/* ============================================================
   Pfleasy – Design System
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700&display=swap');

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Primary – Dark Blue */
  --clr-primary-900: #0c1e35;
  --clr-primary-800: #132d4f;
  --clr-primary-700: #1a3c6a;
  --clr-primary-600: #1e4d8a;
  --clr-primary-500: #1e3a5f;
  --clr-primary: #1e3a5f;

  /* Accent – Orange */
  --clr-accent-600: #c45e10;
  --clr-accent-500: #e8722a;
  --clr-accent-400: #f2943b;
  --clr-accent: #e8722a;

  /* Neutrals */
  --clr-white: #ffffff;
  --clr-gray-50: #f8f9fb;
  --clr-gray-100: #f1f3f5;
  --clr-gray-200: #e2e6ea;
  --clr-gray-300: #cdd3da;
  --clr-gray-400: #a0aab4;
  --clr-gray-500: #6b7b8d;
  --clr-gray-600: #4a5568;
  --clr-gray-700: #374151;
  --clr-gray-800: #1f2937;
  --clr-gray-900: #111827;
  --clr-text: #1a202c;
  --clr-text-secondary: #4a5568;
  --clr-text-muted: #6b7b8d;

  /* Semantic */
  --clr-success: #16a34a;
  --clr-success-light: #dcfce7;
  --clr-danger: #dc2626;
  --clr-danger-light: #fee2e2;
  --clr-warning: #f59e0b;
  --clr-warning-light: #fef3c7;
  --clr-info: #2563eb;
  --clr-info-light: #dbeafe;

  /* Surfaces */
  --bg-page: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f8f9fb;
  --bg-sidebar: #f8f9fb;
  --bg-input: #ffffff;
  --bg-overlay: rgba(17, 24, 39, 0.45);

  /* Borders */
  --border-color: #e2e6ea;
  --border-radius-sm: 6px;
  --border-radius: 10px;
  --border-radius-lg: 14px;
  --border-radius-xl: 20px;
  --border-radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.05), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 24px rgba(0,0,0,0.08), 0 4px 8px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 40px rgba(0,0,0,0.10);
  --shadow-card: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-card-hover: 0 8px 24px rgba(0,0,0,0.10);

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', monospace;

  --fs-xs: 0.75rem;    /* 12px */
  --fs-sm: 0.8125rem;  /* 13px */
  --fs-base: 0.9375rem;/* 15px */
  --fs-md: 1rem;       /* 16px */
  --fs-lg: 1.125rem;   /* 18px */
  --fs-xl: 1.3125rem;  /* 21px */
  --fs-2xl: 1.625rem;  /* 26px */
  --fs-3xl: 2rem;      /* 32px */
  --fs-4xl: 2.5rem;    /* 40px */

  --fw-light: 300;
  --fw-normal: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-extrabold: 800;

  --lh-tight: 1.2;
  --lh-normal: 1.5;
  --lh-relaxed: 1.7;

  /* 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;

  /* Layout */
  --container-max: 1200px;
  --sidebar-width: 260px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-spring: 350ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: var(--fw-normal);
  line-height: var(--lh-normal);
  color: var(--clr-text);
  background-color: var(--bg-page);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg, video {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  color: var(--clr-gray-900);
}

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

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

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

.grid {
  display: grid;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Text Utilities ---------- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-xs { font-size: var(--fs-xs); }
.text-sm { font-size: var(--fs-sm); }
.text-base { font-size: var(--fs-base); }
.text-md { font-size: var(--fs-md); }
.text-lg { font-size: var(--fs-lg); }
.text-xl { font-size: var(--fs-xl); }
.text-2xl { font-size: var(--fs-2xl); }
.text-3xl { font-size: var(--fs-3xl); }
.text-muted { color: var(--clr-text-muted); }
.text-secondary { color: var(--clr-text-secondary); }
.text-primary { color: var(--clr-primary); }
.text-accent { color: var(--clr-accent); }
.text-success { color: var(--clr-success); }
.text-danger { color: var(--clr-danger); }
.font-medium { font-weight: var(--fw-medium); }
.font-semibold { font-weight: var(--fw-semibold); }
.font-bold { font-weight: var(--fw-bold); }

/* ---------- Spacing Utilities ---------- */
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }
.px-4 { padding-inline: var(--space-4); }
.px-6 { padding-inline: var(--space-6); }
.py-2 { padding-block: var(--space-2); }
.py-3 { padding-block: var(--space-3); }
.py-4 { padding-block: var(--space-4); }

