/* ======================================================================
   PREMIUM MULTI-CHANNEL INBOX UI v2.0 — Production-Ready CSS
   ======================================================================

   NASIL ENTEGRE EDERİM
   =====================
   1. Bu dosyayı projenizin CSS klasörüne kopyalayın (ör: /css/premium-inbox.css)
   2. Mevcut eski CSS dosyanızı TAMAMEN bu dosya ile DEĞİŞTİRİN.
      Üzerine eklemeyin — bu dosya tüm stilleri içerir.
   3. Her HTML sayfanızda <head> içine ekleyin:
      <link rel="stylesheet" href="css/premium-inbox.css">
   4. Sayfa class'ları zaten mevcut olmalı:
      - dashboard.html → <body class="panel-page dashboard-page">
      - whatsapp.html  → <body class="panel-page whatsapp-page">
      - instagram.html → <body class="panel-page instagram-page">
      - facebook.html  → <body class="panel-page facebook-page">
      - mail.html      → <body class="panel-page mail-page">
   5. Opsiyonel: body[data-channel="whatsapp"] gibi data attribute
      kullanıyorsanız, bu CSS onu da destekler (fallback olarak
      sayfa class'ına bakar).
   6. HTML/JS dosyalarınızda HİÇBİR değişiklik gerekmez.

   Yapı:
   §1  Global tokens + reset
   §2  Buttons
   §3  App layout (sidebar, topbar, content, list, detail)
   §4  Components (thread item, bubble, reply, badges, dropdown, etc.)
   §5  Channel themes (WhatsApp, Instagram, Facebook/Messenger, Gmail)
   §6  Login page
   §7  Responsive (tablet + mobile)
   §8  Utilities & accessibility
====================================================================== */


/* ======================================================================
   §1  GLOBAL DESIGN TOKENS + RESET
====================================================================== */
:root {
  /* ── Font stacks ── */
  --font: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji",
    "Segoe UI Emoji";
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;

  /* ── App layout ── */
  --sidebar-width: clamp(240px, 22vw, 300px);
  --list-width: clamp(300px, 26vw, 380px);
  --topbar-height: 60px;

  /* ── Fluid spacing scale ── */
  --s1: clamp(6px, 0.5vw, 10px);
  --s2: clamp(10px, 0.8vw, 14px);
  --s3: clamp(14px, 1.1vw, 18px);
  --s4: clamp(18px, 1.4vw, 24px);
  --s5: clamp(24px, 2vw, 32px);

  /* ── Border radius ── */
  --r8: 8px;
  --r10: 10px;
  --r12: 12px;
  --r14: 14px;
  --r16: 16px;
  --r18: 18px;
  --r20: 20px;

  /* ── Typography — never below 12px ── */
  --fs12: clamp(12px, 0.22vw + 11px, 13px);
  --fs13: clamp(13px, 0.22vw + 12px, 14px);
  --fs14: clamp(14px, 0.25vw + 13px, 15px);
  --fs15: clamp(15px, 0.28vw + 14px, 16px);
  --fs16: clamp(16px, 0.32vw + 15px, 18px);
  --fs18: clamp(18px, 0.45vw + 16px, 20px);
  --fs20: clamp(20px, 0.5vw + 18px, 22px);

  /* ── Motion ── */
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --t1: 120ms;
  --t2: 200ms;
  --t3: 280ms;

  /* ── Default palette (dark — dashboard / IG) ── */
  --bg: #0b0d12;
  --bg-elevated: #12151c;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.065);
  --surface-3: rgba(255, 255, 255, 0.09);
  --card: rgba(255, 255, 255, 0.05);
  --border: rgba(255, 255, 255, 0.09);
  --border-2: rgba(255, 255, 255, 0.14);
  --text: rgba(255, 255, 255, 0.93);
  --text-strong: #ffffff;
  --muted: rgba(255, 255, 255, 0.60);
  --muted-2: rgba(255, 255, 255, 0.42);

  /* ── Semantic colours ── */
  --primary: #22c55e;
  --primary-hover: #16a34a;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --waiting: #f59e0b;
  --replied: #22c55e;
  --failed: #ef4444;
  --info: #3b82f6;

  /* ── Shadows ── */
  --sh1: 0 1px 2px rgba(0, 0, 0, 0.06),
         0 8px 24px rgba(0, 0, 0, 0.16);
  --sh2: 0 1px 3px rgba(0, 0, 0, 0.08),
         0 16px 48px rgba(0, 0, 0, 0.24);
  --sh3: 0 2px 4px rgba(0, 0, 0, 0.10),
         0 24px 64px rgba(0, 0, 0, 0.32);

  /* ── Focus ring ── */
  --ring: 0 0 0 3px rgba(34, 197, 94, 0.28);
  --ring-offset: 0 0 0 2px var(--bg);

  /* ── Channel brand tokens ── */
  /* WhatsApp */
  --wa-green: #00a884;
  --wa-green-dark: #075e54;
  --wa-green-light: #25d366;
  --wa-bg: #efeae2;
  --wa-bg-pattern: #d9d2c5;
  --wa-panel: #111b21;
  --wa-panel-header: #202c33;
  --wa-in: #ffffff;
  --wa-out: #d9fdd3;
  --wa-tick: rgba(0, 0, 0, 0.45);
  --wa-text: #111b21;
  --wa-text-secondary: #667781;
  --wa-border: rgba(134, 150, 160, 0.15);
  --wa-hover: rgba(255, 255, 255, 0.06);
  --wa-selected: rgba(0, 168, 132, 0.12);

  /* Instagram */
  --ig-bg: #000000;
  --ig-surface: #1a1a1a;
  --ig-surface-2: #262626;
  --ig-border: #363636;
  --ig-text: #f5f5f5;
  --ig-muted: #a8a8a8;
  --ig-in: #262626;
  --ig-out: linear-gradient(135deg, #5b51d8, #833ab4, #c13584, #e1306c, #fd1d1d);
  --ig-accent: #0095f6;
  --ig-gradient: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);

  /* Facebook Messenger */
  --ms-bg: #f0f2f5;
  --ms-surface: #ffffff;
  --ms-border: rgba(0, 0, 0, 0.08);
  --ms-text: #050505;
  --ms-text-secondary: #65676b;
  --ms-in: #e4e6eb;
  --ms-out: linear-gradient(180deg, #00a2ff, #0078ff);
  --ms-out-solid: #0084ff;
  --ms-blue: #1877f2;
  --ms-hover: rgba(0, 0, 0, 0.04);
  --ms-selected: rgba(24, 119, 242, 0.10);

