:root {
    --color-primary: #2563EB; /* A strong, modern blue */
    --color-primary-dark: #1D4ED8;
    --color-secondary: #0F172A; /* Rich slate for text and dark elements */
    --color-background: #ffffff;
    --color-background-alt: #f8fafc; /* Softer light grey for backgrounds like hero */
    --color-border: #e2e8f0;
    --color-text: #334155;
    --color-text-light: #64748b;
    --font-primary: 'Inter', sans-serif;
    --font-display: 'Playfair Display', serif;
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.07), 0 4px 6px -4px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.1);
    --border-radius: 12px;
}

/* --- BASE & TYPOGRAPHY --- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-primary);
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}
.container { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* Global Typography & Section Styles */
.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 2.75rem);
    line-height: 1.2;
    color: var(--color-secondary);
    margin-bottom: 1rem;
}
.section-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    color: var(--color-text-light);
    max-width: 600px;
    line-height: 1.7;
}
.section-header { text-align: center; margin: 0 auto 60px; }
.section-header .section-subtitle { margin: 1rem auto 0; }
.cta-microcopy { font-size: 0.85rem; color: var(--color-text-light); margin-top: 12px; opacity: 0.8; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease-in-out;
    border: 2px solid transparent;
    cursor: pointer;
}
.btn-primary {
    background-color: var(--color-primary);
    color: white;
    box-shadow: 0 4px 14px -4px var(--color-primary);
}
.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px -4px var(--color-primary);
}
.btn-secondary {
    background-color: transparent;
    color: var(--color-secondary);
    border-color: var(--color-border);
}
.btn-secondary:hover {
    background-color: var(--color-background-alt);
    border-color: var(--color-secondary);
    transform: translateY(-2px);
}
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }

/* Scroll Reveal Animation */
[data-reveal] { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
[data-reveal].is-revealed { opacity: 1; transform: translateY(0); }

/* --- HEADER --- */
.main-header {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    z-index: 1000;
    padding: 16px 0;
    background-color: transparent;
    transition: all 0.3s ease;
}
.main-header.scrolled {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}
.header-container { display: flex; justify-content: space-between; align-items: center; }
.logo img { height: 32px; display: block; }
.main-nav { display: none; gap: 32px; }
.main-nav a { color: var(--color-secondary); text-decoration: none; font-weight: 500; transition: color 0.2s; }
.main-nav a:hover { color: var(--color-primary); }
.header-cta { display: none; }

/* --- HERO SECTION --- */
.hero-marquee {
    padding-top: 140px; /* Space for header */
    padding-bottom: 80px;
    position: relative;
    background-color: var(--color-background-alt);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    overflow: hidden;
}
.hero-content { position: relative; z-index: 3; width: 100%; max-width: 700px; padding: 40px 0; }
.hero-headline { font-family: var(--font-display); font-size: clamp(2.5rem, 7vw, 4rem); color: var(--color-secondary); margin-bottom: 1rem; }
.hero-subhead { color: var(--color-text); max-width: 600px; margin: 0 auto; }
.hero-cta-group { margin-top: 32px; }
.marquee-row { display: flex; width: 100%; overflow: hidden; z-index: 1; mask-image: linear-gradient(to right, transparent, #000 10%, #000 90%, transparent); }
.marquee-top { margin-bottom: 40px; }
.marquee-bottom { margin-top: 40px; }
.marquee-inner { display: flex; width: fit-content; flex-shrink: 0; }
.marquee-inner.to-left { animation: marquee-left 40s linear infinite; }
.marquee-inner.to-right { animation: marquee-right 40s linear infinite; }
@keyframes marquee-left { from { transform: translateX(0%); } to { transform: translateX(-50%); } }
@keyframes marquee-right { from { transform: translateX(-50%); } to { transform: translateX(0%); } }
.benefit-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    margin: 0 10px;
    flex-shrink: 0;
}
.card-icon {
    flex-shrink: 0;
    width: 40px; height: 40px;
    background: #EFF6FF; /* Light blue */
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
}
.card-icon i { color: var(--color-primary); }
.card-text { text-align: left; }
.card-text strong { display: block; font-size: 1rem; font-weight: 600; color: var(--color-secondary); white-space: nowrap; }
.card-text span { font-size: 0.85rem; color: var(--color-text-light); white-space: nowrap; }

