/* Daybook Cloud Website - Comprehensive CSS */

:root {
    --brand: #104a7a;
    --brand-dark: #07375d;
    --bg: #f6edbd;
    --surface: #f8efc4;
    --surface-soft: #f4e79f;
    --surface-muted: #e7d989;
    --text: #111827;
    --text-secondary: #26415c;
    --muted: #5f6b54;
    --inverse: #fff7cf;
    --border: #9b8e43;
    --border-subtle: #c9ba62;
    --border-strong: #174a78;
    --success: #0f7b35;
    --warning: #b86800;
    --danger: #b42318;
    --focus-ring: #174a78;

    --transition: all 0.3s ease;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
}

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

html {
    scroll-behavior: smooth;
}

html,
body {
    font-family: "Roboto", system-ui, -apple-system, "Segoe UI", sans-serif;
}

body {
    color: var(--text);
    background-color: var(--bg);
    line-height: 1.6;
    font-size: 16px;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.25rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text);
}

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

a:hover {
    color: var(--brand-dark);
}

/* Header & Navigation */
.header {
    background-color: var(--bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.65rem 0;
}

.logo {
    display: flex;
    align-items: center;
    color: var(--text);
    text-decoration: none;
}

.logo-wordmark {
    display: block;
    width: 260px;
    max-width: 42vw;
    max-height: 64px;
    height: auto;
}

.logo-img {
    width: 40px;
    aspect-ratio: 828 / 811;
}

.nav {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: var(--text);
    font-weight: 500;
    transition: var(--transition);
    display: block;
    padding: 0.5rem 0;
}

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

/* Hamburger Menu */
.nav-toggle {
    display: none;
}

.nav-toggle-label {
    display: none;
    cursor: pointer;
    padding: 0.5rem;
    margin-left: auto;
}

.hamburger {
    display: block;
    width: 24px;
    height: 18px;
    position: relative;
}

.hamburger::before,
.hamburger::after,
.hamburger {
    background-color: var(--text);
    height: 2px;
    content: '';
    display: block;
    transition: var(--transition);
}

.hamburger::before {
    transform: translateY(-6px);
}

.hamburger::after {
    transform: translateY(4px);
}

/* Mobile Menu Styles */
.nav-toggle:checked ~ .nav {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: var(--spacing-md);
    z-index: 99;
    gap: 0;
    width: 100vw;
    margin-left: -1rem;
}

.nav-toggle:checked ~ .nav .nav-link {
    padding: 0.75rem var(--spacing-md);
    border-bottom: 1px solid var(--border);
    color: var(--text);
}

.nav-toggle:checked ~ .nav .nav-link:last-child {
    border-bottom: none;
}

.nav-toggle:checked ~ .nav .nav-link:hover {
    background-color: var(--surface);
    color: var(--brand);
}

.nav-toggle:checked ~ .nav-toggle-label .hamburger::before {
    transform: rotate(45deg) translateY(0);
}

.nav-toggle:checked ~ .nav-toggle-label .hamburger::after {
    transform: rotate(-45deg) translateY(0);
}

.nav-toggle:checked ~ .nav-toggle-label .hamburger {
    background-color: transparent;
}

/* Buttons */
.button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

.button-primary {
    background-color: var(--brand);
    color: var(--inverse);
}

.button-primary:hover {
    background-color: var(--brand-dark);
}

.button-secondary {
    background-color: transparent;
    color: var(--brand);
    border-color: var(--brand);
}

.button-secondary:hover {
    background-color: var(--surface-soft);
}

/* Hero Section */
.hero {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.eyebrow {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--brand);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

.hero-headline {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-subheadline {
    font-size: 1.25rem;
    color: var(--text);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.hero-supporting {
    font-size: 1.05rem;
    color: var(--muted);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.hero-trust {
    font-size: 0.95rem;
    color: var(--muted);
    font-style: italic;
}

