/* ==========================================================================
   SpudByte shared design system
   Used by the home page and every project page.
   Project pages only override accent tokens and add a flourish in
   /css/themes/<project>.css
   ========================================================================== */

/* -------------------------
   Tokens
   ------------------------- */
:root {
    /* Warm "potato" dark palette (pulled from the SpudByte banner) */
    --bg: #17120e;
    --bg-2: #1e1711;
    --surface: #241b14;
    --surface-2: #2e231a;
    --line: #3a2d21;
    --line-2: #4d3c2c;

    --text: #fbf3e6;
    --text-2: #cdbba5;
    --muted: #94826e;

    --accent: #f9c47c;          /* potato gold */
    --accent-2: #4fd8e8;        /* pixel cyan */
    --accent-soft: color-mix(in srgb, var(--accent) 14%, transparent);
    --accent-line: color-mix(in srgb, var(--accent) 45%, transparent);
    --on-accent: #1a120b;

    --font: 'Space Grotesk', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Consolas, monospace;
    --pixel: 'Pixelify Sans', 'Space Grotesk', ui-monospace, monospace;

    --radius: 14px;
    --radius-lg: 22px;
    --ease: cubic-bezier(.2, .7, .2, 1);
    --container: 1120px;
    --nav-h: 64px;

    /* Legacy aliases so any old inline style keeps working */
    --color-background: var(--bg);
    --color-surface: var(--surface);
    --color-surface-elevated: var(--surface-2);
    --color-accent: var(--accent);
    --color-accent-light: var(--accent);
    --color-accent-dark: var(--accent);
    --color-text-primary: var(--text);
    --color-text-secondary: var(--text-2);
    --color-text-muted: var(--muted);
    --color-border: var(--line);
    --color-border-light: var(--line-2);
    --font-family-pixel: var(--pixel);
    --spacing-xs: .25rem; --spacing-sm: .5rem; --spacing-md: 1rem; --spacing-lg: 1.5rem;
    --spacing-xl: 2rem; --spacing-2xl: 3rem; --spacing-3xl: 4rem; --spacing-4xl: 6rem;
    --font-size-xs: .75rem; --font-size-sm: .875rem; --font-size-base: 1rem; --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem; --font-size-2xl: 1.5rem; --font-size-3xl: 2rem;
    --radius-sm: 6px; --radius-md: 10px; --radius-xl: 16px; --radius-full: 9999px;
}

/* -------------------------
   Reset + base
   ------------------------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--text);
    background: var(--bg);
    min-height: 100vh;
    overflow-x: hidden;
}

h1, h2, h3, h4 { font-family: var(--font); line-height: 1.12; letter-spacing: -0.02em; color: var(--text); font-weight: 700; }
p { color: var(--text-2); }
a { color: var(--accent); text-decoration: none; transition: color .15s; }
a:hover { color: var(--text); }
strong { color: var(--text); font-weight: 600; }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
::selection { background: var(--accent); color: var(--on-accent); }
:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; border-radius: 6px; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 110px 0; position: relative; }
.section--reduced { padding: 72px 0; }

/* soft paper-grain over the whole page for warmth */
body::before {
    content: '';
    position: fixed; inset: 0; z-index: -1; pointer-events: none;
    background:
        radial-gradient(900px 500px at 85% -10%, color-mix(in srgb, var(--accent) 9%, transparent), transparent 60%),
        radial-gradient(700px 420px at -5% 30%, color-mix(in srgb, var(--accent-2) 6%, transparent), transparent 60%);
}

/* -------------------------
   Utilities (kept from the old system)
   ------------------------- */
.flex { display: flex; } .flex-col { flex-direction: column; } .flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; } .justify-center { justify-content: center; } .justify-between { justify-content: space-between; }
.gap-sm { gap: .5rem; } .gap-md { gap: 1rem; } .gap-lg { gap: 1.5rem; }
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-auto-fit { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.text-center { text-align: center; } .text-accent { color: var(--accent); } .text-muted { color: var(--muted); }

/* -------------------------
   Buttons
   ------------------------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
    padding: 13px 24px; font-family: var(--font); font-size: .95rem; font-weight: 600;
    border-radius: var(--radius-full); border: 1.5px solid transparent;
    transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s, border-color .2s, color .2s;
    cursor: pointer; text-decoration: none; line-height: 1.2;
}
.btn--primary { background: var(--accent); color: var(--on-accent); box-shadow: 0 6px 0 -2px color-mix(in srgb, var(--accent) 45%, #000); }
.btn--primary:hover { color: var(--on-accent); transform: translateY(-2px); box-shadow: 0 9px 0 -2px color-mix(in srgb, var(--accent) 45%, #000), 0 14px 30px -10px var(--accent-line); }
.btn--primary:active { transform: translateY(2px); box-shadow: 0 2px 0 -1px color-mix(in srgb, var(--accent) 45%, #000); }
.btn--secondary { color: var(--text); border-color: var(--line-2); background: transparent; }
.btn--secondary:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn--sm { padding: 9px 16px; font-size: .85rem; }
.btn--disabled { opacity: .55; cursor: default; pointer-events: none; box-shadow: none; }
a > .btn { pointer-events: none; }   /* old markup wraps spans in anchors */

