:root {
    --primary: #e63946;
    --primary-dark: #c1121f;
    --secondary: #457b9d;
    --secondary-dark: #1d3557;
    --accent: #f4a261;
    --light: #f1faee;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --success: #10b981;
    --warning: #f59e0b;
    --radius: 16px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    min-height: 100vh;
}

/* ===== HEADER ===== */
header {
    background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--secondary) 50%, var(--primary) 100%);
    color: white;
    padding: 2.5rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
    animation: headerShine 8s ease-in-out infinite;
}

@keyframes headerShine {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, 20px); }
}

header h1 {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    position: relative;
}

header p {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 300;
    position: relative;
}

.flag-bar {
    height: 4px;
    background: linear-gradient(to right, var(--primary) 33%, var(--accent) 33%, var(--accent) 66%, var(--primary) 66%);
}

/* ===== NAVIGATION / UNIT GRID ===== */
#home-screen {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--gray-500);
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

/* ===== WARM UP ===== */
#warmup-screen {
    display: none;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
}

.warmup-practice-box {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.2rem 1.3rem;
    margin-bottom: 1.2rem;
}

.warmup-practice-box h3 {
    font-size: 1rem;
    color: var(--gray-800);
    margin-bottom: 0.25rem;
}

.warmup-practice-box p {
    color: var(--gray-600);
    font-size: 0.88rem;
}

.btn-warmup-start {
    border: none;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    color: #fff;
    font-weight: 700;
    padding: 0.75rem 1.2rem;
    border-radius: 999px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    white-space: nowrap;
}

.btn-warmup-start:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(69, 123, 157, 0.35);
}

.warmup-timer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--secondary-dark);
    color: #fff;
    border-radius: 10px;
    padding: 0.65rem 0.9rem;
    margin-bottom: 0.9rem;
}

.warmup-timer-label {
    font-size: 0.84rem;
    letter-spacing: 0.4px;
    text-transform: uppercase;
}

.warmup-timer-value {
    font-size: 1.3rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
}

.warmup-random-box,
.warmup-list-box {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.2rem 1.3rem;
}

.warmup-random-box {
    margin-bottom: 1rem;
}

.warmup-random-box h3,
.warmup-list-box h3 {
    color: var(--gray-800);
    margin-bottom: 0.7rem;
    font-size: 0.98rem;
}

.warmup-list-hint {
    margin-top: -0.3rem;
    margin-bottom: 0.75rem;
    font-size: 0.82rem;
    color: var(--gray-500);
}

.warmup-question-item {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr) minmax(220px, 42%);
    grid-template-areas:
        "num text translation"
        ". example example";
    align-items: start;
    column-gap: 10px;
    row-gap: 4px;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--gray-100);
    cursor: pointer;
}

.warmup-question-item:last-child {
    border-bottom: none;
}

.warmup-num {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.75rem;
    grid-area: num;
}

.warmup-text {
    grid-area: text;
    color: var(--gray-700);
    line-height: 1.45;
    font-size: 0.92rem;
}

.warmup-translation {
    display: none;
    grid-area: translation;
    justify-self: end;
    color: var(--secondary);
    font-style: italic;
    font-size: 0.88rem;
    line-height: 1.4;
    text-align: right;
}

.warmup-question-item.show-translation .warmup-translation {
    display: block;
}

.warmup-example {
    display: none;
    grid-area: example;
    margin-left: 0;
    margin-top: 0.25rem;
    color: #8b5cf6;
    font-style: italic;
    font-size: 0.88rem;
    line-height: 1.4;
}

.warmup-question-item.show-translation .warmup-example {
    display: block;
}

.units-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
}

.unit-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.unit-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.unit-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.unit-card:hover .unit-card-img {
    transform: scale(1.05);
}

.unit-card-img-wrapper {
    overflow: hidden;
    position: relative;
}

.unit-card-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--primary);
    color: white;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.warmup-card .unit-card-badge {
    background: var(--secondary-dark);
}

