/* Acceso administrativo — pantalla ejecutiva SICAT */
.admin-login-body {
    overflow: hidden;
    background: #f4f6f2;
}

.admin-login-main {
    padding: 0 !important;
    margin: 0;
    min-height: 100vh;
    min-height: 100dvh;
}

.admin-login {
    --al-green: #2d5a4b;
    --al-green-light: #3a7260;
    --al-accent: #c49a6c;
    --al-cafe: #9b6b55;
    --al-surface: #f4f6f2;
    --al-ink: #1a2b3c;
    --al-white: #ffffff;
    position: relative;
    display: grid;
    grid-template-columns: 1fr;
    min-height: 100vh;
    min-height: 100dvh;
    font-family: 'Open Sans', system-ui, sans-serif;
    color: var(--al-ink);
}

@media (min-width: 992px) {
    .admin-login {
        grid-template-columns: minmax(0, 1.05fr) minmax(380px, 0.95fr);
    }
}

/* —— Capas: bienvenida y carga —— */
.admin-login-welcome,
.admin-login-loading {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.25rem;
    background: linear-gradient(145deg, var(--al-green) 0%, #1e3d34 55%, #152a24 100%);
    color: #fff;
    transition: opacity 0.55s ease, visibility 0.55s ease;
}

.admin-login-welcome.is-hidden,
.admin-login-loading.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.admin-login-welcome__logo {
    height: 56px;
    width: auto;
    max-width: 240px;
    object-fit: contain;
    filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.25));
    animation: al-welcome-rise 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.admin-login-welcome__title {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(1.35rem, 3vw, 1.85rem);
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin: 0;
    animation: al-welcome-rise 0.9s 0.12s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.admin-login-welcome__sub {
    margin: 0;
    font-size: 0.95rem;
    opacity: 0.88;
    animation: al-welcome-rise 0.9s 0.22s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.admin-login-welcome__bar {
    width: min(220px, 60vw);
    height: 3px;
    border-radius: 99px;
    background: rgba(255, 255, 255, 0.2);
    overflow: hidden;
    animation: al-welcome-rise 0.9s 0.32s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.admin-login-welcome__bar span {
    display: block;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--al-accent), #e8c9a0);
    border-radius: inherit;
    animation: al-welcome-progress 1.1s 0.35s ease-out forwards;
}

.admin-login-loading__spinner {
    display: flex;
    gap: 0.45rem;
    align-items: flex-end;
    height: 48px;
}

.admin-login-loading__spinner span {
    width: 8px;
    border-radius: 4px 4px 2px 2px;
    background: linear-gradient(180deg, #e8c9a0, var(--al-accent));
    animation: al-corn-pulse 0.85s ease-in-out infinite;
}

.admin-login-loading__spinner span:nth-child(1) { height: 28px; animation-delay: 0s; }
.admin-login-loading__spinner span:nth-child(2) { height: 40px; animation-delay: 0.12s; }
.admin-login-loading__spinner span:nth-child(3) { height: 32px; animation-delay: 0.24s; }
.admin-login-loading__spinner span:nth-child(4) { height: 44px; animation-delay: 0.08s; }
.admin-login-loading__spinner span:nth-child(5) { height: 26px; animation-delay: 0.18s; }

.admin-login-loading__text {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    letter-spacing: 0.04em;
    margin: 0;
}

@keyframes al-welcome-rise {
    from { opacity: 0; transform: translateY(18px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes al-welcome-progress {
    to { width: 100%; }
}

@keyframes al-corn-pulse {
    0%, 100% { transform: scaleY(0.65); opacity: 0.65; }
    50% { transform: scaleY(1); opacity: 1; }
}

/* —— Panel visual (milpas SVG) —— */
.admin-login-visual {
    position: relative;
    min-height: 38vh;
    background: linear-gradient(165deg, #3a7260 0%, var(--al-green) 38%, #1a3d32 100%);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

@media (min-width: 992px) {
    .admin-login-visual {
        min-height: 100vh;
        min-height: 100dvh;
    }
}

.admin-login-visual__svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}

.admin-login-visual__copy {
    position: relative;
    z-index: 2;
    padding: clamp(1.5rem, 4vw, 2.75rem);
    color: #fff;
    background: linear-gradient(0deg, rgba(21, 42, 36, 0.92) 0%, rgba(21, 42, 36, 0.35) 55%, transparent 100%);
}

.admin-login-visual__eyebrow {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--al-accent);
    margin-bottom: 0.5rem;
}

.admin-login-visual__headline {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(1.5rem, 3.2vw, 2.15rem);
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 0.65rem;
    max-width: 22ch;
}

.admin-login-visual__text {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.55;
    max-width: 36ch;
    opacity: 0.9;
}

.admin-login-visual__chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.25rem;
}

