@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --primary: #0f766e;
  --primary-dark: #115e59;
  --accent: #d97706;
  --background: #f5f7f6;
  --surface: #ffffff;
  --surface-muted: #edf4f2;
  --text: #17201e;
  --text-muted: #65736f;
  --border: #d9e3df;
  --danger: #b42318;
  --success: #16764f;
  --shadow: 0 22px 60px rgba(23, 32, 30, 0.1);
  --shadow-soft: 0 10px 30px rgba(23, 32, 30, 0.07);
  --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(237, 244, 242, 0.72), rgba(245, 247, 246, 0) 420px),
    var(--background);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.5;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

button,
input,
select {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem clamp(1rem, 4vw, 4rem);
  background: rgba(255, 255, 255, 0.86);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 8px 28px rgba(23, 32, 30, 0.05);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--primary-dark);
  font-size: 1.4rem;
  font-weight: 900;
}

.brand::before {
  content: "";
  width: 0.78rem;
  height: 0.78rem;
  border-radius: 3px;
  background: var(--accent);
  box-shadow: 0 0 0 5px rgba(217, 119, 6, 0.13);
}

.nav-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.45rem;
  color: var(--text-muted);
  font-weight: 700;
}

.nav-links a {
  border-radius: 999px;
  padding: 0.48rem 0.7rem;
}

.nav-links a:not(.button):hover {
  background: var(--surface-muted);
  color: var(--primary);
}

.nav-links a[aria-current="page"] {
  color: var(--primary);
  background: var(--surface-muted);
  font-weight: 800;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0.75rem 1.15rem;
  border: 1px solid var(--primary);
  border-radius: 8px;
  background: var(--primary);
  color: #ffffff;
  cursor: pointer;
  font-weight: 850;
  text-align: center;
  box-shadow: 0 10px 24px rgba(15, 118, 110, 0.18);
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.button:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  box-shadow: 0 14px 30px rgba(17, 94, 89, 0.22);
  transform: translateY(-1px);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.65;
  transform: none;
}

.button-secondary {
  background: var(--surface);
  color: var(--primary-dark);
  box-shadow: var(--shadow-soft);
}

.button-secondary:hover {
  background: var(--surface-muted);
  color: var(--primary-dark);
  box-shadow: var(--shadow-soft);
}

.button-ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border);
  box-shadow: none;
}

.button-small {
  min-height: 2.4rem;
  padding: 0.45rem 0.8rem;
}

.button-full {
  width: 100%;
}

/* Hero & Content Keyframe Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes kenBurns {
  0% {
    transform: scale(1.02) translate(0, 0);
  }
  50% {
    transform: scale(1.08) translate(-0.5%, 0.5%);
  }
  100% {
    transform: scale(1.02) translate(0, 0);
  }
}

.hero {
  position: relative;
  min-height: calc(100vh - 68px);
  display: grid;
  align-items: center;
  padding: clamp(3rem, 8vw, 6.5rem);
  color: #ffffff;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(9, 48, 45, 0.95) 0%, rgba(15, 118, 110, 0.75) 50%, rgba(23, 32, 30, 0.45) 100%),
    url("https://images.unsplash.com/photo-1497366754035-f200968a6e72?auto=format&fit=crop&w=1800&q=80") center/cover;
  z-index: 0;
  animation: kenBurns 24s ease-in-out infinite alternate;
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 34%;
  background: linear-gradient(180deg, rgba(245, 247, 246, 0), var(--background));
  pointer-events: none;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  padding-bottom: clamp(1rem, 4vw, 2.5rem);
}

.hero h1 {
  margin: 0;
  font-size: clamp(3.5rem, 9.5vw, 6.8rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  font-weight: 800;
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.1s both;
}

.hero-copy {
  max-width: 650px;
  margin: 1.6rem 0 0;
  color: rgba(255, 255, 255, 0.96);
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
  line-height: 1.6;
  font-weight: 400;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
  text-wrap: balance;
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.2rem;
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.3s both;
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #f8c16b;
  font-weight: 600;
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.section,
.page-shell {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 5.25rem) 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 1.5rem;
}

.section-heading.compact {
  margin-bottom: 1rem;
}

.section-heading h1,
.section-heading h2,
.cta-band h2 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: 0;
  text-wrap: balance;
}

