/* ============================================================
   FreeDash Direct — Design System
   Clean, minimal, trustworthy. Inspired by Perplexity / Linear / Notion.
   ============================================================ */

/* ---- Tokens ---- */
:root {
  /* Type Scale — tighter, more refined */
  --text-xs: 0.75rem;          /* 12px */
  --text-sm: 0.875rem;         /* 14px */
  --text-base: 1rem;           /* 16px */
  --text-md: 1.0625rem;        /* 17px */
  --text-lg: 1.25rem;          /* 20px */
  --text-xl: 1.5rem;           /* 24px */
  --text-2xl: 2rem;            /* 32px */
  --text-3xl: 2.5rem;          /* 40px */
  --text-hero: clamp(2.25rem, 1.75rem + 2.5vw, 3.5rem); /* 36–56px */

  /* Spacing */
  --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;
  --space-32: 8rem;

  /* Surfaces */
  --color-bg: #ffffff;
  --color-surface: #ffffff;
  --color-surface-2: #f7f7f8;
  --color-surface-offset: #fafafa;
  --color-divider: #eeeeee;
  --color-border: #e5e5e5;
  --color-border-strong: #d4d4d4;

  /* Text */
  --color-text: #111111;
  --color-text-strong: #000000;
  --color-text-muted: #6b6b6b;
  --color-text-faint: #9a9a9a;
  --color-text-inverse: #ffffff;

  /* Primary — deep charcoal, not green */
  --color-primary: #111111;
  --color-primary-hover: #000000;
  --color-primary-active: #1a1a1a;

  /* Accent green — used sparingly */
  --color-accent: #16a34a;
  --color-accent-hover: #15803d;
  --color-accent-bg: #f0fdf4;
  --color-accent-border: #bbf7d0;

  /* Status */
  --color-warning: #b45309;
  --color-warning-bg: #fffbeb;
  --color-warning-border: #fde68a;
  --color-error: #b91c1c;
  --color-error-bg: #fef2f2;
  --color-error-border: #fecaca;
  --color-info: #1d4ed8;
  --color-info-bg: #eff6ff;
  --color-info-border: #bfdbfe;
  --color-success: #15803d;
  --color-success-bg: #f0fdf4;
  --color-success-border: #bbf7d0;

  /* Radius — subtle, modern */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-2xl: 16px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 120ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-medium: 200ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows — extremely subtle */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 2px 6px rgba(0, 0, 0, 0.06), 0 4px 12px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 880px;
  --content-wide: 1120px;

  /* Fonts — Inter only */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, system-ui, sans-serif;
  --font-mono: 'SF Mono', ui-monospace, Menlo, Monaco, Consolas, monospace;
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  min-height: 100dvh;
  line-height: 1.55;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 400;
  color: var(--color-text);
  background-color: var(--color-bg);
  letter-spacing: -0.005em;
}

img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
ul[role='list'], ol[role='list'] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4, h5, h6 {
  text-wrap: balance;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

h1 { font-weight: 700; letter-spacing: -0.03em; }

p, li, figcaption { text-wrap: pretty; max-width: 68ch; }

a { color: inherit; }

::selection {
  background: #111;
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--color-text);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

@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;
  }
}

a, button, [role='button'], input, textarea, select {
  transition: color var(--transition-fast), background var(--transition-fast),
    border-color var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
}

button { cursor: pointer; background: none; border: none; color: inherit; }
table { border-collapse: collapse; width: 100%; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border-width: 0;
}

/* ---- Utilities ---- */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.container--narrow {
  max-width: var(--content-default);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--text-sm);
  padding: 0.55rem 1rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  line-height: 1;
  letter-spacing: -0.005em;
}

.btn--primary {
  background: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

.btn--secondary {
  background: #fff;
  color: var(--color-text);
  border-color: var(--color-border-strong);
}
.btn--secondary:hover {
  border-color: var(--color-text);
  background: var(--color-surface-2);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
}
.btn--ghost:hover {
  background: var(--color-surface-2);
  color: var(--color-text);
}

.btn--accent {
  background: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
}
.btn--accent:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.btn--lg {
  padding: 0.8rem 1.4rem;
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
}

.btn--sm {
  padding: 0.4rem 0.75rem;
  font-size: var(--text-xs);
  font-weight: 500;
}

