/* ============================================================================
   LMS X — course-first design system (HANDOFF §20/§21)
   Shared, site-wide. Loaded on every frontend page from layouts/app.blade.php.
   `cf-` classes power bespoke sections (homepage, pricing); the overrides at the
   bottom re-skin the stock inner-page banner so all 59 pages match the homepage.
   ========================================================================== */

:root{
    --cf-primary:#5b57e0; --cf-primary-d:#4a46c4; --cf-ink:#131635; --cf-muted:#5b6079;
    --cf-line:#e7e7f2; --cf-bg-soft:#f6f6fc; --cf-accent:#8b87ff;
    --cf-grad:linear-gradient(135deg,#4a46c4 0%,#6d4bd6 55%,#8b57e0 100%);
}

/* ---- layout primitives ---- */
.cf-container{max-width:1200px;margin:0 auto;padding:0 20px;}
.cf-section{padding:64px 0;}
.cf-section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:32px;flex-wrap:wrap;}
.cf-section-head.cf-center{justify-content:center;text-align:center;}
.cf-section-title{font-size:30px;font-weight:800;color:var(--cf-ink);margin:0 0 6px;}
.cf-section-sub{color:var(--cf-muted);margin:0;font-size:16px;}
.cf-link{color:var(--cf-primary);font-weight:700;white-space:nowrap;text-decoration:none;}
.cf-link:hover{text-decoration:underline;}
.cf-muted{color:var(--cf-muted);}

/* ---- buttons ---- */
.cf-btn{display:inline-block;padding:13px 26px;border-radius:10px;font-weight:700;text-decoration:none;font-size:15px;transition:.15s;border:1px solid transparent;cursor:pointer;}
.cf-btn-primary{background:var(--cf-primary);color:#fff;}
.cf-btn-primary:hover{background:var(--cf-primary-d);color:#fff;}
.cf-btn-outline{background:#fff;color:var(--cf-primary);border-color:var(--cf-primary);}
.cf-btn-outline:hover{background:var(--cf-primary);color:#fff;}
.cf-btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.4);}
.cf-btn-ghost:hover{background:rgba(255,255,255,.24);color:#fff;}
.cf-btn-light{background:#fff;color:var(--cf-primary);}
.cf-btn-block{display:block;text-align:center;width:100%;}

/* ---- hero (homepage) ---- */
/* The navbar (.menu-section-area) overlays the first section, so heroes need ~150px top clearance —
   same geometry the stock .hero-area/.page-banner-header used (150-230px). */
.cf-hero{background:var(--cf-grad);color:#fff;padding:150px 0 90px;overflow:hidden;}
.cf-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;}
.cf-eyebrow{display:inline-block;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.3px;margin-bottom:18px;}
.cf-hero-title{font-size:46px;line-height:1.12;font-weight:800;margin:0 0 16px;}
.cf-accent{color:var(--cf-accent);}
.cf-hero-sub{font-size:18px;line-height:1.6;color:rgba(255,255,255,.9);max-width:560px;margin:0 0 26px;}
.cf-search{display:flex;background:#fff;border-radius:12px;padding:6px;max-width:560px;box-shadow:0 18px 40px rgba(20,10,60,.25);}
.cf-search input{flex:1;border:0;outline:0;padding:13px 16px;font-size:15px;color:var(--cf-ink);background:transparent;}
.cf-search button{background:var(--cf-primary);color:#fff;border:0;border-radius:9px;padding:0 26px;font-weight:700;cursor:pointer;}
.cf-search button:hover{background:var(--cf-primary-d);}
.cf-hero-cta{display:flex;gap:12px;margin:22px 0 30px;flex-wrap:wrap;}
.cf-stats{display:flex;gap:34px;flex-wrap:wrap;}
.cf-stats strong{display:block;font-size:26px;font-weight:800;}
.cf-stats span{font-size:13px;color:rgba(255,255,255,.8);}
.cf-hero-art{position:relative;height:320px;}
.cf-hero-card{position:absolute;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);backdrop-filter:blur(4px);border-radius:14px;padding:18px 22px;font-weight:700;font-size:15px;box-shadow:0 12px 30px rgba(20,10,60,.2);color:#fff;}
.cf-hero-card-1{top:20px;left:10%;transform:rotate(-6deg);}
.cf-hero-card-2{top:130px;right:6%;transform:rotate(5deg);}
.cf-hero-card-3{bottom:14px;left:22%;transform:rotate(-3deg);}

