/* CampusHub global theme layer - Module 12.7 */
html[data-theme="dark"]{
  --primary:#5b91ff;
  --accent:#2dd4bf;
  --dark:#e9f0fb;
  --muted:#9aabc1;
  --bg:#07111f;
  --white:#0d1b2d;
  --border:#22334c;
  --shadow:0 12px 32px rgba(0,0,0,.28);
  --cht-ink:#e9f0fb;
  --cht-muted:#9aabc1;
  --cht-line:#22334c;
  --cht-soft:#091625;
  --cht-card:#0d1b2d;
  --ch-line:#22334c;
  --ch-soft:#091625;
}

html[data-theme="dark"] body,
html[data-theme="dark"] .app-shell{
  background:#07111f!important;
  color:#e9f0fb!important;
}
html[data-theme="dark"] .topbar{
  background:rgba(8,18,32,.96)!important;
  border-color:#22334c!important;
}
html[data-theme="dark"] .brand-name,
html[data-theme="dark"] .section-title,
html[data-theme="dark"] h1,
html[data-theme="dark"] h2,
html[data-theme="dark"] h3,
html[data-theme="dark"] h4{color:#eef4ff;}
html[data-theme="dark"] .brand-sub,
html[data-theme="dark"] .muted,
html[data-theme="dark"] .help-text{color:#9aabc1!important;}

html[data-theme="dark"] .main-content,
html[data-theme="dark"] .right-panel,
html[data-theme="dark"] .card,
html[data-theme="dark"] .sidebar-nav,
html[data-theme="dark"] .icon-btn,
html[data-theme="dark"] .btn-light{
  background:#0d1b2d!important;
  color:#e9f0fb!important;
  border-color:#22334c!important;
}
html[data-theme="dark"] .nav-item{color:#d7e2f1!important;}
html[data-theme="dark"] .nav-item:hover,
html[data-theme="dark"] .nav-item.active{
  background:#142846!important;
  color:#7eacff!important;
}

html[data-theme="dark"] input:not([type="checkbox"]):not([type="radio"]):not([type="file"]),
html[data-theme="dark"] textarea,
html[data-theme="dark"] select{
  background:#0a1727!important;
  color:#e9f0fb!important;
  border-color:#2a3c56!important;
}
html[data-theme="dark"] input::placeholder,
html[data-theme="dark"] textarea::placeholder{color:#71839a!important;}
html[data-theme="dark"] option{background:#0a1727;color:#e9f0fb;}

html[data-theme="dark"] .cc-m56-mobile-nav{
  background:rgba(8,18,32,.985)!important;
  border-color:#22334c!important;
  box-shadow:0 -8px 24px rgba(0,0,0,.35)!important;
}
html[data-theme="dark"] .cc-m56-nav-item{color:#8fa2ba!important;}
html[data-theme="dark"] .cc-m56-nav-item.active{
  background:#edf4ff!important;
  color:#0a1727!important;
}
html[data-theme="dark"] .cc-m56-more-sheet{
  background:#0d1b2d!important;
  border-color:#22334c!important;
}
html[data-theme="dark"] .cc-m56-more-head{border-color:#22334c!important;}
html[data-theme="dark"] .cc-m56-more-head h3{color:#eef4ff!important;}
html[data-theme="dark"] .cc-m56-more-head p{color:#9aabc1!important;}
html[data-theme="dark"] .cc-m56-more-close{background:#14243a!important;color:#eef4ff!important;}

