/* ========================================
   LOGIN PAGE
======================================== */

:root{
    --font-main:"Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --ink:#0d1b2a;
    --ink-soft:#26364d;
    --muted:#64748b;
    --paper:#f7fafc;
    --paper-soft:#eef6f8;
    --white:#ffffff;
    --line:rgba(15, 23, 42, .12);
    --navy:#071527;
    --navy-2:#10243a;
    --blue:#2563eb;
    --teal:#0f766e;
    --amber:#f5b83d;
    --danger:#dc2626;
    --radius:8px;
    --shadow-soft:0 18px 50px rgba(15, 23, 42, .12);
    --shadow-strong:0 28px 90px rgba(2, 8, 23, .25);
    --ease:cubic-bezier(.2, .8, .2, 1);
}

*{
    box-sizing:border-box;
}

html,
body{
    width:100%;
    min-height:100%;
}

body{
    margin:0;
    padding:0;
    overflow-x:hidden;
    font-family:var(--font-main);
    color:var(--ink);
    background:
        linear-gradient(135deg, rgba(247,250,252,.96), rgba(238,246,248,.94)),
        linear-gradient(120deg, rgba(37,99,235,.12), transparent 44%),
        linear-gradient(310deg, rgba(15,118,110,.12), transparent 46%);
    text-rendering:optimizeLegibility;
    -webkit-font-smoothing:antialiased;
}

.login-section{
    position:relative;
    min-height:100svh;
    display:flex;
    align-items:center;
    overflow:hidden;
    padding:48px 0;
    background:
        linear-gradient(rgba(15,23,42,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,23,42,.045) 1px, transparent 1px);
    background-size:56px 56px;
}

.login-section::before{
    content:"";
    position:absolute;
    inset:0;
    pointer-events:none;
    background:
        linear-gradient(115deg, rgba(7,21,39,.96) 0%, rgba(16,36,58,.92) 53%, transparent 53.2%),
        linear-gradient(180deg, rgba(255,255,255,.7), transparent 42%);
}

.login-section::after{
    content:"";
    position:absolute;
    left:0;
    right:0;
    bottom:0;
    height:36%;
    pointer-events:none;
    background:linear-gradient(180deg, transparent, rgba(255,255,255,.72));
}

.login-section .container{
    position:relative;
    z-index:2;
}

.login-section .row{
    min-height:calc(100svh - 96px) !important;
}

.login-branding{
    position:relative;
    max-width:620px;
    color:#ffffff;
    padding:24px 0 320px;
}

.login-branding::before{
    content:"";
    position:absolute;
    left:-28px;
    top:-28px;
    width:88px;
    height:88px;
    border-left:1px solid rgba(255,255,255,.28);
    border-top:1px solid rgba(255,255,255,.28);
}

.login-branding::after{
    content:"";
    position:absolute;
    left:0;
    bottom:0;
    width:min(520px, 100%);
    aspect-ratio:16 / 10;
    border-radius:var(--radius);
    background:
        linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.02)),
        url('../images/mockup-edduvest.png') center / cover no-repeat;
    border:1px solid rgba(255,255,255,.18);
    box-shadow:var(--shadow-strong);
}

.login-badge{
    display:inline-flex;
    align-items:center;
    min-height:40px;
    max-width:100%;
    padding:9px 16px;
    border-radius:999px;
    color:#dbeafe;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.18);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.14);
    font-size:.9rem;
    font-weight:750;
    line-height:1.35;
}

.login-title{
    margin:22px 0 0;
    color:#ffffff;
    font-size:5.4rem;
    font-weight:900;
    line-height:1;
    letter-spacing:0;
    text-shadow:0 18px 55px rgba(2, 8, 23, .36);
}

.login-description{
    max-width:540px;
    margin:24px 0 0;
    color:rgba(236, 244, 255, .82);
    font-size:1.06rem;
    line-height:1.9;
}

.login-card{
    position:relative;
    width:100%;
    padding:42px;
    border-radius:var(--radius);
    background:rgba(255,255,255,.92);
    border:1px solid rgba(255,255,255,.86);
    box-shadow:var(--shadow-soft);
    backdrop-filter:blur(18px);
}

.login-card::before{
    content:"";
    position:absolute;
    inset:0 0 auto;
    height:4px;
    border-radius:var(--radius) var(--radius) 0 0;
    background:linear-gradient(90deg, var(--amber), var(--teal), var(--blue));
}

