/* =========================================================
   LAKSHYA LMS AUTHENTICATION
   Premium responsive login/authentication stylesheet
   Replace: assets/css/auth.css
========================================================= */

:root{
    color-scheme:dark;

    --auth-bg:#060b14;
    --auth-bg-2:#0a1220;
    --auth-bg-3:#101a2c;

    --surface:rgba(17,27,45,.78);
    --surface-2:rgba(22,34,55,.88);
    --surface-soft:rgba(255,255,255,.05);
    --surface-hover:rgba(255,255,255,.08);

    --input-bg:rgba(5,11,20,.68);
    --input-bg-hover:rgba(11,20,34,.88);

    --border:rgba(203,213,225,.14);
    --border-soft:rgba(203,213,225,.085);
    --border-strong:rgba(203,213,225,.22);

    --text:#f8fafc;
    --heading:#ffffff;
    --soft:#d5deea;
    --muted:#94a3b8;
    --faint:#64748b;
    --placeholder:#718096;

    --primary:#8b5cf6;
    --primary-dark:#6d3ee8;
    --primary-2:#22d3ee;

    --danger:#ef4444;
    --danger-soft:rgba(239,68,68,.13);
    --success:#22c55e;
    --success-soft:rgba(34,197,94,.13);
    --warning:#f59e0b;
    --warning-soft:rgba(245,158,11,.13);

    --radius-sm:14px;
    --radius-md:18px;
    --radius-lg:24px;
    --radius-xl:30px;

    --shadow-sm:0 12px 34px rgba(0,0,0,.20);
    --shadow:0 28px 90px rgba(0,0,0,.38);
    --shadow-lg:0 38px 120px rgba(0,0,0,.48);

    --focus-ring:0 0 0 4px rgba(34,211,238,.12);
    --transition:.22s ease;
}

/* =========================================================
   RESET + BASE
========================================================= */

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

html{
    min-height:100%;
    scroll-behavior:smooth;
}

body.auth-body{
    min-height:100vh;
    overflow-x:hidden;
    color:var(--text);
    background:
        radial-gradient(circle at 9% 8%, rgba(139,92,246,.22), transparent 31%),
        radial-gradient(circle at 92% 10%, rgba(34,211,238,.13), transparent 29%),
        radial-gradient(circle at 72% 92%, rgba(139,92,246,.09), transparent 30%),
        linear-gradient(135deg, var(--auth-bg) 0%, var(--auth-bg-2) 52%, #0d1626 100%);
    background-attachment:fixed;
    font-family:Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size:14px;
    line-height:1.5;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
}

body.auth-body::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:-1;
    pointer-events:none;
    opacity:.32;
    background-image:
        linear-gradient(rgba(255,255,255,.012) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.012) 1px, transparent 1px);
    background-size:42px 42px;
    mask-image:linear-gradient(to bottom, rgba(0,0,0,.75), transparent 92%);
}

body.auth-body,
body.auth-body *{
    scrollbar-width:thin;
    scrollbar-color:rgba(139,92,246,.45) transparent;
}

body.auth-body ::-webkit-scrollbar{
    width:9px;
    height:9px;
}

body.auth-body ::-webkit-scrollbar-track{
    background:transparent;
}

body.auth-body ::-webkit-scrollbar-thumb{
    border:2px solid transparent;
    border-radius:999px;
    background:rgba(139,92,246,.42);
    background-clip:padding-box;
}

body.auth-body ::-webkit-scrollbar-thumb:hover{
    background:rgba(139,92,246,.66);
    background-clip:padding-box;
}

a{
    color:inherit;
    text-decoration:none;
}

button,
input{
    font:inherit;
}

button{
    cursor:pointer;
}

img,
svg{
    max-width:100%;
}

img{
    display:block;
}

::selection{
    color:#fff;
    background:rgba(139,92,246,.72);
}

:focus-visible{
    outline:2px solid rgba(34,211,238,.82);
    outline-offset:3px;
}

