
}

.nav-link:hover::before,
.nav-link.active::before {
    width: 100%;
}

.nav-link.active {
    color: var(--cyber-yellow);
    text-shadow: var(--glow-yellow);
}

/* Nav status dot */
.nav-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 2px;
}
.nav-status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--cyber-green);
    box-shadow: 0 0 6px var(--cyber-green);
    animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 6px var(--cyber-green); }
    50%       { opacity: 0.4; box-shadow: 0 0 2px var(--cyber-green); }
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--cyber-green);
    color: var(--cyber-green);
    font-family: 'Orbitron', sans-serif;
    font-size: 0.75rem;
    letter-spacing: 2px;
    cursor: pointer;
    padding: 0.5rem 1rem;
    transition: all var(--speed);
    clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
}
.nav-toggle:hover {
    background: rgba(0,255,136,0.1);
    box-shadow: var(--glow-green);
}

@media (max-width: 768px) {
    .nav-toggle { display: block; }
    .nav-status  { display: none; }

    .nav-links {
        position: absolute;
        top: 100%; left: 0; right: 0;
        flex-direction: column;
        background: var(--bg-nav);
        padding: 1.5rem 2rem;
        gap: 1.2rem;
        transform: translateY(-110%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--speed);
        border-bottom: var(--border-green);
        border-top: 1px solid rgba(0,255,136,0.1);
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
}

/* ===== BUTTONS ===== */
.cyber-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: transparent;
    border: 1px solid var(--cyber-green);
    color: var(--cyber-green);
    padding: 0.75rem 1.8rem;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 3px;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    clip-path: polygon(12px 0%, 100% 0%, calc(100% - 12px) 100%, 0% 100%);
    transition: all var(--speed);
    overflow: hidden;
}

.cyber-btn::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0,255,136,0.15), transparent);
    transition: left 0.6s ease;
}
.cyber-btn:hover::before { left: 100%; }

.cyber-btn:hover {
    background: rgba(0,255,136,0.08);
    box-shadow: var(--glow-green);
    color: #fff;
    transform: translateY(-2px);
}

.cyber-btn-yellow {
    border-color: var(--cyber-yellow);
    color: var(--cyber-yellow);
}
.cyber-btn-yellow::before {
    background: linear-gradient(90deg, transparent, rgba(232,212,77,0.15), transparent);
}
.cyber-btn-yellow:hover {
    background: rgba(232,212,77,0.08);
    box-shadow: var(--glow-yellow);
    color: #fff;
}

.cyber-btn-filled {
    background: rgba(0,255,136,0.1);
    border-color: var(--cyber-green);
}

/* ===== CARDS ===== */
.cyber-card {
    background: var(--bg-card);
    border: var(--border-dim);
    border-radius: var(--radius);
    padding: var(--sp-lg);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(8px);
    transition: all var(--speed);
}

/* Corner decorators */
.cyber-card::before,
.cyber-card::after {
    content: '';
    position: absolute;
    width: 12px; height: 12px;
    border-color: var(--cyber-green);
    border-style: solid;
}
.cyber-card::before {
    top: -1px; left: -1px;
    border-width: 2px 0 0 2px;
}
.cyber-card::after {
    bottom: -1px; right: -1px;
    border-width: 0 2px 2px 0;
}

.cyber-card:hover {
    border-color: rgba(0,255,136,0.4);
    box-shadow: 0 0 25px rgba(0,255,136,0.12), inset 0 0 30px rgba(0,255,136,0.03);
    transform: translateY(-4px);
}

/* ===== SECTION CONTAINERS ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    position: relative;
    z-index: 10;
    padding: var(--sp-2xl) 0;
}

/* Section label */
.section-label {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.65rem;
    letter-spacing: 5px;
    color: var(--cyber-yellow);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    text-shadow: var(--glow-yellow);
}

.section-title {
    font-family: 'Orbitron', sans-serif;
    color: var(--cyber-white);
    margin-bottom: var(--sp-xl);
    position: relative;
}

