/* ========================================
   THƯ VIỆN SÁCH NÓI - SALES PAGE
   Font: Be Vietnam Pro (toàn trang)
   Color Palette: Mệnh Đại Hải Thủy
   - Navy Deep (Thủy chủ): #0A2540, #0D1B2A
   - Ocean Blue (Thủy): #1E3A8A, #2563EB
   - Silver/White (Kim sinh Thủy): #E5E7EB, #F8FAFC
   - Gold accent (điểm nhấn may mắn): #F59E0B, #FBBF24
   ======================================== */

:root {
    --navy-deep: #0A2540;
    --navy-darker: #061629;
    --ocean-blue: #1E3A8A;
    --ocean-bright: #2563EB;
    --sky-blue: #3B82F6;
    --silver: #E5E7EB;
    --silver-light: #F8FAFC;
    --white: #FFFFFF;
    --gold: #F59E0B;
    --gold-light: #FBBF24;
    --gold-dark: #D97706;
    --text-dark: #0F172A;
    --text-medium: #475569;
    --text-light: #94A3B8;
    --border-light: #E2E8F0;
    --shadow-sm: 0 2px 8px rgba(10, 37, 64, 0.08);
    --shadow-md: 0 8px 24px rgba(10, 37, 64, 0.12);
    --shadow-lg: 0 16px 48px rgba(10, 37, 64, 0.18);
    --shadow-gold: 0 8px 24px rgba(245, 158, 11, 0.35);
    --gradient-navy: linear-gradient(135deg, #0A2540 0%, #1E3A8A 100%);
    --gradient-ocean: linear-gradient(135deg, #1E3A8A 0%, #2563EB 50%, #3B82F6 100%);
    --gradient-gold: linear-gradient(135deg, #F59E0B 0%, #FBBF24 100%);
    --gradient-silver: linear-gradient(135deg, #F8FAFC 0%, #E5E7EB 100%);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

/* ===== FONT BE VIETNAM PRO TOÀN TRANG ===== */
body,
button,
input,
select,
textarea,
h1, h2, h3, h4, h5, h6,
p, span, a, li, div {
    font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-dark);
    background: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a { text-decoration: none; color: inherit; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-narrow {
    max-width: 850px;
}

/* ============== TOP BAR ============== */
.top-bar {
    background: var(--gradient-gold);
    color: var(--navy-darker);
    padding: 10px 0;
    text-align: center;
    font-weight: 600;
    font-size: 14px;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.top-bar p {
    margin: 0;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
}

.top-bar i { margin-right: 2px; }

.countdown-inline {
    background: var(--navy-darker);
    color: var(--gold-light);
    padding: 3px 10px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-weight: 700;
    margin-left: 4px;
    white-space: nowrap;
}

/* ============== BUTTONS ============== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 30px;
    border-radius: 10px;
    font-weight: 700;
    font-size: 15px;
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    line-height: 1.2;
    white-space: nowrap;
}

.btn-large {
    padding: 17px 36px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
    white-space: normal;
}

.btn-primary {
    background: var(--gradient-ocean);
    color: var(--white);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(37, 99, 235, 0.5);
}

.btn-gold {
    background: var(--gradient-gold);
    color: var(--navy-darker);
    box-shadow: var(--shadow-gold);
}

.btn-gold:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 32px rgba(245, 158, 11, 0.55);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.08);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(8px);
}

.btn-outline:hover {
    background: var(--white);
    color: var(--navy-deep);
    border-color: var(--white);
    transform: translateY(-3px);
}

/* ============== HERO ============== */
.hero {
    position: relative;
    color: var(--white);
    padding: 90px 0 110px;
    overflow: hidden;
    isolation: isolate;
    min-height: 600px;
    display: flex;
    align-items: center;
}

/* Hero background image */
.hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('../images/audio-wave.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -2;
}