/* =========================================================
   AUTH LAYOUT
========================================================= */

.auth-shell{
    min-height:100vh;
    display:grid;
    grid-template-columns:minmax(0,1.08fr) minmax(430px,.92fr);
}

.auth-left{
    position:relative;
    min-width:0;
    overflow:hidden;
    display:flex;
    flex-direction:column;
    justify-content:space-between;
    padding:42px;
    border-right:1px solid var(--border);
    background:
        linear-gradient(145deg, rgba(139,92,246,.04), transparent 48%),
        rgba(6,11,20,.18);
}

.auth-left::before{
    content:"";
    position:absolute;
    top:70px;
    right:-190px;
    width:540px;
    height:540px;
    pointer-events:none;
    border-radius:50%;
    background:radial-gradient(circle, rgba(34,211,238,.24), transparent 65%);
}

.auth-left::after{
    content:"";
    position:absolute;
    left:-120px;
    bottom:-130px;
    width:360px;
    height:360px;
    pointer-events:none;
    border-radius:50%;
    background:radial-gradient(circle, rgba(139,92,246,.26), transparent 67%);
}

.auth-right{
    position:relative;
    display:grid;
    place-items:center;
    min-width:0;
    padding:38px;
    background:
        linear-gradient(180deg, rgba(255,255,255,.012), transparent 24%),
        rgba(5,10,18,.16);
}

.auth-right::before{
    content:"";
    position:absolute;
    inset:0;
    pointer-events:none;
    background:
        radial-gradient(circle at 80% 20%, rgba(139,92,246,.08), transparent 28%);
}

/* =========================================================
   BRAND
========================================================= */

.auth-brand{
    position:relative;
    z-index:2;
    display:flex;
    align-items:center;
    gap:13px;
}

.auth-logo{
    width:54px;
    height:54px;
    flex:0 0 54px;
    display:grid;
    place-items:center;
    overflow:hidden;
    color:#fff;
    border:1px solid rgba(255,255,255,.12);
    border-radius:18px;
    background:linear-gradient(135deg, var(--primary), var(--primary-2));
    box-shadow:0 18px 42px rgba(139,92,246,.30);
    font-size:27px;
    font-weight:950;
}

.auth-logo img{
    width:100%;
    height:100%;
    object-fit:cover;
}

.auth-brand strong{
    display:block;
    color:var(--heading);
    font-size:16px;
    font-weight:950;
    letter-spacing:.1px;
}

.auth-brand small{
    display:block;
    margin-top:3px;
    color:var(--muted);
    font-size:11px;
}

/* =========================================================
   LEFT-SIDE CONTENT
========================================================= */

.auth-copy{
    position:relative;
    z-index:2;
    max-width:680px;
    padding:72px 0 56px;
}

.eyebrow{
    display:inline-flex;
    align-items:center;
    gap:7px;
    padding:7px 11px;
    color:#ddd6fe;
    border:1px solid rgba(139,92,246,.34);
    border-radius:999px;
    background:rgba(139,92,246,.12);
    font-size:10px;
    font-weight:900;
    letter-spacing:.10em;
    text-transform:uppercase;
}

.auth-copy h1{
    max-width:680px;
    margin-top:18px;
    color:var(--heading);
    font-size:clamp(42px,5vw,62px);
    font-weight:950;
    line-height:1.015;
    letter-spacing:-.065em;
}

.auth-copy p{
    max-width:580px;
    margin-top:18px;
    color:var(--soft);
    font-size:15px;
    line-height:1.8;
}

.auth-highlights{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:14px;
    max-width:590px;
    margin-top:28px;
}

.auth-highlights div{
    position:relative;
    min-width:0;
    padding:18px;
    overflow:hidden;
    border:1px solid var(--border);
    border-radius:21px;
    background:
        linear-gradient(145deg, rgba(255,255,255,.055), transparent 70%),
        var(--surface);
    box-shadow:var(--shadow-sm);
    backdrop-filter:blur(20px) saturate(125%);
    -webkit-backdrop-filter:blur(20px) saturate(125%);
    transition:transform var(--transition), border-color var(--transition), background var(--transition);
}

