/* Custom Pixel Font Declaration */
@font-face {
    font-family: 'DeltarunePixel';
    src: url('Field%20of%20Hopes%20and%20Dreams.ttf') format('truetype');
}

/* Sleek, Clean Matrix Theme */
:root {
    --bg-black: #050806;
    --card-bg: rgba(7, 15, 9, 0.6);
    --matrix-green: #00ff41;
    --matrix-dark: #0f331a;
    --matrix-glow: rgba(0, 255, 65, 0.2);
    --text-main: #f0fdf4;
    --text-dim: #6bc484;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background-color: var(--bg-black);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Deltarune Music Toast Notification */
.music-toast {
    position: fixed;
    top: 140px; 
    right: 40px; 
    z-index: 99;
    font-family: 'DeltarunePixel', monospace, sans-serif;
    font-size: 2rem; 
    font-weight: normal; 
    color: #ffffff;
    text-shadow: 3px 3px 0px #000000;
    display: flex;
    align-items: center;
    gap: 12px;
    opacity: 0;
    transform: translateX(50px); 
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
    pointer-events: none;
}

.music-toast.show {
    opacity: 1;
    transform: translateX(0); 
}

.music-toast .note-icon {
    font-size: 2.2rem; 
}

/* Subtle Geometric Grid Background */
.cyber-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: 
        linear-gradient(rgba(0, 255, 65, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 65, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: -1;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 8%;
    background: rgba(5, 8, 6, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--matrix-dark);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 10;
}

.logo {
    font-family: "Courier New", Courier, monospace;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 3px;
    color: var(--text-main);
}

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

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

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

nav a {
    font-family: "Courier New", Courier, monospace;
    color: var(--text-dim);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.3s ease;
}

nav a:hover, nav a.active {
    color: var(--matrix-green);
}

/* Page Views */
.page-view {
    display: none;
    min-height: 100vh;
    padding-top: 120px;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.page-view.active {
    display: block;
    opacity: 1;
}

/* Home Section */
#home-page {
    display: none;
    align-items: center;
    justify-content: center;
    height: 100vh;
    padding-top: 0; 
}

#home-page.active {
    display: flex;
}

.hero {
    display: flex;
    flex-direction: column;
    align-items: center; 
    text-align: center;
    max-width: 600px;
    padding: 0 20px;
}

.system-tag {
    font-family: "Courier New", Courier, monospace;
    color: var(--matrix-green);
    font-size: 0.9rem;
    letter-spacing: 2px;
    margin-bottom: 16px;
    min-height: 20px;
}

.hero h1 {
    font-size: 4.5rem;
    font-weight: 900;
    letter-spacing: 6px;
    margin-bottom: 12px;
    color: var(--text-main);
    animation: pulse-glow 2.5s infinite alternate ease-in-out;
}

@keyframes pulse-glow {
    0% {
        text-shadow: 0 0 5px rgba(0, 255, 65, 0.05);
    }
    100% {
        text-shadow: 0 0 15px rgba(0, 255, 65, 0.4), 0 0 30px rgba(0, 255, 65, 0.2);
    }
}

/* Mottos Cycle Styling */
.subtitle {
    color: var(--text-dim);
    font-size: 1.1rem;
    margin-bottom: 48px;
    font-weight: 300;
    letter-spacing: 1px;
    transition: opacity 1s ease-in-out; 
}

.subtitle.fade-out {
    opacity: 0;
}

/* Sleek Minimalist Button */
.portal-btn {
    background: transparent;
    color: var(--matrix-green);
    border: 1px solid var(--matrix-green);
    padding: 16px 40px;
    font-family: "Courier New", Courier, monospace;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 2px;
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.portal-btn:hover {
    background: var(--matrix-green);
    color: var(--bg-black);
    box-shadow: 0 0 20px var(--matrix-glow);
}

/* Games & About Sections */
#games-page, #about-page {
    padding: 120px 10% 80px;
}