.hero-visual {
    width: 100%;
}

.hero-visual svg {
    width: 100%;
    height: auto;
    max-width: 600px;
}

/* Homepage Storyboard */
.story-hero {
    position: relative;
    overflow: hidden;
    padding: 5rem 0 2.5rem;
    background: var(--bg);
}

.story-hero-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: var(--spacing-2xl);
    align-items: center;
}

.story-hero-content {
    max-width: 640px;
}

.story-hero h1 {
    font-size: 3.65rem;
    line-height: 1.05;
    font-weight: 750;
    margin-bottom: var(--spacing-lg);
    color: var(--text);
}

.story-hero p:not(.eyebrow) {
    font-size: 1.25rem;
    color: var(--muted);
    margin-bottom: var(--spacing-xl);
}

.story-hero-media {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 360px;
    padding: var(--spacing-md);
    border: 1px solid rgba(23, 74, 120, 0.24);
    border-radius: 1rem;
    background: var(--surface);
    box-shadow: 0 30px 80px rgba(17, 24, 39, 0.12);
}

.story-hero-media img {
    display: block;
    width: 100%;
    max-height: 460px;
    object-fit: contain;
    border-radius: 0.75rem;
}

.story-hero .hero-buttons {
    align-items: flex-start;
}

.story-hero .button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: auto;
    max-width: 100%;
    min-height: 44px;
    text-align: center;
}

.storyboard-section {
    padding: var(--spacing-lg) 0 var(--spacing-2xl);
    background:
        linear-gradient(180deg, var(--surface) 0%, var(--bg) 42%, var(--surface-soft) 100%);
}

.story-panel {
    display: grid;
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    gap: var(--spacing-2xl);
    align-items: center;
    min-height: 460px;
    padding: var(--spacing-2xl) 0;
    border-bottom: 1px solid var(--border);
}

.story-panel:last-child {
    border-bottom: none;
}

.story-panel-reverse .story-copy {
    order: 2;
}

.story-panel-reverse .story-media {
    order: 1;
}

.story-copy {
    max-width: 520px;
}

.story-step {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    margin-bottom: var(--spacing-lg);
    border-radius: 999px;
    background-color: var(--brand);
    color: var(--inverse);
    font-weight: 700;
    box-shadow: 0 14px 34px rgba(16, 74, 122, 0.26);
}

.story-copy h2 {
    font-size: 3rem;
    line-height: 1.12;
    margin-bottom: var(--spacing-lg);
    color: var(--text);
}

.story-copy .button {
    margin-top: var(--spacing-xs);
}

.story-media {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 360px;
    border: 1px solid rgba(23, 74, 120, 0.24);
    border-radius: 1rem;
    background:
        linear-gradient(135deg, rgba(16, 74, 122, 0.18), rgba(15, 123, 53, 0.1)),
        linear-gradient(180deg, #fff7cf, #f8efc4);
    box-shadow: 0 30px 80px rgba(17, 24, 39, 0.12);
    overflow: hidden;
}

.story-media::before {
    content: attr(data-image);
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    right: var(--spacing-md);
    color: var(--muted);
    font-size: 0.85rem;
    text-align: center;
}

.story-media::after {
    content: "";
    width: 74%;
    aspect-ratio: 16 / 9;
    border-radius: 0.75rem;
    background:
        linear-gradient(90deg, rgba(16, 74, 122, 0.22), rgba(255, 247, 207, 0.7)),
        repeating-linear-gradient(180deg, rgba(17, 24, 39, 0.08) 0 1px, transparent 1px 34px);
    border: 1px solid rgba(23, 74, 120, 0.22);
    box-shadow: 0 18px 50px rgba(16, 74, 122, 0.2);
}

.story-media span {
    position: absolute;
    z-index: 1;
    padding: 0.65rem 1rem;
    border-radius: 999px;
    background: rgba(255, 247, 207, 0.9);
    color: var(--text);
    font-weight: 600;
    box-shadow: 0 12px 34px rgba(17, 24, 39, 0.12);
}

.story-media-image {
    padding: var(--spacing-md);
    background: var(--surface);
}

