/* ============================================================
   MINH DUONG MATH — Luyện Thi THPT
   ============================================================ */

/* ── Urgency Bar ─────────────────────────────────────────────── */
.urgency-bar {
    background: var(--primary-dark);
    color: var(--white);
    padding: 12px clamp(1rem, 4%, 2.5rem);
    text-align: center;
}

.urgency-bar__inner {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 24px;
    align-items: center;
    justify-content: center;
    max-width: 860px;
    margin: 0 auto;
}

.urgency-bar__label {
    font-size: 0.625rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--gold);
    font-family: 'Be Vietnam Pro', sans-serif;
}

.urgency-bar__value {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    font-weight: 600;
    color: var(--white);
}

.urgency-bar__sep {
    color: rgba(255,255,255,0.3);
    font-size: 18px;
    line-height: 1;
}

/* ── Stakes Section ──────────────────────────────────────────── */
.stakes-section {
    background: var(--white);
    padding: clamp(2.5rem, 7vw, 4rem) clamp(1rem, 5%, 2.5rem);
    text-align: center;
}

.stakes-section__lead {
    max-width: 640px;
    margin: 0 auto clamp(2rem, 5vw, 3rem);
    font-size: clamp(0.9375rem, 2vw, 1.0625rem);
    color: var(--text-gray);
    line-height: 1.8;
}

.score-parts-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2px;
    max-width: 780px;
    margin: 0 auto;
}

@media (min-width: 560px) {
    .score-parts-grid { grid-template-columns: repeat(3, 1fr); }
}

.score-block {
    background: var(--cream);
    border: 1px solid var(--border);
    padding: clamp(1.25rem, 3vw, 1.75rem);
    text-align: center;
}

.score-block:first-child { border-radius: var(--radius-md) 0 0 var(--radius-md); }
.score-block:last-child  { border-radius: 0 var(--radius-md) var(--radius-md) 0; }

@media (max-width: 559px) {
    .score-block { border-radius: 0 !important; }
    .score-block:first-child { border-radius: var(--radius-md) var(--radius-md) 0 0 !important; }
    .score-block:last-child  { border-radius: 0 0 var(--radius-md) var(--radius-md) !important; }
}

.score-block--featured {
    background: var(--primary-pale);
    border-color: var(--primary-light);
    position: relative;
}

.score-block__part {
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-gray);
    margin-bottom: 8px;
    font-family: 'Be Vietnam Pro', sans-serif;
}

.score-block__name {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1rem, 2.2vw, 1.25rem);
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.score-block__formula {
    font-size: clamp(0.75rem, 1.5vw, 0.8125rem);
    color: var(--text-gray);
    margin-bottom: 10px;
    font-family: 'Be Vietnam Pro', sans-serif;
}

.score-block__score {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 5vw, 2.75rem);
    font-weight: 700;
    color: var(--primary-dark);
    line-height: 1;
    display: block;
}

.score-block--featured .score-block__score { color: var(--primary-dark); }

.score-block__note {
    font-size: 0.7rem;
    color: var(--primary-light);
    margin-top: 8px;
    line-height: 1.5;
    font-family: 'Be Vietnam Pro', sans-serif;
}

/* ── Value Props ─────────────────────────────────────────────── */
.value-section {
    background: var(--cream);
    padding: clamp(2.5rem, 7vw, 4rem) clamp(1rem, 5%, 2.5rem);
}

.value-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: clamp(1rem, 2.5vw, 1.25rem);
    max-width: 900px;
    margin: clamp(1.5rem, 4vw, 2rem) auto 0;
}

@media (min-width: 560px) { .value-grid { grid-template-columns: repeat(3, 1fr); } }

.value-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: clamp(1.5rem, 4%, 2rem);
    position: relative;
    overflow: hidden;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
}

.value-card:nth-child(1)::before { background: var(--primary-dark); }
.value-card:nth-child(2)::before { background: var(--primary-light); }
.value-card:nth-child(3)::before { background: var(--gold); }

.value-card__icon {
    font-size: 1.75rem;
    margin-bottom: 14px;
    display: block;
}

.value-card__title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1rem, 2vw, 1.2rem);
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.value-card__desc {
    font-size: clamp(0.8125rem, 1.6vw, 0.875rem);
    color: var(--text-gray);
    line-height: 1.75;
    margin-bottom: 14px;
}

.value-card__link {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--primary-light);
    text-decoration: none;
    transition: color var(--transition);
}

.value-card__link:hover { color: var(--primary-dark); }

/* ── Program Section ─────────────────────────────────────────── */
.program-section {
    background: var(--white);
    padding: clamp(2.5rem, 7vw, 4rem) clamp(1rem, 5%, 2.5rem);
}

