/* Yotech design-system tokens and base component classes. This file is the single source of
   truth for the brand look: colors and gradients are sampled from the logo
   (public/assets/yotech-logo.png) — retune them here, never per page. */
/* Archivo as a variable font (400–800) so every weight the site uses (400/500/600/700) is real,
   not synthesized. The family ships latin, latin-ext and vietnamese subsets. */
@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@400..800&display=swap');

:root {
  /* ── Brand: logo gradient stops (top of each glyph → bottom) ── */
  --brand-pink: #eb116a;      /* top stop; 4.36:1 on white → large text and fills only */
  --brand-magenta: #c21c7f;   /* mid stop; 5.58:1 on white */
  --brand-purple: #7d3b97;    /* bottom stop; 7.13:1 on white */
  --brand-tagline: #bd1e80;   /* solid colour of the "Your innovation - Our future" line */

  /* The logo runs pink → purple at ~162deg (pink on top, slightly left). */
  --grad-brand: linear-gradient(162deg, var(--brand-pink) 0%, var(--brand-magenta) 52%, var(--brand-purple) 100%);
  /* Same stops along a wide horizontal span (text runs, progress bars). */
  --grad-brand-x: linear-gradient(90deg, var(--brand-pink), var(--brand-magenta) 52%, var(--brand-purple));
  /* Light wash for tinted panels; dark field for night panels (footer, globe, proof). */
  --grad-wash: linear-gradient(162deg, #fdf0f5 0%, #f7eef8 100%);
  --grad-night: radial-gradient(120% 90% at 75% 15%, #3a1749 0%, #1e1226 58%, #140b19 100%);

  --color-bg: #ffffff;
  --color-surface: #f7f2f6;
  --color-text: #1f1a22;
  --color-night: #1e1226;
  --color-accent: var(--brand-pink);
  --color-accent-2: var(--brand-purple);
  --color-divider: color-mix(in srgb, var(--color-text) 14%, transparent);

  /* Pink ramp anchored on the logo stops (500 pink, 600 magenta, 800 purple). Text-safe on
     white and on --color-accent-100: 600 and darker. */
  --color-accent-100: #fdeef4;
  --color-accent-200: #fad5e4;
  --color-accent-300: #f4a9c8;
  --color-accent-400: #ef5f98;
  --color-accent-500: var(--brand-pink);
  --color-accent-600: var(--brand-magenta);
  --color-accent-700: #a12a83;
  --color-accent-800: var(--brand-purple);
  --color-accent-900: #4a1f5c;

  /* Purple ramp (logo bottom stop). */
  --color-accent-2-100: #f4edf8;
  --color-accent-2-200: #e6d6ef;
  --color-accent-2-300: #cfb0e0;
  --color-accent-2-400: #b07fd0;
  --color-accent-2-500: var(--brand-purple);
  --color-accent-2-600: #66307c;
  --color-accent-2-700: #512762;
  --color-accent-2-800: #3c1d49;
  --color-accent-2-900: #281331;

  /* Plum-tinted neutrals so greys sit with the brand instead of against it. */
  --color-neutral-100: #f8f5f8;
  --color-neutral-200: #ece6ec;
  --color-neutral-300: #dcd4dd;
  --color-neutral-400: #bbb2bd;
  --color-neutral-500: #9a909c;
  --color-neutral-600: #7b717e;
  --color-neutral-700: #5e5561;
  --color-neutral-800: #433b46;
  --color-neutral-900: #2c262e;

  --font-heading: "Archivo", system-ui, sans-serif;
  --font-heading-weight: 600;
  --font-body: "Archivo", system-ui, sans-serif;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --section-gap: clamp(80px, 10vw, 136px);

  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-xl: clamp(24px, 3vw, 40px);
  --radius-pill: 999px;

  /* Elevation: plum-tinted, soft, never grey. */
  --shadow-sm: 0 1px 2px rgb(60 20 70 / .08), 0 2px 8px -2px rgb(60 20 70 / .08);
  --shadow-md: 0 14px 32px -18px rgb(60 20 70 / .28);
  --shadow-lg: 0 28px 60px -28px rgb(60 20 70 / .38);
  --shadow-brand: 0 14px 30px -14px rgb(194 28 127 / .55);
  --ring: 0 0 0 4px rgb(235 17 106 / .16);