.story-media-image::before,
.story-media-image::after {
    content: none;
}

.story-media-image img {
    display: block;
    width: 100%;
    height: 100%;
    max-height: 430px;
    object-fit: contain;
    border-radius: 0.75rem;
}

.story-panel-final {
    padding: var(--spacing-2xl);
    margin-top: var(--spacing-xl);
    border: 1px solid rgba(23, 74, 120, 0.24);
    border-radius: 1rem;
    background: linear-gradient(135deg, rgba(16, 74, 122, 0.12), rgba(255, 247, 207, 0.92));
}

/* Sections */
.section-title {
    font-size: 2.25rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text);
}

.section-intro {
    text-align: center;
    color: var(--muted);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-2xl);
}

/* Concept Section */
.concept-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--surface-soft);
}

.concept-content {
    max-width: 800px;
    margin: 0 auto var(--spacing-2xl);
    text-align: center;
}

.concept-content p {
    font-size: 1.1rem;
    color: var(--text);
    line-height: 1.8;
}

.belief-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.belief-card {
    background-color: var(--bg);
    padding: var(--spacing-lg);
    border-radius: 0.75rem;
    border: 1px solid var(--border);
}

.belief-card h3 {
    color: var(--brand);
    margin-bottom: var(--spacing-md);
}

/* Products Section */
.products-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.product-card,
.service-card,
.usecase-card,
.build-card,
.help-card,
.why-card,
.decentralized-card,
.belief-card {
    background-color: var(--surface);
    padding: var(--spacing-lg);
    border-radius: 0.75rem;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.product-card:hover,
.service-card:hover,
.usecase-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: var(--brand);
}

.product-card h3,
.service-card h3,
.usecase-card h3,
.build-card h3,
.help-card h3,
.why-card h3,
.decentralized-card h3 {
    color: var(--text);
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

.card-subtitle {
    font-size: 0.95rem;
    color: var(--brand);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.card-description {
    color: var(--muted);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.tag {
    display: inline-block;
    background-color: var(--surface-soft);
    color: var(--text);
    padding: 0.35rem 0.75rem;
    border-radius: 0.35rem;
    font-size: 0.85rem;
    font-weight: 500;
}

.card-link {
    display: inline-block;
    color: var(--brand);
    font-weight: 600;
    margin-top: var(--spacing-md);
    transition: var(--transition);
}

.card-link:hover {
    color: var(--brand-dark);
}

/* Services Section */
.services-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--surface-soft);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background-color: var(--bg);
}

.use-cases,
.key-message {
    background-color: var(--surface-soft);
    padding: var(--spacing-md);
    border-radius: 0.5rem;
    margin-bottom: var(--spacing-md);
}

.use-cases strong,
.key-message strong {
    color: var(--text);
    display: block;
    margin-bottom: var(--spacing-sm);
}

.use-cases ul {
    list-style: none;
    padding-left: 0;
}

.use-cases li {
    color: var(--muted);
    padding: 0.35rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.use-cases li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--brand);
    font-weight: bold;
}

/* Decentralized Section */
.decentralized-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg);
}

.decentralized-content {
    max-width: 900px;
    margin: 0 auto var(--spacing-2xl);
    text-align: center;
}

.decentralized-content p {
    font-size: 1.05rem;
    color: var(--text);
    line-height: 1.8;
}

.highlight {
    font-size: 1.25rem !important;
    color: var(--brand);
    font-weight: 600;
    margin-top: var(--spacing-lg);
}

.decentralized-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* Use Cases Section */
.usecases-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--surface-soft);
}

.usecases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* Builds Section */
.builds-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg);
}

.builds-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* Help Section */
.help-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--surface-soft);
}

.help-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* Why Section */
.why-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* Final CTA Section */
.final-cta-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--surface-soft);
    text-align: center;
}

.final-cta-section h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.final-cta-section p {
    font-size: 1.1rem;
    color: var(--muted);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
.footer {
    background-color: var(--text);
    color: var(--inverse);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid rgba(255, 247, 207, 0.16);
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--inverse);
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    text-decoration: none;
}

