/* ═══════════════════════════════════════════════════════════
   Virtualcare Nigeria — Mobile-First Design System
   ═══════════════════════════════════════════════════════════ */

/* SAFETY: All overlays hidden by default */
.mobile-drawer,
.mobile-sheet,
.slide-panel,
.bottom-sheet {
  display: none;
}

.mobile-drawer.open,
.mobile-sheet.open,
.slide-panel.open,
.bottom-sheet.open {
  display: block;
}

/* ── Design tokens (mobile base) ─────────────────────────── */
:root {
  --vc-touch-min: 44px;
  --vc-transition: 250ms ease;
  --vc-radius-lg: 16px;
  --vc-radius-pill: 999px;
  --vc-shadow-card: 0 2px 12px rgba(10, 36, 99, 0.08);
  --vc-shadow-float: 0 8px 24px rgba(10, 36, 99, 0.12);
  --vc-brand: #0066cc;
  --vc-brand-dark: #0a2463;
  --vc-surface: #ffffff;
  --vc-bg: #f8fafc;
  --vc-text-muted: #64748b;
  --vc-border: #e2e8f0;
  --vc-safe-bottom: env(safe-area-inset-bottom, 0px);
}

/* ── Mobile base (default: up to 768px) ──────────────────── */
html {
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  overflow-x: hidden;
  max-width: 100vw;
  background: var(--vc-bg);
  padding-bottom: var(--vc-safe-bottom);
}

/* Touch targets */
button,
.btn,
a.btn,
.nav-toggle,
input[type="submit"],
input[type="button"] {
  min-height: var(--vc-touch-min);
  min-width: var(--vc-touch-min);
}

/* Inputs: 16px prevents iOS zoom */
input,
select,
textarea {
  font-size: 16px;
  transition: border-color var(--vc-transition), box-shadow var(--vc-transition);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--vc-brand);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.15);
}

/* ── Navbar ──────────────────────────────────────────────── */
.site-header .nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  gap: 8px;
}

.site-header .logo {
  flex-shrink: 1;
  min-width: 0;
}

.site-header .logo-text {
  font-size: 17px;
}

.nav-auth-btns {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 8px;
  border-radius: 8px;
  transition: background var(--vc-transition);
}

.nav-toggle:active {
  background: rgba(255, 255, 255, 0.12);
}

.btn-login,
.btn-nav-outline {
  padding: 6px 12px;
  font-size: 13px;
  min-height: var(--vc-touch-min);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}

.btn-register,
.nav-auth-btns .btn-primary {
  padding: 6px 12px;
  font-size: 13px;
  min-height: var(--vc-touch-min);
  white-space: nowrap;
}

/* Backdrop hidden until opened */
.mobile-backdrop,
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  z-index: 9999;
  opacity: 0;
  transition: opacity var(--vc-transition);
}

.mobile-backdrop.open,
.nav-overlay.open {
  display: block;
  opacity: 1;
}

/* ── Hero ────────────────────────────────────────────────── */
.hero {
  padding: 32px 16px 40px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(1.75rem, 7vw, 2.25rem);
  line-height: 1.15;
  margin-bottom: 12px;
}

.hero p,
.hero .hero-sub {
  font-size: 15px;
  color: var(--vc-text-muted);
  max-width: 36ch;
  margin: 0 auto 20px;
}

.hero .btn,
.hero-cta .btn {
  width: 100%;
  max-width: 320px;
  padding: 14px 20px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--vc-radius-lg);
  transition: transform var(--vc-transition), box-shadow var(--vc-transition);
}

.hero .btn:active {
  transform: scale(0.98);
}

/* ── Cards ───────────────────────────────────────────────── */
.card,
.appt-card,
.kpi-card,
.blog-card,
.specialty-card,
.doctor-card {
  border-radius: var(--vc-radius-lg);
  box-shadow: var(--vc-shadow-card);
  margin-bottom: 12px;
  transition: box-shadow var(--vc-transition), transform var(--vc-transition);
}

.card {
  padding: 16px;
  background: var(--vc-surface);
  border: 1px solid var(--vc-border);
}

/* ── Forms ───────────────────────────────────────────────── */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--vc-brand-dark);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--vc-border);
  border-radius: 12px;
  background: var(--vc-surface);
  box-sizing: border-box;
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  padding: 12px 16px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 14px;
  transition: background var(--vc-transition), transform var(--vc-transition);
}

.btn-block,
.form-actions .btn,
.auth-form .btn-primary {
  width: 100%;
  display: block;
  text-align: center;
}

