:root{
    --cream:#fff8e7;
    --brown:#8b5e34;
    --dark-brown:#5c3d2e;
    --light-brown:#d2b48c;
    --white:#fff;
    --text:#30251f;
    --muted:#776b61;
    --border:rgba(139,94,52,.20);
    --shadow:0 24px 70px rgba(76,48,31,.18);
}

*{box-sizing:border-box}

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

body.portal-body{
    margin:0;
    min-height:100vh;
    min-height:100svh;
    font-family:"Segoe UI",Arial,sans-serif;
    color:var(--text);
    display:flex;
    align-items:center;
    justify-content:center;
    padding:clamp(16px,4vw,48px);
    overflow-x:hidden;
    position:relative;
    isolation:isolate;
    background:
        radial-gradient(circle at 10% 15%,rgba(210,180,140,.42),transparent 28%),
        radial-gradient(circle at 90% 85%,rgba(139,94,52,.16),transparent 30%),
        linear-gradient(135deg,#fffdf8 0%,var(--cream) 52%,#f4ead9 100%);
}

body.portal-body::before,
body.portal-body::after{
    content:"";
    position:fixed;
    z-index:-1;
    border-radius:50%;
    pointer-events:none;
    filter:blur(1px);
}

body.portal-body::before{
    width:clamp(180px,30vw,420px);
    height:clamp(180px,30vw,420px);
    top:-10%;
    left:-8%;
    background:rgba(139,94,52,.12);
    animation:floatOne 10s ease-in-out infinite;
}

body.portal-body::after{
    width:clamp(160px,25vw,350px);
    height:clamp(160px,25vw,350px);
    right:-8%;
    bottom:-12%;
    background:rgba(210,180,140,.30);
    animation:floatTwo 12s ease-in-out infinite;
}

.login-card{
    width:min(100%,470px);
    padding:clamp(22px,5vw,42px);
    background:rgba(255,255,255,.91);
    border:1px solid rgba(255,255,255,.8);
    border-radius:clamp(18px,4vw,28px);
    box-shadow:var(--shadow);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    position:relative;
    overflow:hidden;
    animation:cardIn .75s cubic-bezier(.2,.8,.2,1) both;
}

.login-card::before{
    content:"";
    position:absolute;
    left:0;
    top:0;
    width:100%;
    height:4px;
    background:linear-gradient(90deg,var(--dark-brown),var(--brown),var(--light-brown));
    background-size:200% 100%;
    animation:gradientMove 4s linear infinite;
}

.login-card::after{
    content:"";
    position:absolute;
    width:150px;
    height:150px;
    border-radius:50%;
    right:-95px;
    top:-95px;
    background:rgba(210,180,140,.18);
    pointer-events:none;
}

.role-badge{
    width:clamp(62px,16vw,78px);
    height:clamp(62px,16vw,78px);
    margin:0 auto 16px;
    border-radius:24px;
    display:grid;
    place-items:center;
    color:#fff;
    font-size:clamp(25px,7vw,34px);
    background:linear-gradient(145deg,var(--brown),var(--dark-brown));
    box-shadow:0 14px 30px rgba(92,61,46,.25);
    animation:badgeIn .8s .12s both, badgeFloat 4s 1s ease-in-out infinite;
}

.login-card h1{
    margin:0;
    text-align:center;
    color:var(--dark-brown);
    font-size:clamp(24px,6vw,32px);
    line-height:1.15;
    letter-spacing:-.5px;
}

.login-subtitle{
    margin:9px auto 24px;
    text-align:center;
    color:var(--muted);
    font-size:clamp(13px,3.5vw,15px);
    line-height:1.5;
}

.login-switch{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:6px;
    padding:5px;
    background:#f6efe4;
    border:1px solid var(--border);
    border-radius:13px;
    margin-bottom:23px;
}

.login-switch a{
    min-width:0;
    text-align:center;
    text-decoration:none;
    color:#6e5a4b;
    font-size:clamp(11px,3vw,13px);
    font-weight:700;
    padding:10px 5px;
    border-radius:9px;
    transition:transform .25s ease,background .25s ease,color .25s ease,box-shadow .25s ease;
}

.login-switch a:hover{
    color:var(--dark-brown);
    transform:translateY(-1px);
}

.login-switch a.active-role{
    color:#fff;
    background:var(--brown);
    box-shadow:0 6px 15px rgba(139,94,52,.23);
}

.input-group{
    position:relative;
    margin-bottom:17px;
}

.input-group label{
    display:block;
    margin:0 0 7px 2px;
    font-size:13px;
    font-weight:700;
    color:var(--dark-brown);
}

.input-group input{
    width:100%;
    min-height:52px;
    border:1px solid #d8c7b3;
    border-radius:12px;
    outline:none;
    background:#fff;
    color:var(--text);
    padding:13px 46px 13px 45px;
    font:inherit;
    font-size:15px;
    transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease,background .25s ease;
}

.input-group input:hover{
    border-color:#bd9a73;
}

.input-group input:focus{
    border-color:var(--brown);
    background:#fffdfa;
    box-shadow:0 0 0 4px rgba(139,94,52,.11);
    transform:translateY(-1px);
}

