/**
 * =============================================================================
 * STANDALONE PAGE BASE STYLES
 * =============================================================================
 *
 * Minimal design tokens for standalone pages (login, MFA, password reset, etc.)
 * that are NOT included within index.php and need their own document structure.
 *
 * This file provides:
 * - Core CSS variables for light/dark mode
 * - Basic typography and layout styles
 * - Form component styles
 *
 * USAGE:
 * Standalone pages should load ONLY this file (not theme-dark.css):
 *   <link href="/css/standalone-base.css" rel="stylesheet">
 *
 * Dark mode is controlled via data-theme="dark" on the <html> element.
 * =============================================================================
 */

/* =============================================================================
   LIGHT MODE (Default)
   ============================================================================= */

:root {
    /* -------------------------------------------------------------------------
       COLOR PALETTE
       ------------------------------------------------------------------------- */
    --color-primary: #2284B5;
    --color-primary-hover: #1a6d94;
    --color-primary-light: rgba(34, 132, 181, 0.1);

    --color-success: #28a745;
    --color-success-hover: #218838;
    --color-success-light: rgba(40, 167, 69, 0.1);

    --color-warning: #f59e0b;
    --color-warning-hover: #d97706;
    --color-warning-light: rgba(245, 158, 11, 0.1);

    --color-danger: #dc3545;
    --color-danger-hover: #c82333;
    --color-danger-light: rgba(220, 53, 69, 0.1);

    /* -------------------------------------------------------------------------
       TEXT COLORS
       ------------------------------------------------------------------------- */
    --text-primary: #212529;
    --text-secondary: #495057;
    --text-muted: #6c757d;
    --text-inverse: #ffffff;

    /* -------------------------------------------------------------------------
       BACKGROUND COLORS
       ------------------------------------------------------------------------- */
    --bg-page: #f5f5f7;
    --bg-card: #ffffff;
    --bg-subtle: #f8f9fa;
    --bg-hover: #e9ecef;
    --bg-input: #ffffff;
    --bg-header: #e9ecef;

    /* -------------------------------------------------------------------------
       BORDER COLORS
       ------------------------------------------------------------------------- */
    --border-default: #dee2e6;
    --border-input: #ced4da;
    --border-input-focus: var(--color-primary);
    --border-accent: #339966;

    /* -------------------------------------------------------------------------
       COMPONENT SPECIFIC
       ------------------------------------------------------------------------- */
    --btn-primary-bg: var(--color-primary);
    --btn-primary-hover: var(--color-primary-hover);

    --error-bg: #ffebee;
    --error-color: #c62828;

    --success-bg: #e8f5e9;
    --success-color: #2e7d32;

    --info-bg: #e3f2fd;
    --info-color: #1565c0;

    /* -------------------------------------------------------------------------
       SHADOWS & EFFECTS
       ------------------------------------------------------------------------- */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);

    /* -------------------------------------------------------------------------
       TYPOGRAPHY
       ------------------------------------------------------------------------- */
    --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-mono: "SF Mono", Monaco, "Cascadia Code", "Courier New", monospace;
}

/* =============================================================================
   DARK MODE
   ============================================================================= */

[data-theme="dark"] {
    /* -------------------------------------------------------------------------
       COLOR PALETTE
       ------------------------------------------------------------------------- */
    --color-primary: #4a9fd4;
    --color-primary-hover: #6bb3e0;
    --color-primary-light: rgba(74, 159, 212, 0.15);

    --color-success: #4ade80;
    --color-success-hover: #86efac;
    --color-success-light: rgba(74, 222, 128, 0.15);

    --color-warning: #fbbf24;
    --color-warning-hover: #fcd34d;
    --color-warning-light: rgba(251, 191, 36, 0.15);

    --color-danger: #f87171;
    --color-danger-hover: #fca5a5;
    --color-danger-light: rgba(248, 113, 113, 0.15);

    /* -------------------------------------------------------------------------
       TEXT COLORS
       ------------------------------------------------------------------------- */
    --text-primary: #f3f4f6;
    --text-secondary: #d1d5db;
    --text-muted: #9ca3af;
    --text-inverse: #111827;

    /* -------------------------------------------------------------------------
       BACKGROUND COLORS
       ------------------------------------------------------------------------- */
    --bg-page: #111827;
    --bg-card: #1f2937;
    --bg-subtle: #374151;
    --bg-hover: #374151;
    --bg-input: #374151;
    --bg-header: #0f172a;

    /* -------------------------------------------------------------------------
       BORDER COLORS
       ------------------------------------------------------------------------- */
    --border-default: #374151;
    --border-input: #4b5563;
    --border-input-focus: var(--color-primary);
    --border-accent: var(--color-primary);

    /* -------------------------------------------------------------------------
       COMPONENT SPECIFIC
       ------------------------------------------------------------------------- */
    --error-bg: rgba(248, 113, 113, 0.15);
    --error-color: #fca5a5;

    --success-bg: rgba(74, 222, 128, 0.15);
    --success-color: #86efac;

    --info-bg: rgba(56, 189, 248, 0.15);
    --info-color: #7dd3fc;