.login-card-title{
    margin:0;
    color:var(--ink);
    font-size:2rem;
    font-weight:850;
    line-height:1.2;
}

.login-card-subtitle{
    margin:10px 0 28px;
    color:var(--muted);
    line-height:1.65;
}

.form-label{
    margin-bottom:8px;
    color:var(--ink-soft);
    font-size:.94rem;
    font-weight:750;
}

.form-control{
    min-height:56px;
    padding:14px 16px;
    border-radius:var(--radius);
    color:var(--ink);
    background:#ffffff;
    border:1px solid var(--line);
    box-shadow:0 1px 0 rgba(15, 23, 42, .03);
    transition:
        border-color .24s var(--ease),
        box-shadow .24s var(--ease),
        background-color .24s var(--ease);
}

.form-control::placeholder{
    color:#94a3b8;
}

.form-control:focus{
    color:var(--ink);
    background:#ffffff;
    border-color:rgba(37,99,235,.62);
    box-shadow:0 0 0 4px rgba(37,99,235,.12);
    outline:0;
}

.password-wrapper{
    position:relative;
}

.password-wrapper .form-control{
    padding-right:56px;
}

.password-wrapper button{
    position:absolute;
    right:8px;
    top:50%;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:42px;
    height:42px;
    border:0;
    border-radius:var(--radius);
    color:#52627a;
    background:transparent;
    transform:translateY(-50%);
    transition:
        color .24s var(--ease),
        background-color .24s var(--ease);
}

.password-wrapper button:hover,
.password-wrapper button:focus-visible{
    color:var(--blue);
    background:#eef4ff;
    outline:0;
}

.alert{
    border-radius:var(--radius);
    font-size:.94rem;
    line-height:1.55;
}

.alert-danger{
    color:#7f1d1d;
    background:#fee2e2;
    border-color:#fecaca;
}

.btn-login{
    position:relative;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:100%;
    min-height:56px;
    margin-top:4px;
    padding:14px 22px;
    overflow:hidden;
    border:0;
    border-radius:var(--radius);
    color:#101827;
    background:linear-gradient(135deg, #ffd86b, var(--amber));
    box-shadow:0 14px 34px rgba(245, 184, 61, .26);
    font-weight:850;
    line-height:1.2;
    transition:
        transform .24s var(--ease),
        box-shadow .24s var(--ease),
        filter .24s var(--ease);
}

.btn-login:hover{
    transform:translateY(-2px);
    box-shadow:0 18px 44px rgba(245, 184, 61, .33);
    filter:saturate(1.04);
}

.btn-login:focus-visible{
    outline:0;
    box-shadow:
        0 0 0 4px rgba(245,184,61,.24),
        0 18px 44px rgba(245,184,61,.32);
}

.register-link{
    margin-top:22px;
    color:var(--muted);
    text-align:center;
    line-height:1.65;
}

.register-link a{
    color:var(--blue);
    font-weight:800;
    text-decoration:none;
    transition:color .24s var(--ease);
}

.register-link a:hover{
    color:var(--teal);
}

.login-ripple{
    position:absolute;
    width:14px;
    height:14px;
    border-radius:50%;
    background:rgba(255,255,255,.52);
    pointer-events:none;
    transform:translate(-50%, -50%) scale(0);
    animation:loginRipple .62s ease-out forwards;
}

@keyframes loginRipple{
    to{
        opacity:0;
        transform:translate(-50%, -50%) scale(18);
    }
}

@media (max-width:1199.98px){
    .login-title{
        font-size:4.65rem;
    }

    .login-branding{
        padding-bottom:280px;
    }
}

@media (max-width:991.98px){
    .login-section{
        align-items:flex-start;
        padding:64px 0;
    }

    .login-section::before{
        background:
            linear-gradient(180deg, rgba(7,21,39,.96) 0%, rgba(16,36,58,.94) 48%, transparent 48.2%),
            linear-gradient(180deg, rgba(255,255,255,.5), transparent 70%);
    }

    .login-section .row{
        min-height:auto !important;
        row-gap:34px;
    }

    .login-branding{
        max-width:680px;
        margin:0 auto;
        padding:0 0 240px;
        text-align:center;
    }

    .login-branding::before{
        display:none;
    }

    .login-branding::after{
        left:50%;
        width:min(440px, 88%);
        transform:translateX(-50%);
    }