  /* Gmail */
  --gm-bg: #f6f8fc;
  --gm-surface: #ffffff;
  --gm-card: #ffffff;
  --gm-border: rgba(0, 0, 0, 0.08);
  --gm-text: #1f1f1f;
  --gm-text-secondary: #5f6368;
  --gm-muted: rgba(15, 23, 42, 0.55);
  --gm-blue: #1a73e8;
  --gm-blue-hover: #1557b0;
  --gm-hover: rgba(0, 0, 0, 0.04);
  --gm-selected: rgba(26, 115, 232, 0.08);
  --gm-red: #d93025;
}


/* ── Reset ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  font-size: var(--fs14);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
  min-height: 100svh;
  min-height: 100dvh;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection {
  background: rgba(34, 197, 94, 0.25);
  color: var(--text);
}

img,
svg {
  display: block;
  max-width: 100%;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ── Focus visible — accessible & prominent ── */
:where(button, [role="button"], a, input, textarea, select):focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  box-shadow: var(--ring);
  border-color: transparent;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}


/* ── Scrollbar — universal thin style ── */
.message-list,
.chat-messages,
.channel-filters {
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.18) transparent;
}

.message-list::-webkit-scrollbar,
.chat-messages::-webkit-scrollbar,
.channel-filters::-webkit-scrollbar {
  width: 8px;
}

.message-list::-webkit-scrollbar-track,
.chat-messages::-webkit-scrollbar-track,
.channel-filters::-webkit-scrollbar-track {
  background: transparent;
}

.message-list::-webkit-scrollbar-thumb,
.chat-messages::-webkit-scrollbar-thumb,
.channel-filters::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border: 2px solid transparent;
  background-clip: content-box;
  border-radius: 999px;
  min-height: 40px;
}

.message-list::-webkit-scrollbar-thumb:hover,
.chat-messages::-webkit-scrollbar-thumb:hover,
.channel-filters::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
  border: 2px solid transparent;
  background-clip: content-box;
}

/* Light page scrollbar overrides */
.facebook-page .message-list,
.facebook-page .chat-messages,
.facebook-page .channel-filters,
.mail-page .message-list,
.mail-page .chat-messages,
.mail-page .channel-filters {
  scrollbar-color: rgba(0, 0, 0, 0.15) transparent;
}

.facebook-page .message-list::-webkit-scrollbar-thumb,
.facebook-page .chat-messages::-webkit-scrollbar-thumb,
.facebook-page .channel-filters::-webkit-scrollbar-thumb,
.mail-page .message-list::-webkit-scrollbar-thumb,
.mail-page .chat-messages::-webkit-scrollbar-thumb,
.mail-page .channel-filters::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.12);
  border: 2px solid transparent;
  background-clip: content-box;
}

.facebook-page .message-list::-webkit-scrollbar-thumb:hover,
.facebook-page .chat-messages::-webkit-scrollbar-thumb:hover,
.facebook-page .channel-filters::-webkit-scrollbar-thumb:hover,
.mail-page .message-list::-webkit-scrollbar-thumb:hover,
.mail-page .chat-messages::-webkit-scrollbar-thumb:hover,
.mail-page .channel-filters::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.22);
  border: 2px solid transparent;
  background-clip: content-box;
}

/* WhatsApp panel scrollbar */
.whatsapp-page .message-list::-webkit-scrollbar-thumb,
.whatsapp-page .channel-filters::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border: 2px solid transparent;
  background-clip: content-box;
}

.whatsapp-page .chat-messages::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.10);
  border: 2px solid transparent;
  background-clip: content-box;
}


/* ======================================================================
   §2  BUTTONS
====================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.1rem;
  border-radius: var(--r12);
  border: 1px solid transparent;
  font-size: var(--fs14);
  font-weight: 600;
  line-height: 1.4;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
  transition:
    background var(--t2) var(--ease),
    transform var(--t1) var(--ease),
    box-shadow var(--t2) var(--ease),
    border-color var(--t1) var(--ease),
    opacity var(--t1) var(--ease);
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  pointer-events: none;
}

.btn-primary {
  width: 100%;
  color: #fff;
  background: var(--primary);
  box-shadow: 0 4px 14px rgba(34, 197, 94, 0.25);
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
  box-shadow: 0 6px 20px rgba(34, 197, 94, 0.30);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--surface-2);
  border-color: var(--border-2);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
  box-shadow: 0 4px 14px rgba(239, 68, 68, 0.20);
}

.btn-danger:hover:not(:disabled) {
  background: var(--danger-hover);
  box-shadow: 0 6px 20px rgba(239, 68, 68, 0.25);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r10);
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  flex-shrink: 0;
  transition:
    background var(--t1) var(--ease),
    border-color var(--t1) var(--ease),
    color var(--t1) var(--ease);
}

.btn-icon:hover {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
}

/* Sidebar toggle / close / detail back */
.sidebar-toggle,
.sidebar-close {
  display: none;
}

.sidebar-toggle::before {
  content: "☰";
  font-size: 1.25rem;
}

.sidebar-close::before {
  content: "✕";
  font-size: 1.15rem;
}

.detail-back::before {
  content: "←";
  font-size: 1.15rem;
}


/* ======================================================================
   §3  APP LAYOUT
====================================================================== */

/* ── Root app container ── */
.panel-page .app {
  display: flex;
  min-height: 100vh;
  min-height: 100svh;
  min-height: 100dvh;
  overflow: hidden;
}

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-elevated);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow: hidden;
  z-index: 10;
}

.sidebar-header {
  height: var(--topbar-height);
  padding: 0 var(--s3);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar-header h2 {
  font-size: var(--fs16);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.channel-filters {
  padding: var(--s2);
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
  overflow-x: hidden;
  flex: 1;
}

.channel-btn {
  padding: 0.65rem 0.85rem;
  border-radius: var(--r10);
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  text-align: left;
  font-size: var(--fs14);
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  transition:
    background var(--t1) var(--ease),
    border-color var(--t1) var(--ease),
    color var(--t1) var(--ease),
    transform var(--t1) var(--ease);
}

.channel-btn:hover {
  background: var(--surface);
  border-color: var(--border);
}

.channel-btn:active {
  transform: scale(0.98);
}

.channel-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: transparent;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(34, 197, 94, 0.20);
}

.sidebar-footer {
  padding: var(--s3);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar-footer .btn {
  width: 100%;
}

/* ── Main area ── */
.main-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

