/* Grade-It — 2026 elegant homepage styles (no framework, pure CSS) */

:root {
  --gi-ink: #0b1020;
  --gi-ink-soft: #2b3144;
  --gi-muted: #5a6478;
  --gi-line: #e4e7ee;
  --gi-line-strong: #d3d9e3;
  --gi-bg: #f7f8fb;
  --gi-card: #ffffff;
  --gi-accent: #4f46e5;
  --gi-accent-2: #06b6d4;
  --gi-accent-soft: #eef0ff;
  --gi-success: #16a34a;
  --gi-warning: #d97706;
  --gi-radius: 14px;
  --gi-radius-lg: 22px;
  --gi-shadow-sm: 0 1px 2px rgba(11, 16, 32, 0.05);
  --gi-shadow: 0 10px 30px -12px rgba(11, 16, 32, 0.18);
  --gi-shadow-lg: 0 25px 60px -25px rgba(11, 16, 32, 0.28);
  --gi-font: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

.gi-home {
  font-family: var(--gi-font);
  color: var(--gi-ink);
  background: var(--gi-bg);
  padding: 0;
  margin: 0;
}

.gi-home * {
  box-sizing: border-box;
}

.gi-container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Hero ---------- */
.gi-hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 80px;
  background:
    radial-gradient(1200px 600px at 90% -10%, rgba(79, 70, 229, 0.18), transparent 60%),
    radial-gradient(900px 500px at -10% 10%, rgba(6, 182, 212, 0.15), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, var(--gi-bg) 100%);
  border-bottom: 1px solid var(--gi-line);
}

.gi-hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

.gi-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--gi-accent-soft);
  color: var(--gi-accent);
  border: 1px solid #dfe1ff;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.gi-eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--gi-accent);
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.18);
}

.gi-hero h1 {
  margin: 18px 0 16px;
  font-size: clamp(36px, 5vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--gi-ink);
}

.gi-hero h1 .gi-accent {
  background: linear-gradient(90deg, var(--gi-accent), var(--gi-accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.gi-hero p.gi-lead {
  font-size: 18px;
  color: var(--gi-muted);
  max-width: 560px;
  line-height: 1.6;
  margin: 0 0 28px;
}

.gi-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.gi-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  border: 1px solid transparent;
}

.gi-btn--primary {
  background: var(--gi-ink);
  color: #fff;
  box-shadow: var(--gi-shadow);
}

.gi-btn--primary:hover {
  background: #14193a;
  color: #fff;
  transform: translateY(-1px);
}

.gi-btn--ghost {
  background: #fff;
  border-color: var(--gi-line-strong);
  color: var(--gi-ink);
}

.gi-btn--ghost:hover {
  border-color: var(--gi-ink);
  color: var(--gi-ink);
  transform: translateY(-1px);
}

.gi-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
  color: var(--gi-muted);
  font-size: 14px;
}

.gi-hero__meta strong {
  color: var(--gi-ink);
}

/* Hero visual card */
.gi-hero__visual {
  position: relative;
  background: linear-gradient(180deg, #ffffff 0%, #f3f5fb 100%);
  border: 1px solid var(--gi-line);
  border-radius: var(--gi-radius-lg);
  padding: 22px;
  box-shadow: var(--gi-shadow-lg);
}

.gi-hero__visual::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.35), transparent 40%, rgba(6, 182, 212, 0.3));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  padding: 1px;
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}

.gi-mock {
  background: #fff;
  border: 1px solid var(--gi-line);
  border-radius: var(--gi-radius);
  padding: 16px 18px;
}

.gi-mock + .gi-mock {
  margin-top: 14px;
}

.gi-mock__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.gi-mock__title {
  font-weight: 700;
  font-size: 14px;
}

.gi-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.gi-pill--green { background: #e7f7ee; color: #176d3a; }
.gi-pill--blue  { background: #e4ecff; color: #2b3aa3; }
.gi-pill--amber { background: #fef3e2; color: #8a4a06; }

.gi-bar {
  height: 8px;
  background: #eef1f6;
  border-radius: 999px;
  margin-top: 12px;
  overflow: hidden;
}

.gi-bar > span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--gi-accent), var(--gi-accent-2));
  border-radius: inherit;
}

.gi-mock__meta {
  margin-top: 8px;
  font-size: 12px;
  color: var(--gi-muted);
}

/* ---------- Sections ---------- */
.gi-section {
  padding: 80px 0;
}

.gi-section--alt {
  background: #fff;
  border-top: 1px solid var(--gi-line);
  border-bottom: 1px solid var(--gi-line);
}

.gi-section__head {
  max-width: 720px;
  margin: 0 auto 48px;
  text-align: center;
}

.gi-section__head h2 {
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 12px 0 12px;
}

.gi-section__head p {
  color: var(--gi-muted);
  font-size: 17px;
  line-height: 1.6;
  margin: 0;
}

