:root {
    --unam-blue: #003b64;
    --unam-dark-blue: #072146;
    --unam-gold: #c59b27;
    --unam-light-gold: #f9f5e8;
    --bg-gray: #f4f6f9;
    --card-bg: #ffffff;
    --text-dark: #333333;
    --text-muted: #666666;
    --border-color: #dddddd;
    --success-green: #2e7d32;
    --secondary-blue: #0076a8;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-gray);
    color: var(--text-dark);
    line-height: 1.6;
}

/* INSTITUTIONAL HEADER */
.inst-header {
    background-color: var(--unam-dark-blue);
    border-bottom: 4px solid var(--unam-gold);
    color: white;
    padding: 15px 30px;
}

.header-container {
    display: flex;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.unam-title {
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: 2px;
    border-right: 1px solid rgba(255, 255, 255, 0.3);
    padding-right: 15px;
    margin-right: 15px;
}

.cch-title {
    font-weight: 400;
    font-size: 1rem;
    flex-grow: 1;
}

.mediateca-badge {
    background-color: var(--unam-gold);
    color: var(--unam-dark-blue);
    font-weight: bold;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.85rem;
}

/* INSTITUTIONAL FOOTER */
.site-footer {
    background-color: var(--unam-dark-blue);
    border-top: 4px solid var(--unam-gold);
    color: white;
    padding: 20px 30px;
    margin-top: 30px;
    text-align: center;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    font-size: 0.85rem;
}

.footer-container p {
    margin: 4px 0;
}

/* WEB LAYOUT WITH SIDEBAR */
.web-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    max-width: 1350px;
    margin: 20px auto;
    gap: 20px;
    padding: 0 15px;
}

/* SIDEBAR ROUTE MAP */
.sidebar {
    background-color: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    padding: 20px;
    height: fit-content;
}

.back-to-index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 6px;
    text-decoration: none;
    color: var(--secondary-blue);
    background-color: var(--bg-gray);
    font-size: 1rem;
    margin-bottom: 15px;
    transition: background-color 0.2s;
}

.back-to-index:hover {
    background-color: var(--unam-light-gold);
}

.sidebar-title {
    color: var(--unam-blue);
    font-size: 1.15rem;
    margin-bottom: 5px;
}

.sidebar-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.route-nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.route-item {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-dark);
    padding: 10px;
    border-radius: 6px;
    transition: background-color 0.2s;
    font-size: 0.9rem;
}

.route-item:hover:not(.disabled) {
    background-color: var(--bg-gray);
}

.route-item.active {
    background-color: var(--unam-light-gold);
    font-weight: bold;
    color: var(--unam-dark-blue);
    border-left: 4px solid var(--unam-gold);
}

.route-item.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: var(--border-color);
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-right: 12px;
    font-weight: bold;
}

.badge.active {
    background-color: var(--unam-gold);
    color: var(--unam-dark-blue);
}

.sidebar-footer {
    margin-top: 30px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* MAIN CONTENT */
.main-content {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

/* HEADER SECTION */
.ficha-header {
    background-color: var(--card-bg);
    border-radius: 8px;
    border-top: 5px solid var(--unam-blue);
    padding: 30px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.level-tag {
    background-color: var(--unam-light-gold);
    color: var(--unam-dark-blue);
    border: 1px solid var(--unam-gold);
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
}

.ficha-header h1 {
    color: var(--unam-dark-blue);
    margin-top: 15px;
    margin-bottom: 20px;
    font-size: 1.8rem;
}

.metadata-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 15px;
    margin-bottom: 25px;
}

.meta-card {
    background-color: var(--bg-gray);
    padding: 12px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
}

.meta-card i {
    color: var(--secondary-blue);
    font-size: 1.1rem;
}

.goal-box {
    background-color: #eef7fc;
    border-left: 4px solid var(--secondary-blue);
    padding: 15px;
    border-radius: 0 6px 6px 0;
}

.goal-box h3 {
    color: var(--secondary-blue);
    font-size: 1rem;
    margin-bottom: 5px;
}

/* GENERAL ACTIVITY SECTIONS */
.activity-section h2 {
    color: var(--unam-dark-blue);
    font-size: 1.4rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.section-number {
    background-color: var(--unam-blue);
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    font-size: 1rem;
}

/* GENERAL CARD LAYOUT */
.card {
    background-color: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    padding: 25px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.question-text {
    font-weight: bold;
    margin-bottom: 15px;
}

.intro-questions {
    list-style: none;
    margin-bottom: 20px;
    padding-left: 10px;
}

.intro-questions li {
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.intro-questions li i {
    color: var(--unam-gold);
}

.input-container {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px dashed var(--border-color);
}