/* ── Topbar ── */
.topbar {
  height: var(--topbar-height);
  padding: 0 var(--s3);
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s3);
  flex-shrink: 0;
  z-index: 5;
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: var(--fs15);
  letter-spacing: -0.01em;
  color: var(--text);
  flex-shrink: 0;
}

.brand-logo {
  width: 28px;
  height: 28px;
  object-fit: contain;
  border-radius: 6px;
}

.topbar-stats {
  display: flex;
  gap: clamp(10px, 1.2vw, 20px);
  font-size: var(--fs13);
  color: var(--muted);
  flex-shrink: 0;
}

.topbar-stats strong {
  color: var(--text);
  font-weight: 700;
}

.stat-waiting strong {
  color: var(--waiting);
}

/* ── Content wrap (list + detail) ── */
.content-wrap {
  flex: 1;
  min-height: 0;
  display: flex;
  overflow: hidden;
}

/* ── Message list column ── */
.message-list-wrap {
  width: var(--list-width);
  min-width: 290px;
  border-right: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.015);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
}

.message-list {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

/* ── Detail column ── */
.detail-wrap {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}


/* ======================================================================
   §4  COMPONENTS
====================================================================== */

/* ── Thread / message item ── */
.message-item {
  padding: var(--s3);
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 0.75rem;
  cursor: pointer;
  position: relative;
  transition:
    background var(--t1) var(--ease),
    border-left-color var(--t1) var(--ease);
  border-left: 3px solid transparent;
}

.message-item:hover {
  background: var(--surface);
}

.message-item:active {
  background: var(--surface-2);
}

.message-item.selected {
  background: var(--surface-2);
  border-left-color: var(--primary);
}

/* Unread indicator — bold sender + dot */
.message-item.unread .item-sender {
  font-weight: 900;
}

.message-item.unread::after {
  content: "";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}

.message-item .channel-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  font-size: 1.1rem;
  border: 1px solid var(--border);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.message-item .item-body {
  flex: 1;
  min-width: 0;
}

.message-item .item-sender {
  font-weight: 700;
  font-size: var(--fs15);
  letter-spacing: -0.01em;
  margin-bottom: 2px;
  color: var(--text);
  line-height: 1.35;
}

.message-item .item-preview {
  font-size: var(--fs13);
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.45;
}

.message-item .item-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 5px;
  font-size: var(--fs12);
  color: var(--muted-2);
}

/* ── Channel icon colours ── */
.channel-icon.whatsapp {
  background: rgba(0, 168, 132, 0.15);
  color: var(--wa-green);
}

.channel-icon.instagram {
  background: linear-gradient(135deg, rgba(228, 64, 95, 0.15), rgba(168, 85, 247, 0.15));
  color: #e4405f;
}

.channel-icon.facebook {
  background: rgba(24, 119, 242, 0.12);
  color: var(--ms-blue);
}

.channel-icon.mail {
  background: rgba(107, 114, 128, 0.15);
  color: #9ca3af;
}

/* ── Status badges ── */
.status-badge {
  font-size: var(--fs12);
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  line-height: 1.4;
}

.status-badge.waiting {
  background: rgba(245, 158, 11, 0.14);
  color: var(--waiting);
  border-color: rgba(245, 158, 11, 0.20);
}

.status-badge.replied {
  background: rgba(34, 197, 94, 0.14);
  color: var(--replied);
  border-color: rgba(34, 197, 94, 0.20);
}

.status-badge.failed {
  background: rgba(239, 68, 68, 0.14);
  color: var(--failed);
  border-color: rgba(239, 68, 68, 0.20);
}

/* ── Empty & loading states ── */
.empty-state,
.loading {
  padding: var(--s5);
  text-align: center;
  color: var(--muted);
  font-size: var(--fs15);
  line-height: 1.6;
}

.loading {
  display: none;
}

.loading.visible {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--s2);
}

/* Simple loading spinner */
.loading.visible::before {
  content: "";
  width: 28px;
  height: 28px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.empty-state.hidden {
  display: none;
}

/* ── Detail placeholder ── */
.detail-placeholder {
  flex: 1;
  display: grid;
  place-items: center;
  padding: var(--s5);
  color: var(--muted);
  font-size: var(--fs15);
}

.detail-placeholder.hidden {
  display: none;
}

.detail-placeholder-inner {
  max-width: 380px;
  padding: var(--s5) var(--s4);
  border-radius: var(--r20);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--sh1);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s2);
}

.detail-placeholder-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 1.6rem;
  margin-bottom: 4px;
}

.detail-placeholder-title {
  font-size: var(--fs16);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.detail-placeholder-text {
  font-size: var(--fs14);
  color: var(--muted);
  line-height: 1.55;
}

/* Placeholder icon per channel */
.whatsapp-page .detail-placeholder-icon {
  background: rgba(0, 168, 132, 0.14);
  color: var(--wa-green);
}

.instagram-page .detail-placeholder-icon {
  background: linear-gradient(135deg, rgba(255, 45, 85, 0.20), rgba(168, 85, 247, 0.20), rgba(59, 130, 246, 0.15));
  color: #fff;
}

.facebook-page .detail-placeholder-icon {
  background: rgba(24, 119, 242, 0.12);
  color: var(--ms-blue);
}

.mail-page .detail-placeholder-icon {
  background: rgba(26, 115, 232, 0.10);
  color: var(--gm-blue);
}

.dashboard-page .detail-placeholder-icon {
  background: rgba(148, 163, 184, 0.14);
  color: var(--muted);
}

/* ── Detail view ── */
.detail-view {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.detail-view.hidden {
  display: none;
}

/* ── Detail header ── */
.detail-header {
  padding: 0 var(--s3);
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
  flex-shrink: 0;
  z-index: 4;
}

.detail-meta {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.detail-sender {
  font-weight: 800;
  font-size: var(--fs15);
  letter-spacing: -0.01em;
  color: var(--text);
  line-height: 1.3;
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}
.detail-sender svg {
  flex-shrink: 0;
  opacity: 0.4;
  transition: opacity 0.2s;
}
.detail-sender:hover svg { opacity: 0.8; }

