/* Voice Chat MVP - SwitchOnSchool Brand Style */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700;800&display=swap');

:root {
    /* SwitchOnSchool Brand Colors */
    --navy: #1E2148;
    --navy-light: #25286b;

    /* Neutral base - more editorial, less flat */
    --bg-white: #FFFFFF;
    --bg-subtle: #FAFAFA;
    --bg-light: #F2F2F2;
    --bg-input: #F6F6F6;

    /* Accent colors - course cards style */
    --accent-blue: #A7D8F5;
    --accent-green: #9BFF3C;
    --accent-coral: #FF8F8F;
    --accent-yellow: #FFC107;
    --accent-yellow-hover: #FFD54F;

    /* Text */
    --text-dark: #1E2148;
    --text-medium: #4a4a6a;
    --text-light: #7a7a9a;
    --text-white: #FFFFFF;

    /* Functional */
    --success: #4CAF50;
    --error: #F44336;
    --warning: #FF9800;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(30, 33, 72, 0.08);
    --shadow-md: 0 4px 16px rgba(30, 33, 72, 0.12);
    --shadow-lg: 0 8px 32px rgba(30, 33, 72, 0.16);
}

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

body {
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: #1E2148;
    background-image: url('/static/switch-campus-bg.png');
    background-size: 100% auto;
    background-position: top center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: var(--text-dark);
    min-height: 100vh;
}

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 24px;
    min-height: 100vh;
}

/* ==================== LOGIN PAGE ==================== */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-box {
    background: linear-gradient(180deg, #FFFFFF 0%, #FAFAFA 100%);
    padding: 48px 44px;
    border-radius: 20px;
    width: 100%;
    max-width: 440px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.login-box h1 {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--navy);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.login-box .subtitle {
    color: var(--text-medium);
    margin-bottom: 36px;
    font-size: 0.95rem;
    font-weight: 500;
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-input);
    border: 2px solid transparent;
    border-radius: 12px;
    color: var(--text-dark);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.25s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: var(--bg-white);
    box-shadow:
        0 0 0 4px rgba(167, 216, 245, 0.25),
        var(--shadow-sm);
}

.btn {
    padding: 14px 32px;
    border: none;
    border-radius: 14px;
    font-size: 1rem;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.25s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    width: 100%;
    background: var(--accent-yellow);
    color: var(--navy);
    box-shadow: 0 4px 16px rgba(255, 193, 7, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(255, 193, 7, 0.5);
    background: var(--accent-yellow-hover);
}

.btn-secondary {
    background: var(--bg-light);
    color: var(--text-dark);
    border: 2px solid var(--bg-light);
}

.btn-secondary:hover {
    border-color: var(--navy);
    background: var(--bg-white);
}

.error-message {
    color: var(--error);
    margin-top: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    display: none;
    padding: 12px 16px;
    background: rgba(244, 67, 54, 0.08);
    border-radius: 8px;
    border-left: 4px solid var(--error);
}

/* ==================== CHAT PAGE ==================== */
.chat-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    padding: 20px;
    background: rgba(250, 250, 250, 0.85);
}

.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background: var(--bg-white);
    border-radius: 16px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}

.chat-header > div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.chat-header h1 {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--navy);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.chat-header h1::before {
    content: '';
    display: inline-block;
    width: 14px;
    height: 14px;
    background: var(--accent-green);
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
    box-shadow: 0 0 8px rgba(155, 255, 60, 0.6);
}

@keyframes pulse-dot {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}

.brand-link {
    font-size: 0.7rem;
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-left: 26px;
}

.brand-link:hover {
    color: var(--accent-coral);
}

.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    background: var(--bg-white);
    border-radius: 20px;
    padding: 32px;
    box-shadow: var(--shadow-sm);
}

/* Status */
.status {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: var(--bg-light);
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.85rem;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-light);
    transition: all 0.3s ease;
}

.status-dot.connecting {
    background: var(--warning);
    animation: pulse 1s infinite;
}

.status-dot.connected {
    background: var(--success);
}

.status-dot.listening {
    background: var(--accent-blue);
    animation: pulse 1s infinite;
}

.status-dot.processing {
    background: var(--warning);
    animation: pulse 0.5s infinite;
}

.status-dot.speaking {
    background: var(--accent-coral);
    animation: pulse 0.5s infinite;
}

.status-dot.error {
    background: var(--error);
}

.status-dot.disconnected {
    background: var(--text-light);
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.85); }
}

.status-text {
    color: var(--text-medium);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Microphone Button */
.mic-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    margin: 16px 0;
}

