:root {
    --bg-color: #0F172A;
    --bg-darker: #0B1120;
    --bg-card: #131C31;
    --text-main: #FFFFFF;
    --text-muted: #94A3B8;
    --text-secondary: #CBD5E1;
    --primary: #DFBB00;
    --primary-hover: #FACC15;
    --primary-dim: rgba(223, 187, 0, 0.15);
    --secondary: #1E293B;
    --secondary-hover: #334155;
    --accent: #F59E0B;
    --green: #10B981;
    --green-dim: rgba(16, 185, 129, 0.15);
    --red: #EF4444;
    --blue: #3B82F6;
    --purple: #8B5CF6;
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --border-active: rgba(223, 187, 0, 0.5);
    --font-family: 'Inter', sans-serif;
    --radius: 12px;
    --radius-lg: 16px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(223, 187, 0, 0.4);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

/* Custom Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-darker); }
::-webkit-scrollbar-thumb { background: var(--secondary-hover); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-family);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { text-decoration: none; color: inherit; }
input, textarea, button, select { font-family: var(--font-family); }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

.hidden { display: none !important; }

/* ============================================
   HEADER
   ============================================ */
.checkout-header {
    background: rgba(11, 17, 32, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    padding: 14px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.3rem;
    color: #fff;
    transition: opacity 0.3s;
}
.logo:hover { opacity: 0.8; }
.logo-img { height: 34px; width: auto; object-fit: contain; }
.logo-text { letter-spacing: 0.5px; }

.secure-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--green);
    font-weight: 600;
    background: var(--green-dim);
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid rgba(16, 185, 129, 0.3);
}
.secure-badge i { font-size: 1.1rem; }

/* ============================================
   PROGRESS STEPS
   ============================================ */
.checkout-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px 0 10px;
    gap: 0;
}

.progress-step {
    display: flex;
    align-items: center;
    gap: 8px;
    opacity: 0.35;
    transition: all 0.4s ease;
}
.progress-step.active { opacity: 1; }
.progress-step.completed { opacity: 0.7; }

.step-dot {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--secondary);
    border: 2px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    transition: all 0.4s ease;
}
.progress-step.active .step-dot {
    background: var(--primary);
    color: var(--bg-darker);
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(223, 187, 0, 0.4);
}

.progress-step span {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    white-space: nowrap;
}
.progress-step.active span { color: var(--text-main); }

.progress-line {
    width: 60px;
    height: 2px;
    background: var(--glass-border);
    margin: 0 8px;
    transition: all 0.4s ease;
}
.progress-line.active {
    background: linear-gradient(90deg, var(--primary), rgba(223, 187, 0, 0.3));
}

/* ============================================
   MAIN CHECKOUT LAYOUT
   ============================================ */
.checkout-main {
    flex: 1;
    padding: 30px 0 60px;
}

.checkout-grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 30px;
    align-items: start;
}

/* ============================================
   CHECKOUT SECTIONS (Left Side)
   ============================================ */
.checkout-section {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 30px;
    margin-bottom: 24px;
    animation: fadeSlideUp 0.5s ease forwards;
}

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

.section-title {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--glass-border);
}
.section-title i {
    font-size: 1.5rem;
    color: var(--primary);
    background: var(--primary-dim);
    padding: 8px;
    border-radius: 10px;
}
.section-title h2 { font-size: 1.2rem; font-weight: 700; }

.payment-guide-section {
    border-color: var(--glass-border);
    background: var(--bg-card);
}

.payment-guide-section .section-title h2 {
    color: var(--primary);
}

.payment-guide-list {
    margin: 0;
    padding-left: 18px;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    gap: 10px;
    line-height: 1.6;
}

.payment-guide-note {
    margin-top: 12px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   FORM STYLES
   ============================================ */
.form-group {
    margin-bottom: 18px;
    flex: 1;
}

.form-row {
    display: flex;
    gap: 16px;
}

label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}
.required { color: var(--red); }

