/* HONGDOLABS SaaS Landing Page Stylesheet */
:root {
    --bg-main: #080C14;
    --bg-card: #111827;
    --bg-dark: #0B0F19;
    --cyan: #06b6d4;
    --cyan-glow: rgba(6, 182, 212, 0.35);
    --blue: #3b82f6;
    --purple: #a855f7;
    --pink: #ec4899;
    --emerald: #10b981;
    --amber: #f59e0b;
    --rose: #f43f5e;
    --text-white: #f8fafc;
    --text-slate: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.09);
    --border-cyan: rgba(6, 182, 212, 0.3);
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-white);
    font-family: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

button, input, select, textarea, .btn {
    font-family: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
}

.container {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography Helpers */
.cyan { color: var(--cyan); }
.blue { color: var(--blue); }
.purple { color: var(--purple); }
.pink { color: var(--pink); }
.green, .text-green { color: var(--emerald); }
.red, .text-red { color: var(--rose); }
.yellow, .text-yellow { color: var(--amber); }
.text-slate { color: var(--text-slate); }
.text-center { text-align: center; }
.font-mono { font-family: monospace; }
.font-black { font-weight: 900; }
.mb-2 { margin-bottom: 8px; }
.mt-1 { margin-top: 4px; }
.text-2xl { font-size: 24px; }
.text-xs { font-size: 12px; }

.gradient-text {
    background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.white-underline {
    color: #fff;
    text-decoration: underline;
    text-decoration-color: rgba(6, 182, 212, 0.5);
}

/* Header & Nav */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(8, 12, 20, 0.92);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    padding: 14px 0;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    flex-shrink: 0;
}

.logo-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(168, 85, 247, 0.2));
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 15px var(--cyan-glow);
    border: 1px solid var(--border-cyan);
    overflow: hidden;
    padding: 2px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.logo:hover .logo-icon {
    transform: scale(1.05);
    box-shadow: 0 0 22px rgba(6, 182, 212, 0.6);
}

.logo-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 8px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-size: 19px;
    font-weight: 900;
    color: #fff;
    letter-spacing: -0.5px;
    line-height: 1.1;
}

.brand-badge {
    font-size: 9px;
    font-weight: 800;
    color: var(--cyan);
    letter-spacing: 1px;
}

/* Wide Navigation Menu */
.nav-menu {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 22px;
    flex: 1;
}

.nav-link {
    color: var(--text-slate);
    text-decoration: none;
    font-size: 13.5px;
    font-weight: 600;
    white-space: nowrap;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.nav-link:hover {
    color: #fff;
}

.highlight-link {
    color: var(--cyan);
    font-weight: 700;
}

.nav-link-cta {
    background: linear-gradient(135deg, #0284c7 0%, #0d9488 100%);
    color: #fff !important;
    padding: 8px 16px;
    border-radius: 10px;
    font-weight: 700;
    box-shadow: 0 0 15px rgba(2, 132, 199, 0.3);
    margin-left: 6px;
}

.nav-link-cta:hover {
    box-shadow: 0 0 25px rgba(13, 148, 136, 0.6);
    transform: translateY(-1px);
}

.header-actions {
    display: flex;
    align-items: center;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 22px;
    cursor: pointer;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 700;
    font-family: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    text-decoration: none;
    white-space: nowrap;
    -webkit-font-smoothing: antialiased;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: #fff;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
}

.btn-glow {
    background: linear-gradient(135deg, #0284c7 0%, #0d9488 100%);
    color: #fff;
    box-shadow: 0 0 20px rgba(2, 132, 199, 0.4);
}

.btn-glow:hover {
    box-shadow: 0 0 30px rgba(13, 148, 136, 0.7);
    transform: translateY(-2px);
}

.btn-glass {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--border-color);
    color: #fff;
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-purple {
    background: linear-gradient(135deg, #9333ea, #6366f1);
    color: #fff;
}