/* ---------- Display & Misc ---------- */
.hidden { display: none !important; }
.block { display: block; }
.inline-block { display: inline-block; }
.relative { position: relative; }
.absolute { position: absolute; }
.overflow-hidden { overflow: hidden; }
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.w-full { width: 100%; }
.h-full { height: 100%; }

/* ---------- Animations ---------- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-16px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(24px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-24px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-6px); }
  40%, 80% { transform: translateX(6px); }
}
@keyframes confetti-fall {
  0% { transform: translateY(-100%) rotate(0deg); opacity: 1; }
  100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}

.anim-fade-in { animation: fadeIn var(--transition-base) both; }
.anim-fade-in-up { animation: fadeInUp var(--transition-slow) both; }
.anim-slide-in-right { animation: slideInRight var(--transition-slow) both; }
.anim-scale-in { animation: scaleIn var(--transition-spring) both; }

/* ---------- View Transition ---------- */
.view {
  display: none;
  animation: fadeInUp 0.35s ease both;
}
.view.active {
  display: block;
}

/* ---------- App Layout ---------- */
#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-header {
  background: var(--clr-primary);
  color: var(--clr-white);
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(30, 58, 95, 0.15);
}

.app-header__logo {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--clr-white);
}

.app-header__logo svg {
  width: 32px;
  height: 32px;
}

.app-header__user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--fs-sm);
}

.app-header__user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--border-radius-full);
  background: rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--fw-bold);
  font-size: var(--fs-sm);
}

.app-header__logout {
  color: rgba(255,255,255,0.8);
  font-size: var(--fs-sm);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--border-radius-sm);
  transition: var(--transition-fast);
}

.app-header__logout:hover {
  background: rgba(255,255,255,0.15);
  color: var(--clr-white);
}

.app-main {
  flex: 1;
  padding: var(--space-8) var(--space-6);
  max-width: var(--container-max);
  width: 100%;
  margin-inline: auto;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

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

.breadcrumb__link {
  color: var(--clr-primary);
  transition: var(--transition-fast);
  font-weight: var(--fw-medium);
}

.breadcrumb__link:hover {
  color: var(--clr-accent);
  text-decoration: underline;
}

.breadcrumb__separator {
  color: var(--clr-gray-300);
  font-size: var(--fs-xs);
}

.breadcrumb__current {
  color: var(--clr-text);
  font-weight: var(--fw-semibold);
}

/* ---------- Page Title ---------- */
.page-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.page-title h1,
.page-title h2 {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.page-title__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-primary);
  color: var(--clr-white);
  border-radius: var(--border-radius);
  font-size: var(--fs-lg);
}

.page-title__icon--outline {
  background: transparent;
  color: var(--clr-primary);
  border: 2px solid var(--clr-primary);
}

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

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--clr-gray-100);
}
::-webkit-scrollbar-thumb {
  background: var(--clr-gray-300);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--clr-gray-400);
}

/* ---------- Selection ---------- */
::selection {
  background: var(--clr-primary);
  color: var(--clr-white);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }

  .resident-feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .resident-feature-grid .feature-card,
  .resident-feature-grid .feature-card:nth-child(1),
  .resident-feature-grid .feature-card:nth-child(2),
  .resident-feature-grid .feature-card:nth-child(3),
  .resident-feature-grid .feature-card:nth-child(4),
  .resident-feature-grid .feature-card:nth-child(5) {
    grid-column: auto;
  }

  .protocol-type-grid,
  .protocol-picker__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  :root {
    --fs-3xl: 1.75rem;
    --fs-2xl: 1.375rem;
    --fs-xl: 1.125rem;
  }

  .app-main {
    padding: var(--space-5) var(--space-4);
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .resident-feature-grid {
    grid-template-columns: 1fr;
  }

  .resident-feature-grid .feature-card,
  .resident-feature-grid .feature-card:nth-child(1),
  .resident-feature-grid .feature-card:nth-child(2),
  .resident-feature-grid .feature-card:nth-child(3),
  .resident-feature-grid .feature-card:nth-child(4),
  .resident-feature-grid .feature-card:nth-child(5) {
    grid-column: auto;
  }

  .personal-data-grid,
  .personal-data-form,
  .protocol-item {
    grid-template-columns: 1fr;
  }

  .personal-data-document {
    align-items: flex-start;
    flex-direction: column;
  }

  .protocol-type-grid,
  .protocol-picker__grid {
    grid-template-columns: 1fr;
  }

  .page-title {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-title__actions {
    width: 100%;
    justify-content: space-between;
  }

}

@media (max-width: 480px) {
  .app-header {
    padding: var(--space-3) var(--space-4);
  }

  .app-main {
    padding: var(--space-4) var(--space-3);
  }
}