/* ── Name Edit Modal ── */
.name-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  animation: fadeIn 0.15s ease;
}
.name-modal {
  background: var(--bg-elevated, #1e1e2e);
  border: 1px solid var(--border, #333);
  border-radius: 12px;
  padding: 24px;
  width: 90%;
  max-width: 380px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.name-modal-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text, #fff);
  margin-bottom: 16px;
}
.name-modal-input {
  width: 100%;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--border, #444);
  background: var(--bg-primary, #111);
  color: var(--text, #fff);
  font-size: 0.95rem;
  outline: none;
  box-sizing: border-box;
  transition: border-color 0.2s;
}
.name-modal-input:focus {
  border-color: var(--accent, #7c3aed);
}
.name-modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 16px;
}
.name-modal-btn {
  padding: 8px 20px;
  border-radius: 8px;
  border: none;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
}
.name-modal-cancel {
  background: var(--border, #333);
  color: var(--text, #fff);
}
.name-modal-save {
  background: linear-gradient(135deg, #7c3aed, #a855f7);
  color: #fff;
}
.name-modal-btn:hover { opacity: 0.85; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.detail-channel {
  font-size: var(--fs12);
  color: var(--muted);
  line-height: 1.3;
}

/* ── Chat container ── */
.chat-container {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-messages {
  flex: 1 1 0;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--s4) var(--s4) var(--s2) var(--s4);
  display: flex;
  flex-direction: column;
  gap: 8px;
  overscroll-behavior: contain;
}

/* ── Message bubbles ── */
.bubble {
  max-width: min(680px, 82%);
  padding: 10px 14px;
  font-size: var(--fs14);
  line-height: 1.5;
  word-break: break-word;
  border-radius: var(--r18);
  position: relative;
}

.bubble.incoming {
  margin-left: 0 !important;
  margin-right: auto !important;
  background: var(--surface-2);
  color: var(--text);
  border-bottom-left-radius: var(--r8);
}

.bubble.outgoing {
  margin-left: auto !important;
  margin-right: 0 !important;
  background: var(--primary);
  color: #fff;
  border-bottom-right-radius: var(--r8);
}

.bubble-time {
  font-size: var(--fs12);
  margin-top: 4px;
  opacity: 0.65;
  line-height: 1.3;
}

/* ── Reply section ── */
.reply-section {
  padding: var(--s2) var(--s4) calc(var(--s3) + env(safe-area-inset-bottom));
  border-top: 1px solid var(--border);
  background: var(--bg-elevated);
  flex-shrink: 0;
  z-index: 3;
}

.reply-section textarea {
  width: 100%;
  min-height: 80px;
  max-height: 200px;
  resize: vertical;
  padding: 12px 14px;
  border-radius: var(--r14);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: var(--fs14);
  line-height: 1.5;
  transition:
    border-color var(--t1) var(--ease),
    box-shadow var(--t1) var(--ease),
    background var(--t1) var(--ease);
}

.reply-section textarea::placeholder {
  color: var(--muted);
}

.reply-section textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: var(--ring);
  background: var(--surface-2);
}

.reply-actions {
  margin-top: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s2);
}

.reply-actions-buttons {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Dropdown ── */
.message-actions-dropdown {
  position: relative;
}

.message-actions-dropdown.hidden {
  display: none;
}

.btn-more {
  font-size: 1.2rem;
  padding: 0.5rem;
}

.dropdown-menu {
  position: absolute;
  bottom: calc(100% + 6px);
  left: 0;
  min-width: 180px;
  border-radius: var(--r12);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  box-shadow: var(--sh2);
  padding: 4px 0;
  z-index: 50;
  backdrop-filter: blur(12px);
}

.dropdown-menu.hidden {
  display: none;
}

.dropdown-item {
  width: 100%;
  background: none;
  border: none;
  color: var(--text);
  text-align: left;
  padding: 9px 14px;
  font-size: var(--fs14);
  cursor: pointer;
  transition: background var(--t1) var(--ease);
  line-height: 1.45;
}

.dropdown-item:hover:not(:disabled) {
  background: var(--surface);
}

.dropdown-item:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ── Feedback ── */
.feedback {
  font-size: var(--fs13);
  min-height: 1.25rem;
  line-height: 1.4;
}

.feedback.success {
  color: var(--replied);
}

.feedback.error {
  color: var(--danger);
}

/* ── Sidebar overlay (mobile drawer) ── */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.50);
  z-index: 99;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.sidebar-overlay.visible {
  display: block;
}


/* ======================================================================
   §5  CHANNEL THEMES
====================================================================== */

/* ─────────────────────────────────────
   5A  WHATSAPP WEB
   ───────────────────────────────────── */
.whatsapp-page {
  background: var(--wa-bg);
  color: var(--wa-text);
}

/* Topbar */
.whatsapp-topbar {
  background: var(--wa-green-dark);
  border-bottom-color: rgba(0, 0, 0, 0.15);
}

.whatsapp-topbar .topbar-brand span,
.whatsapp-topbar .topbar-stats {
  color: rgba(255, 255, 255, 0.95);
}

.whatsapp-topbar .topbar-stats strong {
  color: #fff;
}

/* Sidebar */
.whatsapp-page .sidebar {
  background: var(--wa-panel);
  border-right-color: var(--wa-border);
}

.whatsapp-page .sidebar-header {
  background: var(--wa-panel-header);
  border-bottom-color: var(--wa-border);
}

.whatsapp-page .sidebar-header h2 {
  color: rgba(255, 255, 255, 0.92);
}

.whatsapp-page .channel-btn {
  color: rgba(255, 255, 255, 0.85);
}

.whatsapp-page .channel-btn:hover {
  background: var(--wa-hover);
  border-color: transparent;
}

.whatsapp-page .channel-btn.active {
  background: var(--wa-green);
  color: #fff;
  box-shadow: 0 2px 8px rgba(0, 168, 132, 0.25);
}

.whatsapp-page .sidebar-footer {
  border-top-color: var(--wa-border);
}

/* Message list */
.whatsapp-page .message-list-wrap {
  background: var(--wa-panel);
  border-right-color: var(--wa-border);
}

.whatsapp-page .message-item {
  border-bottom-color: rgba(255, 255, 255, 0.06);
  border-left-color: transparent;
}

.whatsapp-page .message-item:hover {
  background: var(--wa-hover);
}

.whatsapp-page .message-item.selected {
  background: var(--wa-selected);
  border-left-color: var(--wa-green);
}

.whatsapp-page .message-item .item-sender {
  color: rgba(255, 255, 255, 0.92);
}

.whatsapp-page .message-item .item-preview {
  color: var(--wa-text-secondary);
}

.whatsapp-page .message-item .item-meta {
  color: rgba(255, 255, 255, 0.45);
}

.whatsapp-page .message-item.unread::after {
  background: var(--wa-green-light);
}

/* Detail header */
.whatsapp-page .detail-header {
  background: var(--wa-panel-header);
  border-bottom-color: var(--wa-border);
}

