@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;600;800&family=JetBrains+Mono:wght@400;700&display=swap');

:root {
    --bg-dark: #020205;
    --bg-card: rgba(15, 15, 25, 0.7);
    --accent: #00f2ff;
    --accent-alt: #7000ff;
    --text-main: #f0f0f5;
    --text-muted: #a0a0b0;
    --error: #ff003c;
    --glass-border: rgba(0, 242, 255, 0.2);
    --glow: 0 0 20px rgba(0, 242, 255, 0.3);
    --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(circle at 50% -20%, rgba(112, 0, 255, 0.15), transparent 50%),
        radial-gradient(circle at 0% 100%, rgba(0, 242, 255, 0.05), transparent 40%);
    color: var(--text-main);
    font-family: 'Plus Jakarta Sans', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

body::before {
    content: ''; position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-image: linear-gradient(rgba(0, 242, 255, 0.02) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(0, 242, 255, 0.02) 1px, transparent 1px);
    background-size: 40px 40px; z-index: -1; pointer-events: none;
}

.container { max-width: 1100px; margin: 0 auto; padding: 40px 20px; }

/* Typography */
h1 {
    font-size: clamp(2.5rem, 8vw, 4rem); font-weight: 800; text-align: center;
    background: linear-gradient(135deg, #fff 30%, var(--accent) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    margin-bottom: 10px; letter-spacing: -0.03em;
}

.tagline {
    text-align: center; color: var(--text-muted); font-size: 1.1rem;
    margin-bottom: 60px; font-weight: 300;
}

/* Hero Section */
.hero-section {
    max-width: 800px; margin: 0 auto 80px; padding: 6px;
    background: linear-gradient(90deg, var(--glass-border), transparent, var(--glass-border));
    border-radius: 20px;
}

.url-input-form {
    display: flex; background: #0a0a10; border-radius: 16px; padding: 8px; gap: 8px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.url-input-form input[type="text"] {
    flex: 1; background: transparent; border: none; padding: 15px 20px;
    color: var(--text-main); font-size: 1.1rem; outline: none;
}

.url-input-form button {
    background: var(--accent); color: var(--bg-dark); border: none;
    padding: 15px 30px; border-radius: 12px; font-weight: 700;
    cursor: pointer; transition: var(--transition);
}

.url-input-form button:hover { transform: translateY(-2px); background: #fff; }

/* Video Player UI */
.video-player-section {
    background: var(--bg-card); backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border); border-radius: 24px;
    padding: 20px; margin-bottom: 80px;
}

.video-player-container {
    background: #000; border-radius: 16px; overflow: hidden;
    position: relative; aspect-ratio: 16/9; box-shadow: 0 0 40px rgba(0,0,0,0.5);
}

.video-player-container video { width: 100%; height: 100%; }

/* Big Play Overlay */
.big-play-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    background: rgba(0,0,0,0.2); color: #fff;
    cursor: pointer; opacity: 0; transition: var(--transition); z-index: 10;
}
.video-player-container:hover .big-play-overlay { opacity: 1; }
.big-play-overlay svg { filter: drop-shadow(0 0 20px rgba(0,242,255,0.5)); transition: transform 0.2s; }
.big-play-overlay:hover svg { transform: scale(1.1); }

/* Advanced Player Controls */
.player-controls {
    position: absolute; bottom: 0; left: 0; width: 100%;
    padding: 20px; background: linear-gradient(transparent, rgba(0,0,0,0.95));
    transform: translateY(10px); opacity: 0;
    transition: var(--transition); z-index: 20;
    display: flex; flex-direction: column; gap: 12px;
}

.video-player-container:hover .player-controls,
.video-player-container.paused .player-controls {
    transform: translateY(0); opacity: 1;
}

/* Timeline */
.timeline-bar { display: flex; align-items: center; gap: 15px; }

.time-display { font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; color: var(--accent); min-width: 45px; }

.progress-slider { flex: 1; -webkit-appearance: none; background: rgba(255,255,255,0.1); height: 4px; border-radius: 2px; }
.progress-slider::-webkit-slider-thumb { -webkit-appearance: none; height: 12px; width: 12px; border-radius: 50%; background: var(--accent); cursor: pointer; box-shadow: 0 0 10px var(--accent); }

/* Controls Grid */
.controls-grid { display: flex; justify-content: space-between; align-items: center; }

