/* ===== LOGIN ESTABLE Y RESPONSIVO ===== */

:root {
    --primary-gold: #d4af37;
    --dark-gold: #b8962e;
    --bg-dark: #0b0b0f;
    --card-dark: #14141c;
    --border-dark: #1f1f2b;
    --text-light: #ffffff;
    --text-muted: #9a9a9a;
    --danger: #dc2626;
    --danger-light: #3a1515;
}

/* ===== RESET ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    height: 100%;
}

body {
    min-height: 100vh;
    width: 100%;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--bg-dark);
    color: var(--text-light);

    /* CENTRADO REAL */
    display: flex;
    justify-content: center;
    align-items: center;
}

/* ===== CONTENEDOR ===== */
.login-container {
    width: 100%;
    padding: 24px;

    display: flex;
    justify-content: center;
    align-items: center;
}

/* ===== TARJETA ===== */
.login-card {
    width: 100%;
    max-width: 420px;

    background: var(--card-dark);
    border: 1px solid var(--border-dark);
    border-radius: 16px;

    padding: 40px 32px;
    text-align: center;

    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
}

/* ===== TITULOS ===== */
.login-card h1 {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--primary-gold);
    margin-bottom: 6px;
}

.login-card h1 span {
    color: var(--text-light);
    font-weight: 300;
}

.subtitle {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 30px;
}

.login-card h2 {
    font-size: 1.4rem;
    margin-bottom: 24px;
    font-weight: 600;
}

/* ===== ALERTAS ===== */
.alert {
    background: var(--danger-light);
    border-left: 4px solid var(--danger);
    color: #ff9a9a;
    padding: 14px 16px;
    border-radius: 10px;
    margin-bottom: 22px;
    text-align: left;
    font-size: 0.95rem;
}

/* ===== FORM ===== */
form {
    width: 100%;
}

.form-group {
    margin-bottom: 18px;
}

/* INPUTS — 16px previene zoom iOS */
input[type="email"],
input[type="password"] {
    width: 100%;
    padding: 16px 18px;

    background: #0f0f16;
    border: 2px solid var(--border-dark);
    border-radius: 12px;

    color: var(--text-light);
    font-size: 16px;
    line-height: 1.4;

    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input::placeholder {
    color: var(--text-muted);
}

input:focus {
    outline: none;
    border-color: var(--primary-gold);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.2);
}

/* ===== BOTÓN ===== */
.btn {
    width: 100%;
    padding: 16px;

    border: none;
    border-radius: 12px;

    background: linear-gradient(135deg, var(--primary-gold), var(--dark-gold));
    color: var(--bg-dark);

    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;

    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 25px rgba(212, 175, 55, 0.35);
}

.btn:active {
    transform: translateY(0);
}

/* ===== RESPONSIVE ===== */

/* Tablets */
@media (max-width: 768px) {
    .login-card {
        padding: 36px 26px;
    }

    .login-card h1 {
        font-size: 2.2rem;
    }
}

/* Móviles */
@media (max-width: 480px) {
    body {
        align-items: center;
    }

    .login-container {
        padding: 16px;
    }

    .login-card {
        padding: 30px 22px;
        border-radius: 14px;
    }

    .login-card h1 {
        font-size: 2rem;
    }

    .login-card h2 {
        font-size: 1.25rem;
    }
}

/* Landscape móvil */
@media (max-height: 500px) {
    body {
        align-items: flex-start;
        padding-top: 20px;
    }

    .login-card {
        padding: 24px 24px;
    }
}

/* ===== SELECTOR DE ROL ===== */
.role-selector {
    display: flex;
    gap: 12px;
    margin-bottom: 28px;
}

.role-btn {
    flex: 1;
    padding: 14px 10px;

    background: #0f0f16;
    border: 2px solid var(--border-dark);
    border-radius: 12px;

    color: var(--text-light);
    font-weight: 600;
    cursor: pointer;

    transition: all 0.2s ease;
}

.role-btn:hover {
    border-color: var(--primary-gold);
}

.role-btn.active {
    background: linear-gradient(135deg, var(--primary-gold), var(--dark-gold));
    color: var(--bg-dark);
    border-color: transparent;
}