/* Feature grid */
.gi-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.gi-feature {
  background: var(--gi-card);
  border: 1px solid var(--gi-line);
  border-radius: var(--gi-radius-lg);
  padding: 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.gi-feature:hover {
  transform: translateY(-3px);
  box-shadow: var(--gi-shadow);
  border-color: var(--gi-line-strong);
}

.gi-feature__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--gi-accent-soft);
  color: var(--gi-accent);
  margin-bottom: 16px;
  font-size: 22px;
}

.gi-feature h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 6px;
}

.gi-feature p {
  margin: 0;
  color: var(--gi-muted);
  font-size: 15px;
  line-height: 1.6;
}

/* Steps */
.gi-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  counter-reset: gi-step;
}

.gi-step {
  background: var(--gi-card);
  border: 1px solid var(--gi-line);
  border-radius: var(--gi-radius-lg);
  padding: 28px;
  position: relative;
}

.gi-step::before {
  counter-increment: gi-step;
  content: counter(gi-step, decimal-leading-zero);
  font-weight: 700;
  font-size: 12px;
  color: var(--gi-accent);
  letter-spacing: 0.1em;
}

.gi-step h3 {
  margin: 8px 0 6px;
  font-size: 18px;
  font-weight: 700;
}

.gi-step p {
  margin: 0;
  color: var(--gi-muted);
  font-size: 15px;
  line-height: 1.6;
}

/* LMS callout */
.gi-callout {
  background: linear-gradient(135deg, #0b1020 0%, #1a1f44 100%);
  color: #fff;
  border-radius: var(--gi-radius-lg);
  padding: 56px 48px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 36px;
  align-items: center;
  box-shadow: var(--gi-shadow-lg);
  position: relative;
  overflow: hidden;
}

.gi-callout::after {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  right: -120px;
  top: -160px;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.5), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.gi-callout h2 {
  font-size: clamp(24px, 2.6vw, 34px);
  font-weight: 800;
  margin: 0 0 12px;
}

.gi-callout p {
  color: #b9c0d7;
  font-size: 16px;
  line-height: 1.6;
  margin: 0 0 24px;
  max-width: 520px;
}

.gi-callout a.gi-btn--primary,
.gi-callout .gi-btn--primary {
  background: #fff;
  color: var(--gi-ink) !important;
  border-color: #fff;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.22);
}

.gi-callout a.gi-btn--primary:hover,
.gi-callout .gi-btn--primary:hover {
  background: #eef0ff;
  color: var(--gi-ink) !important;
  border-color: #eef0ff;
}

.gi-callout a.gi-btn--ghost,
.gi-callout .gi-btn--ghost {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff !important;
}

.gi-callout a.gi-btn--ghost:hover,
.gi-callout .gi-btn--ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.75);
  color: #fff !important;
}

.gi-callout__list {
  display: grid;
  gap: 14px;
}

.gi-callout__list .gi-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 14px;
}

.gi-callout__list code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: #c9d2ff;
  font-size: 13px;
}

/* Authenticated dashboard polish */
.gi-dash {
  display: grid;
  gap: 36px;
  padding: 56px 0 80px;
}

.gi-dash__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.gi-dash__head h1 {
  font-size: 28px;
  font-weight: 800;
  margin: 0 0 4px;
  letter-spacing: -0.01em;
}

.gi-dash__head p {
  margin: 0;
  color: var(--gi-muted);
}

.gi-card-group {
  background: #fff;
  border: 1px solid var(--gi-line);
  border-radius: var(--gi-radius-lg);
  padding: 24px;
  box-shadow: var(--gi-shadow-sm);
}

.gi-card-group h2 {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.gi-table-clean {
  width: 100%;
  border-collapse: collapse;
}

.gi-table-clean tr + tr td {
  border-top: 1px solid var(--gi-line);
}

.gi-table-clean td {
  padding: 12px 8px;
  vertical-align: middle;
  font-size: 14px;
}

.gi-table-clean td:first-child a {
  font-weight: 600;
  color: var(--gi-ink);
  text-decoration: none;
}

.gi-table-clean td:first-child a:hover {
  color: var(--gi-accent);
}

.gi-table-clean tr.archived td {
  color: var(--gi-muted);
  background: #fbfbfd;
}

.gi-empty {
  color: var(--gi-muted);
  font-size: 14px;
  padding: 8px 4px 0;
  margin: 0;
}

.gi-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.gi-btn--sm {
  height: 34px;
  padding: 0 14px;
  font-size: 13px;
}

/* Footer */
.gi-foot {
  border-top: 1px solid var(--gi-line);
  background: #fff;
  padding: 28px 0;
  color: var(--gi-muted);
  font-size: 13px;
}

.gi-foot__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 960px) {
  .gi-hero { padding: 64px 0 56px; }
  .gi-hero__grid { grid-template-columns: 1fr; gap: 40px; }
  .gi-features, .gi-steps { grid-template-columns: 1fr; }
  .gi-callout { grid-template-columns: 1fr; padding: 36px 28px; }
  .gi-section { padding: 56px 0; }
}