*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--black-soft);
  color: var(--grey-100);
  font-family: var(--font-sans);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}
body.public-page { background: var(--grey-100); color: var(--charcoal); }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; }
:focus-visible { outline: 3px solid var(--warning); outline-offset: 3px; }

.skip-link {
  position: fixed;
  left: 12px;
  top: -60px;
  z-index: 2000;
  background: var(--white);
  color: var(--black);
  padding: 10px 14px;
  border-radius: 8px;
}
.skip-link:focus { top: 12px; }

.container { width: min(calc(100% - 40px), var(--content-width)); margin: 0 auto; }
.section { padding: 84px 0; }
.section-sm { padding: 54px 0; }
.section-dark { background: var(--charcoal); color: var(--grey-100); }
.section-black { background: var(--black); color: var(--grey-100); }
.section-head { max-width: 760px; margin-bottom: 34px; }
.eyebrow {
  margin: 0 0 10px;
  color: var(--grey-600);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.section-dark .eyebrow, .section-black .eyebrow { color: var(--grey-400); }
h1, h2, h3, h4, p { margin-top: 0; }
h1, h2, h3, h4 { line-height: 1.12; letter-spacing: -0.025em; }
h1 { font-size: clamp(2.5rem, 6vw, 5.3rem); }
h2 { font-size: clamp(2rem, 4vw, 3.4rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.55rem); }
p { color: var(--grey-600); }
.section-dark p, .section-black p { color: var(--grey-400); }
.lead { font-size: clamp(1.05rem, 2vw, 1.3rem); max-width: 720px; }
.muted { color: var(--grey-500); }
.small { font-size: 0.875rem; }
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}
.hidden { display: none !important; }

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 11px 18px;
  background: var(--white);
  color: var(--black);
  font-weight: 750;
  transition: transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
}
.button:hover { transform: translateY(-1px); background: var(--grey-200); }
.button-secondary { background: transparent; border-color: var(--grey-700); color: inherit; }
.button-secondary:hover { background: var(--grey-900); border-color: var(--grey-500); }
.public-page .button-secondary { border-color: var(--grey-400); }
.public-page .button-secondary:hover { background: var(--grey-200); }
.button-dark { background: var(--black); color: var(--white); }
.button-dark:hover { background: var(--grey-900); }
.button-danger { background: var(--danger-bg); color: var(--danger); border-color: #6b3434; }
.button-block { width: 100%; }
.button:disabled { opacity: 0.48; transform: none; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; }
.link-button { border: 0; background: transparent; color: inherit; padding: 0; text-decoration: underline; }

.card {
  background: var(--white);
  border: 1px solid var(--grey-300);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.05);
}
.dark-card {
  background: var(--charcoal);
  border: 1px solid var(--grey-800);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}
.card-pad { padding: 24px; }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.two-col { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.three-col { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }

.status-badge {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--grey-700);
  border-radius: 999px;
  padding: 5px 9px;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}
.status-success { color: var(--success); background: var(--success-bg); border-color: #315c39; }
.status-danger { color: var(--danger); background: var(--danger-bg); border-color: #693333; }
.status-warning { color: var(--warning); background: var(--warning-bg); border-color: #665521; }
.status-neutral { color: var(--grey-300); background: var(--grey-900); border-color: var(--grey-700); }

.notice {
  border: 1px solid var(--grey-700);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  background: var(--grey-900);
}
.notice p { margin-bottom: 0; }
.notice-danger { background: var(--danger-bg); border-color: #703c3c; }
.notice-warning { background: var(--warning-bg); border-color: #675824; }
.notice-success { background: var(--success-bg); border-color: #315c39; }

.loading-state, .empty-state, .error-state {
  min-height: 130px;
  display: grid;
  place-items: center;
  text-align: center;
  border: 1px dashed var(--grey-700);
  border-radius: var(--radius-md);
  padding: 24px;
  color: var(--grey-400);
}
.public-page .loading-state, .public-page .empty-state, .public-page .error-state {
  border-color: var(--grey-300);
  color: var(--grey-600);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  min-height: var(--header-height);
  background: rgba(5, 5, 5, 0.96);
  color: var(--white);
  border-bottom: 1px solid var(--grey-800);
  backdrop-filter: blur(12px);
}
.site-header-inner {
  width: min(calc(100% - 32px), var(--content-width));
  min-height: var(--header-height);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand-link { display: inline-flex; align-items: center; min-width: 190px; }
.brand-link img { width: 180px; height: 52px; object-fit: contain; object-position: left center; }
.site-nav { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.site-nav a, .site-nav button {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  border: 0;
  border-radius: 9px;
  padding: 9px 13px;
  background: transparent;
  color: var(--grey-300);
  font-weight: 650;
}
.site-nav a:hover, .site-nav button:hover, .site-nav a[aria-current="page"] { background: var(--grey-900); color: var(--white); }
.mobile-nav-button {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  border: 1px solid var(--grey-700);
  border-radius: 10px;
  background: transparent;
  color: var(--white);
}

