/* ==========================================================================
   KC Maps CSS - Premium Elegant & Minimalist Theme
   Inspired by Sage & Modern Muse Aesthetics
   ========================================================================== */

/* --- CSS VARIABLES & SYSTEM DESIGN --- */
:root {
    /* Color Palette */
    --color-bg-base: #FAF9F6;       /* Alabaster Warm Cream */
    --color-bg-alt: #F4F0EA;        /* Soft Warm Stone */
    --color-text-main: #2E2A25;     /* Dark Charcoal Bronze */
    --color-text-muted: #6E685E;    /* Soft Muted Taupe */
    --color-primary: #1E2132;       /* Deep Midnight Navy */
    --color-accent-gold: #C5A880;   /* Luxurious Muted Gold */
    --color-accent-gold-dark: #A68A62;
    --color-emerald: #2E7D32;       /* Elegant Forest Green */
    --color-emerald-light: #E8F5E9;
    --color-danger: #C62828;        /* Soft Crimson Red */
    --color-danger-light: #FFEBEE;
    --color-grey-light: #EEEEEE;
    --color-white: #FFFFFF;
    
    /* Typography */
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Be Vietnam Pro', -apple-system, sans-serif;
    --font-mono: 'Roboto Mono', monospace;

    /* Transitions & Borders */
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --border-radius-sm: 6px;
    --border-radius-md: 12px;
    --border-radius-lg: 24px;
    --box-shadow-soft: 0 10px 40px rgba(46, 42, 37, 0.05);
    --box-shadow-medium: 0 20px 50px rgba(46, 42, 37, 0.1);
    --box-shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.06);
}

/* --- RESET & BASE STYLES --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    background-color: var(--color-bg-base);
    color: var(--color-text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.max-w-xl {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* --- TYPOGRAPHY --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.2;
    color: var(--color-primary);
}

p {
    font-size: 1rem;
    font-weight: 300;
}

.font-semibold { font-weight: 500; }
.font-bold { font-weight: 700; }
.text-center { text-align: center; }
.text-danger { color: var(--color-danger) !important; }
.text-emerald { color: var(--color-emerald) !important; }
.text-muted { color: var(--color-text-muted) !important; }
.text-dark { color: var(--color-primary) !important; }
.text-gold { color: var(--color-accent-gold) !important; }

/* --- BUTTONS --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-decoration: none;
    border-radius: 50px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition-smooth);
    gap: 8px;
}

.btn-sm {
    padding: 10px 20px;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: var(--color-accent-gold-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-secondary:hover {
    background-color: rgba(30, 33, 50, 0.05);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border-color: rgba(30, 33, 50, 0.2);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    background-color: rgba(30, 33, 50, 0.03);
}

.btn-light {
    background-color: var(--color-white);
    color: var(--color-primary);
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.btn-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.btn-emerald {
    background-color: var(--color-emerald);
    color: var(--color-white);
}

.btn-emerald:hover {
    background-color: #1b5e20;
    transform: translateY(-2px);
}

.btn-block {
    display: flex;
    width: 100%;
}

.bg-zalo {
    background-color: #0068FF !important;
    color: var(--color-white) !important;
    border-color: #0068FF !important;
}
.bg-zalo:hover {
    background-color: #0050c7 !important;
    transform: translateY(-2px);
}

/* --- HEADER & NAVIGATION --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(250, 249, 246, 0.85);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(46, 42, 37, 0.05);
    transition: var(--transition-smooth);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    text-decoration: none;
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--color-primary);
}

.logo-dot {
    color: var(--color-accent-gold);
}

.main-nav {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--color-text-main);
    text-decoration: none;
    position: relative;
    padding: 6px 0;
    transition: var(--transition-smooth);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent-gold);
    transition: var(--transition-smooth);
}

.nav-link:hover {
    color: var(--color-accent-gold-dark);
}

.nav-link:hover::after {
    width: 100%;
}

.mobile-nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.mobile-nav-toggle .bar {
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
    transition: var(--transition-smooth);
}

/* --- HERO SECTION --- */
.hero-section {
    padding: 160px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background-color: var(--color-bg-alt);
    color: var(--color-text-muted);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-radius: 50px;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: 40px;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

.hero-media {
    position: relative;
}

.media-wrapper {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: visible;
    box-shadow: var(--box-shadow-medium);
}

.hero-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--border-radius-lg);
    object-fit: cover;
}

