/* ============================================
   AUTH.CSS - Modern Authentication Pages
   Matches the main chat interface aesthetic
   ============================================ */

/* Import variables from main design system */
:root {
    /* Colors from main app */
    --color-bg-primary: #1a1816;
    --color-bg-secondary: #242220;
    --color-bg-tertiary: #2d2a28;
    --color-bg-hover: #363330;
    
    --color-border: #3d3935;
    --color-border-light: #4a4540;
    
    --color-text-primary: #ece7e1;
    --color-text-secondary: #a8a29e;
    --color-text-muted: #78716c;
    
    --color-accent: #d97757;
    --color-accent-hover: #e5856a;
    --color-accent-muted: rgba(217, 119, 87, 0.15);
    
    --color-success: #22c55e;
    --color-danger: #ef4444;
    --color-info: #3b82f6;
    --color-warning: #f59e0b;
    
    /* Typography */
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Newsreader', Georgia, 'Times New Roman', serif;
    
    /* Spacing */
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    
    /* Borders & Shadows */
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
    
    --transition-normal: 250ms ease;
}

/* ===== BODY & CONTAINER ===== */

.auth-body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.5;
    display: flex;
    align-items: center;
    justify-content: center;
    
    /* Subtle background pattern */
    background-image: 
        radial-gradient(at 20% 30%, rgba(217, 119, 87, 0.03) 0px, transparent 50%),
        radial-gradient(at 80% 70%, rgba(217, 119, 87, 0.02) 0px, transparent 50%);
}

.auth-container {
    width: 100%;
    max-width: 420px;
    padding: var(--space-6);
    animation: fadeIn 0.4s ease;
}

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

/* ===== FORM CARD ===== */

.auth-form {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-lg);
}

/* ===== BRAND & HEADERS ===== */

.auth-brand {
    text-align: center;
    margin-bottom: var(--space-6);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
}

.auth-brand h1 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 500;
    margin: 0;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

.auth-form h2 {
    text-align: center;
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin: 0 0 var(--space-6) 0;
}

/* ===== INPUT GROUPS ===== */

.input-group {
    margin-bottom: var(--space-5);
}

.input-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.modal-input,
input[type="text"],
input[type="email"],
input[type="password"] {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: 0.9375rem;
    font-family: var(--font-body);
    transition: all var(--transition-normal);
    box-sizing: border-box;
}

.modal-input:hover,
input[type="text"]:hover,
input[type="email"]:hover,
input[type="password"]:hover {
    border-color: var(--color-border-light);
    background: var(--color-bg-hover);
}

.modal-input:focus,
input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus {
    outline: none;
    border-color: var(--color-accent);
    background: var(--color-bg-hover);
    box-shadow: 0 0 0 3px var(--color-accent-muted);
}

.modal-input::placeholder,
input::placeholder {
    color: var(--color-text-muted);
}

/* ===== BUTTONS ===== */

.primary-btn,
button[type="submit"] {
    width: 100%;
    padding: var(--space-3) var(--space-5);
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 500;
    font-family: var(--font-body);
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.primary-btn:hover,
button[type="submit"]:hover {
    background: var(--color-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 12px rgba(217, 119, 87, 0.3);
}

.primary-btn:active,
button[type="submit"]:active {
    transform: translateY(0);
}

.secondary-btn,
a.secondary-btn {
    display: block;
    width: 100%;
    padding: var(--space-3) var(--space-5);
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-sizing: border-box;
}

.secondary-btn:hover,
a.secondary-btn:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-border-light);
    transform: translateY(-1px);
}

/* ===== DIVIDER ===== */

.auth-divider {
    position: relative;
    text-align: center;
    margin: var(--space-6) 0;
    color: var(--color-text-muted);
    font-size: 0.8125rem;
    font-weight: 500;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 45%;
    height: 1px;
    background: var(--color-border);
}

.auth-divider::before {
    left: 0;
}

.auth-divider::after {
    right: 0;
}

/* ===== LINKS ===== */

.auth-form a {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-normal);
}

.auth-form a:hover {
    color: var(--color-accent-hover);
    text-decoration: underline;
}

/* Forgot password link */
.auth-form .forgot-password-link {
    text-align: right;
    margin-top: -10px;
    margin-bottom: var(--space-5);
}

.auth-form .forgot-password-link a {
    font-size: 0.875rem;
    color: var(--color-accent);
}

/* ===== MESSAGES & ALERTS ===== */

.success-message,
.error-message,
.info-message,
.warning-message,
.error,
.success,
.info,
.warning {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    margin-bottom: var(--space-4);
    border-left: 3px solid;
}

.success-message,
.success {
    background: rgba(34, 197, 94, 0.1);
    color: var(--color-success);
    border-left-color: var(--color-success);
}

.error-message,
.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-danger);
    border-left-color: var(--color-danger);
}

.info-message,
.info {
    background: rgba(59, 130, 246, 0.1);
    color: var(--color-info);
    border-left-color: var(--color-info);
}

.warning-message,
.warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
    border-left-color: var(--color-warning);
}

/* ===== 2FA SPECIFIC STYLES ===== */

.qr-code-container {
    text-align: center;
    padding: var(--space-6);
    background: white;
    border-radius: var(--radius-lg);
    margin: var(--space-6) 0;
}

.qr-code-container img  {
    max-width: 250px;
    height: auto;
}

.qr-code {
    text-align: center;
    margin: 20px 0;
    padding: 20px;
    background: var(--text-primary);
    border-radius: 12px;
    border: 2px solid var(--card-border);
    max-width: 100%;
    overflow: hidden;
}

.qr-code img {
    max-width: 100%;
    width: auto;
    height: auto;
    max-height: 280px;
    border: 3px solid var(--bg-primary);
    border-radius: 8px;
    background: white;
    padding: 15px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    display: block;
    margin: 0 auto;
}

.backup-codes-container {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-5);
    margin: var(--space-5) 0;
}

.backup-codes-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
    font-family: var(--font-mono, monospace);
    font-size: 0.875rem;
    color: var(--color-text-primary);
    list-style: none;
    padding: 0;
    margin: var(--space-4) 0;
}

.backup-codes-list li {
    background: var(--color-bg-secondary);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

.code-input-group {
    display: flex;
    gap: var(--space-2);
    justify-content: center;
    margin: var(--space-6) 0;
}

.code-input-group input {
    width: 50px;
    height: 50px;
    text-align: center;
    font-size: 1.25rem;
    font-weight: 600;
    font-family: var(--font-mono, monospace);
}

/* ===== ACTION BUTTONS (2FA, Admin) ===== */

.action-buttons {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-6);
}

.action-buttons button {
    flex: 1;
}

.danger-btn {
    background: var(--color-danger);
    color: white;
    border: none;
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.danger-btn:hover {
    background: var(--color-danger-hover);
    transform: translateY(-1px);
}

/* ===== RESPONSIVE ===== */

@media (max-width: 480px) {
    .auth-container {
        padding: var(--space-4);
    }
    
    .auth-form {
        padding: var(--space-6);
    }
    
    .auth-brand h1 {
        font-size: 1.5rem;
    }
    
    .backup-codes-list {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        flex-direction: column;
    }
}

/* ===== LOADING STATES ===== */

.loading {
    opacity: 0.6;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--color-text-muted);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ===== ACCESSIBILITY ===== */

.auth-form *:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Screen reader only text */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}