.btn-blue {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: #fff;
}

.btn-gold {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #000;
    font-weight: 900;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
    border-radius: 14px;
}

.w-full { width: 100%; }

/* Hero */
.hero {
    position: relative;
    padding: 150px 0 90px 0;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 400px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.2) 0%, rgba(139, 92, 246, 0.15) 50%, transparent 70%);
    filter: blur(80px);
    pointer-events: none;
}

.hero-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.pill-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 18px;
    border-radius: 50px;
    background: rgba(17, 24, 39, 0.8);
    border: 1px solid var(--border-cyan);
    font-size: 13px;
    font-weight: 600;
    color: var(--cyan);
    margin-bottom: 24px;
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.1);
}

.pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 10px var(--cyan);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.3); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.8; }
}

.pill-highlight {
    color: var(--amber);
    font-weight: 800;
    padding-left: 8px;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-title {
    font-size: 56px;
    font-weight: 900;
    line-height: 1.15;
    text-align: center;
    max-width: 900px;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-slate);
    text-align: center;
    max-width: 800px;
    margin-bottom: 30px;
}

/* USP Card */
.usp-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: rgba(17, 24, 39, 0.85);
    border: 1px solid var(--border-cyan);
    padding: 20px 24px;
    border-radius: 20px;
    max-width: 820px;
    margin-bottom: 32px;
    text-align: left;
    backdrop-filter: blur(12px);
}

.usp-icon {
    font-size: 22px;
    color: var(--cyan);
    background: rgba(6, 182, 212, 0.15);
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.usp-content h4 {
    font-size: 16px;
    font-weight: 800;
    margin-bottom: 6px;
    color: #fff;
}

.badge-tag {
    font-size: 11px;
    font-family: monospace;
    background: rgba(16, 185, 129, 0.2);
    color: var(--emerald);
    padding: 2px 8px;
    border-radius: 6px;
    margin-left: 8px;
}

.usp-content p {
    font-size: 13.5px;
    color: var(--text-slate);
    line-height: 1.5;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 30px;
}

.platform-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 13px;
    color: var(--text-slate);
    margin-bottom: 50px;
}

.platform-chip {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    padding: 4px 12px;
    border-radius: 8px;
    color: #fff;
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    width: 100%;
    max-width: 1000px;
    margin-bottom: 50px;
}

.metric-card {
    background: rgba(17, 24, 39, 0.7);
    border: 1px solid var(--border-color);
    padding: 20px;
    border-radius: 20px;
    backdrop-filter: blur(12px);
    transition: all 0.3s;
}

.metric-card:hover {
    border-color: var(--border-cyan);
    transform: translateY(-3px);
}

.metric-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 11px;
    font-weight: 800;
    color: var(--text-slate);
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.metric-num {
    font-size: 28px;
    font-weight: 900;
    color: #fff;
    line-height: 1.2;
}

.metric-sub {
    font-size: 11px;
    margin-top: 4px;
    font-weight: 600;
}

/* Dashboard Screenshot Frame */
.dashboard-frame {
    width: 100%;
    max-width: 1000px;
    background: #0B0F19;
    border: 1px solid var(--border-cyan);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 0 40px rgba(6, 182, 212, 0.15);
}

.window-bar {
    background: #0F172A;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.window-dots {
    display: flex;
    align-items: center;
    gap: 8px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}
.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }

.url-text {
    font-family: monospace;
    font-size: 12px;
    color: var(--text-slate);
    margin-left: 12px;
}

.status-chip {
    font-size: 11px;
    font-weight: 700;
    color: var(--emerald);
    background: rgba(16, 185, 129, 0.15);
    padding: 4px 10px;
    border-radius: 6px;
}

.btn-icon {
    background: rgba(255, 255, 255, 0.08);
    border: none;
    color: #fff;
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
}

.screenshot-container {
    position: relative;
    cursor: pointer;
    overflow: hidden;
}

