:root {
    --primary: #1b5e20;
    --primary-dark: #0d3b10;
    --primary-light: #2e7d32;
    --secondary: #66bb6a;
    --bg: #f4f9f5;
    --text: #1b1b1b;
    --text-muted: #5f6b5f;
    --card: #ffffff;
    --border: #c8e6c9;
    --success: #2e7d32;
    --danger: #c62828;
    --shadow: rgba(27, 94, 32, 0.12);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* LOGIN PAGINA INDEPENDIENTE */
.admin-login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background:
        radial-gradient(circle at 20% 30%, rgba(46, 125, 50, 0.25) 0%, transparent 35%),
        radial-gradient(circle at 80% 70%, rgba(129, 199, 132, 0.2) 0%, transparent 35%),
        linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
}

.admin-login-wrapper {
    background: var(--card);
    padding: 2.5rem;
    border-radius: 18px;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.25);
    text-align: center;
    width: 380px;
    border-top: 5px solid var(--primary-light);
}

.admin-login-wrapper .login-brand-img {
    height: 150px;
    width: auto;
    display: block;
    margin: 0 auto 1rem;
}

.admin-login-wrapper h2 {
    margin-bottom: 1.5rem;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 1.1rem;
}

.admin-login-form {
    display: grid;
    gap: 1rem;
    margin-bottom: 1rem;
}

.admin-login-form .campo {
    text-align: left;
}

.admin-login-form .campo label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 600;
    color: var(--text);
}

.admin-login-form input {
    display: block;
    width: 100%;
    padding: 0.85rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--bg);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.admin-login-form input:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.15);
}

.admin-login-form .btn-primary,
.admin-login-form button[type="submit"] {
    width: 100%;
    padding: 0.85rem;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(46, 125, 50, 0.25);
    transition: transform 0.15s, background 0.2s;
}

.admin-login-form .btn-primary:hover,
.admin-login-form button[type="submit"]:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    transform: translateY(-1px);
}

.login-error,
.error {
    color: var(--danger);
    font-size: 0.9rem;
    margin-top: 0.5rem;
    min-height: 1.2rem;
}

.login-volver {
    display: block;
    margin-top: 1rem;
    color: var(--primary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 600;
}

.login-volver:hover {
    text-decoration: underline;
    color: var(--primary-dark);
}