  /* Motion */
  --ease-out: cubic-bezier(.22, 1, .36, 1);
  --ease-in-out: cubic-bezier(.65, 0, .35, 1);
  --dur-1: .18s;
  --dur-2: .32s;
  --dur-3: .7s;

  --nav-h: 64px;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
}

.grayscale{filter:grayscale(1) contrast(1.08)}

/* ══════════════════════════════════════════════════════════════════════════
   Components — built with the tokens above. Plain CSS
   on plain HTML: no JavaScript, no build step. Each class is documented in
   readme.md and demonstrated in foundations/ and components/.
   ══════════════════════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; font-size: 16px; line-height: 1.6; font-weight: 400; }
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  line-height: 1.12; letter-spacing: -0.015em; margin: 0 0 var(--space-2);
}
h1 { font-size: 42px; }
h2 { font-size: 32px; }
h3 { font-size: 25px; }
h4 { font-size: 20px; }
h5 { font-size: 16px; }
h6 { font-size: 13px; }
h6 { letter-spacing: 0.08em; text-transform: uppercase; }
p { margin: 0 0 var(--space-3); }
a { color: var(--color-accent-700); text-underline-offset: 3px; }
img { display: block; max-width: 100%; }
figure { margin: 0; }
figcaption {
  font-size: 11px; margin-top: var(--space-1);
  color: color-mix(in srgb, var(--color-text) 55%, transparent);
}
.text-muted { color: color-mix(in srgb, var(--color-text) 55%, transparent); }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--color-accent-600); outline-offset: 3px; }
::selection { background: color-mix(in srgb, var(--color-accent) 30%, transparent); }

/* — rules — */
.hr {
  height: 2px; border: 0; margin: var(--space-4) 0;
  background: var(--color-divider);
}

/* — buttons —
   48px tall (touch target). Primary uses the logo gradient; its label sits on the magenta→purple
   half (≥5:1 for white text). A light sheen sweeps across on hover; the arrow glyph nudges. */
.btn {
  position: relative; isolation: isolate; overflow: hidden;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 24px;
  cursor: pointer; text-decoration: none; white-space: nowrap;
  font-family: var(--font-heading); font-weight: 600; font-size: 15px; line-height: 1.2; letter-spacing: -0.005em;
  color: var(--color-text); background: transparent;
  border: 1.5px solid transparent; border-radius: var(--radius-pill);
  transition: transform var(--dur-2) var(--ease-out), box-shadow var(--dur-2) var(--ease-out),
    background-color var(--dur-1), border-color var(--dur-1), color var(--dur-1);
}
.btn svg { display: block; }
.btn:active { transform: translateY(0) scale(.98); }
.btn:disabled { opacity: .5; cursor: progress; transform: none; box-shadow: none; }
.btn-primary {
  color: #fff;
  background: var(--brand-magenta) var(--grad-brand);
  box-shadow: 0 1px 0 rgb(255 255 255 / .18) inset, 0 8px 18px -12px rgb(194 28 127 / .7);
}
.btn-primary::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(105deg, transparent 30%, rgb(255 255 255 / .28) 50%, transparent 70%);
  transform: translateX(-120%);
}
.btn-primary:hover { color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-brand); }
.btn-primary:hover::after { transform: translateX(120%); transition: transform .7s var(--ease-out); }
.btn-secondary { border-color: color-mix(in srgb, var(--color-text) 18%, transparent); background: #fff; }
.btn-secondary:hover { color: var(--color-text); border-color: var(--color-text); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.btn-ghost { color: var(--color-accent-700); padding-inline: var(--space-3); }
.btn-ghost:hover { background: var(--color-accent-100); }
.btn-icon { width: 44px; min-height: 44px; padding: 0; }
.btn-block { width: 100%; margin-top: var(--space-2); }

