@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=DM+Serif+Display:ital@0;1&display=swap');

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

:root {
    --azul-profundo: #0a1628;
    --azul-medio: #0f2550;
    --azul-acento: #1a56db;
    --azul-claro: #3b82f6;
    --azul-brillo: #60a5fa;
    --dorado: #f59e0b;
    --blanco: #ffffff;
    --gris-suave: #f8faff;
    --gris-texto: #94a3b8;
    --borde: rgba(255,255,255,0.08);
}

body {
    font-family: 'Outfit', sans-serif;
    background: var(--azul-profundo);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 20% 50%, rgba(26,86,219,0.18) 0%, transparent 60%),
        radial-gradient(ellipse 60% 80% at 80% 20%, rgba(96,165,250,0.10) 0%, transparent 55%),
        radial-gradient(ellipse 50% 50% at 60% 80%, rgba(245,158,11,0.06) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.grid-bg {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

.login-page {
    position: relative;
    z-index: 1;
    display: flex;
    width: 92%;
    max-width: 960px;
    min-height: 580px;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.07);
    box-shadow:
        0 0 0 1px rgba(26,86,219,0.15),
        0 40px 80px rgba(0,0,0,0.5),
        0 0 120px rgba(26,86,219,0.12);
    animation: aparecer 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.login-page{
    animation: aparecer 0.8s cubic-bezier(0.16, 1, 0.3, 1) both,
               zoomFlotante 10s ease-in-out infinite;
}

@keyframes zoomFlotante {
    0%{
        transform: scale(0.98);
    }
    50%{
        transform: scale(1.03);
    }
    100%{
        transform: scale(0.98);
    }
}

.login-image {
    flex: 1.1;
    position: relative;
    background: linear-gradient(135deg, #0d2158 0%, #0a1628 50%, #061030 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-start;
    padding: 48px;
    overflow: hidden;
}

.login-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('assets/img/fondo estudiante.jpg') center/cover no-repeat;
    opacity: 0.18;
    mix-blend-mode: luminosity;
}

.login-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(10,22,40,0.3) 0%,
        rgba(10,22,40,0.15) 30%,
        rgba(10,22,40,0.75) 100%
    );
}

.orbe {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    pointer-events: none;
}
.orbe-1 {
    width: 260px; height: 260px;
    background: rgba(26,86,219,0.35);
    top: -80px; right: -60px;
}
.orbe-2 {
    width: 180px; height: 180px;
    background: rgba(96,165,250,0.2);
    bottom: 80px; right: 20px;
}
.orbe-3 {
    width: 120px; height: 120px;
    background: rgba(245,158,11,0.15);
    top: 40%; left: 10%;
}

.img-content {
    position: relative;
    z-index: 2;
}

.img-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(26,86,219,0.3);
    border: 1px solid rgba(96,165,250,0.3);
    border-radius: 100px;
    padding: 6px 16px;
    font-size: 12px;
    font-weight: 500;
    color: var(--azul-brillo);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 20px;
    backdrop-filter: blur(8px);
}
.img-badge span {
    width: 6px; height: 6px;
    background: var(--azul-brillo);
    border-radius: 50%;
    animation: pulso 2s ease-in-out infinite;
}
@keyframes pulso {
    0%,100% { opacity: 1; transform: scale(1); }
    50%      { opacity: 0.4; transform: scale(0.7); }
}

.img-titulo {
    font-family: 'DM Serif Display', serif;
    font-size: 42px;
    line-height: 1.1;
    color: var(--blanco);
    margin-bottom: 16px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.4);
}
.img-titulo em {
    font-style: italic;
    color: var(--azul-brillo);
}

.img-desc {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    line-height: 1.6;
    max-width: 320px;
}

.puntos {
    position: absolute;
    top: 40px; left: 40px;
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 10px;
    z-index: 1;
    opacity: 0.2;
}
.puntos span {
    width: 3px; height: 3px;
    background: white;
    border-radius: 50%;
    display: block;
}