/* --- PAGE CONTENT --- */
.page-content { position: relative; z-index: 5; background: var(--color-background); }
.social-proof-section { padding: clamp(60px, 8vw, 80px) 0; background: var(--color-background-alt); border-bottom: 1px solid var(--color-border); }
.social-proof-section p { text-align: center; color: var(--color-text-light); font-weight: 500; font-size: 0.8rem; letter-spacing: 0.8px; text-transform: uppercase; }
.feature-deep-dive { padding: clamp(80px, 12vw, 120px) 0; overflow: hidden; }
.feature-deep-dive.alt-bg { background-color: var(--color-background-alt); }
.feature-deep-dive .container { display: grid; grid-template-columns: 1fr; gap: 60px; }
.deep-dive-content { order: 1; }
.deep-dive-visual { order: 2; min-width: 0; }
.deep-dive-cta { margin-top: 30px; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 10px; }
.feature-benefits-list { list-style: none; margin: 30px 0 0; display: flex; flex-direction: column; gap: 16px; }
.feature-benefits-list li { display: flex; gap: 20px; align-items: flex-start; padding: 20px; border-radius: var(--border-radius); transition: all 0.2s ease-out; border: 1px solid var(--color-border); }
.feature-deep-dive:not(.alt-bg) .feature-benefits-list li { background: var(--color-background-alt); border-color: var(--color-background-alt); }
.feature-benefits-list li:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.benefit-icon { flex-shrink: 0; width: 44px; height: 44px; background: #DBEAFE; color: var(--color-primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.benefit-text { line-height: 1.6; }
.benefit-text strong { color: var(--color-secondary); }

