/* ============ The Mathologists — Booking & Payment page ============ */
/* Builds on styles.css (palette + tokens + nav + footer). Pay-specific only. */

.pay-body {
  /* Pay page uses a single clean typeface: Inter (overrides the site tokens
     for this page only — the landing page keeps DM Sans + JetBrains Mono). */
  --sans: "Inter", system-ui, sans-serif;
  --mono: "Inter", system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
}

/* ----------- Page header strip ----------- */
.pay-head {
  background: var(--bg);
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  padding: clamp(22px, 3vw, 32px) 0 clamp(18px, 2.5vw, 24px);
}
.pay-head-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 40px);
}
.pay-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 14px;
  transition: color .15s;
}
.pay-back:hover { color: var(--accent-deep); }
.pay-head h1 {
  font-family: var(--sans);
  font-size: clamp(24px, 2.8vw, 32px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 6px 0 0;
}
.pay-head h1 .grad {
  background: linear-gradient(135deg, #38D430 0%, #087802 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.pay-head p {
  color: var(--on-deep-mute);
  font-size: 15px;
  margin: 0;
  max-width: 60ch;
}

/* Step indicator */
.pay-steps {
  display: flex;
  gap: 10px;
  margin-top: 22px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.pay-step {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--on-deep-mute);
}
.pay-step b {
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  border: 1.5px solid rgba(255,255,255,0.25);
  font-weight: 600;
  font-size: 11px;
}
.pay-step.is-active { color: var(--on-deep); }
.pay-step.is-active b {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.pay-step + .pay-step::before {
  content: "";
  width: 18px;
  height: 1px;
  background: rgba(255,255,255,0.2);
  margin-right: 2px;
}

/* ----------- Main layout ----------- */
.pay-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: clamp(28px, 4vw, 48px) clamp(20px, 4vw, 40px) clamp(56px, 7vw, 88px);
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: clamp(24px, 3vw, 40px);
  align-items: start;
}
@media (max-width: 920px) {
  .pay-main { grid-template-columns: 1fr; }
}

/* Generic outlined block (matches landing-page card style) */
.pay-block {
  background: var(--bg-card);
  border: 1.5px solid var(--line);
  border-radius: 16px;
  padding: clamp(22px, 3vw, 30px);
  margin-bottom: 22px;
}
.pay-block-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  gap: 12px;
  margin-bottom: 4px;
}
.pay-kicker {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-deep);
}
.pay-block h2 {
  font-family: var(--sans);
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 6px 0 4px;
  color: var(--ink);
}
.pay-block .hint {
  font-size: 13.5px;
  color: var(--ink-soft);
  margin: 0 0 18px;
  line-height: 1.55;
}

/* ----------- Session overview ----------- */
.session-card { border-top: 4px solid var(--accent); }
.session-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin: 10px 0 18px;
}
.session-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--accent-tint);
  border: 1px solid var(--accent-soft);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
}
.session-chip .lab {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 500;
}

/* Timetable */
.tt {
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  margin: 4px 0 16px;
}
.tt-week {
  font-family: var(--sans);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-deep);
  background: var(--bg);
  padding: 8px 16px;
  border-bottom: 1px solid var(--line-soft);
}
.tt-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr auto;
  gap: 6px 16px;
  align-items: center;
  padding: 9px 16px;
  border-bottom: 1px solid var(--line-soft);
}
.tt-row:last-child { border-bottom: 0; }
.tt-row.is-mock { background: var(--accent-tint); }
.tt-label {
  font-weight: 700;
  font-size: 13px;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 9px;
}
.tt-dot {
  width: 7px; height: 7px; border-radius: 999px;
  background: var(--accent); flex-shrink: 0;
}
.tt-row.is-rev .tt-dot { background: var(--ink-mute); }
.tt-date, .tt-time {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink);
}
.tt-time { color: var(--ink-soft); }
.tt-dur {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-mute);
  text-align: right;
  white-space: nowrap;
}
@media (max-width: 560px) {
  .tt-row {
    grid-template-columns: 1fr auto;
    row-gap: 4px;
  }
  .tt-label { grid-column: 1 / -1; }
  .tt-dur { grid-row: 1; grid-column: 2; }
}

.session-loc {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.5;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}
.session-loc .pin { font-size: 15px; line-height: 1.4; }

/* Change-session toggle + panel */
.change-btn {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-deep);
  background: var(--bg-card);
  border: 1.5px solid var(--accent);
  border-radius: 999px;
  padding: 7px 16px;
  cursor: pointer;
  transition: background .15s, color .15s;
  white-space: nowrap;
}
.change-btn:hover { background: var(--accent-tint); }
.change-btn[aria-expanded="true"] {
  background: var(--accent);
  color: #fff;
}