.login-form {
    flex: 1;
    background: rgba(255,255,255,0.97);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 56px 48px;
    position: relative;
}

.login-form::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 4px;
    background: linear-gradient(90deg, var(--azul-acento), var(--azul-claro), var(--dorado));
}

.form-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 36px;
}
.form-logo img {
    width: 120px;
    height: 120px;
    object-fit: contain;
}
.form-logo-texto {
    display: flex;
    flex-direction: column;
}
.form-logo-nombre {
    font-size: 35px;
    font-weight: 700;
    color: var(--azul-profundo);
    letter-spacing: 0.05em;
    line-height: 1;
}
.form-logo-sub {
    font-size: 15px;
    color: var(--gris-texto);
    font-weight: 400;
    letter-spacing: 0.03em;
}

.form-titulo {
    font-size: 26px;
    font-weight: 700;
    color: var(--azul-profundo);
    margin-bottom: 6px;
    letter-spacing: -0.02em;
}
.form-subtitulo {
    font-size: 14px;
    color: var(--gris-texto);
    margin-bottom: 32px;
}

.campo {
    position: relative;
    margin-bottom: 16px;
}

.campo label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: #475569;
    margin-bottom: 6px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.campo-input {
    position: relative;
}

.campo-input svg {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    width: 16px;
    height: 16px;
    pointer-events: none;
    transition: color 0.2s;
}

.campo input {
    width: 100%;
    padding: 12px 14px 12px 42px;
    border: 1.5px solid #e2e8f0;
    border-radius: 10px;
    font-size: 14px;
    font-family: 'Outfit', sans-serif;
    color: var(--azul-profundo);
    background: var(--gris-suave);
    outline: none;
    transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}

.campo input::placeholder { color: #c0cce0; }

.campo input:focus {
    border-color: var(--azul-claro);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(59,130,246,0.12);
}

.campo input:focus + svg,
.campo-input:focus-within svg {
    color: var(--azul-claro);
}

.campo-codigo {
    display: none;
    animation: deslizar 0.35s cubic-bezier(0.16,1,0.3,1) both;
}
@keyframes deslizar {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.error {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 8px;
    padding: 10px 14px;
    color: #dc2626;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 20px;
}
.error::before {
    content: '⚠';
    font-size: 14px;
}

.btn-submit {
    width: 100%;
    padding: 14px;
    margin-top: 8px;
    background: linear-gradient(135deg, var(--azul-acento) 0%, #1d4ed8 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    font-family: 'Outfit', sans-serif;
    cursor: pointer;
    letter-spacing: 0.02em;
    transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
    box-shadow: 0 4px 16px rgba(26,86,219,0.3);
    position: relative;
    overflow: hidden;
}
.btn-submit::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.12) 0%, transparent 60%);
    pointer-events: none;
}
.btn-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(26,86,219,0.4);
    background: linear-gradient(135deg, #1d4ed8 0%, var(--azul-claro) 100%);
}
.btn-submit:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(26,86,219,0.3);
}

.form-footer {
    margin-top: 24px;
    text-align: center;
    font-size: 12px;
    color: #94a3b8;
}
.form-footer a {
    color: var(--azul-claro);
    text-decoration: none;
    font-weight: 500;
}
.form-footer a:hover { text-decoration: underline; }

@media (max-width: 680px) {
    body {
        overflow-y: auto;
        align-items: flex-start;
        padding: 20px 0;
    }
    .login-page {
        flex-direction: column;
        min-height: auto;
        max-width: 440px;
        border-radius: 20px;
        margin: auto;
    }
    .login-image {
        display: flex;
        flex: none;
        min-height: 280px;
        padding: 40px 32px;
        justify-content: center;
    }
    .img-titulo {
        font-size: 32px;
        margin-bottom: 12px;
    }
    .img-desc {
        display: block;
        font-size: 13px;
        max-width: 100%;
        opacity: 0.8;
    }
    .puntos {
        display: none;
    }
    .login-form {
        padding: 40px 32px;
    }
}