/* ============================
   ABANO Giveaway Landing Page
   Design System matching Sales Page exactly
   ============================ */

/* CSS Variables */
:root {
    /* Colors - matching Sales page exactly */
    --color-navy: #151F6D;
    --color-navy-light: #1a2779;
    --color-navy-dark: #071D49;
    --color-yellow: #fef5e7;
    --color-gold: #FFCB45;
    --color-gold-dark: #e6b73e;
    --color-powder-blue: #D1DDE6;
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    --color-success: #10b981;
    --color-error: #ef4444;

    /* Typography - matching Sales page */
    --font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-family-title: 'Montserrat', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-premium: 0 10px 40px -10px rgba(7, 29, 73, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-700);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ============================
   Header & Navigation
   ============================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

/* LP Switcher Bar */
.lp-switcher-bar {
    background: var(--color-navy);
    padding: var(--space-2) 0;
}

.lp-switcher {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    background: rgba(255, 255, 255, 0.1);
    padding: var(--space-1);
    border-radius: var(--radius-full);
    max-width: fit-content;
    margin: 0 auto;
}

.switcher-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-5);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-300);
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.switcher-btn:hover {
    color: var(--color-white);
    background: rgba(255, 255, 255, 0.1);
}

.switcher-btn.active {
    color: var(--color-navy);
    background: var(--color-yellow);
    box-shadow: var(--shadow-md);
}

.switcher-btn svg {
    flex-shrink: 0;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.nav-logo-container {
    flex-shrink: 0;
    cursor: pointer;
    height: 2.5rem;
    aspect-ratio: 795/217;
}

@media (min-width: 640px) {
    .nav-logo-container {
        height: 3rem;
    }
}

.nav-logo-img {
    height: 100%;
    width: auto;
    object-fit: contain;
}

.logo-text {
    font-family: var(--font-family-title);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-navy);
    letter-spacing: -0.02em;
}

.nav-menu {
    display: flex;
    gap: var(--space-8);
    margin-left: auto;
    margin-right: var(--space-8);
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-600);
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-navy);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-navy);
    transition: var(--transition-fast);
}

/* ============================
   Buttons
   ============================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.625rem 1.5rem;
    /* py-2.5 px-6 */
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: 700;
    /* font-bold */
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    box-shadow: var(--shadow-lg);
}

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

.btn-primary:hover {
    background: var(--color-deep-navy);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-navy);
    border-color: var(--color-gray-200);
}

.btn-secondary:hover {
    border-color: var(--color-navy);
    background: var(--color-gray-50);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-base);
}

.btn-full {
    width: 100%;
}

/* ============================
   Badge
   ============================ */
.badge {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--color-yellow);
    color: var(--color-gold-dark);
    border-radius: var(--radius-full);
}

.badge-light {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-yellow);
}

/* ============================
   Hero Section
   ============================ */
.hero {
    position: relative;
    padding: calc(72px + var(--space-16)) 0 var(--space-24);
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-gray-50) 100%);
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: center;
    position: relative;
    z-index: 5;
}

.hero-text {
    max-width: 560px;
    position: relative;
    z-index: 5;
}

.hero-title {
    font-family: var(--font-family-title);
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--color-navy);
    line-height: 1.1;
    margin: var(--space-4) 0 var(--space-6);
}

.hero-title .highlight {
    display: block;
    position: relative;
}

.hero-title .highlight::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    width: 100%;
    height: 8px;
    background: var(--color-gold);
    opacity: 0.4;
    z-index: -1;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    margin-bottom: var(--space-8);
}

.hero-stats {
    display: flex;
    gap: var(--space-8);
    margin-bottom: var(--space-8);
    padding: var(--space-6);
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--color-navy);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

.hero-cta {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
    position: relative;
    z-index: 10;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-wrapper {
    position: relative;
}

.hero-image-bg {
    position: absolute;
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
    border-radius: 50%;
    opacity: 0.1;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

.product-preview {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-10);
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-premium);
}

.product-badge {
    position: absolute;
    top: -12px;
    right: -12px;
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-white);
    background: var(--color-success);
    border-radius: var(--radius-full);
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}

.product-icon {
    margin-bottom: var(--space-4);
    color: var(--color-navy);
}

.product-image-container {
    width: 240px;
    height: 240px;
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.product-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: var(--space-2);
}

.product-value {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    text-decoration: line-through;
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    pointer-events: none;
    z-index: 0;
}

