@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300..700&display=swap');

:root {
    --color-page-bg: #FAFAF8;
    --color-page-bg-rgb: 250, 250, 248;
    --color-surface: #FFFFFF;
    --color-surface-muted: #F0F0EE;
    --color-surface-subtle: #F5F5F5;
    --color-highlight-bg: #eef7f4;
    --color-text-primary: #111111;
    --color-text-primary-contrast: #ffffff;
    --color-text-secondary: #666666;
    --color-text-tertiary: #999999;
    --color-text-muted: #858585;
    --color-text-subtle: #737373;
    --color-placeholder: #A0A0A0;
    --color-border: #EAEAEA;
    --color-border-strong: #DEDEDE;
    --color-border-active: #C0C0C0;
    --color-primary: #fad100;
    --color-primary-hover: #e8bf00;
    --color-primary-contrast: #111111;
    --color-secondary: #dbb90b;
    --color-secondary-hover: #e6c417;
    --color-secondary-contrast: #FFFFFF;
    --color-secondary-rgb: 250, 209, 0;
    --color-primary-rgb: 250, 209, 0;
    
    --color-accent: var(--color-secondary);
    --color-success: #10B981;
    --color-danger: #C0392B;

    --page-bg: var(--color-page-bg);
    --card-bg: var(--color-surface);
    --highlight-bg: var(--color-highlight-bg);
    --text-primary: var(--color-text-primary);
    --text-primary-contrast: var(--color-text-primary-contrast);
    --text-secondary: var(--color-text-secondary);
    --text-tertiary: var(--color-text-tertiary);
    --text-muted: var(--color-text-muted);
    --text-subtle: var(--color-text-subtle);
    --text-placeholder: var(--color-placeholder);
    --border: var(--color-border);
    --border-strong: var(--color-border-strong);
    --border-active: var(--color-border-active);
    --primary: var(--color-primary);
    --primary-hover: var(--color-primary-hover);
    --primary-contrast: var(--color-primary-contrast);
    --secondary: var(--color-secondary);
    --secondary-hover: var(--color-secondary-hover);
    --secondary-contrast: var(--color-secondary-contrast);
    --accent: var(--color-accent);
    --success: var(--color-success);
    --danger: var(--color-danger);

    --border-soft: rgba(234, 234, 234, 0.74);
    --border-subtle: rgba(234, 234, 234, 0.98);
    --accent-border-soft: rgba(var(--color-secondary-rgb), 0.3);
    --focus-ring: 0 0 0 4px rgba(var(--color-secondary-rgb), 0.16);
    --shadow-soft: 0 24px 70px rgba(17, 17, 17, 0.08);
    --shadow-soft-hover: 0 28px 78px rgba(17, 17, 17, 0.1);

    --font-family-base: "Space Grotesk", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-family-mono: ui-monospace, "Cascadia Code", "Fira Mono", monospace;

    --text-s: 13px;
    --text-m: 15px;
    --text-l: 18px;
    --text-xl: 32px;
    --text-1xl: clamp(40px, 6vw, 56px);

    --font-size-8: 8px;
    --font-size-9: 9px;
    --font-size-10: 10px;
    --font-size-11: 11px;
    --font-size-12: 12px;
    --font-size-caption: var(--text-s);
    --font-size-small: var(--text-s);
    --font-size-body: var(--text-m);
    --font-size-body-large: var(--text-l);
    --font-size-intro: var(--text-l);
    --font-size-card-title: var(--text-l);
    --font-size-section-title: var(--text-xl);
    --font-size-page-title: var(--text-1xl);
    --font-size-fluid-hero: var(--text-1xl);
    --line-height-tight: 1;
    --line-height-heading: 1.2;
    --line-height-body: 1.6;
    --line-height-copy: 1.7;
    --heading-font: "Space Grotesk", sans-serif;
}


* {
    box-sizing: border-box;
}

html {
    background: var(--page-bg);
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--page-bg);
    color: var(--text-primary);
    font-family: var(--font-family-base);
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
textarea,
select {
    font: inherit;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--page-bg);
    border-bottom: 1px solid var(--border-soft);
}

.site-nav {
    height: 72px;
    width: min(100% - 40px, 1100px);
    margin-inline: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

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

.brand-logo {
    width: 42px;
    height: 42px;
}

.brand-title {
    font-size: var(--text-l);
    font-weight: 700;
    color: inherit;
    padding-left: 8px;
    text-decoration: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-link {
    color: var(--text-secondary);
    font-size: var(--text-s);
    font-weight: 500;
    text-decoration: none;
    transition: color 180ms ease;
}

.nav-link:hover,
.nav-link:focus-visible {
    color: var(--text-primary);
}

.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 6px;
    flex-shrink: 0;
}

.nav-hamburger:hover {
    background: rgba(0, 0, 0, 0.04);
}

.nav-hamburger span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform 220ms ease, opacity 220ms ease;
    transform-origin: center;
}

.nav-hamburger.is-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-hamburger.is-open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.nav-hamburger.is-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
    display: none;
    flex-direction: column;
    padding: 8px 0 16px;
}

.mobile-nav.is-open {
    display: flex;
}

.mobile-nav-link {
    width: min(100% - 40px, 1100px);
    margin-inline: auto;
    padding: 12px 0;
    color: var(--text-secondary);
    font-size: var(--text-m);
    font-weight: 500;
    text-decoration: none;
    transition: color 180ms ease;
    border-bottom: 1px solid var(--border-soft);
}

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

.mobile-nav-link:hover,
.mobile-nav-link:focus-visible {
    color: var(--text-primary);
}

@media (max-width: 640px) {
    .nav-hamburger {
        display: flex;
    }

    .nav-links {
        display: none;
    }
}

.site-footer {
    border-top: 1px solid var(--border-soft);
    padding-block: 28px;
}

.footer-inner {
    width: min(100% - 40px, 1100px);
    margin-inline: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.footer-copy {
    margin: 0;
    color: var(--text-muted);
    font-size: var(--text-s);
    flex-shrink: 0;
}

.footer-links {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px 16px;
    justify-content: flex-end;
}

.footer-links a {
    color: var(--text-muted);
    font-size: var(--text-s);
    text-decoration: none;
    transition: color 180ms ease;
}

.footer-links a:hover,
.footer-links a:focus-visible {
    color: var(--text-primary);
}

.footer-badges {
    width: min(100% - 40px, 1100px);
    margin-inline: auto;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 16px;
}

.footer-badges a {
    display: inline-flex;
    opacity: 0.85;
    transition: opacity 180ms ease;
}

.footer-badges a:hover,
.footer-badges a:focus-visible {
    opacity: 1;
}

@media (max-width: 560px) {
    .footer-inner {
        flex-direction: column;
        align-items: center;
        gap: 14px;
        text-align: center;
    }

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

    .footer-badges {
        justify-content: center;
    }
}

.success-message {
    max-width: 300px;
    text-align: center;
}

.success-message strong {
    display: block;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-size: var(--text-l);
    line-height: 1.2;
}

.success-message span {
    display: block;
    color: var(--text-secondary);
    font-size: var(--text-m);
    line-height: 1.6;
}