/* FRCA Focus App - Unified Stylesheet */
/* Based on the clean, flat design from cards.php */

* {
    box-sizing: border-box;
}

:root {
    /* Colour palette — shared with the public landing page (webroot/landing.css).
       The --primary-blue* names are historical: they are the app's accent colour,
       now the brand's deep teal. Prefer the --accent / --paper / --ink aliases in new code. */
    --primary-blue: #17736f;
    --primary-blue-dark: #115c59;
    --primary-blue-light: #e4f3f1;
    --secondary-gray: #6a7876;
    --secondary-gray-light: #f2efe8;
    --secondary-gray-dark: #394745;
    --background: #faf8f4;
    --card-background: #ffffff;
    --border-color: #e2ddd3;
    --border-strong: #d4cdbf;  /* form inputs */
    --text-primary: #16211f;
    --text-secondary: #6a7876;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --shadow-sm: 0 1px 2px rgba(22, 33, 31, 0.05);
    --shadow-md: 0 1px 2px rgba(22, 33, 31, 0.06), 0 8px 20px -10px rgba(22, 33, 31, 0.18);
    --shadow-lg: 0 1px 2px rgba(22, 33, 31, 0.06), 0 16px 36px -14px rgba(22, 33, 31, 0.24);
    --focus-ring: 0 0 0 3px rgba(23, 115, 111, 0.15);

    --accent: var(--primary-blue);
    --accent-dark: var(--primary-blue-dark);
    --accent-wash: var(--primary-blue-light);
    --paper: var(--background);
    --paper-2: var(--secondary-gray-light);
    --ink: var(--text-primary);
    --poppy: #e9642f;         /* from the logo */

    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Brand palette (Theme.swift) */
    --brand-teal:       #3BBFB0;
    --brand-teal-mid:   #2A998C;
    --brand-teal-deep:  #1A7972;
    --brand-ice-blue:   #E1F5F4;
    --brand-orange:     #FF8C20;
    --brand-coral:      #FF5036;
    --brand-exam-gold:  #F2B70A;

    /* ── Section colours ────────────────────────────────────────────────────
       One token per page, matching the `colour` field in includes/nav-items.php.
       Every page has its own pair so recolouring one never affects another,
       even where two currently share a value. Used by nav buttons, the mobile
       menu accent, quick actions and the calendar dots. */
    --section-dashboard:          #3BBFB0;
    --section-dashboard-hover:    #2A998C;
    --section-cards:              #3BBFB0;
    --section-cards-hover:        #2A998C;
    --section-lp:                 #AF52DE;
    --section-lp-hover:           #9B3ECA;
    --section-summaries:          #007AFF;
    --section-summaries-hover:    #005FCC;
    --section-image-quiz:         #FF8C20;
    --section-image-quiz-hover:   #E67800;
    --section-sessions:           #FF5036;
    --section-sessions-hover:     #E63B22;
    --section-productivity:       #FF2D55;
    --section-productivity-hover: #CC0033;
    --section-image-search:       #2A998C;
    --section-image-search-hover: #1A7972;
    --section-keywords:           #8E8E93;
    --section-keywords-hover:     #6D6D72;
    --section-settings:           #8E8E93;
    --section-settings-hover:     #6D6D72;
    --section-support:            #FF8C20;
    --section-support-hover:      #E67800;
    --section-articles:           #5856D6;
    --section-articles-hover:     #4442B8;
    --section-topic-correlation:       #8E8E93;
    --section-topic-correlation-hover: #6D6D72;
    --section-mcq:                #059669;
    --section-mcq-hover:          #047857;
    --section-admin:              #8E8E93;
    --section-admin-hover:        #6D6D72;

    --section-new-card:     #34C759;

    /* Graph series */
    --graph-1st:     #3BBFB0;
    --graph-2nd:     #60A5FA;
    --graph-3rd:     #818CF8;
    --graph-4th:     #A78BFA;
    --graph-target:  #F2B70A;
    --graph-ceiling: #8E8E93;