.floating-badge {
    position: absolute;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 16px 24px;
    border-radius: var(--border-radius-md);
    box-shadow: 0 15px 35px rgba(46, 42, 37, 0.1);
    display: flex;
    align-items: center;
    gap: 14px;
    z-index: 10;
    animation: float 6s ease-in-out infinite;
}

.badge-top-right {
    top: -20px;
    right: -20px;
}

.badge-bottom-left {
    bottom: -20px;
    left: -20px;
    animation-delay: -3s;
}

.floating-badge i {
    font-size: 1.5rem;
}

.floating-badge div {
    display: flex;
    flex-direction: column;
}

.floating-badge strong {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--color-primary);
}

.floating-badge span {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

/* --- SECTION GENERAL STYLES --- */
section {
    padding: 100px 0;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-accent-gold-dark);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.section-description {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    margin-bottom: 60px;
}

/* --- GRID SYSTEM --- */
.grid {
    display: grid;
    gap: 30px;
}

.grid-2col { grid-template-columns: repeat(2, 1fr); }
.grid-3col { grid-template-columns: repeat(3, 1fr); }
.grid-4col { grid-template-columns: repeat(4, 1fr); }
.gap-lg { gap: 40px; }
.align-stretch { align-items: stretch; }

/* --- PROBLEM SECTION --- */
.problem-section {
    background-color: var(--color-bg-alt);
}

.info-card {
    background-color: var(--color-white);
    padding: 40px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-soft);
    border: 1px solid rgba(46, 42, 37, 0.02);
    transition: var(--transition-smooth);
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-medium);
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--color-bg-alt);
    color: var(--color-accent-gold-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 28px;
}

.card-title {
    font-size: 1.4rem;
    margin-bottom: 16px;
}

.card-text {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* --- INTERACTIVE SIMULATOR SECTION --- */
.demo-section {
    background-color: var(--color-bg-base);
}

.simulator-input-box {
    display: flex;
    max-width: 750px;
    margin: 0 auto 50px;
    background-color: var(--color-white);
    border-radius: 50px;
    padding: 8px;
    box-shadow: var(--box-shadow-soft);
    border: 1px solid rgba(46, 42, 37, 0.06);
}

.simulator-input-box input {
    flex-grow: 1;
    border: none;
    background: transparent;
    padding: 0 24px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--color-primary);
    outline: none;
}

.simulator-input-box input::placeholder {
    color: var(--color-text-muted);
    opacity: 0.6;
}

.simulator-input-box button {
    border-radius: 50px;
    white-space: nowrap;
}

.simulator-grid {
    max-width: 1000px;
    margin: 0 auto;
}

.map-mockup {
    background-color: var(--color-white);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-soft);
    border: 1px solid rgba(46, 42, 37, 0.05);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.mockup-header {
    padding: 20px 24px;
    border-bottom: 1px solid rgba(46, 42, 37, 0.05);
}

.status-indicator {
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.mockup-status-desc {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

.mockup-card {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    flex-grow: 1;
}

/* Simulated Map Graphic */
.mockup-map-visual {
    height: 140px;
    border-radius: var(--border-radius-sm);
    position: relative;
    overflow: hidden;
}

.bg-grey-pattern {
    background-color: #EAEAEA;
    background-image: radial-gradient(#d3d3d3 1px, transparent 0), radial-gradient(#d3d3d3 1px, #EAEAEA 0);
    background-size: 20px 20px;
    background-position: 0 0, 10px 10px;
}

.bg-emerald-pattern {
    background-color: #E8F5E9;
    background-image: radial-gradient(#c8e6c9 1px, transparent 0), radial-gradient(#c8e6c9 1px, #E8F5E9 0);
    background-size: 20px 20px;
    background-position: 0 0, 10px 10px;
}

.map-marker-grey, .map-marker-red {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2.2rem;
}

.map-marker-grey { color: #9E9E9E; }
.map-marker-red { color: #E53935; }

.map-route-line {
    position: absolute;
    top: 50%;
    left: 10%;
    width: 40%;
    height: 4px;
    background-color: #1976D2;
    border-radius: 2px;
    transform: rotate(20deg);
}

.mockup-biz-name {
    font-size: 1.3rem;
    font-family: var(--font-serif);
    margin-bottom: 6px;
    transition: var(--transition-smooth);
}

.verified-badge {
    color: #1E88E5;
    font-size: 1.1rem;
}

.biz-name-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.mockup-rating {
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 4px;
    margin-bottom: 12px;
}