.unit-card-body {
    padding: 1.25rem 1.5rem 1.5rem;
}

.unit-card-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.4rem;
}

.unit-card-desc {
    color: var(--gray-500);
    font-size: 0.9rem;
    line-height: 1.5;
}

.unit-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    background: var(--gray-50);
    border-top: 1px solid var(--gray-100);
}

.unit-card-footer span {
    font-size: 0.8rem;
    color: var(--gray-500);
    display: flex;
    align-items: center;
    gap: 6px;
}

.unit-card-footer .start-label {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.85rem;
}

/* ===== PRACTICE SCREEN ===== */
#practice-screen {
    display: none;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: none;
    border: none;
    color: var(--secondary);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    padding: 0.5rem 0;
    margin-bottom: 1.5rem;
    transition: color 0.2s;
}

.back-btn:hover { color: var(--secondary-dark); }

.practice-header {
    text-align: center;
    margin-bottom: 2rem;
}

.practice-header h2 {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    color: var(--gray-900);
    margin-bottom: 0.3rem;
}

.practice-header p {
    color: var(--gray-500);
    font-size: 0.95rem;
}

/* Phase indicator */
.phase-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 2rem;
}

.phase-step {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0.6rem 1.2rem;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--gray-400);
    background: var(--gray-100);
    transition: all 0.3s;
}

.phase-step.active {
    background: var(--secondary);
    color: white;
}

.phase-step.completed {
    background: var(--success);
    color: white;
}

.phase-connector {
    width: 40px;
    height: 2px;
    background: var(--gray-200);
    transition: background 0.3s;
}

.phase-connector.active {
    background: var(--success);
}

/* Start button */
.start-area {
    text-align: center;
    padding: 3rem 1rem;
}

.btn-start {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    padding: 1rem 2.5rem;
    font-size: 1.15rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(230, 57, 70, 0.4);
}

.btn-start:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(230, 57, 70, 0.5);
}

/* Version buttons */
.version-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 0.5rem;
}

.btn-version {
    padding: 0.85rem 2rem;
    font-size: 1.05rem;
    min-width: 210px;
}

.btn-v1 {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    box-shadow: 0 4px 15px rgba(69, 123, 157, 0.4);
}

.btn-v1:hover {
    box-shadow: 0 6px 20px rgba(69, 123, 157, 0.5);
}

.btn-v2 {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    box-shadow: 0 4px 15px rgba(230, 57, 70, 0.4);
}

.btn-v2:hover {
    box-shadow: 0 6px 20px rgba(230, 57, 70, 0.5);
}

.start-hint {
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--gray-400);
}

/* Timer */
.timer-container {
    display: none;
    text-align: center;
    margin-bottom: 1.5rem;
}

.timer-ring-wrapper {
    position: relative;
    display: inline-block;
    margin-bottom: 0.5rem;
}

.timer-ring {
    width: 140px;
    height: 140px;
    transform: rotate(-90deg);
}

.timer-ring-bg {
    fill: none;
    stroke: var(--gray-200);
    stroke-width: 6;
}

.timer-ring-progress {
    fill: none;
    stroke: var(--secondary);
    stroke-width: 6;
    stroke-linecap: round;
    stroke-dasharray: 408.4;
    stroke-dashoffset: 0;
    transition: stroke-dashoffset 1s linear, stroke 0.3s;
}

.timer-ring-progress.warning {
    stroke: var(--warning);
}

.timer-ring-progress.danger {
    stroke: var(--primary);
}

.timer-ring-progress.speaking {
    stroke: var(--success);
}

.timer-ring-progress.speaking.warning {
    stroke: var(--warning);
}

.timer-ring-progress.speaking.danger {
    stroke: var(--primary);
}

.timer-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--gray-800);
    font-variant-numeric: tabular-nums;
}

.timer-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.timer-label.speaking-label {
    color: var(--success);
}

/* Questions */
.questions-box {
    display: none;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.75rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--accent);
    transition: all 0.4s ease;
}

.questions-box.small-mode {
    padding: 1.25rem;
}

.questions-box h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.questions-box.small-mode h3 {
    font-size: 0.85rem;
    margin-bottom: 0.6rem;
}

