@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Noto+Sans+Sinhala:wght@400;500;600;700&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.2/css/all.min.css');

:root{
  --primary:#2563eb;--primary-dark:#1d4ed8;--primary-soft:#dbeafe;
  --success:#16a34a;--success-soft:#dcfce7;--warning:#f59e0b;--warning-soft:#fef3c7;
  --purple:#7c3aed;--purple-soft:#ede9fe;--danger:#ef4444;--danger-soft:#fee2e2;
  --cyan:#06b6d4;--cyan-soft:#cffafe;--white:#fff;--black:#0f172a;
  --background:#f1f5f9;--surface:#fff;--surface-glass:rgba(255,255,255,.86);
  --border:#dbe4ef;--text:#0f172a;--text-light:#64748b;
  --font-primary:'Inter','Noto Sans Sinhala',system-ui,-apple-system,sans-serif;
  --radius-sm:10px;--radius-md:16px;--radius-lg:24px;
  --shadow-sm:0 2px 10px rgba(15,23,42,.06);--shadow-md:0 12px 32px rgba(15,23,42,.10);--shadow-lg:0 24px 60px rgba(15,23,42,.14);
  --transition:180ms ease;
}

html{scroll-behavior:smooth}*{box-sizing:border-box}body{min-width:320px;margin:0;color:var(--text);background:radial-gradient(circle at 5% 0,#dbeafe 0,transparent 26rem),var(--background);font-family:var(--font-primary);line-height:1.55;-webkit-font-smoothing:antialiased}body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background-image:linear-gradient(rgba(37,99,235,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(37,99,235,.025) 1px,transparent 1px);background-size:32px 32px}img{max-width:100%;height:auto}button,input,select,textarea{font:inherit}button,a,input,select,textarea{transition:border-color var(--transition),box-shadow var(--transition),background-color var(--transition),color var(--transition),transform var(--transition)}:focus-visible{outline:3px solid rgba(6,182,212,.45);outline-offset:3px}::selection{color:#fff;background:var(--primary)}

.container,.page-wrapper,.catalog{width:min(1240px,calc(100% - 32px));margin-inline:auto}.page-wrapper,.container{padding-top:clamp(20px,3vw,36px);padding-bottom:clamp(28px,5vw,60px)}
.page-header,.admin-header,main.container>header,.container>header:not(.modal-header){position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:26px;padding:clamp(22px,4vw,34px);border:1px solid rgba(255,255,255,.4);border-radius:var(--radius-lg);color:#fff;background:linear-gradient(135deg,#0f172a 0,#1d4ed8 68%,#06b6d4 135%);box-shadow:var(--shadow-md)}.page-header::after,.admin-header::after,main.container>header::after{content:"";position:absolute;right:-45px;top:-65px;width:190px;height:190px;border:28px solid rgba(255,255,255,.08);border-radius:50%}.page-header h1,.admin-header h1,main.container>header h1{margin:0;color:#fff;font-size:clamp(1.55rem,3vw,2.2rem);letter-spacing:-.035em}.page-header p,.admin-header p,main.container>header p{margin:.35rem 0 0;color:#dbeafe}.header-right{display:flex;flex-wrap:wrap;gap:10px;position:relative;z-index:1}

.card,.summary-card,.dashboard-panel,.access-card,.feature-card,.lesson-card,.testimonial-card,.stat-box,.details-card,.table-section,.filter-section,.search-box,.auth-card,.form-card,.settings-card,.panel,.term,.student-card{border:1px solid rgba(203,213,225,.75)!important;border-radius:var(--radius-md)!important;background:var(--surface-glass)!important;box-shadow:var(--shadow-sm)!important;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}.card,.summary-card,.access-card,.feature-card,.lesson-card,.dashboard-panel,.details-card{transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition)}.card:hover,.summary-card:hover,.access-card:hover,.feature-card:hover,.lesson-card:hover,.dashboard-panel:hover{transform:translateY(-3px);border-color:#bfdbfe!important;box-shadow:var(--shadow-md)!important}.card h2,.summary-card strong,.stat-number{font-variant-numeric:tabular-nums;letter-spacing:-.035em}

