:root {
  --ck-red-950: #350404;
  --ck-red-900: #650707;
  --ck-red-800: #8f0000;
  --ck-red-700: #b80000;
  --ck-red-600: #d40000;
  --ck-red-100: #ffe7e7;
  --ck-red-050: #fff7f7;
  --ck-ink: #171717;
  --ck-muted: #5c6270;
  --ck-card: rgba(255, 255, 255, 0.94);
  --ck-line: rgba(184, 0, 0, 0.16);
  --ck-shadow-sm: 0 8px 22px rgba(44, 8, 8, 0.08);
  --ck-shadow-md: 0 18px 48px rgba(44, 8, 8, 0.14);
  --ck-shadow-lg: 0 30px 80px rgba(44, 8, 8, 0.22);
  --ck-radius: 8px;
  --ck-max: 1160px;
  --ck-ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ck-ink);
  background:
    linear-gradient(90deg, rgba(184, 0, 0, 0.04) 1px, transparent 1px),
    linear-gradient(180deg, rgba(184, 0, 0, 0.035) 1px, transparent 1px),
    linear-gradient(135deg, #ffffff 0%, #fff7f7 48%, #ffffff 100%);
  background-size: 42px 42px, 42px 42px, auto;
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

button,
select {
  font: inherit;
}

button:focus-visible,
select:focus-visible,
a:focus-visible {
  outline: 3px solid #ffcf33;
  outline-offset: 3px;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px clamp(16px, 4vw, 56px);
  color: #fff;
  background: linear-gradient(135deg, rgba(53, 4, 4, 0.98), rgba(184, 0, 0, 0.94));
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 12px 36px rgba(80, 0, 0, 0.28);
  backdrop-filter: blur(14px);
}

.navbar .logo {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-size: clamp(16px, 2vw, 21px);
  font-weight: 900;
  line-height: 1.15;
}

.navbar .logo img {
  width: 52px;
  height: 52px;
  flex: 0 0 52px;
  border: 2px solid #fff;
  border-radius: 50%;
  object-fit: cover;
  background: #fff;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.22);
}

.navbar .nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.navbar .nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 9px 13px;
  border-radius: var(--ck-radius);
  color: #fff;
  font-weight: 800;
  transition: background 0.22s var(--ck-ease), transform 0.22s var(--ck-ease);
}

.navbar .nav-links a:hover {
  background: rgba(255, 255, 255, 0.13);
  transform: translateY(-1px);
}

.fee-section {
  position: relative;
  width: min(var(--ck-max), calc(100% - 28px));
  min-height: 70vh;
  margin: 0 auto;
  padding: clamp(42px, 7vw, 82px) 0;
}

.fee-section::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(135deg, rgba(20, 3, 3, 0.76), rgba(130, 0, 0, 0.56)),
    url("../IMAGES/Chitrakala/chitrakala-bg.jpg") center / cover no-repeat;
}

.fee-section::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.28;
}

.fee-header {
  max-width: 820px;
  margin: 0 auto clamp(22px, 4vw, 36px);
  text-align: center;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  margin-bottom: 12px;
  padding: 6px 12px;
  border: 1px solid rgba(184, 0, 0, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--ck-red-800);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: var(--ck-shadow-sm);
}

.fee-header h1 {
  color: #fff;
  font-size: clamp(34px, 8vw, 64px);
  line-height: 1.02;
  letter-spacing: 0;
  margin-bottom: 12px;
  text-wrap: balance;
}

.fee-header p:not(.section-kicker) {
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(15px, 2.4vw, 18px);
}

.fee-box {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 3vw, 24px);
  width: 100%;
  padding: clamp(18px, 4vw, 34px);
  border: 1px solid var(--ck-line);
  border-radius: var(--ck-radius);
  background: var(--ck-card);
  box-shadow: var(--ck-shadow-lg);
  overflow: hidden;
}

.fee-box::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 6px;
  background: linear-gradient(90deg, var(--ck-red-900), var(--ck-red-600), #202020);
}

.fee-status {
  padding: 12px 14px;
  border: 1px solid rgba(184, 0, 0, 0.14);
  border-left: 4px solid var(--ck-red-700);
  border-radius: var(--ck-radius);
  background: var(--ck-red-050);
  color: var(--ck-muted);
  font-size: 14px;
  font-weight: 700;
}

.fee-status.success {
  border-left-color: #1f7a3a;
  background: #f1fff5;
  color: #1f6b34;
}

.fee-status.error {
  border-left-color: #c62828;
  background: #fff1f1;
  color: #9d1717;
}

.fee-sheet-display {
  padding: clamp(16px, 3vw, 24px);
  border: 1px solid var(--ck-line);
  border-radius: var(--ck-radius);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(255, 247, 247, 0.96));
  box-shadow: var(--ck-shadow-sm);
}

.fee-sheet-display h2 {
  color: var(--ck-red-800);
  font-size: clamp(21px, 4vw, 28px);
  line-height: 1.15;
  margin-bottom: 16px;
  text-align: center;
}

.sheet-table-container {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--ck-radius);
}

.fee-sheet-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  overflow: hidden;
  background: #fff;
  border-radius: var(--ck-radius);
}

.fee-sheet-table th,
.fee-sheet-table td {
  padding: 13px 14px;
  text-align: left;
  border-bottom: 1px solid rgba(184, 0, 0, 0.12);
}

.fee-sheet-table thead {
  color: #fff;
  background: linear-gradient(135deg, var(--ck-red-900), var(--ck-red-600));
}