/* SENTENCE BUILDER WRITING EXERCISE */
.sentence-builder {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
    background-color: var(--bg-gray);
    padding: 15px;
    border-radius: 6px;
    border-left: 3px solid var(--unam-gold);
}

.inline-input {
    border: none;
    border-bottom: 2px solid var(--text-muted);
    background-color: transparent;
    padding: 3px 8px;
    font-size: 1rem;
    color: var(--unam-blue);
    font-weight: bold;
    outline: none;
    transition: border-bottom-color 0.2s;
    min-width: 120px;
    text-align: center;
}

.inline-input:focus {
    border-bottom-color: var(--unam-blue);
}

/* ACTION BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: bold;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: background-color 0.2s, transform 0.1s;
}

.btn:active {
    transform: scale(0.98);
}

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

.btn-primary:hover {
    background-color: var(--unam-dark-blue);
}

.btn-secondary {
    background-color: var(--unam-gold);
    color: var(--unam-dark-blue);
}

.btn-secondary:hover {
    background-color: #b08a1f;
}

.action-bar {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    background-color: var(--bg-gray);
    padding: 15px;
    border-radius: 6px;
    margin-top: 15px;
}

.score-keeper {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: bold;
}

.score-input {
    width: 50px;
    padding: 5px;
    text-align: center;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    outline: none;
}

.score-input-large {
    width: 150px;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    outline: none;
}

/* BRAIN / THINK SECTIONS */
.think-box {
    margin-top: 25px;
    background-color: #fffdf5;
    border: 1px solid #f2e3be;
    border-radius: 6px;
    padding: 15px;
}

.think-box h4 {
    color: #c59b27;
    margin-bottom: 10px;
}

.three-inputs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin-top: 12px;
}

.form-input {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    outline: none;
    font-size: 0.95rem;
}

.form-input:focus {
    border-color: var(--secondary-blue);
}

/* GRAMMAR GUIDE DISPLAY */
.grammar-accordion {
    margin-bottom: 15px;
}

.grammar-header {
    background-color: var(--unam-blue);
    color: white;
    padding: 15px 20px;
    border-radius: 8px 8px 0 0;
}

.grammar-content {
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 8px 8px;
    padding: 20px;
}

.rules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 20px;
}

.rule-card {
    background-color: var(--bg-gray);
    padding: 15px;
    border-radius: 6px;
    border-top: 3px solid var(--unam-gold);
}

.rule-card h5 {
    font-size: 1rem;
    color: var(--unam-dark-blue);
    margin-bottom: 8px;
}

.formula {
    background-color: rgba(0,0,0,0.05);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-family: monospace;
    margin-bottom: 10px;
    display: inline-block;
}

.rule-card ul {
    list-style-position: inside;
    font-size: 0.9rem;
}

.rule-card li {
    margin-bottom: 4px;
}

/* GRAMMAR TABLES */
.table-responsive {
    overflow-x: auto;
    margin-top: 15px;
}

.grammar-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.grammar-table th, .grammar-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.grammar-table th {
    background-color: var(--bg-gray);
    color: var(--unam-dark-blue);
    font-weight: bold;
}

.table-input {
    width: 100%;
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-weight: bold;
    color: var(--secondary-blue);
    outline: none;
}

.table-input:focus {
    border-color: var(--secondary-blue);
    background-color: #f0f7fc;
}

/* SENTENCES FILL-IN-THE-BLANKS LIST */
.sentences-list {
    margin-left: 20px;
    margin-bottom: 25px;
}

.sentences-list li {
    margin-bottom: 15px;
    font-size: 1rem;
}

.inline-sentence-input {
    border: none;
    border-bottom: 2px dashed var(--text-muted);
    padding: 2px 5px;
    font-size: 1rem;
    font-weight: bold;
    color: var(--unam-blue);
    text-align: center;
    width: 130px;
    outline: none;
}

.inline-sentence-input:focus {
    border-bottom-style: solid;
    border-bottom-color: var(--unam-blue);
}

.own-sentences {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px dashed var(--border-color);
}

.own-sentences h4 {
    margin-bottom: 10px;
    color: var(--unam-dark-blue);
}

.form-textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    outline: none;
    font-size: 1rem;
    resize: vertical;
}

.speaking-rules-dashboard {
            background-color: #eef7fc;
            border-left: 5px solid var(--secondary-blue);
            padding: 20px;
            border-radius: 0 8px 8px 0;
            margin-bottom: 25px;
        }

        .speaking-rules-dashboard h4 {
            color: var(--secondary-blue);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .speaking-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .speaking-sub-card {
            background-color: white;
            border: 1px solid var(--border-muted);
            border-radius: 6px;
            padding: 15px;
        }

