:root {
    color-scheme: light only;
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    --bg-primary: #faf9f7;
    --bg-secondary: #ffffff;
    --bg-tertiary: #faf9f7;
    
    --text-primary: #1a1a1a;
    --text-secondary: #5c5c5c;
    --text-muted: #717171;
    
    --accent: #c9a962;
    --accent-dark: #b8944d;
    --accent-light: #e5d4a8;
    --accent-soft: #faf6ed;
    
    --border: #e5e5e5;
    --border-light: #f0f0f0;
    
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.1);
    --shadow-card: 0 8px 30px rgba(201, 169, 98, 0.15);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    cursor: grab;
}

a, button, input, select, textarea {
    cursor: pointer;
}

img {
    -webkit-user-drag: none;
    -khtml-user-drag: none;
    -moz-user-drag: none;
    -o-user-drag: none;
    user-drag: none;
}

/* Header */
header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    padding: 0.875rem 2rem;
    transition: all 0.3s ease;
}

header.scrolled {
    padding: 0.5rem 2rem;
    background: rgba(250, 249, 247, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
}

header.scrolled .logo-icon img {
    height: 50px;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.logo-icon img {
    height: 90px;
    width: auto;
    transition: height 0.3s ease;
}

nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    position: relative;
}

nav a:not(.nav-cta)::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

nav a:not(.nav-cta):hover::after {
    width: calc(100% - 2rem);
}

nav a:hover {
    color: var(--text-primary);
}

nav .nav-cta {
    background: var(--accent);
    color: white;
    padding: 0.5rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 0.5rem;
}

nav .nav-cta:hover {
    background: var(--accent-dark);
    color: white;
}

nav .nav-cta svg {
    width: 16px;
    height: 16px;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--text-primary);
    z-index: 1002;
    position: relative;
}

.menu-toggle svg {
    transition: all 0.3s ease;
}

.menu-toggle.active svg {
    transform: rotate(90deg);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-menu-overlay.active {
    display: block;
    opacity: 1;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 320px;
    height: 100vh;
    height: 100dvh;
    background: linear-gradient(180deg, #ffffff 0%, #faf9f7 100%);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.15);
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-light);
    background: white;
    flex-shrink: 0;
}

.mobile-menu-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mobile-menu-logo img {
    height: 48px;
    width: auto;
}

.mobile-menu-close {
    background: var(--bg-tertiary);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.mobile-menu-close:hover {
    background: var(--accent);
    color: white;
    transform: rotate(90deg);
}

.mobile-menu-content {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem 0;
}

.mobile-menu-footer {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--border-light);
    background: white;
    flex-shrink: 0;
}

.mobile-menu a {
    color: var(--text-primary);
    text-decoration: none;
    padding: 0.875rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.mobile-menu a:hover,
.mobile-menu a:active {
    background: linear-gradient(90deg, rgba(201, 169, 98, 0.1) 0%, transparent 100%);
    color: var(--accent);
    border-left-color: var(--accent);
}

.mobile-menu a svg {
    width: 20px;
    height: 20px;
    opacity: 0.7;
    flex-shrink: 0;
}

.mobile-menu-section {
    margin-top: 0.5rem;
    padding-top: 0.5rem;
}

.mobile-menu-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.75rem 1.5rem 0.5rem;
    margin-top: 0.5rem;
    border-top: 1px solid var(--border-light);
}

.mobile-menu-title svg {
    width: 14px;
    height: 14px;
}

.mobile-menu-section a {
    padding-left: 2.5rem;
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--text-secondary);
}

.mobile-menu-section a:hover {
    color: var(--accent);
}

.mobile-cta {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%) !important;
    color: white !important;
    text-align: center;
    padding: 1rem 1.5rem !important;
    border-radius: var(--radius-md) !important;
    font-weight: 600 !important;
    display: flex !important;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px rgba(201, 169, 98, 0.3);
    border-left: none !important;
    transition: all 0.3s ease !important;
}

.mobile-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(201, 169, 98, 0.4) !important;
    background: linear-gradient(135deg, var(--accent-dark) 0%, var(--accent) 100%) !important;
}

.mobile-cta svg {
    width: 18px;
    height: 18px;
    opacity: 1 !important;
}

/* Mobile Menu Link */
.mobile-menu-link {
    color: var(--text-primary);
    text-decoration: none;
    padding: 0.875rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.mobile-menu-link:hover {
    background: linear-gradient(90deg, rgba(201, 169, 98, 0.1) 0%, transparent 100%);
    color: var(--accent);
    border-left-color: var(--accent);
}