/* ---- course grid (cards come from partials/course.blade.php) ---- */
.cf-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.cf-grid > .card,.cf-grid > div > .card{height:100%;box-shadow:0 6px 22px rgba(20,10,60,.06);border:1px solid var(--cf-line)!important;transition:.15s;}
.cf-grid > .card:hover,.cf-grid > div > .card:hover{transform:translateY(-4px);box-shadow:0 14px 32px rgba(20,10,60,.12);}

/* ---- plans ---- */
.cf-plans-section{background:var(--cf-bg-soft);}
.cf-plans{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch;}
.cf-plan{position:relative;background:#fff;border:1px solid var(--cf-line);border-radius:16px;padding:30px 26px;display:flex;flex-direction:column;}
.cf-plan-featured{border-color:var(--cf-primary);box-shadow:0 16px 40px rgba(91,87,224,.16);}
.cf-plan-badge{position:absolute;top:-12px;left:26px;background:var(--cf-primary);color:#fff;font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;}
.cf-plan-name{font-size:20px;font-weight:800;color:var(--cf-ink);margin:0 0 10px;}
.cf-plan-price{font-size:34px;font-weight:800;color:var(--cf-ink);margin-bottom:12px;}
.cf-plan-price span{font-size:15px;font-weight:600;color:var(--cf-muted);}
.cf-plan-desc{color:var(--cf-muted);font-size:14px;line-height:1.55;margin:0 0 16px;}
.cf-plan-covers{color:var(--cf-ink);font-weight:600;font-size:14px;margin-bottom:16px;}
.cf-plan-list{list-style:none;padding:0;margin:0 0 22px;}
.cf-plan-list li{color:var(--cf-muted);font-size:14px;padding:5px 0 5px 24px;position:relative;}
.cf-plan-list li:before{content:"✓";color:#12b76a;font-weight:800;position:absolute;left:0;}
.cf-check{color:#12b76a;font-weight:800;margin-right:4px;}
.cf-plan .cf-btn{margin-top:auto;}
.cf-plans-foot{text-align:center;margin:26px 0 0;color:var(--cf-muted);}
.cf-plans-foot a{color:var(--cf-primary);font-weight:700;text-decoration:none;}

/* ---- categories ---- */
.cf-cats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.cf-cat{display:flex;flex-direction:column;gap:6px;background:#fff;border:1px solid var(--cf-line);border-radius:14px;padding:24px;text-decoration:none;transition:.15s;}
.cf-cat:hover{border-color:var(--cf-primary);transform:translateY(-3px);box-shadow:0 12px 28px rgba(20,10,60,.08);}
.cf-cat-name{font-weight:800;color:var(--cf-ink);font-size:17px;}
.cf-cat-count{color:var(--cf-muted);font-size:14px;}

/* ---- how it works ---- */
.cf-how-section{background:var(--cf-bg-soft);}
.cf-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.cf-step{background:#fff;border:1px solid var(--cf-line);border-radius:14px;padding:28px;}
.cf-step-n{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;background:var(--cf-primary);color:#fff;font-weight:800;font-size:18px;margin-bottom:14px;}
.cf-step h4{font-weight:800;color:var(--cf-ink);margin:0 0 8px;font-size:18px;}
.cf-step p{color:var(--cf-muted);margin:0;font-size:15px;line-height:1.55;}

/* ---- teach strip ---- */
.cf-teach{padding:56px 0;}
.cf-teach-inner{background:linear-gradient(135deg,var(--cf-ink),var(--cf-primary-d));border-radius:20px;padding:44px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;color:#fff;}
.cf-teach-inner h2{font-size:28px;font-weight:800;margin:0 0 8px;}
.cf-teach-inner p{margin:0;color:rgba(255,255,255,.85);max-width:560px;}

/* ---- reusable page hero (inner pages: cf-page-header partial) ---- */
.cf-page-hero{background:var(--cf-grad);color:#fff;padding:150px 0 60px;text-align:center;}
.cf-page-hero h1{font-size:34px;font-weight:800;margin:0 0 10px;color:#fff;}
.cf-page-hero p{color:rgba(255,255,255,.88);margin:0 0 12px;font-size:16px;}
.cf-crumb{display:inline-flex;gap:8px;align-items:center;font-size:14px;color:rgba(255,255,255,.85);}
.cf-crumb a{color:rgba(255,255,255,.85);text-decoration:none;}
.cf-crumb a:hover{color:#fff;text-decoration:underline;}
.cf-crumb .sep{opacity:.6;}