.btn,.dashboard-button,button[type="submit"],.actions button,.actions a,.page-btn,.primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:10px 16px;border:1px solid transparent;border-radius:var(--radius-sm);font-weight:700;text-decoration:none;cursor:pointer}.btn,.btn-primary,.dashboard-button,button[type="submit"],.actions button,.actions a,.primary{color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-dark));box-shadow:0 6px 15px rgba(37,99,235,.2)}.btn:hover,.dashboard-button:hover,button[type="submit"]:hover,.actions button:hover,.actions a:hover,.primary:hover{transform:translateY(-2px);filter:saturate(1.08);box-shadow:0 10px 24px rgba(37,99,235,.25)}.btn-secondary,.btn-outline,.page-btn{color:var(--primary)!important;background:#fff!important;border-color:#bfdbfe!important;box-shadow:none!important}.btn-success,.success-btn{color:#fff!important;background:var(--success)!important}.btn-warning,.warning-btn{color:#fff!important;background:var(--warning)!important}.btn-danger,.danger-btn,.delete-btn{color:#fff!important;background:var(--danger)!important}.btn:disabled,button:disabled{cursor:not-allowed;opacity:.55;transform:none!important;box-shadow:none!important}

label{color:var(--text);font-size:.875rem;font-weight:700}input:not([type="checkbox"]):not([type="radio"]),select,textarea{width:100%;min-height:44px;padding:10px 13px;color:var(--text);background:#fff;border:1px solid #cbd5e1;border-radius:var(--radius-sm);outline:0}textarea{min-height:96px;resize:vertical}input:hover,select:hover,textarea:hover{border-color:#94a3b8}input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(37,99,235,.12)}input:invalid:not(:placeholder-shown){border-color:var(--danger)}input[readonly],input:disabled,select:disabled,textarea:disabled{color:#64748b;background:#f8fafc}.form-group{display:grid;gap:7px}.switch-row input[type="checkbox"]{accent-color:var(--primary)}

.table-responsive,.table-container{overflow:auto;border:1px solid var(--border);border-radius:var(--radius-md);background:#fff;box-shadow:var(--shadow-sm);scrollbar-width:thin}table{width:100%;border-collapse:separate!important;border-spacing:0!important;background:#fff}thead{position:sticky;top:0;z-index:3}th{padding:13px 14px!important;color:#334155!important;background:#f8fafc!important;border-bottom:1px solid var(--border)!important;font-size:.75rem!important;font-weight:800!important;letter-spacing:.045em;text-align:left;text-transform:uppercase;white-space:nowrap}th[data-sortable="true"]{cursor:pointer;padding-right:28px!important}th[data-sortable="true"]::after{content:"\f0dc";position:absolute;margin-left:8px;color:#94a3b8;font-family:"Font Awesome 6 Free";font-weight:900}th[aria-sort="ascending"]::after{content:"\f0de";color:var(--primary)}th[aria-sort="descending"]::after{content:"\f0dd";color:var(--primary)}td{padding:13px 14px!important;border-bottom:1px solid #edf2f7!important;color:#334155;vertical-align:middle}tbody tr:nth-child(even){background:#f8fafc80}tbody tr:hover{background:#eff6ff}tbody tr:last-child td{border-bottom:0!important}.pagination-section{display:flex;align-items:center;justify-content:center;gap:12px;margin:22px 0}.status-badge,.payment-status,.tag,.badge{display:inline-flex;align-items:center;gap:5px;padding:5px 9px;border-radius:999px;font-size:.75rem;font-weight:800}.active,.paid,.published,.success{color:#166534!important;background:var(--success-soft)!important}.inactive,.unpaid,.hidden,.danger{color:#991b1b!important;background:var(--danger-soft)!important}.partial,.pending,.draft,.warning{color:#92400e!important;background:var(--warning-soft)!important}