.nav-group, .tools-group { display: flex; align-items: center; gap: 10px; }

.control-btn {
    background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.05);
    color: #fff; padding: 8px; border-radius: 8px; cursor: pointer;
    transition: var(--transition); display: flex; align-items: center; justify-content: center;
}
.control-btn:hover { background: rgba(0,242,255,0.1); border-color: var(--glass-border); color: var(--accent); }
.control-btn.main-play { background: var(--accent); color: var(--bg-dark); padding: 10px; border-radius: 10px; }
.control-btn.main-play:hover { background: #fff; transform: scale(1.05); }

/* Speed Controls */
.speed-controls { display: flex; background: rgba(255,255,255,0.05); padding: 3px; border-radius: 8px; }
.speed-controls button {
    background: none; border: none; color: var(--text-muted); padding: 5px 10px;
    font-size: 0.75rem; font-family: 'JetBrains Mono', monospace; cursor: pointer; border-radius: 6px;
}
.speed-controls button.active { background: var(--accent); color: var(--bg-dark); font-weight: 700; }

/* Volume Slider */
.volume-controls { display: flex; align-items: center; gap: 8px; }
.volume-slider { width: 0; opacity: 0; transition: var(--transition); -webkit-appearance: none; background: rgba(255,255,255,0.1); height: 3px; border-radius: 2px; }
.volume-controls:hover .volume-slider { width: 60px; opacity: 1; }
.volume-slider::-webkit-slider-thumb { -webkit-appearance: none; height: 10px; width: 10px; border-radius: 50%; background: #fff; }

/* Cards & Content */
.how-to-use, .why-use, .faq {
    background: var(--bg-card); backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05); border-radius: 24px;
    padding: 35px; margin-bottom: 30px;
}

h2 { font-size: 1.6rem; margin-bottom: 20px; display: flex; align-items: center; gap: 12px; }
h2::before { content: ''; width: 4px; height: 20px; background: var(--accent); border-radius: 2px; }

.placeholder-player {
    height: 100%; display: flex; flex-direction: column; justify-content: center;
    align-items: center; background: #05050a; color: #303040;
}

footer { padding: 60px 20px; text-align: center; opacity: 0.6; font-size: 0.9rem; }

/* Responsive Design - Mobile Optimized */
@media (max-width: 768px) {
    .container { padding: 15px 10px; }
    h1 { font-size: 2.2rem; }
    .tagline { font-size: 1rem; margin-bottom: 40px; }

    .hero-section { padding: 10px; border-radius: 18px; margin-bottom: 40px; }
    .url-input-form { flex-direction: column; padding: 6px; }
    .url-input-form input[type="text"] { padding: 12px; font-size: 1rem; }
    .url-input-form button { width: 100%; padding: 12px; font-size: 0.95rem; }

    .video-player-section { padding: 10px; border-radius: 18px; margin-bottom: 40px; }
    
    .video-player-container {
        aspect-ratio: auto; /* Allow dynamic height */
        display: flex;
        flex-direction: column;
        overflow: visible;
        background: none;
        box-shadow: none;
    }

    .video-player-container video {
        position: relative; /* Take up natural space */
        width: 100%;
        height: auto;
        border-radius: 12px;
        box-shadow: 0 5px 20px rgba(0,0,0,0.5);
    }

    .big-play-overlay {
        height: calc(100% - 150px); /* Adjust to stay over video area only */
        top: 0;
    }
    
    .player-controls {
        position: static; /* Move below the video */
        transform: none !important;
        opacity: 1 !important;
        padding: 20px 10px;
        background: var(--bg-card);
        border: 1px solid var(--glass-border);
        border-radius: 15px;
        margin-top: 15px;
        box-shadow: var(--glow);
    }

    .controls-grid {
        flex-direction: column;
        gap: 15px;
    }

    .nav-group {
        width: 100%;
        justify-content: center;
        gap: 20px;
    }

    .nav-group .control-btn svg {
        width: 32px;
        height: 32px;
    }

    .tools-group {
        width: 100%;
        justify-content: space-between;
        gap: 10px;
    }

    /* Hide volume slider on mobile to save space */
    .volume-controls { display: none !important; }
    
    .speed-controls {
        flex: 1;
        justify-content: space-around;
    }
    
    .speed-controls button {
        flex: 1;
        padding: 8px 0;
        font-size: 0.8rem;
    }

    .control-btn {
        padding: 10px;
        background: rgba(255,255,255,0.1);
        border-radius: 10px;
    }

    .how-to-use, .why-use, .faq {
        padding: 25px;
        border-radius: 18px;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 1.8rem; }
    .nav-group { gap: 15px; }
    .nav-group .control-btn svg { width: 28px; height: 28px; }
    .big-play-overlay svg { width: 48px; height: 48px; }
}