/* ===========================
   VrijPraten App — Shared CSS
   =========================== */

:root {
  --navy-900: #06111f;
  --navy-800: #0d1f3c;
  --navy-700: #0d1f3c;
  --navy-600: #e8eaed;
  --navy-500: #2a5fa5;
  --navy-400: #2a5fa5;
  --navy-300: #4a7fc1;
  --navy-200: #c5d5ea;
  --navy-100: #eef4fb;
  --navy-50:  #f7f8fa;

  --silver-100: #f5f6f8;
  --silver-200: #ebedf0;
  --silver-300: #dde3ec;
  --silver-400: #c5cdd8;
  --silver-500: #9aa5b4;
  --silver-600: #6b7a8f;
  --silver-700: #4a5568;
  --silver-800: #0d1f3c;

  --green-light: #e6f5ee;
  --green-dark:  #1a6e4a;
  --red-light:   #fce8e8;
  --red-dark:    #a32d2d;

  --font-sans: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'DM Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--silver-100);
  color: var(--silver-800);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
img, svg { display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
input, button, textarea, select { font-family: inherit; }

/* ===========================
   Buttons
   =========================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: background 0.15s, transform 0.1s, opacity 0.15s;
  line-height: 1.4;
  white-space: nowrap;
}

.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-primary { background: #2a5fa5; color: #ffffff; }
.btn-primary:hover:not(:disabled) { background: #1e4d8a; }

.btn-secondary { background: var(--navy-400); color: var(--navy-50); }
.btn-secondary:hover:not(:disabled) { background: var(--navy-300); }

.btn-outline {
  background: transparent;
  color: var(--silver-700);
  border: 0.5px solid var(--silver-300);
}
.btn-outline:hover:not(:disabled) { background: var(--silver-200); }

.btn-danger { background: var(--red-dark); color: #fff; }
.btn-danger:hover:not(:disabled) { background: #7a1f1f; }

.btn-full { width: 100%; }

.btn-sm { padding: 7px 14px; font-size: 13px; }

/* ===========================
   Form elements
   =========================== */
.form-group { margin-bottom: 1.2rem; }

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--silver-700);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  padding: 11px 14px;
  border: 0.5px solid var(--silver-300);
  border-radius: var(--radius-md);
  background: #ffffff;
  font-size: 14px;
  color: var(--silver-800);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-input:focus {
  border-color: var(--navy-400);
  box-shadow: 0 0 0 3px rgba(42,95,165,0.1);
}

.form-input::placeholder { color: var(--silver-400); }

.form-input.error { border-color: var(--red-dark); }

.form-hint {
  font-size: 12px;
  color: var(--silver-500);
  margin-top: 5px;
  line-height: 1.5;
}

.form-error {
  font-size: 12px;
  color: var(--red-dark);
  margin-top: 5px;
}

/* ===========================
   Alerts
   =========================== */
.alert {
  padding: 11px 14px;
  border-radius: var(--radius-md);
  font-size: 13px;
  line-height: 1.5;
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin-bottom: 1.2rem;
}

.alert-error {
  background: var(--red-light);
  color: var(--red-dark);
  border: 0.5px solid #f0b0b0;
}

.alert-success {
  background: var(--green-light);
  color: var(--green-dark);
  border: 0.5px solid #a0d8b8;
}

.alert-info {
  background: #eef4fb;
  color: var(--navy-400);
  border: 0.5px solid #c5d5ea;
}

/* ===========================
   App shell / layout
   =========================== */
.app-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  height: 100vh;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  background: #ffffff;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-right: 0.5px solid #e8eaed;
}

.sidebar-header {
  padding: 1rem;
  border-bottom: 0.5px solid #f0f2f5;
  display: flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
}

.sidebar-logo-text {
  font-size: 15px;
  font-weight: 500;
  color: #0d1f3c;
  letter-spacing: 0.06em;
}

.sidebar-body {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem 0;
}

.sidebar-section-label {
  font-size: 10px;
  font-weight: 500;
  color: #9aa5b4;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.9rem 1rem 0.3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-add-btn {
  background: none;
  border: none;
  color: #9aa5b4;
  font-size: 18px;
  cursor: pointer;
  line-height: 1;
  padding: 0 2px;
}
.sidebar-add-btn:hover { color: #2a5fa5; }

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0.55rem 1rem;
  cursor: pointer;
  border-left: 2px solid transparent;
  font-size: 13px;
  color: #374151;
  transition: background 0.1s, color 0.1s;
}

