/* =========================================
   RESET Y BASE
   ========================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --negro: #0a0a0a;
    --negro-claro: #151515;
    --gris: #2a2a2a;
    --blanco: #ffffff;
    --blanco-suave: #e0e0e0;
    --dorado: #d4af37;
    --verde: #25d366;
    --rojo: #e74c3c;
}

body {
    background: var(--negro);
    color: var(--blanco);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

/* =========================================
   LOGIN
   ========================================= */
.login-page {
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
}

.login-container {
    width: 100%;
    max-width: 450px;
}

.login-card {
    background: var(--negro-claro);
    border: 1px solid var(--gris);
    border-radius: 16px;
    padding: 45px 40px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
    text-align: center;
}

.login-logo {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--dorado), #b8932e);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 1.8rem;
    color: #000;
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.3);
}

.login-card h1 {
    font-size: 1.5rem;
    margin-bottom: 8px;
    color: var(--blanco);
    letter-spacing: 1px;
}

.login-subtitle {
    color: var(--blanco-suave);
    font-size: 0.85rem;
    opacity: 0.7;
    margin-bottom: 30px;
}

/* Formulario */
.login-form {
    text-align: left;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    color: var(--blanco-suave);
    font-size: 0.85rem;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group label i {
    color: var(--dorado);
    margin-right: 6px;
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    background: var(--negro);
    border: 1px solid var(--gris);
    border-radius: 8px;
    color: var(--blanco);
    font-size: 0.95rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--dorado);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.15);
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

/* Botón de login */
.btn-login {
    width: 100%;
    padding: 15px;
    background: var(--dorado);
    color: #000;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.btn-login:hover:not(:disabled) {
    background: var(--blanco);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(212, 175, 55, 0.4);
}

.btn-login:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Error */
.login-error {
    color: var(--rojo);
    font-size: 0.85rem;
    margin-top: 15px;
    text-align: center;
    min-height: 20px;
}

/* Link de volver */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--blanco-suave);
    text-decoration: none;
    font-size: 0.85rem;
    margin-top: 30px;
    transition: color 0.3s ease;
}

.back-link:hover {
    color: var(--dorado);
}