/* Login institucional - Ubaté
   Ajuste UX responsive centrado.
   No modifica autenticación, CSRF, sesiones ni lógica PHP. */

:root{
    --login-navy:#1d3154;
    --login-blue:#3561df;
    --login-text:#243957;
    --login-muted:#7b899e;
    --login-border:#d8e0eb;
}

*{box-sizing:border-box}
html,body{width:100%;min-height:100%;margin:0}

body.login-page{
    min-height:100vh;
    min-height:100dvh;
    overflow-x:hidden;
    color:var(--login-text);
    background:#dce6f5;
    font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
}

/* Fotografía a pantalla completa. */
.login-shell{
    position:relative;
    width:100%;
    min-height:100vh;
    min-height:100dvh;
    overflow:hidden;
    display:flex;
    align-items:center;
    justify-content:center;
    background:#9bb0cf;
}

.login-visual{
    position:fixed;
    inset:0;
    z-index:0;
    background:#9bb0cf url('../img/login-ubate-collage.jpg') center center/cover no-repeat;
}

/* Oscurece apenas la foto y suaviza el área detrás de la tarjeta. */
.login-visual::after{
    content:"";
    position:absolute;
    inset:0;
    background:
        radial-gradient(ellipse 42% 72% at 50% 50%, rgba(255,255,255,.78) 0%, rgba(255,255,255,.42) 46%, rgba(255,255,255,.08) 73%, rgba(255,255,255,0) 100%),
        linear-gradient(180deg,rgba(10,28,58,.08),rgba(10,28,58,.02) 52%,rgba(10,28,58,.14));
    pointer-events:none;
}

.login-visual-overlay{
    position:absolute;
    inset:0;
    background:rgba(255,255,255,.02);
    pointer-events:none;
}

/* Se eliminan los textos sobre la fotografía. */
.login-visual-content{display:none!important}

/* Centro real de la pantalla. */
.login-panel{
    position:relative;
    z-index:5;
    width:100%;
    min-height:100vh;
    min-height:100dvh;
    padding:24px 18px;
    display:flex;
    align-items:center;
    justify-content:center;
    background:transparent;
}

/* Tarjeta compacta estilo Google/Material. */
.login-card{
    width:min(480px, calc(100vw - 36px));
    max-height:calc(100dvh - 48px);
    padding:32px 34px 24px;
    overflow-y:auto;
    overscroll-behavior:contain;
    border:1px solid rgba(219,227,239,.94);
    border-radius:28px;
    background:rgba(255,255,255,.975);
    box-shadow:0 24px 65px rgba(20,37,68,.22),0 5px 18px rgba(20,37,68,.09);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    scrollbar-width:thin;
}

.login-card::-webkit-scrollbar{width:6px}
.login-card::-webkit-scrollbar-thumb{background:#cbd6e7;border-radius:99px}

.login-brand{text-align:center}

.login-logo{
    width:66px;
    height:66px;
    display:block;
    margin:0 auto 13px;
    object-fit:contain;
    border-radius:17px;
}

.brand-mark{
    width:66px;
    height:66px;
    margin:0 auto 13px;
    display:grid;
    place-items:center;
    border-radius:17px;
    background:var(--login-navy);
    color:#fff;
    font-weight:900;
    font-size:22px;
}

.login-brand h1{
    margin:0;
    color:#1d3154;
    font-size:clamp(22px,2.3vw,29px);
    line-height:1.16;
    letter-spacing:-.035em;
}

.login-brand p{
    margin:7px 0 0;
    color:#71809a;
    font-size:14px;
    font-weight:600;
}

.login-heading{
    margin:27px 0 21px;
}

.login-heading>span{
    display:block;
    margin-bottom:7px;
    color:#5572a4;
    font-size:11px;
    font-weight:800;
    letter-spacing:.12em;
    text-transform:uppercase;
}

.login-heading h2{
    margin:0;
    color:#1d3150;
    font-size:28px;
    line-height:1.1;
    letter-spacing:-.035em;
}

.login-heading p{
    margin:8px 0 0;
    color:#7b899e;
    font-size:15px;
    line-height:1.45;
}

.login-alert{
    margin:0 0 13px;
    padding:10px 12px;
    border-radius:12px;
    font-size:12px;
    line-height:1.4;
    font-weight:650;
}

.login-alert.error{
    color:#9d2e35;
    background:#fff0f1;
    border:1px solid #ffd6d9;
}

.login-form{display:grid;gap:18px}
.login-field{display:block;margin:0}

.login-field>span:first-child{
    display:block;
    margin:0 0 8px 2px;
    color:#354a68;
    font-size:14px;
    font-weight:600;
}

.login-input-wrap{
    position:relative;
    display:flex;
    align-items:center;
}

.login-field-icon{
    position:absolute;
    left:15px;
    width:21px;
    height:21px;
    color:#6d83a2;
    pointer-events:none;
}

.login-input-wrap input{
    width:100%;
    height:56px;
    min-height:56px;
    padding:0 48px 0 45px;
    border:1px solid var(--login-border);
    border-radius:14px;
    outline:none;
    background:#fff;
    color:#243957;
    font:inherit;
    font-size:15px;
    transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}

.login-input-wrap input::placeholder{color:#9aa8bb}
.login-input-wrap input:hover{border-color:#c7d2e2}
.login-input-wrap input:focus{
    background:#fff;
    border-color:#6b89eb;
    box-shadow:0 0 0 3px rgba(53,97,223,.12);
}