.sidebar-item:hover { background: #f5f6f8; color: #0d1f3c; }

.sidebar-item.active {
  background: #eef4fb;
  border-left-color: #2a5fa5;
  color: #0d1f3c;
}

.sidebar-item-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #dde8f5;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 500;
  color: #2a5fa5;
  flex-shrink: 0;
  position: relative;
}

.sidebar-item-avatar.group { border-radius: 7px; }

.online-dot {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #3a9e6e;
  border: 1.5px solid #ffffff;
}

.unread-badge {
  margin-left: auto;
  background: #2a5fa5;
  color: #ffffff;
  font-size: 10px;
  min-width: 17px;
  height: 17px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 0.8rem 1rem;
  border-top: 0.5px solid #f0f2f5;
  display: flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
}

.sidebar-me-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #dde8f5;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 500;
  color: #2a5fa5;
  flex-shrink: 0;
}

.sidebar-me-name {
  font-size: 13px;
  font-weight: 500;
  color: #0d1f3c;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-me-status { font-size: 11px; color: #3a9e6e; }

.sidebar-settings-btn {
  background: none;
  border: none;
  color: #9aa5b4;
  cursor: pointer;
  padding: 4px;
  border-radius: 5px;
  display: flex;
  align-items: center;
}
.sidebar-settings-btn:hover { color: #2a5fa5; background: #f5f6f8; }

/* Main area */
.main-area {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--silver-100);
}

/* Chat header */
.chat-header {
  background: #ffffff;
  border-bottom: 0.5px solid var(--silver-300);
  padding: 0.9rem 1.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.chat-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.chat-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #dde8f5;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 500;
  color: var(--navy-400);
  flex-shrink: 0;
}

.chat-contact-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--navy-700);
}

.chat-contact-status { font-size: 12px; color: #3a9e6e; }

.chat-header-actions { display: flex; gap: 8px; }

.icon-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  border: 0.5px solid var(--silver-300);
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--silver-600);
  transition: background 0.1s;
}
.icon-btn:hover { background: var(--silver-200); }

/* E2E banner */
.e2e-banner {
  background: #eef4fb;
  border-bottom: 0.5px solid #c5d5ea;
  padding: 5px 1.2rem;
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  color: var(--navy-400);
  flex-shrink: 0;
}

/* Messages area */
.messages-area {
  flex: 1;
  overflow-y: auto;
  padding: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.msg-row { display: flex; gap: 9px; align-items: flex-end; width: 100%; }
.msg-row.mine { flex-direction: row-reverse; }

.msg-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #dde8f5;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 500;
  color: var(--navy-400);
  flex-shrink: 0;
}

.bubble {
  max-width: 65%;
  width: max-content;
  padding: 9px 13px;
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.55;
  word-wrap: break-word;
  overflow-wrap: break-word;
  white-space: pre-wrap;
}

.bubble.theirs {
  background: #ffffff;
  color: var(--navy-700);
  border: 0.5px solid var(--silver-300);
  border-bottom-left-radius: 4px;
}

.bubble.mine {
  background: #2a5fa5;
  color: #ffffff;
  border-bottom-right-radius: 4px;
}

.bubble-time {
  font-size: 10px;
  margin-top: 3px;
  text-align: right;
  color: var(--silver-400);
}

.bubble.mine .bubble-time { color: rgba(255,255,255,0.65); }

.date-divider {
  text-align: center;
  font-size: 11px;
  color: var(--silver-500);
  position: relative;
  margin: 4px 0;
}

.date-divider::before, .date-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 38%;
  height: 0.5px;
  background: var(--silver-300);
}

.date-divider::before { left: 0; }
.date-divider::after { right: 0; }

/* Input area */
.input-area {
  padding: 1rem 1.2rem;
  background: #ffffff;
  border-top: 0.5px solid var(--silver-300);
  display: flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
}

.msg-input {
  flex: 1;
  padding: 9px 14px;
  border: 0.5px solid var(--silver-300);
  border-radius: 20px;
  background: var(--silver-100);
  font-size: 14px;
  color: var(--navy-700);
  outline: none;
  transition: border-color 0.15s;
  resize: none;
  max-height: 120px;
  line-height: 1.5;
}

.msg-input:focus { border-color: var(--navy-400); }
.msg-input::placeholder { color: var(--silver-400); }

.send-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #2a5fa5;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.15s;
}

.send-btn:hover { background: #1e4d8a; }
.send-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* Empty state */
.empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  color: var(--silver-500);
  text-align: center;
  padding: 2rem;
}

.empty-state-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #eef4fb;
  display: flex;
  align-items: center;
  justify-content: center;
}

