:root {
    --color-brand: #101010;
    --color-text: #111111;
    --color-text-secondary: #444444;
    --color-text-tertiary: #6a6a6a;
    --color-border: #dddddd;
    --color-border-strong: #c9c9c9;
    --color-bg: #fcfcfc;
    --color-surface: #ffffff;
    --color-surface-muted: #f5f5f5;

    --spacing-xs: 0.5rem;
    --spacing-sm: 0.9rem;
    --spacing-md: 1.35rem;
    --spacing-lg: 2.4rem;
    --spacing-xl: 4.5rem;

    --max-width: 1100px;

    --font-wordmark: 'Sora', system-ui, sans-serif;
    --font-body: 'Sora', system-ui, sans-serif;
    --line-height-body: 1.65;
    --line-height-heading: 1.12;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    line-height: var(--line-height-body);
    background: var(--color-bg);
    font-size: 16px;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.site-shell {
    min-height: 100vh;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

h1,
h2,
h3 {
    color: var(--color-brand);
    line-height: var(--line-height-heading);
    font-weight: 600;
}

h1 {
    font-size: 3rem;
    letter-spacing: -0.05em;
}

h2 {
    font-size: 1.75rem;
    letter-spacing: -0.03em;
}

h3 {
    font-size: 1rem;
    letter-spacing: -0.01em;
}

p {
    margin-bottom: var(--spacing-sm);
}

a {
    color: inherit;
}

ul {
    list-style: none;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(252, 252, 252, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(17, 17, 17, 0.08);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 72px;
    gap: var(--spacing-md);
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    text-decoration: none;
    color: var(--color-brand);
}

.brand-wordmark {
    font-family: var(--font-wordmark);
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.brand-logo {
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.4rem;
}

.nav-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.92rem;
}

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

.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--color-brand);
    cursor: pointer;
    padding: 0.35rem;
}

.hero-section {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) minmax(280px, 0.95fr);
    gap: var(--spacing-lg);
    align-items: start;
    padding: calc(var(--spacing-xl) + 1rem) 0 var(--spacing-xl);
}

.hero-copy {
    max-width: 760px;
}

.status-pill,
.panel-label,
.section-kicker {
    display: inline-flex;
    align-items: center;
    color: var(--color-text-secondary);
    font-size: 0.76rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.status-pill {
    padding: 0.38rem 0.65rem;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background: var(--color-surface);
    margin-bottom: var(--spacing-md);
}

.hero-lead {
    max-width: 680px;
    font-size: 1.12rem;
    color: var(--color-text-secondary);
    margin: var(--spacing-md) 0 var(--spacing-lg);
}

.hero-panel,
.about-note {
    border: 1px solid var(--color-border);
    border-radius: 10px;
    background: var(--color-surface);
    padding: 1.15rem 1.2rem;
}

.panel-label {
    margin-bottom: var(--spacing-sm);
}

.compact-list {
    display: grid;
    gap: 0.75rem;
}

.compact-list li {
    position: relative;
    padding-left: 1rem;
    color: var(--color-text-secondary);
}

.compact-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.7rem;
    width: 0.32rem;
    height: 0.32rem;
    border-radius: 999px;
    background: var(--color-brand);
}

.hero-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.hero-actions .btn {
    min-width: 10.75rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.15rem;
    border-radius: 8px;
    border: 1px solid transparent;
    text-decoration: none;
    font-size: 0.94rem;
    font-weight: 500;
    transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.btn-primary {
    background: var(--color-brand);
    color: #ffffff;
}

.btn-primary:hover {
    background: #000000;
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-brand);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-border-strong);
}

.content-section {
    padding: var(--spacing-lg) 0;
}

.section-divider {
    border-top: 1px solid rgba(17, 17, 17, 0.08);
}

.section-intro {
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
}

.section-kicker {
    margin-bottom: 0.6rem;
}

.split-grid,
.workflow-grid {
    display: grid;
    gap: var(--spacing-md);
}

.split-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.workflow-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.feature-block,
.workflow-column {
    padding-top: 0.15rem;
}

.feature-block h3,
.workflow-column .panel-label {
    margin-bottom: 0.6rem;
}

.feature-block p,
.workflow-column p,
.about-copy p,
.future-copy,
.contact-copy,
.about-note p {
    color: var(--color-text-secondary);
}

