/* Local utility stylesheet for the gaokao countdown site.
   This intentionally mirrors the small subset of Tailwind-like utilities
   used by the PHP template, so the UI works fully offline. */

:root {
  --sky-50: #f0f9ff;
  --sky-100: #e0f2fe;
  --sky-300: #7dd3fc;
  --sky-400: #38bdf8;
  --sky-500: #0ea5e9;
  --sky-600: #0284c7;
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  --emerald-50: #ecfdf5;
  --emerald-600: #059669;
  --amber-50: #fffbeb;
  --amber-600: #d97706;
  --rose-50: #fff1f2;
  --rose-200: #fecdd3;
  --rose-500: #f43f5e;
  --rose-600: #e11d48;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--slate-50);
  color: var(--slate-800);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

img {
  max-width: 100%;
  display: block;
}

/* layout */
.absolute { position: absolute; }
.relative { position: relative; }
.block { display: block; }
.inline { display: inline; }
.inline-flex { display: inline-flex; }
.flex { display: flex; }
.grid { display: grid; }
.hidden { display: none; }
.min-h-screen { min-height: 100vh; }
.mx-auto { margin-left: auto; margin-right: auto; }
.inset-x-0 { left: 0; right: 0; }
.top-0 { top: 0; }
.-z-10 { z-index: -10; }
.z-10 { z-index: 10; }
.overflow-x-auto { overflow-x: auto; }
.min-w-full { min-width: 100%; }
.min-w-0 { min-width: 0; }
.w-full { width: 100%; }
.w-32 { width: 8rem; }
.h-full { height: 100%; }
.h-12 { height: 3rem; }
.h-24 { height: 6rem; }
.h-96 { height: 24rem; }
.max-w-7xl { max-width: 80rem; }
.max-w-xl { max-width: 36rem; }
.max-w-md { max-width: 28rem; }
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.text-center { text-align: center; }
.align-top { vertical-align: top; }
.object-cover { object-fit: cover; }
.cursor-pointer { cursor: pointer; }
.pointer-events-none { pointer-events: none; }
.overflow-hidden { overflow: hidden; }

/* spacing */
.p-3 { padding: .75rem; }
.p-4 { padding: 1rem; }
.p-5 { padding: 1.25rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.p-10 { padding: 2.5rem; }
.px-2 { padding-left: .5rem; padding-right: .5rem; }
.px-3 { padding-left: .75rem; padding-right: .75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-5 { padding-left: 1.25rem; padding-right: 1.25rem; }
.py-0\.5 { padding-top: .125rem; padding-bottom: .125rem; }
.py-1 { padding-top: .25rem; padding-bottom: .25rem; }
.py-2 { padding-top: .5rem; padding-bottom: .5rem; }
.py-2\.5 { padding-top: .625rem; padding-bottom: .625rem; }
.py-3 { padding-top: .75rem; padding-bottom: .75rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.pl-4 { padding-left: 1rem; }
.pr-4 { padding-right: 1rem; }
.pt-0 { padding-top: 0; }
.pt-4 { padding-top: 1rem; }
.mt-1 { margin-top: .25rem; }
.mt-2 { margin-top: .5rem; }
.mt-3 { margin-top: .75rem; }
.mt-4 { margin-top: 1rem; }
.mt-5 { margin-top: 1.25rem; }
.mt-6 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: .5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.ml-2 { margin-left: .5rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }

/* flex/grid gaps */
.gap-2 { gap: .5rem; }
.gap-3 { gap: .75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

/* typography */
.text-xs { font-size: .75rem; line-height: 1rem; }
.text-sm { font-size: .875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-black { font-weight: 900; }
.uppercase { text-transform: uppercase; }
.leading-7 { line-height: 1.75rem; }
.tracking-tight { letter-spacing: -.025em; }
[class~="tracking-[0.25em]"] { letter-spacing: .25em; }
[class~="tracking-[0.32em]"] { letter-spacing: .32em; }

/* colors */
.text-white { color: #fff; }
.text-transparent { color: transparent; }
.text-slate-400 { color: var(--slate-400); }
.text-slate-500 { color: var(--slate-500); }
.text-slate-600 { color: var(--slate-600); }
.text-slate-700 { color: var(--slate-700); }
.text-slate-800 { color: var(--slate-800); }
.text-slate-900 { color: var(--slate-900); }
.text-sky-500 { color: var(--sky-500); }
.text-sky-600 { color: var(--sky-600); }
.text-sky-700 { color: #0369a1; }
.text-emerald-600 { color: var(--emerald-600); }
.text-amber-600 { color: var(--amber-600); }
.text-rose-500 { color: var(--rose-500); }
.text-rose-600 { color: var(--rose-600); }
.text-rose-700 { color: #be123c; }