.question-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-100);
    font-size: 1.05rem;
    color: var(--gray-700);
    line-height: 1.5;
    transition: all 0.3s;
}

.questions-box.small-mode .question-item {
    font-size: 0.88rem;
    padding: 0.45rem 0;
}

.question-item:last-child {
    border-bottom: none;
}

.question-num {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
}

.questions-box.small-mode .question-num {
    width: 20px;
    height: 20px;
    font-size: 0.65rem;
}

/* Notes */
.notes-box {
    display: none;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.notes-box h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.notes-box textarea {
    width: 100%;
    min-height: 120px;
    border: 2px solid var(--gray-200);
    border-radius: 12px;
    padding: 1rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    color: var(--gray-700);
    resize: vertical;
    transition: border-color 0.3s;
    outline: none;
}

.notes-box textarea:focus {
    border-color: var(--secondary);
}

.notes-box.readonly textarea {
    background: var(--gray-50);
    cursor: default;
}

/* Recording */
.recording-box {
    display: none;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--primary);
}

.recording-box h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.rec-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.rec-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary);
    animation: recPulse 1.2s ease-in-out infinite;
}

@keyframes recPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.8); }
}

/* Playback */
.playback-box {
    display: none;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--success);
}

.playback-box h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.playback-box audio {
    width: 100%;
    margin-top: 0.5rem;
    border-radius: 10px;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 0.75rem;
    background: var(--success);
    color: white;
    border: none;
    padding: 0.5rem 1.2rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.download-btn:hover { background: #059669; }

/* Rubric */
.rubric-box {
    display: none;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.75rem;
    margin-bottom: 1.5rem;
}

.rubric-box h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.rubric-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.rubric-table thead th {
    background: var(--secondary-dark);
    color: white;
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.rubric-table tbody td {
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
    color: var(--gray-600);
    border-bottom: 1px solid var(--gray-100);
    vertical-align: top;
    line-height: 1.5;
}

.rubric-table tbody tr:last-child td {
    border-bottom: none;
}

.rubric-table tbody tr:nth-child(even) {
    background: var(--gray-50);
}

.rubric-table td:first-child {
    font-weight: 600;
    color: var(--gray-800);
    min-width: 130px;
}

/* Restart */
.restart-area {
    text-align: center;
    margin-top: 1.5rem;
}

.btn-restart {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--secondary);
    color: white;
    border: none;
    padding: 0.75rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-restart:hover {
    background: var(--secondary-dark);
    transform: translateY(-2px);
}

/* Start Speaking Button */
.start-speaking-area {
    text-align: center;
    padding: 2rem 1rem;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--success);
}

.start-speaking-hint {
    font-size: 1rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 1.25rem;
}

.btn-start-speaking {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--success), #059669);
    color: white;
    border: none;
    padding: 1rem 2.5rem;
    font-size: 1.15rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
    animation: speakBlink 1.2s ease-in-out infinite;
}

.btn-start-speaking:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.5);
    animation: none;
}

@keyframes speakBlink {
    0%, 100% {
        box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(16, 185, 129, 0.15), 0 4px 15px rgba(16, 185, 129, 0.4);
        transform: scale(1.05);
    }
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    color: var(--gray-400);
    font-size: 0.8rem;
}

/* Animations */
.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

.pulse-border {
    animation: pulseBorder 2s ease-in-out infinite;
}

@keyframes pulseBorder {
    0%, 100% { box-shadow: var(--shadow); }
    50% { box-shadow: 0 0 0 4px rgba(230, 57, 70, 0.15), var(--shadow); }
}

/* Unit info box */
.unit-info-box {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.75rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--secondary);
}

.unit-info-box h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--secondary-dark);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.unit-info-box p, .unit-info-box li {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.6;
}

.unit-info-box ul {
    padding-left: 1.2rem;
    margin-top: 0.5rem;
}

.unit-info-box li {
    margin-bottom: 0.35rem;
}

.info-section {
    margin-bottom: 1.25rem;
}

.info-section:last-child {
    margin-bottom: 0;
}

.info-section h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.rubric-pct {
    font-size: 0.75rem;
    color: var(--gray-400);
    font-weight: 400;
    display: block;
}

