/* NovaStudy v3.5.9 — Mint Halftone / reference-inspired full-viewport background
   Independent third appearance theme; Cyber and Black & Gold remain unchanged. */
html[data-theme="halftone"]{
 color-scheme:light;
 --bg:#f8fffc;
 --panel:#ffffffea;
 --panel2:#e8f8f3;
 --line:#add7cd;
 --text:#153b36;
 --muted:#476e67;
 --mint:#087f73;
 --purple:#067e83;
 --gold:#c88f3a;
 --gold-strong:#bf8c38;
 --gold-soft:#dbaa62;
 --gold-dark:#7c572a;
}
html[data-theme="halftone"] body{
 background-color:#f8fffc;
 background-image:linear-gradient(120deg,#ffffff55,#ffffff0c 45%,#fff6),url("./assets/mint-halftone-waves.svg");
 background-position:center center;
 background-repeat:no-repeat;
 background-size:cover;
 background-attachment:fixed;
 color:var(--text);
}
html[data-theme="halftone"] .app-shell{background:transparent}
html[data-theme="halftone"] .content{background:transparent}
html[data-theme="halftone"] .sidebar{
 background:#fffffff0;
 border-right:1px solid #8bc9b9;
 box-shadow:9px 0 24px #00745d0a;
 backdrop-filter:blur(13px);
}
html[data-theme="halftone"] .topbar{
 background:#ffffffdd;
 border-bottom:1px solid #a0d7c9;
 backdrop-filter:blur(15px);
}
html[data-theme="halftone"] .mobile-nav{
 background:#fffffff2;
 border-top:1px solid #8cc9bb;
 backdrop-filter:blur(14px);
 box-shadow:0 -8px 30px #0a8a6d1d;
}
html[data-theme="halftone"] .mobile-nav button{color:#356c62}
html[data-theme="halftone"] .mobile-nav button.active{color:#057769;background:#d2f6eb}
html[data-theme="halftone"] .brand strong,
html[data-theme="halftone"] .view-title,
html[data-theme="halftone"] .panel-title,
html[data-theme="halftone"] .stat-value{color:#163f37}
html[data-theme="halftone"] .brand small,
html[data-theme="halftone"] .sidebar-caption,
html[data-theme="halftone"] .sidebar-footer,
html[data-theme="halftone"] .breadcrumb-muted,
html[data-theme="halftone"] .app-footer,
html[data-theme="halftone"] .nav-arrow{color:#4f8176}
html[data-theme="halftone"] .brand-symbol,
html[data-theme="halftone"] .avatar-button{
 color:#ffffff;
 background:linear-gradient(130deg,#059a84,#69dbc4);
 border:1px solid #158a7b;
 box-shadow:0 8px 20px #17a58b40;
}
html[data-theme="halftone"] .nav-btn{color:#315f58}
html[data-theme="halftone"] .nav-btn:hover,
html[data-theme="halftone"] .nav-btn.active{
 color:#064c42;
 background:linear-gradient(100deg,#d6f9ed,#c4ecdfb8);
 border-color:#82cdbb;
}
html[data-theme="halftone"] .nav-ico,
html[data-theme="halftone"] .eyebrow,
html[data-theme="halftone"] .section-caption,
html[data-theme="halftone"] .stat-icon,
html[data-theme="halftone"] .theme-symbol{color:#087e71}
html[data-theme="halftone"] .clock,
html[data-theme="halftone"] .breadcrumb{color:#265e54}
html[data-theme="halftone"] .status-pill,
html[data-theme="halftone"] .chip{
 background:#dff8ec;
 color:#126556;
 border:1px solid #8acfb8;
}
html[data-theme="halftone"] .live-dot{background:#13a685;box-shadow:0 0 9px #42d8b3}
html[data-theme="halftone"] .hero,
html[data-theme="halftone"] .insight-hero{
 background:linear-gradient(115deg,#ffffffed,#eefcf6dd);
 color:#163f37;
 border:1px solid #89cdbd;
 box-shadow:0 16px 36px #087a6220;
}
html[data-theme="halftone"] .hero p{color:#3c7064}
html[data-theme="halftone"] .orbit{
 border-color:#2bb59a;
 box-shadow:0 0 0 19px #b1efdf92,0 0 0 40px #c6f7ec66,0 0 40px #7adbc559;
}
html[data-theme="halftone"] .orbit-core{color:#0b8b79;text-shadow:0 0 20px #66d5bd}
html[data-theme="halftone"] .orbit-core small{color:#177969}
html[data-theme="halftone"] .panel,
html[data-theme="halftone"] .cm-panel{
 background:#fffffff0;
 border-color:#9dcfc3;
 color:#173a35;
 box-shadow:0 12px 28px #08796119;
 backdrop-filter:blur(7px);
}
html[data-theme="halftone"] .subject-card,
html[data-theme="halftone"] .insight-stat,
html[data-theme="halftone"] .insight-action,
html[data-theme="halftone"] .hub-topic,
html[data-theme="halftone"] .hub-metric,
html[data-theme="halftone"] .hub-record,
html[data-theme="halftone"] .hub-project,
html[data-theme="halftone"] .study-planner-card,
html[data-theme="halftone"] .study-preview-day{
 background:#f5fffb;
 border-color:#a4d9cc;
