/* ============================================================================
   Klaro Design System  ·  © 2026 Eunkyoung Im / Hello Klaro
   Reconstructed from "hello Klaro Design System" — accessibility is the aesthetic:
   high contrast, generous type (18px floor), always-visible focus, calm motion.
   Brand: warm paper, navy ink, coral + amber. Font: Atkinson Hyperlegible.
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Atkinson+Hyperlegible:ital,wght@0,400;0,700;1,400;1,700&family=Inter:wght@400;500;600;700&display=swap');

/* ---- Tokens: LIGHT (default) --------------------------------------------- */
:root {
  --page: #FAF6EF;        /* warm paper page background */
  --bg: #FFFFFF;  --bg-deep: #E6DECB;
  --paper: #FFFFFF;  --surface: #FFFFFF;  --surface-2: #EFE7D5;
  --ink: #14213D;
  --text: #0A0F1C;  --text-muted: #1E2840;  --text-faint: #333D55;
  --line: #8E856E;  --line-strong: #14213D;  --ghost: #9C927A;
  --amber: #FAC775;  --amber-deep: #6B3F00;  --amber-ink: #3A2200;  --amber-text: #6B3F00;
  --coral: #FF6A14;  --coral-deep: #8A3000;  --coral-paper: #FFF0E6;  --coral-text: #9A3500;
  --coral-wash: rgba(255,106,20,0.16);
  --eyebrow: #6B3F00;  --focus: #FF6A14;  --on-coral: #2A1400;
  --shadow: 0 0 0 1px rgba(20,33,61,.05), 0 10px 26px rgba(20,33,61,.10);
  --shadow-lg: 0 0 0 1px rgba(20,33,61,.08), 0 22px 56px rgba(20,33,61,.20);

  /* type */
  --font: 'Atkinson Hyperlegible', system-ui, sans-serif;
  --font-mono: 'Inter', ui-monospace, SFMono-Regular, Menlo, monospace;
  --fs-eyebrow: .82rem; --fs-sm: 1rem; --fs-body: 1.125rem;  /* 18px floor */
  --fs-lead: 1.31rem; --fs-h3: 1.5rem; --fs-h2: 2.05rem; --fs-h1: 2.85rem; --fs-display: clamp(2.6rem, 6vw, 4.25rem);

  /* shape & space */
  --r-sm: 8px; --r: 12px; --r-md: 16px; --r-lg: 20px; --r-pill: 999px;
  --sp-1: 4px; --sp-2: 8px; --sp-3: 12px; --sp-4: 16px; --sp-5: 24px; --sp-6: 32px; --sp-7: 48px; --sp-8: 64px;
}

/* ---- Tokens: DARK -------------------------------------------------------- */
[data-theme="dark"] {
  --page: #000308;
  --bg: #000308;  --bg-deep: #000000;
  --paper: #0C1424;  --surface: #0C1424;  --surface-2: #18233A;
  --ink: #E4E9F4;
  --text: #FFFFFF;  --text-muted: #E4E9F4;  --text-faint: #C7CFE0;
  --line: #4C5A78;  --line-strong: #7486A9;  --ghost: #46526C;
  --amber-text: #FFD27A;
  --coral: #FF8A2E;  --coral-deep: #FFD0A8;  --coral-paper: #1F0C00;  --coral-text: #FFB877;
  --coral-wash: rgba(255,138,46,0.22);
  --eyebrow: #FFD27A;  --focus: #FF9A4A;
  --shadow: 0 0 0 1px rgba(255,255,255,.07), 0 12px 30px rgba(0,0,0,.55);
  --shadow-lg: 0 0 0 1px rgba(255,255,255,.12), 0 28px 62px rgba(0,0,0,.72);
}

/* ---- Base ---------------------------------------------------------------- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--page); color: var(--text);
  font-family: var(--font); font-size: var(--fs-body); line-height: 1.6;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
h1, h2, h3, h4 { font-family: var(--font); color: var(--text); line-height: 1.08; letter-spacing: -.01em; margin: 0 0 .5em; font-weight: 700; }
h1 { font-size: var(--fs-h1); } h2 { font-size: var(--fs-h2); } h3 { font-size: var(--fs-h3); }
p { margin: 0 0 1em; color: var(--text-muted); }
strong { color: var(--text); font-weight: 700; }
a { color: var(--coral-text); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
code, kbd, pre { font-family: var(--font-mono); }

/* Always-visible focus — a brand rule, not an afterthought */
:where(a, button, input, textarea, select, [tabindex]):focus-visible {
  outline: 3px solid var(--focus); outline-offset: 2px; border-radius: var(--r-sm);
}

/* ---- Layout -------------------------------------------------------------- */
.k-shell { max-width: 60rem; margin: 0 auto; padding: clamp(1.25rem, 4vw, 3rem); }
.k-display { font-size: var(--fs-display); line-height: 1.02; letter-spacing: -.02em; margin: 0 0 .4em; }
.k-lead { font-size: var(--fs-lead); color: var(--text-muted); max-width: 40ch; }

/* Eyebrow — amber, uppercase, letter-spaced, with a coral dot */
.k-eyebrow {
  display: inline-flex; align-items: center; gap: .55em;
  font-size: var(--fs-eyebrow); font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--eyebrow); margin: 0 0 1rem;
}
.k-eyebrow::before { content: ""; width: .55em; height: .55em; border-radius: 50%; background: var(--coral); flex: 0 0 auto; }