.screenshot-img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s;
}

.screenshot-container:hover .screenshot-img {
    transform: scale(1.01);
}

.screenshot-overlay {
    position: absolute;
    inset: 0;
    background: rgba(8, 12, 20, 0.4);
    opacity: 0;
    transition: opacity 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.screenshot-container:hover .screenshot-overlay {
    opacity: 1;
}

.overlay-btn {
    background: rgba(17, 24, 39, 0.9);
    border: 1px solid var(--cyan);
    color: var(--cyan);
    font-size: 14px;
    font-weight: 700;
    padding: 10px 20px;
    border-radius: 12px;
    backdrop-filter: blur(8px);
}

.frame-caption {
    padding: 12px 20px;
    background: rgba(15, 23, 42, 0.8);
    font-size: 12px;
    color: var(--text-slate);
    text-align: center;
    border-top: 1px solid var(--border-color);
}

/* Sections */
.mechanism-section, .features-section, .comparison-section, .calculator-section, .pricing-section, .faq-section {
    padding: 90px 0;
    border-top: 1px solid var(--border-color);
}

.section-header {
    max-width: 750px;
    margin: 0 auto 50px auto;
}

.section-header h2 {
    font-size: 40px;
    font-weight: 900;
    line-height: 1.2;
    margin: 12px 0;
}

.badge-amber, .badge-cyan {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 30px;
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
}
.badge-amber { background: rgba(245, 158, 11, 0.15); color: var(--amber); border: 1px solid rgba(245, 158, 11, 0.3); }
.badge-cyan { background: rgba(6, 182, 212, 0.15); color: var(--cyan); border: 1px solid var(--border-cyan); }

/* Mechanism Grid */
.mechanism-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 40px;
}

.card {
    background: rgba(17, 24, 39, 0.8);
    border-radius: 24px;
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card-bad { border: 1px solid rgba(244, 63, 94, 0.3); background: rgba(244, 63, 94, 0.03); }
.card-good { border: 1px solid var(--border-cyan); background: rgba(6, 182, 212, 0.04); box-shadow: 0 0 30px rgba(6, 182, 212, 0.08); }

.card-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 800;
    padding: 4px 12px;
    border-radius: 8px;
    margin-bottom: 16px;
}
.tag-bad { background: rgba(244, 63, 94, 0.2); color: var(--rose); }
.tag-good { background: rgba(6, 182, 212, 0.2); color: var(--cyan); }

.check-list {
    list-style: none;
    margin: 20px 0;
}
.check-list li {
    font-size: 14px;
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: #e2e8f0;
}

.card-footer {
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    font-size: 13px;
    font-weight: 700;
}
.footer-bad { color: var(--rose); }
.footer-good { color: var(--cyan); }

/* Steps */
.steps-card {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 20px;
    text-align: left;
}

.step-item {
    background: rgba(8, 12, 20, 0.6);
    border: 1px solid var(--border-color);
    padding: 20px;
    border-radius: 16px;
}

.step-num {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: rgba(6, 182, 212, 0.2);
    color: var(--cyan);
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}

/* Demo Simulator */
.demo-frame {
    background: #0B0F19;
    border: 1px solid var(--border-cyan);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 0 50px rgba(6, 182, 212, 0.15);
}

.demo-tabs-bar {
    background: #0F172A;
    padding: 10px 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-slate);
    padding: 10px 16px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
}

.tab-btn:hover { color: #fff; background: rgba(255, 255, 255, 0.05); }
.tab-btn.active { background: linear-gradient(135deg, #0284c7, #2563eb); color: #fff; }

.tab-panel {
    display: none;
    padding: 30px;
}
.tab-panel.active { display: block; }

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.panel-subtitle { font-size: 11px; font-weight: 800; color: var(--cyan); }
.panel-title { font-size: 24px; font-weight: 900; }
.chip-green { font-size: 12px; color: var(--emerald); background: rgba(16, 185, 129, 0.15); padding: 4px 12px; border-radius: 20px; font-weight: 700; }