    .login-description{
        margin-left:auto;
        margin-right:auto;
    }

    .login-title{
        font-size:4.2rem;
    }

    .login-card{
        max-width:560px;
        margin:0 auto;
    }
}

@media (max-width:767.98px){
    .login-section{
        padding:44px 0;
    }

    .container{
        padding-left:22px;
        padding-right:22px;
    }

    .login-section::before{
        background:
            linear-gradient(180deg, rgba(7,21,39,.97) 0%, rgba(16,36,58,.95) 52%, transparent 52.2%),
            linear-gradient(180deg, rgba(255,255,255,.54), transparent 72%);
    }

    .login-branding{
        padding-bottom:250px;
    }

    .login-branding::after{
        width:min(400px, 86%);
    }

    .login-badge{
        min-height:36px;
        padding:8px 13px;
        font-size:.78rem;
    }

    .login-title{
        font-size:3.2rem;
    }

    .login-description{
        font-size:1rem;
        line-height:1.78;
    }

    .login-card{
        padding:32px 24px;
    }

    .login-card-title{
        font-size:1.75rem;
    }

    .form-control,
    .btn-login{
        min-height:54px;
    }
}

@media (max-width:575.98px){
    .login-section{
        padding:34px 0;
    }

    .container{
        padding-left:18px;
        padding-right:18px;
    }

    .login-branding{
        padding-bottom:230px;
    }

    .login-branding::after{
        width:min(350px, 84%);
    }

    .login-title{
        font-size:2.82rem;
    }

    .login-description{
        margin-top:18px;
    }

    .login-card{
        padding:30px 20px;
    }

    .login-card-subtitle{
        margin-bottom:22px;
    }
}

@media (max-width:380px){
    .login-title{
        font-size:2.48rem;
    }

    .login-card{
        padding-left:18px;
        padding-right:18px;
    }

    .login-branding{
        padding-bottom:200px;
    }

    .login-branding::after{
        width:min(280px, 80%);
    }
}

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

/* ------------------------------------------
   Refinement � readability & interaction
   ------------------------------------------ */

/* -- Auth spinner -- */
.auth-spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2.5px solid rgba(255,255,255,.35);
    border-top-color: #fff;
    border-radius: 50%;
    animation: authSpin .6s linear infinite;
    vertical-align: middle;
    margin-right: 8px;
}
@keyframes authSpin {
    to { transform: rotate(360deg); }
}

.btn-login:disabled {
    opacity: .75;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* -- Validation hint -- */
.auth-hint {
    display: block;
    margin-top: 6px;
    font-size: .78rem;
    font-weight: 700;
    color: var(--danger, #dc2626);
    transition: opacity .2s ease;
}

/* -- Field focus glow -- */
.field-focused .form-label {
    color: var(--blue, #2563eb);
}
.field-focused .form-control {
    border-color: rgba(37,99,235,.5);
    box-shadow: 0 0 0 4px rgba(37,99,235,.1);
}

/* -- Password wrapper refinement -- */
.password-wrapper button {
    transition: color .2s ease, background .2s ease, transform .2s ease;
}

/* -- Login card elevation -- */
.login-card {
    transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.login-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 22px 60px rgba(15,23,42,.14);
}

/* -- Better focus-visible -- */
:focus-visible {
    outline: 2.5px solid var(--blue, #2563eb);
    outline-offset: 2px;
    border-radius: 2px;
}

/* -- Disable hover on touch -- */
@media (hover: none) and (pointer: coarse) {
    .login-card:hover {
        transform: none;
        box-shadow: var(--shadow-soft);
    }
    .btn-login:hover {
        transform: none !important;
        box-shadow: 0 14px 34px rgba(245,184,61,.26) !important;
    }
    .login-link a:hover {
        color: var(--blue);
    }
}

/* -- Mobile refinements -- */
@media (max-width: 575.98px) {
    .login-card {
        padding: 28px 18px;
    }
    .login-card-title {
        font-size: 1.55rem;
    }
    .login-card-subtitle {
        font-size: .9rem;
        margin-bottom: 22px;
    }
    .form-control,
    .btn-login {
        min-height: 50px;
        font-size: .95rem;
    }
    .password-wrapper button {
        width: 44px;
        height: 44px;
    }
    .auth-hint {
        font-size: .72rem;
    }
}

@media (max-width: 400px) {
    .container {
        padding-left: 14px !important;
        padding-right: 14px !important;
    }
    .login-card {
        padding: 24px 14px;
    }
    .login-title {
        font-size: 2.5rem;
    }
    .form-control,
    .btn-login {
        min-height: 46px;
        font-size: .9rem;
    }
}