/* --- 1. VARIABLES & THEME --- */
:root {
    --primary: #00f2ff;
    --secondary: #7000ff;
    --bg: #050508;
    --card: #11111a;
    --text: #ffffff;
    --text-dim: #94a3b8;
    --border: rgba(255, 255, 255, 0.1);
    --font-main: 'Inter', sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

/* --- 2. GLOBAL RESET --- */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-main);
    overflow-x: hidden;
    line-height: 1.6;
}

.hidden { display: none !important; }

/* --- 3. ANIMATED BACKGROUND --- */
.blob-bg {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -1;
    background: 
        radial-gradient(circle at 20% 30%, rgba(0, 242, 255, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(112, 0, 255, 0.05) 0%, transparent 40%);
}

.app-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
}

/* --- 4. HEADER & NAVIGATION --- */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-family: var(--font-display);
    font-size: 1.2rem;
}

.logo-box {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    padding: 4px 8px;
    border-radius: 6px;
    color: #000;
}

nav a {
    text-decoration: none;
    color: var(--text-dim);
    margin-left: 20px;
    font-size: 0.9rem;
    transition: 0.3s;
}

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

/* --- 5. HERO SECTION --- */
.hero { text-align: center; margin-bottom: 3rem; }
.hero h1 { font-family: var(--font-display); font-size: 3rem; margin-bottom: 10px; }
.gradient-text { 
    background: linear-gradient(90deg, var(--primary), var(--secondary)); 
    -webkit-background-clip: text; 
    background-clip: text;
    -webkit-text-fill-color: transparent; 
}
.hero p { color: var(--text-dim); font-size: 1.1rem; }

/* --- 6. GLASS CARD & FORM --- */
.glass-card {
    background: var(--card);
    border: 1px solid var(--border);
    padding: 2.5rem;
    border-radius: 24px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

.input-grid { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 1.5rem; 
}

.input-group { margin-bottom: 1.5rem; }

label { 
    color: var(--text-dim); 
    font-size: 0.75rem; 
    text-transform: uppercase; 
    letter-spacing: 1px; 
    display: block; 
    margin-bottom: 8px; 
}

select, textarea {
    width: 100%;
    background: #000;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px;
    color: #fff;
    font-size: 1rem;
    outline: none;
    transition: 0.3s;
}

textarea { font-family: var(--font-mono); height: 140px; resize: none; }
select:focus, textarea:focus { border-color: var(--primary); }
select:disabled { opacity: 0.4; cursor: not-allowed; }

/* --- 7. FILE UPLOAD STYLING --- */
.file-upload-wrapper { 
    position: relative; 
    width: 100%;
    min-height: 100px;
}

#file-data { 
    position: absolute; 
    opacity: 0; 
    width: 100%; 
    height: 100%; 
    cursor: pointer; 
    z-index: 10;
}

.file-custom-ui {
    background: #000;
    border: 1px dashed var(--border);
    padding: 2.5rem;
    text-align: center;
    border-radius: 10px;
    transition: 0.3s;
    pointer-events: none; /* Let clicks pass through to the input */
}

#file-data:hover + .file-custom-ui { border-color: var(--primary); background: rgba(0, 242, 255, 0.05); }
#file-name-display { color: var(--primary); font-family: var(--font-mono); font-size: 0.9rem; }

/* --- 8. BUTTON & LOADING SPINNER --- */
button {
    width: 100%;
    padding: 16px;
    border-radius: 12px;
    border: none;
    background: #fff;
    color: #000;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

button:hover { transform: translateY(-2px); box-shadow: 0 10px 25px rgba(255,255,255,0.15); }

.spinner {
    width: 20px; height: 20px;
    border: 3px solid rgba(0,0,0,0.1);
    border-top: 3px solid #000;
    border-radius: 50%;
    display: none;
    animation: spin 0.8s linear infinite;
}

button.loading .btn-text { display: none; }
button.loading .spinner { display: block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* --- 9. MIC UI STYLING --- */
.mic-container { display: flex; justify-content: center; padding: 2rem 0; }
.mic-button-wrapper { text-align: center; }
.mic-button {
    width: 100px; height: 100px; border-radius: 50%;
    background: #000; border: 2px solid var(--border);
    cursor: pointer; position: relative;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin: 0 auto 15px;
}
.mic-icon { font-size: 2.5rem; z-index: 2; }
.mic-button:hover { border-color: var(--primary); box-shadow: 0 0 30px rgba(0, 242, 255, 0.2); }
.mic-button.recording { background: rgba(255, 50, 50, 0.1); border-color: #ff3232; transform: scale(1.1); }
.mic-button.recording .mic-icon { filter: drop-shadow(0 0 10px #ff3232); }

.pulse-ring {
    position: absolute; width: 100%; height: 100%;
    border-radius: 50%; border: 2px solid #ff3232;
    opacity: 0; pointer-events: none;
}
.mic-button.recording .pulse-ring { animation: pulseMic 1.5s infinite; }
@keyframes pulseMic {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(2.5); opacity: 0; }
}

#mic-status { color: var(--text-dim); font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 1px; }

/* --- 10. RESULTS & METRICS --- */
.result-summary { text-align: center; margin-top: 3rem; margin-bottom: 1.5rem; }
#main-pred { font-size: 2.8rem; font-family: var(--font-display); color: var(--primary); text-transform: capitalize; }
#confidence { color: var(--text-dim); margin-top: 5px; }

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.card {
    background: var(--card); border: 1px solid var(--border);
    padding: 1.5rem; border-radius: 16px;
    text-align: center; transition: 0.3s;
}
.card:hover { border-color: var(--primary); transform: scale(1.02); }
.card h3 { font-size: 0.7rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; }
.card p { font-size: 1.5rem; font-family: var(--font-mono); font-weight: 700; color: var(--primary); }
.card small { font-size: 0.7rem; color: var(--text-dim); margin-left: 2px; }

/* --- 11. RESPONSIVE DESIGN --- */
@media (max-width: 768px) {
    .input-grid { grid-template-columns: 1fr; }
    .metrics-grid { grid-template-columns: 1fr 1fr; }
    .hero h1 { font-size: 2.2rem; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
#resultArea:not(.hidden) { animation: slideUp 0.6s ease-out; }