/* Cerulean Cloud Consultings — shared design tokens + base styles.
   Imported by every product's HTML templates. Tailwind-friendly.
   Brand: PROMPT.md §8. */

:root {
  /* Brand */
  --cerulean: #007BA7;
  --sky: #7DD3FC;
  --navy: #0C2D48;

  /* Neutrals */
  --slate: #1E293B;
  --slate-2: #475569;
  --mist: #F1F5F9;
  --line: #E2E8F0;
  --white: #FFFFFF;

  /* Functional */
  --success: #16A34A;
  --warning: #D97706;
  --danger:  #DC2626;

  /* Type scale */
  --fs-h1: clamp(2rem, 4vw, 3rem);
  --fs-h2: clamp(1.5rem, 3vw, 2rem);
  --fs-h3: 1.25rem;
  --fs-body: 1rem;
  --fs-small: 0.875rem;

  /* Layout */
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-1: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .08);
  --shadow-2: 0 8px 24px rgba(15, 23, 42, .08);

  /* Motion */
  --ease: cubic-bezier(.4, 0, .2, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --slate: #E2E8F0;
    --slate-2: #94A3B8;
    --mist:  #0F172A;
    --line:  #1E293B;
    --white: #0B1220;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: var(--fs-body);
  line-height: 1.55;
  color: var(--slate);
  background: var(--mist);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { color: var(--navy); margin: 0 0 .5em; line-height: 1.2; letter-spacing: -.01em; }
h1 { font-size: var(--fs-h1); font-weight: 700; }
h2 { font-size: var(--fs-h2); font-weight: 700; }
h3 { font-size: var(--fs-h3); font-weight: 600; }

a { color: var(--cerulean); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible { outline: 2px solid var(--cerulean); outline-offset: 2px; border-radius: 2px; }

/* Layout */
.container { max-width: 1120px; margin-inline: auto; padding-inline: 24px; }
.container-narrow { max-width: 720px; margin-inline: auto; padding-inline: 24px; }

/* Header */
.cerulean-header {
  background: var(--white);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 50;
}
.cerulean-header .inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; max-width: 1120px; margin-inline: auto;
}
.cerulean-brand {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; color: var(--navy); letter-spacing: .02em;
}
.cerulean-brand svg { width: 28px; height: 28px; color: var(--cerulean); }
.cerulean-nav a { color: var(--slate); margin-left: 24px; font-weight: 500; }
.cerulean-nav a.active { color: var(--cerulean); }

/* Hero */
.hero {
  padding: 80px 24px 64px;
  background:
    radial-gradient(60% 50% at 80% 0%, rgba(125,211,252,.35) 0%, transparent 60%),
    radial-gradient(60% 50% at 0% 100%, rgba(0,123,167,.18) 0%, transparent 60%),
    linear-gradient(180deg, var(--white) 0%, var(--mist) 100%);
}
.hero h1 { max-width: 720px; }
.hero p.lead { color: var(--slate-2); font-size: 1.125rem; max-width: 640px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: var(--fs-body);
  border: 1px solid transparent; cursor: pointer;
  transition: transform .12s var(--ease), box-shadow .12s var(--ease), background .12s var(--ease);
}
.btn-primary {
  background: var(--cerulean); color: #fff; box-shadow: var(--shadow-1);
}
.btn-primary:hover { background: var(--navy); }
.btn-secondary {
  background: var(--white); color: var(--cerulean); border-color: var(--cerulean);
}
.btn-secondary:hover { background: var(--cerulean); color: #fff; }
.btn-ghost {
  background: transparent; color: var(--slate);
}
.btn-ghost:hover { background: var(--mist); }
.btn:focus-visible { outline: 2px solid var(--sky); outline-offset: 2px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* Cards */
.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-1);
}
.card-hover { transition: transform .15s var(--ease), box-shadow .15s var(--ease); }
.card-hover:hover { transform: translateY(-2px); box-shadow: var(--shadow-2); }

/* Forms */
.form-row { margin-bottom: 18px; }
.form-row label { display: block; font-weight: 600; margin-bottom: 6px; color: var(--slate); font-size: var(--fs-small); }
.form-row input[type="text"],
.form-row input[type="email"],
.form-row input[type="tel"],
.form-row input[type="url"],
.form-row input[type="password"],
.form-row input[type="date"],
.form-row input[type="number"],
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 10px 12px;
  font-size: var(--fs-body);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--slate);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: 2px solid var(--cerulean); outline-offset: 1px; border-color: var(--cerulean);
}
.form-row .help { color: var(--slate-2); font-size: var(--fs-small); margin-top: 6px; }
.form-row .error { color: var(--danger); font-size: var(--fs-small); margin-top: 6px; }

/* File input dropzone */
.dropzone {
  border: 2px dashed var(--line);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  color: var(--slate-2);
  background: var(--white);
}
.dropzone:hover, .dropzone.dragover { border-color: var(--cerulean); color: var(--cerulean); }

/* Badges */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 2px 10px; border-radius: 999px;
  font-size: var(--fs-small); font-weight: 600;
  background: var(--mist); color: var(--slate);
}
.badge-blue   { background: #DBEAFE; color: #1D4ED8; }
.badge-green  { background: #DCFCE7; color: #166534; }
.badge-amber  { background: #FEF3C7; color: #B45309; }
.badge-red    { background: #FEE2E2; color: #B91C1C; }
.badge-violet { background: #EDE9FE; color: #6D28D9; }

/* Tables */
.table { width: 100%; border-collapse: collapse; background: var(--white); border-radius: var(--radius); overflow: hidden; }
.table th, .table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--line); font-size: var(--fs-body); }
.table th { background: var(--mist); color: var(--slate); font-weight: 600; font-size: var(--fs-small); text-transform: uppercase; letter-spacing: .04em; }
.table tr:last-child td { border-bottom: none; }

/* Footer */
.cerulean-footer {
  background: var(--navy); color: #BFDBFE;
  padding: 40px 24px 24px; margin-top: 80px;
}
.cerulean-footer a { color: #BFDBFE; }
.cerulean-footer .inner { max-width: 1120px; margin-inline: auto; }
.cerulean-footer h4 { color: #fff; }

/* Utilities */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stack-8  > * + * { margin-top: 8px; }
.stack-16 > * + * { margin-top: 16px; }
.stack-24 > * + * { margin-top: 24px; }
.center-text { text-align: center; }
.muted { color: var(--slate-2); }
.hidden { display: none; }

/* Responsive */
@media (max-width: 768px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .cerulean-nav a { margin-left: 12px; font-size: var(--fs-small); }
  .hero { padding: 48px 20px; }
  .table th, .table td { padding: 10px 12px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}