.field-icon{
    position:absolute;
    left:15px;
    bottom:17px;
    color:var(--brown);
    pointer-events:none;
    transition:transform .25s ease;
}

.input-group:focus-within .field-icon{
    transform:scale(1.08);
}

.toggle-password{
    position:absolute;
    right:9px;
    bottom:7px;
    width:38px;
    height:38px;
    border:0;
    border-radius:9px;
    background:transparent;
    color:#806d5e;
    cursor:pointer;
    transition:background .2s ease,color .2s ease,transform .2s ease;
}

.toggle-password:hover{
    background:#f4eadc;
    color:var(--dark-brown);
    transform:scale(1.05);
}

#loginForm>button[type="submit"]{
    width:100%;
    min-height:53px;
    border:0;
    border-radius:12px;
    cursor:pointer;
    color:#fff;
    font:inherit;
    font-weight:800;
    letter-spacing:.4px;
    background:linear-gradient(135deg,var(--dark-brown),var(--brown));
    box-shadow:0 12px 24px rgba(92,61,46,.22);
    transition:transform .25s ease,box-shadow .25s ease,filter .25s ease;
    position:relative;
    overflow:hidden;
}

#loginForm>button[type="submit"]::before{
    content:"";
    position:absolute;
    top:0;
    left:-120%;
    width:70%;
    height:100%;
    background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);
    transform:skewX(-20deg);
    transition:left .7s ease;
}

#loginForm>button[type="submit"]:hover{
    transform:translateY(-2px);
    box-shadow:0 16px 30px rgba(92,61,46,.28);
    filter:brightness(1.04);
}

#loginForm>button[type="submit"]:hover::before{
    left:140%;
}

#loginForm>button[type="submit"]:active{
    transform:translateY(0);
}

.form-message{
    min-height:20px;
    margin:11px 0 0;
    text-align:center;
    font-size:13px;
    line-height:1.4;
}

.login-footer{
    margin:19px 0 14px;
    text-align:center;
    color:var(--muted);
    font-size:12px;
    line-height:1.6;
}

.back-home{
    display:block;
    text-align:center;
    color:var(--brown);
    text-decoration:none;
    font-size:13px;
    font-weight:700;
    transition:color .2s ease,transform .2s ease;
}

.back-home:hover{
    color:var(--dark-brown);
    transform:translateX(-2px);
}

.credentials-box{
    margin-top:16px;
    padding:13px 14px;
    border:1px solid rgba(139,94,52,.17);
    border-radius:11px;
    background:#fff8e9;
    color:#665344;
    font-size:12px;
    line-height:1.7;
    overflow-wrap:anywhere;
}

.credentials-box code{
    background:#eadcc9;
    padding:2px 5px;
    border-radius:5px;
}

@keyframes cardIn{
    from{opacity:0;transform:translateY(30px) scale(.97)}
    to{opacity:1;transform:translateY(0) scale(1)}
}

@keyframes badgeIn{
    from{opacity:0;transform:scale(.65) rotate(-8deg)}
    to{opacity:1;transform:scale(1) rotate(0)}
}

@keyframes badgeFloat{
    0%,100%{transform:translateY(0)}
    50%{transform:translateY(-5px)}
}

@keyframes floatOne{
    0%,100%{transform:translate(0,0) rotate(0)}
    50%{transform:translate(25px,20px) rotate(8deg)}
}

@keyframes floatTwo{
    0%,100%{transform:translate(0,0)}
    50%{transform:translate(-25px,-18px)}
}

@keyframes gradientMove{
    0%{background-position:0% 50%}
    100%{background-position:200% 50%}
}

@media(max-width:520px){
    body.portal-body{
        align-items:flex-start;
        padding:16px 11px;
    }

    .login-card{
        margin:10px auto;
        padding:24px 18px 22px;
        border-radius:20px;
    }

    .role-badge{
        margin-bottom:13px;
        border-radius:20px;
    }

    .login-switch{
        gap:4px;
        padding:4px;
    }

    .login-switch a{
        padding:9px 3px;
        font-size:10.5px;
    }

    .input-group input{
        min-height:50px;
        font-size:16px;
    }

    #loginForm>button[type="submit"]{
        min-height:51px;
    }
}

@media(max-width:350px){
    body.portal-body{padding:9px 7px}
    .login-card{padding:20px 13px}
    .login-switch a{font-size:9px;padding:8px 2px}
    .login-card h1{font-size:22px}
    .login-subtitle{font-size:12px}
}

@media(prefers-reduced-motion:reduce){
    *,*::before,*::after{
        animation-duration:.01ms!important;
        animation-iteration-count:1!important;
        scroll-behavior:auto!important;
        transition-duration:.01ms!important;
    }
}


/* Unified portal-login animation: Admin, Student, Staff and Parent */
body.portal-login-page .login-card,
body.auth-page .login-card,
body.login-page .login-card {
    animation: cardIn .75s cubic-bezier(.2,.8,.2,1) both;
}
body.portal-login-page .role-badge,
body.auth-page .role-badge,
body.login-page .role-badge {
    animation: badgeIn .8s .12s both, badgeFloat 4s 1s ease-in-out infinite;
}