.btn--danger {
  background: #fff;
  color: var(--color-error);
  border-color: var(--color-error-border);
}
.btn--danger:hover {
  background: var(--color-error-bg);
  border-color: var(--color-error);
}

.btn--full {
  width: 100%;
}

/* ---- Cards ---- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

/* ---- Forms ---- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--text-sm);
  color: var(--color-text);
  letter-spacing: -0.005em;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.4;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-text);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.06);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-faint);
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
  line-height: 1.5;
}

/* ---- Badges ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  white-space: nowrap;
  letter-spacing: 0;
  border: 1px solid transparent;
}

.badge--waiting {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border-color: var(--color-warning-border);
}
.badge--assigned {
  background: var(--color-info-bg);
  color: var(--color-info);
  border-color: var(--color-info-border);
}
.badge--transit {
  background: var(--color-accent-bg);
  color: var(--color-accent);
  border-color: var(--color-accent-border);
}
.badge--delivered {
  background: var(--color-success-bg);
  color: var(--color-success);
  border-color: var(--color-success-border);
}
.badge--cancelled {
  background: var(--color-surface-2);
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

/* ---- Tabs ---- */
.tabs {
  display: flex;
  gap: var(--space-6);
  border-bottom: 1px solid var(--color-border);
  overflow-x: auto;
}

.tab-btn {
  padding: 0.75rem 0;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  margin-bottom: -1px;
}

.tab-btn:hover {
  color: var(--color-text);
}

.tab-btn.active {
  color: var(--color-text);
  border-bottom-color: var(--color-text);
  font-weight: 600;
}

/* ---- App Header ---- */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.app-header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
}

.app-header__title {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--text-base);
  letter-spacing: -0.01em;
}

.app-header__subtitle {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 400;
  margin-top: 1px;
}

.app-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* ---- Empty State ---- */
.empty-state {
  text-align: center;
  padding: var(--space-16) var(--space-6);
  color: var(--color-text-muted);
}

.empty-state svg {
  margin: 0 auto var(--space-4);
  opacity: 0.3;
  color: var(--color-text-faint);
}

.empty-state h3 {
  font-size: var(--text-md);
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.empty-state p {
  font-size: var(--text-sm);
  max-width: 360px;
  margin: 0 auto;
}

/* ---- Modal / Overlay ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(17, 17, 17, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-medium), visibility var(--transition-medium);
  backdrop-filter: blur(4px);
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  transform: translateY(8px) scale(0.99);
  transition: transform var(--transition-medium);
}

.modal-overlay.open .modal {
  transform: translateY(0) scale(1);
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
}

.modal__title {
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.modal__close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-size: 20px;
  line-height: 1;
}

.modal__close:hover {
  background: var(--color-surface-2);
  color: var(--color-text);
}

/* ---- Stats grid ---- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-3);
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  box-shadow: var(--shadow-xs);
}

.stat-card__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: var(--space-2);
  letter-spacing: 0;
}

.stat-card__value {
  font-family: var(--font-sans);
  font-size: 1.625rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.stat-card__value--green {
  color: var(--color-accent);
}

.stat-card--accent {
  background: var(--color-accent-bg);
  border-color: var(--color-accent-border);
}

/* ---- Order card (shared) ---- */
.order-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  box-shadow: var(--shadow-xs);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.order-card:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-sm);
}

.order-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.order-card__id {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.order-card__time {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: 2px;
}

.order-card__detail {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.4;
}

.order-card__detail svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-text-faint);
}

.order-card__detail strong {
  color: var(--color-text);
  font-weight: 500;
}

.order-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-divider);
  font-size: var(--text-sm);
}

.order-card__tip {
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--color-accent);
}

/* ---- Section spacing ---- */
.section {
  padding-block: clamp(var(--space-16), 7vw, var(--space-24));
}

.section-tight {
  padding-block: var(--space-12);
}

/* ---- Toast ---- */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.toast {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  color: #fff;
  background: var(--color-text);
  box-shadow: var(--shadow-lg);
  transform: translateY(16px);
  opacity: 0;
  transition: transform var(--transition-medium), opacity var(--transition-medium);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast--error {
  background: var(--color-error);
}

.toast--warning {
  background: var(--color-warning);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .container {
    padding-inline: var(--space-4);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .modal {
    padding: var(--space-6);
    margin: var(--space-4);
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}