.demo-metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.d-metric-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 16px;
    border-radius: 14px;
}
.d-label { font-size: 10px; font-weight: 800; color: var(--text-slate); }
.d-val { font-size: 22px; font-weight: 900; margin: 4px 0; }
.d-badge { font-size: 11px; font-weight: 700; padding: 2px 6px; border-radius: 4px; }
.d-badge.green { background: rgba(16, 185, 129, 0.2); color: var(--emerald); }
.d-badge.red { background: rgba(244, 63, 94, 0.2); color: var(--rose); }
.d-sub { font-size: 11px; color: var(--text-slate); }

.log-box {
    background: #080C14;
    border: 1px solid var(--border-color);
    padding: 16px;
    border-radius: 14px;
    font-family: monospace;
    font-size: 12px;
}
.log-title { font-weight: bold; margin-bottom: 8px; color: #fff; }
.log-line { padding: 4px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.04); }

.demo-form { display: flex; flex-direction: column; gap: 16px; margin-top: 20px; }
.form-group label { display: block; font-size: 12px; font-weight: 700; margin-bottom: 6px; }
.form-control {
    width: 100%;
    background: #080C14;
    border: 1px solid var(--border-color);
    padding: 12px 16px;
    border-radius: 10px;
    color: #fff;
    font-size: 14px;
}
.form-control:focus { outline: none; border-color: var(--cyan); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.read-only-box { background: #080C14; border: 1px solid var(--border-color); padding: 10px 14px; border-radius: 10px; font-size: 12px; }

.alert-success { background: rgba(16, 185, 129, 0.15); border: 1px solid var(--emerald); color: var(--emerald); padding: 12px 16px; border-radius: 10px; font-size: 13px; font-weight: 700; margin-top: 16px; }
.hidden { display: none !important; }

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature-card {
    background: rgba(17, 24, 39, 0.7);
    border: 1px solid var(--border-color);
    padding: 28px;
    border-radius: 20px;
    transition: all 0.3s;
}
.feature-card:hover { border-color: var(--border-cyan); transform: translateY(-4px); }

.f-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fff;
    margin-bottom: 20px;
}
.bg-cyan { background: var(--cyan); }
.bg-amber { background: var(--amber); }
.bg-purple { background: var(--purple); }
.bg-emerald { background: var(--emerald); }
.bg-rose { background: var(--rose); }
.bg-blue { background: var(--blue); }

.feature-card h3 { font-size: 18px; font-weight: 800; margin-bottom: 10px; }
.feature-card p { font-size: 13.5px; color: var(--text-slate); }

/* Comparison Table */
.table-wrapper {
    background: rgba(17, 24, 39, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    overflow-x: auto;
}

.comp-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    min-width: 650px;
}
.comp-table th, .comp-table td { padding: 18px 24px; border-bottom: 1px solid var(--border-color); }
.comp-table th { font-size: 13px; font-weight: 800; background: #0F172A; }
.comp-table .col-highlight { background: rgba(6, 182, 212, 0.08); border-x: 1px solid var(--border-cyan); }

/* Calculator */
.calc-box {
    background: rgba(17, 24, 39, 0.85);
    border: 1px solid var(--border-cyan);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 0 40px rgba(6, 182, 212, 0.1);
}
.calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; }
.range-group { margin-bottom: 24px; }
.range-label { display: flex; justify-content: space-between; font-size: 14px; font-weight: 700; margin-bottom: 8px; }
input[type=range] { width: 100%; height: 8px; border-radius: 4px; background: #080C14; outline: none; accent-color: var(--cyan); }
.info-pill { background: #080C14; border: 1px solid var(--border-color); padding: 12px; border-radius: 10px; font-size: 13px; color: var(--text-slate); }