/* Coral highlight on a key word (the "out loud." mark) */
.k-mark {
  background: var(--coral); color: var(--on-coral); font-weight: 700;
  padding: .04em .3em; border-radius: var(--r-sm); box-decoration-break: clone; -webkit-box-decoration-break: clone;
}
.k-mark--soft { background: var(--coral-wash); color: var(--coral-text); }

/* ---- Brand wordmark ------------------------------------------------------ */
.k-brand { display: inline-flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--ink); }
.k-brand .k-logo { display: grid; grid-template-columns: repeat(3, 6px); grid-auto-rows: 6px; gap: 3px; }
.k-brand .k-logo i { background: var(--ghost); border-radius: 50%; }
.k-brand .k-logo i:nth-child(1), .k-brand .k-logo i:nth-child(4) { background: var(--ink); }
.k-brand .k-logo i:nth-child(7) { background: var(--coral); }
.k-brand .k-logo i:nth-child(8) { background: var(--amber); }
.k-brand .k-word { font-size: 1.25rem; font-weight: 400; letter-spacing: -.01em; }
.k-brand .k-word b { font-weight: 700; }

/* ---- Chips / pills ------------------------------------------------------- */
.k-chip {
  display: inline-flex; align-items: center; gap: .45em;
  padding: .5em .95em; border: 1.5px solid var(--line); border-radius: var(--r-pill);
  font-size: var(--fs-sm); font-weight: 700; color: var(--text); background: transparent;
}
.k-chip--solid { background: var(--coral-wash); border-color: transparent; color: var(--coral-text); }
.k-chips { display: flex; flex-wrap: wrap; gap: .6rem; }

/* Badge (small, filled) */
.k-badge { display: inline-flex; align-items: center; gap: .35em; padding: .2em .6em; border-radius: var(--r-pill);
  font-size: .82rem; font-weight: 700; background: var(--amber); color: var(--amber-ink); }

/* ---- Buttons & links ----------------------------------------------------- */
.k-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font-family: var(--font); font-size: var(--fs-sm); font-weight: 700; line-height: 1;
  padding: .85em 1.4em; border-radius: var(--r); border: 1.5px solid transparent;
  cursor: pointer; text-decoration: none; user-select: none;
}
.k-btn--primary { background: var(--coral); color: var(--on-coral); border-color: var(--coral); }
.k-btn--primary:hover { background: var(--coral-deep); border-color: var(--coral-deep); color: #fff; }
.k-btn--ghost { background: var(--surface); color: var(--text); border-color: var(--line-strong); }
.k-btn--ghost:hover { background: var(--surface-2); }
.k-btn--quiet { background: transparent; color: var(--coral-text); border-color: transparent; padding-inline: .4em; }
.k-btn[disabled] { opacity: .5; cursor: default; }
.k-link { color: var(--coral-text); font-weight: 700; text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 3px; }

/* ---- Cards & list rows --------------------------------------------------- */
.k-card {
  display: block; background: var(--surface); color: inherit; text-decoration: none;
  border: 1.5px solid var(--line); border-radius: var(--r-lg); padding: 1.5rem 1.6rem; box-shadow: var(--shadow);
}
a.k-card:hover, a.k-card:focus-visible { border-color: var(--coral); box-shadow: var(--shadow-lg); }
.k-card h2, .k-card h3 { margin: 0 0 .4rem; }
.k-card p { margin: 0; color: var(--text-faint); font-size: var(--fs-sm); }
.k-row { display: flex; align-items: center; gap: 1rem; padding: 1rem 1.1rem; border: 1.5px solid var(--line); border-radius: var(--r-md); background: var(--surface); }

/* ---- Inputs & forms ------------------------------------------------------ */
.k-field { display: block; margin: 0 0 1rem; }
.k-field > span { display: block; font-weight: 700; font-size: var(--fs-sm); color: var(--text); margin: 0 0 .35rem; }
.k-input, .k-textarea, .k-select {
  width: 100%; font: inherit; font-size: var(--fs-sm); color: var(--text); background: var(--bg);
  border: 1.5px solid var(--line); border-radius: var(--r); padding: .7em .9em;
}
.k-input:focus, .k-textarea:focus, .k-select:focus { border-color: var(--coral); outline: 3px solid var(--focus); outline-offset: 1px; }
.k-textarea { min-height: 6em; resize: vertical; }

/* ---- Tabs ---------------------------------------------------------------- */
.k-tabs { display: inline-flex; gap: .25rem; padding: .25rem; background: var(--surface-2); border-radius: var(--r-pill); }
.k-tab { border: none; background: transparent; font: inherit; font-weight: 700; font-size: var(--fs-sm);
  color: var(--text-muted); padding: .5em 1em; border-radius: var(--r-pill); cursor: pointer; }
.k-tab[aria-selected="true"], .k-tab.is-active { background: var(--surface); color: var(--text); box-shadow: var(--shadow); }

/* ---- Theme toggle -------------------------------------------------------- */
.k-themetoggle {
  display: inline-flex; align-items: center; gap: .5em; font: inherit; font-weight: 700; font-size: var(--fs-sm);
  padding: .55em 1em; border-radius: var(--r-pill); border: 1.5px solid var(--line);
  background: var(--surface-2); color: var(--text); cursor: pointer;
}

/* ---- Motion: calm by default, off when the user prefers reduced ---------- */
@media (prefers-reduced-motion: no-preference) {
  .k-card, .k-btn, .k-chip, .k-themetoggle, a { transition: background .18s ease, border-color .18s ease, box-shadow .18s ease, color .18s ease; }
}