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}
.input-wrapper i {
    position: absolute;
    left: 14px;
    font-size: 1.1rem;
    color: var(--text-muted);
    pointer-events: none;
    transition: color 0.3s;
}

.input-wrapper input,
.input-wrapper textarea {
    width: 100%;
    padding: 12px 14px 12px 44px;
    background: var(--bg-darker);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    color: var(--text-main);
    font-size: 0.95rem;
    transition: all 0.3s ease;
    outline: none;
}
.input-wrapper input::placeholder,
.input-wrapper textarea::placeholder {
    color: rgba(148, 163, 184, 0.5);
}
.input-wrapper input:focus,
.input-wrapper textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(223, 187, 0, 0.1);
}
.input-wrapper input:focus ~ i,
.input-wrapper:focus-within i {
    color: var(--primary);
}

.textarea-wrapper { align-items: flex-start; }
.textarea-wrapper i { top: 14px; position: absolute; }
.textarea-wrapper textarea { resize: vertical; min-height: 80px; }

/* ============================================
   PAYMENT METHODS
   ============================================ */
.payment-methods {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.payment-option {
    cursor: pointer;
}
.payment-option input[type="radio"] {
    display: none;
}

.payment-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    background: var(--bg-darker);
    border: 2px solid var(--glass-border);
    border-radius: var(--radius);
    transition: all 0.3s ease;
}
.payment-card:hover {
    border-color: rgba(223, 187, 0, 0.3);
    background: rgba(223, 187, 0, 0.03);
}

.payment-option.active .payment-card {
    border-color: var(--primary);
    background: rgba(223, 187, 0, 0.06);
    box-shadow: 0 0 20px rgba(223, 187, 0, 0.08);
}

.payment-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}
.bank-icon { background: rgba(59, 130, 246, 0.15); color: var(--blue); }
.momo-icon { background: rgba(168, 38, 107, 0.2); color: #D8247E; }
.zalo-icon { background: rgba(0, 106, 255, 0.15); color: #006AFF; }

.payment-info { flex: 1; }
.payment-info strong { display: block; font-size: 0.95rem; color: #fff; }
.payment-info span { font-size: 0.8rem; color: var(--text-muted); }

.radio-dot {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 2px solid var(--glass-border);
    position: relative;
    flex-shrink: 0;
    transition: all 0.3s;
}
.payment-option.active .radio-dot {
    border-color: var(--primary);
}
.payment-option.active .radio-dot::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    background: var(--primary);
    border-radius: 50%;
}

/* ============================================
   PAYMENT DETAILS
   ============================================ */
.payment-details {
    background: var(--bg-darker);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 24px;
    animation: fadeSlideUp 0.4s ease forwards;
}

.qr-section {
    text-align: center;
    margin-bottom: 20px;
}

.qr-placeholder {
    width: 180px;
    height: 180px;
    margin: 0 auto;
    background: #fff;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: #64748B;
    font-size: 0.8rem;
    text-align: center;
}
.qr-placeholder i {
    font-size: 3rem;
    color: #94A3B8;
}
.momo-qr { background: linear-gradient(135deg, #FFF0F7, #FFFFFF); }

.bank-info-card h4 {
    font-size: 1rem;
    margin-bottom: 16px;
    color: var(--primary);
}

.bank-detail-row {
    display: flex;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    gap: 12px;
}
.bank-detail-row:last-of-type { border-bottom: none; }
.bank-detail-row.highlight {
    background: var(--primary-dim);
    margin: 8px -12px;
    padding: 12px;
    border-radius: 8px;
    border: 1px dashed rgba(223, 187, 0, 0.4);
}

.bank-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    min-width: 120px;
    flex-shrink: 0;
}
.bank-value {
    flex: 1;
    font-weight: 700;
    font-size: 0.95rem;
    word-break: break-all;
}
.bank-detail-row.highlight .bank-value { color: var(--primary); }