.footer-logo-img {
    width: 36px;
    height: auto;
    display: block;
}

.logo-mask {
    display: inline-block;
    width: 32px;
    aspect-ratio: 828 / 811;
    background-color: currentColor;
    mask: url("./assets/logo/daybook-cloud-logo-small.svg") center / contain no-repeat;
    -webkit-mask: url("./assets/logo/daybook-cloud-logo-small.svg") center / contain no-repeat;
}

.hero-logo-img {
    display: block;
    width: 100%;
    max-width: 600px;
    height: auto;
}

/* Logo color variants */
.logo-mask {
    display: inline-block;
    background-color: currentColor;
    mask: url("./assets/logo/daybook-cloud-logo-small.svg") center / contain no-repeat;
    -webkit-mask: url("./assets/logo/daybook-cloud-logo-small.svg") center / contain no-repeat;
}

/* Default: Dark text color */
.logo-default {
    color: var(--text);
}

/* Header, Hero (dark text) */
.logo-blue {
    color: var(--text);
}

/* Green variant */
.logo-green {
    color: #16a34a;
}

/* Brand variant */
.logo-red {
    color: var(--brand);
}

.footer-tagline {
    color: var(--muted);
    font-size: 0.95rem;
    margin-bottom: 0;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
}

.footer-section h4 {
    color: var(--inverse);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: var(--muted);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--inverse);
}

.footer-bottom {
    text-align: center;
    color: var(--muted);
    font-size: 0.9rem;
}

/* Responsive Design - Tablet */
@media (max-width: 768px) {
    :root {
        --spacing-2xl: 2.5rem;
        --spacing-lg: 1.5rem;
    }

    html {
        font-size: 16px;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    h1 {
        font-size: 2rem;
        margin-bottom: var(--spacing-md);
    }

    h2 {
        font-size: 1.75rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    p {
        font-size: 1rem;
        line-height: 1.6;
    }

    /* Header & Navigation */
    .header {
        position: sticky;
        top: 0;
        z-index: 100;
    }

    .header-content {
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        padding: var(--spacing-md);
        gap: var(--spacing-md);
    }

    .logo {
        width: 100%;
        gap: var(--spacing-sm);
    }

    .logo-wordmark {
        width: 230px;
        max-width: 70vw;
        max-height: 58px;
    }

    .nav {
        width: 100%;
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--spacing-sm);
        justify-content: flex-start;
    }

    .nav-link {
        padding: 0.5rem 1rem;
        font-size: 0.95rem;
        min-height: 44px;
        display: flex;
        align-items: center;
        border-bottom: 2px solid transparent;
        transition: var(--transition);
    }

    .nav-link:active {
        border-bottom-color: var(--brand);
    }

    /* Hero Section */
    .hero {
        padding: var(--spacing-lg) 0;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .hero-headline {
        font-size: 2rem;
        line-height: 1.2;
    }

    .hero-subheadline {
        font-size: 1.1rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .story-hero {
        padding: var(--spacing-xl) 0 var(--spacing-lg);
    }

    .story-hero-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .story-hero h1 {
        font-size: 2.45rem;
        line-height: 1.08;
    }

    .story-hero p:not(.eyebrow) {
        font-size: 1.1rem;
    }

    .story-hero-media {
        min-height: 260px;
    }

    .story-hero .button {
        width: fit-content;
    }

    .story-panel,
    .story-panel-final {
        grid-template-columns: 1fr;
        min-height: auto;
        gap: var(--spacing-lg);
        padding: var(--spacing-xl) 0;
    }

    .story-panel-final {
        padding: var(--spacing-lg);
    }

    .story-panel-reverse .story-copy,
    .story-panel-reverse .story-media {
        order: initial;
    }

    .story-copy h2 {
        font-size: 2rem;
    }

    .story-media {
        min-height: 260px;
    }

    .button {
        width: 100%;
        text-align: center;
        padding: 0.75rem 1.5rem;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1rem;
    }