.hero-wave svg {
    display: block;
    width: 100%;
}

/* ============================
   Section Styles
   ============================ */
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-12);
}

.section-title {
    font-family: var(--font-family-title);
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-navy);
    margin: var(--space-4) 0;
    white-space: nowrap;
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
}

.title-underline {
    width: 4rem;
    height: 4px;
    background: var(--color-gold);
    margin: var(--space-4) auto 0;
    border-radius: 2px;
}

/* ============================
   Product Section
   ============================ */
.product-section {
    padding: var(--space-24) 0;
    background: var(--color-gray-50);
}

.product-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.feature-card {
    padding: var(--space-8);
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: rgba(209, 221, 230, 0.3);
    border-radius: 50%;
    margin-bottom: var(--space-6);
    color: var(--color-navy);
    transition: all var(--transition-fast);
}

.feature-icon-navy {
    background: rgba(209, 221, 230, 0.3);
    color: var(--color-navy);
}

.feature-card:hover .feature-icon-navy {
    background: var(--color-navy);
    color: var(--color-white);
}

.feature-title {
    font-family: var(--font-family-title);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: var(--space-3);
}

.feature-description {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
}

/* ============================
   How It Works Section
   ============================ */
.how-section {
    padding: var(--space-24) 0;
    background: var(--color-white);
}

.steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: var(--space-6);
}

.step {
    flex: 1;
    max-width: 280px;
    text-align: center;
    position: relative;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--color-navy);
    color: var(--color-yellow);
    font-size: var(--font-size-xl);
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: var(--space-6);
}

.step-content {
    margin-bottom: var(--space-6);
}

.step-title {
    font-family: var(--font-family-title);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: var(--space-2);
}

.step-description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.step-icon {
    color: var(--color-gray-300);
}

.step-connector {
    flex: 0 0 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-navy), var(--color-gray-200));
    margin-top: 24px;
}

/* ============================
   Register Section
   ============================ */
.register-section {
    padding: var(--space-24) 0;
    background: var(--color-navy);
    color: var(--color-white);
}

.register-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.register-title {
    font-family: var(--font-family-title);
    font-size: var(--font-size-3xl);
    font-weight: 700;
    line-height: 1.2;
    margin: var(--space-4) 0 var(--space-6);
}

.register-title .highlight {
    color: var(--color-gold);
}

.register-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-300);
    margin-bottom: var(--space-8);
}

.register-benefits {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.register-benefits li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--font-size-sm);
    color: var(--color-gray-300);
}

.register-benefits svg {
    flex-shrink: 0;
    color: var(--color-success);
}

.register-form-wrapper {
    background: var(--color-white);
    padding: var(--space-10);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
}

.register-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-700);
}

.required {
    color: var(--color-error);
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: var(--space-4);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-gray-800);
    background: var(--color-gray-50);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-navy);
    background: var(--color-white);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-gray-400);
}

.form-row {
    display: grid;
    grid-template-columns: 65% 35%;
    gap: var(--space-4);
}

.form-checkbox {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--space-3);
}

.form-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    accent-color: var(--color-navy);
    cursor: pointer;
}

.form-checkbox label {
    font-weight: 400;
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
    cursor: pointer;
}

.form-checkbox label a {
    color: var(--color-navy);
    text-decoration: underline;
}

.form-note {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    text-align: center;
    justify-content: center;
    margin-top: var(--space-2);
}

/* ============================
   FAQ Section
   ============================ */
.faq-section {
    padding: var(--space-24) 0;
    background: var(--color-gray-50);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.faq-item {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-6);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-navy);
    text-align: left;
    background: none;
    border: none;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--color-gray-50);
}

.faq-question svg {
    flex-shrink: 0;
    transition: transform var(--transition-base);
    color: var(--color-gray-400);
}

.faq-item.active .faq-question svg {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 var(--space-6) var(--space-6);
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
}

/* ============================
   Footer
   ============================ */
.footer {
    background: var(--color-navy-dark);
    color: var(--color-gray-400);
    padding: var(--space-12) 0;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: var(--space-8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo-text {
    color: var(--color-white);
    font-size: var(--font-size-2xl);
}

.footer-brand p {
    font-size: var(--font-size-sm);
    margin-top: var(--space-2);
}

.footer-links {
    display: flex;
    gap: var(--space-8);
}

.footer-links a {
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--space-8);
    text-align: center;
    font-size: var(--font-size-sm);
}