/* Upsell Builder Mockup */
.builder-controls { background-color: var(--color-background-alt); padding: 25px; border-radius: var(--border-radius); border: 1px solid var(--color-border); }
.builder-controls h4 { margin-bottom: 15px; font-size: 1rem; color: var(--color-secondary); text-align: center; }
.builder-item { display: flex; align-items: center; gap: 12px; padding: 12px; border-radius: 8px; margin-bottom: 10px; cursor: pointer; transition: all 0.2s ease; border: 1px solid var(--color-border); background: var(--color-background); }
.builder-item:hover { background: #eff6ff; transform: scale(1.02); }
.builder-item.is-added { background-color: #f0fdf4; color: #15803d; border-color: #bbf7d0; cursor: not-allowed; opacity: 0.7; }
.upsell-phone-mockup { background: var(--color-background-alt); border-radius: 40px; box-shadow: var(--shadow-lg); height: 640px; max-width: 320px; margin: 0 auto; padding: 12px; display: flex; flex-direction: column; overflow: hidden; border: 1px solid var(--color-border); }
.mockup-header { height: 120px; flex-shrink: 0; border-radius: 30px 30px 0 0; background-image: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)), url('https://images.unsplash.com/photo-1571003123894-1f0594d2b5d9?auto=format&fit=crop&q=80&w=800'); background-size: cover; background-position: center; display: flex; align-items: center; justify-content: center; }
.mockup-header h3 { font-family: var(--font-display); color: white; font-size: 1.75rem; text-shadow: 1px 1px 3px rgba(0,0,0,0.5); }
.mockup-tabs { display: flex; background: white; padding: 0 20px; flex-shrink: 0; }
.mockup-tab-item { flex: 1; padding: 15px 10px; border: none; background: none; font-size: 1rem; font-weight: 500; color: var(--color-text-light); cursor: pointer; border-bottom: 3px solid transparent; transition: all 0.2s; }
.mockup-tab-item.is-active { color: var(--color-primary); border-bottom-color: var(--color-primary); }
.mockup-body { flex-grow: 1; background: white; padding: 20px; overflow-y: auto; overflow-x: hidden; display: flex; flex-direction: column; gap: 20px; }
.mockup-body .empty-state { color: var(--color-text-light); text-align: center; margin-top: 30px; font-size: 0.9rem; }
.upsell-item-card { display: flex; gap: 15px; opacity: 0; transform: scale(0.95); animation: item-in 0.4s cubic-bezier(0.25, 1, 0.5, 1) forwards; }
@keyframes item-in { to { opacity: 1; transform: scale(1); } }
.upsell-item-card .item-image { width: 80px; height: 80px; object-fit: cover; border-radius: 10px; flex-shrink: 0; }
.upsell-item-card .item-details { flex-grow: 1; }
.item-tags { display: flex; gap: 5px; margin-bottom: 5px; }
.item-tag { font-size: 0.7rem; font-weight: 600; padding: 3px 8px; border-radius: 12px; }
.item-tag.tag-romantic { background-color: #fdf2f8; color: #be185d; }
.item-tag.tag-wellness { background-color: #fefce8; color: #a16207; }
.item-tag.tag-adventure { background-color: #eff6ff; color: #1d4ed8; }
.item-tag.tag-transport { background-color: #eef2ff; color: #4f46e5; }
.item-details h4 { font-size: 1rem; color: var(--color-secondary); margin: 0 0 4px; line-height: 1.3; }
.item-details p { font-size: 0.85rem; color: var(--color-text-light); line-height: 1.5; margin-bottom: 8px; }
.item-price { font-weight: 600; color: var(--color-secondary); }
.item-add-btn { width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--color-border); background: white; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.2s ease; flex-shrink: 0; }
.item-add-btn:hover { transform: scale(1.1); background-color: var(--color-primary); color: white; border-color: var(--color-primary); }
.mockup-footer { display: flex; justify-content: space-around; background: #fff; border-top: 1px solid var(--color-border); padding: 5px 0; border-radius: 0 0 30px 30px; flex-shrink: 0; }
.footer-nav-item { display: flex; flex-direction: column; align-items: center; gap: 2px; color: var(--color-text-light); font-size: 0.7rem; padding: 5px; transition: color 0.2s; }
.footer-nav-item.is-active { color: var(--color-primary); }
.footer-nav-item svg { width: 20px; height: 20px; }

/* Booklet Mockup */
.booklet-phone-mockup { position: relative; background: var(--color-background); border-radius: 40px; box-shadow: var(--shadow-lg); height: 640px; max-width: 320px; margin: 0 auto; padding: 12px; display: flex; flex-direction: column; overflow: hidden; border: 1px solid #ddd; }
.booklet-header { height: 140px; flex-shrink: 0; border-radius: 30px 30px 0 0; background-image: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)), url('https://images.unsplash.com/photo-1571003123894-1f0594d2b5d9?auto=format&fit=crop&q=80&w=800'); background-size: cover; background-position: center; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 10px; }
.booklet-header h1 { font-family: var(--font-display); color: white; font-size: 2.25rem; text-shadow: 1px 1px 3px rgba(0,0,0,0.5); line-height: 1.2; }
.booklet-header p { color: white; opacity: 0.9; font-size: 0.9rem; margin-top: 5px; text-shadow: 1px 1px 2px rgba(0,0,0,0.4); }
.booklet-body { flex-grow: 1; background: var(--color-background-alt); padding: 25px 20px; overflow-y: auto; }
.booklet-section-title { font-family: var(--font-display); color: var(--color-secondary); font-size: 1.5rem; margin-bottom: 15px; }
.booklet-card { display: flex; align-items: center; gap: 15px; background: white; padding: 15px; border-radius: var(--border-radius); margin-bottom: 15px; box-shadow: var(--shadow-sm); }
.booklet-card-text { flex-grow: 1; }
.booklet-card-text strong { display: block; font-size: 1rem; color: var(--color-secondary); }
.booklet-card-text span { font-size: 0.9rem; color: var(--color-text-light); }
.booklet-icon { color: var(--color-primary); }
.discover-card .booklet-icon.large { width: 40px; height: 40px; background-color: #eff6ff; border-radius: 10px; display: flex; align-items: center; justify-content: center; }
.booklet-chevron { color: var(--color-text-light); }