/* Lớp phủ tối để chữ nổi bật */
.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(120deg, rgba(6, 22, 41, 0.92) 0%, rgba(10, 37, 64, 0.85) 45%, rgba(30, 58, 138, 0.65) 100%),
        radial-gradient(circle at 80% 20%, rgba(245, 158, 11, 0.18) 0%, transparent 55%),
        radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.25) 0%, transparent 55%);
    z-index: -1;
}

.hero-container {
    position: relative;
    z-index: 1;
    width: 100%;
}

.hero-content {
    max-width: 820px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(245, 158, 11, 0.18);
    color: var(--gold-light);
    padding: 9px 20px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 28px;
    border: 1px solid rgba(245, 158, 11, 0.35);
    backdrop-filter: blur(6px);
}

.hero-title {
    font-size: clamp(1.9rem, 4.8vw, 3.4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 22px;
    letter-spacing: -0.5px;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.highlight {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

/* Hero keyword "mở khóa giàu sang" - nổi bật để chốt sales */
.hero-keyword {
    display: inline-block;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    position: relative;
    padding: 0 2px;
    text-shadow: 0 0 30px rgba(245, 158, 11, 0.4);
}

.hero-keyword::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2px;
    height: 3px;
    background: var(--gradient-gold);
    border-radius: 2px;
    opacity: 0.85;
    box-shadow: 0 0 12px rgba(245, 158, 11, 0.6);
}

.highlight-blue {
    background: var(--gradient-ocean);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.hero-subtitle {
    font-size: clamp(15px, 2vw, 18px);
    color: var(--gold-light);
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: 0.3px;
}

.hero-desc {
    font-size: clamp(15px, 1.8vw, 17px);
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.92);
    margin: 0 auto 36px;
    max-width: 620px;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

.hero-cta-group {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 44px;
}

.hero-trust {
    display: flex;
    gap: 36px;
    flex-wrap: wrap;
    justify-content: center;
    padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.18);
    max-width: 700px;
    margin: 0 auto;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
}

.trust-item i {
    color: var(--gold-light);
    font-size: 22px;
}

.trust-item strong {
    color: var(--white);
    font-size: 18px;
    font-weight: 800;
}

/* ============== SECTIONS ============== */
.section {
    padding: 90px 0;
    position: relative;
}

.section-light {
    background: var(--silver-light);
}

.section-dark {
    background: var(--navy-deep);
    color: var(--white);
}

.section-gradient {
    background: linear-gradient(180deg, var(--silver-light) 0%, #DBEAFE 100%);
}

.section-header {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    background: rgba(37, 99, 235, 0.1);
    color: var(--ocean-bright);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tag-light {
    background: rgba(245, 158, 11, 0.18);
    color: var(--gold-light);
}

.section-title {
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 16px;
    letter-spacing: -0.3px;
}

.section-subtitle {
    font-size: clamp(15px, 1.8vw, 17px);
    color: var(--text-medium);
    line-height: 1.7;
}

.section-dark .section-subtitle {
    color: rgba(255, 255, 255, 0.78);
}

/* ============== AUDIENCE ============== */
.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
}

.audience-card {
    background: var(--white);
    padding: 36px 26px;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.audience-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: var(--ocean-bright);
}

.audience-icon {
    width: 76px;
    height: 76px;
    margin: 0 auto 20px;
    background: var(--gradient-ocean);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 30px;
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.audience-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--navy-deep);
    line-height: 1.4;
}

.audience-card p {
    color: var(--text-medium);
    font-size: 15px;
}

/* ============== PROBLEM ============== */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 18px;
}

.problem-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 26px 22px;
    border-radius: 14px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.problem-card:hover {
    background: rgba(245, 158, 11, 0.08);
    border-color: rgba(245, 158, 11, 0.3);
    transform: translateY(-4px);
}

.problem-icon {
    color: var(--gold-light);
    font-size: 26px;
    flex-shrink: 0;
    margin-top: 2px;
}

.problem-card p {
    font-size: 14.5px;
    color: rgba(255, 255, 255, 0.92);
    line-height: 1.6;
    margin: 0;
    flex: 1;
}

