/**
 * Auth CSS - Login, Register, Password Reset pages
 * Centered card layout with light/dark theme support.
 */

body.auth-page {
    background: var(--bg-page);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--space-4);
    position: relative;
}

/* Random login background */
body.auth-page::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    height: auto;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -1;
    transition: opacity 0.3s ease;
}

/* Full background, no opacity */
body.auth-page::before {
    opacity: 1;
}

/* Background options - 1x (default) */
body.auth-page[data-bg="clocktower"]::before { background-image: url('/static/assets/backgrounds/clocktower_1x.jpg'); }
body.auth-page[data-bg="fountain"]::before { background-image: url('/static/assets/backgrounds/fountain_1x.jpg'); }
body.auth-page[data-bg="fairytale"]::before { background-image: url('/static/assets/backgrounds/fairytale_1x.jpg'); }
body.auth-page[data-bg="sunsettown"]::before { background-image: url('/static/assets/backgrounds/sunsettown_1x.jpg'); }
body.auth-page[data-bg="outlinedsunset"]::before { background-image: url('/static/assets/backgrounds/outlinedsunset_1x.jpg'); }
body.auth-page[data-bg="outlinedhilltop"]::before { background-image: url('/static/assets/backgrounds/outlinedhilltop_1x.jpg'); }
body.auth-page[data-bg="duskcastle"]::before { background-image: url('/static/assets/backgrounds/duskcastle_1x.jpg'); }
body.auth-page[data-bg="nightvillage"]::before { background-image: url('/static/assets/backgrounds/nightvillage_1x.jpg'); }
body.auth-page[data-bg="harborsunset"]::before { background-image: url('/static/assets/backgrounds/harborsunset_1x.jpg'); }

/* 2x screens (retina) */
@media (-webkit-min-device-pixel-ratio: 1.5), (min-resolution: 144dpi) {
    body.auth-page[data-bg="clocktower"]::before { background-image: url('/static/assets/backgrounds/clocktower_2x.jpg'); }
    body.auth-page[data-bg="fountain"]::before { background-image: url('/static/assets/backgrounds/fountain_2x.jpg'); }
    body.auth-page[data-bg="fairytale"]::before { background-image: url('/static/assets/backgrounds/fairytale_2x.jpg'); }
    body.auth-page[data-bg="sunsettown"]::before { background-image: url('/static/assets/backgrounds/sunsettown_2x.jpg'); }
    body.auth-page[data-bg="outlinedsunset"]::before { background-image: url('/static/assets/backgrounds/outlinedsunset_2x.jpg'); }
    body.auth-page[data-bg="outlinedhilltop"]::before { background-image: url('/static/assets/backgrounds/outlinedhilltop_2x.jpg'); }
    body.auth-page[data-bg="duskcastle"]::before { background-image: url('/static/assets/backgrounds/duskcastle_2x.jpg'); }
    body.auth-page[data-bg="nightvillage"]::before { background-image: url('/static/assets/backgrounds/nightvillage_2x.jpg'); }
    body.auth-page[data-bg="harborsunset"]::before { background-image: url('/static/assets/backgrounds/harborsunset_2x.jpg'); }
}

/* 4K / high-res screens */
@media (-webkit-min-device-pixel-ratio: 2.5), (min-resolution: 240dpi), (min-width: 2560px) {
    body.auth-page[data-bg="clocktower"]::before { background-image: url('/static/assets/backgrounds/clocktower_4x.jpg'); }
    body.auth-page[data-bg="fountain"]::before { background-image: url('/static/assets/backgrounds/fountain_4x.jpg'); }
    body.auth-page[data-bg="fairytale"]::before { background-image: url('/static/assets/backgrounds/fairytale_4x.jpg'); }
    body.auth-page[data-bg="sunsettown"]::before { background-image: url('/static/assets/backgrounds/sunsettown_4x.jpg'); }
    body.auth-page[data-bg="outlinedsunset"]::before { background-image: url('/static/assets/backgrounds/outlinedsunset_4x.jpg'); }
    body.auth-page[data-bg="outlinedhilltop"]::before { background-image: url('/static/assets/backgrounds/outlinedhilltop_4x.jpg'); }
    body.auth-page[data-bg="duskcastle"]::before { background-image: url('/static/assets/backgrounds/duskcastle_4x.jpg'); }
    body.auth-page[data-bg="nightvillage"]::before { background-image: url('/static/assets/backgrounds/nightvillage_4x.jpg'); }
    body.auth-page[data-bg="harborsunset"]::before { background-image: url('/static/assets/backgrounds/harborsunset_4x.jpg'); }
}

/* Theme toggle (top-right corner) */
.auth-theme-toggle {
    position: fixed;
    top: var(--space-4);
    right: var(--space-4);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
    z-index: 10;
}

.auth-theme-toggle:hover {
    color: var(--text-primary);
    border-color: var(--border-strong);
}

