@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&display=swap');

:root {
  --font-display: 'Outfit', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  /* type ramp */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-display: clamp(2.5rem, 5vw + 1.5rem, 4rem);

  --leading-tight: 1.2;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  /* spacing scale */
  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  /* neutrals + chrome */
  --bg-primary: #ffffff;
  --bg-secondary: #f5f5f5;
  --bg-card: #ffffff;
  --text-primary: #111111;
  --text-secondary: #555555;
  --text-muted: #888888;
  --border-color: #e0e0e0;
  --accent: #4f46e5;
  --nav-bg: #ffffff;
  --footer-bg: #f5f5f5;
  --input-bg: #ffffff;
  --input-border: #cccccc;
  --shadow: rgba(0, 0, 0, 0.1);
  --overlay: rgba(0, 0, 0, 0.4);
  --accent-hover: #4338ca;
  --border: var(--border-color);
  --card-bg: var(--bg-card);
  --shadow-color: var(--shadow);
  /* accents + status */
  --color-primary: #4f46e5;
  --color-primary-hover: #4338ca;
  --color-primary-light: #818cf8;
  --color-primary-muted: rgba(79, 70, 229, 0.12);
  --color-accent: #06b6d4;
  --color-accent-hover: #0891b2;
  --color-accent-muted: rgba(6, 182, 212, 0.15);

  --color-surface: var(--card-bg);
  --color-surface-elevated: #ffffff;
  --color-surface-overlay: color-mix(in srgb, var(--nav-bg) 85%, transparent);
  --color-bg: var(--bg-primary);
  --color-bg-warm: var(--bg-secondary);
  --color-bg-cool: var(--bg-secondary);
  --color-bg-deep: #0f172a;

  --color-text: var(--text-primary);
  --color-text-secondary: var(--text-secondary);
  --color-text-muted: var(--text-muted);
  --color-text-inverse: #ffffff;

  --color-border: var(--border-color);
  --color-border-strong: var(--input-border);

  --color-success: #059669;
  --color-success-bg: rgba(5, 150, 105, 0.12);
  --color-error: #dc2626;
  --color-error-bg: rgba(220, 38, 38, 0.1);
  --color-warning: #d97706;
  --color-warning-bg: rgba(217, 119, 6, 0.12);
  --color-info: #0284c7;
  --color-info-bg: rgba(2, 132, 199, 0.1);
  /* corners */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-2xl: 28px;
  --radius-full: 9999px;
  /* shadows */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.08), 0 2px 4px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.12), 0 4px 8px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 24px 64px rgba(15, 23, 42, 0.14);
  --shadow-glow: 0 0 0 1px rgba(79, 70, 229, 0.2), 0 8px 24px rgba(79, 70, 229, 0.15);
  /* motion */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
}

/* dark palette */
:root[data-theme="dark"] {
  --bg-primary: #0f0f0f;
  --bg-secondary: #1a1a1a;
  --bg-card: #1e1e1e;
  --text-primary: #f0f0f0;
  --text-secondary: #aaaaaa;
  --text-muted: #666666;
  --border-color: #2e2e2e;
  --accent: #818cf8;
  --nav-bg: #111111;
  --footer-bg: #0a0a0a;
  --input-bg: #1a1a1a;
  --input-border: #333333;
  --shadow: rgba(0, 0, 0, 0.4);
  --overlay: rgba(0, 0, 0, 0.7);
  --accent-hover: #a5b4fc;
  --border: var(--border-color);
  --card-bg: var(--bg-card);
  --shadow-color: var(--shadow);

  --color-primary: var(--accent);
  --color-primary-hover: var(--accent-hover);
  --color-primary-light: #c7d2fe;
  --color-primary-muted: rgba(129, 140, 248, 0.2);
  --color-accent: #22d3ee;
  --color-accent-hover: #67e8f9;
  --color-accent-muted: rgba(34, 211, 238, 0.2);

  --color-surface: var(--card-bg);
  --color-surface-elevated: var(--bg-card);
  --color-surface-overlay: color-mix(in srgb, var(--nav-bg) 88%, transparent);
  --color-bg: var(--bg-primary);
  --color-bg-warm: var(--bg-secondary);
  --color-bg-cool: var(--bg-secondary);
  --color-bg-deep: #020617;

  --color-text: var(--text-primary);
  --color-text-secondary: var(--text-secondary);
  --color-text-muted: var(--text-muted);
  --color-text-inverse: #0f172a;

  --color-border: var(--border-color);
  --color-border-strong: var(--input-border);