.auth-highlights div::after{
    content:"";
    position:absolute;
    right:-28px;
    bottom:-34px;
    width:80px;
    height:80px;
    pointer-events:none;
    border-radius:50%;
    background:radial-gradient(circle, rgba(139,92,246,.16), transparent 68%);
}

.auth-highlights div:hover{
    transform:translateY(-3px);
    border-color:rgba(139,92,246,.28);
    background:
        linear-gradient(145deg, rgba(139,92,246,.11), transparent 70%),
        var(--surface-2);
}

.auth-highlights strong{
    display:block;
    color:var(--heading);
    font-size:17px;
    font-weight:950;
}

.auth-highlights span{
    display:block;
    margin-top:4px;
    color:var(--muted);
    font-size:11px;
    line-height:1.45;
}

.auth-trust-strip{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    max-width:680px;
    margin-top:24px;
}

.auth-trust-strip div{
    min-height:40px;
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:0 13px;
    color:var(--soft);
    border:1px solid var(--border-soft);
    border-radius:999px;
    background:var(--surface-soft);
    box-shadow:var(--shadow-sm);
    font-size:11px;
    font-weight:800;
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
}

.auth-trust-strip span{
    font-size:15px;
}

/* =========================================================
   AUTH CARD
========================================================= */

.auth-card{
    position:relative;
    z-index:2;
    width:min(470px,100%);
    padding:31px;
    overflow:hidden;
    color:var(--text);
    border:1px solid var(--border-strong);
    border-radius:var(--radius-xl);
    background:
        radial-gradient(circle at top right, rgba(139,92,246,.15), transparent 36%),
        linear-gradient(145deg, rgba(255,255,255,.055), transparent 70%),
        var(--surface);
    box-shadow:var(--shadow-lg);
    backdrop-filter:blur(28px) saturate(135%);
    -webkit-backdrop-filter:blur(28px) saturate(135%);
}

.premium-login-card{
    position:relative;
    overflow:hidden;
}

.login-card-glow{
    position:absolute;
    top:-105px;
    right:-95px;
    width:250px;
    height:250px;
    pointer-events:none;
    border-radius:50%;
    background:radial-gradient(circle, rgba(34,211,238,.24), transparent 69%);
}

.auth-card-header{
    position:relative;
    z-index:2;
}

.auth-card-header .eyebrow{
    margin-bottom:2px;
}

.auth-card-header h2{
    margin-top:14px;
    color:var(--heading);
    font-size:30px;
    font-weight:950;
    line-height:1.12;
    letter-spacing:-.045em;
}

.auth-card-header p{
    margin-top:8px;
    color:var(--muted);
    font-size:13px;
    line-height:1.6;
}

/* =========================================================
   ALERTS
========================================================= */

.auth-alert{
    position:relative;
    z-index:2;
    margin-top:18px;
    padding:13px 14px;
    border:1px solid var(--border);
    border-radius:15px;
    box-shadow:var(--shadow-sm);
    font-size:12px;
    font-weight:750;
    line-height:1.55;
}

.auth-alert p + p{
    margin-top:5px;
}

.auth-alert-error{
    color:#fecaca;
    border-color:rgba(239,68,68,.28);
    background:var(--danger-soft);
}

.auth-alert-success{
    color:#bbf7d0;
    border-color:rgba(34,197,94,.28);
    background:var(--success-soft);
}

.auth-alert-warning{
    color:#fde68a;
    border-color:rgba(245,158,11,.28);
    background:var(--warning-soft);
}

/* =========================================================
   FORM
========================================================= */

.auth-card form,
.login-form{
    position:relative;
    z-index:2;
    margin-top:22px;
}

.form-group{
    display:flex;
    min-width:0;
    flex-direction:column;
    gap:8px;
    margin-bottom:16px;
}