.mobile-menu-link svg {
    width: 20px;
    height: 20px;
    opacity: 0.7;
}

/* Mobile Accordion */
.mobile-accordion {
    border-top: 1px solid var(--border-light);
}

.mobile-accordion:first-of-type {
    margin-top: 0.5rem;
}

.mobile-accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.875rem 1.5rem;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.mobile-accordion-header:hover {
    background: linear-gradient(90deg, rgba(201, 169, 98, 0.1) 0%, transparent 100%);
    color: var(--accent);
    border-left-color: var(--accent);
}

.accordion-header-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.accordion-header-content svg {
    width: 20px;
    height: 20px;
    opacity: 0.7;
}

.accordion-arrow {
    width: 16px;
    height: 16px;
    transition: transform 0.3s ease;
    opacity: 0.5;
}

.mobile-accordion.active .accordion-arrow {
    transform: rotate(180deg);
}

.mobile-accordion.active .mobile-accordion-header {
    color: var(--accent);
    border-left-color: var(--accent);
}

.mobile-accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: var(--bg-tertiary);
}

.mobile-accordion.active .mobile-accordion-content {
    max-height: 300px;
}

.mobile-accordion-content a {
    display: block;
    padding: 0.65rem 1.5rem 0.65rem 3.25rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.mobile-accordion-content a:hover {
    color: var(--accent);
    background: rgba(201, 169, 98, 0.08);
    border-left-color: var(--accent-light);
}

/* Nav Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-trigger,
.nav-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-dropdown-trigger svg,
.nav-dropdown-toggle svg {
    width: 12px;
    height: 12px;
    transition: transform 0.2s ease;
}

.nav-dropdown:hover .nav-dropdown-trigger svg,
.nav-dropdown:hover .nav-dropdown-toggle svg {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem 0;
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    margin-top: 0.5rem;
    z-index: 100;
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
}

.nav-dropdown-menu a {
    display: block;
    padding: 0.65rem 1.25rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    white-space: nowrap;
    border-radius: 0;
}

.nav-dropdown-menu a:hover {
    background: var(--bg-tertiary);
    color: var(--accent);
}

/* Hero Section */
.hero {
    padding: 5rem 2rem 4rem;
    text-align: center;
    background: var(--bg-tertiary);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.hero-badge svg {
    width: 16px;
    height: 16px;
    color: var(--accent);
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 500;
    line-height: 1.25;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.hero h1 span {
    color: var(--accent);
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

/* Expand Button */
.ubuntu-highlight {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    background: rgba(201, 169, 98, 0.12);
    border: 1px solid var(--accent);
    border-radius: var(--radius-lg);
    padding: 1.25rem 2rem;
    max-width: 700px;
    margin: 0 auto 2rem;
}

.ubuntu-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.ubuntu-icon svg {
    width: 100%;
    height: 100%;
    stroke: var(--accent);
}

.ubuntu-highlight p {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin: 0;
    text-align: left;
}

.ubuntu-highlight strong {
    color: var(--accent-dark);
    font-weight: 700;
}

.ubuntu-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
    padding: 0.875rem 1.75rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-primary);
    text-decoration: none;
    outline: none;
}

.ubuntu-btn:hover {
    background: var(--accent);
    color: white;
}

.ubuntu-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.3);
}

.ubuntu-btn:active {
    outline: none;
    transform: scale(0.98);
}

.ubuntu-btn svg {
    width: 20px;
    height: 20px;
}

/* Manifesto Container */
.manifesto-container {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.6s ease, padding 0.3s ease;
    margin-top: 0;
}

.manifesto-container.expanded {
    max-height: 1500px;
    margin-top: 3rem;
}

.manifesto-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: left;
}

.manifesto-text {
    margin-bottom: 3rem;
    padding: 0 1rem;
}

.manifesto-text h3 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    color: var(--accent-dark);
    margin-bottom: 1.5rem;
    text-align: center;
}

.manifesto-text p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    text-align: left;
    max-width: 100%;
}

.manifesto-text p strong {
    color: var(--accent-dark);
}

.manifesto-text p em {
    color: var(--accent-dark);
    font-style: italic;
}

.ubuntu-quote {
    font-size: 1.25rem;
    text-align: center !important;
    color: var(--accent-dark);
    margin-bottom: 2rem;
    padding: 1rem;
    background: var(--accent-soft);
    border-radius: var(--radius-md);
}

