    /* ===== PALETA VINTAGE PRINCIPAL ===== */
    :root {
        --primary: #8B5E3C;        /* Café cálido retro */
        --primary-dark: #593825;   /* Café oscuro */
        --primary-light: #B08D6B;  /* Café claro */

        --accent: #C25454;         /* Rojo retro suave */
        --accent-dark: #A14343;    /* Rojo oscuro */
        --accent-soft: #ECDCC7;    /* Crema papel antiguo */

        --vibrant-1: #B44242;      /* Rojo quemado vibrante */
        --vibrant-2: #8B5E3C;      /* Café rojizo */
        --vibrant-3: #A28B5C;      /* Beige oliva retro */

        --bg-light: #F4EDE3;       /* Crema suave */
        --bg-light-alt: #E8D9C8;   /* Crema cálido */
        
        --text-dark: #2B1E14;      /* Café chocolate oscuro */
        --text-muted: #6A574B;     /* Café grisáceo suave */
        --text-light: #8A7866;     /* Café medio */

        --card-bg: #F8F3EB;        /* Crema muy claro */
        --white: #FFFFFF;
        --black: #1C1715;          /* Negro vintage suave */

        --shadow: 0 10px 25px rgba(75, 45, 20, 0.18);
        --shadow-hover: 0 15px 35px rgba(75, 45, 20, 0.28);
        --transition: all 0.3s ease;
    }

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        font-family: "Poppins", sans-serif;
    }

    body {
        min-height: 100vh;
        background: var(--bg-light);
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
        overflow: hidden;
        padding: 20px;
    }

    /* Fondo con elementos vintage */
    body::before {
        content: "";
        position: absolute;
        width: 300px;
        height: 300px;
        background: radial-gradient(circle, rgba(139, 94, 60, 0.08) 0%, transparent 70%);
        top: -100px;
        right: -100px;
        z-index: 0;
    }

    body::after {
        content: "";
        position: absolute;
        width: 200px;
        height: 200px;
        background: radial-gradient(circle, rgba(194, 84, 84, 0.06) 0%, transparent 70%);
        bottom: -80px;
        left: -80px;
        z-index: 0;
    }

    /* CONTENEDOR PRINCIPAL */
    .login-container {
        width: 1000px;
        max-width: 95%;
        height: 650px;
        max-height: 90vh;
        background: var(--white);
        border-radius: 25px;
        display: flex;
        overflow: hidden;
        box-shadow: var(--shadow);
        position: relative;
        z-index: 1;
    }

    /* PANEL IZQUIERDO - DISCO DE VINILO */
    .login-left {
        width: 45%;
        background: linear-gradient(135deg, 
            var(--primary-light) 0%, 
            var(--primary) 40%, 
            var(--primary-dark) 100%);
        position: relative;
        overflow: hidden;
        display: flex;
        align-items: center;
        justify-content: flex-end;
        padding-right: 60px;
    }

    /* MENÚ */
    .left-menu {
        position: relative;
        z-index: 3;
        display: flex;
        flex-direction: column;
        gap: 25px;
        text-align: right;
    }

    .menu-item {
        background: transparent;
        border: none;
        font-size: 1.3rem;
        color: rgba(255,255,255,0.7);
        font-weight: 600;
        cursor: pointer;
        padding: 12px 0;
        letter-spacing: 2px;
        transition: var(--transition);
        position: relative;
    }

    .menu-item.active {
        font-size: 1.6rem;
        color: var(--white);
        text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    }

    .menu-item:hover {
        color: var(--white);
        transform: translateX(-5px);
    }

    .menu-item.active::after {
        content: '';
        position: absolute;
        right: -10px;
        top: 50%;
        transform: translateY(-50%);
        width: 4px;
        height: 80%;
        background: var(--white);
        border-radius: 2px;
    }

    /* Contenedor del disco */
    .vinyl-container {
        position: absolute;
        left: -350px;
        top: 50%;
        transform: translateY(-50%);
        z-index: 2;
        transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    .vinyl-container.move-right {
        left: -300px;
    }