.fee-sheet-table th {
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.fee-sheet-table tbody tr {
  transition: background 0.18s var(--ck-ease);
}

.fee-sheet-table tbody tr:hover {
  background: var(--ck-red-050);
}

.fee-selection-group {
  display: grid;
  gap: 8px;
}

.fee-selection-group label {
  color: var(--ck-ink);
  font-size: 14px;
  font-weight: 900;
}

#feeType,
#classType {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid rgba(184, 0, 0, 0.2);
  border-radius: var(--ck-radius);
  background: #fff;
  color: var(--ck-ink);
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
  transition: border-color 0.22s var(--ck-ease), box-shadow 0.22s var(--ck-ease), transform 0.22s var(--ck-ease);
}

#feeType:hover,
#classType:hover {
  border-color: var(--ck-red-600);
}

#feeType:focus,
#classType:focus {
  border-color: var(--ck-red-700);
  box-shadow: 0 0 0 4px rgba(184, 0, 0, 0.1);
  outline: none;
}

#feeType:disabled,
#classType:disabled {
  cursor: not-allowed;
  opacity: 0.68;
  background: #f3f3f3;
}

.amount-display {
  padding: clamp(16px, 3vw, 24px);
  border: 1px solid rgba(184, 0, 0, 0.22);
  border-radius: var(--ck-radius);
  background:
    linear-gradient(135deg, rgba(184, 0, 0, 0.08), rgba(255, 255, 255, 0.95));
  box-shadow: var(--ck-shadow-sm);
  animation: ck-pop 0.28s var(--ck-ease);
}

.amount-display[hidden],
.pay-btn[hidden] {
  display: none !important;
}

.amount-display h3 {
  color: var(--ck-red-800);
  font-size: clamp(19px, 3vw, 24px);
  margin-bottom: 14px;
}

.amount-box {
  display: grid;
  gap: 10px;
}

.detail-label {
  display: inline-flex;
  padding: 7px 10px;
  border-radius: 999px;
  background: #fff;
  color: var(--ck-muted);
  font-size: 14px;
  font-weight: 800;
}

.amount-value {
  display: grid;
  place-items: center;
  min-height: 86px;
  padding: 18px;
  border: 1px solid rgba(184, 0, 0, 0.14);
  border-radius: var(--ck-radius);
  background: #fff;
}

#feeAmount {
  color: var(--ck-red-700);
  font-size: clamp(34px, 8vw, 52px);
  font-weight: 900;
  line-height: 1;
}

.pay-btn {
  width: 100%;
  min-height: 50px;
  padding: 14px 18px;
  border: 0;
  border-radius: var(--ck-radius);
  color: #fff;
  background: linear-gradient(135deg, var(--ck-red-900), var(--ck-red-600));
  box-shadow: 0 14px 28px rgba(184, 0, 0, 0.24);
  cursor: pointer;
  font-size: 16px;
  font-weight: 900;
  transition: transform 0.22s var(--ck-ease), box-shadow 0.22s var(--ck-ease), filter 0.22s var(--ck-ease);
}

.pay-btn:hover {
  transform: translateY(-2px);
  filter: saturate(1.08);
  box-shadow: 0 18px 36px rgba(184, 0, 0, 0.3);
}

.pay-btn:active {
  transform: translateY(0);
}

.footer {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(135deg, var(--ck-red-950), var(--ck-red-800));
}

.footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
  background-size: 52px 52px;
  opacity: 0.42;
}

.footer > * {
  position: relative;
  z-index: 1;
}

.footer-container {
  width: min(var(--ck-max), calc(100% - 28px));
  margin: 0 auto;
  padding: clamp(32px, 6vw, 54px) 0;
}

.footer-top {
  display: grid;
  justify-items: center;
  gap: 10px;
  text-align: center;
  margin-bottom: 30px;
}

.footer-logo {
  width: 74px;
  height: 74px;
  border: 3px solid #fff;
  border-radius: 50%;
  object-fit: cover;
  background: #fff;
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.22);
}

.footer-brand {
  font-size: clamp(20px, 4vw, 28px);
  color: #fff;
}

.footer-description p {
  color: #ffe1e1;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 22px;
}

.footer-column h3 {
  margin-bottom: 10px;
  color: #fff;
  font-size: 16px;
}

.footer-column ul {
  display: grid;
  gap: 7px;
  list-style: none;
}

.footer-column a,
.footer-links-bottom a {
  color: #ffe1e1;
  transition: color 0.22s var(--ck-ease), transform 0.22s var(--ck-ease);
}

.footer-column a:hover,
.footer-links-bottom a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px clamp(14px, 4vw, 56px);
  background: rgba(0, 0, 0, 0.3);
}

.footer-content p {
  color: #ffdede;
  font-size: 13px;
}

.footer-content strong {
  color: #fff;
}

.footer-links-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: flex-end;
}

@keyframes ck-pop {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 820px) {
  .fee-box {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .fee-status,
  .fee-sheet-display,
  .amount-display,
  .pay-btn {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  .navbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .navbar .nav-links {
    width: 100%;
  }

  .navbar .nav-links a {
    width: 100%;
    justify-content: center;
    background: rgba(255, 255, 255, 0.12);
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .footer-links-bottom {
    justify-content: center;
  }
}

@media (max-width: 460px) {
  .fee-section,
  .footer-container {
    width: min(100% - 18px, var(--ck-max));
  }

  .navbar .logo img {
    width: 44px;
    height: 44px;
    flex-basis: 44px;
  }

  .fee-sheet-table {
    min-width: 500px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}