/* Premium feed / discovery / communication */
html[data-theme="dark"] .feed-card,
html[data-theme="dark"] .ch-composer-card,
html[data-theme="dark"] .premium-chats .chats-page-card,
html[data-theme="dark"] .premium-notifications .notifications-page-card,
html[data-theme="dark"] .premium-conversation .chat-main-card,
html[data-theme="dark"] .premium-profile .profile-stats-inline-card,
html[data-theme="dark"] .premium-profile .profile-membership-card,
html[data-theme="dark"] .premium-profile .main-content>section.card:not(.profile-header-card),
html[data-theme="dark"] .premium-profile .profile-side-card{
  background:#0d1b2d!important;
  border-color:#22334c!important;
  color:#e9f0fb!important;
}
html[data-theme="dark"] .premium-conversation .messages-area{background:#091625!important;}
html[data-theme="dark"] .premium-conversation .message-bubble.theirs .message-content{
  background:#132238!important;
  color:#eef4ff!important;
  border-color:#253a57!important;
}
html[data-theme="dark"] .premium-notifications .notification-item{
  background:#0d1b2d!important;
}
html[data-theme="dark"] .premium-notifications .notification-item.is-unread{
  background:linear-gradient(90deg,#112742,#0f2037)!important;
  border-color:#27476d!important;
}
html[data-theme="dark"] .premium-notifications .notification-message{color:#dce7f5!important;}

/* Student tools */
html[data-theme="dark"] .ai-study-page .ai-card,
html[data-theme="dark"] .ai-history-page .ai-h-card,
html[data-theme="dark"] .ai-history-page .ai-h-item,
html[data-theme="dark"] .aiq-card,
html[data-theme="dark"] .aiqt-card,
html[data-theme="dark"] .aiqr-card,
html[data-theme="dark"] .aiqh-card,
html[data-theme="dark"] .aiqh-item,
html[data-theme="dark"] .study-card,
html[data-theme="dark"] .reminder-card,
html[data-theme="dark"] .course-panel,
html[data-theme="dark"] .course-card,
html[data-theme="dark"] .course-filter-more,
html[data-theme="dark"] .course-profile-details,
html[data-theme="dark"] .sch-card,
html[data-theme="dark"] .sch-item,
html[data-theme="dark"] .pq-card,
html[data-theme="dark"] .pq-item,
html[data-theme="dark"] .pq-advanced-filters,
html[data-theme="dark"] .cv-card,
html[data-theme="dark"] .cv-toolbar,
html[data-theme="dark"] .cv-review-card{
  background:#0d1b2d!important;
  color:#e9f0fb!important;
  border-color:#22334c!important;
}
html[data-theme="dark"] .ai-study-page .ai-radio-card,
html[data-theme="dark"] .ai-study-page .ai-doc-item,
html[data-theme="dark"] .aiq-page .aiq-item,
html[data-theme="dark"] .aiqt-option,
html[data-theme="dark"] .aiqr-stat,
html[data-theme="dark"] .reminder-option,
html[data-theme="dark"] .course-chip{
  background:#101f33!important;
  color:#dce7f5!important;
  border-color:#263a55!important;
}
html[data-theme="dark"] .ai-study-page .ai-radio-card:has(input:checked),
html[data-theme="dark"] .aiqt-option:has(input:checked){
  background:#112a4d!important;
  border-color:#4377bd!important;
}
html[data-theme="dark"] .course-filter-more summary,
html[data-theme="dark"] .course-profile-details summary,
html[data-theme="dark"] .pq-advanced-filters summary{color:#e9f0fb!important;}

/* More hub */
html[data-theme="dark"] .ch-secondary-page .ch-tool-card,
html[data-theme="dark"] .ch-more-legal{
  background:#0d1b2d!important;
  color:#e9f0fb!important;
  border-color:#22334c!important;
}
html[data-theme="dark"] .ch-secondary-page .ch-tool-copy strong{color:#e9f0fb!important;}

/* Account settings */
html[data-theme="dark"] .settings-card,
html[data-theme="dark"] .settings-stats-card,
html[data-theme="dark"] .settings-item{
  background:#0d1b2d!important;
  border-color:#22334c!important;
  color:#e9f0fb!important;
}
html[data-theme="dark"] .settings-item:hover{background:#102139!important;}
html[data-theme="dark"] .settings-item-text strong{color:#e9f0fb!important;}
html[data-theme="dark"] .settings-item-text span,
html[data-theme="dark"] .settings-card-head p{color:#9aabc1!important;}
html[data-theme="dark"] .settings-note{background:#101f33!important;color:#cbd8ea!important;border-color:#263a55!important;}

