:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --accent: #eff6ff;
  --border: #e5e7eb;
  --success: #16a34a;
  --error: #dc2626;
  --nav-bg: #0f1e3a;
  --sidebar-bg: #1697e1;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
}

/* Navigation */
.main-nav {
  background: var(--nav-bg);
  padding: 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-logo img {
  height: 40px;
  width: auto;
  display: block;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: white;
  border-radius: 3px;
  transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 8px;
  align-items: center;
}

.nav-menu li a {
  color: white;
  text-decoration: none;
  padding: 10px 18px;
  display: block;
  font-size: 15px;
  font-weight: 500;
  border-radius: 8px;
  transition: background 0.3s ease;
}

.nav-menu li a:hover {
  background: rgba(255, 255, 255, 0.1);
}

.nav-menu li a.nav-cta {
  background: #1697e1;
  color: white;
  padding: 10px 24px;
  border-radius: 8px;
  font-weight: 600;
}

.nav-menu li a.nav-cta:hover {
  background: #1280c4;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background: var(--nav-bg);
    width: 100%;
    text-align: center;
    transition: left 0.3s ease;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    padding: 20px 0;
    gap: 0;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-menu li {
    width: 100%;
  }

  .nav-menu li a {
    padding: 16px 20px;
    border-radius: 0;
  }

  .nav-menu li a.nav-cta {
    margin: 10px 20px;
    border-radius: 8px;
  }
}

.container {
  max-width: 1080px;
  margin: 40px auto;
  padding: 0 20px 60px;
}

.page-header {
  text-align: left;
  margin-bottom: 24px;
  padding: 8px 0;
}

.page-header h1 {
  margin: 0;
  font-size: 30px;
  color: var(--text);
}

.page-header p {
  margin: 6px 0 0;
  color: var(--muted);
}

.card {
  background: var(--card);
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.06);
  margin-bottom: 20px;
}

.card.subtle {
  background: #f9fafb;
  box-shadow: none;
  border: 1px solid var(--border);
}

.main-card {
  padding: 0;
  overflow: hidden;
}

.layout {
  display: grid;
  grid-template-columns: 260px 1fr;
}

.steps {
  background: var(--sidebar-bg);
  padding: 28px 24px;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  color: #e2e8f0;
}

.steps-header {
  margin-bottom: 20px;
}

.steps-title {
  display: block;
  font-weight: 700;
  color: #f8fafc;
}

.steps-sub {
  color: rgba(226, 232, 240, 0.7);
  font-size: 13px;
}

.steps ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.step-item {
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(0, 0, 0, 0.15);
  font-size: 14px;
  color: #ffffff;
}

.step-item.active {
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(0, 0, 0, 0.35);
  font-weight: 600;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.steps-help {
  margin-top: 24px;
  font-size: 12px;
  color: rgba(226, 232, 240, 0.6);
}

.content {
  padding: 32px;
}

.step-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
}

.contact-summary {
  margin-top: 12px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: #fff;
}

.contact-name {
  font-weight: 600;
  margin: 0;
}

.contact-details {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 1000;
}

.modal.open {
  display: flex;
}

.modal-content {
  background: #fff;
  border-radius: 16px;
  padding: 20px 22px;
  width: min(520px, 100%);
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.2);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.modal-header h3 {
  margin: 0;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 18px;
}

.summary-inline {
  position: static;
  min-width: 240px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.form-rows {
  display: grid;
  gap: 16px;
}

.grid-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.grid .full {
  grid-column: 1 / -1;
}

.checkbox-row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
}

.checkbox-row input {
  margin: 0;
}

label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
}

input,
select,
textarea {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text);
  background: #fff;
}

textarea {
  resize: vertical;
}

.step-panel {
  display: none;
  animation: fadeIn 0.2s ease;
}

.step-panel.active {
  display: block;
}

.muted {
  color: var(--muted);
  margin-top: 6px;
}

.funding {
  margin-top: 20px;
}

.funding .label {
  display: block;
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 10px;
}

.funding-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.funding-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 14px;
  display: flex;
  gap: 10px;
  align-items: center;
  cursor: pointer;
  background: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.funding-card:hover {
  border-color: rgba(37, 99, 235, 0.4);
  box-shadow: 0 8px 16px rgba(37, 99, 235, 0.08);
}

.funding-card input {
  accent-color: var(--primary);
}

.slots {
  margin: 12px 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.slot {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  background: #fff;
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
  width: 100%;
}

.slot.selected {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.thank-you {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: center;
}

.confirmation-card {
  background: white;
  border-radius: 20px;
  padding: 48px 40px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  text-align: center;
  max-width: 500px;
  width: 100%;
}

.confirmation-icon {
  margin: 0 auto 24px;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.confirmation-card h2 {
  margin: 0 0 8px;
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
}

.confirmation-subtitle {
  margin: 0 0 32px;
  font-size: 16px;
  color: var(--muted);
}

.confirmation-details {
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: left;
  border-top: 1px solid var(--border);
  padding-top: 24px;
}