.section-title span {
    color: var(--cyber-green);
    text-shadow: var(--glow-green);
}

/* ===== DIVIDERS ===== */
.cyber-divider {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: var(--sp-xl) 0;
}
.cyber-divider::before,
.cyber-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--cyber-green) 50%, transparent);
    opacity: 0.3;
}
.cyber-divider-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.6rem;
    letter-spacing: 4px;
    color: var(--text-muted);
}

/* ===== GRIDS ===== */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to   { opacity: 1; transform: translateX(0); }
}
@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(30px); }
    to   { opacity: 1; transform: translateX(0); }
}
@keyframes glowPulse {
    0%, 100% { text-shadow: var(--glow-green); }
    50%       { text-shadow: 0 0 20px #00ff88, 0 0 50px rgba(0,255,136,0.6), 0 0 80px rgba(0,255,136,0.3); }
}
@keyframes scanLine {
    0%   { top: -10%; }
    100% { top: 110%; }
}
@keyframes borderGlow {
    0%, 100% { box-shadow: 0 0 5px rgba(0,255,136,0.2); }
    50%       { box-shadow: 0 0 20px rgba(0,255,136,0.5); }
}
@keyframes glitch {
    0%, 94%, 100% { transform: translateX(0) skewX(0); opacity: 1; }
    95%            { transform: translateX(-4px) skewX(-1deg); opacity: 0.9; }
    97%            { transform: translateX(4px) skewX(1deg); opacity: 0.9; }
    98%            { transform: translateX(-2px); }
    99%            { transform: translateX(2px) skewX(0.5deg); }
}
@keyframes typewriter {
    from { width: 0; }
    to   { width: 100%; }
}
@keyframes blink {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0; }
}
@keyframes rotate-slow {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}
@keyframes flicker {
    0%, 97%, 100% { opacity: 1; }
    98%            { opacity: 0.4; }
    99%            { opacity: 0.8; }
}

/* ===== SCROLL REVEAL ===== */
.reveal {
    opacity: 0;
    transform: translateY(25px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}
.reveal-left {
    opacity: 0;
    transform: translateX(-25px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}
.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

/* ===== FOOTER ===== */
.footer {
    position: relative;
    z-index: 10;
    background: rgba(0,0,0,0.92);
    border-top: 1px solid rgba(0,255,136,0.2);
    padding: var(--sp-xl) 0 var(--sp-lg);
    margin-top: var(--sp-xl);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.footer-logo {
    font-family: 'Orbitron', sans-serif;
    font-weight: 900;
    font-size: 1rem;
    color: var(--cyber-green);
    letter-spacing: 6px;
    text-shadow: var(--glow-green);
    margin-bottom: var(--sp-md);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: var(--sp-md);
    flex-wrap: wrap;
}

.social-link {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.65rem;
    letter-spacing: 3px;
    color: var(--text-muted);
    text-decoration: none;
    transition: all var(--speed);
    padding: 0.3rem 0;
    position: relative;
}
.social-link::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 1px;
    background: var(--cyber-yellow);
    transition: width var(--speed);
}
.social-link:hover {
    color: var(--cyber-yellow);
    text-shadow: var(--glow-yellow);
}
.social-link:hover::after { width: 100%; }

.footer-text {
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 2px;
}
.footer-text span { color: var(--cyber-green); }

/* ===== UTILITIES ===== */
.text-center  { text-align: center; }
.text-green   { color: var(--cyber-green); }
.text-yellow  { color: var(--cyber-yellow); }
.text-white   { color: var(--cyber-white); }
.text-muted   { color: var(--text-muted); }
.glow-green   { text-shadow: var(--glow-green); }
.glow-yellow  { text-shadow: var(--glow-yellow); }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .container { padding: 0 1.2rem; }
    .section   { padding: var(--sp-xl) 0; }
    h1 { font-size: 1.8rem; }
    h2 { font-size: 1.5rem; }
}
@media (max-width: 480px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}