/* AI Chat Mockup */
.ai-chat-mockup { height: 550px; background: var(--color-background); border: 1px solid var(--color-border); border-radius: var(--border-radius); box-shadow: var(--shadow-lg); display: flex; flex-direction: column; overflow: hidden; max-width: 450px; margin: 0 auto; }
.chat-header { display: flex; align-items: center; padding: 15px 20px; border-bottom: 1px solid var(--color-border); background: var(--color-background-alt); flex-shrink: 0; }
.chat-header-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--color-primary); color: white; font-weight: 600; display: flex; align-items: center; justify-content: center; margin-right: 15px; }
.chat-header-info strong { display: block; color: var(--color-secondary); }
.chat-header-info span { color: #22c55e; font-size: 0.85rem; font-weight: 500; }
.chat-messages { flex-grow: 1; padding: 20px; overflow-y: auto; display: flex; flex-direction: column; gap: 15px; }
.chat-message { padding: 12px 18px; border-radius: 18px; max-width: 85%; line-height: 1.5; opacity: 0; transform: translateY(10px); animation: message-in 0.4s cubic-bezier(0.25, 1, 0.5, 1) forwards; }
@keyframes message-in { to { opacity: 1; transform: translateY(0); } }
.chat-message.bot { background-color: var(--color-background-alt); color: var(--color-text); border-bottom-left-radius: 4px; align-self: flex-start; }
.chat-message.user { background-color: var(--color-primary); color: white; border-bottom-right-radius: 4px; align-self: flex-end; }
.chat-suggestions { display: flex; flex-wrap: wrap; gap: 10px; padding: 15px 20px 10px; border-top: 1px solid var(--color-border); flex-shrink: 0; }
.chat-suggestion-chip { padding: 8px 15px; border: 1px solid var(--color-border); border-radius: 20px; font-size: 0.85rem; cursor: pointer; transition: all 0.2s ease; }
.chat-suggestion-chip:hover { background: var(--color-primary); color: white; border-color: var(--color-primary); }
.chat-input-form { display: flex; padding: 15px; background: var(--color-background-alt); flex-shrink: 0; }
.chat-input-form input { flex-grow: 1; border: 1px solid var(--color-border); background: var(--color-background); padding: 12px 15px; border-radius: 8px; font-size: 1rem; outline: none; transition: border-color 0.2s; }
.chat-input-form input:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2); }
.chat-input-form button { border: none; background: var(--color-primary); color: white; padding: 0 15px; margin-left: 10px; border-radius: 8px; cursor: pointer; transition: background-color 0.2s; }
.chat-input-form button:hover { background-color: var(--color-primary-dark); }