/* Theme selector */
.ch-theme-card{
  background:#fff;
  border:1px solid #e2e8f0;
  border-radius:18px;
  padding:14px;
}
.ch-theme-card h3{margin:0 0 5px;font-size:15px;color:#0f172a;}
.ch-theme-card p{margin:0 0 12px;color:#64748b;font-size:12px;}
.ch-theme-options{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:8px;
}
.ch-theme-option{
  min-height:42px;
  border:1px solid #dbe3ee;
  background:#f8fafc;
  color:#334155;
  border-radius:12px;
  font-weight:800;
  cursor:pointer;
}
.ch-theme-option.is-active{
  background:#0f172a;
  color:#fff;
  border-color:#0f172a;
}
html[data-theme="dark"] .ch-theme-card{
  background:#0d1b2d;
  border-color:#22334c;
}
html[data-theme="dark"] .ch-theme-card h3{color:#eef4ff;}
html[data-theme="dark"] .ch-theme-card p{color:#9aabc1;}
html[data-theme="dark"] .ch-theme-option{
  background:#101f33;
  color:#cbd8ea;
  border-color:#2a3c56;
}
html[data-theme="dark"] .ch-theme-option.is-active{
  background:#edf4ff;
  color:#07111f;
  border-color:#edf4ff;
}

/* Editing profile */
html[data-theme="dark"] .edit-profile-card .image-upload-trigger{
  background:#0a1727!important;
  border-color:#22334c!important;
}


/* Module 12.7.1 - Light default + dark mode polish */
html[data-theme="dark"]{
  --ch-bg:#07111f;--ch-card:#0d1b2d;--ch-text:#edf4ff;--ch-muted:#9cadc3;
  --ch-line:#23354e;--ch-soft-blue:#10243e;--ch-soft-teal:#0d2b2c;
  --ch-shadow:0 16px 38px rgba(0,0,0,.30);--ch-shadow-soft:0 10px 28px rgba(0,0,0,.23);
}
html[data-theme="dark"] body .topbar{background:linear-gradient(135deg,#081a38 0%,#0c2a56 62%,#123a68 100%)!important;border-bottom-color:#24405f!important}
html[data-theme="dark"] body .topbar .top-search{background:#0d1b2d!important;border-color:#314763!important;box-shadow:none!important}
html[data-theme="dark"] body .topbar .top-search>i{color:#91a6c0!important}
html[data-theme="dark"] body .topbar .top-search input[type="text"],html[data-theme="dark"] body .topbar .top-search input[type="search"]{background:transparent!important;color:#edf4ff!important;border:0!important;box-shadow:none!important}
html[data-theme="dark"] body .topbar .top-search input::placeholder{color:#8193aa!important}
html[data-theme="dark"] body .topbar .icon-btn{background:#102441!important;border-color:#294462!important;color:#edf4ff!important}