/* ============================
   Modal
   ============================ */
.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--color-white);
    padding: var(--space-10);
    border-radius: var(--radius-2xl);
    text-align: center;
    max-width: 400px;
    transform: scale(0.9);
    transition: transform var(--transition-base);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: var(--color-success);
    color: var(--color-white);
    border-radius: 50%;
    margin-bottom: var(--space-6);
}

.modal-title {
    font-family: var(--font-family-title);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: var(--space-4);
}

.modal-description {
    color: var(--color-gray-600);
    margin-bottom: var(--space-8);
}

/* ============================
   Responsive Design
   ============================ */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        max-width: 100%;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-image {
        order: -1;
    }

    .product-features {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .steps {
        flex-direction: column;
        align-items: center;
    }

    .step {
        max-width: 100%;
    }

    .step-connector {
        width: 2px;
        height: 40px;
        background: linear-gradient(180deg, var(--color-navy), var(--color-gray-200));
        margin: 0;
    }

    .register-wrapper {
        grid-template-columns: 1fr;
    }

    .register-info {
        text-align: center;
    }

    .register-benefits {
        align-items: center;
    }
}

@media (max-width: 768px) {

    .nav-menu,
    .nav-actions {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu.active {
        display: flex;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--color-white);
        padding: var(--space-6);
        gap: var(--space-4);
        box-shadow: var(--shadow-lg);
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--space-4);
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .register-title {
        font-size: var(--font-size-3xl);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--space-6);
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-4);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn-lg {
        width: 100%;
    }

    .register-form-wrapper {
        padding: var(--space-6);
    }
}

/* ============================
   Animations
   ============================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-text,
.hero-image-wrapper,
.feature-card,
.step,
.faq-item {
    animation: fadeInUp 0.6s ease forwards;
}

.hero-text {
    animation-delay: 0.1s;
}

.hero-image-wrapper {
    animation-delay: 0.3s;
}

.feature-card:nth-child(1) {
    animation-delay: 0.1s;
}

.feature-card:nth-child(2) {
    animation-delay: 0.2s;
}

.feature-card:nth-child(3) {
    animation-delay: 0.3s;
}

/* ============================
   Story Section
   ============================ */
.story-section {
    padding: var(--space-24) 0;
    background: var(--color-white);
    overflow: hidden;
}

.story-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

/* Story Badge - matching sales page light_yellow */
.story-badge {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gold);
    margin-bottom: var(--space-2);
}

/* Story Title - matching sales page text-3xl sm:text-4xl */
.story-title {
    font-family: var(--font-family-title);
    font-size: clamp(1.875rem, 4vw, 2.25rem);
    font-weight: 700;
    color: var(--color-navy);
    line-height: 1.2;
    margin-bottom: var(--space-6);
}

.story-points {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.story-point {
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
}

.story-point-icon {
    flex-shrink: 0;
    margin-top: 4px;
    color: var(--color-navy);
}

.story-point-text {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    line-height: 1.6;
    margin: 0;
}

/* Story Diagram - matching sales page bg-powder_blue/20 rounded-3xl p-8 lg:p-12 */
.story-diagram {
    background: rgba(209, 221, 230, 0.2);
    border-radius: 1.5rem;
    padding: 2rem;
    position: relative;
}

@media (min-width: 1024px) {
    .story-diagram {
        padding: 3rem;
    }
}

.diagram-inner {
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-6);
}

.diagram-box {
    width: 100%;
    background: var(--color-white);
    padding: var(--space-4);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-powder-blue);
    text-align: center;
}

.diagram-title {
    font-weight: 700;
    color: var(--color-navy);
    display: block;
    margin-bottom: var(--space-1);
}

.diagram-subtitle {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

.diagram-connector {
    height: 2rem;
    border-left: 2px dashed rgba(21, 31, 109, 0.3);
}

.diagram-results {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-3);
    width: 100%;
}

.diagram-result {
    background: var(--color-navy);
    padding: var(--space-3);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    color: var(--color-white);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.diagram-result-text {
    font-weight: 700;
    font-size: var(--font-size-xs);
    display: block;
    margin-bottom: var(--space-1);
}

.diagram-result-icon {
    opacity: 0.7;
}

.diagram-caption {
    font-size: var(--font-size-xs);
    color: var(--color-gray-400);
    font-style: italic;
    text-align: center;
    margin-top: var(--space-6);
}

