/* ========================================
   CHONGMUOI.PRO - IP Nỗi Đau Website
   Mobile-first, Emotion-driven Design
   ======================================== */

/* CSS Variables */
:root {
    /* Colors - Warm, trustworthy palette */
    --color-bg: #fdfcf9;
    --color-bg-alt: #f7f5f0;
    --color-bg-dark: #2c2c2c;
    --color-text: #3d3d3d;
    --color-text-light: #666666;
    --color-text-muted: #888888;
    --color-heading: #1a1a1a;
    
    /* Accent colors */
    --color-primary: #5c8a4d;
    --color-primary-light: #7ba86b;
    --color-primary-dark: #4a7040;
    --color-accent: #c9a959;
    --color-accent-light: #e8d9a0;
    
    /* Emotion colors */
    --color-pain: #8b5a5a;
    --color-pain-bg: #f9f2f2;
    --color-hope: #5a7a8b;
    --color-hope-bg: #f2f6f9;
    --color-success: #5c8a4d;
    --color-success-bg: #f2f9f2;
    --color-warning: #b8860b;
    
    /* Typography */
    --font-serif: 'Libre Baskerville', Georgia, serif;
    --font-sans: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-xxl: 6rem;
    
    /* Borders & Shadows */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    color: var(--color-heading);
    line-height: 1.4;
    font-weight: 700;
}

h1 {
    font-size: 1.75rem;
    margin-bottom: var(--space-lg);
}

h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-lg);
}

h3 {
    font-size: 1.2rem;
    margin-bottom: var(--space-sm);
}

h4 {
    font-family: var(--font-sans);
    font-size: 1.05rem;
    font-weight: 600;
}

p {
    margin-bottom: var(--space-md);
}

strong {
    font-weight: 600;
    color: var(--color-heading);
}

em {
    font-style: italic;
    color: var(--color-text-light);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* ========================================
   KHỐI 0 - TUYÊN NGÔN NGẮN
   ======================================== */
.block-0 {
    background: linear-gradient(135deg, #f8f6f1 0%, #f0ebe3 100%);
    padding: var(--space-lg) 0;
    border-bottom: 1px solid #e5e0d5;
}

.disclaimer-top {
    text-align: center;
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin: 0;
    line-height: 1.9;
}

.disclaimer-top em {
    color: var(--color-text-light);
}

/* ========================================
   BLOCKS - General styling
   ======================================== */
.block {
    padding: var(--space-xl) 0;
}

/* ========================================
   KHỐI 1 - VẤN ĐỀ MUỖI (NỖI ĐAU THẬT)
   ======================================== */
.block-1 {
    background-color: var(--color-bg);
    padding-top: var(--space-xxl);
}

.block-1 h1 {
    text-align: center;
    color: var(--color-pain);
}

.block-1 h1 .highlight {
    display: block;
    color: var(--color-heading);
    font-size: 1.15em;
    margin-top: var(--space-xs);
}

.pain-content {
    margin-top: var(--space-lg);
}

.pain-content > p {
    font-size: 1.05rem;
}

.pain-list {
    margin: var(--space-lg) 0;
    display: grid;
    gap: var(--space-md);
}

.pain-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-pain-bg);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-pain);
}

.pain-item i {
    font-size: 1.5rem;
    color: var(--color-pain);
    flex-shrink: 0;
    margin-top: 2px;
}

.pain-item strong {
    display: block;
    color: var(--color-pain);
    margin-bottom: var(--space-xs);
}

.pain-item p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--color-text-light);
}

.pain-closing {
    text-align: center;
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-style: italic;
    color: var(--color-pain);
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid #e5e0d5;
}

/* ========================================
   KHỐI 2 - CÁC CÁCH HIỆN HỮU
   ======================================== */
.block-2 {
    background: var(--color-bg-alt);
}

.block-2 h2 {
    text-align: center;
}

.methods-grid {
    display: grid;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.method-card {
    background: white;
    padding: var(--space-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid #e8e4dc;
}

.method-icon {
    width: 48px;
    height: 48px;
    background: var(--color-bg-alt);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-sm);
}