.rating-value {
    font-weight: 600;
    color: var(--color-primary);
}

.rating-count {
    color: var(--color-text-muted);
}

.mockup-info-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mockup-info-list p {
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.mockup-info-list i {
    width: 16px;
    text-align: center;
}

.badge-quick {
    font-size: 0.7rem;
    padding: 2px 8px;
    background-color: var(--color-bg-alt);
    border-radius: 4px;
    color: var(--color-text-muted);
}

.mockup-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 10px;
}

.tag-badge {
    font-size: 0.75rem;
    padding: 4px 10px;
    background-color: var(--color-grey-light);
    color: var(--color-text-muted);
    border-radius: 4px;
}

.badge-active {
    background-color: var(--color-emerald-light);
    color: var(--color-emerald);
}

.mockup-analysis {
    padding: 16px 24px;
    font-size: 0.8rem;
    background-color: #FAFAFA;
    border-top: 1px solid rgba(46, 42, 37, 0.05);
    display: flex;
    align-items: center;
    gap: 10px;
}

.animate-bounce {
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translate(-50%, -50%) translateY(0); }
    50% { transform: translate(-50%, -50%) translateY(-10px); }
}

/* --- PRICING SECTION --- */
.pricing-section {
    background-color: var(--color-bg-alt);
}

.pricing-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-soft);
    border: 1px solid rgba(46, 42, 37, 0.03);
    position: relative;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-medium);
}

.pricing-card.featured {
    border: 2px solid var(--color-accent-gold);
    transform: scale(1.03);
    z-index: 2;
}
.pricing-card.featured:hover {
    transform: scale(1.03) translateY(-5px);
}

.featured-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-accent-gold-dark);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 6px 18px;
    border-radius: 50px;
    white-space: nowrap;
}

.card-inner {
    padding: 32px 20px;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.price-header {
    margin-bottom: 20px;
}

.package-name {
    display: block;
    font-size: 0.72rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-muted);
    margin-bottom: 8px;
    font-family: var(--font-sans);
}

.package-price {
    font-size: 2.1rem;
    font-family: var(--font-serif);
    margin-bottom: 8px;
    white-space: nowrap;
}

.package-price .currency {
    font-size: 0.95rem;
    font-weight: 400;
    vertical-align: super;
    margin-left: 2px;
}

.package-desc {
    color: var(--color-text-muted);
    font-size: 0.75rem;
    font-family: var(--font-sans);
    line-height: 1.5;
}

.package-features {
    list-style: none;
    margin-bottom: 30px;
    flex-grow: 1;
    font-family: var(--font-sans);
}

.package-features li {
    font-size: 0.75rem;
    font-weight: 300;
    color: var(--color-text-main);
    padding: 8px 0;
    border-bottom: 1px solid rgba(46, 42, 37, 0.04);
    display: flex;
    align-items: center;
    gap: 10px;
}

.package-features li i {
    font-size: 0.95rem;
}

.package-features li.disabled {
    color: var(--color-text-muted);
    opacity: 0.5;
    text-decoration: line-through;
}

.package-features li .fa-check { color: var(--color-emerald); }
.package-features li .fa-xmark { color: var(--color-danger); }

/* --- INTERACTIVE MOCK CHECKOUT MODAL --- */
.checkout-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: none; /* Controlled by JS */
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(30, 33, 50, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    background-color: var(--color-bg-base);
    width: 100%;
    max-width: 900px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-medium);
    border: 1px solid rgba(255, 255, 255, 0.8);
    position: relative;
    z-index: 10;
    overflow: hidden;
    animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: transparent;
    border: none;
    font-size: 1.4rem;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: var(--transition-smooth);
    z-index: 12;
}

.modal-close:hover {
    color: var(--color-primary);
}

.modal-body {
    padding: 40px;
    position: relative;
}

.checkout-header {
    text-align: center;
    margin-bottom: 30px;
}

.checkout-icon {
    display: inline-flex;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--color-bg-alt);
    color: var(--color-accent-gold-dark);
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.checkout-header h3 {
    font-size: 1.8rem;
    margin-bottom: 6px;
}

.checkout-header p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* Modal Grid Layout */
.checkout-layout {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 40px;
    transition: var(--transition-smooth);
}

.checkout-subtitle {
    font-size: 1.1rem;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(46, 42, 37, 0.08);
    padding-bottom: 8px;
}