.whatsapp-page .detail-sender {
  color: rgba(255, 255, 255, 0.92);
}

.whatsapp-page .detail-channel {
  color: var(--wa-text-secondary);
}

/* Chat area — WhatsApp doodle pattern */
.chat-container.theme-whatsapp,
.chat-container.theme-whatsapp .chat-messages {
  background: var(--wa-bg) !important;
}

.chat-container.theme-whatsapp {
  background-image:
    url("data:image/svg+xml,%3Csvg width='200' height='200' xmlns='http://www.w3.org/2000/svg'%3E%3Cdefs%3E%3Cpattern id='p' width='40' height='40' patternUnits='userSpaceOnUse'%3E%3Ccircle cx='2' cy='2' r='0.8' fill='%23c8bfb0' opacity='0.3'/%3E%3C/pattern%3E%3C/defs%3E%3Crect width='200' height='200' fill='url(%23p)'/%3E%3C/svg%3E") !important;
}

/* Bubbles */
.theme-whatsapp .bubble {
  border-radius: var(--r12);
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.08);
  font-size: var(--fs14);
}

.theme-whatsapp .bubble.incoming {
  background: var(--wa-in);
  color: var(--wa-text) !important;
  border-top-left-radius: 4px;
  border: none;
}

.theme-whatsapp .bubble.outgoing {
  background: var(--wa-out);
  color: var(--wa-text) !important;
  border-top-right-radius: 4px;
  border: none;
}

.theme-whatsapp .bubble-time {
  color: var(--wa-tick);
  text-align: right;
  font-size: 11px;
}

/* Reply section */
.whatsapp-page .reply-section {
  background: var(--wa-panel);
  border-top-color: var(--wa-border);
}

.whatsapp-page .reply-section textarea {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.10);
  color: rgba(255, 255, 255, 0.92);
  border-radius: 21px;
  min-height: 42px;
  padding: 10px 16px;
}

.whatsapp-page .reply-section textarea::placeholder {
  color: rgba(255, 255, 255, 0.45);
}

.whatsapp-page .reply-section textarea:focus {
  border-color: var(--wa-green);
  box-shadow: 0 0 0 3px rgba(0, 168, 132, 0.18);
}

/* Buttons */
.whatsapp-page .btn-primary {
  background: var(--wa-green);
  box-shadow: 0 4px 14px rgba(0, 168, 132, 0.25);
}

.whatsapp-page .btn-primary:hover:not(:disabled) {
  background: #009677;
}

.whatsapp-page .btn-secondary {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.10);
  color: rgba(255, 255, 255, 0.88);
}

/* Dropdown */
.whatsapp-page .dropdown-menu {
  background: var(--wa-panel-header);
  border-color: var(--wa-border);
}

.whatsapp-page .dropdown-item {
  color: rgba(255, 255, 255, 0.88);
}

.whatsapp-page .dropdown-item:hover:not(:disabled) {
  background: var(--wa-hover);
}

/* Placeholder */
.whatsapp-page .detail-placeholder-inner {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--wa-border);
}

.whatsapp-page .detail-placeholder-title {
  color: rgba(255, 255, 255, 0.88);
}

.whatsapp-page .detail-placeholder-text {
  color: var(--wa-text-secondary);
}


/* ─────────────────────────────────────
   5B  INSTAGRAM DM
   ───────────────────────────────────── */
.instagram-page {
  background: var(--ig-bg);
  color: var(--ig-text);
}

/* Topbar */
.instagram-topbar {
  background: var(--ig-bg);
  border-bottom-color: var(--ig-border);
}

.instagram-topbar .topbar-brand span,
.instagram-topbar .topbar-stats {
  color: var(--ig-text);
}

.instagram-topbar .topbar-stats strong {
  color: #fff;
}

/* Sidebar */
.instagram-page .sidebar {
  background: var(--ig-bg);
  border-right-color: var(--ig-border);
}

.instagram-page .sidebar-header {
  border-bottom-color: var(--ig-border);
}

.instagram-page .sidebar-header h2 {
  color: var(--ig-text);
}

.instagram-page .channel-btn {
  color: var(--ig-text);
}

.instagram-page .channel-btn:hover {
  background: var(--ig-surface);
  border-color: transparent;
}

.instagram-page .channel-btn.active {
  background: var(--ig-surface-2);
  color: #fff;
  border-color: var(--ig-border);
}

.instagram-page .sidebar-footer {
  border-top-color: var(--ig-border);
}

/* Message list */
.instagram-page .message-list-wrap {
  background: var(--ig-bg);
  border-right-color: var(--ig-border);
}

.instagram-page .message-item {
  border-bottom-color: rgba(255, 255, 255, 0.06);
  border-left-color: transparent;
}

.instagram-page .message-item:hover {
  background: var(--ig-surface);
}

.instagram-page .message-item.selected {
  background: rgba(255, 255, 255, 0.08);
  border-left-color: var(--ig-accent);
}

.instagram-page .message-item .item-sender {
  color: var(--ig-text);
}

.instagram-page .message-item .item-preview {
  color: var(--ig-muted);
}

.instagram-page .message-item .item-meta {
  color: rgba(255, 255, 255, 0.38);
}

.instagram-page .message-item .channel-icon {
  border-radius: 50%;
}

/* Detail header */
.instagram-page .detail-header {
  background: var(--ig-bg);
  border-bottom-color: var(--ig-border);
}

.instagram-page .detail-sender {
  color: var(--ig-text);
}

.instagram-page .detail-channel {
  color: var(--ig-muted);
}

/* Chat area */
.chat-container.theme-instagram {
  background:
    radial-gradient(circle at 10% 15%, rgba(255, 45, 85, 0.06), transparent 40%),
    radial-gradient(circle at 90% 25%, rgba(168, 85, 247, 0.08), transparent 40%),
    radial-gradient(circle at 60% 80%, rgba(59, 130, 246, 0.06), transparent 45%),
    var(--ig-bg);
}

/* Bubbles */
.theme-instagram .bubble {
  border-radius: 22px;
  font-size: var(--fs14);
}

.theme-instagram .bubble.incoming {
  background: var(--ig-surface-2);
  color: var(--ig-text);
  border: 1px solid var(--ig-border);
  border-bottom-left-radius: 6px;
}

.theme-instagram .bubble.outgoing {
  background: var(--ig-out);
  color: #fff;
  border: none;
  border-bottom-right-radius: 6px;
  box-shadow: 0 4px 16px rgba(131, 58, 180, 0.25);
}