.copy-btn {
    background: var(--secondary);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
}
.copy-btn:hover {
    background: var(--primary-dim);
    color: var(--primary);
    border-color: rgba(223, 187, 0, 0.3);
}
.copy-btn.copied {
    background: var(--green-dim);
    color: var(--green);
    border-color: rgba(16, 185, 129, 0.3);
}

.bank-note {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    margin-top: 16px;
    padding: 12px;
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--accent);
}
.bank-note i { font-size: 1.1rem; flex-shrink: 0; margin-top: 2px; }

/* ============================================
   DYNAMIC QR CODE
   ============================================ */
.qr-dynamic {
    width: 220px;
    height: 220px;
    border-radius: 12px;
    background: #fff;
    display: block;
    margin: 0 auto;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}
.qr-caption {
    margin-top: 10px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ============================================
   JOIN GROUP CARD
   ============================================ */
.group-card {
    text-align: center;
    padding: 10px 0 0;
}

.embedded-pricing-intro {
    color: var(--text-muted);
    margin-bottom: 18px;
    font-size: 0.92rem;
}

.embedded-pricing-grid {
    display: grid;
    gap: 14px;
}

.embedded-pricing-card {
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    background: var(--bg-darker);
    overflow: hidden;
    transition: all 0.25s ease;
}

.embedded-pricing-card.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(223, 187, 0, 0.25);
}

.embedded-pricing-card:hover {
    transform: translateY(-1px);
}

.embedded-badge {
    text-align: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: #fff;
    padding: 6px 10px;
    background: linear-gradient(135deg, #334155, #1e293b);
}

.embedded-pricing-card.popular .embedded-badge {
    background: linear-gradient(135deg, #facc15, #eab308);
    color: #111827;
}

.embedded-pricing-card.pkg-1 .embedded-badge { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.embedded-pricing-card.pkg-6 .embedded-badge { background: linear-gradient(135deg, #14b8a6, #0f766e); }
.embedded-pricing-card.pkg-12 .embedded-badge { background: linear-gradient(135deg, #8b5cf6, #7c3aed); }
.embedded-pricing-card.lifetime .embedded-badge { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.embedded-pricing-card.pkg-rcod .embedded-badge { background: linear-gradient(135deg, #06b6d4, #2563eb); }
.embedded-pricing-card.pkg-rcod .embedded-pricing-select {
    background: linear-gradient(135deg, #06b6d4, #2563eb);
    color: #f8fafc;
    border: none;
}

.embedded-content {
    padding: 14px 16px 8px;
}

.embedded-name {
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 4px;
}

.embedded-desc {
    color: var(--text-muted);
    font-size: 0.88rem;
}

.embedded-action {
    padding: 0 16px 16px;
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: 12px;
}

.embedded-original {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.embedded-price {
    font-size: 2rem;
    font-weight: 800;
    color: #fff;
}

.embedded-pricing-select {
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.04);
    color: #fff;
    border-radius: 8px;
    padding: 10px 18px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 145px;
}

.embedded-pricing-card.popular .embedded-pricing-select {
    background: linear-gradient(135deg, #facc15, #eab308);
    border-color: rgba(250, 204, 21, 0.8);
    color: #111827;
}

.embedded-pricing-card.lifetime .embedded-pricing-select {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    border-color: rgba(245, 158, 11, 0.8);
}

.embedded-pricing-select:hover {
    transform: translateY(-1px);
    opacity: 0.95;
}
.group-icon-wrap {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 2rem;
    color: var(--bg-darker);
    box-shadow: 0 0 25px rgba(223, 187, 0, 0.3);
}
.group-card h3 {
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 10px;
    color: #fff;
}
.group-card > p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 20px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}
.group-card > p strong { color: var(--primary); }

.group-benefits {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 24px;
    text-align: left;
}
.group-benefit-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-darker);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}
.group-benefit-item i {
    color: var(--green);
    font-size: 1rem;
    flex-shrink: 0;
}

