/* Shared UI kit styles — extends colors_and_type.css with prototype chrome */

html, body { margin: 0; padding: 0; background: var(--paper); }
body { font-family: var(--font-body); color: var(--fg); -webkit-font-smoothing: antialiased; }

/* --- shared utility-ish classes used across components --- */

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
  box-sizing: border-box;
}

.eyebrow {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--fg-3);
}

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-body); font-weight: 500;
  font-size: 14px; line-height: 1;
  padding: 12px 18px;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 220ms var(--ease-out);
  text-decoration: none;
}
.btn.primary { background: var(--ink-900); color: var(--paper); }
.btn.primary:hover { background: var(--glacz-700); transform: translateY(-1px); }
.btn.secondary { background: var(--white); color: var(--ink-900); border-color: var(--ink-900); }
.btn.secondary:hover { background: var(--ink-900); color: var(--paper); }
.btn.ghost { background: transparent; color: var(--ink-900); }
.btn.ghost:hover { background: var(--slate-100); }
.btn.lg { padding: 16px 22px; font-size: 15px; }
.btn .arrow { transition: transform 280ms var(--ease-out); display: inline-block; }
.btn:hover .arrow { transform: translateX(4px); }
.btn.invert.primary { background: var(--paper); color: var(--ink-900); }
.btn.invert.primary:hover { background: var(--glacz-700); color: var(--paper); }
.btn.invert.secondary { background: transparent; color: var(--paper); border-color: var(--paper); }
.btn.invert.secondary:hover { background: var(--paper); color: var(--ink-900); }

/* --- scroll-reveal helper --- */
/* Reveal: visible by default (SSR / no-JS / above-the-fold = no pop).
   JS marks below-the-fold elements `.pre` after hydration so they animate in. */
.reveal { opacity: 1; transform: none; }
.reveal.pre { opacity: 0; transform: translateY(24px); }
.reveal.pre.in { opacity: 1; transform: none; transition: opacity 720ms var(--ease-out), transform 720ms var(--ease-out); }

/* --- glacz-style hairline divider --- */
.hairline { height: 1px; background: var(--border); width: 100%; }

/* --- subtle image placeholder: viridian-tinted light-falloff plate --- */
.plate {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #DCE0E4 0%, #E2F4EC 50%, #F1F3F5 100%);
}
.plate::after {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(120% 80% at 70% 30%, rgba(255,255,255,0.65), transparent 55%),
    linear-gradient(120deg, transparent 40%, rgba(26,107,82,0.06) 50%, transparent 60%);
  pointer-events: none;
}
.plate.warm  { background: linear-gradient(135deg, #E8EBEE 0%, #F6F5F2 100%); }
.plate.dark  { background: linear-gradient(140deg, #0B0F14 0%, #232932 60%, #3A424C 100%); }
.plate.dark::after {
  background:
    radial-gradient(120% 80% at 80% 20%, rgba(200,234,216,0.18), transparent 50%),
    radial-gradient(80% 60% at 20% 90%, rgba(26,107,82,0.22), transparent 60%);
}
.plate.ice  { background: linear-gradient(135deg, #C8EAD8 0%, #E2F4EC 60%, #F6F5F2 100%); }

/* --- a subtle floating label inside a plate --- */
.plate-label {
  position: absolute; bottom: 14px; left: 14px;
  font-family: var(--font-mono); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--fg-2);
  background: rgba(246,245,242,0.85);
  backdrop-filter: blur(8px);
  padding: 6px 10px;
  border-radius: 4px;
}
.plate.dark .plate-label { background: rgba(11,15,20,0.55); color: var(--paper); }

/* --- chip --- */
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.12em;
  padding: 5px 9px; border-radius: 3px;
}
.chip.ice { background: var(--ice); color: var(--glacz-900); }
.chip.dark { background: var(--ink-900); color: var(--paper); }
.chip.outline { background: transparent; border: 1px solid var(--border); color: var(--fg-2); }

/* --- field --- */
.field { display: flex; flex-direction: column; gap: 6px; }
.field-label { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.14em; color: var(--fg-3); }
.field-input {
  font-family: var(--font-body); font-size: 15px;
  padding: 13px 14px; background: var(--white);
  border: 1px solid var(--border); border-radius: 6px;
  color: var(--ink-900); outline: none;
  transition: border-color 200ms var(--ease-out), box-shadow 200ms var(--ease-out);
  width: 100%; box-sizing: border-box;
}
.field-input:focus { border-color: var(--ink-900); box-shadow: 0 0 0 3px rgba(11,15,20,0.08); }
.field-textarea { min-height: 110px; resize: vertical; font-family: var(--font-body); }