    /* Sections */
    .section-title {
        font-size: 1.75rem;
        margin-bottom: var(--spacing-lg);
    }

    .section-intro {
        font-size: 1rem;
        margin-bottom: var(--spacing-lg);
    }

    /* Cards & Grids */
    .belief-cards,
    .products-grid,
    .services-grid,
    .usecases-grid,
    .decentralized-grid,
    .builds-grid,
    .help-grid,
    .why-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .product-card,
    .service-card,
    .usecase-card,
    .build-card,
    .help-card,
    .why-card,
    .belief-card {
        padding: var(--spacing-lg);
    }

    /* Footer */
    .footer {
        padding: var(--spacing-lg) 0 var(--spacing-md);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        margin-bottom: var(--spacing-lg);
        padding-bottom: var(--spacing-lg);
        border-bottom: 1px solid rgba(255, 247, 207, 0.16);
    }

    .footer-brand {
        padding-bottom: var(--spacing-md);
    }

    .footer-logo {
        font-size: 1.15rem;
        margin-bottom: var(--spacing-md);
    }

    .footer-logo-img {
        width: 32px;
        height: 32px;
    }

    .footer-tagline {
        font-size: 0.95rem;
        margin: 0;
        line-height: 1.5;
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }

    .footer-section h4 {
        font-size: 0.95rem;
        margin-bottom: var(--spacing-md);
    }

    .footer-section a,
    .footer-section li {
        font-size: 0.95rem;
        min-height: 44px;
        display: flex;
        align-items: center;
        padding: 0.5rem 0;
        line-height: 1.5;
    }

    .footer-bottom {
        text-align: center;
        font-size: 0.9rem;
        padding: var(--spacing-md) 0 0;
        line-height: 1.5;
    }
}

/* Mobile - Small Devices */
@media (max-width: 480px) {
    :root {
        --spacing-2xl: 1.5rem;
        --spacing-lg: 1rem;
        --spacing-md: 0.75rem;
    }

    html {
        font-size: 14px;
    }

    body {
        line-height: 1.5;
    }

    .container {
        padding: 0 1rem;
    }

    h1 {
        font-size: 1.5rem;
        line-height: 1.2;
    }

    h2 {
        font-size: 1.35rem;
        line-height: 1.2;
    }

    h3 {
        font-size: 1.1rem;
    }

    p {
        font-size: 0.95rem;
    }

    a {
        font-size: inherit;
    }

    /* Header & Navigation */
    .header {
        position: sticky;
        top: 0;
        z-index: 100;
        background-color: var(--bg);
    }

    .header-content {
        padding: 0.75rem;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 0;
        flex-wrap: nowrap;
    }

    .logo {
        font-size: 1.1rem;
        flex: 1;
    }

    .logo-wordmark {
        width: 210px;
        max-width: 68vw;
        max-height: 54px;
    }

    .logo-img {
        width: 32px;
    }

    /* Hamburger Menu */
    .nav-toggle-label {
        display: block;
        order: 2;
    }

    .hamburger {
        width: 24px;
        height: 18px;
    }

    .nav {
        display: none;
    }

    .nav-toggle:checked ~ .nav {
        display: flex !important;
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        width: 100%;
        flex-direction: column;
        background-color: var(--bg);
        border-bottom: 1px solid var(--border);
        padding: 0;
        z-index: 99;
        gap: 0;
        margin: 0;
    }

    .nav-link {
        padding: 1rem 1.5rem;
        font-size: 0.95rem;
        min-height: 48px;
        display: flex;
        align-items: center;
        border-bottom: 1px solid var(--border);
        color: var(--text);
        transition: var(--transition);
    }

    .nav-link:last-child {
        border-bottom: none;
    }

    .nav-link:active,
    .nav-link:hover {
        background-color: var(--surface);
        color: var(--brand);
    }