.modal{position:fixed!important;inset:0!important;z-index:1000!important;padding:20px;background:rgba(15,23,42,.68)!important;backdrop-filter:blur(6px)}.modal-content,.confirm-box,.modal-card{width:min(680px,100%);max-height:calc(100vh - 40px);overflow:auto;border:1px solid rgba(255,255,255,.6)!important;border-radius:var(--radius-lg)!important;background:#fff!important;box-shadow:var(--shadow-lg)!important;animation:modal-enter .2s ease-out}.modal-header{position:sticky;top:0;z-index:3;display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:14px;background:#fff;border-bottom:1px solid var(--border)}.close-btn,.close{display:grid!important;place-items:center;width:40px;height:40px;padding:0!important;border-radius:50%!important;color:#475569!important;background:#f1f5f9!important;box-shadow:none!important}.loader{border-color:#dbeafe!important;border-top-color:var(--primary)!important}#loadingOverlay{background:rgba(241,245,249,.86)!important;backdrop-filter:blur(5px)}#toast{max-width:min(380px,calc(100vw - 32px));border-radius:var(--radius-sm)!important;box-shadow:var(--shadow-lg)!important;font-weight:700}

.search-box{display:flex;align-items:center;gap:10px;padding:8px 12px!important}.search-box input{border:0!important;box-shadow:none!important}.filter-section{display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding:16px!important;margin-bottom:20px}.filter-section .search-box{flex:1 1 280px}.filter-section select{width:auto;min-width:150px}.actions{display:grid!important;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px!important}.actions button,.actions a{min-height:52px}.empty-state,.empty-row{padding:28px!important;color:var(--text-light);text-align:center}.ui-table-tools{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:14px 0;padding:12px;border:1px solid var(--border);border-radius:14px;background:#fff;box-shadow:var(--shadow-sm)}.ui-table-tools label,.ui-table-tools>div{display:flex;align-items:center;gap:9px}.ui-table-tools label{flex:1}.ui-table-tools input{max-width:340px}.ui-table-tools select{width:auto}.ui-table-tools button{display:grid;place-items:center;width:38px;height:38px;min-height:38px;padding:0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

@keyframes modal-enter{from{opacity:0;transform:translateY(12px) scale(.985)}to{opacity:1;transform:none}}@keyframes card-enter{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}.app-ready .card,.app-ready .summary-card,.app-ready .dashboard-panel{animation:card-enter .35s both}.app-ready .card:nth-child(2),.app-ready .summary-card:nth-child(2){animation-delay:.04s}.app-ready .card:nth-child(3),.app-ready .summary-card:nth-child(3){animation-delay:.08s}.app-ready .card:nth-child(4),.app-ready .summary-card:nth-child(4){animation-delay:.12s}

@media(max-width:768px){.container,.page-wrapper,.catalog{width:min(100% - 20px,1240px)}.page-header,.admin-header,main.container>header,.container>header:not(.modal-header){align-items:flex-start;flex-direction:column;padding:22px}.header-right,.header-right .btn{width:100%}.filter-section{align-items:stretch;flex-direction:column}.filter-section .search-box,.filter-section select{width:100%;flex-basis:auto}.ui-table-tools{align-items:stretch;flex-direction:column}.ui-table-tools label,.ui-table-tools input,.ui-table-tools>div{width:100%;max-width:none}.ui-table-tools>div{justify-content:space-between}.modal{padding:10px}.modal-content,.confirm-box,.modal-card{max-height:calc(100vh - 20px);border-radius:16px!important}.optional-column{display:none}.actions{grid-template-columns:1fr 1fr!important}.table-responsive,.table-container{max-width:100%;-webkit-overflow-scrolling:touch}}
@media(max-width:480px){.actions{grid-template-columns:1fr!important}.btn,.dashboard-button,button[type="submit"]{width:100%}.card,.summary-card,.dashboard-panel,.access-card,.feature-card,.lesson-card{border-radius:14px!important}th,td{padding:11px!important}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}

