/* =====================================================
   MojiVN — Global Stylesheet
   Màu lấy từ CONFIG.THEME qua applyTheme()
   ===================================================== */

:root {
  /* Fallback — bị ghi đè bởi applyTheme() */
  --color-primary:           #cd7a7b;
  --color-primary-container: #fddada;
  --color-on-primary:        #ffffff;
  --color-background:        #f0f4f9;
  --color-surface:           #ffffff;
  --color-surface-variant:   #f4f4f4;
  --color-outline:           #c4c7c5;
  --color-on-surface:        #1f1f1f;
  --color-on-surface-variant:#444746;
  --color-error:             #b3261e;

  /* Layout */
  --nav-width: 260px;
  --nav-width-sm: 72px;
  --topbar-height: 60px;
  --card-radius: 16px;
  --radius-sm: 8px;

  /* Shadow */
  --shadow-sm: 0 1px 4px rgba(0,0,0,.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,.08);

  /* MD compat */
  --md-sys-color-primary: var(--color-primary);
  --md-outlined-text-field-focus-outline-color: var(--color-primary);
  --md-outlined-text-field-focus-label-text-color: var(--color-primary);
  --md-filled-button-container-color: var(--color-primary);
  --md-linear-progress-active-indicator-color: var(--color-primary);
  --md-circular-progress-active-indicator-color: var(--color-primary);
}

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

body {
  font-family: 'Roboto', sans-serif;
  background: var(--color-background);
  color: var(--color-on-surface);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
button { cursor: pointer; font-family: inherit; }
img { display: block; }

/* ── App Shell ─────────────────────────────────── */
.app-shell {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar Nav ───────────────────────────────── */
.sidebar {
  width: var(--nav-width);
  background: var(--color-surface);
  border-right: 1px solid var(--color-outline);
  position: fixed; top: 0; left: 0; bottom: 0;
  display: flex; flex-direction: column;
  z-index: 100;
  transition: width .25s ease;
  overflow: hidden;
}
.sidebar-logo {
  display: flex; align-items: center; gap: 10px;
  padding: 20px 20px 16px;
  font-size: 20px; font-weight: 700;
  color: var(--color-primary);
  border-bottom: 1px solid var(--color-outline);
  flex-shrink: 0;
}
.sidebar-logo .logo-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.sidebar-logo .logo-icon svg { width: 22px; height: 22px; fill: #fff; }

.sidebar-nav { flex: 1; overflow-y: auto; padding: 12px 0; }
.nav-item {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 20px;
  border-radius: 12px; margin: 2px 8px;
  font-size: 15px; font-weight: 500;
  color: var(--color-on-surface-variant);
  transition: background .15s, color .15s;
  cursor: pointer; white-space: nowrap;
}
.nav-item:hover { background: var(--color-surface-variant); color: var(--color-on-surface); }
.nav-item.active { background: var(--color-primary-container); color: var(--color-primary); font-weight: 600; }
.nav-item .material-symbols-outlined { font-size: 22px; flex-shrink: 0; }
.nav-badge {
  margin-left: auto; background: var(--color-primary); color: #fff;
  font-size: 11px; font-weight: 700; padding: 2px 7px;
  border-radius: 999px; min-width: 20px; text-align: center;
}

.sidebar-user {
  padding: 12px 16px; border-top: 1px solid var(--color-outline);
  display: flex; align-items: center; gap: 10px;
  cursor: pointer; flex-shrink: 0;
}
.sidebar-user:hover { background: var(--color-surface-variant); }
.sidebar-user-info { flex: 1; min-width: 0; }
.sidebar-user-name { font-size: 14px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-user-handle { font-size: 12px; color: var(--color-on-surface-variant); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ── Main content ──────────────────────────────── */
.main-content {
  margin-left: var(--nav-width);
  flex: 1; min-width: 0;
  transition: margin-left .25s;
}
.page-content {
  max-width: 680px;
  margin: 0 auto;
  padding: 24px 16px;
}
.page-content.wide { max-width: 960px; }

/* ── Card ──────────────────────────────────────── */
.card {
  background: var(--color-surface);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

/* ── Post Card ─────────────────────────────────── */
.post-card {
  background: var(--color-surface);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-sm);
  margin-bottom: 12px;
  overflow: hidden;
}
.post-header {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 16px 0;
}
.post-header-info { flex: 1; }
.post-author { font-size: 14px; font-weight: 600; }
.post-meta { font-size: 12px; color: var(--color-on-surface-variant); }
.post-body { padding: 10px 16px; font-size: 15px; line-height: 1.55; white-space: pre-wrap; word-break: break-word; }
.post-media img, .post-media video {
  width: 100%; max-height: 520px; object-fit: cover; display: block;
}
.post-actions {
  display: flex; gap: 4px; padding: 8px 12px;
  border-top: 1px solid var(--color-outline);
}
.post-action-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 12px; border-radius: 8px;
  font-size: 13px; font-weight: 500; color: var(--color-on-surface-variant);
  background: none; border: none;
  transition: background .15s, color .15s;
}
.post-action-btn:hover { background: var(--color-surface-variant); color: var(--color-on-surface); }
.post-action-btn.liked { color: var(--color-primary); }
.post-action-btn .material-symbols-outlined { font-size: 20px; }

/* ── Compose ───────────────────────────────────── */
.compose-card {
  background: var(--color-surface);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-sm);
  padding: 16px; margin-bottom: 12px;
  display: flex; gap: 12px; align-items: flex-start;
}
.compose-input {
  flex: 1; border: none; outline: none;
  font-family: inherit; font-size: 15px;
  color: var(--color-on-surface);
  background: transparent; resize: none;
  min-height: 44px; padding-top: 10px;
  line-height: 1.5;
}
.compose-input::placeholder { color: var(--color-on-surface-variant); }
.compose-footer {
  display: flex; justify-content: flex-end; align-items: center;
  gap: 8px; padding-top: 12px; border-top: 1px solid var(--color-outline);
  margin-top: 8px;
}

