:root {
    --bg: #faf9f7;
    --card: #ffffff;
    --accent: #2b8aef;
    --muted: #6b7280;
    --text: #0f172a;
    --radius: 12px;
    --shadow: 0 10px 25px rgba(15, 23, 42, 0.08);
}

* {
    box-sizing: border-box;
    font-family: Inter, system-ui, 'Segoe UI', Roboto, Arial;
}

body {
    background: var(--bg);
    margin: 0;
    color: var(--text);
    min-height: 100vh;
}

/* Navbar */
.navbar {
    background: var(--accent);
    color: #fff;
    padding: 1rem 2rem;
    text-align: center;
    font-weight: 600;
    font-size: 1.2rem;
}

.brand span {
    color: #e0f2ff;
}

/* Contenedor principal */
.main-container {
    display: flex;
    justify-content: center;
    padding: 3rem 1rem;
}

.login-container {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    text-align: center;
}

h2 {
    color: var(--accent);
    margin-bottom: 1.5rem;
}

/* Campos */
form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

label {
    text-align: left;
    color: var(--muted);
    font-size: 0.95rem;
}

input {
    margin-top: 0.4rem;
    padding: 0.6rem 0.8rem;
    border-radius: 8px;
    border: 1px solid #e2e2e8;
    font-size: 1rem;
    width: 100%;
}

input:focus {
    border-color: var(--accent);
    outline: none;
    box-shadow: 0 0 0 3px rgba(43, 138, 239, 0.15);
}

/* Botones */
.form-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 1rem;
}

.btn {
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    border: 1px solid transparent;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn.primary {
    background: var(--accent);
    color: #fff;
}

.btn.primary:hover {
    background: #1e6bd8;
}

.btn.outline {
    border-color: var(--accent);
    color: var(--accent);
    background: transparent;
}

.btn.outline:hover {
    background: var(--accent);
    color: #fff;
}

/* Errores */
.error-msg {
    color: #b91c1c;
    background: #fee2e2;
    padding: 0.5rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}