/* ── Modals / bottom sheets ──────────────────────────────── */
.modal,
.vc-modal,
.booking-modal {
  display: none;
}

.modal.open,
.modal.active,
.vc-modal.open,
.booking-modal.open {
  display: flex;
}

@media (max-width: 768px) {
  .modal-content,
  .vc-modal-content,
  .booking-modal-content,
  .modal-dialog {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    max-height: 92vh;
    border-radius: 20px 20px 0 0;
    transform: translateY(100%);
    transition: transform 300ms ease;
    overflow-y: auto;
    padding-bottom: calc(16px + var(--vc-safe-bottom));
  }

  .modal.open .modal-content,
  .modal.active .modal-content,
  .vc-modal.open .vc-modal-content,
  .booking-modal.open .booking-modal-content {
    transform: translateY(0);
  }
}

.bottom-sheet {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--vc-surface);
  border-radius: 20px 20px 0 0;
  padding: 20px 16px calc(20px + var(--vc-safe-bottom));
  box-shadow: var(--vc-shadow-float);
  z-index: 10001;
  transform: translateY(100%);
  transition: transform 300ms ease;
}

.bottom-sheet.open {
  transform: translateY(0);
}

/* ── Dashboard tabs ──────────────────────────────────────── */
.dashboard-nav {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.dashboard-nav::-webkit-scrollbar {
  display: none;
}

.dashboard-nav ul {
  display: flex;
  gap: 4px;
  padding: 0 12px;
  min-width: max-content;
}

.dashboard-nav a {
  padding: 12px 14px;
  font-size: 13px;
  white-space: nowrap;
  min-height: var(--vc-touch-min);
  display: flex;
  align-items: center;
}

/* Patient sidebar tabs on mobile */
.dash-sidebar .sidebar-nav {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  flex-direction: row;
  flex-wrap: nowrap;
  gap: 4px;
  padding: 8px 12px;
}

/* ── VirtualAI chat ──────────────────────────────────────── */
.ai-chat,
.ai-chat .chat-container {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.ai-chat .chat-container {
  height: min(60vh, 480px);
  border-radius: var(--vc-radius-lg);
}

.chat-messages,
.ai-messages,
.vc-chat-messages {
  padding: 12px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  flex: 1;
  min-height: 0;
}

.chat-input,
.chat-input-container {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px calc(8px + var(--vc-safe-bottom));
  background: var(--vc-surface);
  border-top: 1px solid var(--vc-border);
  box-sizing: border-box;
  width: 100%;
}

.chat-input input,
.ai-input,
.message-input,
input[placeholder*="symptom"],
input[placeholder*="Describe"] {
  flex: 1;
  min-width: 0;
  padding: 10px 14px;
  border-radius: var(--vc-radius-pill);
  font-size: 16px;
  border: 1.5px solid var(--vc-border);
  background: var(--vc-bg);
}

.ai-send-btn,
.chat-send-btn,
.send-btn,
.chat-input .btn-primary {
  flex-shrink: 0;
  min-width: var(--vc-touch-min);
  width: auto !important;
  max-width: 80px;
  padding: 10px 16px;
  border-radius: var(--vc-radius-pill);
  font-size: 13px;
  white-space: nowrap;
}

.chat-bubble,
.ai-message,
.user-message {
  max-width: 88%;
  padding: 10px 14px;
  font-size: 14px;
  border-radius: 14px;
  word-wrap: break-word;
}

/* ── Profile layout ──────────────────────────────────────── */
.profile-banner,
.welcome-banner,
.profile-header {
  text-align: center;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.profile-card,
.patient-profile {
  padding: 16px;
}

.badges,
.profile-badges,
.stat-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}

/* ── Bottom nav (hidden until JS initializes) ───────────── */
#mobile-bottom-nav {
  display: none;
}

#mobile-bottom-nav.is-visible {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  background: var(--vc-surface);
  border-top: 1px solid var(--vc-border);
  padding: 8px 4px calc(8px + var(--vc-safe-bottom));
  z-index: 998;
  box-shadow: 0 -4px 16px rgba(10, 36, 99, 0.06);
}

#mobile-bottom-nav a {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 6px 4px;
  text-decoration: none;
  color: var(--vc-text-muted);
  font-size: 10px;
  font-weight: 500;
  gap: 2px;
  min-height: var(--vc-touch-min);
  transition: color var(--vc-transition);
}

#mobile-bottom-nav a span:first-child {
  font-size: 20px;
  line-height: 1;
}

#mobile-bottom-nav a.active {
  color: var(--vc-brand);
  font-weight: 600;
}

body:has(#mobile-bottom-nav.is-visible) {
  padding-bottom: 72px;
}

body:has(#mobile-bottom-nav.is-visible) #mobile-home-btn {
  display: none !important;
}