    /* -------------------------------------------------------------------------
       SHADOWS & EFFECTS
       ------------------------------------------------------------------------- */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
}

/* =============================================================================
   BASE STYLES
   ============================================================================= */

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family-base);
    font-size: 14px;
    background-color: var(--bg-page);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1.5;
}

/* =============================================================================
   CONTAINER STYLES
   ============================================================================= */

.standalone-container {
    width: 100%;
    max-width: 400px;
    margin: 20px;
    background-color: var(--bg-card);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.standalone-container.wide {
    max-width: 500px;
}

.standalone-header {
    background-color: var(--bg-header);
    border-bottom: 2px solid var(--border-accent);
    padding: 20px;
    text-align: center;
}

.standalone-header h1 {
    margin: 0;
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
}

.standalone-header p {
    margin: 5px 0 0;
    font-size: 12px;
    color: var(--text-muted);
}

.standalone-header .icon {
    font-size: 48px;
    margin-bottom: 10px;
}

.standalone-content {
    padding: 30px;
}

.standalone-footer {
    padding: 0 30px 30px;
    text-align: center;
    font-size: 12px;
}

.standalone-footer a {
    color: var(--color-primary);
    text-decoration: none;
}

.standalone-footer a:hover {
    text-decoration: underline;
}

/* =============================================================================
   FORM STYLES
   ============================================================================= */

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-primary);
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    font-size: 14px;
    font-family: var(--font-family-base);
    border: 1px solid var(--border-input);
    border-radius: 4px;
    background-color: var(--bg-input);
    color: var(--text-primary);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--border-input-focus);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

/* Code input (for MFA, verification codes) */
.code-input {
    font-size: 24px;
    font-family: var(--font-family-mono);
    text-align: center;
    letter-spacing: 8px;
    border-width: 2px;
}

/* Secret key display */
.secret-key {
    background-color: var(--bg-subtle);
    padding: 12px;
    border-radius: 4px;
    font-family: var(--font-family-mono);
    font-size: 16px;
    text-align: center;
    letter-spacing: 2px;
    margin: 15px 0;
    border: 1px solid var(--border-default);
    color: var(--text-primary);
}

/* =============================================================================
   BUTTON STYLES
   ============================================================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 14px;
    font-size: 16px;
    font-weight: 600;
    font-family: var(--font-family-base);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    color: var(--text-inverse);
    background-color: var(--btn-primary-bg);
}

.btn-primary:hover {
    background-color: var(--btn-primary-hover);
}

.btn-secondary {
    color: var(--text-primary);
    background-color: var(--bg-subtle);
    border: 1px solid var(--border-default);
}

.btn-secondary:hover {
    background-color: var(--bg-hover);
}

/* =============================================================================
   CHECKBOX STYLES
   ============================================================================= */

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-primary);
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    margin-right: 8px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

/* =============================================================================
   MESSAGE STYLES
   ============================================================================= */

.message,
.error-message,
.success-message,
.info-message,
.warning-message {
    padding: 12px;
    border-radius: 4px;
    margin-bottom: 20px;
    font-size: 13px;
}

.error-message {
    background-color: var(--error-bg);
    color: var(--error-color);
}

.success-message {
    background-color: var(--success-bg);
    color: var(--success-color);
}

.info-message {
    background-color: var(--info-bg);
    color: var(--info-color);
}

.info-message a,
.success-message a {
    color: inherit;
    font-weight: 600;
}

.warning-message,
.required-notice {
    background-color: var(--color-warning-light);
    color: var(--color-warning);
}

/* =============================================================================
   STEP INDICATOR STYLES (for MFA setup, etc.)
   ============================================================================= */

.step {
    margin-bottom: 25px;
    padding-bottom: 25px;
    border-bottom: 1px solid var(--border-default);
}

.step:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.step-number {
    display: inline-block;
    width: 28px;
    height: 28px;
    line-height: 28px;
    text-align: center;
    background-color: var(--color-primary);
    color: var(--text-inverse);
    border-radius: 50%;
    font-weight: bold;
    margin-right: 10px;
}

.step-title {
    font-weight: bold;
    font-size: 15px;
    margin-bottom: 15px;
    color: var(--text-primary);
}

/* =============================================================================
   QR CODE CONTAINER
   ============================================================================= */

.qr-container {
    text-align: center;
    margin: 20px 0;
}

.qr-container img {
    border: 4px solid var(--bg-card);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

/* =============================================================================
   HELPER TEXT
   ============================================================================= */

.help-text {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 8px;
}

.app-list {
    font-size: 12px;
    color: var(--text-muted);
    margin: 10px 0;
    padding-left: 20px;
}

/* =============================================================================
   THEME TOGGLE
   ============================================================================= */

.theme-toggle {
    position: absolute;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    opacity: 0.7;
    color: var(--text-primary);
}

.theme-toggle:hover {
    opacity: 1;
    background-color: var(--bg-hover);
}

/* =============================================================================
   LINK DIVIDER
   ============================================================================= */

.link-divider {
    margin: 0 8px;
    color: var(--border-default);
}