html[data-theme="dark"] body .app-sidebar{scrollbar-color:#4d627c #122035!important}
html[data-theme="dark"] body .app-sidebar::-webkit-scrollbar-track{background:#122035!important}
html[data-theme="dark"] body .app-sidebar::-webkit-scrollbar-thumb{background:#4d627c!important;border-color:#122035!important}
html[data-theme="dark"] body .sidebar-card{background:#0d1b2d!important;border-color:#23354e!important;box-shadow:0 12px 30px rgba(0,0,0,.24)!important}
html[data-theme="dark"] body .sidebar-profile{background:linear-gradient(180deg,#102139,#0d1b2d)!important}
html[data-theme="dark"] body .sidebar-profile h4,html[data-theme="dark"] body .sidebar-mini h5{color:#edf4ff!important}
html[data-theme="dark"] body .sidebar-profile p,html[data-theme="dark"] body .sidebar-mini p,html[data-theme="dark"] body .sidebar-label{color:#91a4bc!important}
html[data-theme="dark"] body .sidebar-avatar,html[data-theme="dark"] body .sidebar-avatar-fallback{border-color:#31455f!important;background:#16283f!important;color:#dce8f7!important}
html[data-theme="dark"] body .sidebar-role-pill{background:#102f5a!important;color:#7eb0ff!important}
html[data-theme="dark"] body .sidebar-nav{background:#0d1b2d!important}
html[data-theme="dark"] body .sidebar-link{color:#bac8da!important}
html[data-theme="dark"] body .sidebar-link:hover{background:#122640!important;color:#edf4ff!important}
html[data-theme="dark"] body .sidebar-link.active{background:#112d56!important;color:#6fa7ff!important}
html[data-theme="dark"] body .sidebar-divider{background:#22364f!important}

html[data-theme="dark"] body:has(.premium-home){background:radial-gradient(circle at 12% 2%,rgba(45,140,255,.07),transparent 28%),radial-gradient(circle at 92% 8%,rgba(21,198,181,.05),transparent 26%),#07111f!important}
html[data-theme="dark"] body .premium-home .ch-home-intro h1,html[data-theme="dark"] body .premium-home .ch-feed-heading h2{color:#edf4ff!important}
html[data-theme="dark"] body .premium-home .ch-home-intro p,html[data-theme="dark"] body .premium-home .ch-feed-heading p{color:#91a4bc!important}
html[data-theme="dark"] body .premium-home .ch-home-intro-badge{background:#10233b!important;color:#83b3ff!important;border-color:#28425f!important;box-shadow:none!important}
html[data-theme="dark"] body .premium-home .ch-composer-card{background:#0d1b2d!important;border-color:#23354e!important;box-shadow:0 14px 34px rgba(0,0,0,.24)!important}
html[data-theme="dark"] body .premium-home .ch-composer-avatar{border-color:#253a55!important}
html[data-theme="dark"] body .premium-home .ch-composer-main .composer-one-line{background:#091625!important;color:#edf4ff!important;border-color:#2a3e59!important}
html[data-theme="dark"] body .premium-home .ch-composer-main .composer-one-line:focus{background:#0b1a2c!important;border-color:#4d7fbd!important}
html[data-theme="dark"] body .premium-home .ch-composer-meta,html[data-theme="dark"] body .premium-home .ch-composer-meta strong{color:#91a4bc!important}
html[data-theme="dark"] body .premium-home .ch-composer-card .composer-extras{background:#0a1828!important;border-color:#253a55!important}
html[data-theme="dark"] body .premium-home .ch-home-quick-actions{border-top-color:#22364f!important}
html[data-theme="dark"] body .premium-home .ch-quick-action{background:#101f33!important;color:#dfe9f6!important;border-color:#263b56!important;box-shadow:none!important}
html[data-theme="dark"] body .premium-home .ch-quick-action:hover{background:#142a47!important;border-color:#36577c!important}