.form-group label{
    color:var(--soft);
    font-size:12px;
    font-weight:850;
}

.form-group input{
    width:100%;
    height:50px;
    padding:0 15px;
    color:var(--text);
    caret-color:var(--primary-2);
    border:1px solid var(--border);
    border-radius:15px;
    outline:none;
    background:var(--input-bg);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.025);
    transition:
        border-color var(--transition),
        box-shadow var(--transition),
        background var(--transition),
        color var(--transition);
}

.form-group input:hover{
    border-color:var(--border-strong);
    background:var(--input-bg-hover);
}

.form-group input:focus{
    color:var(--heading);
    border-color:rgba(34,211,238,.56);
    background:var(--input-bg-hover);
    box-shadow:var(--focus-ring);
}

.form-group input::placeholder{
    color:var(--placeholder);
    opacity:1;
}

.form-group input:disabled{
    cursor:not-allowed;
    opacity:.55;
}

.form-group small,
.form-help,
.help-text{
    color:var(--muted);
    font-size:11px;
    line-height:1.45;
}

.form-error,
.error-text{
    display:block;
    color:#fca5a5;
    font-size:11px;
    line-height:1.4;
}

.input-wrap{
    position:relative;
}

.input-wrap input{
    padding-left:46px;
    padding-right:74px;
}

.input-icon{
    position:absolute;
    top:50%;
    left:16px;
    z-index:2;
    color:var(--muted);
    font-size:15px;
    transform:translateY(-50%);
    pointer-events:none;
}

.input-wrap:focus-within .input-icon{
    color:var(--primary-2);
}

.password-toggle{
    position:absolute;
    top:50%;
    right:8px;
    z-index:3;
    height:34px;
    min-width:58px;
    padding:0 11px;
    color:#ddd6fe;
    border:1px solid var(--border);
    border-radius:999px;
    background:var(--surface-soft);
    font-size:11px;
    font-weight:900;
    transform:translateY(-50%);
    transition:background var(--transition), border-color var(--transition), color var(--transition);
}

.password-toggle:hover{
    color:#fff;
    border-color:rgba(139,92,246,.34);
    background:rgba(139,92,246,.20);
}

.login-options{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:14px;
    margin:2px 0 18px;
}

.remember-row{
    display:inline-flex;
    align-items:center;
    gap:8px;
    color:var(--soft);
    font-size:12px;
    font-weight:750;
    cursor:pointer;
}

.remember-row input{
    width:16px;
    height:16px;
    min-height:auto;
    flex:0 0 16px;
    margin:0;
    accent-color:var(--primary);
    cursor:pointer;
}

.forgot-link{
    color:#ddd6fe;
    font-size:12px;
    font-weight:850;
    transition:color var(--transition);
}

.forgot-link:hover{
    color:#fff;
}

.auth-btn{
    width:100%;
    height:50px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    color:#fff;
    border:0;
    border-radius:999px;
    background:linear-gradient(135deg, var(--primary), var(--primary-2));
    box-shadow:0 18px 38px rgba(139,92,246,.27);
    font-size:14px;
    font-weight:950;
    transition:transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

.auth-btn:hover{
    transform:translateY(-2px);
    box-shadow:0 25px 48px rgba(139,92,246,.38);
    filter:saturate(1.08);
}

.auth-btn:active{
    transform:translateY(0);
}

.auth-btn:disabled{
    cursor:not-allowed;
    opacity:.55;
    transform:none;
    box-shadow:none;
}

/* =========================================================
   NOTES + DEMO ACCESS
========================================================= */

.auth-note{
    position:relative;
    z-index:2;
    margin-top:18px;
    padding:14px;
    color:var(--muted);
    border:1px solid var(--border-soft);
    border-radius:17px;
    background:var(--surface-soft);
    font-size:11px;
    line-height:1.65;
}

.auth-note strong{
    color:var(--heading);
}

.demo-access-box{
    position:relative;
    z-index:2;
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:10px;
    margin-top:18px;
}