.detail-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.detail-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--primary);
  margin-top: 2px;
}

.detail-text {
  flex: 1;
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
}

.calendar-actions {
  margin-top: 0;
  display: grid;
  gap: 10px;
  width: 100%;
  max-width: 500px;
}

.calendar-subtitle {
  margin: 0;
  font-weight: 600;
  color: var(--text);
  text-align: center;
}

.calendar-options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

@media (max-width: 600px) {
  .confirmation-card {
    padding: 32px 24px;
  }
  
  .confirmation-card h2 {
    font-size: 24px;
  }
  
  .calendar-options {
    grid-template-columns: 1fr;
  }
}

.calendar-btn {
  justify-content: flex-start;
  width: 100%;
  gap: 12px;
  border: 1px solid #e5e7eb;
  background: #f8fafc;
  color: #111827;
  border-radius: 18px;
  padding: 12px 18px;
  font-weight: 600;
  text-decoration: none;
  box-shadow: inset 0 0 0 1px #f1f5f9;
}

.calendar-btn:hover {
  transform: translateY(-1px);
  border-color: #8aa2ff;
  box-shadow: 0 10px 18px rgba(15, 23, 42, 0.08);
}

.calendar-btn:focus-visible {
  outline: none;
  border-color: #4f46e5;
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

.calendar-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 12px;
  background: #ffffff;
  border: 1px solid #e5e7eb;
}

@media (max-width: 900px) {
  .calendar-options {
    grid-template-columns: 1fr;
  }
}

.actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
}

.btn {
  border: none;
  border-radius: 999px;
  padding: 10px 20px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn.primary {
  background: var(--primary);
  color: #fff;
}

.btn.primary:hover {
  background: var(--primary-dark);
}

.btn.secondary {
  background: #fff;
  color: var(--primary);
  border: 1px solid var(--border);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

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

.status.success {
  color: var(--success);
}

.status.error {
  color: var(--error);
}

code {
  background: #eef2ff;
  padding: 2px 6px;
  border-radius: 6px;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .steps {
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 12px 16px;
  }

  .steps-header {
    display: none;
  }

  .steps ol {
    display: flex;
    gap: 6px;
    justify-content: space-between;
    counter-reset: step;
  }

  .step-item {
    flex: 1;
    text-align: center;
    font-size: 0;
    padding: 7px 0;
    border-radius: 10px;
    counter-increment: step;
    min-width: 0;
  }

  .step-item::before {
    content: counter(step);
    font-size: 12px;
    font-weight: 700;
    color: inherit;
  }

  .summary-inline {
    display: none;
  }

  .step-panel[data-step="3"] .grid-row {
    grid-template-columns: 1fr;
  }

  .calendar-panel {
    padding: 12px;
  }

  .calendar-grid {
    gap: 6px;
  }

  .calendar-day {
    padding: 7px 0;
    font-size: 12px;
  }
}

.calendar-layout {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 20px;
  margin-top: 12px;
  align-items: start;
}

.calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.calendar-header h3 {
  margin: 0;
  font-size: 18px;
}

.calendar-nav {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}

.btn.icon {
  padding: 4px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
  padding: 6px 0 2px;
}

.calendar-body {
  display: block;
}

.calendar-day {
  border: 1px solid #b7cef9;
  background: #d9e6ff;
  text-align: center;
  padding: 8px 0;
  border-radius: 8px;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
  box-shadow: 0 1px 0 rgba(37, 99, 235, 0.12);
}

.calendar-day.header {
  font-weight: 600;
  color: var(--muted);
  cursor: default;
  background: transparent;
  border: none;
  padding-left: 6px;
  text-align: left;
}

.calendar-day.empty {
  background: transparent;
  border: none;
  cursor: default;
}

.calendar-day.today {
  border-color: rgba(37, 99, 235, 0.45);
  background: #eef4ff;
}

.calendar-day.selected {
  background: #0f2b5b;
  border-color: #0f2b5b;
  color: #fff;
  box-shadow: 0 6px 14px rgba(15, 43, 91, 0.3);
}

.calendar-day:hover:not(.header):not(.empty):not(.disabled) {
  border-color: rgba(37, 99, 235, 0.6);
  background: #eff6ff;
}

.calendar-day.disabled {
  color: #b0b7c3;
  background: #f1f5f9;
  border-color: #e2e8f0;
  box-shadow: none;
  cursor: not-allowed;
}

.calendar-panel {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
}

.summary-card {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  background: #fff;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.05);
  position: sticky;
  top: 20px;
}

.summary-top {
  position: static;
  margin-bottom: 16px;
}

.summary-slots {
  position: sticky;
  top: 20px;
}

.summary-card h4 {
  margin-top: 0;
}

.summary-line {
  margin: 8px 0;
  font-size: 14px;
  color: var(--muted);
}

@media (max-width: 900px) {
  .calendar-layout {
    grid-template-columns: 1fr;
  }

  .calendar-body {
    grid-template-columns: 1fr;
  }

  .calendar-right {
    border-left: none;
    padding-left: 0;
  }
}