.method-icon i {
    font-size: 1.25rem;
    color: var(--color-text-light);
}

.method-card h3 {
    font-family: var(--font-sans);
    font-size: 1.1rem;
    margin-bottom: var(--space-xs);
}

.method-cost {
    font-size: 0.9rem;
    color: var(--color-warning);
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.method-problems {
    list-style: none;
    font-size: 0.9rem;
}

.method-problems li {
    padding: var(--space-xs) 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--color-text-light);
}

.method-problems li::before {
    content: "✗";
    position: absolute;
    left: 0;
    color: var(--color-pain);
    font-weight: bold;
}

.methods-summary {
    text-align: center;
    margin-top: var(--space-lg);
    padding: var(--space-md);
    background: white;
    border-radius: var(--radius-md);
    border: 2px dashed var(--color-pain);
}

/* ========================================
   KHỐI 3 - QUÁ TRÌNH TRẢ GIÁ (IP LÕI)
   ======================================== */
.block-3 {
    background: var(--color-bg);
}

.block-3 h2 {
    text-align: center;
    color: var(--color-pain);
}

.story-content {
    margin-top: var(--space-lg);
}

.story-content > p {
    font-size: 1.05rem;
}

.story-content blockquote {
    margin: var(--space-lg) 0;
    padding: var(--space-md) var(--space-lg);
    background: var(--color-pain-bg);
    border-left: 4px solid var(--color-pain);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-family: var(--font-serif);
    font-style: italic;
}

.story-content blockquote p {
    margin: 0;
    color: var(--color-pain);
}

.story-content .question {
    text-align: center;
    font-family: var(--font-serif);
    font-size: 1.15rem;
    color: var(--color-hope);
    padding: var(--space-md);
    background: var(--color-hope-bg);
    border-radius: var(--radius-md);
    margin-top: var(--space-lg);
}

/* ========================================
   KHỐI 4 - ĐIỂM XOAY CHIỀU
   ======================================== */
.block-4 {
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-hope-bg) 100%);
}

.block-4 h2 {
    text-align: center;
    color: var(--color-hope);
}

.insight-content {
    margin-top: var(--space-lg);
    display: grid;
    gap: var(--space-md);
}

.insight-card {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md);
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.insight-number {
    width: 40px;
    height: 40px;
    background: var(--color-hope);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-weight: 700;
    flex-shrink: 0;
}

.insight-text h3 {
    font-family: var(--font-sans);
    color: var(--color-hope);
    margin-bottom: var(--space-xs);
}

.insight-text p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--color-text-light);
}

/* ========================================
   KHỐI 5 - GIẢI PHÁP
   ======================================== */
.block-5 {
    background: var(--color-success-bg);
}

.block-5 h2 {
    text-align: center;
    color: var(--color-success);
}

.solution-intro {
    text-align: center;
    font-size: 1.05rem;
    margin-bottom: var(--space-lg);
}

.solution-details {
    display: grid;
    gap: var(--space-md);
}

.solution-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md);
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.solution-item i {
    font-size: 1.5rem;
    color: var(--color-success);
    flex-shrink: 0;
    margin-top: 2px;
}

.solution-item h4 {
    color: var(--color-success);
    margin-bottom: var(--space-xs);
}

.solution-item p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--color-text-light);
}

.solution-spaces {
    margin-top: var(--space-lg);
    text-align: center;
}

.solution-spaces h4 {
    color: var(--color-text-light);
    margin-bottom: var(--space-sm);
}

.space-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    justify-content: center;
}

.space-tags span {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    background: white;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--color-text-light);
    box-shadow: var(--shadow-sm);
}

.space-tags span i {
    color: var(--color-success);
}

.solution-note {
    margin-top: var(--space-lg);
    padding: var(--space-md);
    background: white;
    border-radius: var(--radius-md);
    text-align: center;
    border: 2px solid var(--color-success);
}

.solution-note p {
    margin: 0;
    font-family: var(--font-serif);
}

/* ========================================
   KHỐI 6 - TỰ KIỂM CHỨNG
   ======================================== */
.block-6 {
    background: var(--color-bg);
}