        .speaking-sub-card h5 {
            color: var(--unam-dark-blue);
            border-bottom: 1px solid var(--unam-gold);
            padding-bottom: 5px;
            margin-bottom: 10px;
            font-size: 0.95rem;
        }

        .speaking-includes-list { list-style: none; }
        .speaking-includes-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            margin-bottom: 8px;
            font-weight: bold;
        }

        .speaking-includes-list li i { color: var(--success-green); }

        .sentence-frames-list { list-style: none; }
        .sentence-frames-list li {
            font-family: monospace;
            font-size: 0.9rem;
            background-color: var(--bg-gray);
            padding: 4px 8px;
            border-radius: 4px;
            margin-bottom: 6px;
            color: var(--unam-blue);
            font-weight: bold;
        }

        /* PESTAÑAS INTERACTIVAS CSS */
        .speaking-tabs-container {
            background-color: var(--card-bg);
            border-radius: 8px;
            border: 1px solid var(--border-muted);
            overflow: hidden;
            margin-top: 15px;
        }

        input[name="speaking-tabs"] { display: none; }

        .tabs-headers {
            display: flex;
            background-color: var(--bg-gray);
            border-bottom: 1px solid var(--border-muted);
        }

        .tab-label {
            flex: 1;
            text-align: center;
            padding: 15px;
            font-weight: bold;
            cursor: pointer;
            transition: background-color 0.2s, color 0.2s;
            user-select: none;
            color: var(--text-muted);
            text-decoration: none;
        }

        .tab-label:hover { background-color: rgba(0,0,0,0.02); }
        .tabs-content { padding: 25px; }
        .content-panel { display: none; }

        #tab-chatbot:checked ~ .tabs-headers .chatbot-label,
        #tab-record:checked ~ .tabs-headers .record-label {
            background-color: var(--card-bg);
            color: var(--unam-blue);
            border-bottom: 3px solid var(--unam-blue);
        }

        #tab-chatbot:checked ~ .tabs-content .chatbot-panel,
        #tab-record:checked ~ .tabs-content .record-panel {
            display: block;
        }

        .tab-label.active-tab {
            background-color: var(--card-bg);
            color: var(--unam-blue);
            border-bottom: 3px solid var(--unam-blue);
        }

        .content-panel.active-panel {
            display: block;
        }

        .prompt-box {
            background-color: #f8f9fa;
            border: 1px solid #e9ecef;
            border-radius: 6px;
            padding: 20px;
            margin: 20px 0;
            position: relative;
        }

        .prompt-box code {
            display: block;
            font-size: 0.95rem;
            line-height: 1.5;
            color: #495057;
            margin-bottom: 15px;
            padding-right: 130px;
        }

        .btn-copy {
            position: absolute;
            right: 15px;
            top: 50%;
            transform: translateY(-50%);
            background-color: var(--unam-blue);
            color: white;
            font-size: 0.85rem;
            padding: 8px 15px;
        }


/* CHATBOT PANELS */
.prompt-box {
    background-color: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 6px;
    padding: 20px;
    margin: 20px 0;
    position: relative;
}

.prompt-box code {
    display: block;
    font-size: 0.95rem;
    line-height: 1.5;
    color: #495057;
    margin-bottom: 15px;
    padding-right: 130px;
}

.btn-copy {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--unam-blue);
    color: white;
    font-size: 0.85rem;
    padding: 8px 15px;
}

.guided-steps {
    background-color: var(--unam-light-gold);
    border-radius: 6px;
    padding: 15px;
}

.guided-steps h5 {
    color: var(--unam-dark-blue);
    margin-bottom: 8px;
}

.guided-steps ul {
    margin-left: 20px;
    margin-top: 5px;
}

/* RECORDING SYSTEM */
.model-box {
    background-color: #f1fcf1;
    border-left: 4px solid var(--success-green);
    padding: 15px;
    border-radius: 0 6px 6px 0;
    margin-bottom: 25px;
}

.model-box h5 {
    color: var(--success-green);
    margin-bottom: 10px;
}

.dialogue p {
    margin-bottom: 5px;
}

.speaking-setup-grid {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 15px;
    margin-bottom: 25px;
}

.setup-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.challenge-box {
    background-color: var(--unam-light-gold);
    border: 1px solid var(--unam-gold);
    border-radius: 6px;
    padding: 20px;
}

.challenge-box h5 {
    color: var(--unam-dark-blue);
    margin-bottom: 10px;
}

.checklist-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    margin-top: 12px;
}

.check-item {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 0.95rem;
}

.check-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--unam-blue);
}

/* SELF-ASSESSMENT */
.self-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 25px;
}

.self-table th, .self-table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
}