.theme-instagram .bubble-time {
  color: var(--ig-muted);
}

/* Reply section */
.instagram-page .reply-section {
  background: var(--ig-bg);
  border-top-color: var(--ig-border);
}

.instagram-page .reply-section textarea {
  background: var(--ig-surface);
  border-color: var(--ig-border);
  color: var(--ig-text);
  border-radius: 22px;
  min-height: 44px;
  padding: 10px 16px;
}

.instagram-page .reply-section textarea::placeholder {
  color: var(--ig-muted);
}

.instagram-page .reply-section textarea:focus {
  border-color: var(--ig-accent);
  box-shadow: 0 0 0 3px rgba(0, 149, 246, 0.18);
}

/* Buttons */
.instagram-page .btn-primary {
  background: var(--ig-accent);
  box-shadow: 0 4px 14px rgba(0, 149, 246, 0.25);
}

.instagram-page .btn-primary:hover:not(:disabled) {
  background: #1877f2;
}

.instagram-page .btn-secondary {
  background: var(--ig-surface);
  border-color: var(--ig-border);
  color: var(--ig-text);
}

/* Dropdown */
.instagram-page .dropdown-menu {
  background: var(--ig-surface-2);
  border-color: var(--ig-border);
}

.instagram-page .dropdown-item {
  color: var(--ig-text);
}

.instagram-page .dropdown-item:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.06);
}

/* Placeholder */
.instagram-page .detail-placeholder-inner {
  background: var(--ig-surface);
  border-color: var(--ig-border);
}

.instagram-page .detail-placeholder-title {
  color: var(--ig-text);
}

.instagram-page .detail-placeholder-text {
  color: var(--ig-muted);
}


/* ─────────────────────────────────────
   5C  FACEBOOK MESSENGER
   ───────────────────────────────────── */
.facebook-page {
  background: var(--ms-bg);
  color: var(--ms-text);
}

/* Topbar */
.facebook-topbar {
  background: var(--ms-blue);
  border-bottom-color: rgba(0, 0, 0, 0.12);
}

.facebook-topbar .topbar-brand span,
.facebook-topbar .topbar-stats {
  color: #fff;
}

.facebook-topbar .topbar-stats strong {
  color: #fff;
}

/* Sidebar */
.facebook-page .sidebar {
  background: var(--ms-surface);
  border-right-color: var(--ms-border);
}

.facebook-page .sidebar-header {
  border-bottom-color: var(--ms-border);
}

.facebook-page .sidebar-header h2 {
  color: var(--ms-text);
}

.facebook-page .channel-btn {
  color: var(--ms-text);
  border-radius: var(--r10);
}

.facebook-page .channel-btn:hover {
  background: var(--ms-hover);
  border-color: transparent;
}

.facebook-page .channel-btn.active {
  background: var(--ms-selected);
  color: var(--ms-blue);
  border-color: transparent;
  font-weight: 600;
}

.facebook-page .sidebar-footer {
  border-top-color: var(--ms-border);
}

/* Message list */
.facebook-page .message-list-wrap {
  background: var(--ms-surface);
  border-right-color: var(--ms-border);
}

.facebook-page .message-item {
  border-bottom-color: rgba(0, 0, 0, 0.05);
  border-left-color: transparent;
}

.facebook-page .message-item:hover {
  background: var(--ms-hover);
}

.facebook-page .message-item.selected {
  background: var(--ms-selected);
  border-left-color: var(--ms-blue);
}

.facebook-page .message-item .item-sender {
  color: var(--ms-text);
}

.facebook-page .message-item .item-preview {
  color: var(--ms-text-secondary);
}

.facebook-page .message-item .item-meta {
  color: rgba(0, 0, 0, 0.40);
}

.facebook-page .message-item.unread::after {
  background: var(--ms-blue);
}

.facebook-page .message-item .channel-icon {
  border-color: var(--ms-border);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

/* Detail header */
.facebook-page .detail-header {
  background: var(--ms-surface);
  border-bottom-color: var(--ms-border);
}

.facebook-page .detail-sender {
  color: var(--ms-text);
}

.facebook-page .detail-channel {
  color: var(--ms-text-secondary);
}

/* Chat area */
.chat-container.theme-facebook {
  background: var(--ms-bg);
}

/* Bubbles — Messenger style rounded */
.theme-facebook .bubble {
  border-radius: 20px;
  font-size: var(--fs14);
}

.theme-facebook .bubble.incoming {
  background: var(--ms-in);
  color: var(--ms-text);
  border: none;
  border-bottom-left-radius: 6px;
}

.theme-facebook .bubble.outgoing {
  background: var(--ms-out);
  color: #fff;
  border: none;
  border-bottom-right-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 132, 255, 0.20);
}

.theme-facebook .bubble-time {
  color: var(--ms-text-secondary);
}

/* Reply section */
.facebook-page .reply-section {
  background: var(--ms-surface);
  border-top-color: var(--ms-border);
}

.facebook-page .reply-section textarea {
  background: var(--ms-bg);
  border-color: var(--ms-border);
  color: var(--ms-text);
  border-radius: 20px;
  min-height: 42px;
  padding: 10px 16px;
}

.facebook-page .reply-section textarea::placeholder {
  color: var(--ms-text-secondary);
}

.facebook-page .reply-section textarea:focus {
  border-color: var(--ms-blue);
  box-shadow: 0 0 0 3px rgba(24, 119, 242, 0.15);
}

/* Buttons */
.facebook-page .btn-primary {
  background: var(--ms-out-solid);
  box-shadow: 0 4px 14px rgba(0, 132, 255, 0.25);
}

.facebook-page .btn-primary:hover:not(:disabled) {
  background: #0070e0;
}

.facebook-page .btn-secondary {
  background: var(--ms-bg);
  border-color: var(--ms-border);
  color: var(--ms-text);
}

.facebook-page .btn-secondary:hover:not(:disabled) {
  background: rgba(0, 0, 0, 0.06);
}

/* Dropdown */
.facebook-page .dropdown-menu {
  background: var(--ms-surface);
  border-color: var(--ms-border);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
}

.facebook-page .dropdown-item {
  color: var(--ms-text);
}

.facebook-page .dropdown-item:hover:not(:disabled) {
  background: var(--ms-hover);
}

/* Placeholder */
.facebook-page .detail-placeholder-inner {
  background: var(--ms-surface);
  border-color: var(--ms-border);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.facebook-page .detail-placeholder-title {
  color: var(--ms-text);
}