.profile-card {
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 1.1rem 1.15rem;
    background: var(--color-surface);
}

.profile-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.profile-note {
    margin-bottom: 0;
    color: var(--color-text-tertiary);
}

.about-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(260px, 0.8fr);
    gap: var(--spacing-lg);
}

.contact-section {
    padding-bottom: var(--spacing-xl);
}

.site-header.minimal {
    position: static;
    background: transparent;
    backdrop-filter: none;
}

.back-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.92rem;
}

.back-link:hover,
.text-link:hover {
    color: var(--color-brand);
}

.page-title {
    padding-top: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.policy-shell {
    max-width: 760px;
    padding-bottom: var(--spacing-xl);
}

.policy-card {
    border: 1px solid var(--color-border);
    border-radius: 12px;
    background: var(--color-surface);
    padding: 1.5rem;
}

.privacy-intro {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.section-heading {
    margin-top: 1.7rem;
    margin-bottom: 0.7rem;
    font-size: 1.05rem;
}

.policy-card ul {
    display: grid;
    gap: 0.7rem;
    margin-bottom: var(--spacing-sm);
}

.policy-card li {
    position: relative;
    padding-left: 1rem;
    color: var(--color-text-secondary);
}

.policy-card li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.7rem;
    width: 0.3rem;
    height: 0.3rem;
    border-radius: 999px;
    background: var(--color-brand);
}

.privacy-footer-meta {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-tertiary);
    font-size: 0.9rem;
}

.text-link {
    color: var(--color-brand);
    text-decoration: none;
}

.site-footer {
    border-top: 1px solid rgba(17, 17, 17, 0.08);
    padding: var(--spacing-md) 0 var(--spacing-lg);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-tertiary);
    font-size: 0.9rem;
}

.site-footer a {
    text-decoration: none;
    color: var(--color-text-secondary);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.site-footer a:hover {
    color: var(--color-brand);
}

.btn:focus-visible,
.nav-links a:focus-visible,
.mobile-menu-btn:focus-visible,
.back-link:focus-visible,
.text-link:focus-visible {
    outline: 2px solid var(--color-brand);
    outline-offset: 2px;
}

@media (max-width: 960px) {
    h1 {
        font-size: 2.45rem;
    }

    .hero-section,
    .about-layout,
    .split-grid,
    .workflow-grid {
        grid-template-columns: 1fr;
    }

    .hero-section {
        padding-top: var(--spacing-xl);
        gap: 1.6rem;
    }

    .hero-lead {
        font-size: 1.06rem;
    }

    .hero-panel,
    .about-note {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 2rem;
        --spacing-xl: 3.25rem;
    }

    h1 {
        font-size: 2.05rem;
    }

    h2 {
        font-size: 1.45rem;
    }

    .container {
        padding: 0 1rem;
    }

    .nav-container {
        position: relative;
        min-height: 64px;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: calc(100% - 1px);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.9rem;
        padding: var(--spacing-md);
        border: 1px solid var(--color-border);
        background: var(--color-surface);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: inline-flex;
    }

    .hero-section {
        padding: 2.7rem 0 2.4rem;
        gap: 1.35rem;
    }

    .hero-actions {
        display: grid;
        grid-template-columns: 1fr;
        width: 100%;
    }

    .hero-actions .btn {
        display: flex;
        width: 100%;
        min-width: 0;
    }

    .content-section {
        padding: 1.7rem 0;
    }

    .section-intro {
        margin-bottom: 1.35rem;
    }

    .hero-panel,
    .about-note,
    .policy-card {
        padding: 1.1rem;
    }

    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.82rem;
        letter-spacing: -0.045em;
    }

    h2 {
        font-size: 1.28rem;
    }

    .container {
        padding: 0 0.95rem;
    }

    .brand-wordmark {
        font-size: 0.95rem;
    }

    .status-pill,
    .panel-label,
    .section-kicker {
        font-size: 0.7rem;
        letter-spacing: 0.1em;
    }

    .hero-lead {
        font-size: 1rem;
        margin: 1rem 0 1.3rem;
    }

    .compact-list {
        gap: 0.65rem;
    }

    .content-section {
        padding: 1.5rem 0;
    }

    .page-title {
        padding-top: 2.3rem;
    }
}