.change-panel {
  margin-top: 18px;
  border-top: 1px dashed var(--line);
  padding-top: 18px;
  display: grid;
  gap: 18px;
}
.change-panel[hidden] { display: none; }
.change-field > span {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 9px;
}

/* Segmented pill controls */
.seg {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 8px;
}
.seg-pill {
  font-family: var(--sans);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-soft);
  background: var(--bg);
  border: 1.5px solid var(--line);
  border-radius: 999px;
  padding: 9px 18px;
  cursor: pointer;
  transition: border-color .15s, background .15s, color .15s, box-shadow .15s;
}
.seg-pill:hover { border-color: var(--accent); color: var(--ink); }
.seg-pill.is-on {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px -6px rgba(8,120,2,0.5);
}
.seg-pill[disabled] {
  opacity: 0.4;
  cursor: not-allowed;
}
.seg.seg-lg .seg-pill { padding: 12px 22px; font-size: 14px; }

/* Plan cards */
.plan-grid { display: grid; gap: 10px; }
.plan {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  align-items: center;
  gap: 14px;
  border: 1.5px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.plan:hover { border-color: var(--accent); }
.plan.is-on { border-color: var(--accent); background: var(--accent-tint); }
.plan-radio {
  width: 20px; height: 20px;
  border-radius: 999px;
  border: 2px solid var(--line);
  position: relative;
}
.plan.is-on .plan-radio { border-color: var(--accent); }
.plan.is-on .plan-radio::after {
  content: ""; position: absolute; inset: 3px;
  background: var(--accent); border-radius: 999px;
}
.plan-name { font-weight: 700; font-size: 14.5px; color: var(--ink); }
.plan-desc { font-size: 12.5px; color: var(--ink-soft); margin-top: 2px; line-height: 1.4; }
.plan-price {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 15px;
  color: var(--ink);
  text-align: right;
}
.plan-price s { color: var(--ink-mute); font-weight: 400; font-size: 12px; display: block; }

/* ----------- Forms ----------- */
.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 18px;
}
@media (max-width: 560px) { .field-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; }
.field.col-2 { grid-column: 1 / -1; }
.field label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 7px;
}
.field label .req { color: var(--accent-deep); }
.field input,
.field select {
  font-family: var(--sans);
  font-size: 15px;
  color: var(--ink);
  background: var(--bg-card);
  border: 1.5px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  width: 100%;
  transition: border-color .15s, box-shadow .15s;
}
.field input::placeholder { color: var(--ink-mute); }
.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field.has-error input,
.field.has-error select { border-color: #D64545; }
.field-err {
  font-size: 12px;
  color: #D64545;
  margin-top: 6px;
  min-height: 0;
  display: none;
}
.field.has-error .field-err { display: block; }

.consent {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  margin-top: 4px;
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.5;
}
.consent input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--accent); flex-shrink: 0; }
.consent a { color: var(--accent-deep); }
.consent.has-error { color: #D64545; }

/* ----------- Order summary (sticky) ----------- */
.summary {
  position: sticky;
  top: 70px;
  background: var(--bg-card);
  border: 1.5px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
}
@media (max-width: 920px) { .summary { position: static; } }
.summary-head {
  background: var(--bg-deep);
  color: var(--on-deep);
  padding: 18px 22px;
}
.summary-head .lab {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--on-deep-mute);
}
.summary-head .prog { font-size: 17px; font-weight: 700; margin-top: 4px; }
.summary-body { padding: 20px 22px 22px; }
.summary-line {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  font-size: 14px;
  color: var(--ink-soft);
  padding: 9px 0;
  border-bottom: 1px solid var(--line-soft);
}
.summary-line .v { color: var(--ink); font-weight: 600; text-align: right; }
.summary-line .v small { display: block; font-weight: 400; color: var(--ink-mute); font-size: 12px; }

.seats {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 16px 0 4px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-soft);
}
.seats .dot { width: 8px; height: 8px; border-radius: 999px; background: var(--accent); }
.seats.is-low { color: #C2410C; font-weight: 600; }
.seats.is-low .dot { background: #EA580C; animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

.summary-total {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 16px 0 2px;
  padding-top: 16px;
  border-top: 1.5px solid var(--line);
}
.summary-total .lab { font-size: 14px; font-weight: 600; color: var(--ink); }
.summary-total .amt {
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 600;
  color: var(--ink);
}
.summary-total .amt s { font-size: 14px; color: var(--ink-mute); font-weight: 400; margin-right: 8px; }
.summary-save {
  font-size: 12.5px;
  color: var(--accent-deep);
  font-weight: 600;
  margin: 0 0 16px;
}