.mic-btn {
    width: 130px;
    height: 130px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #FFFFFF 0%, var(--bg-light) 70%);
    border: 4px solid var(--bg-light);
    color: var(--navy);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.mic-btn:hover:not(:disabled) {
    border-color: var(--accent-blue);
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.mic-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.mic-btn.active {
    background: radial-gradient(circle at 30% 30%, #c8ff8a 0%, var(--accent-green) 70%);
    border-color: var(--accent-green);
    color: var(--navy);
    animation: mic-pulse 2s infinite;
}

@keyframes mic-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(155, 255, 60, 0.5); }
    50% { box-shadow: 0 0 0 28px rgba(155, 255, 60, 0); }
}

.mic-btn svg {
    width: 52px;
    height: 52px;
}

.mic-hint {
    color: var(--text-medium);
    font-size: 0.9rem;
    font-weight: 600;
}

/* Visualizer */
.visualizer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 50px;
    opacity: 0;
    transition: opacity 0.3s;
}

.visualizer.active {
    opacity: 1;
}

.visualizer .bar {
    width: 6px;
    height: 12px;
    background: var(--accent-blue);
    border-radius: 3px;
    transition: height 0.1s;
}

.visualizer.active .bar {
    animation: visualizer-bar 0.5s ease-in-out infinite;
}

.visualizer.active .bar:nth-child(1) { animation-delay: 0s; }
.visualizer.active .bar:nth-child(2) { animation-delay: 0.1s; }
.visualizer.active .bar:nth-child(3) { animation-delay: 0.2s; }
.visualizer.active .bar:nth-child(4) { animation-delay: 0.1s; }
.visualizer.active .bar:nth-child(5) { animation-delay: 0s; }

.visualizer.speaking .bar {
    background: var(--accent-coral);
}

@keyframes visualizer-bar {
    0%, 100% { height: 12px; }
    50% { height: 44px; }
}

/* Transcript */
.transcript {
    width: 100%;
    flex: 1;
    background: var(--bg-light);
    border-radius: 16px;
    padding: 20px;
    overflow-y: auto;
    max-height: 500px;
    min-height: 280px;
}

.transcript-placeholder {
    color: var(--text-light);
    text-align: center;
    padding: 48px 20px;
    font-size: 1rem;
    font-weight: 500;
}

.transcript-entry {
    margin-bottom: 14px;
    padding: 16px 18px;
    border-radius: 12px;
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
}

.transcript-entry.user {
    border-left: 4px solid var(--accent-blue);
}

.transcript-entry.assistant {
    border-left: 4px solid var(--accent-coral);
    background: linear-gradient(135deg, var(--bg-white) 0%, rgba(255, 143, 143, 0.05) 100%);
}

.transcript-entry .role {
    font-weight: 700;
    font-size: 0.75rem;
    display: block;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.transcript-entry.user .role {
    color: var(--accent-blue);
}

.transcript-entry.assistant .role {
    color: var(--accent-coral);
}

.transcript-entry .text {
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--text-dark);
}

.transcript-entry.pending {
    opacity: 0.65;
}

.transcript-entry.pending .text em {
    color: var(--text-light);
    font-style: italic;
}

.transcript-entry.streaming .text::after {
    content: '|';
    color: var(--accent-coral);
    animation: blink 0.8s infinite;
    font-weight: 400;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Branding footer */
.brand-footer {
    text-align: center;
    padding: 24px 16px 0;
    margin-top: 28px;
    color: var(--text-light);
    font-size: 0.8rem;
    font-weight: 500;
    border-top: 1px solid var(--bg-light);
}

.brand-footer a {
    color: var(--navy);
    text-decoration: none;
    font-weight: 700;
}

.brand-footer a:hover {
    color: var(--accent-coral);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 480px) {
    .container {
        padding: 16px;
    }

    .login-box {
        padding: 36px 24px;
        border-radius: 16px;
    }

    .login-box h1 {
        font-size: 1.4rem;
    }

    .chat-container {
        padding: 12px;
    }

    .chat-header {
        padding: 14px 18px;
        border-radius: 12px;
    }

    .chat-header h1 {
        font-size: 1.1rem;
    }

    .chat-main {
        padding: 20px 16px;
        border-radius: 16px;
    }

    .mic-btn {
        width: 110px;
        height: 110px;
    }

    .mic-btn svg {
        width: 44px;
        height: 44px;
    }

    .transcript {
        max-height: 380px;
        min-height: 220px;
    }
}