.manifesto-section {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--accent-dark);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.manifesto-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.manifesto-list li {
    padding: 0.75rem 0 0.75rem 2rem;
    position: relative;
    font-size: 1.05rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
}

.manifesto-list li:last-child {
    border-bottom: none;
}

.manifesto-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

.manifesto-list li strong {
    color: var(--accent-dark);
}

.manifesto-closing {
    text-align: center;
    font-size: 1.1rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-light);
}

.manifesto-closing strong {
    color: var(--accent-dark);
}

/* Ubuntu Detail Modal */
.ubuntu-detail {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    z-index: 2000;
    overflow-y: auto;
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.ubuntu-detail.active {
    display: block;
    opacity: 1;
    transform: scale(1);
    animation: modalFadeIn 0.35s ease forwards;
}

.ubuntu-detail.closing {
    animation: modalFadeOut 0.25s ease forwards;
}

@keyframes modalFadeIn {
    0% {
        opacity: 0;
        transform: scale(0.95) translateY(20px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes modalFadeOut {
    0% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
    100% {
        opacity: 0;
        transform: scale(0.95) translateY(20px);
    }
}

.ubuntu-detail-header {
    position: sticky;
    top: 0;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(250, 249, 247, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    z-index: 10;
}

.ubuntu-back-button {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.ubuntu-back-button:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.ubuntu-back-button svg {
    width: 18px;
    height: 18px;
}

.ubuntu-detail-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.ubuntu-detail-hero {
    text-align: center;
    margin-bottom: 3rem;
}

.ubuntu-detail-badge {
    display: inline-block;
    background: rgba(201, 169, 98, 0.15);
    color: var(--accent-dark);
    padding: 0.35rem 1rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.ubuntu-detail-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 500;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.ubuntu-detail-quote {
    font-size: 1.2rem;
    font-style: italic;
    color: var(--accent-dark);
    margin-bottom: 1rem;
}

.ubuntu-detail-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    font-style: italic;
    max-width: 700px;
    margin: 0 auto 2rem;
}

.ubuntu-detail-section {
    margin-bottom: 2.5rem;
}

.ubuntu-detail-section h4 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    color: var(--accent-dark);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--accent);
    display: inline-block;
}

.ubuntu-detail-section p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.ubuntu-detail-section p strong {
    color: var(--accent-dark);
}

.ubuntu-detail-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.ubuntu-detail-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: rgba(201, 169, 98, 0.08);
    border-radius: var(--radius);
    margin-bottom: 0.75rem;
    font-size: 1rem;
    color: var(--text-secondary);
}

.ubuntu-detail-list li svg {
    width: 20px;
    height: 20px;
    color: var(--accent);
    flex-shrink: 0;
    margin-top: 2px;
}

.ubuntu-detail-list li strong {
    color: var(--accent-dark);
}

.ubuntu-detail-closing {
    text-align: center;
    font-size: 1.15rem;
    margin-top: 2.5rem;
    padding: 2rem;
    background: rgba(201, 169, 98, 0.1);
    border-radius: var(--radius-lg);
    border: 1px solid var(--accent);
}

.ubuntu-detail-closing strong {
    color: var(--accent-dark);
}

.ubuntu-detail-cta {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.ubuntu-cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent);
    color: white;
    padding: 0.875rem 1.75rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.ubuntu-cta-button:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
}

.ubuntu-cta-button svg {
    width: 20px;
    height: 20px;
}

.ubuntu-cta-close {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    color: var(--text-secondary);
    padding: 0.875rem 1.75rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 500;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: var(--transition);
}

.ubuntu-cta-close:hover {
    background: var(--bg-secondary);
}

.ubuntu-cta-close svg {
    width: 18px;
    height: 18px;
}

/* Model Comparison */
.model-comparison {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    padding: 2rem 0;
    flex-wrap: wrap;
}

.model-card {
    background: rgba(255,255,255,0.6);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    flex: 1;
    min-width: 250px;
    max-width: 320px;
    transition: var(--transition);
}

.model-card.traditional {
    border: 1px solid var(--border);
}

.model-card.ubuntu {
    border: 2px solid var(--accent);
    background: rgba(201, 169, 98, 0.08);
}

.model-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 1.5rem;
}

.model-icon svg {
    width: 100%;
    height: 100%;
}

.model-card h4 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.model-card.traditional h4 {
    color: #7f8c8d;
}