.problem-card.problem-result {
    grid-column: 1 / -1;
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.4);
    align-items: center;
}

/* ============== SOLUTION ============== */
.solution-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
    margin-bottom: 60px;
}

.solution-item {
    display: flex;
    gap: 20px;
    margin-bottom: 32px;
    align-items: flex-start;
}

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

.solution-num {
    width: 54px;
    height: 54px;
    background: var(--gradient-ocean);
    color: var(--white);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 17px;
    flex-shrink: 0;
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.3);
}

.solution-body {
    flex: 1;
    min-width: 0;
}

.solution-item h3 {
    font-size: 19px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--navy-deep);
    line-height: 1.4;
}

.solution-item p {
    color: var(--text-medium);
    font-size: 15px;
}

.solution-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.solution-image img {
    width: 100%;
    transition: transform 0.6s ease;
}

.solution-image:hover img {
    transform: scale(1.05);
}

.plan-box {
    background: var(--white);
    padding: 38px 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    border: 2px solid rgba(37, 99, 235, 0.15);
}

.plan-title {
    font-size: 21px;
    margin-bottom: 26px;
    color: var(--navy-deep);
    text-align: center;
    line-height: 1.4;
}

.plan-title i {
    color: var(--gold);
    margin-right: 10px;
}

.plan-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
}

.plan-day {
    padding: 20px;
    background: var(--gradient-silver);
    border-radius: 12px;
    border-left: 4px solid var(--ocean-bright);
}

.plan-day-num {
    display: inline-block;
    background: var(--ocean-bright);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 10px;
}

.plan-day p {
    font-size: 14px;
    color: var(--text-dark);
    margin: 0;
    font-weight: 500;
    line-height: 1.5;
}

/* ============== BOOKS SHOWCASE ============== */
.books-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
}

.book-shelf {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    background: var(--white);
    transition: all 0.4s ease;
}

.book-shelf:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.book-shelf img {
    width: 100%;
    aspect-ratio: 3/2;
    object-fit: cover;
}

.book-shelf-caption {
    padding: 16px;
    text-align: center;
    font-weight: 600;
    color: var(--navy-deep);
    background: var(--gradient-silver);
    font-size: 15px;
}

/* ============== TABS ============== */
.tabs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 40px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.tab-btn {
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    line-height: 1.3;
    text-align: center;
}

.tab-btn span {
    overflow: hidden;
    text-overflow: ellipsis;
}

.tab-btn:hover {
    background: rgba(245, 158, 11, 0.15);
    color: var(--gold-light);
    border-color: rgba(245, 158, 11, 0.4);
}

.tab-btn.active {
    background: var(--gradient-gold);
    color: var(--navy-darker);
    border-color: transparent;
    box-shadow: var(--shadow-gold);
}

.tab-content {
    display: none;
    background: rgba(255, 255, 255, 0.04);
    padding: 36px 30px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.tab-title {
    font-size: 21px;
    color: var(--gold-light);
    margin-bottom: 24px;
    text-align: center;
    line-height: 1.4;
}

.book-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 10px;
}

.book-list li {
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 8px;
    color: rgba(255, 255, 255, 0.92);
    font-size: 14px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
    line-height: 1.5;
}

.book-list li:hover {
    background: rgba(245, 158, 11, 0.1);
    border-left-color: var(--gold);
    transform: translateX(4px);
}

.book-list li i {
    color: var(--gold-light);
    font-size: 13px;
    margin-top: 4px;
    flex-shrink: 0;
}

.book-list li span {
    flex: 1;
    word-break: break-word;
}

/* ============== AUDIO SAMPLE ============== */
.audio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 26px;
}

.audio-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

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

.audio-thumb {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.audio-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.audio-card:hover .audio-thumb img {
    transform: scale(1.08);
}

.audio-play-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 37, 64, 0.4);
    color: var(--white);
    font-size: 54px;
    opacity: 0.85;
    transition: opacity 0.3s ease;
    cursor: pointer;
}