/* -------------------------
   Badge / tag
   ------------------------- */
.badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 14px; border-radius: var(--radius-full);
    font-family: var(--mono); font-size: .72rem; font-weight: 500; letter-spacing: .06em; text-transform: uppercase;
    color: var(--accent); background: var(--accent-soft); border: 1px solid var(--accent-line);
}
.tag {
    display: inline-block; padding: 3px 11px; border-radius: var(--radius-full);
    font-family: var(--mono); font-size: .72rem; color: var(--text-2);
    background: var(--surface-2); border: 1px solid var(--line);
}

/* -------------------------
   Nav (floating pill)
   ------------------------- */
.nav { position: fixed; top: 12px; left: 0; right: 0; z-index: 100; padding: 0 16px; pointer-events: none; }
.nav__content {
    pointer-events: auto;
    max-width: 960px; margin: 0 auto; padding: 8px 10px 8px 16px;
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
    background: color-mix(in srgb, var(--bg) 78%, transparent);
    -webkit-backdrop-filter: blur(14px) saturate(1.3); backdrop-filter: blur(14px) saturate(1.3);
    border: 1px solid var(--line); border-radius: var(--radius-full);
    box-shadow: 0 10px 40px -12px rgba(0,0,0,.6);
    transition: border-color .3s, box-shadow .3s;
}
.nav.is-stuck .nav__content { border-color: var(--line-2); }
.nav__logo { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; font-size: 1rem; letter-spacing: -.01em; white-space: nowrap; }
.nav__logo:hover { color: var(--text); }
.nav__logo img { width: 30px; height: 30px; border-radius: 8px; object-fit: contain; }
.nav__links { display: flex; align-items: center; gap: 4px; }
.nav__link { padding: 7px 14px; border-radius: var(--radius-full); font-size: .88rem; font-weight: 500; color: var(--text-2); transition: background .2s, color .2s; }
.nav__link:hover { color: var(--text); background: var(--surface-2); }
.nav__link.is-active { color: var(--on-accent); background: var(--accent); }
.nav__cta { margin-left: 4px; }
.nav__toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 40px; height: 40px; padding: 0 10px; border-radius: 50%; }
.nav__toggle span { height: 2px; width: 100%; background: var(--text); border-radius: 2px; transition: transform .25s var(--ease), opacity .2s; }
.nav.is-open .nav__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.is-open .nav__toggle span:nth-child(2) { opacity: 0; }
.nav.is-open .nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* -------------------------
   Hero (project pages)
   ------------------------- */
.hero { position: relative; min-height: min(100vh, 940px); display: flex; align-items: center; padding: 120px 0 80px; overflow: hidden; }
.hero__content { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; width: 100%; }
.hero__badge { margin-bottom: 22px; }
.hero__title { font-size: clamp(2.6rem, 6.4vw, 5rem); font-weight: 700; letter-spacing: -.04em; line-height: 1.02; margin-bottom: 22px; }
.hero__title span { color: var(--accent); background: linear-gradient(transparent 82%, var(--accent-soft) 82%); }
.hero__description, .hero__subtitle { font-size: 1.15rem; color: var(--text-2); max-width: 520px; margin-bottom: 32px; line-height: 1.7; }
.hero__cta, .hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }
.hero__visual { display: flex; justify-content: center; align-items: center; position: relative; }
.hero__image-wrapper { position: relative; }
.hero__image-wrapper::before {
    content: ''; position: absolute; inset: -14%; z-index: -1; border-radius: 50%;
    background: radial-gradient(circle, var(--accent-soft), transparent 68%);
}
.hero__image {
    width: min(100%, 340px); border-radius: 28%; border: 1px solid var(--line-2);
    background: var(--surface); box-shadow: 0 30px 60px -24px rgba(0,0,0,.8), 0 0 0 8px color-mix(in srgb, var(--surface) 70%, transparent);
    animation: float 6s ease-in-out infinite;
}
/* phone variant: wrap a screenshot in .phone */
.phone {
    position: relative; width: min(100%, 270px); aspect-ratio: 9 / 19.5; border-radius: 38px; padding: 9px;
    background: linear-gradient(160deg, #3b2e22, #1a130d);
    border: 1px solid var(--line-2);
    box-shadow: 0 40px 70px -28px rgba(0,0,0,.9), 0 0 0 1px #000, inset 0 0 0 2px rgba(255,255,255,.04);
    animation: float 6s ease-in-out infinite; transform: rotate(3deg);
}
.phone::before { content: ''; position: absolute; top: 15px; left: 50%; width: 62px; height: 6px; border-radius: 6px; background: #000; transform: translateX(-50%); z-index: 2; }
.phone img { width: 100%; height: 100%; object-fit: cover; object-position: top; border-radius: 30px; }
@keyframes float { 0%, 100% { translate: 0 0; } 50% { translate: 0 -12px; } }