.model-card.ubuntu h4 {
    color: var(--accent-dark);
}

.model-subtitle {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.model-card.traditional .model-subtitle {
    color: #e74c3c;
}

.model-card.ubuntu .model-subtitle {
    color: var(--accent);
}

.model-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.model-arrow {
    width: 50px;
    flex-shrink: 0;
}

.model-arrow svg {
    width: 100%;
    height: auto;
}

/* Pricing Section */
.pricing-section {
    padding: 5rem 2rem;
    background: var(--bg-secondary);
    overflow: hidden;
}

.section-header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 0 0.5rem;
}

.section-title-small {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.section-header p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.pricing-carousel-container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 70px;
}

.pricing-carousel-wrapper {
    overflow: hidden;
    margin: 0 auto;
    position: relative;
    cursor: grab;
}

.pricing-carousel-wrapper::before,
.pricing-carousel-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 60px;
    z-index: 5;
    pointer-events: none;
}

.pricing-carousel-wrapper::before {
    left: 0;
    background: linear-gradient(to right, var(--bg-secondary) 0%, transparent 100%);
}

.pricing-carousel-wrapper::after {
    right: 0;
    background: linear-gradient(to left, var(--bg-secondary) 0%, transparent 100%);
}

.pricing-grid {
    display: flex;
    gap: 1.5rem;
    transition: transform 0.4s ease;
    padding: 1rem 60px;
    cursor: grab;
}

.pricing-grid:active {
    cursor: grabbing;
}

.pricing-grid.dragging {
    cursor: grabbing;
    transition: none;
}

.pricing-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    min-width: 320px;
    width: 320px;
    flex-shrink: 0;
}

.pricing-carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: white;
    border: 1px solid var(--border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.pricing-carousel-btn:hover:not(.disabled) {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.pricing-carousel-btn.disabled {
    opacity: 0.3;
    cursor: not-allowed;
    pointer-events: none;
}

.pricing-carousel-btn svg {
    width: 20px;
    height: 20px;
}

.pricing-prev {
    left: 10px;
}

.pricing-next {
    right: 10px;
}

.pricing-carousel-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.pricing-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.pricing-dot.active {
    background: var(--accent);
    width: 24px;
    border-radius: 5px;
}

.pricing-card:hover {
    border-color: var(--accent-light);
    box-shadow: var(--shadow-card);
    transform: translateY(-8px);
}

.pricing-card.featured {
    border: 2px solid var(--accent);
    position: relative;
}

.pricing-card.featured::before {
    content: 'La elección inteligente';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.4rem 1rem;
    border-radius: 0 0 8px 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.pricing-card.free {
    background: linear-gradient(135deg, #f8f9fa 0%, #fff 100%);
    border-color: var(--border);
}

.pricing-card.infinity {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: white;
    border-color: #333;
}

.pricing-card.infinity .pricing-name,
.pricing-card.infinity .pricing-price,
.pricing-card.infinity .pricing-features li,
.pricing-card.infinity .pricing-extra {
    color: white;
}

.pricing-card.infinity .pricing-billing,
.pricing-card.infinity .pricing-period {
    color: rgba(255,255,255,0.6);
}

.pricing-card.infinity .pricing-features li {
    border-bottom-color: rgba(255,255,255,0.1);
}

.pricing-card.infinity .pricing-features li svg {
    color: var(--accent);
}

.pricing-card.infinity .pricing-cta {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.pricing-card.infinity .pricing-cta:hover {
    background: var(--accent-light);
    border-color: var(--accent-light);
}

.pricing-card.infinity .pricing-footer {
    border-top-color: rgba(255,255,255,0.1);
}

.pricing-card.infinity .pricing-discount {
    background: rgba(201, 169, 98, 0.2);
}

.pricing-header {
    padding: 2rem 1.25rem 1.25rem;
    text-align: center;
    border-bottom: 1px solid var(--border-light);
    white-space: nowrap;
    min-height: 140px;
    box-sizing: border-box;
}

.pricing-name {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.pricing-billing {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.pricing-price {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--accent-dark);
    line-height: 1;
}

.pricing-price span {
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--text-muted);
}

.pricing-price.consultar {
    font-size: 2.5rem;
    color: var(--accent);
}

.pricing-period {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.35rem;
}

.pricing-features {
    padding: 1.25rem;
    flex: 1;
}

.pricing-features ul {
    list-style: none;
}

.pricing-features li {
    padding: 0.5rem 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    white-space: nowrap;
    height: 36px;
    box-sizing: border-box;
}