.audio-info {
    padding: 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.audio-tag {
    display: inline-block;
    background: var(--gradient-gold);
    color: var(--navy-darker);
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
    align-self: flex-start;
}

.audio-info h3 {
    font-size: 17px;
    color: var(--navy-deep);
    margin-bottom: 4px;
    line-height: 1.4;
}

.audio-info p {
    font-size: 14px;
    color: var(--text-medium);
    margin-bottom: 14px;
}

.audio-info audio {
    width: 100%;
    height: 40px;
    margin-top: auto;
}

/* ============== BEFORE / AFTER ============== */
.ba-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 28px;
    align-items: stretch;
}

.ba-card {
    padding: 34px 26px;
    border-radius: 18px;
    box-shadow: var(--shadow-md);
}

.ba-before {
    background: var(--white);
    border: 2px solid #FCA5A5;
}

.ba-after {
    background: var(--gradient-ocean);
    color: var(--white);
    border: 2px solid var(--gold);
    box-shadow: var(--shadow-lg);
}

.ba-header {
    font-size: 21px;
    font-weight: 800;
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 2px solid rgba(0,0,0,0.08);
    display: flex;
    align-items: center;
    gap: 10px;
}

.ba-before .ba-header {
    color: #DC2626;
}

.ba-after .ba-header {
    color: var(--gold-light);
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.ba-card ul {
    list-style: none;
}

.ba-card li {
    padding: 9px 0;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    line-height: 1.5;
}

.ba-before li { color: var(--text-medium); }
.ba-before li i { color: #DC2626; margin-top: 5px; flex-shrink: 0; }

.ba-after li i { color: var(--gold-light); margin-top: 5px; flex-shrink: 0; }

.ba-card li span { flex: 1; }

.ba-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 38px;
    color: var(--ocean-bright);
}

/* ============== PRICING ============== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    padding: 40px 32px;
    border-radius: 22px;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--border-light);
    position: relative;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.pricing-featured {
    border-color: var(--gold);
    box-shadow: var(--shadow-gold);
    background: linear-gradient(180deg, #FFFBEB 0%, var(--white) 30%);
}

.pricing-ribbon {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-gold);
    color: var(--navy-darker);
    padding: 6px 22px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
}

.pricing-icon {
    width: 68px;
    height: 68px;
    background: var(--gradient-ocean);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 28px;
    margin-bottom: 20px;
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.pricing-featured .pricing-icon {
    background: var(--gradient-gold);
    color: var(--navy-darker);
    box-shadow: var(--shadow-gold);
}

.pricing-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--navy-deep);
    margin-bottom: 8px;
    line-height: 1.3;
}

.pricing-desc {
    color: var(--text-medium);
    font-size: 14.5px;
    margin-bottom: 22px;
    min-height: 44px;
    line-height: 1.5;
}

.pricing-amount {
    margin-bottom: 26px;
    padding-bottom: 22px;
    border-bottom: 1px dashed var(--border-light);
}

.price-old {
    display: inline-block;
    text-decoration: line-through;
    color: var(--text-light);
    font-size: 16px;
    margin-bottom: 4px;
}

.price-new {
    font-size: 50px;
    font-weight: 900;
    color: var(--ocean-bright);
    line-height: 1;
}

.pricing-featured .price-new {
    color: var(--gold-dark);
}

.price-new span {
    font-size: 22px;
    font-weight: 700;
    margin-left: 4px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 28px;
    flex-grow: 1;
}

.pricing-features li {
    padding: 8px 0;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14.5px;
    color: var(--text-dark);
    line-height: 1.5;
}

.pricing-features i {
    color: var(--ocean-bright);
    font-size: 13px;
    margin-top: 5px;
    flex-shrink: 0;
}

.pricing-features li span { flex: 1; }

.pricing-features .fa-gift {
    color: var(--gold-dark);
}

.pricing-trust {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
    margin-top: 48px;
}