/* ---- content page wrapper (policies, plain text pages) ---- */
.cf-content{max-width:900px;margin:0 auto;padding:48px 20px;}
.cf-content-card{background:#fff;border:1px solid var(--cf-line);border-radius:16px;padding:36px 40px;box-shadow:0 6px 22px rgba(20,10,60,.05);}
.cf-content-card h1,.cf-content-card h2,.cf-content-card h3,.cf-content-card h4{color:var(--cf-ink);font-weight:800;}
.cf-content-card p,.cf-content-card li{color:#3a3f5c;line-height:1.7;}

/* ---- responsive ---- */
@media(max-width:992px){
    .cf-hero-grid{grid-template-columns:1fr;}
    .cf-hero-art{display:none;}
    .cf-hero-title{font-size:36px;}
    .cf-grid{grid-template-columns:repeat(2,1fr);}
    .cf-plans,.cf-cats,.cf-steps{grid-template-columns:1fr;}
}
@media(max-width:560px){
    .cf-grid{grid-template-columns:1fr;}
    .cf-search{flex-direction:column;}
    .cf-search button{padding:12px;margin-top:6px;}
    .cf-content-card{padding:24px;}
}

/* ============================================================================
   Global re-skin of the STOCK inner-page banner so every page matches the
   homepage without editing 59 blades. Structure: <header class="page-banner-header
   gradient-bg"> ... <h3 class="page-banner-heading"> ... <ol class="breadcrumb">.
   The homepage no longer uses this class (it has .cf-hero), so this is safe.
   ========================================================================== */
.page-banner-header.gradient-bg{
    background:var(--cf-grad)!important;
    padding:0!important;
    position:relative;
}
/* The overlay carries the stock 200-230px padding; tighten it while keeping navbar clearance. */
.page-banner-header .section-overlay{background:transparent!important;padding:150px 0 60px!important;min-height:0!important;}
/* The footer's own .section-overlay repaints the stock near-opaque navy overlay ON TOP of the
   themed --footer-gradient-bg, so the footer ignored every theme. Let the footer's gradient
   through; the themed --gradient-overlay-bg (cf-theme-tokens) covers any other overlay use. */
.footer-area .section-overlay,
.footer-gradient-bg .section-overlay{background:transparent!important;}
.page-banner-heading{font-weight:800!important;font-size:34px!important;color:#fff!important;}
.page-banner-header .breadcrumb{background:transparent;margin:0;justify-content:center;}
.page-banner-header .breadcrumb-item,
.page-banner-header .breadcrumb-item a{color:rgba(255,255,255,.85)!important;}
.page-banner-header .breadcrumb-item.active{color:#fff!important;}
.page-banner-header .breadcrumb-item+.breadcrumb-item::before{color:rgba(255,255,255,.6);}

/* ---- student panel density (frontend layout pages: My Learning, subscriptions, settings) ---- */
.my-courses-page table th{font-size:12.5px;padding:10px 12px;text-transform:uppercase;letter-spacing:.3px;}
.my-courses-page table td{font-size:13.5px;padding:10px 12px;vertical-align:middle;}
.my-courses-page .badge{font-size:11.5px;padding:4px 10px;border-radius:999px;}
.wishlist-page-area .theme-btn,.my-courses-page .theme-btn{font-size:13.5px;padding:9px 18px;border-radius:8px;}
.student-settings-area .form-control,.student-settings-area .form-select{min-height:38px;padding:7px 12px;font-size:13.5px;border-radius:8px;}
.student-settings-area label{font-size:13px;font-weight:600;}