/* Premium homepage */
.navbar{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.9)!important;border-bottom:1px solid rgba(203,213,225,.7);backdrop-filter:blur(16px);box-shadow:0 4px 20px rgba(15,23,42,.05)}.navbar .container{min-height:76px}.cms-logo{max-height:58px!important;width:auto}.nav-menu a{position:relative;font-weight:600;color:#334155}.nav-menu a::after{content:"";position:absolute;left:0;right:100%;bottom:-7px;height:2px;background:var(--primary);transition:right var(--transition)}.nav-menu a:hover::after{right:0}.hero{overflow:hidden;padding:clamp(54px,8vw,100px) 0!important;background:linear-gradient(145deg,#eff6ff 0,#fff 48%,#ecfeff)}.hero-content{min-height:520px}.hero-text h1{max-width:700px;font-size:clamp(2.5rem,6vw,4.7rem)!important;line-height:1.04!important;letter-spacing:-.055em;color:#0f172a!important}.hero-text h1::first-line{color:var(--primary)}.hero-text p{max-width:620px;font-size:clamp(1rem,2vw,1.2rem);color:#475569!important}.hero-image{display:grid;place-items:center;position:relative}.hero-image::before{content:"";position:absolute;width:85%;aspect-ratio:1;border-radius:50%;background:linear-gradient(135deg,#bfdbfe,#cffafe);filter:blur(2px)}.hero-image img{position:relative;max-height:520px;width:auto;object-fit:contain;filter:drop-shadow(0 24px 30px rgba(37,99,235,.2))}.section-title .section-kicker,.section-kicker{display:block;margin-bottom:8px;color:var(--primary);font-size:.75rem;font-weight:800;letter-spacing:.14em}.access-section,.latest-lessons,.paid-lessons-showcase,.features,.about,.testimonials{padding:clamp(60px,8vw,96px) 0!important}.access-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))!important}.access-card{position:relative;overflow:hidden;padding:28px!important}.access-card::before{content:"\f19d";display:grid;place-items:center;width:48px;height:48px;margin-bottom:18px;border-radius:14px;color:#fff;background:linear-gradient(135deg,var(--primary),var(--cyan));font-family:"Font Awesome 6 Free";font-weight:900}.access-card:nth-child(2)::before{content:"\f109";background:linear-gradient(135deg,var(--success),var(--cyan))}.access-card:nth-child(3)::before{content:"\f51c";background:linear-gradient(135deg,var(--warning),#f97316)}.access-card:nth-child(4)::before{content:"\f51c";background:linear-gradient(135deg,var(--purple),var(--primary))}.access-card:nth-child(5)::before{content:"\f013";background:linear-gradient(135deg,#334155,#0f172a)}.grade-access-grid .btn:nth-child(odd){color:var(--primary)!important;background:#eff6ff!important}.feature-grid,.lesson-grid,.testimonial-grid{gap:22px!important}.feature-card,.lesson-card,.testimonial-card{overflow:hidden;padding:24px!important}.lesson-card{display:flex;flex-direction:column}.lesson-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px}.lesson-card .btn{margin-top:auto}.paid-lessons-showcase{background:linear-gradient(145deg,#0f172a,#172554);color:#fff}.paid-lessons-showcase .section-title h2,.paid-lessons-showcase .section-title p{color:#fff}.paid-lessons-showcase .section-kicker{color:#67e8f9}.paid-grade-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.paid-grade-grid a{display:grid;gap:6px;padding:22px;border:1px solid rgba(255,255,255,.14);border-radius:16px;background:rgba(255,255,255,.08);backdrop-filter:blur(12px)}.paid-grade-grid a:hover{transform:translateY(-3px);background:rgba(255,255,255,.14)}.paid-grade-grid i{font-size:1.5rem;color:#67e8f9}.paid-grade-grid strong{font-size:1.1rem}.paid-grade-grid span{color:#cbd5e1;font-size:.85rem}.stats{background:linear-gradient(135deg,var(--primary),var(--purple))!important}.stat-box{color:#fff!important;background:rgba(255,255,255,.12)!important;border-color:rgba(255,255,255,.18)!important}.footer{background:#0f172a!important;color:#cbd5e1!important}.footer h3,.footer h4{color:#fff!important}

