:root {
  /* Base Variables */
  --accent: #f2f547;
  --accent-text: #4d4e00; /* Darker yellow-olive tone for readable text on light backgrounds */
  --accent-glow: rgba(242, 245, 71, 0.35);

  /* Light Mode Variables */
  --bg:
    radial-gradient(circle at 20% 20%, #f0f4ff, #f5f6fb 35%),
    radial-gradient(circle at 80% 0%, #eef7ff, #f5f6fb 30%);
  --panel: #ffffff;
  --panel-hover: #f7f9ff;
  --panel-alt: #eef3ff;
  --detail-bg: #fafbff;
  --input-bg: #fdfdff;

  --text: #1f2430;
  --muted: #5b6270;
  --danger: #c62828;

  --pill-bg: #fdfde6;
  --pill-border: rgba(242, 245, 71, 0.6);

  --btn-bg: #eef3ff;
  --btn-hover: #e1e9ff;
  --btn-border-hover: #d5def7;

  --border: #e3e6ef;
  --shadow: 0 10px 40px rgba(31, 36, 48, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    /* Dark Mode Variables (Gray Shades + #f2f547 Accent) */
    --accent-text: #f2f547; /* Bright yellow works directly on dark gray */

    --bg: #121212;
    --panel: #1e1e1e;
    --panel-hover: #262626;
    --panel-alt: #2c2c2c;
    --detail-bg: #181818;
    --input-bg: #121212;

    --text: #e0e0e0;
    --muted: #9e9e9e;
    --danger: #ff6b6b;

    --pill-bg: #2a2b16;
    --pill-border: rgba(242, 245, 71, 0.3);

    --btn-bg: #2c2c2c;
    --btn-hover: #3a3a3a;
    --btn-border-hover: #555555;

    --border: #333333;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
  }
}

* {
  box-sizing: border-box;
}

.stack-sans-headline-main {
  font-family:
    "Stack Sans Headline", "Space Grotesk", "Hind Siliguri", sans-serif;
  font-optical-sizing: auto;
  font-weight: 600;
  font-style: normal;
}

body {
  margin: 0;
  font-family:
    "Stack Sans Headline", "Space Grotesk", "Hind Siliguri", sans-serif;
  background: var(--bg);
  color: var(--text);
}

button,
input,
select,
option,
label,
table,
th,
td,
.controls,
.control,
.toggle-btn {
  font-family:
    "Stack Sans Headline", "Space Grotesk", "Hind Siliguri", sans-serif;
}

a {
  color: var(--accent-text);
  text-decoration: underline;
  font-weight: 600;
  transition: color 140ms ease;
}

header {
  padding: 32px 24px 16px;
  max-width: 1100px;
  margin: 0 auto;
}

h1 {
  margin: 0 0 8px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.subhead {
  color: var(--muted);
  margin: 0;
  font-size: 15px;
}

.controls {
  max-width: 1100px;
  margin: 0 auto 12px;
  padding: 0 24px 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.control {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding-left: 12px;
  background: var(--panel);
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.control.search {
  flex: 1 1 260px;
  max-width: 460px;
}

label {
  color: var(--muted);
  font-size: 14px;
}

select,
input[type="number"],
input[type="text"] {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 14px;
  background: var(--input-bg);
  color: var(--text);
  transition:
    border-color 140ms ease,
    box-shadow 140ms ease;
}

input[type="text"] {
  width: 100%;
}

input[type="text"]:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

main {
  max-width: 1100px;
  margin: 0 auto 40px;
  padding: 0 24px 24px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

thead {
  background: var(--panel-alt);
}

th,
td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

th {
  font-weight: 700;
  color: var(--text);
}

/* Accent highlights for Rank, Grade, and Pill */
.col-rank {
  font-weight: 700;
  color: var(--accent-text);
}

tbody tr:last-child td {
  border-bottom: none;
}

tbody tr:hover {
  background: var(--panel-hover);
}

.pill {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--pill-bg);
  border: 1px solid var(--pill-border);
  color: var(--accent-text);
  font-weight: 700;
  font-size: 13px;
}

.muted {
  color: var(--muted);
}

.error,
.fail {
  color: var(--danger);
}

.fail {
  font-weight: 700;
}

.toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  padding: 4px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--btn-bg);
  color: var(--text);
  font-weight: 400;
  cursor: pointer;
  transition:
    background 140ms ease,
    border-color 140ms ease;
}