.facebook-page .detail-placeholder-text {
  color: var(--ms-text-secondary);
}

/* Focus ring override for light theme */
.facebook-page :where(button, [role="button"], a, input, textarea, select):focus-visible {
  outline-color: var(--ms-blue);
  box-shadow: 0 0 0 3px rgba(24, 119, 242, 0.20);
}


/* ─────────────────────────────────────
   5D  GMAIL
   ───────────────────────────────────── */
.mail-page {
  background: var(--gm-bg);
  color: var(--gm-text);
}

/* Topbar */
.mail-topbar {
  background: var(--gm-surface);
  border-bottom-color: var(--gm-border);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.mail-topbar .topbar-brand span {
  color: var(--gm-text);
}

.mail-topbar .topbar-stats {
  color: var(--gm-text-secondary);
}

.mail-topbar .topbar-stats strong {
  color: var(--gm-text);
}

/* Sidebar */
.mail-page .sidebar {
  background: var(--gm-surface);
  border-right-color: var(--gm-border);
}

.mail-page .sidebar-header {
  border-bottom-color: var(--gm-border);
}

.mail-page .sidebar-header h2 {
  color: var(--gm-text);
}

.mail-page .channel-btn {
  color: var(--gm-text);
  border-radius: 0 16px 16px 0;
  padding-left: 24px;
}

.mail-page .channel-btn:hover {
  background: var(--gm-hover);
  border-color: transparent;
}

.mail-page .channel-btn.active {
  background: rgba(26, 115, 232, 0.12);
  color: var(--gm-blue);
  border-color: transparent;
  font-weight: 700;
}

.mail-page .sidebar-footer {
  border-top-color: var(--gm-border);
}

/* Message list */
.mail-page .message-list-wrap {
  background: var(--gm-surface);
  border-right-color: var(--gm-border);
}

.mail-page .message-item {
  border-bottom-color: rgba(0, 0, 0, 0.05);
  border-left-color: transparent;
}

.mail-page .message-item:hover {
  background: var(--gm-hover);
  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.04);
}

.mail-page .message-item.selected {
  background: var(--gm-selected);
  border-left-color: var(--gm-blue);
}

.mail-page .message-item .item-sender {
  color: var(--gm-text);
}

.mail-page .message-item .item-preview {
  color: var(--gm-text-secondary);
}

.mail-page .message-item .item-meta {
  color: var(--gm-muted);
}

.mail-page .message-item.unread::after {
  background: var(--gm-blue);
}

.mail-page .message-item .channel-icon {
  border-color: var(--gm-border);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

/* Detail header */
.mail-page .detail-header {
  background: var(--gm-surface);
  border-bottom-color: var(--gm-border);
}

.mail-page .detail-sender {
  color: var(--gm-text);
}

.mail-page .detail-channel {
  color: var(--gm-text-secondary);
}

/* Chat area — Gmail thread style */
.chat-container.theme-mail {
  background: var(--gm-bg);
}

/* Thread header (Gmail-specific) */
.theme-mail .thread-header {
  background: var(--gm-surface);
  border: 1px solid var(--gm-border);
  border-radius: var(--r12);
  padding: var(--s3);
  margin: var(--s3) var(--s4) 0 var(--s4);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  color: var(--gm-text);
  font-size: var(--fs14);
}

/* Bubbles — Gmail card style */
.theme-mail .bubble {
  border-radius: var(--r12);
  font-size: var(--fs14);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.theme-mail .bubble.incoming {
  background: var(--gm-surface);
  color: var(--gm-text);
  border: 1px solid var(--gm-border);
}

.theme-mail .bubble.outgoing {
  background: rgba(26, 115, 232, 0.08);
  color: var(--gm-text);
  border: 1px solid rgba(26, 115, 232, 0.15);
}

.theme-mail .bubble-time {
  color: var(--gm-text-secondary);
}

/* Reply section */
.mail-page .reply-section {
  background: var(--gm-surface);
  border-top-color: var(--gm-border);
}

.mail-page .reply-section textarea {
  background: var(--gm-bg);
  border-color: var(--gm-border);
  color: var(--gm-text);
  border-radius: var(--r10);
}

.mail-page .reply-section textarea::placeholder {
  color: var(--gm-text-secondary);
}

.mail-page .reply-section textarea:focus {
  border-color: var(--gm-blue);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.15);
}

/* Buttons */
.mail-page .btn-primary {
  background: var(--gm-blue);
  box-shadow: 0 1px 3px rgba(26, 115, 232, 0.30);
  border-radius: var(--r20);
  font-weight: 600;
}

.mail-page .btn-primary:hover:not(:disabled) {
  background: var(--gm-blue-hover);
  box-shadow: 0 2px 6px rgba(26, 115, 232, 0.35);
}

.mail-page .btn-secondary {
  background: var(--gm-bg);
  border-color: var(--gm-border);
  color: var(--gm-text);
  border-radius: var(--r20);
}

.mail-page .btn-secondary:hover:not(:disabled) {
  background: rgba(0, 0, 0, 0.04);
}

/* Dropdown */
.mail-page .dropdown-menu {
  background: var(--gm-surface);
  border-color: var(--gm-border);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.10);
  border-radius: var(--r8);
}

.mail-page .dropdown-item {
  color: var(--gm-text);
}

.mail-page .dropdown-item:hover:not(:disabled) {
  background: var(--gm-hover);
}

/* Placeholder */
.mail-page .detail-placeholder-inner {
  background: var(--gm-surface);
  border-color: var(--gm-border);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.mail-page .detail-placeholder-title {
  color: var(--gm-text);
}

.mail-page .detail-placeholder-text {
  color: var(--gm-text-secondary);
}

/* Focus ring override for Gmail */
.mail-page :where(button, [role="button"], a, input, textarea, select):focus-visible {
  outline-color: var(--gm-blue);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.18);
}


/* ======================================================================
   §6  LOGIN PAGE
====================================================================== */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  min-height: 100svh;
  padding: var(--s4);

  --login-input-text: var(--text);
  --login-input-bg: rgba(255, 255, 255, 0.05);
  --login-input-border: var(--border);
  --login-placeholder: var(--muted);
}

.login-card {
  width: 100%;
  max-width: 400px;
  padding: var(--s5) var(--s4);
  border-radius: var(--r20);
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: var(--sh2);
}

.login-card h1 {
  font-size: var(--fs20);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
  color: var(--text);
}

.login-subtitle {
  font-size: var(--fs14);
  color: var(--muted);
  margin-bottom: var(--s4);
  line-height: 1.5;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--s2);
}