.section-heading p:not(.eyebrow) {
  color: var(--text-muted);
  margin: 0.8rem 0 0;
}

.feature-grid,
.slot-grid,
.booking-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.1rem;
}

.feature-card,
.slot-card,
.booking-card,
.auth-panel,
.booking-panel,
.empty-state {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.feature-card,
.slot-card,
.booking-card,
.empty-state {
  padding: 1.25rem;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.feature-card:hover,
.slot-card:hover,
.booking-card:hover {
  border-color: rgba(15, 118, 110, 0.28);
  box-shadow: 0 26px 68px rgba(23, 32, 30, 0.13);
  transform: translateY(-3px);
}

.feature-card h3,
.slot-card h3,
.booking-card h3 {
  margin: 0.6rem 0 0.4rem;
  font-size: 1.15rem;
  line-height: 1.25;
}

.feature-card p,
.slot-card p,
.booking-card p,
.empty-state p {
  margin: 0.25rem 0;
  color: var(--text-muted);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 8px;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  color: var(--primary-dark);
  font-weight: 900;
}

.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: clamp(2rem, 5vw, 4rem) clamp(1rem, 4vw, 4rem);
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.92), rgba(23, 32, 30, 0.98)),
    url("https://images.unsplash.com/photo-1554224155-6726b3ff858f?auto=format&fit=crop&w=1600&q=80") center/cover;
  color: #ffffff;
}

.cta-band .eyebrow {
  color: var(--accent);
}

.auth-shell,
.form-page {
  display: grid;
  place-items: start center;
  min-height: calc(100vh - 80px);
}

.auth-panel,
.booking-panel {
  width: min(100%, 480px);
  padding: clamp(1.25rem, 4vw, 1.8rem);
}

.form-stack {
  display: grid;
  gap: 0.8rem;
}

.form-stack label {
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 850;
}

.form-stack input,
.form-stack select {
  width: 100%;
  min-height: 2.9rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #ffffff;
  color: var(--text);
}

.form-stack input:focus,
.form-stack select:focus {
  outline: 3px solid rgba(13, 124, 102, 0.16);
  border-color: var(--primary);
}

.tab-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 1.15rem;
  padding: 0.35rem;
  border-radius: 8px;
  background: var(--surface-muted);
}

.tab-button {
  min-height: 2.6rem;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-weight: 850;
}

.tab-button.active {
  background: var(--surface);
  color: var(--primary-dark);
  box-shadow: 0 8px 24px rgba(23, 33, 31, 0.08);
}

.divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1rem 0;
  color: var(--text-muted);
}

.divider::before,
.divider::after {
  content: "";
  height: 1px;
  flex: 1;
  background: var(--border);
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1.5rem 0 1.2rem;
  padding: 0.9rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.74);
  box-shadow: var(--shadow-soft);
}

.status-message {
  min-height: 1.5rem;
  margin: 0.6rem 0 0;
  color: var(--text-muted);
  font-weight: 700;
}

.toolbar .status-message {
  margin: 0;
}

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

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

.slot-card,
.booking-card {
  display: grid;
  gap: 0.75rem;
  align-content: space-between;
}

.slot-meta,
.booking-meta {
  display: grid;
  gap: 0.35rem;
  padding: 0.85rem;
  border-radius: 8px;
  background: var(--surface-muted);
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
}

.empty-state h3 {
  margin: 0;
}

.hidden {
  display: none;
}

/* ── User Profile Section ───────────────────────────────────── */
.user-profile {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  flex-wrap: wrap;
}

.profile-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: var(--primary);
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(15, 118, 110, 0.3);
}

.profile-info {
  flex: 1;
  min-width: 0;
}

.profile-name {
  margin: 0;
  font-size: 1rem;
  font-weight: 800;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.profile-email {
  margin: 0.1rem 0 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#profile-logout {
  margin-left: auto;
}

@media (max-width: 720px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    width: 100%;
    justify-content: flex-start;
  }

  .hero {
    min-height: 76vh;
    padding: 2rem 1rem 3rem;
  }

  .cta-band {
    align-items: flex-start;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .toolbar {
    align-items: stretch;
  }
}