.pricing-features li.two-lines {
    height: 48px;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li svg {
    width: 16px;
    height: 16px;
    color: var(--accent);
    flex-shrink: 0;
}

.pricing-features li strong {
    color: var(--accent-dark);
    font-weight: 600;
}

.pricing-features li.disabled {
    color: var(--text-muted);
    opacity: 0.4;
}

.pricing-features li.disabled svg {
    color: var(--text-muted);
}

.feature-quantity {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
    font-size: 0.7rem;
    font-weight: 700;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    margin-right: 0.25rem;
    flex-shrink: 0;
}

.text-accent {
    color: var(--accent);
    font-weight: 600;
}

.pricing-footer {
    padding: 1.25rem;
    border-top: 1px solid var(--border-light);
    margin-top: auto;
}

.pricing-cta {
    display: block;
    width: 100%;
    padding: 0.85rem 1rem;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    text-decoration: none;
    text-align: center;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
    border: 1px solid var(--border);
    white-space: nowrap;
}

.pricing-cta:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.pricing-card.featured .pricing-cta {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.pricing-card.featured .pricing-cta:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
}

.pricing-extras {
    margin-top: 0.75rem;
    text-align: center;
}

.pricing-footer-info {
    min-height: 60px;
}

.pricing-extra {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin: 0.2rem 0;
    white-space: nowrap;
}

.pricing-discount {
    margin-top: 0.5rem;
    padding: 0.4rem;
    background: var(--accent-soft);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    text-align: center;
    color: var(--accent-dark);
    font-weight: 500;
    white-space: nowrap;
}

/* Note Section */
.note-section {
    padding: 3rem 2rem;
    background: var(--bg-tertiary);
    text-align: center;
}

.note-section p {
    max-width: 800px;
    margin: 0 auto;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Footer */
footer {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 3rem 2rem 2rem;
    border-top: 1px solid var(--border);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
}

.footer-brand {
    display: flex;
    align-items: center;
}

.footer-brand img {
    height: 48px;
    width: auto;
}

.footer-links {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}

.footer-links a {
    color: var(--accent);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    transition: var(--transition);
}

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

.footer-copyright {
    font-size: 0.85rem;
    color: var(--text-muted);
    white-space: nowrap;
}

/* Responsive */
@media (max-width: 1200px) {
    .pricing-card {
        min-width: 280px;
        width: 280px;
    }
    
    .pricing-carousel-container {
        padding: 0 60px;
    }
}

@media (max-width: 1000px) {
    .pricing-card {
        min-width: 260px;
        width: 260px;
    }
    
    .pricing-carousel-container {
        padding: 0 50px;
    }
}

@media (max-width: 768px) {
    header {
        padding: 1rem 1rem;
    }
    
    header.scrolled {
        padding: 0.5rem 1rem;
    }
    
    header .logo-icon img {
        height: 54px;
        transition: height 0.3s ease;
    }
    
    header.scrolled .logo-icon img {
        height: 40px;
    }
    
    nav {
        display: none;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero {
        padding: 4rem 1.5rem 3rem;
    }
    
    .pricing-section {
        padding: 3rem 1rem;
    }
    
    /* Pricing carousel mobile: hide buttons, center cards, auto-advance */
    .pricing-carousel-btn {
        display: none !important;
    }
    
    .pricing-carousel-container {
        padding: 0;
    }
    
    .pricing-carousel-wrapper {
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    
    .pricing-carousel-wrapper::-webkit-scrollbar {
        display: none;
    }
    
    .pricing-grid {
        padding-left: 1rem;
        padding-right: 1rem;
        scroll-snap-type: x mandatory;
    }
    
    .pricing-card {
        scroll-snap-align: center;
        min-width: 280px;
        width: 280px;
        flex: 0 0 280px;
    }
    
    .pricing-carousel-wrapper::before,
    .pricing-carousel-wrapper::after {
        display: none;
    }
    
    .pricing-features li {
        white-space: normal;
    }
    
    .pricing-header {
        white-space: normal;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .footer-links {
        gap: 1rem;
    }
    
    .ubuntu-detail-content {
        padding: 2rem 1.5rem;
    }
    
    .ubuntu-detail-title {
        font-size: 1.75rem;
    }
    
    .ubuntu-detail-cta {
        flex-direction: column;
    }
    
    .model-comparison {
        flex-direction: column;
    }
    
    .model-arrow {
        transform: rotate(90deg);
        width: 40px;
    }
    
    .model-card {
        max-width: 100%;
    }
    
    .manifesto-text {
        padding: 0;
    }
    
    .ubuntu-highlight {
        flex-direction: column;
        text-align: center;
        padding: 1.25rem 1.5rem;
    }
    