.program-section__inner {
    max-width: 860px;
    margin: 0 auto;
}

.program-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: clamp(1.5rem, 4vw, 2rem);
}

.program-table th {
    background: var(--primary-dark);
    color: var(--white);
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 12px 16px;
    text-align: left;
}

.program-table th:first-child { border-radius: var(--radius-md) 0 0 0; }
.program-table th:last-child  { border-radius: 0 var(--radius-md) 0 0; }

.program-table td {
    padding: 12px 16px;
    font-size: clamp(0.8125rem, 1.6vw, 0.875rem);
    color: var(--text-gray);
    border-bottom: 1px solid var(--border);
    vertical-align: top;
    line-height: 1.6;
    font-family: 'Be Vietnam Pro', sans-serif;
}

.program-table tr:last-child td { border-bottom: none; }
.program-table tr:nth-child(even) td { background: var(--cream); }

.program-table td:first-child {
    font-weight: 600;
    color: var(--text-dark);
    white-space: nowrap;
}

@media (max-width: 599px) {
    .program-table thead { display: none; }
    .program-table tr { display: block; margin-bottom: 8px; border: 1px solid var(--border); border-radius: var(--radius-md); }
    .program-table td { display: block; border-bottom: 1px solid var(--border); }
    .program-table td:last-child { border-bottom: none; }
    .program-table td::before { content: attr(data-label); display: block; font-size: 0.625rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-gray); margin-bottom: 4px; }
}

/* ── Strategy Preview ────────────────────────────────────────── */
.strategy-preview {
    background: var(--primary-pale);
    padding: clamp(2.5rem, 7vw, 4rem) clamp(1rem, 5%, 2.5rem);
    text-align: center;
}

.strategy-steps {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(0.75rem, 2vw, 1rem);
    justify-content: center;
    max-width: 860px;
    margin: clamp(1.5rem, 4vw, 2rem) auto clamp(2rem, 5vw, 2.5rem);
}

.strategy-step {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1 1 180px;
    text-align: left;
}

.strategy-step__num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary-dark);
    color: var(--white);
    font-family: 'Playfair Display', serif;
    font-size: 0.9rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.strategy-step__text {
    font-size: clamp(0.75rem, 1.5vw, 0.8125rem);
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.35;
    font-family: 'Be Vietnam Pro', sans-serif;
}

.strategy-step__sub {
    font-size: 0.6875rem;
    color: var(--text-gray);
    font-weight: 400;
    display: block;
    margin-top: 2px;
}

/* ── Materials Section ───────────────────────────────────────── */
.materials-section {
    background: var(--cream);
    padding: clamp(2.5rem, 7vw, 4rem) clamp(1rem, 5%, 2.5rem);
}

.materials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    max-width: 860px;
    margin: clamp(1.5rem, 4vw, 2rem) auto 0;
}

@media (min-width: 480px) { .materials-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 720px) { .materials-grid { grid-template-columns: repeat(3, 1fr); } }

.material-card {
    background: var(--white);
    border: none;
    border-radius: 0;
    padding: clamp(1.125rem, 3%, 1.5rem);
    display: flex;
    align-items: flex-start;
    gap: 12px;
    text-decoration: none;
    color: inherit;
    transition: background-color var(--transition);
}

.material-card:hover {
    background: var(--primary-pale);
}

.material-card__icon {
    width: 36px;
    height: 36px;
    background: var(--primary-pale);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-dark);
    flex-shrink: 0;
}

.material-card__name {
    font-size: clamp(0.8125rem, 1.7vw, 0.9375rem);
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 3px;
    font-family: 'Be Vietnam Pro', sans-serif;
}

.material-card__meta {
    font-size: 0.6875rem;
    color: var(--text-gray);
    font-family: 'Be Vietnam Pro', sans-serif;
}

/* ── Pricing + CTA ───────────────────────────────────────────── */
.thpt-cta {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
    color: var(--white);
    padding: clamp(2.5rem, 8vw, 4.5rem) clamp(1rem, 5%, 2.5rem);
    text-align: center;
}

.thpt-cta h2 { color: var(--white); margin-bottom: 16px; }

.thpt-cta__pricing {
    display: inline-flex;
    align-items: baseline;
    gap: 6px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: var(--radius-pill);
    padding: 10px 24px;
    margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
}

.thpt-cta__amount {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    color: var(--gold);
}

.thpt-cta__unit {
    font-size: clamp(0.875rem, 1.8vw, 1rem);
    color: rgba(255,255,255,0.8);
}

.thpt-cta__detail {
    font-size: clamp(0.75rem, 1.5vw, 0.875rem);
    color: rgba(255,255,255,0.65);
    margin: -10px 0 clamp(1.5rem, 4vw, 2rem);
    display: block;
}

.thpt-cta__btns {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}