.demo-access-box div{
    min-width:0;
    padding:13px;
    border:1px solid var(--border-soft);
    border-radius:17px;
    background:var(--surface-soft);
}

.demo-access-box span{
    display:block;
    color:var(--muted);
    font-size:10px;
    font-weight:850;
    letter-spacing:.065em;
    text-transform:uppercase;
}

.demo-access-box strong{
    display:block;
    margin-top:5px;
    overflow-wrap:anywhere;
    color:var(--heading);
    font-size:11px;
    line-height:1.45;
}

.secure-note{
    position:relative;
    z-index:2;
    display:flex;
    align-items:flex-start;
    gap:9px;
    margin-top:14px;
    padding:13px;
    color:var(--soft);
    border:1px solid rgba(34,211,238,.17);
    border-radius:17px;
    background:rgba(34,211,238,.07);
    font-size:11px;
    line-height:1.55;
}

.secure-note span{
    flex:0 0 auto;
    font-size:15px;
}

/* =========================================================
   LIGHT THEME SUPPORT
   Add class "light-theme" to body.auth-body when needed
========================================================= */

body.auth-body.light-theme{
    color-scheme:light;

    --auth-bg:#f5f7fb;
    --auth-bg-2:#ffffff;
    --auth-bg-3:#eef2ff;

    --surface:rgba(255,255,255,.84);
    --surface-2:rgba(255,255,255,.96);
    --surface-soft:rgba(15,23,42,.035);
    --surface-hover:rgba(139,92,246,.075);

    --input-bg:rgba(255,255,255,.93);
    --input-bg-hover:#ffffff;

    --border:rgba(15,23,42,.11);
    --border-soft:rgba(15,23,42,.075);
    --border-strong:rgba(15,23,42,.18);

    --text:#172033;
    --heading:#0f172a;
    --soft:#334155;
    --muted:#64748b;
    --faint:#8492a6;
    --placeholder:#94a3b8;

    --shadow-sm:0 10px 28px rgba(15,23,42,.07);
    --shadow:0 22px 65px rgba(15,23,42,.10);
    --shadow-lg:0 34px 100px rgba(15,23,42,.16);

    background:
        radial-gradient(circle at 9% 8%, rgba(139,92,246,.13), transparent 31%),
        radial-gradient(circle at 92% 10%, rgba(34,211,238,.10), transparent 29%),
        linear-gradient(135deg, #f8fafc 0%, #eef2ff 52%, #f8fafc 100%);
}

body.auth-body.light-theme::before{
    opacity:.20;
    background-image:
        linear-gradient(rgba(15,23,42,.026) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,23,42,.026) 1px, transparent 1px);
}

body.auth-body.light-theme .auth-left{
    background:
        linear-gradient(145deg, rgba(139,92,246,.045), transparent 48%),
        rgba(255,255,255,.35);
}

body.auth-body.light-theme .auth-right{
    background:
        linear-gradient(180deg, rgba(255,255,255,.20), transparent 24%),
        rgba(248,250,252,.28);
}

body.auth-body.light-theme .eyebrow{
    color:#6d28d9;
    border-color:rgba(109,40,217,.20);
    background:rgba(139,92,246,.09);
}

body.auth-body.light-theme .auth-alert-error{
    color:#991b1b;
}

body.auth-body.light-theme .auth-alert-success{
    color:#166534;
}

body.auth-body.light-theme .auth-alert-warning{
    color:#92400e;
}

body.auth-body.light-theme .forgot-link,
body.auth-body.light-theme .password-toggle{
    color:#6d28d9;
}

body.auth-body.light-theme .forgot-link:hover,
body.auth-body.light-theme .password-toggle:hover{
    color:#4c1d95;
}

body.auth-body.light-theme .form-group input{
    box-shadow:inset 0 1px 0 rgba(255,255,255,.80);
}