.toggle-btn:hover {
  background: var(--btn-hover);
  border-color: var(--btn-border-hover);
}

.detail-row {
  display: none;
  background: var(--detail-bg);
}

.detail-row td {
  border-top: none;
  padding: 0;
}

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

.detail-table th,
.detail-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

/* Accent highlight for Subject Grade column in detail table */
.detail-table td:nth-child(7) {
  font-weight: 700;
  color: var(--accent-text);
}

tr.open + .detail-row {
  display: table-row;
}

@media (max-width: 700px) {
  header {
    padding: 20px 16px 10px;
  }
  .controls {
    padding: 0 16px 8px;
    gap: 10px;
  }
  .control {
    width: 100%;
    justify-content: space-between;
  }
  .control.search {
    width: 100%;
  }
  main {
    padding: 0 16px 20px;
  }
}

@media (max-width: 800px) {
  main {
    padding: 0 12px 18px;
  }
  table {
    min-width: 720px;
    border-radius: 10px;
  }
  th,
  td {
    padding: 10px 10px;
    font-size: 13px;
  }
  .toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 6px;
  }
  .detail-row td {
    padding: 0;
  }
  .detail-table th,
  .detail-table td {
    padding: 6px 8px;
    font-size: 12px;
  }
}

.footer {
  display: grid;
  justify-content: center;
  color: var(--muted);
  text-align: center;
}

.footer-big {
  font-family:
    "Stack Sans Headline", "Space Grotesk", "Hind Siliguri", sans-serif;
  text-align: center;
  margin: 10px 0px;
  font-size: 4.5rem;
  font-weight: 700;
  color: var(--accent);
}

.not-found {
  text-align: left;
  padding: 30px;
  font-size: 1rem;
  color: var(--muted);
}

.spooder-promo {
  position: fixed;
  inset: 0;
  display: grid;
  align-items: end;
  justify-items: center;
  padding: 24px 24px 25px;
  background: transparent;
  opacity: 0;
  pointer-events: none;
  z-index: 9999;
  transition: opacity 220ms ease;
}

.spooder-promo.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.spooder-promo.is-hiding {
  opacity: 0;
}

.spooder-card {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 10px;
  width: min(240px, calc(100vw - 48px));
  padding: 18px 16px 16px;
  margin-bottom: 0;
  transform: translateY(18px) scale(0.85) rotate(-3deg);
  opacity: 0;
  transition:
    transform 320ms cubic-bezier(0.2, 0.9, 0.25, 1.2),
    opacity 220ms ease;
}

.spooder-promo.is-visible .spooder-card {
  transform: translateY(0) scale(1) rotate(0deg);
  opacity: 1;
  animation: spooder-bob 1.8s ease-in-out infinite;
}

.spooder-image {
  width: 92px;
  height: 92px;
  object-fit: contain;
  filter: drop-shadow(0 10px 16px rgba(12, 18, 32, 0.24));
  transform-origin: center bottom;
  animation: spooder-wiggle 1.2s ease-in-out infinite;
}

.spooder-bubble {
  position: relative;
  padding: 10px 14px;
  border-radius: 18px;
  border: 1px solid #ec1c24;
  background: var(--panel);
  color: #ec1c24;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  text-transform: lowercase;
  box-shadow: var(--shadow);
}

.spooder-bubble::after {
  content: "";
  position: absolute;
  top: -5px;
  left: 50%;
  width: 10px;
  height: 10px;
  transform: translateX(-50%) rotate(45deg);
  background: var(--panel);
  border-left: 1px solid var(--border);
  border-top: 1px solid var(--border);
}

.spooder-close:hover {
  transform: scale(1.06);
}

@keyframes spooder-bob {
  0%,
  100% {
    transform: translateY(0) scale(1) rotate(0deg);
  }
  50% {
    transform: translateY(-6px) scale(1.01) rotate(1deg);
  }
}

@keyframes spooder-wiggle {
  0%,
  100% {
    transform: rotate(-3deg) scale(1);
  }
  50% {
    transform: rotate(3deg) scale(1.03);
  }
}

@media (prefers-reduced-motion: reduce) {
  .spooder-promo,
  .spooder-card,
  .spooder-image {
    transition: none;
    animation: none;
  }
}