 color:#1d463d;
}
html[data-theme="halftone"] .primary-btn{
 background:linear-gradient(130deg,#0a9c84,#067d72);
 color:#fff;
 border-color:#117c6f;
 box-shadow:0 8px 20px #13a28b30;
}
html[data-theme="halftone"] .secondary-btn,
html[data-theme="halftone"] .outline-button,
html[data-theme="halftone"] .tiny-btn,
html[data-theme="halftone"] .modal-close,
html[data-theme="halftone"] .import-label{
 background:#eafbf4;
 color:#205e52;
 border-color:#8fcfbe;
}
html[data-theme="halftone"] .secondary-btn:hover,
html[data-theme="halftone"] .outline-button:hover,
html[data-theme="halftone"] .tiny-btn:hover{background:#c6f1e3;border-color:#43af98}
html[data-theme="halftone"] .danger-btn{background:#fff0f0;color:#9d303d;border-color:#e0b2b7}
html[data-theme="halftone"] .chip,
html[data-theme="halftone"] .day-pill,
html[data-theme="halftone"] .filter-chip,
html[data-theme="halftone"] .hub-tab{
 background:#e6f9f2;
 color:#27685b;
 border-color:#a0d7c6;
}
html[data-theme="halftone"] .day-pill.active,
html[data-theme="halftone"] .filter-chip.active,
html[data-theme="halftone"] .hub-tab.is-active{
 background:#b6ecda;
 color:#075c50;
 border-color:#43a991;
}
html[data-theme="halftone"] .time-label,
html[data-theme="halftone"] .priority.low{color:#107e6c}
html[data-theme="halftone"] .task-main small,
html[data-theme="halftone"] .session-text small,
html[data-theme="halftone"] .time-label small,
html[data-theme="halftone"] .day-pill small{color:#50776d}
html[data-theme="halftone"] .task-row,
html[data-theme="halftone"] .timeline-card,
html[data-theme="halftone"] .separator{border-color:#b6dace}
html[data-theme="halftone"] input,
html[data-theme="halftone"] select,
html[data-theme="halftone"] textarea{
 background:#fffefa;
 border:1px solid #94cabd;
 color:#143f34;
 accent-color:#0b947e;
}
html[data-theme="halftone"] input::placeholder,
html[data-theme="halftone"] textarea::placeholder{color:#6a9085}
html[data-theme="halftone"] button:focus-visible,
html[data-theme="halftone"] input:focus-visible,
html[data-theme="halftone"] select:focus-visible,
html[data-theme="halftone"] textarea:focus-visible{
 outline:3px solid #059b86;
 outline-offset:2px;
}
html[data-theme="halftone"] .field label,
html[data-theme="halftone"] .form-grid label{color:#285d50}
html[data-theme="halftone"] .hint-banner,
html[data-theme="halftone"] .cm-message,
html[data-theme="halftone"] .hub-note,
html[data-theme="halftone"] .reminder-disclaimer{
 background:#e1f8f0;
 color:#236454;
 border-color:#a0d8c7;
}
html[data-theme="halftone"] .modal,
html[data-theme="halftone"] dialog{
 background:#f7fffc;
 color:#133b32;
 border-color:#8ccbbb;
}
html[data-theme="halftone"] .modal::backdrop{background:#17453c66}
html[data-theme="halftone"] .toast{
 background:#f4fffa;
 color:#1e5a4b;
 border-color:#6cbea9;
}
html[data-theme="halftone"] .theme-switch{
 background:#e3f9f1;
 border-color:#69bda8;
 color:#0c6256;
 box-shadow:0 3px 12px #08735e18;
}
html[data-theme="halftone"] .appearance-panel,
html[data-theme="halftone"] .appearance-panel-v12{
 background:#f7fffc;
 border-color:#a3d6c8;
}
html[data-theme="halftone"] .theme-option{
 background:#fff;
 color:#173f34;
 border-color:#a8d6ca;
}
html[data-theme="halftone"] .theme-option.is-selected{border-color:#07846f;box-shadow:0 0 0 1px #058973,0 8px 18px #12695722}
html[data-theme="halftone"] .theme-preview-halftone{
 --preview-line:#8ed9c4;
 --preview-bg:#fafffd;
 --preview-accent:#27baa0;
 --preview-light:#bff6e3;
 background:#ffffff url("./assets/mint-halftone-waves.svg") center / cover no-repeat;
}
html[data-theme="halftone"] .theme-preview-halftone .preview-top{background:#eafaf4cc}
html[data-theme="halftone"] .theme-preview-halftone .preview-main b{background:linear-gradient(90deg,#92e3cc,#fffffff0)}
/* The third theme's gallery preview also appears while another theme is active. */
.theme-preview-halftone{
 --preview-line:#8ed9c4;
 --preview-bg:#fafffd;
 --preview-accent:#27baa0;
 --preview-light:#bff6e3;
 background:#ffffff url("./assets/mint-halftone-waves.svg") center / cover no-repeat;
}
html[data-theme="halftone"] .settings-tool-link,
