@import "tailwindcss";

@theme {
  --color-brand-25: #EFF8FF;
  --color-brand-50: #F5FAFF;
  --color-brand-100: #D1E9FF;
  --color-brand-200: #B2DDFF;
  --color-brand-300: #84CAFF;
  --color-brand-400: #53B1FD;
  --color-brand-500: #2E90FA;
  --color-brand-600: #1570EF;
  --color-brand-700: #175CD3;
  --color-brand-800: #1849A9;
  --color-brand-900: #194185;
  /* Flash delivery accent — consistent with user-ui */
  --color-flash-25: #FFF5F6;
  --color-flash-50: #FFE8EA;
  --color-flash-100: #FFD1D6;
  --color-flash-200: #FFA3AE;
  --color-flash-300: #FF7585;
  --color-flash-400: #F81260;
  --color-flash-500: #E11D48;
  --color-flash-600: #C40E50;
  --color-flash-700: #9E0A3F;

  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body,
#app {
  min-height: 100%;
}

body {
  margin: 0;
  background-color: #f9fafb;
  color: #111827;
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Safe area padding for mobile devices */
.pb-safe {
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

/* Hide scrollbar but allow scrolling */
.scrollbar-hide {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.scrollbar-hide::-webkit-scrollbar {
  display: none;
}

/* Line clamp utilities */
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Focus rings — architecture, not decoration */
:focus-visible {
  outline: 2px solid var(--color-brand-600);
  outline-offset: 2px;
  border-radius: 4px;
}

/* App shell — full-height flex column for content; sidebar rail at md+.
   Sticky topbar/search live inside .shell-main so they can stick against
   the viewport while scrolling. */
.shell-grid {
  min-height: 100vh;
  display: grid;
  grid-template-areas: "main";
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr);
}

@media (min-width: 768px) {
  .shell-grid {
    grid-template-areas: "sidebar main";
    grid-template-columns: 20vw minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr);
  }
}

.shell-sidebar {
  grid-area: sidebar;
}

/* Flex column so sticky header elements are bounded by the full column,
   not a fixed grid row. */
.shell-main {
  grid-area: main;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.shell-topbar {
  flex-shrink: 0;
}

.shell-content {
  flex: 1;
  min-width: 0;
}

/* Typography scale — display */
.display-1 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.display-2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  font-weight: 800;
}

/* Rule under section titles — flat, editorial */
.section-rule {
  border-bottom: 1px solid #e5e7eb;
  padding-bottom: 1rem;
}

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