/* ── Button styles ─────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 20px; border-radius: 999px;
  font-size: 14px; font-weight: 600; border: none;
  transition: filter .15s, transform .1s; cursor: pointer;
}
.btn:active { transform: scale(.97); }
.btn-primary {
  background: var(--color-primary); color: var(--color-on-primary);
}
.btn-primary:hover { filter: brightness(1.08); }
.btn-outline {
  background: transparent; color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary-container); }
.btn-ghost {
  background: none; color: var(--color-on-surface-variant);
  padding: 8px 12px;
}
.btn-ghost:hover { background: var(--color-surface-variant); color: var(--color-on-surface); }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-icon {
  width: 40px; height: 40px; border-radius: 50%;
  background: none; border: none;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-on-surface-variant);
  transition: background .15s;
}
.btn-icon:hover { background: var(--color-surface-variant); }
.btn-icon .material-symbols-outlined { font-size: 22px; }

/* ── Chip ──────────────────────────────────────── */
.chip {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 5px 12px; border-radius: 999px;
  font-size: 13px; font-weight: 500;
  background: var(--color-surface-variant);
  color: var(--color-on-surface-variant);
  border: none; cursor: pointer; transition: background .15s;
}
.chip:hover, .chip.active {
  background: var(--color-primary-container);
  color: var(--color-primary);
}

/* ── Divider ───────────────────────────────────── */
.divider { border: none; border-top: 1px solid var(--color-outline); margin: 0; }

/* ── Skeleton ──────────────────────────────────── */
.skeleton-card {
  display: flex; align-items: center; gap: 12px;
  padding: 16px; background: var(--color-surface);
  border-radius: var(--card-radius); margin-bottom: 12px;
}
.skel {
  background: linear-gradient(90deg, var(--color-surface-variant) 25%, #e8e8e8 50%, var(--color-surface-variant) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: 6px;
}
.skel-avatar { width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0; }
.skel-line { height: 14px; width: 100%; }
@keyframes shimmer { 0%{background-position:200% 0} 100%{background-position:-200% 0} }

/* ── Comment ───────────────────────────────────── */
.comment-item {
  display: flex; gap: 10px; padding: 10px 16px;
}
.comment-bubble {
  background: var(--color-surface-variant);
  border-radius: 12px 12px 12px 4px;
  padding: 8px 12px; flex: 1;
}
.comment-author { font-size: 13px; font-weight: 600; }
.comment-text { font-size: 14px; line-height: 1.5; }
.comment-meta { font-size: 11px; color: var(--color-on-surface-variant); margin-top: 4px; }

/* ── Input ─────────────────────────────────────── */
.input-field {
  width: 100%; padding: 11px 14px;
  border: 1.5px solid var(--color-outline);
  border-radius: 10px; font-size: 14px; font-family: inherit;
  color: var(--color-on-surface); background: var(--color-surface);
  outline: none; transition: border-color .15s;
}
.input-field:focus { border-color: var(--color-primary); }
.input-field::placeholder { color: var(--color-on-surface-variant); }

/* ── Modal overlay ─────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.45); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 500; opacity: 0; pointer-events: none;
  transition: opacity .2s;
}
.modal-overlay.open { opacity: 1; pointer-events: auto; }
.modal-box {
  background: var(--color-surface);
  border-radius: 20px; padding: 28px;
  width: min(480px, 92vw);
  box-shadow: 0 16px 48px rgba(0,0,0,.18);
  transform: translateY(20px); transition: transform .25s;
}
.modal-overlay.open .modal-box { transform: translateY(0); }

/* ── Notification badge ─────────────────────────── */
.badge {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 18px; height: 18px; padding: 0 5px;
  background: var(--color-primary); color: #fff;
  border-radius: 999px; font-size: 11px; font-weight: 700;
}

/* ── Responsive ─────────────────────────────────── */
@media (max-width: 900px) {
  :root { --nav-width: var(--nav-width-sm); }
  .sidebar-logo .logo-text,
  .nav-item .nav-label,
  .sidebar-user-info,
  .nav-badge { display: none; }
  .nav-item { justify-content: center; padding: 14px; }
}
@media (max-width: 600px) {
  .sidebar { display: none; }
  .main-content { margin-left: 0; padding-bottom: 72px; }
  .bottom-nav {
    display: flex !important;
    position: fixed; bottom: 0; left: 0; right: 0;
    background: var(--color-surface); border-top: 1px solid var(--color-outline);
    z-index: 100;
  }
}

.bottom-nav { display: none; }
.bottom-nav a {
  flex: 1; display: flex; flex-direction: column; align-items: center;
  padding: 10px 0; gap: 3px;
  font-size: 10px; color: var(--color-on-surface-variant);
}
.bottom-nav a.active { color: var(--color-primary); }
.bottom-nav .material-symbols-outlined { font-size: 24px; }

/* ── Scrollbar ───────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--color-outline); border-radius: 3px; }

/* ── Utility ─────────────────────────────────────── */
.flex { display: flex; }
.items-center { align-items: center; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.flex-1 { flex: 1; }
.text-sm { font-size: 13px; }
.text-muted { color: var(--color-on-surface-variant); }
.fw-600 { font-weight: 600; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mb-8 { margin-bottom: 8px; }
.hidden { display: none !important; }