/* Forms */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--color-primary);
}

.form-group label .required {
    color: var(--color-danger);
}

.form-group input {
    width: 100%;
    padding: 12px 18px;
    border-radius: var(--border-radius-sm);
    border: 1px solid rgba(46, 42, 37, 0.15);
    background-color: var(--color-white);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--color-primary);
    outline: none;
    transition: var(--transition-smooth);
}

.form-group input:focus {
    border-color: var(--color-primary);
}

.error-msg {
    display: none;
    font-size: 0.75rem;
    color: var(--color-danger);
    margin-top: 4px;
}

/* Bill Summary */
.bill-summary {
    background-color: var(--color-bg-alt);
    padding: 20px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 24px;
}

.bill-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    padding: 4px 0;
}

.bill-row strong {
    font-family: var(--font-sans);
}

/* Payment Guide */
.checkout-payment-guide {
    position: relative;
    border-left: 1px solid rgba(46, 42, 37, 0.08);
    padding-left: 40px;
}

.guide-lock-overlay {
    position: absolute;
    top: 0;
    left: 40px;
    width: calc(100% - 40px);
    height: 100%;
    background-color: rgba(250, 249, 246, 0.95);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 30px;
    transition: var(--transition-smooth);
}

.overlay-text {
    max-width: 250px;
}

.overlay-text i {
    font-size: 2rem;
    color: var(--color-text-muted);
    margin-bottom: 12px;
}

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

.qr-container-box {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.qr-title-box {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.qr-display-wrapper {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto;
    background-color: var(--color-white);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--box-shadow-soft);
    padding: 10px;
    border: 1px solid rgba(46, 42, 37, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-code-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.qr-loading-spinner {
    position: absolute;
    background-color: var(--color-white);
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.spinner-circle {
    width: 30px;
    height: 30px;
    border: 2px solid rgba(46, 42, 37, 0.1);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.payment-details-table {
    display: flex;
    flex-direction: column;
    gap: 8px;
    background-color: var(--color-bg-alt);
    padding: 16px;
    border-radius: var(--border-radius-sm);
}

.details-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
}

.details-row .label {
    color: var(--color-text-muted);
}

.details-row .value {
    color: var(--color-primary);
    font-family: var(--font-sans);
}

.details-row .code-style {
    font-family: var(--font-mono);
    background-color: var(--color-white);
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid rgba(0,0,0,0.05);
}

.select-all {
    user-select: all;
    -webkit-user-select: all;
    cursor: pointer;
}

.helper-text {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    text-align: center;
    margin-top: 6px;
}

/* Payment Success State (Absolute Overlay) */
.checkout-success-state {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg-base);
    z-index: 100;
    display: none; /* Controlled by JS */
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 40px;
    animation: fadeIn 0.4s ease-out;
}

/* Success Checkmark Animation */
.success-icon-animate {
    margin-bottom: 24px;
}

.checkmark-circle {
    width: 80px;
    height: 80px;
    position: relative;
    border-radius: 50%;
    border: 4px solid var(--color-emerald);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: scaleIn 0.3s ease-out;
}

.checkmark-stem {
    width: 4px;
    height: 35px;
    background-color: var(--color-emerald);
    position: absolute;
    left: 42px;
    top: 15px;
    transform: rotate(45deg);
    border-radius: 2px;
}

.checkmark-kick {
    width: 20px;
    height: 4px;
    background-color: var(--color-emerald);
    position: absolute;
    left: 28px;
    top: 42px;
    transform: rotate(45deg);
    border-radius: 2px;
}

@keyframes scaleIn {
    0% { transform: scale(0); }
    100% { transform: scale(1); }
}

.checkout-success-state h3 {
    font-size: 2rem;
    color: var(--color-emerald);
    margin-bottom: 16px;
}

.success-desc {
    font-size: 1rem;
    max-width: 500px;
    margin-bottom: 12px;
}

.success-action-desc {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    max-width: 460px;
    margin-bottom: 30px;
}

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

@keyframes slideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* --- FAQ SECTION --- */
.faq-section {
    background-color: var(--color-bg-base);
}

.faq-accordion {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background-color: var(--color-white);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-soft);
    border: 1px solid rgba(46, 42, 37, 0.03);
    overflow: hidden;
    transition: var(--transition-smooth);
}