.empty-state h3 { font-size: 16px; font-weight: 500; color: var(--navy-700); }
.empty-state p { font-size: 13px; line-height: 1.6; max-width: 280px; }

/* Sidebar empty state — kleinere, compactere variant voor sidebars */
.sidebar-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 1.8rem 1rem;
  text-align: center;
  color: var(--silver-500);
}
.sidebar-empty svg { color: var(--silver-400); opacity: 0.7; }
.sidebar-empty h4 {
  font-size: 14px;
  font-weight: 500;
  color: var(--navy-700);
  margin: 0;
}
.sidebar-empty p {
  font-size: 12px;
  line-height: 1.55;
  margin: 0;
  max-width: 220px;
  color: var(--silver-600);
}
.sidebar-empty .btn { margin-top: 4px; }
[data-theme="dark"] .sidebar-empty h4 { color: var(--text-primary); }
[data-theme="dark"] .sidebar-empty p { color: var(--text-secondary); }

/* Loading spinner */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--silver-300);
  border-top-color: var(--navy-400);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Toast */
/* ── Toast notifications ──
   Stack van toasts rechtsboven (desktop) of bovenaan (mobile).
   Gebruik via showToast(msg, type) — type: 'success', 'error', 'warning', 'info'
*/
.toast-container {
  position: fixed !important;
  top: 1rem !important;
  right: 1rem !important;
  bottom: auto !important;
  left: auto !important;
  z-index: 99999 !important;
  display: flex !important;
  flex-direction: column !important;
  align-items: flex-end !important;
  gap: 8px !important;
  pointer-events: none !important;
  max-width: calc(100vw - 2rem) !important;
  width: auto !important;
  transform: none !important;
  margin: 0 !important;
}

.toast {
  background: #ffffff;
  border: 0.5px solid var(--silver-300);
  border-left: 3px solid var(--silver-500);
  border-radius: var(--radius-md);
  padding: 11px 38px 11px 14px;
  font-size: 13px;
  color: var(--silver-800);
  display: flex;
  align-items: flex-start;
  gap: 9px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  transform: translateX(120%);
  transition: transform 0.3s ease, opacity 0.2s ease;
  pointer-events: auto;
  cursor: pointer;
  min-width: 240px;
  max-width: 380px;
  position: relative;
  line-height: 1.4;
  word-wrap: break-word;
}

.toast.show { transform: translateX(0); }
.toast.hiding { opacity: 0; transform: translateX(120%); }

.toast.success { border-left-color: #3fb97a; }
.toast.success .toast-icon { color: #3fb97a; }
.toast.error   { border-left-color: #e53e3e; }
.toast.error .toast-icon   { color: #e53e3e; }
.toast.warning { border-left-color: #f5b800; }
.toast.warning .toast-icon { color: #b58a00; }
.toast.info    { border-left-color: #2a5fa5; }
.toast.info .toast-icon    { color: #2a5fa5; }

.toast-icon { flex-shrink: 0; margin-top: 1px; }

.toast-close {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 22px;
  height: 22px;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--silver-500);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  font-size: 16px;
  line-height: 1;
  padding: 0;
}
.toast-close:hover { background: var(--silver-200); color: var(--silver-700); }

/* Mobile: stack bovenaan, full-width */
@media (max-width: 768px) {
  .toast-container {
    top: 0.5rem;
    right: 0.5rem;
    left: 0.5rem;
    max-width: none;
  }
  .toast { min-width: 0; max-width: none; }
}

/* Modal overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10,23,40,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 1rem;
}

.modal {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 0.5px solid var(--silver-300);
  padding: 1.8rem;
  width: 100%;
  max-width: 420px;
}

.modal-title {
  font-size: 17px;
  font-weight: 500;
  color: var(--navy-700);
  margin-bottom: 0.4rem;
}

.modal-sub {
  font-size: 13px;
  color: var(--silver-600);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 1.5rem;
}

/* Utility */
.hidden { display: none !important; }
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }

/* ===========================
   Dark Mode Theme
   =========================== */

/* Semantic color tokens used throughout */
:root {
  --bg-page:        #f7f8fa;
  --bg-sidebar:     #ffffff;
  --bg-header:      #ffffff;
  --bg-input:       #f5f6f8;
  --bg-card:        #ffffff;
  --bg-bubble-in:   #ffffff;
  --bg-hover:       #f5f6f8;
  --bg-active:      #eef4fb;
  --bg-badge:       #eef4fb;

  --border-main:    #e8eaed;
  --border-light:   #f0f2f5;
  --border-input:   #dde3ec;

