/* 
 * HIDDEN LAYER - Underground Digital Art Magazine
 * styles.css - Main stylesheet
 * A monochrome, glitchy aesthetic inspired by Serial Experiments Lain
 */

:root {
    /* Main color palette */
    --color-black: #000000;
    --color-dark-gray: #111111;
    --color-mid-gray: #333333;
    --color-light-gray: #aaaaaa;
    --color-white: #ffffff;
    
    /* Accent colors - used sparingly for highlights/glows */
    --color-glow: #ffffff;
    --color-accent: #eeeeee;
    
    /* Font families */
    --font-pixel: 'VT323', monospace;
    --font-mono: 'Syne Mono', monospace;
    --font-body: 'Space Mono', monospace;
    
    /* Spacing variables */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;
    
    /* Transition speeds */
    --transition-fast: 0.2s;
    --transition-medium: 0.4s;
    --transition-slow: 0.8s;
    
    /* Z-index layers */
    --z-background: -10;
    --z-content: 1;
    --z-overlay: 10;
    --z-modal: 50;
    --z-nav: 100;
    --z-cursor: 1000;
}

/* ---------- RESET & BASE STYLES ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    width: 100%;
    min-height: 100vh;
    font-family: var(--font-body);
    font-size: 16px;
    color: var(--color-white);
    background-color: var(--color-black);
    overflow-x: hidden;
}

body {
    cursor: none; /* Hide default cursor */
    position: relative;
}

a {
    color: var(--color-white);
    text-decoration: none;
    transition: all var(--transition-fast) ease;
}

a:hover {
    color: var(--color-glow);
    text-shadow: 0 0 5px var(--color-glow);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-mono);
    font-weight: 400;
    letter-spacing: 0.05em;
}

/* ---------- UTILITY CLASSES ---------- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.glitch-text {
    position: relative;
    display: inline-block;
    animation: textFlicker 0.8s infinite alternate;
}

.glitch-text::before,
.glitch-text::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.8;
}

.glitch-text::before {
    left: 2px;
    text-shadow: -1px 0 var(--color-glow);
    clip: rect(24px, 550px, 90px, 0);
    animation: glitchText 3s infinite linear alternate-reverse;
}

.glitch-text::after {
    left: -2px;
    text-shadow: -1px 0 var(--color-white);
    clip: rect(85px, 550px, 140px, 0);
    animation: glitchText 2s infinite linear alternate-reverse;
}

/* ---------- SPECIAL EFFECTS ---------- */
/* Custom cursor */
#cursor {
    width: 20px;
    height: 20px;
    border: 1px solid var(--color-white);
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    transition: width 0.2s, height 0.2s;
    mix-blend-mode: difference;
    z-index: var(--z-cursor);
}

#cursor.hover {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
}

/* CRT Overlay effect */
.crt-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.15) 50%);
    background-size: 100% 4px;
    z-index: var(--z-overlay);
    pointer-events: none;
    opacity: 0.15;
}

/* Scanline effect */
.scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, 0.15),
        rgba(0, 0, 0, 0.15) 1px,
        transparent 1px,
        transparent 2px
    );
    pointer-events: none;
    z-index: var(--z-overlay);
}

/* Floating particles */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: var(--z-background);
    pointer-events: none;
}

.particle {
    position: absolute;
    background-color: var(--color-white);
    width: 2px;
    height: 2px;
    opacity: 0.5;
    pointer-events: none;
}

/* ---------- NAVIGATION ---------- */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-nav);
    padding: var(--spacing-md) 0;
    transition: background var(--transition-medium) ease;
}

.nav-blur {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    backdrop-filter: blur(5px);
    opacity: 0;
    transition: opacity var(--transition-medium) ease;
    z-index: -1;
}

.main-nav.scrolled .nav-blur {
    opacity: 1;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-lg);
}

.nav-brand {
    font-family: var(--font-pixel);
    font-size: 1.5rem;
    letter-spacing: 0.1em;
    animation: textFlicker 2s infinite alternate;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-links a {
    position: relative;
    padding: var(--spacing-xs) 0;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.9rem;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-white);
    transition: width var(--transition-medium) ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    cursor: pointer;
}

.hamburger span {
    width: 100%;
    height: 2px;
    background-color: var(--color-white);
    transition: transform var(--transition-fast) ease;
}

/* Mobile Navigation */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: var(--z-modal);
    transition: right var(--transition-medium) ease;
}