html[data-theme="dark"] body .premium-home #feedWrap .feed-card{background:#0d1b2d!important;border-color:#23354e!important;box-shadow:0 10px 26px rgba(0,0,0,.20)!important}
html[data-theme="dark"] body .premium-home .feed-card .user-link,html[data-theme="dark"] body .premium-home .feed-card strong,html[data-theme="dark"] body .premium-home .feed-card .post-author,html[data-theme="dark"] body .premium-home .feed-card .post-user-name{color:#edf4ff!important}
html[data-theme="dark"] body .premium-home .feed-card .muted,html[data-theme="dark"] body .premium-home .feed-card .post-meta,html[data-theme="dark"] body .premium-home .feed-card small{color:#8fa2ba!important}
html[data-theme="dark"] body .premium-home .feed-card .post-body{color:#d6e1ef!important}
html[data-theme="dark"] body .premium-home .feed-card .post-stats{border-color:#22364f!important;color:#8fa2ba!important}
html[data-theme="dark"] body .premium-home .feed-card .stat-link,html[data-theme="dark"] body .premium-home .feed-card .likePostBtn,html[data-theme="dark"] body .premium-home .feed-card .commentBtn,html[data-theme="dark"] body .premium-home .feed-card .sharePostBtn,html[data-theme="dark"] body .premium-home .feed-card .post-action-btn{color:#a7b7ca!important}
html[data-theme="dark"] body .premium-home .feed-card .likePostBtn:hover,html[data-theme="dark"] body .premium-home .feed-card .commentBtn:hover,html[data-theme="dark"] body .premium-home .feed-card .sharePostBtn:hover,html[data-theme="dark"] body .premium-home .feed-card .post-action-btn:hover{background:#10243b!important}
html[data-theme="dark"] body .premium-home #feedWrap .feed-loading,html[data-theme="dark"] body .premium-home #feedWrap .empty-state{background:#0d1b2d!important;border-color:#2b405a!important;color:#91a4bc!important}

html[data-theme="dark"] body .layout.premium-home .right-panel{background:#0a1727!important;border-color:#23354e!important}
html[data-theme="dark"] body .layout.premium-home .right-panel .card{background:#0d1b2d!important;border-color:#23354e!important;box-shadow:0 10px 26px rgba(0,0,0,.18)!important}
html[data-theme="dark"] body .layout.premium-home .right-panel .section-title{color:#edf4ff!important}
html[data-theme="dark"] body .layout.premium-home .right-panel .btn-light{background:#10233a!important;color:#dce7f5!important;border-color:#2b415d!important}
html[data-theme="dark"] body .layout.premium-home .right-panel .btn-light:hover{background:#142c49!important}

html[data-theme="dark"] body .premium-discovery .ch-discovery-surface,html[data-theme="dark"] body .premium-discovery .ch-person-card,html[data-theme="dark"] body .premium-discovery .ch-mini-institutions,html[data-theme="dark"] body .premium-discovery .ch-institution-card,html[data-theme="dark"] body .premium-discovery .ch-premium-empty{background:#0d1b2d!important;border-color:#23354e!important;color:#edf4ff!important}
html[data-theme="dark"] body .premium-discovery .ch-discovery-searchbox,html[data-theme="dark"] body .premium-discovery .ch-discovery-searchbox:focus-within{background:#091625!important;border-color:#2b405b!important}
html[data-theme="dark"] body .premium-discovery .ch-discovery-clear,html[data-theme="dark"] body .premium-discovery .ch-link-institution-btn{background:#10233a!important;border-color:#2b415d!important;color:#cddaf0!important}

html[data-theme="dark"] body .premium-chats .premium-page-head,html[data-theme="dark"] body .premium-chats .chats-page-card,html[data-theme="dark"] body .premium-chats #conversationListWrap,html[data-theme="dark"] body .premium-chats .campus-chat-row,html[data-theme="dark"] body .premium-chats .right-panel{background:#0d1b2d!important;border-color:#23354e!important;color:#edf4ff!important}
html[data-theme="dark"] body .premium-chats .campus-chat-row:has(.chat-unread-badge){background:#102b4b!important}
html[data-theme="dark"] body .premium-chats .campus-chat-name-text{color:#edf4ff!important}
html[data-theme="dark"] body .premium-chats .campus-chat-preview,html[data-theme="dark"] body .premium-chats .campus-chat-username,html[data-theme="dark"] body .premium-chats .campus-chat-time{color:#91a4bc!important}
html[data-theme="dark"] body .premium-chats .campus-chat-avatar{border-color:#263b56!important}