/* -------------------------
   Section headers
   ------------------------- */
.section-header { text-align: center; margin-bottom: 64px; }
.section-title { font-size: clamp(2rem, 4.2vw, 3rem); letter-spacing: -.035em; margin-bottom: 14px; }
.section-subtitle { font-size: 1.1rem; color: var(--text-2); max-width: 580px; margin: 0 auto; }
.eyebrow { font-family: var(--mono); font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px; display: block; }

/* -------------------------
   Features
   ------------------------- */
.features, .stages, .cta-section, .contact-section { background: var(--bg-2); border-top: 1px solid var(--line); }
.features { border-bottom: 1px solid var(--line); }
.feature-card {
    position: relative; padding: 28px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
    transition: transform .3s var(--ease), border-color .3s, background .3s; overflow: hidden;
}
.feature-card::after {
    content: ''; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .3s;
    background: radial-gradient(260px 160px at var(--mx, 50%) var(--my, 0%), var(--accent-soft), transparent 70%);
}
.feature-card:hover { transform: translateY(-5px) rotate(-.4deg); border-color: var(--accent-line); }
.feature-card:hover::after { opacity: 1; }
.feature-card__icon {
    width: 52px; height: 52px; margin-bottom: 18px; display: grid; place-items: center; font-size: 1.5rem;
    border-radius: 14px; background: var(--accent-soft); border: 1px solid var(--accent-line);
    transition: transform .3s var(--ease);
}
.feature-card:hover .feature-card__icon { transform: rotate(-8deg) scale(1.1); }
.feature-card__title { font-size: 1.15rem; margin-bottom: 8px; }
.feature-card__description { font-size: .95rem; color: var(--text-2); }

/* -------------------------
   Steps
   ------------------------- */
.steps { max-width: 680px; margin: 0 auto; position: relative; }
.steps::before { content: ''; position: absolute; left: 21px; top: 28px; bottom: 28px; width: 2px; background: repeating-linear-gradient(to bottom, var(--line-2) 0 6px, transparent 6px 12px); }
.step { display: flex; gap: 22px; align-items: flex-start; padding: 18px 0; position: relative; }
.step__number {
    flex-shrink: 0; width: 44px; height: 44px; display: grid; place-items: center; z-index: 1;
    font-family: var(--pixel); font-size: 1.2rem; font-weight: 600; color: var(--on-accent);
    background: var(--accent); border-radius: 12px; box-shadow: 0 4px 0 color-mix(in srgb, var(--accent) 45%, #000);
    transform: rotate(-4deg); transition: transform .3s var(--ease);
}
.step:hover .step__number { transform: rotate(4deg) scale(1.08); }
.step__title { font-size: 1.15rem; margin-bottom: 4px; }
.step__description { color: var(--text-2); }

/* -------------------------
   Cards, tables, tech, stage cards
   ------------------------- */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 26px; transition: border-color .3s, transform .3s var(--ease); }
.card:hover { border-color: var(--accent-line); transform: translateY(-3px); }
.card__title { font-size: 1.1rem; margin-bottom: 8px; }
.card__description { font-size: .95rem; }

.scoring-table, .waves-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: .95rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.scoring-table th, .scoring-table td, .waves-table th, .waves-table td { padding: 16px 20px; text-align: left; border-bottom: 1px solid var(--line); }
.scoring-table th, .waves-table th { font-family: var(--mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); background: var(--surface-2); }
.scoring-table td, .waves-table td { color: var(--text-2); }
.scoring-table tr:last-child td, .waves-table tr:last-child td { border-bottom: 0; }
.scoring-table tbody tr:hover td, .waves-table tbody tr:hover td { background: var(--accent-soft); }
.milestone-number, .wave-number { color: var(--accent) !important; font-family: var(--mono); font-weight: 600; }

.tech-grid, .tech-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.tech-grid .tag { padding: 8px 16px; font-size: .85rem; transition: transform .2s var(--ease), border-color .2s, color .2s; }
.tech-grid .tag:hover { transform: translateY(-3px) rotate(-2deg); border-color: var(--accent); color: var(--accent); }