.mobile-nav.open {
    right: 0;
}

.mobile-nav-container {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-lg);
}

.mobile-nav ul {
    list-style: none;
    text-align: center;
}

.mobile-nav li {
    margin: var(--spacing-md) 0;
}

.mobile-nav a {
    font-size: 1.5rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* ---------- HERO SECTION ---------- */
.hero {
    position: relative;
    height: 100vh;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

#three-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-background);
}

.hero-content {
    position: relative;
    z-index: var(--z-content);
    text-align: center;
    padding: var(--spacing-lg);
    max-width: 800px;
}

.hero h1 {
    font-size: 5rem;
    font-family: var(--font-mono);
    letter-spacing: 0.2em;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
}

.hero .subtitle {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.7;
    letter-spacing: 0.05em;
}

.btn-primary {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 1px solid var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.9rem;
    transition: all var(--transition-fast) ease;
    background-color: transparent;
}

.btn-primary:hover {
    background-color: var(--color-white);
    color: var(--color-black);
    box-shadow: 0 0 20px var(--color-glow);
    text-shadow: none;
}

/* ---------- FEATURES SECTION ---------- */
.features {
    padding: var(--spacing-xl) var(--spacing-lg);
    position: relative;
    z-index: var(--z-content);
}

.section-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    position: relative;
    background-color: var(--color-dark-gray);
    overflow: hidden;
    transition: transform var(--transition-medium) ease;
}

.feature-card:hover {
    transform: translateY(-5px) scale(1.02);
}

.feature-image {
    position: relative;
    overflow: hidden;
}

.feature-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: all var(--transition-medium) ease;
    filter: grayscale(100%);
}

.feature-card:hover .feature-image img {
    transform: scale(1.05);
    filter: grayscale(70%);
}

.feature-content {
    padding: var(--spacing-md);
}

.feature-content h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem;
}

.feature-summary {
    height: 0;
    overflow: hidden;
    opacity: 0;
    transition: height var(--transition-medium) ease, opacity var(--transition-medium) ease;
}

.feature-card:hover .feature-summary {
    height: auto;
    opacity: 1;
}

.feature-summary p {
    font-size: 0.85rem;
    line-height: 1.4;
    opacity: 0.8;
}

/* ---------- SIDEBAR ---------- */
.sidebar {
    position: fixed;
    top: 0;
    right: 0;
    width: 300px;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    border-left: 1px solid var(--color-mid-gray);
    z-index: var(--z-content);
    transform: translateX(280px);
    transition: transform var(--transition-medium) ease;
}

.sidebar:hover {
    transform: translateX(0);
}

.sidebar::before {
    content: '>';
    position: absolute;
    top: 50%;
    left: 10px;
    transform: translateY(-50%) rotate(180deg);
    font-family: var(--font-mono);
    opacity: 0.8;
    transition: opacity var(--transition-medium) ease;
}

.sidebar:hover::before {
    opacity: 0;
}

.sidebar-content {
    padding: var(--spacing-lg);
    height: 100%;
    overflow-y: auto;
}

.sidebar-title {
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 1.2rem;
    text-align: center;
}

.transmissions-scrollbox {
    height: calc(100% - 60px);
    overflow-y: auto;
}

.transmission-item {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-mid-gray);
    position: relative;
    cursor: pointer;
}

.transmission-date {
    font-size: 0.8rem;
    opacity: 0.6;
    font-family: var(--font-pixel);
}

.transmission-item h4 {
    font-size: 1rem;
    margin-top: var(--spacing-xs);
}

.transmission-item::before {
    content: attr(data-preview);
    position: absolute;
    left: -250px;
    top: 0;
    width: 230px;
    background-color: var(--color-dark-gray);
    border: 1px solid var(--color-mid-gray);
    padding: var(--spacing-sm);
    font-size: 0.8rem;
    opacity: 0;
    transition: opacity var(--transition-fast) ease;
    pointer-events: none;
    z-index: var(--z-modal);
}

.transmission-item:hover::before {
    opacity: 1;
}

/* ---------- AUDIO PLAYER ---------- */
.audio-player {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-dark-gray);
    border-top: 1px solid var(--color-mid-gray);
    padding: var(--spacing-sm) var(--spacing-lg);
    z-index: var(--z-overlay);
    transform: translateY(100%);
    transition: transform var(--transition-medium) ease;
}