.pay-btn {
  width: 100%;
  border: 0;
  cursor: pointer;
  background: linear-gradient(135deg, #38D430 0%, #087802 100%);
  color: #fff;
  font-family: "Inter", var(--sans);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 16px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  transition: filter .2s, transform .15s, box-shadow .2s;
  box-shadow: 0 8px 20px -8px rgba(8,120,2,0.5);
}
.pay-btn:hover:not(:disabled) { filter: brightness(1.06); transform: translateY(-1px); }
.pay-btn:disabled { opacity: 0.55; cursor: progress; }
.pay-trust {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  margin-top: 14px;
  font-size: 12px;
  color: var(--ink-mute);
}
.pay-trust svg { color: var(--accent-deep); }
.pay-demo-flag {
  margin-top: 14px;
  background: #FFF7E6;
  border: 1px solid #F5D58A;
  color: #8A6300;
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 12px;
  line-height: 1.5;
}
.pay-demo-flag b { color: #6B4D00; }

/* ----------- Success screen ----------- */
.pay-success {
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(40px, 6vw, 72px) clamp(20px, 4vw, 40px) clamp(64px, 8vw, 96px);
  text-align: center;
}
.pay-success .tick {
  width: 64px; height: 64px;
  margin: 0 auto 22px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-deep);
  display: grid;
  place-items: center;
}
.pay-success h1 {
  font-family: var(--sans);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}
.pay-success .lede { color: var(--ink-soft); font-size: 15.5px; margin: 0 auto 28px; max-width: 50ch; line-height: 1.6; }
.pay-ref {
  display: inline-block;
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.08em;
  background: var(--bg-card);
  border: 1.5px solid var(--line);
  border-radius: 10px;
  padding: 12px 22px;
  margin-bottom: 28px;
}
.pay-ref .lab { color: var(--ink-mute); font-size: 11px; text-transform: uppercase; letter-spacing: 0.12em; display: block; margin-bottom: 4px; }
.pay-ref b { color: var(--ink); font-weight: 600; font-size: 18px; }
.pay-recap {
  text-align: left;
  background: var(--bg-card);
  border: 1.5px solid var(--line);
  border-radius: 16px;
  padding: 24px 26px;
  margin: 0 auto 24px;
}
.pay-recap h3 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink-mute); margin: 0 0 14px; font-family: var(--mono); font-weight: 500; }
.pay-recap .summary-line:last-child { border-bottom: 0; }
.pay-next {
  text-align: left;
  max-width: 520px;
  margin: 0 auto 28px;
  font-size: 14.5px;
  color: var(--ink-soft);
  line-height: 1.6;
}
.pay-next li { margin-bottom: 8px; }

/* ----------- Payment method choice ----------- */
.paymethod { display: grid; gap: 9px; margin: 4px 0 16px; }
.pm {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1.5px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  cursor: pointer;
  background: var(--bg-card);
  text-align: left;
  transition: border-color .15s, background .15s;
}
.pm:hover { border-color: var(--accent); }
.pm.is-on { border-color: var(--accent); background: var(--accent-tint); }
.pm-ic { font-size: 20px; line-height: 1; flex-shrink: 0; }
.pm-txt { display: flex; flex-direction: column; }
.pm-txt b { font-size: 14px; font-weight: 700; color: var(--ink); }
.pm-txt small { font-size: 12px; color: var(--ink-soft); margin-top: 2px; }

.pay-transfer-note {
  margin-top: 14px;
  background: var(--accent-tint);
  border: 1px solid var(--accent-soft);
  color: var(--accent-deep);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 12.5px;
  line-height: 1.5;
}

/* ----------- Bank-transfer details (success screen) ----------- */
.bank-block {
  text-align: left;
  max-width: 520px;
  margin: 0 auto 24px;
  background: var(--accent-tint);
  border: 1.5px solid var(--accent-soft);
  border-radius: 16px;
  padding: 22px 24px;
}
.bank-block h3 {
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
  font-family: var(--sans);
}
.bank-rows { display: grid; gap: 0; margin-bottom: 14px; }
.bank-rows > div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 9px 0;
  border-bottom: 1px solid rgba(63, 181, 74, 0.22);
  font-size: 14px;
}
.bank-rows > div:last-child { border-bottom: 0; }
.bank-rows span { color: var(--ink-soft); }
.bank-rows b { font-family: var(--mono); font-weight: 600; color: var(--ink); }
.bank-note { margin: 0; font-size: 13px; color: var(--ink-soft); line-height: 1.55; }