.block-6 h2 {
    text-align: center;
}

.verify-grid {
    display: grid;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.verify-card {
    padding: var(--space-md);
    border-radius: var(--radius-md);
}

.verify-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.verify-header i {
    font-size: 1.5rem;
}

.verify-header h3 {
    font-family: var(--font-sans);
    margin: 0;
}

.verify-right {
    background: var(--color-success-bg);
    border: 2px solid var(--color-success);
}

.verify-right .verify-header i,
.verify-right .verify-header h3 {
    color: var(--color-success);
}

.verify-right ul {
    list-style: none;
}

.verify-right li {
    padding: var(--space-xs) 0;
    padding-left: 1.5rem;
    position: relative;
}

.verify-right li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: bold;
}

.verify-wrong {
    background: var(--color-pain-bg);
    border: 2px solid #d4a5a5;
}

.verify-wrong .verify-header i,
.verify-wrong .verify-header h3 {
    color: var(--color-pain);
}

.verify-wrong ul {
    list-style: none;
    margin-bottom: var(--space-md);
}

.verify-wrong li {
    padding: var(--space-xs) 0;
    padding-left: 1.5rem;
    position: relative;
}

.verify-wrong li::before {
    content: "✗";
    position: absolute;
    left: 0;
    color: var(--color-pain);
    font-weight: bold;
}

.verify-fix {
    padding-top: var(--space-md);
    border-top: 1px solid #d4a5a5;
}

.verify-fix p {
    margin-bottom: var(--space-xs);
}

.verify-fix ol {
    margin-left: var(--space-md);
    font-size: 0.95rem;
    color: var(--color-text-light);
}

.verify-fix li {
    padding: var(--space-xs) 0;
}

.verify-note {
    text-align: center;
    margin-top: var(--space-lg);
    font-family: var(--font-serif);
    color: var(--color-text-light);
}

/* ========================================
   KHỐI 7 - THANH TOÁN TRI ÂN
   ======================================== */
.block-7 {
    background: linear-gradient(180deg, var(--color-bg) 0%, #f5f0e6 100%);
    padding: var(--space-xxl) 0;
}

.block-7 h2 {
    text-align: center;
    color: var(--color-accent);
}

.gratitude-content {
    text-align: center;
    margin-top: var(--space-lg);
}

.gratitude-content > p {
    font-size: 1.05rem;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

.payment-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin: var(--space-lg) 0;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.payment-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    border: 2px solid;
    border-radius: var(--radius-lg);
    background: white;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-family: var(--font-sans);
}

.payment-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.payment-btn:active {
    transform: translateY(0);
}

.payment-btn .amount {
    font-size: 1.75rem;
    font-weight: 700;
    font-family: var(--font-serif);
}

.payment-btn .label {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-top: var(--space-xs);
}

.payment-3 {
    border-color: #b8c9b8;
}
.payment-3 .amount { color: var(--color-success); }
.payment-3:hover { background: var(--color-success-bg); }

.payment-9 {
    border-color: #b8c4c9;
}
.payment-9 .amount { color: var(--color-hope); }
.payment-9:hover { background: var(--color-hope-bg); }

.payment-27 {
    border-color: var(--color-accent-light);
    background: linear-gradient(135deg, #fffdf8 0%, #fdf8eb 100%);
}
.payment-27 .amount { color: var(--color-accent); }
.payment-27:hover { 
    background: linear-gradient(135deg, #fdf8eb 0%, #f8f0dc 100%);
    border-color: var(--color-accent);
}

.payment-methods {
    margin-top: var(--space-lg);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.payment-methods i {
    color: var(--color-success);
}

.payment-icons {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-top: var(--space-sm);
    flex-wrap: wrap;
}

.payment-icons span {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--color-text-light);
}

/* ========================================
   KHỐI 8 - CHIA SẺ & DISCLAIMER
   ======================================== */
.block-8 {
    background: var(--color-bg);
    padding-bottom: var(--space-lg);
}

.share-section {
    text-align: center;
    padding: var(--space-lg);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-lg);
}