html[data-theme="halftone"] .cm-chapter-shell,
html[data-theme="halftone"] .cm-chapter,
html[data-theme="halftone"] .cm-topic,
html[data-theme="halftone"] .cm-file-item,
html[data-theme="halftone"] .cm-file,
html[data-theme="halftone"] .cm-assignment,
html[data-theme="halftone"] .cm-note-block,
html[data-theme="halftone"] .cm-owner-panel,
html[data-theme="halftone"] .cm-stats>span,
html[data-theme="halftone"] .settings-account-option{
 background:#f2fdf8;
 color:#22574b;
 border-color:#9bcebf;
}
html[data-theme="halftone"] .cm-chapter-heading,
html[data-theme="halftone"] .cm-chapter-toggle{color:#16493c}
html[data-theme="halftone"] .cm-chapter-inner{border-color:#a6d6c6}
html[data-theme="halftone"] .cm-panel input,
html[data-theme="halftone"] .cm-panel textarea{background:#fffefa;color:#19473b;border-color:#8fcabb}
html[data-theme="halftone"] .cm-upload{color:#097969;border-color:#28ad94}
html[data-theme="halftone"] .cm-delete-confirm{background:#fff3f2;color:#8f3941}
html[data-theme="halftone"] .auth-monogram,
html[data-theme="halftone"] .google-signin-btn{color:#255749}
html[data-theme="halftone"] .auth-state,
html[data-theme="halftone"] .cloud-counts,
html[data-theme="halftone"] .auth-summary{
 background:#eefbf5;
 border-color:#a1d5c7;
 color:#225d50;
}
html[data-theme="halftone"] .reminder-bell{color:#096d5d}
html[data-theme="halftone"] .app-footer{background:#ffffffe0;border-color:#afdcce}
html[data-theme="halftone"] .cm-legacy{border-color:#add7cd}
@media(max-width:660px){
 html[data-theme="halftone"] body{background-attachment:scroll;background-size:auto 100%;background-position:50% 50%}
 html[data-theme="halftone"] .sidebar{backdrop-filter:none}
 html[data-theme="halftone"] .topbar{background:#fffffff2}
 html[data-theme="halftone"] .mobile-nav{background:#fffffff3}
}
@media(prefers-reduced-motion:reduce){
 html[data-theme="halftone"] *{scroll-behavior:auto}
}

/* Gallery always displays all three choices, regardless of active theme. */
.theme-gallery{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:740px){.theme-gallery{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:480px){.theme-gallery{grid-template-columns:1fr}}
html[data-theme="halftone"] .settings-tool-link:hover,
html[data-theme="halftone"] .settings-account-option.selected{background:#d8f7eb;border-color:#56b8a1;color:#115e50}
html[data-theme="halftone"] .hub-alert,
html[data-theme="halftone"] .reminder-error,
html[data-theme="halftone"] .auth-error{color:#8b303a}
html[data-theme="halftone"] .cm-root .cm-file-actions .danger-btn,
html[data-theme="halftone"] .cm-root .cm-section-actions .danger-btn{color:#963847;background:#fff3f2;border-color:#e2a5af}
html[data-theme="halftone"] .settings-account-suite .settings-account-modules>.panel{background:transparent!important;box-shadow:none!important;border-color:#acd7c9!important}
html[data-theme="halftone"] .hub-num,
html[data-theme="halftone"] .subject-initial{color:#126e60}

/* v3.5.12: compositor-friendly Mint Halftone scrolling.
   The SVG now contains 75 dotted wave paths instead of nearly 10,000 DOM shapes.
   Do not use background-attachment:fixed with large transparent, blurred cards. */
html[data-theme="halftone"] body{
 background-attachment:scroll;
 background-repeat:repeat-y;
 background-size:100% auto;
}
html[data-theme="halftone"] .sidebar,
html[data-theme="halftone"] .topbar,
html[data-theme="halftone"] .mobile-nav,
html[data-theme="halftone"] .panel,
html[data-theme="halftone"] .cm-panel{
 backdrop-filter:none;
 -webkit-backdrop-filter:none;
}
html[data-theme="halftone"] .panel,
html[data-theme="halftone"] .cm-panel{
 box-shadow:0 3px 14px #08796113;
 background:#fffffff4;
}
html[data-theme="halftone"] .topbar,
html[data-theme="halftone"] .sidebar,
html[data-theme="halftone"] .mobile-nav{
 background:#fffffff2;
}
@media(max-width:660px){
 html[data-theme="halftone"] body{
  background-attachment:scroll;
  background-size:auto 760px;
  background-repeat:repeat;
 }
 html[data-theme="halftone"] .panel,
 html[data-theme="halftone"] .cm-panel{box-shadow:0 2px 8px #0879610d}
}