/* ============================================================
   CHRONOS - Design Tokens & Base Styles
   Palet: Biru-abu klinis/profesional
   ============================================================ */

:root {
  /* Warna Primer */
  --color-primary: #2C5F7C;
  --color-primary-dark: #1A3D52;
  --color-primary-light: #E8F0F5;
  --color-secondary: #6B8CAE;

  /* Warna Netral */
  --color-neutral-900: #1F2937;
  --color-neutral-700: #374151;
  --color-neutral-600: #6B7280;
  --color-neutral-400: #9CA3AF;
  --color-neutral-200: #E5E7EB;
  --color-neutral-100: #F3F4F6;
  --color-neutral-50: #F9FAFB;
  --color-neutral-0: #FFFFFF;

  /* Warna Status/Aksen */
  --color-warning: #C17817;
  --color-warning-bg: #FBF1E4;
  --color-success: #3D8B6E;
  --color-success-bg: #E9F5F0;
  --color-danger: #B3463F;
  --color-danger-bg: #FAEAE8;

  /* Badge khusus mode klinisi */
  --color-clinician: #7C5295;
  --color-clinician-bg: #F2EBF6;

  /* Tipografi */
  --font-display: 'Lora', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Ukuran Font */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.375rem;
  --text-2xl: 1.75rem;
  --text-3xl: 2.25rem;
  --text-4xl: 3rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;
  --space-10: 4rem;

  /* Border & Shadow */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(31, 41, 55, 0.06);
  --shadow-md: 0 4px 12px rgba(31, 41, 55, 0.08);
  --shadow-lg: 0 8px 24px rgba(31, 41, 55, 0.12);

  /* Transisi */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

/* ============================================================
   Reset & Base
   ============================================================ */

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

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-neutral-900);
  background-color: var(--color-neutral-50);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-primary-dark);
  margin: 0 0 var(--space-3) 0;
  line-height: 1.3;
}

h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

p { margin: 0 0 var(--space-3) 0; }

a {
  color: var(--color-primary);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

button {
  font-family: var(--font-body);
  cursor: pointer;
}

/* Fokus keyboard yang jelas untuk aksesibilitas */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

/* ============================================================
   Layout Utama
   ============================================================ */

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

.app-header {
  background-color: var(--color-primary);
  color: var(--color-neutral-0);
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-md);
}

.app-header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.app-header__brand h1 {
  color: var(--color-neutral-0);
  font-size: var(--text-xl);
  margin: 0;
}

.app-header__brand .tagline {
  font-size: var(--text-xs);
  color: var(--color-primary-light);
  opacity: 0.85;
}

.app-main {
  flex: 1;
  max-width: 1180px;
  width: 100%;
  margin: 0 auto;
  padding: var(--space-6);
}

.app-footer {
  text-align: center;
  padding: var(--space-5);
  color: var(--color-neutral-400);
  font-size: var(--text-xs);
}

/* ============================================================
   Komponen: Tombol
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-size: var(--text-sm);
  font-weight: 600;
  transition: var(--transition-fast);
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-neutral-0);
}
.btn-primary:hover {
  background-color: var(--color-primary-dark);
}

.btn-secondary {
  background-color: var(--color-neutral-0);
  color: var(--color-primary);
  border-color: var(--color-neutral-200);
}
.btn-secondary:hover {
  background-color: var(--color-neutral-100);
}

.btn-text {
  background: transparent;
  color: var(--color-primary);
  padding: var(--space-2) var(--space-3);
}
.btn-text:hover {
  background-color: var(--color-primary-light);
}

/* ============================================================
   Komponen: Kartu
   ============================================================ */

.card {
  background-color: var(--color-neutral-0);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-neutral-200);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}

/* ============================================================
   Komponen: Badge
   ============================================================ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: 999px;
  font-size: var(--text-xs);
  font-weight: 600;
}

.badge-clinician {
  background-color: var(--color-clinician-bg);
  color: var(--color-clinician);
}

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

.badge-success {
  background-color: var(--color-success-bg);
  color: var(--color-success);
}

/* ============================================================
   Komponen: Tab Navigasi (Mode Klinisi / Klien)
   ============================================================ */

.mode-tabs {
  display: flex;
  gap: var(--space-2);
  background-color: var(--color-neutral-100);
  border-radius: var(--radius-md);
  padding: var(--space-1);
  width: fit-content;
}

.mode-tab {
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-neutral-600);
  transition: var(--transition-fast);
}

.mode-tab.is-active {
  background-color: var(--color-neutral-0);
  color: var(--color-primary-dark);
  box-shadow: var(--shadow-sm);
}

.mode-tab:not(.is-active):hover {
  color: var(--color-primary);
}

/* ============================================================
   Utility
   ============================================================ */

.text-muted { color: var(--color-neutral-600); }
.text-sm { font-size: var(--text-sm); }
.text-xs { font-size: var(--text-xs); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}