.auth-theme-toggle svg {
    width: 18px;
    height: 18px;
}

.auth-container {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-10);
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
}

.auth-container.centered {
    text-align: center;
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.auth-header h1 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: var(--space-2);
    letter-spacing: -0.01em;
}

.auth-header .brand-accent {
    color: var(--primary);
}

.auth-header .subtitle {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Auth page specific form styles */
.auth-container .form-group {
    margin-bottom: var(--space-5);
}

.auth-container label {
    color: var(--text-primary);
}

.auth-container input {
    padding: 12px 16px;
    height: 44px;
    border: 1px solid var(--border);
    background: var(--bg-surface);
    font-size: 16px;
}

.auth-container input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-muted);
}

.auth-container select {
    padding: 12px 16px;
    height: 44px;
    border: 1px solid var(--border);
    background: var(--bg-surface);
    font-size: 16px;
}

.auth-container select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-muted);
}

/* Auth submit button */
.auth-container button[type="submit"],
.auth-container .btn-auth {
    width: 100%;
    height: 44px;
    padding: 10px 24px;
    background: var(--primary);
    border: none;
    border-radius: var(--radius);
    color: var(--primary-foreground);
    font-family: var(--font-sans);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
}

.auth-container button[type="submit"]:hover,
.auth-container .btn-auth:hover {
    background: var(--primary-hover);
}

.auth-container button[type="submit"]:active,
.auth-container .btn-auth:active {
    transform: translateY(1px);
}

.auth-container button[type="submit"]:disabled,
.auth-container .btn-auth:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Checkbox styling */
.checkbox-group {
    margin-bottom: var(--space-6);
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-right: 10px;
    accent-color: var(--primary);
    cursor: pointer;
}

/* Links at bottom of auth forms */
.auth-links {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-5);
    font-size: 14px;
}

.auth-links a {
    color: var(--primary);
}

.auth-links a:hover {
    text-decoration: underline;
}

.auth-link-center {
    display: block;
    text-align: center;
    margin-top: var(--space-5);
    color: var(--primary);
    font-size: 14px;
}

.auth-link-center:hover {
    text-decoration: underline;
}

/* Password hint */
.password-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: var(--space-1);
}

/* Brand logo in auth pages */
.auth-header .auth-brand-logo {
    max-width: 240px;
    height: auto;
    margin-bottom: var(--space-4);
}

/* Legacy brand icon (kept for reference) */
.auth-header .auth-brand-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--space-4);
}

.auth-header .auth-attribution {
    font-family: 'Rajdhani', sans-serif;
    font-size: 10px;
    font-weight: 400;
    color: var(--text-muted);
    letter-spacing: 0.12em;
    margin-top: -2px;
    margin-bottom: var(--space-2);
}

/* Verification page icons */
.verify-icon {
    font-size: 48px;
    margin-bottom: var(--space-4);
}

.verify-icon.success {
    color: var(--success);
}

.verify-icon.error {
    color: var(--error);
}

.username-highlight {
    font-weight: 600;
    color: var(--primary);
}

/* Error message in auth forms */
.auth-container .error {
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    color: var(--error-text);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius);
    margin-bottom: var(--space-5);
    font-size: 14px;
}

/* Info text at bottom */
.info-text {
    text-align: center;
    color: var(--text-muted);
    font-size: 12px;
    margin-top: var(--space-5);
}

/* Password field with show/hide toggle */
.password-wrapper {
    position: relative;
}

.password-wrapper input {
    padding-right: 44px;
}

.password-toggle {
    position: absolute;
    right: 1px;
    top: 1px;
    bottom: 1px;
    width: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 0 var(--radius) var(--radius) 0;
    transition: color 0.15s;
}

.password-toggle:hover {
    color: var(--text-primary);
}

.password-toggle svg {
    width: 18px;
    height: 18px;
}

/* Inline field validation */
.field-error {
    font-size: 12px;
    color: var(--error);
    margin-top: var(--space-1);
    display: none;
}

.field-error.visible {
    display: block;
}

.auth-container input.invalid {
    border-color: var(--error);
}

.auth-container input.valid {
    border-color: var(--success);
}

/* Password strength indicator */
.password-strength {
    height: 4px;
    border-radius: 2px;
    background: var(--bg-muted);
    margin-top: var(--space-2);
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    border-radius: 2px;
    transition: width 0.2s, background-color 0.2s;
    width: 0;
}

.password-strength-label {
    font-size: 11px;
    margin-top: 2px;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 480px) {
    .auth-container {
        padding: var(--space-6);
        border-radius: var(--radius);
        box-shadow: var(--shadow);
    }

    .auth-header {
        margin-bottom: var(--space-6);
    }

    .auth-header .auth-brand-icon {
        width: 48px;
        height: 48px;
    }

    .auth-header h1 {
        font-size: 20px;
    }
}