/* ── Tablet (768px+) ─────────────────────────────────────── */
@media (min-width: 768px) {
  .site-header .nav-inner {
    padding: 16px 24px;
  }

  .hero {
    padding: 48px 24px 56px;
  }

  .hero .btn,
  .hero-cta .btn {
    width: auto;
    min-width: 200px;
  }

  .btn-block,
  .form-actions .btn {
    width: auto;
  }

  #mobile-bottom-nav {
    display: none !important;
  }

  body:has(#mobile-bottom-nav) {
    padding-bottom: 0;
  }
}

/* ── Desktop (1024px+) ───────────────────────────────────── */
@media (min-width: 1024px) {
  .hero {
    padding: 64px 32px 72px;
  }

  .card {
    padding: 24px;
  }

  .dashboard-nav a {
    padding: 14px 18px;
    font-size: 14px;
  }
}

/* ═══════════════════════════════════════════════════════════
   KNOWN MOBILE ISSUE FIXES
   ═══════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
  /* Prevent horizontal scroll */
  html, body { overflow-x: hidden; max-width: 100vw; }

  /* Navbar: logo left, actions right */
  .navbar,
  .site-header .nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
  }

  /* Login/Register buttons proper size */
  .btn-login, .btn-register,
  .btn-nav-outline,
  .nav-auth-btns .btn-primary {
    padding: 6px 12px;
    font-size: 13px;
  }

  /* Menu drawer proper width — slide from right */
  .nav-drawer,
  .mobile-menu,
  .mobile-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: 85%;
    max-width: 320px;
    height: 100vh;
    height: 100dvh;
    background: var(--deep-blue, #0a2463);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
    padding: 20px;
    overflow-y: auto;
    z-index: 10000;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    box-sizing: border-box;
  }

  .nav-drawer.open,
  .mobile-menu.open,
  .mobile-drawer.open {
    transform: translateX(0);
  }

  /* Drawer buttons full width */
  .nav-drawer a,
  .nav-drawer button,
  .mobile-drawer a,
  .mobile-drawer button {
    display: block;
    width: 100%;
    padding: 12px;
    margin: 4px 0;
    box-sizing: border-box;
    text-align: left;
    white-space: normal;
    word-wrap: break-word;
  }

  .drawer-auth {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-top: 16px;
  }

  .drawer-auth .drawer-btn {
    width: 100%;
    text-align: center;
  }

  /* VirtualAI chat proper layout */
  .chat-input-container {
    display: flex;
    gap: 8px;
    padding: 8px;
  }

  .chat-input {
    display: flex;
    gap: 8px;
    align-items: center;
  }

  .chat-input input,
  .ai-input {
    flex: 1;
    min-width: 0;
    padding: 10px 14px;
    border-radius: 20px;
    font-size: 16px;
  }

  .chat-send-btn,
  .ai-send-btn,
  .chat-input .btn-primary {
    flex-shrink: 0;
    width: auto !important;
    min-width: 44px;
    padding: 10px 14px;
    border-radius: 20px;
  }

  /* Bottom nav */
  #mobile-bottom-nav.is-visible {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    background: #fff;
    border-top: 1px solid #e2e8f0;
    padding: 8px 4px calc(8px + env(safe-area-inset-bottom));
    z-index: 998;
  }

  #mobile-bottom-nav a {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 6px 4px;
    text-decoration: none;
    color: #64748b;
    font-size: 10px;
    gap: 2px;
  }

  #mobile-bottom-nav a span:first-child { font-size: 20px; }
  #mobile-bottom-nav a.active { color: #0066cc; }

  /* Add padding to body when bottom nav present */
  body:has(#mobile-bottom-nav.is-visible) { padding-bottom: 70px; }

  /* Dashboard content spacing */
  .dash-content,
  #app main,
  #app .dashboard-layout {
    padding-left: 12px;
    padding-right: 12px;
  }

  /* KPI grid stacks on mobile */
  .kpi-grid,
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
}

/* ── Extra small screens ─────────────────────────────────── */
@media (max-width: 380px) {
  .nav-auth-btns .btn-nav-outline,
  .nav-auth-btns .btn-primary {
    padding: 5px 8px;
    font-size: 11px;
  }

  #mobile-bottom-nav a {
    font-size: 9px;
  }

  .ai-send-btn,
  .chat-send-btn {
    min-width: 50px;
    padding: 8px 12px;
    font-size: 12px;
  }
}