  --color-success: #34d399;
  --color-success-bg: rgba(52, 211, 153, 0.15);
  --color-error: #f87171;
  --color-error-bg: rgba(248, 113, 113, 0.15);
  --color-warning: #fbbf24;
  --color-warning-bg: rgba(251, 191, 36, 0.15);
  --color-info: #38bdf8;
  --color-info-bg: rgba(56, 189, 248, 0.15);
}

/* reset */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s ease, color 0.3s ease;
}

*, *::before, *::after {
  transition: background-color 0.3s ease,
              color 0.3s ease,
              border-color 0.3s ease,
              box-shadow 0.3s ease;
}

a { color: var(--color-primary); }
a:hover { color: var(--color-primary-hover); }

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

/* layout shell */
.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main-content {
  flex: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-4);
}
@media (min-width: 768px) {
  .main-content { padding: var(--space-10) var(--space-6); }
}

/* sticky top bar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: var(--space-3) var(--space-4);
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  transition: box-shadow var(--duration-normal) var(--ease-out-quart);
}
.site-header.scrolled { box-shadow: var(--shadow-sm); }

.theme-toggle {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 20px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 16px;
}
.theme-toggle:hover {
  background: var(--bg-card);
  border-color: var(--accent);
}

.theme-icon {
  line-height: 1;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-xl);
  letter-spacing: -0.02em;
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--duration-fast), transform var(--duration-fast);
}
.logo:hover {
  color: var(--color-primary);
  transform: translateY(-1px);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex-wrap: wrap;
}
.site-nav a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  transition: color var(--duration-fast), background var(--duration-fast);
}
.site-nav a:hover {
  color: var(--color-primary);
  background: var(--color-primary-muted);
}
.site-nav a.cta {
  color: var(--color-text-inverse);
  background: var(--color-primary);
}
.site-nav a.cta:hover {
  background: var(--color-primary-hover);
  color: var(--color-text-inverse);
}

/* mobile menu btn */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  position: relative;
  transition: background var(--duration-fast), border-color var(--duration-fast);
}
.nav-toggle:hover { background: var(--color-primary-muted); border-color: var(--color-primary-light); }
.nav-toggle::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 18px;
  height: 2px;
  margin-left: -9px;
  margin-top: -1px;
  background: var(--color-text);
  box-shadow: 0 -5px 0 var(--color-text), 0 5px 0 var(--color-text);
  transition: box-shadow var(--duration-normal), transform var(--duration-normal);
}
.nav-toggle.open::before {
  box-shadow: none;
  transform: rotate(45deg);
}
.nav-toggle.open::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 18px;
  height: 2px;
  margin-left: -9px;
  margin-top: -1px;
  background: var(--color-text);
  transform: rotate(-90deg);
}

/* narrow viewport */
@media (max-width: 767px) {
  .nav-toggle { display: flex; flex-direction: column; justify-content: center; }
  .nav-toggle span::before, .nav-toggle span::after { margin: 0; }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface-overlay);
    backdrop-filter: blur(12px);
    padding: var(--space-4);
    flex-direction: column;
    align-items: stretch;
    border-bottom: 1px solid var(--color-border);
    display: none;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: var(--space-3); }
  .theme-toggle { margin-left: 0; }
}

/* footer */
.site-footer {
  padding: var(--space-8) var(--space-4);
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  background: var(--footer-bg);
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--duration-fast), box-shadow var(--duration-fast), background var(--duration-fast), color var(--duration-fast), border-color var(--duration-fast);
}
.btn:active { transform: scale(0.98); }
.btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

.btn-primary, .primary-btn {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
  border: 2px solid transparent;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-size: var(--text-sm);
}
.btn-primary:hover, .primary-btn:hover {
  background: linear-gradient(135deg, var(--color-primary-hover) 0%, var(--accent-hover) 100%);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--color-primary-light);
}

.btn-secondary, .btn-student {
  background: var(--color-surface);
  color: var(--color-text);
  border: 2px solid var(--color-border);
}
.btn-secondary:hover, .btn-student:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-muted);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
}
.btn-ghost:hover { background: var(--color-primary-muted); color: var(--color-primary); }

.btn-danger {
  background: var(--color-error);
  color: var(--color-text-inverse);
}
.btn-danger:hover {
  background: var(--color-error);
  transform: translateY(-1px);
}

.btn-sm, .btn.small { padding: var(--space-2) var(--space-3); font-size: var(--text-xs); }
.btn-lg { padding: var(--space-4) var(--space-6); font-size: var(--text-base); }
.btn-submit { background: var(--color-primary); color: var(--color-text-inverse); }
.btn-submit:hover { background: var(--color-primary-hover); }