.stage-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; transition: transform .3s var(--ease), border-color .3s; }
.stage-card:hover { transform: translateY(-5px); border-color: var(--accent-line); }
.stage-card__image { width: 100%; height: 84px; object-fit: cover; image-rendering: pixelated; border-bottom: 1px solid var(--line); }
.stage-card__body { padding: 20px; }
.stage-card__floors { font-family: var(--pixel); font-size: .85rem; color: var(--accent); margin-bottom: 6px; }
.stage-card__title { font-size: 1.1rem; margin-bottom: 4px; }
.stage-card__description { font-size: .9rem; color: var(--muted); }

/* -------------------------
   CTA + contact
   ------------------------- */
.cta-section, .contact-section { text-align: center; }
.cta-section__title, .contact-section__title { font-size: clamp(2rem, 4.5vw, 3.2rem); letter-spacing: -.035em; margin-bottom: 14px; }
.cta-section__description, .contact-section__description { font-size: 1.1rem; max-width: 520px; margin: 0 auto 32px; }

/* -------------------------
   Footer
   ------------------------- */
.footer { padding: 36px 0; border-top: 1px solid var(--line); }
.footer__content { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer__copyright { font-size: .85rem; color: var(--muted); }
.footer__links { display: flex; gap: 20px; }
.footer__link { font-size: .85rem; color: var(--muted); }
.footer__link:hover { color: var(--accent); }
.footer__joke { font-family: var(--mono); font-size: .75rem; color: var(--muted); }

/* -------------------------
   Privacy pages
   ------------------------- */
.privacy-page { padding: 120px 0 80px; }
.privacy-page .container { max-width: 760px; }
.privacy-header { margin-bottom: 48px; padding-bottom: 28px; border-bottom: 1px dashed var(--line-2); }
.privacy-header__back { display: inline-flex; gap: 8px; margin-bottom: 22px; font-size: .9rem; color: var(--muted); font-family: var(--mono); }
.privacy-header__back:hover { color: var(--accent); }
.privacy-header__title { font-size: clamp(2.2rem, 5vw, 3.2rem); letter-spacing: -.035em; margin-bottom: 10px; }
.privacy-header__subtitle { color: var(--muted); }
.privacy-section { margin-bottom: 36px; }
.privacy-section__title { font-size: 1.25rem; margin-bottom: 12px; }
.privacy-section p { margin-bottom: 10px; }
.privacy-section__list li { position: relative; padding: 6px 0 6px 26px; color: var(--text-2); }
.privacy-section__list li::before { content: '✦'; position: absolute; left: 0; color: var(--accent); font-size: .8rem; top: 9px; }
.privacy-highlight { margin-top: 12px; padding: 18px 22px; background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: 4px var(--radius) var(--radius) 4px; }
.privacy-contact { margin-top: 12px; padding: 26px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); text-align: center; }
.privacy-contact p { margin-bottom: 14px; }
.privacy-footer { margin-top: 56px; padding-top: 22px; border-top: 1px solid var(--line); font-family: var(--mono); font-size: .8rem; color: var(--muted); }

/* -------------------------
   Reveal on scroll (JS adds .js to <html>)
   ------------------------- */
.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); transition-delay: var(--d, 0ms); }
.js .reveal.in { opacity: 1; transform: none; }

/* -------------------------
   Responsive
   ------------------------- */
@media (max-width: 900px) {
    .hero__content { grid-template-columns: 1fr; gap: 40px; text-align: center; }
    .hero__description, .hero__subtitle { margin-left: auto; margin-right: auto; }
    .hero__cta, .hero-cta { justify-content: center; }
    .hero__visual { order: -1; }
    .hero { padding-top: 110px; min-height: 0; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .section { padding: 72px 0; }
    .nav__toggle { display: flex; }
    .nav__content { position: relative; }
    .nav__links {
        position: absolute; top: calc(100% + 10px); left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 2px; padding: 10px;
        background: color-mix(in srgb, var(--bg) 94%, transparent); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
        border: 1px solid var(--line-2); border-radius: var(--radius-lg);
        opacity: 0; transform: translateY(-8px) scale(.98); pointer-events: none; transition: opacity .2s, transform .2s var(--ease);
    }
    .nav.is-open .nav__links { opacity: 1; transform: none; pointer-events: auto; }
    .nav__link { padding: 12px 16px; }
    .nav__cta { margin: 6px 0 0; }
    .footer__content { flex-direction: column; text-align: center; }
    .privacy-page { padding-top: 100px; }
}
@media (max-width: 480px) {
    .hero__cta .btn, .hero-cta .btn { width: 100%; }
    .step { gap: 16px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
    .js .reveal { opacity: 1; transform: none; }
}