    /* Productivity calendar dot colours */
    --cal-cards:    #3BBFB0;
    --cal-lp:       #AF52DE;
    --cal-sessions: #FF5036;
    --cal-articles: #5856D6;
    --cal-exam:     #F2B70A;
}

/* Base styles */
body {
    font-family: var(--font-sans);
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* Headings use the landing page's serif. Card questions and anything inside card
   content stay in the sans face, as does Quiz Mode, which has its own look. */
h1, h2, h3 {
    font-family: var(--font-serif);
    letter-spacing: -0.01em;
}
.card-title,
.card-content :is(h1, h2, h3),
.content-card-body :is(h1, h2, h3),
.lp-content :is(h1, h2, h3),
.lc-content :is(h1, h2, h3),
.content-text :is(h1, h2, h3),
.qm-overlay :is(h1, h2, h3) {
    font-family: var(--font-sans);
    letter-spacing: normal;
}

a { color: var(--accent); }
a:hover { color: var(--accent-dark); }

:focus-visible {
    outline: 3px solid rgba(23, 115, 111, 0.45);
    outline-offset: 2px;
}

/* Layout containers */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

/* Header styles */
.app-header {
    background: rgba(250, 248, 244, 0.94);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: between;
    gap: 2rem;
}

.header-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.header-logo {
    display: inline-flex;
    flex-shrink: 0;
}

.header-logo img {
    height: 40px;
    width: auto;
    display: block;
}

.header-title h1 {
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.2;
}

.header-subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: auto;
}

/* Button styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s ease;
    white-space: nowrap;
}

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

.btn-primary {
    background-color: var(--primary-blue);
    color: white;
    border-color: var(--primary-blue);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-blue-dark);
    border-color: var(--primary-blue-dark);
}

.btn-secondary {
    background-color: var(--card-background);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--secondary-gray-light);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.btn-outline:hover:not(:disabled) {
    background-color: var(--primary-blue);
    color: white;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

/* Card styles */
.card {
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    margin-bottom: 20px;
}

.card-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--secondary-gray-light);
}

.card-header h2,
.card-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    background: var(--secondary-gray-light);
}

/* Stats and metrics */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--card-background);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--brand-teal);
    display: block;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Loading states */
.loading {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.spinner {
    width: 2rem;
    height: 2rem;
    border: 2px solid var(--border-color);
    border-left-color: var(--brand-teal);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

/* Form styles */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.625rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    transition: border-color 0.15s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: var(--focus-ring);
}

/* Error and success states */
.error-message {
    background-color: #fef2f2;
    color: var(--error);
    padding: 1rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--error);
    margin: 1rem 0;
}

.success-message {
    background-color: #f0fdf4;
    color: var(--success);
    padding: 1rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--success);
    margin: 1rem 0;
}

.warning-message {
    background-color: #fffbeb;
    color: var(--warning);
    padding: 1rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--warning);
    margin: 1rem 0;
}

/* Image Quiz specific styles */
.quiz-container {
    display: none;
}

.quiz-container.active {
    display: block;
}

.image-display {
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    text-align: center;
}

.quiz-image {
    max-width: 100%;
    max-height: 500px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    margin-bottom: 1rem;
}

.image-info {
    background: var(--secondary-gray-light);
    padding: 1rem;
    border-radius: var(--radius-md);
    display: inline-block;
    margin-top: 1rem;
}

.image-info p {
    margin: 0.25rem 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.control-btn {
    background: var(--primary-blue);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.15s ease;
    font-size: 0.875rem;
    position: relative;
}

.control-btn:hover:not(:disabled) {
    background: var(--primary-blue-dark);
}

.control-btn:disabled {
    background: var(--secondary-gray);
    cursor: not-allowed;
}

/* Tooltip for disabled buttons */
.control-btn[data-tooltip]:disabled:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--secondary-gray-dark);
    color: white;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    white-space: nowrap;
    z-index: 10;
    margin-bottom: 5px;
}

.control-btn[data-tooltip]:disabled:hover::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--secondary-gray-dark);
    z-index: 10;
}

.section {
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    display: none;
}

.section.active {
    display: block;
}

.section h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.125rem;
    font-weight: 600;
}