.trust-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--white);
    padding: 11px 20px;
    border-radius: 100px;
    box-shadow: var(--shadow-sm);
    color: var(--navy-deep);
    font-weight: 600;
    font-size: 14px;
    border: 1px solid var(--border-light);
}

.trust-badge i {
    color: var(--ocean-bright);
}

/* ============== FAQ ============== */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.faq-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.open {
    background: rgba(245, 158, 11, 0.08);
    border-color: rgba(245, 158, 11, 0.3);
}

.faq-q {
    width: 100%;
    background: none;
    border: none;
    padding: 20px 24px;
    color: var(--white);
    font-size: 15.5px;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    line-height: 1.5;
}

.faq-q span { flex: 1; }

.faq-q i {
    color: var(--gold-light);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-item.open .faq-q i {
    transform: rotate(180deg);
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
    padding: 0 24px;
}

.faq-item.open .faq-a {
    max-height: 400px;
    padding: 0 24px 22px;
}

.faq-a p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 14.5px;
    line-height: 1.7;
}

/* ============== FINAL CTA ============== */
.final-cta {
    background: var(--gradient-navy);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.final-cta::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.18) 0%, transparent 60%);
    pointer-events: none;
}

.final-cta > .container {
    position: relative;
    z-index: 2;
}

.final-cta h2,
.final-cta-title {
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 16px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    text-wrap: balance;
    white-space: normal;
    word-break: keep-all;
    overflow-wrap: normal;
}

.final-cta p,
.final-cta-desc {
    font-size: clamp(15px, 1.8vw, 17px);
    color: rgba(255, 255, 255, 0.88);
    margin-bottom: 34px;
    max-width: 820px;
    margin-left: auto;
    margin-right: auto;
    text-wrap: balance;
    white-space: normal;
    word-break: keep-all;
    overflow-wrap: normal;
}

.final-cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.final-cta-note {
    color: var(--gold-light) !important;
    font-size: 14.5px !important;
    font-weight: 600;
    margin-top: 16px !important;
}

/* ============== FOOTER ============== */
.footer {
    background: var(--navy-darker);
    color: rgba(255, 255, 255, 0.75);
    padding: 36px 0 30px;
}

.footer-bottom {
    text-align: center;
    font-size: 13px;
}

.footer-bottom p {
    margin-bottom: 8px;
}

.disclaimer {
    color: rgba(255, 255, 255, 0.55);
    font-size: 12.5px;
    line-height: 1.7;
    max-width: 820px;
    margin: 12px auto 0;
}

/* ============== FLOATING CTA ============== */
.floating-cta {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--gradient-gold);
    color: var(--navy-darker);
    padding: 14px 22px;
    border-radius: 100px;
    font-weight: 800;
    box-shadow: 0 10px 30px rgba(245, 158, 11, 0.5);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    z-index: 999;
    transform: translateY(120px);
    opacity: 0;
    transition: all 0.4s ease;
    font-size: 14px;
}

.floating-cta.show {
    transform: translateY(0);
    opacity: 1;
}

.floating-cta:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 36px rgba(245, 158, 11, 0.65);
}

/* ============== RESPONSIVE ============== */

/* Tablet & Smaller Desktop */
@media (max-width: 992px) {
    .section { padding: 70px 0; }

    .hero { padding: 70px 0 80px; min-height: 540px; }

    .solution-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .solution-image { max-width: 600px; margin: 0 auto; }

    .ba-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .ba-arrow {
        transform: rotate(90deg);
        font-size: 30px;
        padding: 6px 0;
    }

    .tabs {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile */
@media (max-width: 640px) {
    .container { padding: 0 18px; }

    .section { padding: 56px 0; }

    .section-header { margin-bottom: 44px; }

    /* Top bar */
    .top-bar {
        font-size: 12.5px;
        padding: 8px 0;
    }
    .top-bar p {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 4px;
        line-height: 1.4;
    }
    .countdown-inline {
        font-size: 12px;
        padding: 2px 8px;
    }