/* — forms — */
.field > label {
  display: block; font-size: 12px; margin-bottom: 5px;
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
}
.input {
  width: 100%; min-height: 48px; padding: 10px 16px; font: inherit;
  font-size: 16px; color: var(--color-text); caret-color: var(--brand-pink);
  background: #fff;
  border: 1.5px solid var(--color-neutral-300); border-radius: var(--radius-sm);
  transition: border-color var(--dur-1), box-shadow var(--dur-2) var(--ease-out);
}
.input::placeholder { color: var(--color-neutral-500); }
.input:hover { border-color: var(--color-neutral-400); }
.input:focus, .input:focus-visible { outline: none; border-color: var(--brand-magenta); box-shadow: var(--ring); }
textarea.input { min-height: 90px; resize: vertical; }
.radio { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: 14px; }
.radio input, .seg-opt input {
  position: absolute; opacity: 0; width: 0; height: 0; pointer-events: none;
}
.radio .dot {
  width: 16px; height: 16px; flex: none; border-radius: 50%;
  border: 1.5px solid var(--color-divider);
}
.radio:hover .dot { border-color: var(--color-accent); }
.radio input:checked + .dot {
  border-color: var(--color-accent); background: var(--color-accent);
  box-shadow: inset 0 0 0 4px var(--color-bg);
}
.radio input:focus-visible + .dot { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.seg {
  display: inline-flex; overflow: hidden;
  border: 1px solid var(--color-divider); border-radius: var(--radius-md);
}
.seg-opt {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 12px; font-size: 13px; cursor: pointer;
}
.seg-opt + .seg-opt { border-left: 1px solid var(--color-divider); }
.seg-opt:has(input:checked) { background: var(--color-accent); color: var(--color-bg); }
.seg-opt:not(:has(input:checked)):hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); }
.seg-opt:has(input:focus-visible) { outline: 2px solid var(--color-accent); outline-offset: -2px; }

/* — cards — */
.card {
  display: flex; flex-direction: column; gap: var(--space-2);
  padding: var(--space-3); border-radius: var(--radius-md); background: var(--color-surface);
}
.card-kicker { font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-accent); }
.card-title {
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 17px; line-height: 1.2;
}
.card-body { margin: 0; font-size: 13px; opacity: 0.8; flex: 1; }
.card-meta {
  display: flex; align-items: center; gap: 6px; font-size: 11px;
  color: color-mix(in srgb, var(--color-text) 50%, transparent);
}
.elev-sm { box-shadow: var(--shadow-sm); }
.elev-md { box-shadow: var(--shadow-md); }
.elev-lg { box-shadow: var(--shadow-lg); }

/* — tags — */
.tag {
  display: inline-flex; align-items: center; font-size: 11px;
  letter-spacing: 0.02em; padding: 3px 10px;
  border-radius: calc(var(--radius-md) * 0.75);
}
.tag-accent { background: var(--color-accent-100); color: var(--color-accent-800); }
.tag-accent-2 { background: var(--color-accent-2-100); color: var(--color-accent-2-800); }
.tag-neutral { background: var(--color-neutral-100); color: var(--color-neutral-800); }
.tag-outline { border: 1px solid var(--color-accent); color: var(--color-accent); }

/* — navigation — */
.nav {
  display: flex; align-items: center; gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-bottom: 2px solid var(--color-divider);
}
.nav-brand {
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 18px; margin-right: auto;
}
.nav a { color: inherit; text-decoration: none; font-size: 14px; }
.nav a:hover, .nav a[aria-current='page'] { color: var(--color-accent); }

/* — tables — */
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th {
  text-align: left; font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  color: color-mix(in srgb, var(--color-text) 60%, transparent);
  padding: var(--space-2); border-bottom: 2px solid var(--color-divider);
}
.table td {
  padding: var(--space-2);
  border-bottom: 1px solid var(--color-divider);
}
.table tbody tr:hover { background: color-mix(in srgb, var(--color-text) 4%, transparent); }

/* — dialog — */
.dialog-backdrop {
  position: fixed; inset: 0; display: grid; place-items: center;
  padding: var(--space-4);
  background: color-mix(in srgb, var(--color-neutral-900) 50%, transparent);
}
.dialog {
  width: min(440px, 100%); display: flex; flex-direction: column; gap: var(--space-3);
  padding: var(--space-4); border-radius: var(--radius-lg);
  background: var(--color-surface); box-shadow: var(--shadow-lg);
}
.dialog-title {
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 20px;
}
.dialog-body { font-size: 14px; opacity: 0.85; }
.dialog-actions { display: flex; justify-content: flex-end; gap: var(--space-2); margin-top: var(--space-2); }