/* Pricing Section */
.pricing-section { padding: clamp(80px, 12vw, 120px) 0; background-color: var(--color-background-alt); }
.pricing-plans { display: grid; grid-template-columns: 1fr; gap: 30px; align-items: stretch; margin-bottom: 40px; max-width: 400px; margin-left: auto; margin-right: auto; }
.pricing-card { background: var(--color-background); border: 1px solid var(--color-border); padding: 30px; border-radius: var(--border-radius); text-align: center; display: flex; flex-direction: column; transition: all 0.3s ease; }
.pricing-card > *:last-child { margin-top: auto; }
.pricing-card.popular { border-color: var(--color-primary); box-shadow: var(--shadow-md); transform: scale(1.02); }
.pricing-card h3 { font-size: 1.25rem; margin-bottom: 10px; font-weight: 600; }
.pricing-card .price { display: flex; justify-content: center; align-items: baseline; gap: 4px; margin-bottom: 10px; color: var(--color-secondary); }
.pricing-card .price .currency { font-size: 1.5rem; font-weight: 600; align-self: flex-start; margin-top: 8px; }
.pricing-card .price .amount { font-family: var(--font-primary); font-size: 3.5rem; font-weight: 700; line-height: 1; }
.pricing-card .price .period { font-size: 1.1rem; font-weight: 500; color: var(--color-text-light); }
.pricing-card .price.contact-us { font-size: 1.5rem; font-weight: 700; align-items: center; height: 56px; }
.pricing-card .plan-desc { color: var(--color-text-light); min-height: 40px; margin-bottom: 20px; font-size: 0.9rem; }
.pricing-card ul { list-style: none; text-align: left; margin: 30px 0; padding-left: 0; }
.pricing-card ul li { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.pricing-card ul i { color: var(--color-primary); }
.popular-badge { background: var(--color-primary); color: white; font-size: 0.8rem; font-weight: 600; padding: 5px 15px; border-radius: 20px; display: inline-block; margin-bottom: 20px; }
.pricing-guarantee { text-align: center; color: var(--color-text-light); display: flex; align-items: center; justify-content: center; gap: 10px; }

/* Final CTA Section */
.cta-section { padding: clamp(80px, 12vw, 120px) 0; background-color: var(--color-secondary); color: white; }
.cta-container { text-align: center; }
.cta-container h2 { font-family: var(--font-display); font-size: clamp(2rem, 6vw, 2.75rem); line-height: 1.2; margin-bottom: 15px; color: white; }
.cta-container p { font-size: 1.125rem; opacity: 0.8; max-width: 550px; margin: 0 auto 30px; }
.cta-form { display: flex; flex-direction: column; justify-content: center; gap: 10px; max-width: 500px; margin: 0 auto; }
.cta-form input { flex-grow: 1; padding: 14px; border: 1px solid #475569; background: #1E293B; color: white; border-radius: 8px; font-size: 1rem; text-align: center; transition: all 0.2s ease; }
.cta-form input:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.3); outline: none; }
.cta-form button { display: flex; align-items: center; justify-content: center; gap: 8px; }

/* --- FOOTER --- */
.main-footer { padding: 60px 0; background-color: var(--color-background-alt); }
.footer-top { display: flex; flex-direction: column; align-items: center; gap: 20px; padding-bottom: 30px; margin-bottom: 30px; border-bottom: 1px solid var(--color-border); }
.logo-footer img { height: 32px; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 24px; }
.footer-links a { color: var(--color-text-light); text-decoration: none; font-weight: 500; transition: color 0.2s; }
.footer-links a:hover { color: var(--color-primary); }
.footer-bottom { display: flex; flex-direction: column; align-items: center; gap: 10px; color: var(--color-text-light); font-size: 0.9rem; text-align: center; }

/* --- DESKTOP & TABLET STYLES --- */
@media (min-width: 768px) {
    .main-nav, .header-cta { display: flex; }
    .pricing-plans { grid-template-columns: repeat(3, 1fr); max-width: none; }
    .cta-form { flex-direction: row; }
    .cta-form input { text-align: left; }
    .footer-top, .footer-bottom { flex-direction: row; justify-content: space-between; }
    .deep-dive-cta { align-items: flex-start; text-align: left; }
    .deep-dive-cta .cta-microcopy { margin-left: 0; }
}

@media (min-width: 992px) {
    .hero-marquee { padding-top: 180px; padding-bottom: 120px; }
    .section-title, .section-subtitle { text-align: left; margin-left: 0; }
    .feature-deep-dive .container { grid-template-columns: 1fr 1fr; align-items: center; gap: 80px; }
    .feature-deep-dive#guest-booklet .deep-dive-content { order: 2; }
    .feature-deep-dive#guest-booklet .deep-dive-visual { order: 1; }
}