.group-qr-area {
    margin-bottom: 20px;
}
.group-qr-placeholder {
    width: 280px;
    margin: 0 auto;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3), 0 0 0 3px rgba(223, 187, 0, 0.2);
}
.group-qr-placeholder i {
    font-size: 3rem;
    color: #94A3B8;
}
.group-qr-placeholder img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
}
.group-qr-hint {
    display: block;
    margin-top: 8px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.btn-join-group {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--bg-darker);
    font-weight: 800;
    border-radius: 12px;
    font-size: 1.05rem;
    transition: all 0.3s;
    animation: pulseGlow 2.5s infinite;
}
.btn-join-group:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(223, 187, 0, 0.4);
    color: var(--bg-darker);
}

/* ============================================
   ORDER SUMMARY (Right Side)
   ============================================ */
.order-summary {
    position: sticky;
    top: 80px;
}

.summary-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 28px;
    animation: fadeSlideUp 0.6s ease forwards;
}

.summary-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}
.summary-header i { font-size: 1.3rem; color: var(--primary); }
.summary-header h3 { font-size: 1.1rem; font-weight: 700; }

.selected-package {
    background: linear-gradient(135deg, rgba(223, 187, 0, 0.08), rgba(245, 158, 11, 0.05));
    border: 1px solid rgba(223, 187, 0, 0.2);
    border-radius: var(--radius);
    padding: 18px;
    margin-bottom: 20px;
}
.pkg-summary-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}
.pkg-summary-info {
    flex: 1;
    text-align: left;
}
.summary-total-block {
    text-align: right;
    flex-shrink: 0;
}
.summary-total-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}
.summary-total-price {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.1;
    white-space: nowrap;
}
.pkg-badge {
    display: inline-block;
    padding: 3px 12px;
    background: var(--primary);
    color: var(--bg-darker);
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: 8px;
}
.pkg-title {
    font-size: 1.4rem;
    font-weight: 800;
    color: #fff;
}
.pkg-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.summary-features {
    margin-bottom: 20px;
}
.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}
.feature-item i {
    color: var(--green);
    font-size: 1rem;
    flex-shrink: 0;
}

.summary-divider {
    height: 1px;
    background: var(--glass-border);
    margin: 16px 0;
}

/* Coupon */
.coupon-area { margin: 4px 0; }
.coupon-input-wrap {
    display: flex;
    gap: 8px;
}
.coupon-input-wrap input {
    flex: 1;
    padding: 10px 14px;
    background: var(--bg-darker);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: #fff;
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.3s;
}
.coupon-input-wrap input:focus {
    border-color: var(--primary);
}
.coupon-btn {
    padding: 10px 16px;
    background: var(--secondary);
    color: var(--text-muted);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.3s;
}
.coupon-btn:hover {
    background: var(--primary-dim);
    color: var(--primary);
    border-color: rgba(223, 187, 0, 0.3);
}

.coupon-message {
    margin-top: 8px;
    font-size: 0.85rem;
    padding: 8px 12px;
    border-radius: 6px;
}
.coupon-message.success {
    background: var(--green-dim);
    color: var(--green);
    border: 1px solid rgba(16, 185, 129, 0.2);
}
.coupon-message.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--red);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Price Breakdown */
.price-breakdown { margin: 4px 0; }
.price-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    font-size: 0.9rem;
    color: var(--text-muted);
}
.original-price { text-decoration: line-through; }
.discount-amount { color: var(--green); font-weight: 600; }

.total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0 16px;
}
.total-row span:first-child {
    font-size: 1rem;
    font-weight: 600;
}
.total-price {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.form-action-area {
    margin-top: 30px;
    padding-top: 24px;
    border-top: 1px dashed var(--glass-border);
}

.form-total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.form-total-row span:first-child {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-total-price {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary);
    text-shadow: 0 0 15px rgba(223, 187, 0, 0.2);
}

.btn-checkout {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--bg-darker);
    border: none;
    border-radius: var(--radius);
    font-size: 1.15rem;
    font-weight: 800;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition: all 0.3s;
    box-shadow: 0 10px 25px rgba(223, 187, 0, 0.2);
}