.share-text {
    font-family: var(--font-serif);
    font-style: italic;
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

.share-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    justify-content: center;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.share-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.share-facebook {
    background: #1877f2;
    color: white;
}

.share-zalo {
    background: #0068ff;
    color: white;
}

.share-copy {
    background: var(--color-bg-alt);
    color: var(--color-text);
    border: 1px solid #ddd;
}

.disclaimer {
    padding: var(--space-md);
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.disclaimer i {
    color: var(--color-text-light);
}

/* ========================================
   FOOTER
   ======================================== */
.site-footer {
    background: var(--color-bg-dark);
    color: white;
    padding: var(--space-xl) 0 var(--space-lg);
    text-align: center;
}

.closing-statement {
    margin-bottom: var(--space-lg);
}

.closing-main {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    line-height: 1.6;
    margin-bottom: var(--space-md);
    color: white;
}

.closing-tagline {
    font-size: 0.95rem;
    color: var(--color-accent-light);
    font-style: italic;
}

.footer-copy {
    padding-top: var(--space-md);
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-copy p {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
    margin: 0;
}

/* ========================================
   MODAL
   ======================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: var(--space-md);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: var(--radius-lg);
    max-width: 420px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    width: 36px;
    height: 36px;
    border: none;
    background: var(--color-bg-alt);
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-pain-bg);
    color: var(--color-pain);
}

.modal-content h3 {
    padding: var(--space-lg);
    padding-bottom: var(--space-sm);
    text-align: center;
    font-family: var(--font-sans);
}

.modal-content h3 span {
    color: var(--color-accent);
}

.modal-body {
    padding: 0 var(--space-lg) var(--space-lg);
}

.modal-body > p {
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

.payment-option {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    border: 2px solid #e8e4dc;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.payment-option:hover {
    border-color: var(--color-primary);
    background: var(--color-success-bg);
}

.payment-option i {
    font-size: 1.5rem;
    color: var(--color-primary);
}

.banking-details {
    display: none;
    margin-top: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
}

.banking-details.active {
    display: block;
}

.bank-info {
    margin-bottom: var(--space-md);
}

.bank-info p {
    margin-bottom: var(--space-xs);
    font-size: 0.95rem;
}

.bank-note {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ========================================
   TOAST
   ======================================== */
.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--color-bg-dark);
    color: white;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    box-shadow: var(--shadow-lg);
    z-index: 1100;
    opacity: 0;
    transition: all var(--transition-normal);
}

.toast.active {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast i {
    color: var(--color-success);
}

/* ========================================
   RESPONSIVE - Tablet
   ======================================== */
@media (min-width: 768px) {
    h1 {
        font-size: 2.25rem;
    }
    
    h2 {
        font-size: 1.85rem;
    }
    
    .container {
        padding: 0 var(--space-lg);
    }
    
    .block {
        padding: var(--space-xxl) 0;
    }
    
    .methods-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .verify-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .payment-buttons {
        flex-direction: row;
        max-width: 100%;
        justify-content: center;
    }
    
    .payment-btn {
        flex: 1;
        max-width: 200px;
    }
}

/* ========================================
   RESPONSIVE - Desktop
   ======================================== */
@media (min-width: 1024px) {
    .container {
        max-width: 800px;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    .pain-list {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .insight-content {
        grid-template-columns: 1fr;
        max-width: 640px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .solution-details {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .solution-details .solution-item:last-child {
        grid-column: span 2;
        max-width: 50%;
        justify-self: center;
    }
}

/* ========================================
   ANIMATIONS & SPECIAL EFFECTS
   ======================================== */

/* Fade in on scroll - to be triggered by JS */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Subtle pulse for payment buttons */
@keyframes subtlePulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(201, 169, 89, 0);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(201, 169, 89, 0.1);
    }
}

.payment-27 {
    animation: subtlePulse 3s infinite;
}

/* Print styles */
@media print {
    .block-7,
    .share-section,
    .modal,
    .toast {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
    }
    
    .block {
        padding: 1cm 0;
        page-break-inside: avoid;
    }
}