:root {
  --brand: #4e1a3d;
  --brand-oklch: oklch(31% 0.1 336);
  --ink: oklch(23% 0.025 336);
  --muted: oklch(45% 0.035 336);
  --paper: oklch(98% 0.008 336);
  --surface: oklch(99% 0.006 336);
  --line: oklch(86% 0.018 336);
  --success: oklch(43% 0.095 155);
  --error: oklch(45% 0.13 24);
  --shadow: 0 28px 82px oklch(24% 0.08 336 / 15%);
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  font-family: "Avenir Next", "Aptos", "Trebuchet MS", sans-serif;
  color: var(--ink);
  background: var(--paper);
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 18% 18%, oklch(78% 0.04 336 / 46%), transparent 32rem),
    radial-gradient(circle at 82% 10%, oklch(90% 0.035 70 / 62%), transparent 26rem),
    linear-gradient(135deg, oklch(98% 0.008 336), oklch(93% 0.018 336));
}

button,
input {
  font: inherit;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.page {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: clamp(1.25rem, 5vw, 5rem);
  position: relative;
}

.shell {
  display: grid;
  width: min(100%, 64rem);
  grid-template-columns: minmax(0, 1fr) minmax(24rem, 1.16fr);
  overflow: hidden;
  border: 1px solid oklch(100% 0 0 / 58%);
  border-radius: 1.8rem;
  background: color-mix(in oklch, var(--surface) 94%, transparent);
  box-shadow: var(--shadow);
}

.brand-panel {
  display: flex;
  min-height: 38rem;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(2rem, 5vw, 4rem);
  background:
    radial-gradient(circle at 24% 18%, oklch(58% 0.08 336 / 38%), transparent 14rem),
    radial-gradient(circle at 82% 12%, oklch(72% 0.065 68 / 22%), transparent 12rem),
    linear-gradient(145deg, var(--brand), oklch(22% 0.07 336));
  color: oklch(98% 0.01 336);
}

.logo-card {
  display: inline-grid;
  width: min(100%, 18rem);
  place-items: center;
  border-radius: 0.9rem;
  background: oklch(98% 0.006 336);
  padding: 0.9rem 1.35rem;
}

.logo-card img {
  display: block;
  width: 100%;
  height: auto;
}

.brand-copy {
  display: grid;
  gap: var(--space-sm);
  max-width: 26rem;
}

.wave {
  display: block;
  font-size: clamp(4rem, 10vw, 7.5rem);
  line-height: 0.9;
  margin-block-end: var(--space-sm);
  transform-origin: 70% 70%;
}

.quiet-mark {
  width: fit-content;
  border: 1px solid oklch(92% 0.018 336 / 26%);
  border-radius: 999px;
  color: oklch(90% 0.02 336);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 0.45rem 0.62rem;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-family: "Iowan Old Style", "Charter", "Palatino Linotype", serif;
  font-size: clamp(2.6rem, 6vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.055em;
  line-height: 0.95;
  text-wrap: balance;
}

.brand-copy p {
  margin: 0;
  color: oklch(91% 0.018 336);
  font-size: clamp(1.08rem, 1.6vw, 1.28rem);
  line-height: 1.62;
  max-width: 23rem;
}

.form-panel {
  display: grid;
  align-content: center;
  padding: clamp(2rem, 5vw, 4.5rem);
}

.program-picker {
  position: absolute;
  inset: clamp(0.75rem, 2vw, 1.5rem) clamp(0.75rem, 2vw, 1.5rem) auto auto;
  z-index: 2;
  width: min(20rem, calc(100% - 1.5rem));
}

.program-trigger {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  border: 1px solid oklch(70% 0.036 336 / 24%);
  border-radius: 1rem;
  background: oklch(97% 0.01 336 / 72%);
  color: var(--ink);
  cursor: pointer;
  padding: 0.68rem 0.76rem 0.68rem 0.9rem;
  text-align: left;
  transition: background 180ms ease, border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.program-trigger:hover:not(:disabled),
.program-trigger:focus-visible {
  background: oklch(99% 0.006 336 / 92%);
  border-color: oklch(57% 0.08 336 / 32%);
  box-shadow: 0 10px 32px oklch(24% 0.08 336 / 8%);
  outline: none;
}

.program-trigger:disabled {
  cursor: wait;
  opacity: 0.72;
}

.program-eyebrow {
  display: block;
  color: oklch(42% 0.035 336 / 76%);
  font-size: 0.58rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  line-height: 1;
  text-transform: uppercase;
}

.program-choice {
  display: block;
  max-width: 14rem;
  overflow: hidden;
  color: var(--brand);
  font-size: 0.92rem;
  font-weight: 800;
  line-height: 1.45;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.program-action {
  flex: 0 0 auto;
  border-radius: 999px;
  background: oklch(91% 0.02 336 / 76%);
  color: oklch(36% 0.08 336);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  padding: 0.34rem 0.54rem;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.program-picker[data-open="true"] .program-action {
  background: var(--brand);
  color: oklch(98% 0.01 336);
  transform: translateY(-1px);
}