.audio-player:hover {
    transform: translateY(0);
}

.player-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.play-button {
    width: 30px;
    height: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: none;
    border: 1px solid var(--color-white);
    color: var(--color-white);
    cursor: pointer;
    transition: all var(--transition-fast) ease;
}

.play-button:hover {
    background-color: var(--color-white);
    color: var(--color-black);
}

.play-button .pause-icon {
    display: none;
}

.play-button.playing .play-icon {
    display: none;
}

.play-button.playing .pause-icon {
    display: block;
}

.track-info {
    display: flex;
    flex-direction: column;
    min-width: 200px;
}

.track-title {
    font-size: 0.9rem;
    font-weight: bold;
}

.track-artist {
    font-size: 0.8rem;
    opacity: 0.7;
}

.progress-container {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.progress-bar {
    height: 4px;
    background-color: var(--color-mid-gray);
    flex: 1;
    position: relative;
}

.progress-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 30%;
    background-color: var(--color-white);
}

.time-display {
    font-size: 0.8rem;
    font-family: var(--font-pixel);
    min-width: 80px;
    text-align: right;
}

.volume-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.volume-slider {
    width: 80px;
    height: 4px;
    background-color: var(--color-mid-gray);
    position: relative;
}

.volume-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 70%;
    background-color: var(--color-white);
}

/* ---------- DATETIME WIDGET ---------- */
.datetime-widget {
    position: fixed;
    top: var(--spacing-lg);
    left: var(--spacing-lg);
    font-family: var(--font-pixel);
    z-index: var(--z-overlay);
    display: flex;
    flex-direction: column;
    opacity: 0.8;
}

.date-display, .time-display {
    background-color: rgba(0, 0, 0, 0.5);
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--color-mid-gray);
    font-size: 0.9rem;
}

.time-display {
    border-top: none;
    animation: textFlicker 2s infinite alternate;
}

/* ---------- TERMINAL WIDGET ---------- */
.terminal-widget {
    position: fixed;
    bottom: var(--spacing-lg);
    left: var(--spacing-lg);
    width: 300px;
    height: 150px;
    background-color: var(--color-dark-gray);
    border: 1px solid var(--color-mid-gray);
    z-index: var(--z-overlay);
    overflow: hidden;
    opacity: 0.8;
    transition: opacity var(--transition-fast) ease;
}

.terminal-widget:hover {
    opacity: 1;
}

.terminal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-mid-gray);
    user-select: none;
}

.terminal-title {
    font-family: var(--font-pixel);
    font-size: 0.8rem;
}

.terminal-close {
    cursor: pointer;
    font-size: 1.2rem;
    line-height: 1;
}

.terminal-content {
    height: calc(100% - 25px);
    padding: var(--spacing-xs);
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 0.7rem;
}

.terminal-line {
    margin-bottom: var(--spacing-xs);
    overflow: hidden;
    white-space: nowrap;
    animation: typewriter 1s steps(40, end);
}

/* ---------- ANIMATIONS ---------- */
@keyframes textFlicker {
    0% { opacity: 1; }
    5% { opacity: 0.9; }
    10% { opacity: 1; }
    15% { opacity: 0.9; }
    20% { opacity: 1; }
    55% { opacity: 1; }
    60% { opacity: 0.9; }
    65% { opacity: 1; }
    75% { opacity: 1; }
    80% { opacity: 0.9; }
    85% { opacity: 1; }
    100% { opacity: 1; }
}

@keyframes glitchText {
    0% { clip: rect(23px, 9999px, 52px, 0); }
    25% { clip: rect(90px, 9999px, 126px, 0); }
    50% { clip: rect(74px, 9999px, 28px, 0); }
    75% { clip: rect(46px, 9999px, 63px, 0); }
    100% { clip: rect(62px, 9999px, 99px, 0); }
}

@keyframes typewriter {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Element with data-aos="fade-up" will animate in on scroll */
[data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-medium) ease, transform var(--transition-medium) ease;
}

[data-aos="fade-up"].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- RESPONSIVE STYLES ---------- */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero h1 {
        font-size: 3.5rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.open span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }
    
    .hamburger.open span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.open span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }
    
    .sidebar {
        display: none;
    }
    
    .player-controls {
        flex-wrap: wrap;
    }
    
    .progress-container {
        width: 100%;
        order: 3;
        margin-top: var(--spacing-sm);
    }
}

@media (max-width: 640px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero .subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .terminal-widget, .datetime-widget {
        display: none;
    }
}