.site-footer { background: var(--black); color: var(--grey-300); border-top: 1px solid var(--grey-800); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 34px; padding: 56px 0 36px; }
.footer-brand img { width: 260px; max-height: 120px; object-fit: contain; object-position: left; margin-bottom: 18px; }
.footer-links { display: grid; gap: 10px; }
.footer-links a:hover { color: var(--white); }
.footer-bottom { padding: 20px 0 30px; border-top: 1px solid var(--grey-800); color: var(--grey-500); font-size: 0.88rem; }

.toast-container { position: fixed; right: 18px; bottom: 18px; z-index: 2200; display: grid; gap: 10px; width: min(390px, calc(100% - 36px)); }
.toast { padding: 14px 16px; border: 1px solid var(--grey-700); border-radius: 12px; background: var(--grey-900); color: var(--white); box-shadow: var(--shadow-soft); }
.toast.success { border-color: #315c39; background: var(--success-bg); color: var(--success); }
.toast.error { border-color: #703c3c; background: var(--danger-bg); color: var(--danger); }
.toast.warning { border-color: #675824; background: var(--warning-bg); color: var(--warning); }

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 2100;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.78);
}
.modal {
  width: min(520px, 100%);
  border: 1px solid var(--grey-700);
  border-radius: var(--radius-md);
  background: var(--charcoal);
  color: var(--grey-100);
  padding: 26px;
  box-shadow: var(--shadow-soft);
}
.modal-actions { margin-top: 22px; display: flex; justify-content: flex-end; gap: 10px; }

.form-field { display: grid; gap: 8px; }
.form-label { font-weight: 700; }
.form-input {
  width: 100%;
  min-height: 50px;
  border: 1px solid var(--grey-700);
  border-radius: 11px;
  padding: 12px 14px;
  background: var(--grey-900);
  color: var(--white);
}
.form-input::placeholder { color: var(--grey-500); }
.form-message { min-height: 24px; margin: 12px 0 0; font-size: 0.92rem; }
.form-message.error { color: var(--danger); }
.form-message.success { color: var(--success); }

@media (max-width: 860px) {
  .card-grid, .three-col { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .mobile-nav-button { display: inline-grid; place-items: center; }
  .site-nav {
    position: fixed;
    inset: var(--header-height) 0 auto 0;
    display: none;
    margin: 0;
    padding: 14px 16px 22px;
    background: var(--black);
    border-bottom: 1px solid var(--grey-800);
    flex-direction: column;
    align-items: stretch;
  }
  .site-nav.open { display: flex; }
  .site-nav a, .site-nav button { justify-content: flex-start; width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .container { width: min(calc(100% - 28px), var(--content-width)); }
  .section { padding: 62px 0; }
  .section-sm { padding: 42px 0; }
  .brand-link { min-width: 0; }
  .brand-link img { width: 155px; }
  .button-row { flex-direction: column; }
  .button-row .button { width: 100%; }
}
.payment-modal {
  width: min(560px, 100%);
  text-align: center;
}

.payment-amount {
  margin: 8px 0 18px;
  color: var(--white);
  font-size: 2rem;
  font-weight: 850;
}

.payment-qr {
  display: block;
  width: min(100%, 390px);
  max-height: 520px;
  margin: 0 auto 16px;
  border-radius: 18px;
  object-fit: contain;
  background: var(--white);
}

.payment-upi {
  color: var(--white);
  font-weight: 750;
}

.payment-instructions {
  max-width: 440px;
  margin: 12px auto 0;
  color: var(--grey-400);
  line-height: 1.6;
}

.payment-actions {
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 560px) {
  .payment-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .payment-actions .button {
    width: 100%;
  }
}

/* Mobile-only highlighted shortcut inside the three-bar public menu. */
.quick-attendance-nav {
  display: none !important;
}

@media (max-width: 860px) {
  .site-nav .quick-attendance-nav {
    display: inline-flex !important;
    order: -1;
    justify-content: center;
    min-height: 52px;
    margin-bottom: 6px;
    border: 1px solid var(--warning);
    background: var(--warning);
    color: var(--black);
    font-weight: 850;
    box-shadow: 0 0 0 4px rgba(230, 195, 106, 0.10);
  }

  .site-nav .quick-attendance-nav:hover,
  .site-nav .quick-attendance-nav[aria-current="page"] {
    background: #f1d98c;
    color: var(--black);
  }
}

/* Mobile-only guest-attendance shortcut beside Quick Attendance. */
.guest-attendance-nav {
  display: none !important;
}

@media (max-width: 860px) {
  .site-nav .quick-attendance-nav { order: -2; }

  .site-nav .guest-attendance-nav {
    display: inline-flex !important;
    order: -1;
    justify-content: center;
    min-height: 52px;
    margin-bottom: 6px;
    border: 1px solid var(--grey-100);
    background: var(--grey-100);
    color: var(--black);
    font-weight: 850;
    box-shadow: 0 0 0 4px rgba(245, 245, 242, 0.08);
  }

  .site-nav .guest-attendance-nav:hover,
  .site-nav .guest-attendance-nav[aria-current="page"] {
    background: var(--white);
    color: var(--black);
  }
}