.program-menu {
  display: grid;
  gap: var(--space-xs);
  margin-top: var(--space-xs);
  border: 1px solid oklch(73% 0.032 336 / 36%);
  border-radius: 1rem;
  background: oklch(99% 0.006 336 / 98%);
  box-shadow: 0 18px 48px oklch(24% 0.08 336 / 14%);
  opacity: 0;
  padding: var(--space-sm);
  transform: translateY(-0.55rem);
  transform-origin: top right;
  transition: opacity 160ms ease, transform 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

.program-picker[data-open="true"] .program-menu {
  opacity: 1;
  transform: translateY(0);
}

.program-search {
  width: 100%;
  border: 1px solid oklch(82% 0.02 336 / 82%);
  border-radius: 0.76rem;
  background: oklch(97% 0.01 336);
  color: var(--ink);
  outline: none;
  padding: 0.72rem 0.78rem;
}

.program-search:focus {
  border-color: color-mix(in oklch, var(--brand-oklch), white 28%);
  box-shadow: 0 0 0 0.18rem oklch(45% 0.1 336 / 10%);
}

.program-options {
  display: grid;
  gap: var(--space-2xs);
  max-height: 12.5rem;
  overflow: auto;
}

.program-option {
  border: 0;
  border-radius: 0.72rem;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-weight: 700;
  padding: 0.68rem 0.72rem;
  text-align: left;
  transition: background 140ms ease, color 140ms ease, transform 140ms ease;
}

.program-option:hover,
.program-option:focus-visible {
  background: oklch(95% 0.018 336);
  outline: none;
  transform: translateX(1px);
}

.program-option[data-selected="true"] {
  background: var(--brand);
  color: oklch(98% 0.01 336);
  font-weight: 800;
}

.program-status {
  min-height: 1rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  padding-inline: var(--space-sm);
}

.attendance-form {
  display: grid;
  gap: var(--space-lg);
}

.field-group {
  display: grid;
  gap: var(--space-md);
}

label {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.student-input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: oklch(99% 0.006 336);
  color: var(--brand);
  font-size: clamp(2rem, 5.2vw, 3.55rem);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.025em;
  line-height: 1;
  outline: none;
  padding: 1.25rem 0.9rem;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.student-input:focus {
  border-color: color-mix(in oklch, var(--brand-oklch), white 24%);
  box-shadow: 0 0 0 0.28rem oklch(45% 0.1 336 / 13%);
}

.student-input[data-tone="success"] {
  border-color: var(--success);
  box-shadow: 0 0 0 0.28rem oklch(43% 0.095 155 / 15%);
}

.student-input[data-tone="error"] {
  border-color: var(--error);
  box-shadow: 0 0 0 0.28rem oklch(45% 0.13 24 / 15%);
}

.student-input::placeholder {
  color: oklch(78% 0.025 336);
}

.help-row {
  min-height: 1.35rem;
  color: var(--muted);
  font-size: 0.98rem;
}

.help-row[data-tone="success"] {
  color: var(--success);
}

.help-row[data-tone="error"] {
  color: var(--error);
}

.submit-button {
  width: 100%;
  border: 0;
  border-radius: 0.95rem;
  background: var(--brand);
  box-shadow: 0 12px 28px oklch(24% 0.08 336 / 16%);
  color: oklch(98% 0.01 336);
  cursor: pointer;
  font-weight: 800;
  margin-top: var(--space-xs);
  padding: 1.2rem 1.35rem;
  transition: box-shadow 180ms ease, color 180ms ease, transform 180ms ease, background 180ms ease;
}

.submit-button:hover:not(:disabled) {
  background: oklch(26% 0.105 336);
  transform: translateY(-1px);
}

.submit-button:disabled {
  background: oklch(91% 0.018 336);
  box-shadow: none;
  color: oklch(52% 0.032 336);
  cursor: not-allowed;
}

.toast {
  position: fixed;
  inset: auto clamp(1rem, 4vw, 2rem) clamp(1rem, 4vw, 2rem) auto;
  display: grid;
  gap: 0.18rem;
  max-width: min(25rem, calc(100vw - 2rem));
  border: 1px solid oklch(78% 0.03 336 / 42%);
  border-radius: 1rem;
  background: oklch(99% 0.006 336);
  box-shadow: 0 18px 54px oklch(24% 0.08 336 / 16%);
  color: var(--ink);
  opacity: 0;
  padding: 0.95rem 1.05rem;
  transform: translateY(0.9rem) scale(0.98);
  transition: opacity 180ms ease, transform 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.toast[data-visible="true"] {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.toast-kicker {
  color: var(--success);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.toast-message {
  color: var(--ink);
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.45;
}

.toast[data-tone="error"] {
  border-color: oklch(62% 0.09 24 / 44%);
  background: oklch(98% 0.012 24);
}

.toast[data-tone="error"] .toast-kicker {
  color: var(--error);
}

@media (max-width: 760px) {
  .shell {
    grid-template-columns: 1fr;
    border-radius: 1.35rem;
  }

  .brand-panel {
    min-height: auto;
    gap: var(--space-2xl);
  }

  .logo-card {
    width: min(100%, 15rem);
  }

  .program-picker {
    inset: var(--space-sm) var(--space-sm) auto auto;
    width: min(14rem, calc(100% - 1.5rem));
  }

  .toast {
    inset-inline: 1rem;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}