/* Mic permission banner */
.mic-banner {
    background: linear-gradient(135deg, #eff6ff, #dbeafe);
    border: 1px solid #93c5fd;
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 14px;
    animation: fadeIn 0.5s ease forwards;
}

.mic-banner.granted {
    background: linear-gradient(135deg, #ecfdf5, #d1fae5);
    border-color: #6ee7b7;
}

.mic-banner-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
}

.mic-banner-text {
    flex: 1;
}

.mic-banner-text p {
    font-size: 0.9rem;
    color: var(--gray-700);
    line-height: 1.5;
}

.mic-banner-text p strong {
    color: var(--gray-900);
}

.mic-banner .btn-mic {
    flex-shrink: 0;
    background: var(--secondary);
    color: white;
    border: none;
    padding: 0.55rem 1.3rem;
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.mic-banner .btn-mic:hover {
    background: var(--secondary-dark);
}

.mic-banner .btn-mic:disabled {
    background: var(--success);
    cursor: default;
}

/* Responsive */
@media (max-width: 768px) {
    header h1 { font-size: 1.8rem; }
    .units-grid { grid-template-columns: 1fr; }
    .phase-steps { gap: 0; flex-wrap: wrap; justify-content: center; }
    .phase-connector { width: 20px; }
    .timer-ring { width: 120px; height: 120px; }
    .timer-text { font-size: 1.8rem; }
    .rubric-table { font-size: 0.75rem; }
    .rubric-table thead th, .rubric-table tbody td { padding: 0.5rem 0.6rem; }
    .mic-banner { flex-direction: column; text-align: center; }
    .warmup-practice-box { flex-direction: column; align-items: flex-start; }
    .btn-warmup-start { width: 100%; }
    .warmup-question-item {
        grid-template-columns: 28px 1fr;
        grid-template-areas:
            "num text"
            ". translation"
            ". example";
    }
    .warmup-translation {
        justify-self: start;
        text-align: left;
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .units-grid { grid-template-columns: 1fr; }
    .phase-step { font-size: 0.75rem; padding: 0.5rem 0.8rem; }
}

/* ===== EXAM MINI GUIDE ===== */
.exam-guide {
    margin-top: 3rem;
    background: var(--white);
    border-radius: var(--radius);
    padding: 2rem 2.5rem;
    box-shadow: var(--shadow);
    border-left: 5px solid var(--secondary);
}

.exam-guide-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.6rem;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.exam-guide-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 1.25rem;
}

.exam-guide-badge {
    background: linear-gradient(135deg, var(--secondary-dark), var(--secondary));
    color: white;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.exam-guide-intro {
    color: var(--gray-600);
    font-size: 0.93rem;
    line-height: 1.65;
    margin-bottom: 0.8rem;
}

.exam-guide h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--gray-800);
    margin: 1.5rem 0 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.exam-guide-phase {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    background: var(--gray-50);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    margin-bottom: 1rem;
}

.exam-guide-phase-num {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    margin-top: 2px;
}

.exam-guide-phase h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 0.4rem;
}

.exam-guide-time {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--secondary);
    background: rgba(69,123,157,0.1);
    padding: 2px 10px;
    border-radius: 10px;
    margin-left: 6px;
}

.exam-guide-phase p {
    color: var(--gray-500);
    font-size: 0.88rem;
    margin-bottom: 0.5rem;
    line-height: 1.5;
}

.exam-guide-phase ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.exam-guide-phase li {
    color: var(--gray-600);
    font-size: 0.88rem;
    padding: 0.3rem 0;
    padding-left: 1.2rem;
    position: relative;
    line-height: 1.5;
    font-style: italic;
}

.exam-guide-phase li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
    font-style: normal;
}

@media (max-width: 600px) {
    .exam-guide {
        padding: 1.25rem 1.25rem;
    }
    .exam-guide-phase {
        flex-direction: column;
        gap: 0.5rem;
    }
}