body.auth-body.light-theme input:-webkit-autofill,
body.auth-body.light-theme input:-webkit-autofill:hover,
body.auth-body.light-theme input:-webkit-autofill:focus{
    -webkit-text-fill-color:var(--text);
    -webkit-box-shadow:0 0 0 1000px #fff inset;
    transition:background-color 9999s ease-in-out 0s;
}

body.auth-body:not(.light-theme) input:-webkit-autofill,
body.auth-body:not(.light-theme) input:-webkit-autofill:hover,
body.auth-body:not(.light-theme) input:-webkit-autofill:focus{
    -webkit-text-fill-color:var(--text);
    -webkit-box-shadow:0 0 0 1000px var(--auth-bg-2) inset;
    transition:background-color 9999s ease-in-out 0s;
}

/* =========================================================
   RESPONSIVE
========================================================= */

@media(max-width:1100px){
    .auth-shell{
        grid-template-columns:minmax(0,1fr) minmax(400px,.95fr);
    }

    .auth-left{
        padding:34px;
    }

    .auth-copy h1{
        font-size:clamp(40px,5vw,52px);
    }
}

@media(max-width:980px){
    .auth-shell{
        grid-template-columns:1fr;
    }

    .auth-left{
        min-height:auto;
        padding:28px;
        border-right:0;
        border-bottom:1px solid var(--border);
    }

    .auth-copy{
        padding:64px 0 12px;
    }

    .auth-copy h1{
        max-width:760px;
        font-size:42px;
    }

    .auth-copy p{
        max-width:720px;
    }

    .auth-right{
        min-height:600px;
        padding:36px 28px;
    }
}

@media(max-width:720px){
    .auth-highlights{
        grid-template-columns:1fr;
        max-width:none;
    }

    .auth-trust-strip{
        flex-direction:column;
    }

    .auth-trust-strip div{
        width:100%;
        justify-content:center;
    }
}

@media(max-width:640px){
    .auth-left{
        padding:22px 18px;
    }

    .auth-copy{
        padding:48px 0 8px;
    }

    .auth-copy h1{
        font-size:34px;
        letter-spacing:-.05em;
    }

    .auth-copy p{
        font-size:14px;
    }

    .auth-right{
        min-height:auto;
        padding:28px 16px 40px;
    }

    .auth-card{
        padding:23px 20px;
        border-radius:24px;
    }

    .auth-card-header h2{
        font-size:27px;
    }

    .login-options{
        align-items:flex-start;
        flex-direction:column;
    }

    .demo-access-box{
        grid-template-columns:1fr;
    }
}

@media(max-width:420px){
    .auth-brand{
        gap:10px;
    }

    .auth-logo{
        width:48px;
        height:48px;
        flex-basis:48px;
        border-radius:15px;
    }

    .auth-copy h1{
        font-size:31px;
    }

    .auth-card{
        padding:21px 17px;
    }

    .input-wrap input{
        padding-left:42px;
        padding-right:68px;
    }

    .input-icon{
        left:14px;
    }
}

/* =========================================================
   ACCESSIBILITY + REDUCED MOTION
========================================================= */

@media(prefers-reduced-motion:reduce){
    *,
    *::before,
    *::after{
        scroll-behavior:auto !important;
        transition-duration:.001ms !important;
        animation-duration:.001ms !important;
        animation-iteration-count:1 !important;
    }
}

@media(forced-colors:active){
    .auth-card,
    .auth-highlights div,
    .auth-btn,
    .form-group input,
    .password-toggle{
        forced-color-adjust:auto;
    }
}

@media print{
    body.auth-body{
        color:#111827;
        background:#fff !important;
    }

    .auth-shell{
        display:block;
    }

    .auth-left{
        display:none;
    }

    .auth-right{
        min-height:auto;
        padding:0;
    }

    .auth-card{
        width:100%;
        color:#111827;
        border:1px solid #d1d5db;
        background:#fff !important;
        box-shadow:none;
        backdrop-filter:none;
    }
}