html[data-theme="dark"] body .premium-conversation .chat-main-card,html[data-theme="dark"] body .premium-conversation .chat-side-card,html[data-theme="dark"] body .premium-conversation .chat-header,html[data-theme="dark"] body .premium-conversation .chat-side-head,html[data-theme="dark"] body .premium-conversation .chat-input-wrap{background:#0d1b2d!important;border-color:#23354e!important}
html[data-theme="dark"] body .premium-conversation .conversation-message-wrap{background:linear-gradient(180deg,#081421,#091827)!important}
html[data-theme="dark"] body .premium-conversation .chat-back,html[data-theme="dark"] body .premium-conversation .chat-refresh{background:#10233a!important;color:#dce7f5!important;border-color:#2b415d!important}
html[data-theme="dark"] body .premium-conversation .chat-peer strong,html[data-theme="dark"] body .premium-conversation .chat-side-head h3{color:#edf4ff!important}
html[data-theme="dark"] body .premium-conversation .message-bubble.theirs,html[data-theme="dark"] body .premium-conversation .message-bubble.theirs .message-content{background:#132238!important;color:#edf4ff!important;border-color:#2a405d!important}
html[data-theme="dark"] body .premium-conversation .chat-input{background:#091625!important;color:#edf4ff!important;border-color:#2a3e59!important}
html[data-theme="dark"] body .premium-conversation .chat-friend-card:hover{background:#10243b!important;border-color:#2b405b!important}

html[data-theme="dark"] body .premium-notifications .notifications-page-card,html[data-theme="dark"] body .premium-notifications .notifications-page-head,html[data-theme="dark"] body .premium-notifications .notification-item,html[data-theme="dark"] body .premium-notifications .right-panel{background:#0d1b2d!important;border-color:#23354e!important}
html[data-theme="dark"] body .premium-notifications .notifications-page-title{color:#edf4ff!important}
html[data-theme="dark"] body .premium-notifications .notification-item.is-unread{background:linear-gradient(90deg,#102b4b,#0f2239)!important;border-color:#294b70!important}
html[data-theme="dark"] body .premium-notifications .notification-item:hover{background:#10243b!important;border-color:#2b405b!important}
html[data-theme="dark"] body .premium-notifications .notification-message{color:#dce7f5!important}
html[data-theme="dark"] body .premium-notifications .notification-avatar{border-color:#263b56!important}

html[data-theme="dark"] body .premium-profile .profile-stats-inline-card,html[data-theme="dark"] body .premium-profile .profile-membership-card,html[data-theme="dark"] body .premium-profile .main-content>section.card:not(.profile-header-card),html[data-theme="dark"] body .premium-profile .profile-side-card{background:#0d1b2d!important;border-color:#23354e!important;color:#edf4ff!important}
html[data-theme="dark"] body .premium-profile .profile-stats-inline-item,html[data-theme="dark"] body .premium-profile .profile-stats-inline-btn{border-color:#22364f!important}
html[data-theme="dark"] body .premium-profile .profile-stats-inline strong{color:#edf4ff!important}
html[data-theme="dark"] body .premium-profile .profile-membership-card{background:linear-gradient(180deg,#0d1b2d,#0b1829)!important}
html[data-theme="dark"] body .premium-profile .profile-side-note{background:linear-gradient(135deg,#102642,#0e292c)!important;border-color:#284560!important}

html[data-theme="dark"] body #appSheet .app-sheet-panel,html[data-theme="dark"] body #appSheet .app-sheet-head,html[data-theme="dark"] body #appSheet .app-sheet-body{background:#0d1b2d!important;color:#edf4ff!important;border-color:#23354e!important}
html[data-theme="dark"] body #appSheet .one-line-comment-input{background:#091625!important;color:#edf4ff!important;border-color:#2a3e59!important}
html[data-theme="light"]{color-scheme:light}