/* GlobeScholars base styles: mobile-first, accessible, minimal motion. */
:root {
  --navy: #0b2545;
  --navy-700: #13315c;
  --teal: #0f8b8d;
  --teal-700: #0b6e70;
  --sand: #f6f4ef;
  --ink: #1b2430;
  --muted: #5b6675;
  --line: #dfe3e8;
  --white: #ffffff;
  --danger: #b3261e;
  --radius: 12px;
  --shadow: 0 6px 24px rgba(11, 37, 69, 0.08);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--sand);
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

h1, h2, h3 { line-height: 1.2; color: var(--navy); margin: 0 0 0.5em; }
h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h2 { font-size: 1.25rem; }

a { color: var(--teal-700); }
a:hover { color: var(--navy); }

:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; }

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--navy); color: var(--white); padding: 0.5rem 1rem; z-index: 100;
}
.skip-link:focus { left: 0; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding-inline: 1rem; }
.page { padding-block: 2rem; }

/* Header / footer */
.site-header { background: var(--white); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-block: 0.75rem; }
.brand { font-weight: 700; font-size: 1.15rem; color: var(--navy); text-decoration: none; }
.brand-mark { color: var(--teal); }
.nav { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.nav a:not(.btn) { color: var(--ink); text-decoration: none; padding: 0.5rem 0.25rem; }
.nav a:not(.btn):hover { color: var(--teal-700); text-decoration: underline; }

.site-footer { background: var(--navy); color: #cfd8e6; padding-block: 1.25rem; font-size: 0.9rem; }
.site-footer p { margin: 0; }

/* Hero */
.hero { background: linear-gradient(135deg, var(--navy), var(--navy-700)); color: var(--white); padding-block: clamp(3rem, 10vw, 6rem); }
.hero h1 { color: var(--white); max-width: 18ch; }
.hero .lead { font-size: 1.15rem; max-width: 52ch; color: #d6e2f2; }
.actions { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 1.5rem; }

/* Buttons */
.btn {
  display: inline-block; border: 2px solid transparent; border-radius: 999px;
  padding: 0.75rem 1.4rem; font: inherit; font-weight: 600; text-align: center;
  text-decoration: none; cursor: pointer; min-height: 44px;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.btn-sm { padding: 0.45rem 1rem; min-height: 38px; font-size: 0.92rem; }
.btn-primary { background: var(--teal); color: var(--white); }
.btn-primary:hover { background: var(--teal-700); color: var(--white); }
.btn-secondary { background: transparent; color: var(--navy); border-color: var(--navy); }
.hero .btn-secondary { color: var(--white); border-color: var(--white); }
.btn-secondary:hover { background: var(--navy); color: var(--white); }
.btn-block { width: 100%; }
.btn[disabled] { opacity: 0.6; cursor: not-allowed; }

/* Cards */
.card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 1.5rem; }
.muted { color: var(--muted); }
.center { text-align: center; }

/* Auth pages */
.auth-wrap { padding: 2rem 1rem 3rem; display: flex; justify-content: center; }
.auth-card { width: 100%; max-width: 440px; }

/* Forms */
.field { margin-bottom: 1rem; }
.field label { display: block; font-weight: 600; margin-bottom: 0.3rem; }
.field input[type="text"], .field input[type="email"], .field input[type="password"], .field input[type="tel"] {
  width: 100%; padding: 0.7rem 0.85rem; font: inherit; color: var(--ink);
  border: 1.5px solid #b8c0cc; border-radius: 8px; background: var(--white); min-height: 44px;
}
.field input[aria-invalid="true"] { border-color: var(--danger); }
.field.checkbox { display: flex; gap: 0.6rem; align-items: flex-start; }
.field.checkbox input { margin-top: 0.3rem; width: 1.1rem; height: 1.1rem; flex: none; }
.field.checkbox label { font-weight: 400; margin: 0; font-size: 0.92rem; }
.hint { margin: 0.3rem 0 0; font-size: 0.85rem; color: var(--muted); }
.field-error { margin: 0.3rem 0 0; font-size: 0.88rem; color: var(--danger); }
.field-error::before { content: "Error: "; font-weight: 600; } /* do not rely on color alone */
.form-error {
  margin-bottom: 1rem; padding: 0.75rem 1rem; border-radius: 8px;
  border: 1.5px solid var(--danger); color: var(--danger); background: #fdf1f0;
}

/* Dashboard */
.dash-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }

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