    /* Hero Section */
    .hero {
        padding: 1rem 0;
    }

    .hero-content {
        gap: 1rem;
    }

    .eyebrow {
        font-size: 0.75rem;
    }

    .hero-headline {
        font-size: 1.35rem;
        margin-bottom: 0.5rem;
    }

    .hero-subheadline {
        font-size: 1rem;
    }

    .hero-supporting {
        font-size: 0.95rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 0.5rem;
    }

    .button {
        width: 100%;
        padding: 0.65rem 1rem;
        font-size: 0.95rem;
        min-height: 44px;
        border-radius: 0.4rem;
    }

    .story-hero .button {
        width: fit-content;
    }

    /* Sections */
    .section-title {
        font-size: 1.35rem;
        margin-bottom: 1rem;
    }

    .section-intro {
        font-size: 0.95rem;
        margin-bottom: 1rem;
    }

    /* Cards & Grids */
    .product-card,
    .service-card,
    .usecase-card,
    .build-card,
    .help-card,
    .why-card,
    .belief-card,
    .decentralized-card {
        padding: 1rem;
        margin-bottom: 0.75rem;
    }

    .product-card h3,
    .service-card h3,
    .usecase-card h3,
    .build-card h3,
    .help-card h3,
    .why-card h3,
    .belief-card h3 {
        font-size: 1.05rem;
    }

    .card-description {
        font-size: 0.9rem;
    }

    /* Footer */
    .footer {
        padding: 1.5rem 0 1rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-bottom: 1.5rem;
        padding-bottom: 1.5rem;
    }

    .footer-brand {
        padding-bottom: 0.5rem;
    }

    .footer-logo {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        margin-bottom: 0.75rem;
        font-size: 1.05rem;
    }

    .footer-logo-img {
        width: 28px;
        height: 28px;
    }

    .footer-tagline {
        font-size: 0.9rem;
        margin: 0;
        line-height: 1.4;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .footer-section {
        padding-bottom: 0.5rem;
    }

    .footer-section h4 {
        font-size: 0.9rem;
        margin-bottom: 0.75rem;
        font-weight: 600;
        letter-spacing: 0.02em;
        text-transform: uppercase;
    }

    .footer-section ul {
        margin: 0;
        padding: 0;
    }

    .footer-section li {
        margin-bottom: 0;
        list-style: none;
    }

    .footer-section a {
        font-size: 0.9rem;
        min-height: 44px;
        padding: 0.5rem 0;
        display: flex;
        align-items: center;
        line-height: 1.4;
        color: var(--muted);
        word-break: break-word;
    }

    .footer-section a:active,
    .footer-section a:hover {
        color: var(--inverse);
    }

    .footer-bottom {
        font-size: 0.85rem;
        padding: 1rem;
        text-align: center;
        line-height: 1.5;
    }

    /* Spacing adjustments */
    .concept-section,
    .products-section,
    .services-section,
    .decentralized-section,
    .usecases-section,
    .builds-section,
    .help-section,
    .why-section,
    .final-cta-section {
        padding: 1.5rem 0;
    }

    .final-cta-section h2 {
        font-size: 1.25rem;
        margin-bottom: 0.75rem;
    }

    .final-cta-section p {
        font-size: 0.95rem;
        margin-bottom: 1rem;
    }

    /* Contact form improvements */
    input[type="text"],
    input[type="email"],
    textarea {
        width: 100%;
        padding: 0.75rem;
        font-size: 1rem;
        margin-bottom: 0.75rem;
        border: 1px solid var(--border);
        border-radius: 0.4rem;
        font-family: inherit;
    }

    input[type="text"]:focus,
    input[type="email"]:focus,
    textarea:focus {
        outline: none;
        border-color: var(--brand);
        box-shadow: 0 0 0 3px rgba(177, 18, 38, 0.1);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles */
a:focus,
button:focus,
.button:focus {
    outline: 2px solid var(--brand);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header,
    .footer,
    .nav {
        display: none;
    }

    body {
        background-color: white;
        color: black;
    }

    a {
        color: black;
    }
}