/* ============================================================================
   Themed navbar (HANDOFF §24). The stock nav is transparent (designed to sit on
   the hero) and its sticky state reads --navbar-bg-color — over white sections
   both go illegible and ignore the palette. Give the nav a permanent themed
   gradient: seamless on the hero (same gradient) and always legible when sticky.
   ========================================================================== */
.menu-section-area{background:var(--cf-grad)!important;}
#mainNav,#mainNav.sticky{background:var(--cf-grad)!important;background-color:transparent;}
#mainNav.sticky{box-shadow:0 6px 18px rgba(0,0,0,.18)!important;}
.menu-section-area .navbar-nav > .nav-item > .nav-link{color:#fff!important;font-weight:600;}
.menu-section-area .navbar-nav > .nav-item > .nav-link:hover{color:var(--cf-accent)!important;}
.menu-section-area .dropdown-menu .dropdown-item,
.menu-section-area .dropdown-menu a{color:var(--cf-ink);}          /* dropdown panels stay white/dark */
.menu-section-area .navbar-toggler{border-color:rgba(255,255,255,.5);}
.menu-section-area .input-group.landing{background:#fff;border-radius:10px;}

/* Legacy --theme-color now emitted per-theme by cf-theme-tokens.blade.php (HANDOFF §25). */

/* Impersonation — navbar button (the bottom banner can hide behind dev toolbars). */
.cf-impersonate-nav{background:var(--cf-accent);color:var(--cf-ink)!important;border-radius:9px;padding:8px 16px!important;
    font-weight:800!important;margin-left:8px;white-space:nowrap;}
.cf-impersonate-nav:hover{background:#fff;color:var(--cf-primary-d)!important;}

/* ============================================================================
   Modern preloader (HANDOFF §25d). Stock was an opaque white sheet until the
   full window load — on slow pages it read as a broken site. Translucent blur
   overlay instead: content is visible beneath, a small token-colored ring spins
   around the logo, and layouts carry a fail-safe timeout so it can never hang.
   ========================================================================== */
#preloader{
    background:rgba(255,255,255,.55)!important;
    -webkit-backdrop-filter:blur(10px) saturate(1.2);backdrop-filter:blur(10px) saturate(1.2);
    display:flex;align-items:center;justify-content:center;
}
#preloader_status{position:relative!important;top:auto!important;left:auto!important;margin:0!important;
    width:54px!important;height:54px!important;min-width:0!important;min-height:0!important;padding:0!important;
    transform:none!important;display:flex!important;align-items:center!important;justify-content:center!important;}
#preloader_status img{width:54px!important;height:54px!important;max-width:54px!important;object-fit:contain;border-radius:14px;display:block;}
#preloader_status::before{display:none!important;content:none!important;}
/* Fixed-size ring: stock sheets size #preloader_status to 100% on some layouts, which turned an
   inset-based ring into a viewport-wide ellipse. Hard dimensions are immune to the parent's size. */
#preloader_status::after{content:"";position:absolute;top:50%;left:50%;width:86px;height:86px;
    margin:-43px 0 0 -43px;border-radius:50%;box-sizing:border-box;
    border:3px solid rgba(0,0,0,.06);border-top-color:var(--cf-primary,#5b57e0);
    animation:cf-spin .8s linear infinite;}
@keyframes cf-spin{to{transform:rotate(360deg)}}

/* ============================================================================
   COMPACT DATA TABLES — student panel (HANDOFF §29)
   Same density pass as the admin/instructor panels: student tables (wishlist,
   cart, orders, quiz results, tickets) sit in .table-responsive > .table and
   burned vertical space with big thumbs and roomy padding.
   ========================================================================== */
.table-responsive > .table th{font-size:12px;padding:9px 10px;white-space:nowrap;vertical-align:middle;}
.table-responsive > .table td{font-size:13.5px;padding:8px 10px;vertical-align:middle;line-height:1.4;}
.table-responsive > .table tbody td img{width:auto!important;max-width:64px!important;max-height:36px!important;border-radius:6px;object-fit:cover;}
.table-responsive > .table .btn,.table-responsive > .table .theme-btn{padding:5px 12px;font-size:12.5px;border-radius:6px;}
.table-responsive > .table tbody tr:hover td{background:#f8f8fd;}

/* Exam engine — solution walkthrough on the result screen (HANDOFF §32) */
.cf-exam-explanation{margin-top:10px;padding:12px 14px;border-left:3px solid var(--cf-primary,#5b57e0);
    background:var(--cf-bg-soft,#f6f6fc);border-radius:8px;font-size:14px;line-height:1.55;color:var(--cf-ink,#131635);}
.cf-exam-explanation strong{color:var(--cf-primary,#5b57e0);}