    /* Hero */
    .hero { padding: 56px 0 64px; min-height: auto; }
    .hero-badge {
        font-size: 12px;
        padding: 8px 14px;
    }
    .hero-title {
        font-size: 1.75rem;
        line-height: 1.25;
    }
    .hero-subtitle { font-size: 14.5px; }
    .hero-desc { font-size: 15px; margin-bottom: 28px; }

    .hero-cta-group {
        flex-direction: column;
        gap: 12px;
        margin-bottom: 36px;
    }
    .hero-cta-group .btn { width: 100%; }

    .hero-trust {
        gap: 18px;
        justify-content: space-around;
        padding-top: 22px;
    }
    .trust-item {
        flex-direction: column;
        gap: 4px;
        font-size: 12.5px;
        text-align: center;
    }
    .trust-item i { font-size: 20px; }
    .trust-item strong { font-size: 16px; }

    /* Buttons */
    .btn { padding: 13px 22px; font-size: 14.5px; }
    .btn-large { padding: 15px 24px; font-size: 15px; }

    /* Audience / problem cards */
    .audience-card { padding: 30px 22px; }
    .audience-card h3 { font-size: 17px; }
    .problem-card { padding: 22px 18px; gap: 14px; }
    .problem-card p { font-size: 14px; }

    /* Solution */
    .solution-item { gap: 16px; margin-bottom: 28px; }
    .solution-num {
        width: 46px;
        height: 46px;
        font-size: 15px;
        border-radius: 12px;
    }
    .solution-item h3 { font-size: 17px; }

    .plan-box { padding: 28px 20px; }
    .plan-title { font-size: 18px; margin-bottom: 22px; }
    .plan-grid { grid-template-columns: 1fr; gap: 14px; }

    /* Tabs - mobile 1 cột stacked đẹp gọn */
    .tabs {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    .tab-btn {
        padding: 12px 10px;
        font-size: 13px;
        flex-direction: column;
        gap: 6px;
    }
    .tab-btn i { font-size: 18px; }
    .tab-btn span { font-size: 12.5px; line-height: 1.3; }

    .tab-content { padding: 26px 18px; }
    .tab-title { font-size: 18px; }

    .book-list { grid-template-columns: 1fr; }
    .book-list li { font-size: 13.5px; padding: 11px 14px; }

    /* Audio */
    .audio-info { padding: 18px; }
    .audio-info h3 { font-size: 16px; }

    /* Before/After */
    .ba-card { padding: 28px 22px; }
    .ba-header { font-size: 18px; }
    .ba-card li { font-size: 14px; }

    /* Pricing */
    .pricing-card { padding: 34px 24px; }
    .pricing-title { font-size: 20px; }
    .pricing-desc { font-size: 14px; min-height: auto; }
    .price-new { font-size: 42px; }
    .price-new span { font-size: 19px; }
    .pricing-features li { font-size: 14px; }

    .trust-badge {
        font-size: 13px;
        padding: 9px 16px;
    }

    /* FAQ */
    .faq-q { padding: 16px 18px; font-size: 14.5px; }
    .faq-item.open .faq-a { padding: 0 18px 18px; }
    .faq-a p { font-size: 14px; }

    /* Final CTA */
    .final-cta { padding: 60px 0; }
    .final-cta-buttons { flex-direction: column; gap: 12px; }
    .final-cta-buttons .btn { width: 100%; }

    /* Footer */
    .footer { padding: 28px 0 24px; }

    /* Floating CTA - icon only on mobile */
    .floating-cta {
        bottom: 18px;
        right: 18px;
        padding: 0;
        width: 56px;
        height: 56px;
        justify-content: center;
        font-size: 20px;
    }
    .floating-cta span { display: none; }
    .floating-cta i { margin: 0; }
}

/* Very small screens */
@media (max-width: 380px) {
    .hero-title { font-size: 1.55rem; }
    .section-title { font-size: 1.4rem; }
    .price-new { font-size: 38px; }
    .pricing-card { padding: 28px 20px; }
}