/* ===== Estilos generales ===== */
body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #f0f4ff 0%, #e8edf5 100%);
    min-height: 100vh;
}

/* ===== Navbar ===== */
.bg-gradient-primary {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.logo-grande {
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-title {
    color: white;
    font-weight: 700;
    font-size: 1.4rem;
    line-height: 1.2;
}

.brand-subtitle {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.nav-link {
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9) !important;
    transition: all 0.3s;
}

.nav-link:hover {
    color: #fff !important;
    transform: translateY(-2px);
}

/* ===== Tarjetas ===== */
.card-elegante {
    border-radius: 24px !important;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.card-elegante .card-header {
    background: transparent;
}

.divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #06b6d4);
    border-radius: 4px;
    margin: 15px auto;
}

/* ===== Inputs ===== */
.input-elegante {
    border-radius: 12px;
    border: 1.5px solid #e2e8f0;
    padding: 12px 16px;
    font-size: 15px;
    background-color: #f9fafb;
    transition: all 0.3s;
}

.input-elegante:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
    background-color: #fff;
}

.form-label {
    color: #334155;
    font-size: 0.95rem;
}

/* ===== Botones ===== */
.btn-elegante {
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    border: none;
    border-radius: 14px;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
    transition: all 0.3s;
}

.btn-elegante:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 25px rgba(37, 99, 235, 0.4);
}

.btn-outline-secondary, .btn-outline-success {
    border-radius: 12px;
    font-weight: 500;
}

/* ===== Login / Registro ===== */
.card-login {
    border-radius: 24px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: none;
}

.login-logo {
    height: 90px !important;
    border-radius: 16px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
}