/* Dashboard visual hierarchy */
#summaryCards,.summary-grid{display:grid!important;grid-template-columns:repeat(auto-fit,minmax(210px,1fr))!important;gap:16px!important}#summaryCards .card{position:relative;overflow:hidden;padding:22px!important}#summaryCards .card::after{content:"";position:absolute;right:-25px;bottom:-35px;width:100px;height:100px;border-radius:50%;background:var(--primary-soft);opacity:.7}#summaryCards .card:nth-child(2)::after{background:var(--success-soft)}#summaryCards .card:nth-child(3)::after{background:var(--warning-soft)}#summaryCards .card:nth-child(4)::after{background:var(--purple-soft)}#summaryCards .card:nth-child(5)::after{background:var(--danger-soft)}#summaryCards .card:nth-child(6)::after{background:var(--cyan-soft)}#summaryCards .card h3{display:flex;align-items:center;gap:8px;color:#64748b;font-size:.85rem}#summaryCards .card h3 i{color:var(--primary)}#summaryCards .card h2{position:relative;z-index:1;margin:.6rem 0 0;font-size:clamp(1.65rem,4vw,2.2rem)}

@media(max-width:900px){.nav-menu{display:none!important}.hero-content{min-height:auto;gap:30px!important}.paid-grade-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.hero-content{align-items:stretch!important;flex-direction:column!important}.hero-image{min-height:300px!important}.paid-grade-grid{grid-template-columns:1fr}.navbar .btn{width:auto}.badge-grid{grid-template-columns:1fr}}

/* Shared responsive safety rules for existing LMS pages. */
html,body{max-width:100%}
body{min-width:0;overflow-x:clip}
@supports not (overflow:clip){body{overflow-x:hidden}}

form,fieldset,input,select,textarea,
.container,.page-wrapper,.catalog,
.card,.summary-card,.dashboard-panel,.access-card,.feature-card,.lesson-card,.testimonial-card,.details-card,.form-card,.settings-card,.panel,.term,.student-card{min-width:0;max-width:100%}

[class*="grid"]>* ,
.page-header>*,.admin-header>*,.header-right>*,.modal-header>*,.modal-footer>*{min-width:0}

p,li,dd,td,
.student-context,.inline-message,.dashboard-item,.activity-item,
.card,.summary-card,.dashboard-panel,.details-card{overflow-wrap:anywhere;word-break:break-word}
a{overflow-wrap:anywhere}
button,.btn,.dashboard-button{max-width:100%;white-space:normal;text-align:center}

.teacher-page-actions{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:10px;margin:0 0 24px}.teacher-page-actions .btn{min-height:44px}
@media(max-width:600px){.teacher-page-actions{align-items:stretch;flex-direction:column}.teacher-page-actions .btn{width:100%}}
@media print{.teacher-page-actions{display:none!important}}

.header-right,.modal-footer,.form-actions,.button-group,.action-buttons,.card-actions,.password-modal-actions,.online-class-actions{max-width:100%;flex-wrap:wrap}

.table-responsive,.table-container,[class*="table-wrapper"]{width:100%;max-width:100%;overflow-x:auto;overscroll-behavior-inline:contain;-webkit-overflow-scrolling:touch}
.table-responsive>table,.table-container>table,[class*="table-wrapper"]>table{margin-inline:0}

.modal{max-width:100vw;overflow-x:hidden;overflow-y:auto}
.modal-content,.confirm-box,.modal-card{max-height:calc(100vh - 40px);max-height:calc(100dvh - 40px);overflow-y:auto;overscroll-behavior:contain}
.modal-header{top:0;z-index:5;background:#fff}
.modal-header h1,.modal-header h2,.modal-header h3{min-width:0;overflow-wrap:anywhere}
.modal-header .close-btn,.modal-header .close{flex:0 0 40px}

@media(max-width:768px){
  .page-header,.admin-header,main.container>header,.container>header:not(.modal-header){max-width:100%}
  .modal-content,.confirm-box,.modal-card{max-height:calc(100vh - 20px);max-height:calc(100dvh - 20px)}
  .modal-footer,.form-actions,.button-group,.password-modal-actions{align-items:stretch}
}

@media(max-width:480px){
  .page-header,.admin-header,main.container>header,.container>header:not(.modal-header){padding:18px}
  .modal-header{gap:10px;padding:14px}
  .modal-footer,.form-actions,.button-group,.password-modal-actions{flex-direction:column}
  .modal-footer>.btn,.form-actions>.btn,.button-group>.btn,.password-modal-actions>button{width:100%}
}