.calc-results {
    background: #0B0F19;
    border: 1px solid var(--border-cyan);
    padding: 24px;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.res-item { border-bottom: 1px solid var(--border-color); padding-bottom: 12px; }
.res-label { font-size: 12px; color: var(--text-slate); font-weight: 700; }
.res-val { font-size: 26px; font-weight: 900; margin-top: 4px; }

/* Pricing */
.pricing-switcher {
    display: flex;
    justify-content: center;
    gap: 8px;
    background: #0F172A;
    padding: 6px;
    border-radius: 14px;
    width: fit-content;
    margin: 0 auto 40px auto;
    border: 1px solid var(--border-color);
}
.bill-btn {
    background: transparent;
    border: none;
    color: var(--text-slate);
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
}
.bill-btn.active { background: var(--cyan); color: #fff; }
.badge-save { font-size: 10px; background: rgba(16, 185, 129, 0.2); color: var(--emerald); padding: 2px 6px; border-radius: 4px; margin-left: 4px; }
.badge-save.gold { background: #f59e0b; color: #000; font-weight: 900; }

.pricing-grid {
    display: flex;
    justify-content: center;
    max-width: 700px;
    margin: 0 auto;
}
.price-card {
    position: relative;
    background: linear-gradient(180deg, #111827 0%, #0B0F19 100%);
    border: 2px solid var(--amber);
    border-radius: 28px;
    padding: 40px;
    box-shadow: 0 0 50px rgba(245, 158, 11, 0.15);
    width: 100%;
}
.best-seller-badge {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--amber), #facc15);
    color: #000;
    font-size: 12px;
    font-weight: 900;
    padding: 6px 20px;
    border-radius: 30px;
}
.price-box { margin: 20px 0; background: #080C14; padding: 16px; border-radius: 16px; text-align: center; }
.price-amount { font-size: 42px; font-weight: 900; color: #fff; }
.price-amount small { font-size: 14px; color: var(--text-slate); }
.price-note { font-size: 12px; color: var(--emerald); font-weight: 700; margin-top: 4px; }
.p-limit { font-size: 12px; font-weight: 900; color: var(--amber); letter-spacing: 1px; margin-bottom: 20px; text-align: center; }
.p-features { list-style: none; margin-bottom: 30px; }
.p-features li { font-size: 14px; margin-bottom: 12px; display: flex; align-items: flex-start; gap: 10px; }

/* FAQ */
.search-box { position: relative; margin-bottom: 24px; }
.search-icon { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--text-slate); }
.search-input { width: 100%; background: #0F172A; border: 1px solid var(--border-color); padding: 14px 14px 14px 44px; border-radius: 14px; color: #fff; font-size: 14px; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: rgba(17, 24, 39, 0.7); border: 1px solid var(--border-color); border-radius: 16px; overflow: hidden; }
.faq-question { padding: 18px 20px; font-weight: 700; font-size: 15px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.q-badge { background: rgba(6, 182, 212, 0.2); color: var(--cyan); padding: 2px 8px; border-radius: 6px; margin-right: 8px; font-size: 12px; }
.faq-answer { padding: 0 20px 20px 20px; font-size: 14px; color: var(--text-slate); display: none; line-height: 1.6; border-top: 1px solid var(--border-color); padding-top: 12px; }
.faq-item.active .faq-answer { display: block; }
.faq-item.active .faq-arrow { transform: rotate(180deg); color: var(--cyan); }

/* Footer */
.footer { background: #04060A; padding: 60px 0 40px 0; border-top: 1px solid var(--border-color); }
.footer-cta { background: linear-gradient(135deg, #111827, #0B0F19); border: 1px solid var(--border-cyan); padding: 40px; border-radius: 24px; display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 40px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--text-slate); border-top: 1px solid var(--border-color); padding-top: 20px; }
.footer-copy { display: flex; align-items: center; gap: 10px; }
.footer-logo-img { width: 24px; height: 24px; border-radius: 6px; object-fit: contain; box-shadow: 0 0 8px var(--cyan-glow); }
.modal-logo-img { width: 20px; height: 20px; border-radius: 5px; vertical-align: middle; margin-right: 6px; object-fit: contain; box-shadow: 0 0 6px var(--cyan-glow); }
.btn-text { background: none; border: none; color: var(--text-slate); cursor: pointer; font-size: 13px; }