/* cards */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  padding: var(--space-6);
  transition: box-shadow var(--duration-normal), transform var(--duration-normal), border-color var(--duration-fast);
}
.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-strong);
  transform: translateY(-2px);
}
.card-elevated {
  box-shadow: var(--shadow-md);
}
.card-glass {
  background: var(--color-surface-overlay);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
}

/* fields */
.input-group {
  position: relative;
  margin-bottom: var(--space-4);
}
.input-group label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.input-group input,
.input-group select,
.search-input {
  width: 100%;
  font-family: var(--font-body);
  font-size: var(--text-base);
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--input-border);
  border-radius: var(--radius-md);
  background: var(--input-bg);
  color: var(--color-text);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}

textarea {
  width: 100%;
  font-family: var(--font-body);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--input-bg);
  color: var(--color-text);
  padding: var(--space-3) var(--space-4);
}
textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-muted);
}
.input-group input:focus,
.input-group select:focus,
.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-muted);
}
.input-group input::placeholder { color: var(--color-text-muted); }
.input-group input:disabled { background: var(--color-bg); cursor: not-allowed; opacity: 0.8; }
.input-group.password input { padding-right: 48px; }
.input-group .eye {
  position: absolute;
  right: var(--space-3);
  top: 3.25rem;
  transform: translateY(-50%);
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity var(--duration-fast);
}
.input-group .eye:hover { opacity: 1; }

select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  padding-right: 2.5rem;
}

/* overlays */
.dropdown-menu,
[role="menu"] {
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  box-shadow: var(--shadow-md);
}

.tooltip,
[role="tooltip"] {
  background: var(--color-surface-elevated);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.modal,
[role="dialog"] {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  box-shadow: 0 20px 48px var(--shadow-color);
}

pre, code {
  background: var(--bg-secondary);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
pre { padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); overflow-x: auto; }
code { padding: 0.1rem 0.3rem; border-radius: 4px; }

/* scrollbars */
* {
  scrollbar-color: var(--color-border-strong) var(--bg-primary);
}
*::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
*::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
*::-webkit-scrollbar-thumb {
  background: var(--color-border-strong);
  border-radius: 999px;
  border: 2px solid var(--bg-primary);
}

/* flashes */
.flash-messages { margin-bottom: var(--space-4); }
.flash {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  margin-bottom: var(--space-2);
  border: 1px solid transparent;
  animation: fadeInUp 0.4s var(--ease-out-expo);
}
.flash.error { background: var(--color-error-bg); color: var(--color-error); border-color: var(--color-error); }
.flash.success { background: var(--color-success-bg); color: var(--color-success); border-color: var(--color-success); }
.flash.info { background: var(--color-info-bg); color: var(--color-info); border-color: var(--color-info); }

/* keyframes */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

/* scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo);
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}
.reveal-children > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s var(--ease-out-expo), transform 0.5s var(--ease-out-expo);
}
.reveal-children.in-view > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-children.in-view > *:nth-child(2) { transition-delay: 0.1s; }
.reveal-children.in-view > *:nth-child(3) { transition-delay: 0.15s; }
.reveal-children.in-view > *:nth-child(4) { transition-delay: 0.2s; }
.reveal-children.in-view > *:nth-child(5) { transition-delay: 0.25s; }
.reveal-children.in-view > *:nth-child(6) { transition-delay: 0.3s; }
.reveal-children.in-view > *:nth-child(7) { transition-delay: 0.35s; }
.reveal-children.in-view > *:nth-child(8) { transition-delay: 0.4s; }
.reveal-children.in-view > *:nth-child(9) { transition-delay: 0.45s; }
.reveal-children.in-view > *:nth-child(10) { transition-delay: 0.5s; }
.reveal-children.in-view > * {
  opacity: 1;
  transform: translateY(0);
}

.page-enter {
  animation: fadeInUp 0.5s var(--ease-out-expo) forwards;
}

/* map chrome */
.map-topbar {
  flex-shrink: 0;
  align-items: center;
}

.map-filters,
.map-filter-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: nowrap;
  white-space: nowrap;
  font-size: 0.85rem;
}

.map-home-main,
.map-section {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.map-container,
#map,
.map-embed-wrapper {
  flex: 1 1 auto;
  min-height: 0;
  height: 100%;
}

/* maps skip reveal hide */
.map-section .reveal,
.map-card.reveal,
.map-home-main .reveal {
  opacity: 1 !important;
  transform: none !important;
}