.login-form label {
  font-size: var(--fs13);
  font-weight: 600;
  color: var(--text);
}

.login-form input {
  color: var(--login-input-text) !important;
  -webkit-text-fill-color: var(--login-input-text) !important;
  caret-color: var(--login-input-text) !important;
  background: var(--login-input-bg) !important;
  border-radius: var(--r12);
  border: 1px solid var(--login-input-border) !important;
  padding: 0.75rem 0.9rem;
  font-size: var(--fs14);
  line-height: 1.5;
  transition:
    border-color var(--t1) var(--ease),
    box-shadow var(--t1) var(--ease);
}

.login-form input::placeholder {
  color: var(--login-placeholder) !important;
}

.login-form input:focus {
  outline: none;
  border-color: var(--primary) !important;
  box-shadow: var(--ring);
}

.login-form input:-webkit-autofill {
  -webkit-text-fill-color: var(--login-input-text) !important;
  box-shadow: 0 0 0px 1000px var(--bg-elevated) inset !important;
}

.error-msg {
  min-height: 1.25rem;
  font-size: var(--fs13);
  color: var(--danger);
  margin-top: 4px;
  line-height: 1.4;
}

/* Light-page login overrides */
.facebook-page .login-page,
.mail-page .login-page {
  --login-input-text: rgba(15, 23, 42, 0.92);
  --login-input-bg: rgba(15, 23, 42, 0.03);
  --login-input-border: rgba(15, 23, 42, 0.12);
  --login-placeholder: rgba(15, 23, 42, 0.45);
}

.facebook-page .login-card,
.mail-page .login-card {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.08);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.facebook-page .login-card h1,
.mail-page .login-card h1 {
  color: rgba(15, 23, 42, 0.92);
}

.facebook-page .login-subtitle,
.mail-page .login-subtitle {
  color: rgba(15, 23, 42, 0.55);
}

.facebook-page .login-form label,
.mail-page .login-form label {
  color: rgba(15, 23, 42, 0.80);
}

.facebook-page .login-form input:-webkit-autofill,
.mail-page .login-form input:-webkit-autofill {
  -webkit-text-fill-color: rgba(15, 23, 42, 0.92) !important;
  box-shadow: 0 0 0px 1000px #ffffff inset !important;
}

/* WhatsApp login */
.whatsapp-page .login-card {
  background: var(--wa-panel);
  border-color: var(--wa-border);
}

.whatsapp-page .login-card h1 {
  color: rgba(255, 255, 255, 0.92);
}

.whatsapp-page .login-subtitle {
  color: var(--wa-text-secondary);
}

.whatsapp-page .login-form label {
  color: rgba(255, 255, 255, 0.80);
}

/* Instagram login */
.instagram-page .login-card {
  background: var(--ig-surface);
  border-color: var(--ig-border);
}


/* ======================================================================
   §7  RESPONSIVE
====================================================================== */

/* ── Tablet ── */
@media (max-width: 1024px) {
  :root {
    --topbar-height: 56px;
  }

  .message-list-wrap {
    min-width: 260px;
  }
}

/* ── Mobile ── */
@media (max-width: 768px) {
  /* Sidebar becomes a drawer */
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    width: min(85vw, 320px);
    transform: translateX(-102%);
    transition: transform var(--t3) var(--ease);
    box-shadow: var(--sh3);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-toggle,
  .sidebar-close {
    display: inline-flex;
  }

  /* Stack list + detail vertically */
  .content-wrap {
    flex-direction: column;
  }

  .message-list-wrap {
    width: 100%;
    min-width: 0;
    border-right: none;
    border-bottom: 1px solid var(--border);
    max-height: 44svh;
    flex-shrink: 0;
  }

  .detail-wrap {
    flex: 1;
    min-height: 56svh;
  }

  /* When detail is visible, hide list */
  .content-wrap.detail-visible .message-list-wrap {
    display: none;
  }

  .content-wrap.detail-visible .detail-wrap {
    min-height: 0;
    flex: 1;
  }

  /* Reply section always visible at bottom */
  .reply-section {
    position: sticky;
    bottom: 0;
    z-index: 10;
  }
}

/* ── Small phone ── */
@media (max-width: 480px) {
  .topbar {
    padding: 0 var(--s2);
  }

  .topbar-stats {
    flex-direction: column;
    gap: 2px;
    align-items: flex-end;
    font-size: var(--fs12);
  }

  .chat-messages {
    padding: var(--s3) var(--s2) var(--s2) var(--s2);
    gap: 6px;
  }

  .reply-section {
    padding: var(--s2) var(--s2) calc(var(--s2) + env(safe-area-inset-bottom));
  }

  .reply-section textarea {
    min-height: 60px;
  }

  .reply-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .reply-actions-buttons {
    width: 100%;
    justify-content: flex-end;
  }

  .bubble {
    max-width: 90%;
    padding: 8px 12px;
  }

  .message-item {
    padding: var(--s2);
  }

  .detail-header {
    padding: 0 var(--s2);
  }
}


/* ======================================================================
   §8  UTILITIES & ACCESSIBILITY
====================================================================== */

/* Hide "All" channel button on channel-specific pages */
body[data-hide-all="1"] .channel-btn[data-channel="all"] {
  display: none !important;
}

/* Theme routing via data attribute (fallback) */
body[data-channel="whatsapp"] {
  background: var(--wa-bg);
  color: var(--wa-text);
}

body[data-channel="instagram"] {
  background: var(--ig-bg);
  color: var(--ig-text);
}

body[data-channel="facebook"] {
  background: var(--ms-bg);
  color: var(--ms-text);
}

body[data-channel="mail"] {
  background: var(--gm-bg);
  color: var(--gm-text);
}

/* Ensure no horizontal overflow anywhere */
html,
body {
  overflow-x: hidden;
}

/* Minimum touch target size */
@media (pointer: coarse) {
  .btn,
  .btn-icon,
  .channel-btn,
  .message-item,
  .dropdown-item {
    min-height: 44px;
  }
}

/* High contrast mode support */
@media (forced-colors: active) {
  .btn-primary,
  .btn-danger {
    border: 2px solid ButtonText;
  }

  .status-badge {
    border: 1px solid;
  }

  .message-item.selected {
    border-left: 3px solid Highlight;
  }
}

/* Print — hide interactive elements */
@media print {
  .sidebar,
  .reply-section,
  .topbar,
  .sidebar-overlay {
    display: none !important;
  }

  .content-wrap {
    display: block;
  }

  .message-list-wrap {
    width: 100%;
    border: none;
  }
}