.self-table th {
    background-color: var(--unam-blue);
    color: white;
}

.text-center {
    text-align: center;
}

.self-table input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--unam-gold);
    cursor: pointer;
}

.next-step-reflection {
    margin-top: 25px;
}

.reflection-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-top: 15px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: bold;
}

/* SUBMIT BUTTON SECTION */
.submit-section {
    display: flex;
    justify-content: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.btn-submit {
    background-color: var(--success-green);
    color: white;
    font-size: 1.1rem;
    padding: 12px 30px;
    box-shadow: 0 4px 6px rgba(46,125,50,0.2);
}

.btn-submit:hover {
    background-color: #1b5e20;
}

/* RESPONSIVE DESIGN */
@media (max-width: 900px) {
    .web-layout {
        grid-template-columns: 1fr;
    }
    .setup-row {
        grid-template-columns: 1fr;
    }
    .reflection-inputs {
        grid-template-columns: 1fr;
    }
    .btn-copy {
        position: static;
        transform: none;
        margin-top: 10px;
        display: block;
        width: 100%;
        text-align: center;
    }
    .prompt-box code {
        padding-right: 0;
    }
}

.quiz-item {
    transition: all 0.3s ease;
    border-radius: 4px;
    padding: 6px 8px;
    margin-bottom: 6px;
}

.quiz-item:last-child {
    margin-bottom: 0;
}

.quiz-item.correct {
    background-color: #eaf6ea;
    border: 1px solid var(--success-green);
}

.quiz-item.incorrect {
    background-color: #fdecea;
    border: 1px solid #c62828;
}

.quiz-feedback-icon {
    display: block;
    margin-top: 6px;
    font-size: 0.85rem;
    font-weight: bold;
}

.quiz-feedback-icon.correct-icon {
    color: var(--success-green);
}

.quiz-feedback-icon.incorrect-icon {
    color: #c62828;
}

/* Clases de retroalimentación en la tarjeta de resultados */
#quiz-result-card {
    border: 2px solid var(--unam-gold);
    background-color: #fffdf9;
}

/* GRAMMAR CHALLENGE QUIZ (Activity 4) */
.bg-gold-tint {
    background-color: var(--unam-light-gold);
}

.challenge-desc {
    color: var(--text-muted);
}

.quiz-grid-system {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.quiz-block {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 15px;
}

.quiz-block h4 {
    color: var(--unam-dark-blue);
    border-bottom: 2px solid var(--unam-gold);
    padding-bottom: 6px;
    margin-bottom: 8px;
    font-size: 1rem;
}

.quiz-q {
    font-weight: bold;
    margin-bottom: 4px;
    font-size: 0.95rem;
}

.options-flex {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.radio-label:hover {
    background-color: var(--bg-gray);
}

.radio-label input[type="radio"] {
    width: 16px;
    height: 16px;
    accent-color: var(--unam-blue);
    cursor: pointer;
}

.quiz-action-area {
    padding-top: 10px;
}

.score-summary-box {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    padding: 15px 20px;
    border-radius: 8px;
}

.score-display {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--unam-dark-blue);
}

.score-input-main {
    border-radius: 4px;
    font-size: 1.2rem;
}

.score-tiers p {
    margin: 0;
    font-size: 0.95rem;
}

.tier-excellent {
    color: var(--success-green);
    font-weight: bold;
}

.tier-good {
    color: var(--secondary-blue);
    font-weight: bold;
}

.tier-review {
    color: #c62828;
    font-weight: bold;
}

.inline-score-result {
    margin-left: 12px;
    font-weight: bold;
    font-size: 0.95rem;
    vertical-align: middle;
    color: var(--unam-dark-blue);
}

/* ACTIVITY 2 - READING & HIGHLIGHTING (interactive dialogue) */
.highlight-counter {
    background-color: var(--bg-gray);
    color: var(--unam-dark-blue);
    font-weight: bold;
    padding: 10px 15px;
    border-radius: 6px;
    margin-bottom: 15px;
}

.dialogue-box {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.dialogue-line {
    line-height: 1.6;
}

.interactive-phrase {
    cursor: pointer;
    text-decoration: underline;
    text-decoration-style: dashed;
    text-decoration-color: var(--secondary-blue);
    text-underline-offset: 3px;
    transition: background-color 0.2s, color 0.2s;
    border-radius: 3px;
    padding: 0 2px;
}

.interactive-phrase:hover {
    background-color: var(--bg-gray);
}

.interactive-phrase.highlighted {
    background-color: var(--unam-light-gold);
    text-decoration-style: solid;
    text-decoration-color: var(--unam-gold);
    color: var(--unam-dark-blue);
    font-weight: bold;
}