/* Modals & Zalo QR Styling */
.modal-overlay { position: fixed; inset: 0; z-index: 200; background: rgba(0, 0, 0, 0.85); backdrop-filter: blur(8px); display: flex; align-items: center; justify-content: center; padding: 20px; }
.modal-card { background: #0E1526; border: 1px solid var(--border-cyan); border-radius: 24px; padding: 32px; max-width: 500px; width: 100%; position: relative; }
.zalo-modal-card { max-width: 480px; box-shadow: 0 0 50px rgba(6, 182, 212, 0.25); }

.zalo-qr-wrapper {
    background: #ffffff;
    padding: 16px;
    border-radius: 20px;
    display: inline-block;
    margin: 20px 0 16px 0;
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.2);
}

.zalo-qr-img {
    width: 220px;
    height: 220px;
    display: block;
    border-radius: 12px;
}

.zalo-instructions {
    background: rgba(8, 12, 20, 0.7);
    border: 1px solid var(--border-color);
    padding: 16px;
    border-radius: 16px;
    text-align: left;
    margin-bottom: 16px;
}

.zalo-step {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    margin-bottom: 8px;
    color: #e2e8f0;
}
.zalo-step:last-child { margin-bottom: 0; }
.zalo-step i { font-size: 16px; width: 20px; text-align: center; }

.modal-footer-notes {
    font-size: 11px;
    color: var(--text-slate);
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
}

.modal-lg { max-width: 950px; }
.modal-close { position: absolute; top: 16px; right: 16px; background: rgba(255, 255, 255, 0.08); border: none; color: #fff; width: 32px; height: 32px; border-radius: 8px; cursor: pointer; }
.modal-header h3 { font-size: 22px; font-weight: 900; margin: 8px 0; }
.modal-header p { font-size: 13px; color: var(--text-slate); margin-bottom: 20px; }

.qr-box { background: #080C14; border: 1px solid var(--border-cyan); padding: 16px; border-radius: 14px; display: flex; align-items: center; gap: 16px; text-align: left; margin: 16px 0; }
.full-img { width: 100%; height: auto; border-radius: 12px; }
.modal-bar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; font-weight: 700; font-size: 14px; }

/* Target Audience & Advanced Tech Matrix Styles */
.audience-section {
    padding: 90px 0;
    border-top: 1px solid var(--border-color);
    background: linear-gradient(180deg, rgba(8, 12, 20, 0.6) 0%, rgba(17, 24, 39, 0.9) 100%);
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.audience-card {
    background: rgba(17, 24, 39, 0.85);
    border: 1px solid var(--border-color);
    border-radius: 22px;
    padding: 30px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.audience-card:hover {
    border-color: var(--border-cyan);
    transform: translateY(-4px);
    box-shadow: 0 0 35px rgba(6, 182, 212, 0.12);
}

.audience-num {
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 42px;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.05);
    font-family: monospace;
}

.audience-icon {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 20px;
    color: #fff;
}

.audience-card h3 {
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 12px;
    color: #fff;
    line-height: 1.3;
}

.audience-card p {
    font-size: 13.5px;
    color: var(--text-slate);
    line-height: 1.6;
}

.tech-tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 12px;
}

.tech-tag {
    font-size: 11px;
    font-family: monospace;
    background: rgba(6, 182, 212, 0.12);
    color: var(--cyan);
    padding: 3px 8px;
    border-radius: 6px;
    border: 1px solid rgba(6, 182, 212, 0.2);
}

/* Modals Mobile Scrollable Fix */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.88);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    overflow-y: auto;
}