/* ============================
   Safety Section
   ============================ */
.safety-section {
    padding: var(--space-20) 0;
    background: var(--color-gray-50);
    border-top: 1px solid var(--color-gray-100);
}

.safety-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.safety-badge {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gold);
    margin-bottom: var(--space-2);
}

.safety-section-title {
    font-family: var(--font-family-title);
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: var(--space-4);
}

.safety-underline {
    width: 3rem;
    height: 4px;
    background: var(--color-gold);
    margin: 0 auto var(--space-6);
}

.safety-intro {
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    max-width: 48rem;
    margin: 0 auto;
    line-height: 1.6;
}

.safety-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.safety-card {
    background: var(--color-white);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-100);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all var(--transition-base);
}

.safety-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.safety-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(209, 221, 230, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
    color: var(--color-navy);
    transition: all var(--transition-fast);
}

.safety-card:hover .safety-icon {
    background: var(--color-navy);
    color: var(--color-white);
}

.safety-title {
    font-family: var(--font-family-title);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: var(--space-2);
}

.safety-description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* ============================
   Patent Section
   ============================ */
.patent-section {
    padding: var(--space-24) 0;
    background: var(--color-navy);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.patent-bg-pattern {
    position: absolute;
    inset: 0;
    opacity: 0.1;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M54.627 0l.83.828-1.415 1.415-.828-.828-.828.828-1.415-1.415.828-.828-.828-.828 1.415-1.415.828.828.828-.828 1.415 1.415-.828.828zM22.485 0l.83.828-1.415 1.415-.828-.828-.828.828-1.415-1.415.828-.828-.828-.828 1.415-1.415.828.828.828-.828 1.415 1.415-.828.828z' fill='%23FFFFFF' fill-opacity='1' fill-rule='evenodd'/%3E%3C/svg%3E");
}

.patent-container {
    position: relative;
    z-index: 10;
    max-width: 72rem;
}

.patent-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.patent-badge {
    display: inline-block;
    padding: var(--space-1) var(--space-4);
    font-size: var(--font-size-xs);
    font-family: monospace;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--color-white);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
}

.patent-section-title {
    font-family: var(--font-family-title);
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-white);
}

.patent-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
}

.patent-card {
    background: rgba(7, 29, 73, 0.5);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(4px);
}

.patent-card-title {
    font-family: var(--font-family-title);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-gold);
    margin-bottom: var(--space-2);
}

.patent-ref {
    font-size: var(--font-size-xs);
    color: var(--color-gray-400);
    font-family: monospace;
    margin-bottom: var(--space-3);
}

.patent-quote {
    margin-bottom: var(--space-4);
    padding-left: var(--space-3);
    border-left: 2px solid rgba(255, 255, 255, 0.2);
    font-style: italic;
    font-size: var(--font-size-sm);
    color: var(--color-gray-300);
}

.patent-summary {
    font-size: 0.8125rem;
    font-weight: 500;
    margin: 0;
}

.patent-footer {
    margin-top: var(--space-10);
    text-align: center;
}

.patent-disclaimer {
    font-size: 0.65rem;
    font-style: italic;
    color: rgba(209, 221, 230, 0.6);
    max-width: 100%;
    margin: 0 auto;
    white-space: nowrap;
}

/* Responsive: Story, Safety, Patent */
@media (max-width: 1024px) {
    .story-grid {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

    .story-diagram {
        order: -1;
    }

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

    .patent-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .safety-grid {
        grid-template-columns: 1fr;
    }

    .diagram-results {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   CHAT WIDGET - Trợ lý ABA
   ============================================ */

.nav-link-chat {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    background: none;
    border: none;
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-600);
    padding: 0;
    transition: color var(--transition-fast);
    line-height: 1;
    vertical-align: middle;
}

.nav-link-chat:hover {
    color: var(--color-navy);
}

.nav-link-chat svg,
.nav-chat-icon {
    width: 1rem;
    height: 1rem;
    color: var(--color-gold);
    transition: transform var(--transition-fast);
    flex-shrink: 0;
    vertical-align: middle;
}

.nav-link-chat:hover svg,
.nav-link-chat:hover .nav-chat-icon {
    transform: rotate(12deg);
}

/* Lucide Icon Sizing for Chat Widget */
.chat-avatar-icon {
    width: 0.75rem;
    height: 0.75rem;
    color: var(--color-gold);
}

