@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;0,9..40,800;1,9..40,400&display=swap');

:root {
  /* Colors — warm sand + deep teal + amber gold */
  --bg:              #F5F0E8;
  --surface:         #FDFAF5;
  --surface-raised:  #FFFFFF;
  --text:            #1A1A18;
  --text-muted:      #5A6B68;
  --text-light:      #8FA8A4;
  --primary:         #1A5F5A;
  --primary-dark:    #134540;
  --primary-light:   #E6F2F1;
  --accent:          #C8882A;
  --accent-light:    #FDF0DC;
  --border:          #DDD8CD;
  --border-strong:   #C4BEB2;

  /* Status */
  --green:           #2D7055;
  --green-bg:        #E6F0EB;
  --orange:          #A86C20;
  --orange-bg:       #F5EAD8;
  --red:             #A03838;
  --red-bg:          #F5E2E2;

  /* Shadows — teal-tinted */
  --shadow-xs:       0 1px 4px rgba(26,95,90,0.06);
  --shadow-sm:       0 2px 12px rgba(26,95,90,0.09);
  --shadow:          0 6px 24px rgba(26,95,90,0.12);
  --shadow-lg:       0 16px 48px rgba(26,95,90,0.18);

  /* Teal shine (primary buttons) */
  --teal-shine:      linear-gradient(135deg, #1F6B66 0%, #1A5F5A 60%, #207570 100%);
  --teal-shadow:     0 4px 20px rgba(26,95,90,0.32);

  /* Amber shine (accent elements) */
  --amber-shine:     linear-gradient(135deg, #D4942E 0%, #C8882A 50%, #DBA038 100%);
  --amber-shadow:    0 4px 20px rgba(200,136,42,0.30);

  /* Typography — DM Sans for body/UI; a real serif for display headings
     (trip titles, section titles) so the app has actual typographic
     contrast instead of one weight of one typeface everywhere. System
     stack — no webfont fetch needed, renders instantly. --font-script is
     a handwritten accent used sparingly (postcard/journal captions only). */
  --font-sans:       'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif:      Georgia, 'Iowan Old Style', 'Palatino Linotype', 'Times New Roman', serif;
  --font-script:     'Segoe Print', 'Bradley Hand', 'Comic Sans MS', cursive;

  /* Spacing */
  --space-xs:   4px;
  --space-sm:   10px;
  --space-md:   20px;
  --space-lg:   32px;
  --space-xl:   52px;

  /* Radii */
  --radius-sm:  4px;
  --radius:     6px;
  --radius-lg:  8px;
  --radius-xl:  12px;

  /* Nav */
  --nav-h:        64px;
  --bottom-nav-h: 72px;
  --sidebar-w:    256px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.15;
}

h1 { font-size: clamp(1.9rem, 5vw, 2.6rem); }
h2 { font-size: clamp(1.4rem, 4vw, 1.9rem); }
h3 { font-size: clamp(1.15rem, 3vw, 1.4rem); }

a { color: var(--primary); text-decoration: none; }
button { cursor: pointer; font-family: var(--font-sans); }
img { max-width: 100%; display: block; }
input, select, textarea { font-family: var(--font-sans); }

.hidden     { display: none !important; }
.text-muted { color: var(--text-muted); }
.text-sm    { font-size: 0.875rem; }
.text-xs    { font-size: 0.75rem; }

/* Page layout */
.page-body {
  padding-top: var(--nav-h);
  padding-bottom: calc(var(--bottom-nav-h) + env(safe-area-inset-bottom, 0px) + 20px);
  min-height: 100vh;
}

.page-content {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md);
}

/* Desktop layout with sidebar */
@media (min-width: 900px) {
  .page-body {
    padding-left: var(--sidebar-w);
    padding-bottom: var(--space-xl);
  }

  .page-body-form {
    padding-left: var(--sidebar-w);
  }

  .page-content {
    max-width: 1100px;
    padding: var(--space-xl) var(--space-xl);
  }

  .form-page-content {
    max-width: 720px;
    padding: var(--space-xl) var(--space-xl);
  }

  .top-nav {
    left: var(--sidebar-w);
  }

  .bottom-nav {
    display: none;
  }
}