    /* Disco de vinilo grande - medio disco visible */
    .vinyl-large {
        width: 700px;
        height: 700px;
        border-radius: 50%;
        background: 
            radial-gradient(circle at 50% 50%, 
                #1a1a1a 0%, 
                #2a2a2a 8%, 
                #1a1a1a 15%,
                #000 40%,
                #1a1a1a 60%,
                #000 100%);
        border: 15px solid #2a2a2a;
        position: relative;
        box-shadow: 
            20px 0 40px rgba(0,0,0,0.6),
            inset 0 0 50px rgba(255,255,255,0.1);
        animation: rotate 25s linear infinite;
    }

    /* Detalles del disco */
    .vinyl-large::before {
        content: "";
        position: absolute;
        width: 70px;
        height: 70px;
        border-radius: 50%;
        background: 
            radial-gradient(circle at 30% 30%, 
                var(--accent) 0%, 
                var(--accent-dark) 100%);
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        z-index: 2;
        box-shadow: 
            0 0 15px rgba(194, 84, 84, 0.8),
            inset 0 0 10px rgba(255,255,255,0.2);
        border: 3px solid rgba(255,255,255,0.1);
    }

    /* Líneas del disco */
    .vinyl-large::after {
        content: "";
        position: absolute;
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background: 
            repeating-radial-gradient(
                circle at 50% 50%,
                transparent 0,
                transparent 8px,
                rgba(255,255,255,0.05) 8px,
                rgba(255,255,255,0.05) 9px
            );
        animation: rotate 20s linear infinite reverse;
    }

    /* Etiqueta del disco */
    .vinyl-details {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        z-index: 3;
        text-align: center;
    }

    .vinyl-label {
        background: var(--accent);
        width: 100px;
        height: 100px;
        border-radius: 50%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        color: white;
        font-weight: 600;
        font-size: 0.75rem;
        box-shadow: 
            0 0 20px rgba(194, 84, 84, 0.6),
            inset 0 0 10px rgba(255,255,255,0.2);
        border: 2px solid rgba(255,255,255,0.1);
        text-shadow: 0 1px 2px rgba(0,0,0,0.3);
    }

    .vinyl-label span:first-child {
        font-family: 'Playfair Display', serif;
        font-size: 0.9rem;
        font-weight: 700;
        margin-bottom: 2px;
    }

    .vinyl-label span:last-child {
        font-size: 0.6rem;
        opacity: 0.9;
    }

    /* Animación de rotación */
    @keyframes rotate {
        from {
            transform: rotate(0deg);
        }
        to {
            transform: rotate(360deg);
        }
    }

    /* PANEL DERECHO - FORMULARIO */
    .login-right {
        width: 55%;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 40px;
        position: relative;
        overflow: hidden;
    }

    .form-container {
        width: 100%;
        max-width: 400px;
        transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
    }

    .form-container:not(.hidden) {
        opacity: 1;
        transform: translateY(-50%) scale(1);
    }

    .form-container.hidden {
        opacity: 0;
        transform: translateY(-50%) scale(0.95);
        pointer-events: none;
    }

    /* Títulos */
    .login-title {
        font-family: 'Playfair Display', serif;
        font-size: 2.8rem;
        color: var(--primary);
        margin-bottom: 12px;
        text-align: center;
        letter-spacing: 1px;
        transition: var(--transition);
    }

    .login-subtitle {
        color: var(--text-muted);
        text-align: center;
        margin-bottom: 50px;
        font-size: 1.05rem;
        line-height: 1.5;
        transition: var(--transition);
    }

    /* FORMULARIO */
    .login-form {
        display: flex;
        flex-direction: column;
        gap: 30px;
    }

    /* INPUTS */
    .input-group {
        width: 100%;
        display: flex;
        align-items: center;
        border-bottom: 2px solid var(--accent-soft);
        padding-bottom: 12px;
        gap: 15px;
        transition: var(--transition);
        position: relative;
    }

    .input-group:focus-within {
        border-bottom-color: var(--accent);
        transform: translateY(-2px);
    }

    .input-group i {
        color: var(--accent);
        font-size: 1.2rem;
        width: 20px;
        transition: var(--transition);
    }

    .input-group:focus-within i {
        transform: scale(1.1);
    }

    .input-group input {
        border: none;
        outline: none;
        width: 100%;
        font-size: 1.05rem;
        background: transparent;
        color: var(--text-dark);
        padding: 5px 0;
        transition: var(--transition);
    }