.btn-checkout:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(223, 187, 0, 0.3);
}

.guarantee {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 16px;
    font-size: 0.85rem;
    color: var(--green);
    background: rgba(16, 185, 129, 0.05);
    padding: 10px;
    border-radius: 8px;
}
.guarantee i { font-size: 1rem; flex-shrink: 0; margin-top: 1px; }

/* Trust Badges */
.trust-badges {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 16px;
}
.trust-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
}
.trust-item i { font-size: 0.9rem; color: var(--primary); }

/* ============================================
   SUCCESS MODAL
   ============================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    max-width: 480px;
    width: 100%;
    text-align: center;
    animation: scaleIn 0.4s ease;
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.success-animation {
    margin-bottom: 20px;
}
.success-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--green-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    animation: bounceIn 0.6s ease;
}
.success-icon i {
    font-size: 3rem;
    color: var(--green);
}

@keyframes bounceIn {
    0% { transform: scale(0); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.modal-content h2 {
    font-size: 1.5rem;
    margin-bottom: 12px;
    color: #fff;
}
.modal-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 8px;
}
.modal-content p strong { color: var(--primary); }
.modal-desc { font-size: 0.9rem !important; }

.modal-actions {
    margin-top: 24px;
}
.payment-modal-content {
    max-width: 640px;
    max-height: 90vh;
    overflow-y: auto;
}

.qr-container-modal {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 24px;
    text-align: center;
    position: relative;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.qr-container-modal img {
    width: 320px;
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.bank-info-modal {
    background: var(--bg-darker);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--border-active);
    margin-bottom: 20px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.9rem;
}

.info-row:last-child { border-bottom: none; }

.info-row span { color: var(--text-muted); }
.info-row strong { color: #fff; }

.highlight-row strong {
    color: var(--primary);
    font-size: 1.1rem;
}

.payment-instruction {
    display: flex;
    gap: 10px;
    padding: 12px;
    background: rgba(59, 130, 246, 0.05);
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--blue);
    line-height: 1.4;
}

.btn-cancel-payment {
    background: transparent;
    border: 1px solid rgba(239, 68, 68, 0.35);
    color: #fca5a5;
    cursor: pointer;
    font-size: 0.95rem;
    padding: 10px 22px;
    border-radius: 8px;
    transition: all 0.3s;
}

.btn-cancel-payment:hover {
    background: rgba(239, 68, 68, 0.12);
    color: #fecaca;
}

.btn-paid-confirm {
    background: linear-gradient(135deg, var(--green), #059669);
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 700;
    padding: 10px 22px;
    border-radius: 8px;
    transition: all 0.3s;
}

.btn-paid-confirm:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.3);
}

.btn-paid-confirm:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.modal-footer {
    display: flex;
    justify-content: center;
    gap: 14px;
    margin-top: 6px;
    position: sticky;
    bottom: 0;
    background: var(--bg-card);
    padding-top: 12px;
}

.confirm-notice-content {
    max-width: 560px;
    position: relative;
    text-align: left;
}

.confirm-notice-content h2,
.confirm-notice-content .success-animation {
    text-align: center;
}

.order-receipt {
    margin: 20px 0;
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.18);
}

.receipt-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--glass-border);
    font-size: 0.92rem;
}

.receipt-row:last-child {
    border-bottom: none;
}

.receipt-row span {
    color: var(--text-muted);
    flex-shrink: 0;
}

.receipt-row strong {
    color: var(--text-main);
    text-align: right;
    word-break: break-word;
}

.receipt-row--highlight {
    background: rgba(223, 187, 0, 0.08);
}

.receipt-row--highlight strong {
    color: var(--primary);
    font-size: 1.05rem;
}

.modal-notice-text {
    margin-top: 4px;
    padding: 14px 16px;
    border-radius: 12px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.22);
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
    text-align: left;
}

