/* ── Reset & Variables ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
    --primary: #1a73e8;
    --primary-dark: #0116bc;
    --radius: 14px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0,0,0,.1);
    --shadow-lg: 0 8px 40px rgba(0,0,0,.15);
    --text: #1e293b;
    --text-muted: #64748b;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    min-height: 100vh;
    background: url('../images/login.jpeg') center/cover no-repeat fixed;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: rgba(1, 22, 188, 0.35);
    z-index: 0;
}

.site-header {
    width: 100%;
    max-width: 720px;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    border-radius: var(--radius) var(--radius) 0 0;
    padding: 1.25rem 1.75rem;
    display: flex;
    align-items: center;
    gap: 1.1rem;
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-lg);
}
.site-header img { height: 52px; object-fit: contain; flex-shrink: 0; }
.site-header-text h1 { color: #fff; font-size: 1.25rem; font-weight: 700; margin-bottom: .2rem; }
.site-header-text p  { color: rgba(255,255,255,.8); font-size: .88rem; }

.card {
    width: 100%;
    max-width: 720px;
    background: #fff;
    border-radius: 0 0 var(--radius) var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 2rem 2.25rem 2.5rem;
    position: relative;
    z-index: 1;
}

.card-title {
    display: flex;
    align-items: center;
    gap: .6rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #e2e8f0;
}
.card-title i { color: var(--primary); }

.form-group { margin-bottom: 1.25rem; }
.form-group label {
    display: flex;
    align-items: center;
    gap: .4rem;
    font-size: .85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .4px;
    margin-bottom: .45rem;
}
.form-group label i { color: var(--primary); font-size: .9em; }

.input-group { display: flex; gap: .65rem; }
.input-group input { flex: 1; }

input[type="text"], select {
    width: 100%;
    padding: .7rem 1rem;
    border: 1.5px solid #ddd;
    border-radius: var(--radius-sm);
    font-size: .95rem;
    font-family: inherit;
    background: #fafafa;
    color: var(--text);
    transition: border-color .2s, box-shadow .2s;
    appearance: none;
}
input[type="text"]:focus, select:focus {
    border-color: var(--primary);
    outline: none;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(26,115,232,.1);
}
input::placeholder { color: #94a3b8; }

.btn {
    padding: .7rem 1.35rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: .92rem;
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    transition: all .2s;
    white-space: nowrap;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: #fff;
    box-shadow: 0 4px 12px rgba(26,115,232,.25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(26,115,232,.35); }
.btn-success { background: linear-gradient(135deg, #1a7e34, #28a745); color: #fff; }
.btn-success:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(40,167,69,.35); }
.btn-danger  { background: linear-gradient(135deg, #a71d2a, #dc3545); color: #fff; }
.btn-danger:hover  { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(220,53,69,.35); }
.btn-block { width: 100%; justify-content: center; padding: .85rem; font-size: 1rem; margin-top: .5rem; }
.btn:disabled { opacity: .65; cursor: not-allowed; transform: none !important; }

.info-box {
    background: linear-gradient(135deg, #e8f0fe, #dce8fd);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-sm);
    padding: .85rem 1.1rem;
    font-size: .92rem;
    color: #1558b0;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: .55rem;
}
.info-box i { font-size: 1.1em; }

.message {
    padding: .85rem 1.1rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    font-size: .9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: .5rem;
    animation: fadeIn .3s ease;
}
@keyframes fadeIn { from{opacity:0;transform:translateY(-6px)} to{opacity:1;transform:translateY(0)} }
.message.success { background: #e8f5e9; border-left: 4px solid #28a745; color: #1e7e34; }
.message.error   { background: #ffebee; border-left: 4px solid #dc3545; color: #c62828; }
.message.warning { background: #fff8e1; border-left: 4px solid #ffc107; color: #856404; }

.divider { height: 1.5px; background: #e2e8f0; margin: 1.25rem 0; }

/* Link al dashboard */
.dashboard-link {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: .82rem;
    color: rgba(255,255,255,.75);
    text-decoration: none;
    margin-left: auto;
    transition: color .2s;
}
.dashboard-link:hover { color: #fff; }

@media(max-width: 540px) {
    body { padding: 0; }
    .site-header { border-radius: 0; flex-wrap: wrap; }
    .card { border-radius: 0; padding: 1.5rem 1.25rem; }
    .input-group { flex-direction: column; }
}