.faq-trigger {
    width: 100%;
    padding: 24px 30px;
    background: transparent;
    border: none;
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 500;
    color: var(--color-primary);
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    outline: none;
    transition: var(--transition-smooth);
}

.faq-trigger:hover {
    color: var(--color-accent-gold-dark);
}

.faq-icon {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    transition: transform 0.3s ease;
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-content p {
    padding: 0 30px 24px;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* Active FAQ styling controlled by JS */
.faq-item.active {
    border-color: rgba(46, 42, 37, 0.1);
}

.faq-item.active .faq-trigger {
    color: var(--color-accent-gold-dark);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

/* --- BOTTOM CTA BANNER SECTION --- */
.cta-banner-section {
    background-color: var(--color-primary);
    color: var(--color-bg-base);
    padding: 100px 0;
    text-align: center;
}

.cta-title {
    font-size: 2.8rem;
    color: var(--color-bg-base);
    margin-bottom: 20px;
}

.cta-desc {
    font-size: 1.1rem;
    color: rgba(250, 249, 246, 0.8);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* --- FOOTER --- */
.site-footer {
    background-color: #12131D; /* Extremely dark navy */
    color: #A5A7B3;
    padding: 80px 0 0;
    font-size: 0.85rem;
}

.footer-container {
    display: grid;
    grid-template-columns: 1.5fr 0.8fr 1.2fr;
    gap: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-brand .logo {
    display: inline-block;
    margin-bottom: 20px;
}

.footer-brand .logo-text {
    color: var(--color-bg-base);
}

.brand-desc {
    line-height: 1.6;
    max-width: 320px;
}

.footer-links h4, .footer-contact h4 {
    color: var(--color-bg-base);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: #A5A7B3;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer-links a:hover {
    color: var(--color-bg-base);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contact p {
    font-size: 0.85rem;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.footer-contact i {
    margin-top: 4px;
    color: var(--color-accent-gold);
}

.footer-bottom {
    padding: 30px 0;
}

.footer-bottom-container {
    display: flex;
    justify-content: space-between;
    color: #6E707A;
    font-size: 0.8rem;
}

.legal-links {
    display: flex;
    gap: 20px;
}

.legal-links a {
    color: #6E707A;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.legal-links a:hover {
    color: #A5A7B3;
}

/* --- FIXED FLOATING ACTION BUTTONS --- */
.floating-actions {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    z-index: 1000;
}

.float-btn {
    width: 54px;
    height: 54px;
    border-radius: 50%;
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    text-decoration: none;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
    position: relative;
    transition: var(--transition-smooth);
}

.float-zalo {
    background-color: #0068FF;
}

.float-phone {
    background-color: var(--color-primary);
}

.float-btn:hover {
    transform: scale(1.1);
}

.float-tooltip {
    position: absolute;
    right: 70px;
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 6px 14px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.float-tooltip::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    border-width: 6px 0 6px 6px;
    border-style: solid;
    border-color: transparent transparent transparent var(--color-primary);
}

.float-btn:hover .float-tooltip {
    opacity: 1;
    visibility: visible;
}

/* --- ANIMATION CLASS FOR SCROLL --- */
.reveal-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-item.active {
    opacity: 1;
    transform: translateY(0);
}

/* --- RESPONSIVE MEDIA QUERIES --- */
@media screen and (max-width: 1024px) {
    html { font-size: 15px; }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-media {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .pricing-card.featured {
        transform: scale(1);
    }
    
    .pricing-card.featured:hover {
        transform: translateY(-5px);
    }
    
    .grid-3col, .grid-4col {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-container {
        grid-template-columns: 1.2fr 0.8fr 1fr;
    }
}

@media screen and (max-width: 768px) {
    .main-nav {
        display: none; /* Controlled by mobile menu JS if implemented */
    }
    
    .mobile-nav-toggle {
        display: flex;
    }
    
    .grid-2col, .grid-3col, .grid-4col {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .section-title {
        font-size: 2.1rem;
    }
    
    .checkout-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .checkout-payment-guide {
        border-left: none;
        border-top: 1px solid rgba(46, 42, 37, 0.08);
        padding-left: 0;
        padding-top: 30px;
    }
    
    .guide-lock-overlay {
        left: 0;
        width: 100%;
        height: 100%;
        padding-top: 50px;
    }
    
    .modal-body {
        padding: 30px 20px;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom-container {
        flex-direction: column;
        align-items: center;
        gap: 15px;
        text-align: center;
    }
}