    #country {
        width: 100%;
    }

    .input-group input::placeholder {
        color: var(--text-light);
        transition: var(--transition);
    }

    .input-group input:focus::placeholder {
        opacity: 0.5;
    }

    .input-group select {
        appearance: none;
        -webkit-appearance: none;
        -moz-appearance: none;
        border: none !important;
        outline: none !important;
        background: transparent;
        color: var(--text-dark);
        font-size: 1.05rem;
        font-family: "Poppins", sans-serif;
        color: var(--text-light);
    }

    .input-group select:focus,
    .input-group select:valid {
        color: var(--text-dark);
    }

    .input-group select option {
        background: var(--card-bg);          
        color: var(--text-dark);             
        padding: 12px;
        font-size: 1rem;
        border-bottom: 1px solid var(--bg-light-alt);
    }


    /* OPCIONES DEL FORMULARIO */
    .form-options {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-top: 10px;
    }

    .remember-me {
        display: flex;
        align-items: center;
        gap: 10px;
        cursor: pointer;
        color: var(--text-muted);
        font-size: 0.95rem;
        transition: var(--transition);
    }

    .remember-me:hover {
        color: var(--text-dark);
    }

    .remember-me input {
        display: none;
    }

    .checkmark {
        width: 20px;
        height: 20px;
        border: 2px solid var(--accent-soft);
        border-radius: 4px;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: var(--transition);
        position: relative;
    }

    .remember-me:hover .checkmark {
        border-color: var(--accent);
    }

    .remember-me input:checked + .checkmark {
        background: var(--accent);
        border-color: var(--accent);
    }

    .remember-me input:checked + .checkmark::after {
        content: "✓";
        color: white;
        font-size: 0.8rem;
        font-weight: bold;
    }

    .forgot {
        text-decoration: none;
        color: var(--accent);
        font-size: 0.95rem;
        transition: var(--transition);
        font-weight: 500;
    }

    .forgot:hover {
        color: var(--accent-dark);
        text-decoration: underline;
    }

    /* BOTÓN LOGIN */
    .btn-login {
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        color: white;
        border: none;
        padding: 16px;
        border-radius: 30px;
        font-weight: 600;
        cursor: pointer;
        margin-top: 10px;
        transition: var(--transition);
        font-size: 1.05rem;
        letter-spacing: 0.5px;
        box-shadow: 0 5px 20px rgba(139, 94, 60, 0.3);
        position: relative;
        overflow: hidden;
    }

    .btn-login:hover {
        transform: translateY(-3px);
        box-shadow: 0 8px 25px rgba(139, 94, 60, 0.4);
    }

    .btn-login:active {
        transform: translateY(-1px);
    }

    .btn-login::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
        transition: 0.6s;
    }

    .btn-login:hover::before {
        left: 100%;
    }

    /* MEJORAS PARA EL FORMULARIO DE REGISTRO */
    .register-form .login-title {
        font-size: 2.6rem;
    }

    .register-form .login-subtitle {
        margin-bottom: 40px;
    }

    .register-form form {
        display: flex;
        flex-direction: column;
        gap: 25px;
    }

    /* LINK DE REGISTRO */
    .register-link {
        text-align: center;
        margin-top: 35px;
        color: var(--text-muted);
        font-size: 0.95rem;
        line-height: 1.5;
        transition: var(--transition);
    }

    .register-link a {
        color: var(--accent);
        text-decoration: none;
        font-weight: 600;
        transition: var(--transition);
        position: relative;
    }

    .register-link a:hover {
        color: var(--accent-dark);
    }

    .register-link a::after {
        content: '';
        position: absolute;
        width: 0;
        height: 2px;
        bottom: -2px;
        left: 0;
        background: var(--accent);
        transition: var(--transition);
    }

    .register-link a:hover::after {
        width: 100%;
    }


    .back-home {
        position: absolute;
        bottom: 30px;
        left: 25px;
        background: var(--accent);
        color: white;
        padding: 12px 20px;
        border-radius: 25px;
        text-decoration: none;
        font-weight: 600;
        font-size: 0.95rem;
        box-shadow: 0 8px 25px rgba(0,0,0,0.15);
        transition: var(--transition);
        z-index: 10;
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .back-home:hover {
        background: var(--accent-dark);
        transform: translateY(-3px);
    }