.admin-login-visual__chip {
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.22);
    backdrop-filter: blur(6px);
}

/* SVG animations */
.al-sun {
    transform-origin: 620px 95px;
    animation: al-sun-glow 6s ease-in-out infinite;
}

.al-cloud {
    animation: al-cloud-drift 28s linear infinite;
}

.al-cloud--b {
    animation-duration: 36s;
    animation-delay: -8s;
}

.al-hill-far {
    animation: al-hill-breathe 10s ease-in-out infinite;
}

.al-milpa-row {
    animation: al-milpa-shift 14s ease-in-out infinite;
}

.al-milpa-row--2 { animation-delay: -4s; }
.al-milpa-row--3 { animation-delay: -7s; }

.al-corn {
    transform-origin: center bottom;
    animation: al-corn-sway 4.5s ease-in-out infinite;
}

.al-corn--2 { animation-delay: -1.2s; }
.al-corn--3 { animation-delay: -2.4s; }
.al-corn--4 { animation-delay: -0.6s; }
.al-corn--5 { animation-delay: -1.8s; }

.al-bird {
    animation: al-bird-fly 18s linear infinite;
}

@keyframes al-sun-glow {
    0%, 100% { opacity: 0.85; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.04); }
}

@keyframes al-cloud-drift {
    from { transform: translateX(-20px); }
    to { transform: translateX(40px); }
}

@keyframes al-hill-breathe {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

@keyframes al-milpa-shift {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(6px); }
}

@keyframes al-corn-sway {
    0%, 100% { transform: rotate(-2deg); }
    50% { transform: rotate(3deg); }
}

@keyframes al-bird-fly {
    0% { transform: translate(0, 0); opacity: 0; }
    8% { opacity: 0.7; }
    45% { transform: translate(120px, -18px); opacity: 0.7; }
    55% { opacity: 0; }
    100% { transform: translate(240px, -8px); opacity: 0; }
}

/* —— Panel formulario —— */
.admin-login-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(1.5rem, 4vw, 3rem);
    background: var(--al-surface);
    position: relative;
}

.admin-login-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--al-cafe);
}

.admin-login-card {
    width: 100%;
    max-width: 420px;
    animation: al-card-in 0.7s 0.15s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes al-card-in {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.admin-login-card__logo {
    height: 52px;
    width: auto;
    max-width: 220px;
    object-fit: contain;
    margin-bottom: 1.5rem;
}

.admin-login-card h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--al-green);
    margin: 0 0 0.35rem;
}

.admin-login-card__lead {
    color: #5a6a75;
    font-size: 0.92rem;
    line-height: 1.5;
    margin-bottom: 1.75rem;
}

.admin-login-card .form-label {
    font-weight: 600;
    font-size: 0.82rem;
    color: var(--al-ink);
}

.admin-login-card .form-control {
    border-radius: 0.65rem;
    border: 1px solid rgba(45, 90, 75, 0.28);
    padding: 0.65rem 0.9rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.admin-login-card .form-control:focus {
    border-color: var(--al-green);
    box-shadow: 0 0 0 0.2rem rgba(45, 90, 75, 0.18);
}

.admin-login-card .input-group .btn {
    border-radius: 0 0.65rem 0.65rem 0;
    border-color: rgba(45, 90, 75, 0.28);
    color: var(--al-green);
}

.admin-login-card .alert-danger {
    border-radius: 0.65rem;
    border: none;
    background: rgba(220, 53, 69, 0.1);
    color: #842029;
    font-size: 0.88rem;
}

.admin-login-submit {
    width: 100%;
    margin-top: 0.5rem;
    padding: 0.75rem 1.25rem;
    border: none;
    border-radius: 999px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.03em;
    color: #fff;
    background: linear-gradient(135deg, var(--al-green) 0%, var(--al-green-light) 100%);
    box-shadow: 0 8px 24px rgba(45, 90, 75, 0.35);
    transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
}

.admin-login-submit:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(45, 90, 75, 0.42);
    color: #fff;
}

.admin-login-submit:disabled {
    opacity: 0.75;
    cursor: wait;
}

.admin-login-back {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-top: 1.5rem;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--al-cafe);
    text-decoration: none;
    transition: color 0.2s;
}

.admin-login-back:hover {
    color: var(--al-green);
}

@media (prefers-reduced-motion: reduce) {
    .admin-login-welcome__logo,
    .admin-login-welcome__title,
    .admin-login-welcome__sub,
    .admin-login-welcome__bar,
    .admin-login-card,
    .al-sun,
    .al-cloud,
    .al-hill-far,
    .al-milpa-row,
    .al-corn,
    .al-bird {
        animation: none !important;
    }
    .admin-login-welcome__bar span {
        width: 100%;
    }
}