.bg-white { background: #fff; }
[class~="bg-white/85"] { background: rgba(255, 255, 255, .85); }
.bg-slate-50 { background: var(--slate-50); }
[class~="bg-slate-50/60"] { background: rgba(248, 250, 252, .6); }
.bg-slate-100 { background: var(--slate-100); }
.bg-sky-50 { background: var(--sky-50); }
.bg-sky-500 { background: var(--sky-500); }
.bg-sky-600 { background: var(--sky-600); }
.bg-emerald-50 { background: var(--emerald-50); }
.bg-amber-50 { background: var(--amber-50); }
.bg-rose-50 { background: var(--rose-50); }

.border { border: 1px solid var(--slate-200); }
.border-dashed { border-style: dashed; }
.border-separate { border-collapse: separate; border-spacing: .5rem; }
.border-slate-100 { border-color: var(--slate-100); }
.border-slate-200 { border-color: var(--slate-200); }
.border-sky-100 { border-color: var(--sky-100); }
.border-sky-400 { border-color: var(--sky-400); }
.border-sky-500 { border-color: var(--sky-500); }
.border-rose-200 { border-color: var(--rose-200); }

/* components / shapes */
.rounded-full { border-radius: 9999px; }
.rounded-2xl { border-radius: 1rem; }
.rounded-3xl { border-radius: 1.5rem; }
[class~="rounded-[2rem]"] { border-radius: 2rem; }

.shadow-sm { box-shadow: 0 1px 2px rgba(15, 23, 42, .08); }
.shadow-soft { box-shadow: 0 18px 60px rgba(14, 116, 144, .08); }
.shadow-deep { box-shadow: 0 18px 60px rgba(15, 23, 42, .08); }
[class~="shadow-[0_18px_60px_rgba(14,116,144,0.08)]"] { box-shadow: 0 18px 60px rgba(14, 116, 144, .08); }
[class~="shadow-[0_18px_60px_rgba(15,23,42,0.08)]"] { box-shadow: 0 18px 60px rgba(15, 23, 42, .08); }

.backdrop-blur { backdrop-filter: blur(14px); }
.transition { transition: all .2s ease; }
.opacity-40 { opacity: .4; }
.ring-0 { box-shadow: none; }
.outline-none { outline: none; }
.whitespace-pre-wrap { white-space: pre-wrap; }

/* custom gradient shells */
[class~="bg-[linear-gradient(180deg,#f8fcff_0%,#eef8ff_28%,#f7fbff_100%)]"] {
  background: linear-gradient(180deg, #f8fcff 0%, #eef8ff 28%, #f7fbff 100%);
}

[class~="bg-[radial-gradient(circle_at_top,rgba(125,211,252,0.35),transparent_60%)]"] {
  background: radial-gradient(circle at top, rgba(125, 211, 252, .35), transparent 60%);
}

/* interactive states */
.hover\:bg-sky-600:hover { background: var(--sky-600); }
.hover\:border-sky-300:hover { border-color: var(--sky-300); }
.hover\:text-sky-600:hover { color: var(--sky-600); }
.hover\:border-slate-200:hover { border-color: var(--slate-200); }
.hover\:text-rose-500:hover { color: var(--rose-500); }

.focus\:border-sky-400:focus { border-color: var(--sky-400); }

/* custom layout helpers */
.site-bg { background: linear-gradient(180deg, #f8fcff 0%, #eef8ff 28%, #f7fbff 100%); }
.site-glow { background: radial-gradient(circle at top, rgba(125, 211, 252, .35), transparent 60%); }
.card-xl { border-radius: 2rem; }
.min-h-8 { min-height: 2rem; }
.grid-hero { grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); }
.grid-admin { grid-template-columns: minmax(0, 1.4fr) minmax(0, .6fr); }

/* responsive utilities */
@media (min-width: 640px) {
  .sm\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 768px) {
  .md\:flex-row { flex-direction: row; }
  .md\:items-center { align-items: center; }
  .md\:justify-between { justify-content: space-between; }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:p-5 { padding: 1.25rem; }
  .md\:p-6 { padding: 1.5rem; }
  .md\:py-10 { padding-top: 2.5rem; padding-bottom: 2.5rem; }
  .md\:text-base { font-size: 1rem; line-height: 1.5rem; }
  .md\:text-right { text-align: right; }
  .md\:text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
  .md\:text-6xl { font-size: 3.75rem; line-height: 1; }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lg\:grid-hero { grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); }
  .lg\:grid-admin { grid-template-columns: minmax(0, 1.4fr) minmax(0, .6fr); }
  [class~="lg:grid-cols-[1.15fr_0.85fr]"] { grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); }
  [class~="lg:grid-cols-[1.4fr_0.6fr]"] { grid-template-columns: minmax(0, 1.4fr) minmax(0, .6fr); }
}

/* tables */
table {
  border-collapse: separate;
  border-spacing: .5rem;
}

th,
td {
  vertical-align: top;
}

/* buttons and form controls */
button,
.button {
  border: 0;
  border-radius: 1rem;
  cursor: pointer;
}

input,
textarea {
  border-radius: 1rem;
}

/* small utility fallbacks */
.min-w-full { min-width: 100%; }