.login-password-toggle{
    position:absolute;
    right:9px;
    width:38px;
    height:38px;
    display:grid;
    place-items:center;
    padding:0;
    border:0;
    border-radius:10px;
    background:transparent;
    color:#647897;
    cursor:pointer;
}

.login-password-toggle:hover{background:#eef3fb;color:#315bdc}
.login-password-toggle svg{width:19px;height:19px}

.login-submit{
    width:100%;
    height:56px;
    min-height:56px;
    margin-top:2px;
    display:flex;
    align-items:center;
    justify-content:center;
    gap:10px;
    border:0;
    border-radius:14px;
    background:#3561df;
    color:#fff;
    font:inherit;
    font-size:15px;
    font-weight:750;
    cursor:pointer;
    box-shadow:0 8px 20px rgba(53,97,223,.22);
    transition:transform .18s ease,box-shadow .18s ease,background .18s ease;
}

.login-submit:hover{
    background:#2f56cb;
    transform:translateY(-1px);
    box-shadow:0 11px 24px rgba(53,97,223,.27);
}

.login-submit:active{transform:translateY(0)}
.login-submit svg{width:19px;height:19px}

.login-security{
    margin-top:17px;
    padding-top:14px;
    display:flex;
    align-items:center;
    justify-content:center;
    gap:7px;
    border-top:1px solid #edf1f6;
    color:#8794a8;
    text-align:center;
    font-size:10.5px;
    line-height:1.35;
}

.login-security svg{width:16px;height:16px;flex:none;color:#5570a0}

/* Portátiles con poca altura: reduce espacios sin deformar el formulario. */
@media (max-height:760px) and (min-width:561px){
    .login-panel{padding:12px 16px}
    .login-card{
        width:min(460px,calc(100vw - 32px));
        max-height:calc(100dvh - 24px);
        padding:22px 28px 18px;
        border-radius:24px;
    }
    .login-logo,.brand-mark{width:54px;height:54px;border-radius:14px;margin-bottom:7px}
    .login-brand h1{font-size:22px}
    .login-brand p{font-size:12px;margin-top:3px}
    .login-heading{margin:16px 0 13px}
    .login-heading>span{margin-bottom:4px;font-size:10px}
    .login-heading h2{font-size:24px}
    .login-heading p{margin-top:5px;font-size:12px}
    .login-form{gap:10px}
    .login-field>span:first-child{margin-bottom:5px;font-size:12px}
    .login-input-wrap input{height:45px;min-height:45px;font-size:13px}
    .login-submit{height:46px;min-height:46px;font-size:13px}
    .login-security{margin-top:9px;padding-top:8px;font-size:9px}
}

/* Tablet. */
@media (max-width:900px){
    .login-visual::after{
        background:
            radial-gradient(ellipse 85% 70% at 50% 50%,rgba(255,255,255,.82) 0%,rgba(255,255,255,.48) 50%,rgba(255,255,255,.08) 78%,rgba(255,255,255,0) 100%),
            linear-gradient(180deg,rgba(10,28,58,.07),rgba(10,28,58,.04));
    }
}

/* Móvil: tarjeta casi a todo el ancho, manteniendo márgenes cómodos. */
@media (max-width:560px){
    .login-panel{padding:12px}

    .login-card{
        width:100%;
        max-height:calc(100dvh - 24px);
        padding:24px 20px 18px;
        border-radius:22px;
        box-shadow:0 18px 45px rgba(22,39,70,.20);
    }

    .login-logo,.brand-mark{width:58px;height:58px;border-radius:14px;margin-bottom:10px}
    .login-brand h1{font-size:21px}
    .login-brand p{font-size:13px}
    .login-heading{margin:21px 0 17px}
    .login-heading h2{font-size:25px}
    .login-heading p{font-size:13px}
    .login-form{gap:15px}
    .login-field>span:first-child{font-size:13px;margin-bottom:7px}
    .login-input-wrap input{height:52px;min-height:52px;font-size:14px}
    .login-submit{height:53px;min-height:53px}
    .login-security{margin-top:13px;padding-top:11px;font-size:9.5px}
}

/* Móviles pequeños / pantallas muy bajas. */
@media (max-width:380px), (max-height:680px) and (max-width:560px){
    .login-panel{padding:8px}
    .login-card{
        width:100%;
        max-height:calc(100dvh - 16px);
        padding:17px 15px 14px;
        border-radius:20px;
    }
    .login-logo,.brand-mark{width:48px;height:48px;margin-bottom:5px}
    .login-brand h1{font-size:18px}
    .login-brand p{font-size:11px}
    .login-heading{margin:13px 0 9px}
    .login-heading>span{font-size:9px}
    .login-heading h2{font-size:22px}
    .login-heading p{font-size:11px;margin-top:4px}
    .login-form{gap:8px}
    .login-field>span:first-child{font-size:11px;margin-bottom:4px}
    .login-input-wrap input{height:44px;min-height:44px;font-size:12.5px}
    .login-submit{height:45px;min-height:45px;font-size:13px}
    .login-security{margin-top:7px;padding-top:6px;font-size:8.5px}
}

@media (prefers-reduced-motion:reduce){
    .login-input-wrap input,.login-submit{transition:none}
}