.modal-card {
    background: #0E1526;
    border: 1px solid var(--border-cyan);
    border-radius: 24px;
    padding: 32px;
    max-width: 500px;
    width: 100%;
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

/* Responsive Media Queries */
@media (max-width: 1200px) {
    .container { max-width: 960px; }
    .nav-menu { gap: 14px; }
    .nav-link { font-size: 12.5px; }
}

@media (max-width: 992px) {
    .container { max-width: 720px; }
    .hero-title { font-size: 40px; }
    .metrics-grid { grid-template-columns: repeat(2, 1fr); }
    .mechanism-grid { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .audience-grid { grid-template-columns: repeat(2, 1fr); }
    .calc-grid { grid-template-columns: 1fr; }
    .footer-cta { flex-direction: column; text-align: center; }

    /* Override inline grid spans on tablets & mobile */
    .feature-card[style*="grid-column"], .audience-card[style*="grid-column"] {
        grid-column: span 1 / span 1 !important;
    }

    .mobile-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 42px;
        height: 42px;
        border-radius: 10px;
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid var(--border-color);
        color: #fff;
        font-size: 20px;
        cursor: pointer;
        transition: all 0.2s ease;
    }

    .mobile-toggle:hover {
        background: rgba(255, 255, 255, 0.15);
        border-color: var(--cyan);
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: calc(100% + 14px);
        left: -20px;
        right: -20px;
        background: rgba(11, 15, 25, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border-cyan);
        border-top: 1px solid var(--border-color);
        padding: 16px 20px;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.85);
        z-index: 999;
    }

    .nav-menu.active {
        display: flex !important;
        animation: fadeInDown 0.25s ease-out forwards;
    }

    .nav-link {
        font-size: 15px;
        padding: 12px 16px;
        border-radius: 10px;
        width: 100%;
        justify-content: flex-start;
        border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        color: #e2e8f0;
    }

    .nav-link:hover {
        background: rgba(255, 255, 255, 0.06);
        color: var(--cyan);
    }

    .nav-link-cta {
        margin-left: 0;
        margin-top: 8px;
        justify-content: center;
        padding: 14px 20px;
        font-size: 15px;
        width: 100%;
    }

    /* Scrollable Demo Tabs Bar */
    .demo-tabs-bar {
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding: 10px 12px;
        gap: 6px;
        scrollbar-width: none;
    }
    .demo-tabs-bar::-webkit-scrollbar { display: none; }
    .tab-btn { flex-shrink: 0; }
}

@media (max-width: 768px) {
    .container { padding: 0 16px; }
    .hero { padding: 120px 0 60px 0; }
    .hero-title { font-size: 32px; }
    .hero-subtitle { font-size: 15px; }
    .hero-actions { flex-direction: column; width: 100%; gap: 12px; }
    .btn-lg { width: 100%; font-size: 15px; padding: 14px 20px; }
    .features-grid { grid-template-columns: 1fr; }
    .audience-grid { grid-template-columns: 1fr; }
    .demo-metrics-grid { grid-template-columns: 1fr 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .mechanism-section, .features-section, .comparison-section, .calculator-section, .pricing-section, .faq-section, .audience-section {
        padding: 65px 0;
    }
    .section-header h2 { font-size: 28px; }
    .calc-box { padding: 24px 16px; }
    .price-card { padding: 32px 20px; }
    .price-amount { font-size: 36px; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 26px; }
    .pill-badge { font-size: 11px; padding: 6px 12px; }
    .pill-highlight { display: block; margin-top: 4px; border-left: none; padding-left: 0; }
    .metrics-grid { grid-template-columns: 1fr; gap: 12px; }
    .demo-metrics-grid { grid-template-columns: 1fr; }
    .price-amount { font-size: 30px; }
    .zalo-qr-img { width: 180px; height: 180px; }
    .modal-card { padding: 24px 16px; }
}