/* Related images grid */
.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.related-image {
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.15s ease;
}

.related-image:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-md);
}

.related-image img {
    max-width: 100%;
    max-height: 120px;
    border-radius: var(--radius-sm);
    margin-bottom: 0.5rem;
}

/* Questions grid */
.questions-container {
    display: grid;
    gap: 1rem;
}

.question-card {
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    border-left: 4px solid var(--primary-blue);
}

.question-card h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
}

.question-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 0.75rem;
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.question-content {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Responsive design */
@media (max-width: 768px) {
    .main-content {
        padding: 1rem;
    }
    
    .header-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .header-nav {
        margin-left: 0;
        width: 100%;
        justify-content: flex-start;
    }
    
    .controls {
        flex-direction: column;
        align-items: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 0.5rem;
    }
    
    .card-header,
    .card-body,
    .card-footer {
        padding: 1rem;
    }
}

/* Utility classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }

.hidden { display: none; }
.block { display: block; }
.flex { display: flex; }
.grid { display: grid; }

.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }

.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

/* Section-colour classes
   Used for quick-action buttons (.btn) and the mobile menu accent. The
   matching .header-btn-section-* rules are generated in includes/header.php
   from this same set of tokens. Keep in step with includes/nav-items.php. */

.btn-section-dashboard {
    background-color: var(--section-dashboard);
    border-color: var(--section-dashboard);
    color: #fff;
}
.btn-section-dashboard:hover:not(:disabled) {
    background-color: var(--section-dashboard-hover);
    border-color: var(--section-dashboard-hover);
    color: #fff;
}

.btn-section-cards {
    background-color: var(--section-cards);
    border-color: var(--section-cards);
    color: #fff;
}
.btn-section-cards:hover:not(:disabled) {
    background-color: var(--section-cards-hover);
    border-color: var(--section-cards-hover);
    color: #fff;
}

.btn-section-lp {
    background-color: var(--section-lp);
    border-color: var(--section-lp);
    color: #fff;
}
.btn-section-lp:hover:not(:disabled) {
    background-color: var(--section-lp-hover);
    border-color: var(--section-lp-hover);
    color: #fff;
}

.btn-section-summaries {
    background-color: var(--section-summaries);
    border-color: var(--section-summaries);
    color: #fff;
}
.btn-section-summaries:hover:not(:disabled) {
    background-color: var(--section-summaries-hover);
    border-color: var(--section-summaries-hover);
    color: #fff;
}

.btn-section-image-quiz {
    background-color: var(--section-image-quiz);
    border-color: var(--section-image-quiz);
    color: #fff;
}
.btn-section-image-quiz:hover:not(:disabled) {
    background-color: var(--section-image-quiz-hover);
    border-color: var(--section-image-quiz-hover);
    color: #fff;
}

.btn-section-sessions {
    background-color: var(--section-sessions);
    border-color: var(--section-sessions);
    color: #fff;
}
.btn-section-sessions:hover:not(:disabled) {
    background-color: var(--section-sessions-hover);
    border-color: var(--section-sessions-hover);
    color: #fff;
}

.btn-section-productivity {
    background-color: var(--section-productivity);
    border-color: var(--section-productivity);
    color: #fff;
}
.btn-section-productivity:hover:not(:disabled) {
    background-color: var(--section-productivity-hover);
    border-color: var(--section-productivity-hover);
    color: #fff;
}

.btn-section-image-search {
    background-color: var(--section-image-search);
    border-color: var(--section-image-search);
    color: #fff;
}
.btn-section-image-search:hover:not(:disabled) {
    background-color: var(--section-image-search-hover);
    border-color: var(--section-image-search-hover);
    color: #fff;
}

.btn-section-keywords {
    background-color: var(--section-keywords);
    border-color: var(--section-keywords);
    color: #fff;
}
.btn-section-keywords:hover:not(:disabled) {
    background-color: var(--section-keywords-hover);
    border-color: var(--section-keywords-hover);
    color: #fff;
}