    .ubuntu-highlight p {
        text-align: center;
    }
    
    /* Ubuntu detail header mobile */
    .ubuntu-detail-header {
        padding: 0.75rem 1rem;
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .ubuntu-detail-header .logo {
        order: -1;
        display: flex;
        justify-content: center;
        width: 100%;
    }
    
    .ubuntu-detail-header .logo-icon {
        display: flex;
        justify-content: center;
    }
    
    .ubuntu-detail-header .logo-icon img {
        height: 36px !important;
        width: auto !important;
    }
    
    .ubuntu-back-button {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
        align-self: flex-start;
    }
    
    .ubuntu-back-button svg {
        width: 16px;
        height: 16px;
    }
}

/* Floating Buttons */
.floating-buttons {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    z-index: 1000;
}

.float-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(201, 169, 98, 0.3);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    background: white;
    color: var(--accent-light);
}

.float-btn svg {
    width: 26px;
    height: 26px;
}

.whatsapp-btn {
    background: white;
    color: var(--accent-light);
}

.whatsapp-btn:hover {
    background: var(--accent-soft);
    border-color: var(--accent);
    color: var(--accent);
    transform: scale(1.1);
}

.scroll-top-btn {
    background: white;
    color: var(--accent-light);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

.scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top-btn:hover {
    background: var(--accent-soft);
    border-color: var(--accent);
    color: var(--accent);
}

.scroll-top-btn.visible:hover {
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .floating-buttons {
        bottom: 1.5rem;
        right: 1.5rem;
    }
    
    .float-btn {
        width: 50px;
        height: 50px;
    }
    
    .float-btn svg {
        width: 22px;
        height: 22px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.6s ease-out forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.15s; }
.delay-3 { animation-delay: 0.2s; }
.delay-4 { animation-delay: 0.25s; }
.delay-5 { animation-delay: 0.3s; }
.delay-6 { animation-delay: 0.35s; }
.delay-7 { animation-delay: 0.4s; }

/* ============================================
   VIEW TRANSITIONS API
   ============================================ */

/* Assign transition names to shared elements */
header {
    view-transition-name: header;
}

.logo {
    view-transition-name: logo;
}

main {
    view-transition-name: main-content;
}

footer {
    view-transition-name: footer;
}

/* Default transition animations */
@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fade-out {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes slide-from-right {
    from { transform: translateX(50px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slide-to-left {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(-50px); opacity: 0; }
}

@keyframes slide-from-left {
    from { transform: translateX(-50px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slide-to-right {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(50px); opacity: 0; }
}

/* View Transition pseudo-elements */
::view-transition-old(root) {
    animation: 300ms cubic-bezier(0.4, 0, 0.2, 1) both fade-out;
}

::view-transition-new(root) {
    animation: 300ms cubic-bezier(0.4, 0, 0.2, 1) both fade-in;
}

/* Header stays in place */
::view-transition-old(header),
::view-transition-new(header) {
    animation: none;
    mix-blend-mode: normal;
}

/* Logo morphs smoothly */
::view-transition-old(logo),
::view-transition-new(logo) {
    animation-duration: 400ms;
    animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Main content slides */
::view-transition-old(main-content) {
    animation: 300ms cubic-bezier(0.4, 0, 0.2, 1) both slide-to-left;
}

::view-transition-new(main-content) {
    animation: 300ms cubic-bezier(0.4, 0, 0.2, 1) both slide-from-right;
}

/* Footer fades */
::view-transition-old(footer),
::view-transition-new(footer) {
    animation-duration: 200ms;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    ::view-transition-old(root),
    ::view-transition-new(root),
    ::view-transition-old(main-content),
    ::view-transition-new(main-content) {
        animation: none;
    }
}

/* Swiper Pricing Carousel Overrides */
#pricing-swiper {
    overflow: hidden;
    padding: 0 60px;
}

#pricing-swiper .swiper-wrapper {
    transition-timing-function: linear !important;
}

#pricing-swiper .swiper-slide {
    width: auto;
    height: auto;
}

.swiper-slide.pricing-card {
    width: 280px;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    #pricing-swiper {
        padding: 0 20px;
    }
    
    .swiper-slide.pricing-card {
        width: 260px;
    }
}