.section-title {
    font-family: "Courier New", Courier, monospace;
    font-size: 1.5rem;
    letter-spacing: 2px;
    margin-bottom: 40px;
    color: var(--matrix-green);
    border-bottom: 1px solid var(--matrix-dark);
    padding-bottom: 16px;
}

/* Clean Games Grid */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 32px;
}

.game-card {
    display: block; 
    text-decoration: none; 
    background: var(--card-bg);
    border: 1px solid var(--matrix-dark);
    border-radius: 4px;
    overflow: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(4px);
    cursor: pointer;
}

.game-card:hover {
    transform: translateY(-4px);
    border-color: var(--matrix-green);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.card-thumb {
    width: 100%;
    height: 160px;
    background: #0a140d;
    border-bottom: 1px solid var(--matrix-dark);
    overflow: hidden;
}

.card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease; 
}

.game-card:hover .card-thumb img {
    transform: scale(1.05); 
}

.card-content {
    padding: 24px;
}

.game-card h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--text-main);
    font-weight: 600;
}

.game-card p {
    color: var(--text-dim);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 24px;
}

.play-btn {
    width: 100%;
    padding: 12px;
    background: transparent;
    border: 1px solid var(--matrix-dark);
    color: var(--text-main);
    font-family: "Courier New", Courier, monospace;
    font-size: 0.85rem;
    font-weight: bold;
    letter-spacing: 1px;
    border-radius: 2px;
    text-align: center; 
    display: block; 
    transition: all 0.2s ease;
}

.game-card:hover .play-btn {
    border-color: var(--matrix-green);
    color: var(--matrix-green);
}

/* About Terminal Box */
.about-terminal {
    background: var(--card-bg);
    border: 1px solid var(--matrix-dark);
    border-radius: 4px;
    overflow: hidden;
    max-width: 800px;
}

.terminal-header {
    background: rgba(0, 0, 0, 0.5);
    padding: 12px 16px;
    border-bottom: 1px solid var(--matrix-dark);
    display: flex;
    gap: 8px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--matrix-dark);
}

.terminal-body {
    padding: 32px;
}

.about-text {
    font-family: "Courier New", Courier, monospace;
    color: var(--text-dim);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 8px;
}

/* System Audio Control Widget */
.audio-control {
    position: fixed;
    bottom: 24px;
    right: 32px;
    background: rgba(5, 8, 6, 0.85);
    border: 1px solid var(--matrix-dark);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    backdrop-filter: blur(8px);
    z-index: 100;
    border-radius: 4px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
    transition: border-color 0.3s ease;
}

.audio-control:hover {
    border-color: var(--matrix-green);
}

#audio-status {
    font-family: "Courier New", Courier, monospace;
    color: var(--text-dim);
    font-size: 0.85rem;
    letter-spacing: 1px;
}

#mute-btn {
    background: transparent;
    border: none;
    color: var(--matrix-green);
    font-family: "Courier New", Courier, monospace;
    font-size: 0.9rem;
    font-weight: bold;
    letter-spacing: 1px;
    cursor: pointer;
    transition: color 0.2s ease, text-shadow 0.2s ease;
}

#mute-btn:hover {
    color: var(--text-main);
    text-shadow: 0 0 10px var(--matrix-glow);
}

/* Cybernetic Laser Sweep Transition Animation */
@keyframes cyberSweep {
    0% {
        transform: translateY(-100%);
    }
    50% {
        transform: translateY(0%);
    }
    100% {
        transform: translateY(100%);
    }
}

#transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(4, 7, 5, 0.96);
    border-bottom: 3px solid var(--matrix-green);
    box-shadow: 0 15px 40px rgba(0, 255, 65, 0.25);
    z-index: 9999;
    pointer-events: none;
    transform: translateY(-100%);
}

#transition-overlay.active {
    animation: cyberSweep 0.65s cubic-bezier(0.77, 0, 0.175, 1) forwards;
}