  --text-primary:   #0d1f3c;
  --text-secondary: #6b7a8f;
  --text-muted:     #9aa5b4;
  --text-placeholder: #c5cdd8;

  --accent:         #2a5fa5;
  --accent-hover:   #1e4d8a;
  --accent-light:   #eef4fb;
  --accent-border:  #c5d5ea;

  --theme-transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

[data-theme="dark"] {
  --bg-page:        #0d1117;
  --bg-sidebar:     #161b22;
  --bg-header:      #161b22;
  --bg-input:       #21262d;
  --bg-card:        #161b22;
  --bg-bubble-in:   #21262d;
  --bg-hover:       #21262d;
  --bg-active:      #1c2333;
  --bg-badge:       #1c2333;

  --border-main:    #30363d;
  --border-light:   #21262d;
  --border-input:   #30363d;

  --text-primary:   #e6edf3;
  --text-secondary: #8b949e;
  --text-muted:     #484f58;
  --text-placeholder: #484f58;

  --accent:         #4a90d9;
  --accent-hover:   #2a5fa5;
  --accent-light:   #1c2333;
  --accent-border:  #30363d;

  /* silver/navy overrides for dark mode */
  --silver-100: #161b22;
  --silver-200: #21262d;
  --silver-300: #30363d;
  --silver-400: #484f58;
  --silver-500: #6e7681;
  --silver-600: #8b949e;
  --silver-700: #c9d1d9;
  --silver-800: #e6edf3;
  --navy-700:   #e6edf3;
  --navy-400:   #4a90d9;
}

/* Apply semantic tokens to components */
body { background: var(--bg-page); color: var(--text-primary); transition: var(--theme-transition); }

.sidebar { background: var(--bg-sidebar); border-right-color: var(--border-main); }
.sidebar-header { border-bottom-color: var(--border-light); }
.sidebar-logo-text { color: var(--text-primary); }
.sidebar-section-label { color: var(--text-muted); }
.sidebar-add-btn { color: var(--text-muted); }
.sidebar-add-btn:hover { color: var(--accent); }
.sidebar-item { color: var(--text-secondary); }
.sidebar-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.sidebar-item.active { background: var(--bg-active); border-left-color: var(--accent); color: var(--text-primary); }
.sidebar-item-avatar { background: var(--bg-active); color: var(--accent); }
.online-dot { border-color: var(--bg-sidebar); }
.sidebar-footer { border-top-color: var(--border-light); }
.sidebar-me-avatar { background: var(--bg-active); color: var(--accent); }
.sidebar-me-name { color: var(--text-primary); }
.sidebar-settings-btn { color: var(--text-muted); }
.sidebar-settings-btn:hover { color: var(--accent); background: var(--bg-hover); }

.main-area { background: var(--bg-page); }
.chat-header { background: var(--bg-header); border-bottom-color: var(--border-main); }
.chat-contact-name { color: var(--text-primary); }
.icon-btn { border-color: var(--border-main); color: var(--text-secondary); }
.icon-btn:hover { background: var(--bg-hover); }

.e2e-banner { background: var(--accent-light); border-bottom-color: var(--accent-border); color: var(--accent); }

.messages-area { background: var(--bg-page); }
.msg-avatar { background: var(--bg-active); color: var(--accent); }
.bubble.theirs { background: var(--bg-bubble-in); color: var(--text-primary); border-color: var(--border-main); }
.date-divider { color: var(--text-muted); }
.date-divider::before, .date-divider::after { background: var(--border-main); }

.input-area { background: var(--bg-header); border-top-color: var(--border-main); }
.msg-input { background: var(--bg-input); border-color: var(--border-input); color: var(--text-primary); }
.msg-input::placeholder { color: var(--text-placeholder); }

.empty-state { color: var(--text-muted); }
.empty-state-icon { background: var(--bg-active); }
.empty-state h3 { color: var(--text-primary); }

.toast { background: var(--bg-card); border-color: var(--border-main); color: var(--text-primary); }
.modal { background: var(--bg-card); border-color: var(--border-main); }
.modal-title { color: var(--text-primary); }
.modal-sub { color: var(--text-secondary); }

.form-input { background: var(--bg-input); border-color: var(--border-input); color: var(--text-primary); }
.form-input::placeholder { color: var(--text-placeholder); }
.form-label { color: var(--text-secondary); }
.btn-outline { color: var(--text-secondary); border-color: var(--border-main); }
.btn-outline:hover:not(:disabled) { background: var(--bg-hover); }