/* ==========================================================================
   LOGIN — SISTEMA DE DISEÑO MONOCROMO & MODERNO
   ========================================================================== */

:root {
    --login-bg: #f5f5f6;
    --login-surface: #ffffff;
    --login-surface-2: #efeff1;
    --login-border: #e4e4e7;
    --login-text: #111827;
    --login-muted: #6b7280;
    --login-brand: #111827;
    --login-brand-hover: #1f2937;
    --login-sidebar-bg: #0f1114;
    --login-sidebar-text: #f3f4f6;
    --login-sidebar-muted: #9ca3af;
    --login-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.12);
}

@media (prefers-color-scheme: dark) {
    :root {
        --login-bg: #0b0d10;
        --login-surface: #171a1e;
        --login-surface-2: #20242a;
        --login-border: #2a2f36;
        --login-text: #eef0f2;
        --login-muted: #9199a5;
        --login-brand: #ffffff;
        --login-brand-hover: #e5e7eb;
        --login-sidebar-bg: #121519;
        --login-sidebar-text: #f3f4f6;
        --login-sidebar-muted: #9ca3af;
        --login-shadow: 0 24px 50px -15px rgba(0, 0, 0, 0.6);
    }
}

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

body {
    background-color: var(--login-bg);
    color: var(--login-text);
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 24px 16px;
    -webkit-font-smoothing: antialiased;
}

.login-container {
    background-color: var(--login-surface);
    border-radius: 20px;
    box-shadow: var(--login-shadow);
    overflow: hidden;
    width: 100%;
    max-width: 960px;
    display: flex;
    flex-direction: row;
    border: 1px solid var(--login-border);
}

/* Lado informativo institucional */
.welcome-section {
    background-color: var(--login-sidebar-bg);
    color: var(--login-sidebar-text);
    padding: 56px 44px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 44%;
    position: relative;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.banner-logo-box {
    background: #ffffff;
    border-radius: 14px;
    padding: 14px 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
    margin-bottom: 28px;
    max-width: 280px;
}

.banner-logo-box img {
    width: 100%;
    height: auto;
    max-height: 54px;
    object-fit: contain;
}

.welcome-title {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-size: 1.55rem;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
    color: #ffffff;
}

.welcome-text {
    line-height: 1.6;
    margin-bottom: 24px;
    font-size: 0.92rem;
    color: var(--login-sidebar-muted);
}

.welcome-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #93c5fd;
    background: rgba(59, 130, 246, 0.12);
    border: 1px solid rgba(59, 130, 246, 0.25);
    padding: 6px 14px;
    border-radius: 999px;
    width: fit-content;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--login-sidebar-muted);
    font-size: 0.88rem;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.2s ease, transform 0.2s ease;
    margin-top: 36px;
    width: fit-content;
}

.btn-back:hover {
    color: #ffffff;
    transform: translateX(-3px);
}

/* Lado del formulario */
.form-section {
    padding: 56px 48px;
    width: 56%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background-color: var(--login-surface);
}

.form-header {
    margin-bottom: 28px;
}

.form-badge {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--login-muted);
    margin-bottom: 6px;
}

.form-title {
    color: var(--login-text);
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-weight: 700;
    font-size: 1.45rem;
    letter-spacing: -0.02em;
    margin: 0 0 6px 0;
}

.form-subtitle {
    font-size: 0.88rem;
    color: var(--login-muted);
    margin: 0;
}

.form-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--login-text);
    margin-bottom: 7px;
}

.input-group {
    border-radius: 10px;
    overflow: hidden;
    transition: box-shadow 0.2s, border-color 0.2s;
}

.input-group-text {
    background-color: var(--login-surface-2);
    border: 1px solid var(--login-border);
    border-right: none;
    color: var(--login-muted);
    padding: 11px 14px;
    font-size: 0.95rem;
}

.form-control {
    background-color: var(--login-surface-2);
    border: 1px solid var(--login-border);
    color: var(--login-text);
    padding: 11px 14px;
    font-size: 0.92rem;
    transition: border-color 0.18s, background-color 0.18s;
}

.form-control:focus {
    background-color: var(--login-surface);
    border-color: var(--login-text);
    box-shadow: 0 0 0 2px rgba(17, 24, 39, 0.08);
    color: var(--login-text);
}

.btn-toggle-eye {
    background-color: var(--login-surface-2);
    border: 1px solid var(--login-border);
    border-left: none;
    color: var(--login-muted);
    cursor: pointer;
    padding: 0 14px;
    transition: color 0.15s, background-color 0.15s;
}

.btn-toggle-eye:hover {
    color: var(--login-text);
    background-color: var(--login-surface-2);
}

.btn-login {
    background-color: var(--login-brand);
    color: #ffffff !important;
    border: 1px solid transparent;
    padding: 13px;
    font-weight: 600;
    font-size: 0.94rem;
    border-radius: 10px;
    transition: all 0.2s ease;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

@media (prefers-color-scheme: dark) {
    .btn-login {
        color: #111827 !important;
    }
}

.btn-login:hover {
    background-color: var(--login-brand-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}

/* Responsive */
@media (max-width: 991px) {
    .login-container {
        flex-direction: column;
        max-width: 480px;
    }

    .welcome-section,
    .form-section {
        width: 100%;
        padding: 36px 28px;
    }

    .welcome-section {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
}