.chat-close-icon {
    width: 1rem;
    height: 1rem;
}

.chat-send-icon {
    width: 1rem;
    height: 1rem;
}

.chat-toggle-icon {
    width: 1.5rem;
    height: 1.5rem;
}

.chat-window {
    position: fixed;
    bottom: 6rem;
    right: 1rem;
    width: calc(100vw - 2rem);
    max-width: 24rem;
    max-height: 70vh;
    background: var(--color-gray-50);
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    border: 1px solid var(--color-gray-200);
    display: flex;
    flex-direction: column;
    z-index: 50;
    transform: scale(0.95);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-base);
    transform-origin: bottom right;
    overflow: hidden;
}

.chat-window.active {
    transform: scale(1);
    opacity: 1;
    pointer-events: auto;
}

.chat-header {
    background: var(--color-navy);
    color: var(--color-white);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.chat-header-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.chat-avatar {
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-avatar svg {
    color: var(--color-gold);
}

.chat-title {
    font-weight: 700;
    font-size: var(--font-size-sm);
    margin: 0;
}

.chat-subtitle {
    font-size: 0.625rem;
    opacity: 0.7;
    margin: 0;
}

.chat-close-btn {
    padding: 0.25rem;
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    color: var(--color-white);
    transition: background var(--transition-fast);
}

.chat-close-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-height: 200px;
    max-height: 50vh;
}

.chat-message {
    display: flex;
    gap: 0.5rem;
    align-items: flex-end;
}

.chat-message-user {
    justify-content: flex-end;
}

.chat-message-avatar {
    width: 1.5rem;
    height: 1.5rem;
    border-radius: var(--radius-full);
    background: var(--color-navy);
    color: var(--color-white);
    font-size: 0.625rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.chat-message-bubble {
    padding: 0.75rem;
    border-radius: var(--radius-lg);
    max-width: 85%;
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

.chat-message-ai .chat-message-bubble {
    background: var(--color-white);
    color: var(--color-gray-700);
    border-bottom-left-radius: 0;
    border: 1px solid var(--color-gray-100);
    box-shadow: var(--shadow-sm);
}

.chat-message-user .chat-message-bubble {
    background: var(--color-navy);
    color: var(--color-gold);
    border-bottom-right-radius: 0;
    box-shadow: var(--shadow-sm);
}

.chat-form {
    padding: 0.75rem;
    border-top: 1px solid var(--color-gray-200);
    background: var(--color-white);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
    display: flex;
    gap: 0.5rem;
}

.chat-input {
    flex: 1;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-gray-200);
    font-size: var(--font-size-sm);
    outline: none;
    transition: border var(--transition-fast);
}

.chat-input:focus {
    border-color: var(--color-navy);
}

.chat-send-btn {
    width: 2.5rem;
    height: 2.5rem;
    background: var(--color-navy);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast);
}

.chat-send-btn:hover {
    background: var(--color-deep-navy);
}

.chat-send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.chat-toggle-btn {
    position: fixed;
    bottom: 1.5rem;
    right: 1rem;
    width: 3.5rem;
    height: 3.5rem;
    background: var(--color-navy);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
    transition: all var(--transition-base);
}

.chat-toggle-btn:hover {
    background: var(--color-deep-navy);
    transform: scale(1.1);
}

.chat-toggle-btn.active {
    transform: rotate(90deg);
    opacity: 0;
}

.chat-toggle-dot {
    position: absolute;
    top: 0;
    right: 0;
    width: 0.75rem;
    height: 0.75rem;
    background: var(--color-gold);
    border-radius: var(--radius-full);
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.5;
        transform: scale(1.1);
    }
}

.chat-loading {
    display: flex;
    gap: 0.25rem;
    align-items: center;
    padding: 1rem;
}

.typing-dot {
    width: 0.5rem;
    height: 0.5rem;
    background: var(--color-gray-400);
    border-radius: var(--radius-full);
    animation: typing 1.4s infinite ease-in-out both;
}

.typing-dot:nth-child(1) {
    animation-delay: -0.32s;
}

.typing-dot:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes typing {

    0%,
    80%,
    100% {
        transform: scale(0.6);
        opacity: 0.4;
    }

    40% {
        transform: scale(1);
        opacity: 1;
    }
}

@media (min-width: 640px) {
    .chat-window {
        right: 1.5rem;
    }

    .chat-toggle-btn {
        right: 1.5rem;
    }
}