.modal-notice-text strong {
    color: var(--text-main);
}

.modal-close-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.modal-close-btn:hover {
    background: rgba(239, 68, 68, 0.16);
    border-color: rgba(239, 68, 68, 0.4);
    color: #fecaca;
}

.btn-zalo-modal {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    background: linear-gradient(135deg, #0068FF, #0056D2);
    color: #fff;
    border-radius: 12px;
    font-weight: 700;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    box-shadow: 0 4px 15px rgba(0, 104, 255, 0.3);
    text-decoration: none;
    width: 100%;
}

.btn-zalo-modal:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 104, 255, 0.4);
    background: linear-gradient(135deg, #0075FF, #0060E6);
    color: #fff;
}

.btn-zalo-modal i {
    font-size: 1.2rem;
}

/* ============================================
   FOOTER
   ============================================ */
.checkout-footer {
    padding: 20px 0;
    border-top: 1px solid var(--glass-border);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
    .checkout-grid {
        grid-template-columns: 1fr;
    }
    .order-summary {
        position: static;
        order: -1;
    }
    .summary-card {
        margin-bottom: 20px;
    }
}

@media (max-width: 600px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    .checkout-section {
        padding: 20px;
    }
    .summary-card {
        padding: 20px;
    }
    .checkout-progress {
        flex-wrap: wrap;
        gap: 6px;
    }
    .progress-step span {
        display: none;
    }
    .progress-line {
        width: 30px;
    }
    .header-flex {
        flex-direction: column;
        gap: 8px;
    }
    .total-price {
        font-size: 1.5rem;
    }
    .bank-label {
        min-width: 90px;
    }
    .modal-overlay {
        align-items: flex-end;
        padding: 8px;
    }
    .modal-content {
        padding: 20px 16px;
        border-radius: 16px 16px 12px 12px;
        max-width: 100%;
    }
    .payment-modal-content {
        max-height: 92vh;
    }
    .modal-header p {
        font-size: 0.88rem;
    }
    .info-row {
        gap: 8px;
        font-size: 0.85rem;
    }
    .highlight-row strong {
        font-size: 1rem;
    }
    .modal-footer {
        gap: 10px;
        padding-top: 10px;
    }
    .btn-paid-confirm,
    .btn-cancel-payment {
        flex: 1;
        padding: 12px;
        font-size: 0.92rem;
    }
    .btn-zalo-modal {
        font-size: 0.95rem;
        padding: 12px 16px;
    }
    .embedded-action {
        grid-template-columns: 1fr;
        align-items: flex-start;
        gap: 8px;
    }
    .embedded-price {
        font-size: 1.6rem;
    }
    .embedded-pricing-select {
        width: 100%;
        min-width: 0;
    }
}

.btn-view-lifetime-price {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    margin-top: 12px;
    padding: 10px 16px;
    border: 1px dashed rgba(223, 187, 0, 0.45);
    border-radius: var(--radius);
    background: rgba(223, 187, 0, 0.06);
    color: var(--primary);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}
.btn-view-lifetime-price:hover {
    background: rgba(223, 187, 0, 0.12);
    border-color: var(--primary);
}

.lifetime-price-modal-content {
    max-width: 420px;
    text-align: center;
}
.lifetime-unlock-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 20px 0 8px;
}
.lifetime-unlock-form input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    background: var(--bg-darker);
    color: #fff;
    font-size: 0.95rem;
}
.lifetime-unlock-form input:focus {
    outline: none;
    border-color: var(--primary);
}
.btn-view-price-submit {
    padding: 12px 16px;
    border: none;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--primary), #b89600);
    color: var(--bg-darker);
    font-weight: 700;
    cursor: pointer;
}
.lifetime-unlock-message {
    color: #EF4444;
    font-size: 0.85rem;
    margin-top: 8px;
}
.embedded-price-contact,
.pkg-price-contact {
    font-size: 1.4rem;
    letter-spacing: 0.02em;
}