/* --- Variables & Reset --- */
:root {
    --bg-deep: #0f0c29;
    --bg-mid: #302b63;
    --bg-light: #24243e;
    
    --primary: #8b5cf6; /* Violet 500 */
    --primary-glow: #a78bfa;
    --accent: #d8b4fe;
    
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    --font-ui: 'Outfit', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

body {
    font-family: var(--font-ui);
    background-color: var(--bg-deep);
    color: #fff;
    overflow-x: hidden;
}

/* --- Animated Background --- */
.bg-gradient-animate {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(-45deg, #0f0c29, #302b63, #24243e, #1a1a2e);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    z-index: -2;
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.bg-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    z-index: -1;
    animation: floatBlob 10s ease-in-out infinite;
}

.bg-glow-1 {
    top: -10%; left: -10%; width: 50vw; height: 50vw;
    background: var(--primary);
}

.bg-glow-2 {
    bottom: -10%; right: -10%; width: 40vw; height: 40vw;
    background: #4c1d95; /* Darker Purple */
    animation-delay: -5s;
}

@keyframes floatBlob {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -20px); }
}

/* --- Typography & Helpers --- */
.text-primary-light { color: var(--accent) !important; }
.tracking-wide { letter-spacing: 0.05em; }
.max-w-lg { max-width: 600px; }

/* --- Hero Section --- */
.hero-wrapper {
    max-width: 900px;
    width: 100%;
    padding: 0 1rem;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    background: linear-gradient(to right, #fff, var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 30px rgba(139, 92, 246, 0.3);
}

@media (max-width: 768px) {
    .hero-title { font-size: 2.5rem; }
}

/* --- Glass Input --- */
.glass-input-wrapper {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
    overflow: hidden;
}

.glass-input-wrapper:focus-within {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(139, 92, 246, 0.2);
    border-color: var(--primary);
}

.form-control::placeholder { color: rgba(255, 255, 255, 0.3); }
.form-control:focus { box-shadow: none; }

.btn-action {
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 0;
    transition: filter 0.2s;
    min-width: 120px;
}
.btn-action:hover {
    filter: brightness(1.2);
    color: white;
}

/* --- Detection & Options --- */
.glass-badge {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    border: 1px solid var(--glass-border);
    font-weight: 300;
    letter-spacing: 1px;
}

.options-drawer {
    max-width: 600px;
}

.option-group {
    animation: slideDown 0.4s ease forwards;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Custom Switch Toggle (MP3/MP4) */
.switch-toggle {
    display: flex;
    background: rgba(0,0,0,0.4);
    border-radius: 8px;
    position: relative;
    padding: 4px;
    width: fit-content;
    border: 1px solid var(--glass-border);
}
.switch-toggle input { display: none; }
.switch-toggle label {
    padding: 6px 16px;
    cursor: pointer;
    z-index: 2;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.7);
    transition: color 0.3s;
}
.toggle-bg {
    position: absolute;
    top: 4px; left: 4px;
    height: calc(100% - 8px);
    width: calc(50% - 4px); /* Approximation */
    background: var(--primary);
    border-radius: 6px;
    transition: transform 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
    z-index: 1;
}
#format-mp3:checked ~ .toggle-bg { transform: translateX(0); width: 63px; }
#format-mp4:checked ~ .toggle-bg { transform: translateX(100%) translateX(6px); width: 63px; }
#format-mp3:checked + label { color: white; }
#format-mp4:checked + label { color: white; }

.glass-select {
    background: rgba(0,0,0,0.4);
    border: 1px solid var(--glass-border);
    color: white;
    border-radius: 8px;
    font-size: 0.9rem;
    cursor: pointer;
}
.glass-select:focus {
    background: rgba(0,0,0,0.6);
    color: white;
    box-shadow: none;
    border-color: var(--primary);
}

.custom-switch:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

/* --- Processing & Terminal --- */
.glass-progress {
    height: 6px;
    background: rgba(255,255,255,0.1);
    border-radius: 3px;
    overflow: hidden;
}
.bg-primary-gradient {
    background: linear-gradient(90deg, var(--primary), var(--accent));
    box-shadow: 0 0 10px var(--primary);
    transition: width 0.3s ease;
}

.terminal-window {
    background: rgba(10, 10, 15, 0.85); /* Very dark */
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    height: 200px;
    display: flex;
    flex-direction: column;
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.terminal-body {
    flex: 1;
    overflow-y: auto;
    font-family: var(--font-mono);
    opacity: 0.9;
    padding-top: 0.5rem;
}
.terminal-line {
    margin-bottom: 4px;
    animation: typeIn 0.2s ease forwards;
}
@keyframes typeIn { from { opacity: 0; transform: translateX(-5px); } to { opacity: 1; transform: translateX(0); } }

/* --- Result View --- */
.result-card {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}
.btn-primary-glow {
    background: var(--primary);
    color: white;
    border: none;
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.4);
    transition: transform 0.2s, box-shadow 0.2s;
}
.btn-primary-glow:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(139, 92, 246, 0.6);
    color: white;
}

/* --- History Modal --- */
.glass-modal {
    background: rgba(20, 20, 30, 0.85);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 0 50px rgba(0,0,0,0.5);
}
.border-bottom-white-10 { border-bottom: 1px solid rgba(255,255,255,0.1); }
.border-top-white-10 { border-top: 1px solid rgba(255,255,255,0.1); }
#history-table a { color: var(--accent); text-decoration: none; }
#history-table a:hover { text-decoration: underline; }

/* --- Utility Classes --- */
.btn-glass-icon {
    background: rgba(255,255,255,0.1);
    color: white;
    border: 1px solid transparent;
    border-radius: 50%;
    width: 45px; height: 45px;
    transition: all 0.2s;
}
.btn-glass-icon:hover {
    background: rgba(255,255,255,0.2);
    color: white;
    border-color: rgba(255,255,255,0.3);
}

.fade-in { animation: fadeIn 0.8s ease forwards; opacity: 0; }
.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }

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

.glass-alert {
    background: rgba(220, 38, 38, 0.2);
    border: 1px solid rgba(220, 38, 38, 0.5);
    backdrop-filter: blur(5px);
}