.btn-section-settings {
    background-color: var(--section-settings);
    border-color: var(--section-settings);
    color: #fff;
}
.btn-section-settings:hover:not(:disabled) {
    background-color: var(--section-settings-hover);
    border-color: var(--section-settings-hover);
    color: #fff;
}

.btn-section-support {
    background-color: var(--section-support);
    border-color: var(--section-support);
    color: #fff;
}
.btn-section-support:hover:not(:disabled) {
    background-color: var(--section-support-hover);
    border-color: var(--section-support-hover);
    color: #fff;
}

.btn-section-articles {
    background-color: var(--section-articles);
    border-color: var(--section-articles);
    color: #fff;
}
.btn-section-articles:hover:not(:disabled) {
    background-color: var(--section-articles-hover);
    border-color: var(--section-articles-hover);
    color: #fff;
}

.btn-section-topic-correlation {
    background-color: var(--section-topic-correlation);
    border-color: var(--section-topic-correlation);
    color: #fff;
}
.btn-section-topic-correlation:hover:not(:disabled) {
    background-color: var(--section-topic-correlation-hover);
    border-color: var(--section-topic-correlation-hover);
    color: #fff;
}

.btn-section-mcq {
    background-color: var(--section-mcq);
    border-color: var(--section-mcq);
    color: #fff;
}
.btn-section-mcq:hover:not(:disabled) {
    background-color: var(--section-mcq-hover);
    border-color: var(--section-mcq-hover);
    color: #fff;
}

.btn-section-admin {
    background-color: var(--section-admin);
    border-color: var(--section-admin);
    color: #fff;
}
.btn-section-admin:hover:not(:disabled) {
    background-color: var(--section-admin-hover);
    border-color: var(--section-admin-hover);
    color: #fff;
}

/* Mobile nav items - left-border accent that mirrors button colours */
.mobile-nav-item.section-dashboard         { border-left: 4px solid var(--section-dashboard); }
.mobile-nav-item.section-cards             { border-left: 4px solid var(--section-cards); }
.mobile-nav-item.section-lp                { border-left: 4px solid var(--section-lp); }
.mobile-nav-item.section-summaries         { border-left: 4px solid var(--section-summaries); }
.mobile-nav-item.section-image-quiz        { border-left: 4px solid var(--section-image-quiz); }
.mobile-nav-item.section-sessions          { border-left: 4px solid var(--section-sessions); }
.mobile-nav-item.section-productivity      { border-left: 4px solid var(--section-productivity); }
.mobile-nav-item.section-image-search      { border-left: 4px solid var(--section-image-search); }
.mobile-nav-item.section-keywords          { border-left: 4px solid var(--section-keywords); }
.mobile-nav-item.section-settings          { border-left: 4px solid var(--section-settings); }
.mobile-nav-item.section-support           { border-left: 4px solid var(--section-support); }
.mobile-nav-item.section-articles          { border-left: 4px solid var(--section-articles); }
.mobile-nav-item.section-topic-correlation { border-left: 4px solid var(--section-topic-correlation); }
.mobile-nav-item.section-mcq               { border-left: 4px solid var(--section-mcq); }
.mobile-nav-item.section-admin             { border-left: 4px solid var(--section-admin); }

/* Pending link - a {#T<id>} token in card content, where a card has been promised but not
   yet written (see migration_link_threads.sql). Rendered by processContent server-side and
   by renderCardContent on the summary page, so the styling lives here rather than on any
   one page. Deliberately quiet and unclickable: there is nothing to go to yet. */
/* Summary link - a {#S<id>} token in card content, pointing at a summary condition.
   Rendered by processContent server-side, key-points.js and the summary page. Blue, to
   read as a different kind of thing from a card link. */
.summary-link {
    color: #2563eb;
    font-weight: 600;
    text-decoration: none;
}
.summary-link:hover { text-decoration: underline; }

.pending-link {
    display: inline-block;
    padding: 1px 6px;
    border: 1px dashed #d97706;
    border-radius: 10px;
    background: #fffbeb;
    color: #92400e;
    font-size: 0.85em;
    font-weight: 600;
    white-space: nowrap;
    cursor: default;
}