:root {
    --nav-height: 75px;
    --nav-height-mobile: 70px;
    --nav-bg: linear-gradient(180deg, rgba(15, 23, 42, 0.98), rgba(15, 23, 42, 0.96));
    --nav-border: rgba(148, 163, 184, 0.1);
    --nav-text: #FFFFFF;
    --nav-text-hover: #60A5FA;
    --nav-button-primary: linear-gradient(135deg, #3B82F6, #2563EB);
    --nav-button-primary-hover: linear-gradient(135deg, #2563EB, #1D4ED8);
    --nav-button-dark: linear-gradient(135deg, #1E293B, #0F172A);
    --nav-button-dark-hover: linear-gradient(135deg, #0F172A, #020617);
    --nav-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    --nav-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset y configuración base */
.premium-nav *,
.premium-nav *::before,
.premium-nav *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    padding-top: var(--nav-height);
    font-family: 'Plus Jakarta Sans', sans-serif;
}

.premium-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    z-index: 1000;
}

.premium-nav__bg {
    position: absolute;
    inset: 0;
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--nav-border);
    z-index: -1;
}

.premium-nav__container {
    max-width: 1400px;
    height: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo y marca */
.premium-nav__brand {
    display: flex;
    align-items: center;
    gap: 2rem;
    height: 100%;
}

.premium-nav__logo-link {
    display: flex;
    align-items: center;
    height: 100%;
    padding: 1rem 0;
}

/* Media query opcional para escritorio */
@media (min-width: 768px) {
    .premium-nav__menu {
        display: flex !important;
    }
}


.premium-nav__logo {
    height: calc(var(--nav-height) - 30px);
    width: auto;
    object-fit: contain;
    transition: var(--nav-transition);
}

/* Menú de navegación */
.premium-nav__menu {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.premium-nav__list {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.premium-nav__item {
    display: flex;
    align-items: center;
}

.premium-nav__link:hover {
    color: white;
    text-decoration: none;
}

/* Enlaces */
.premium-nav__link {
    position: relative;
    padding: 0.75rem 1.25rem;
    color: var(--nav-text);
    text-decoration: none;
    font-weight: 500;
    transition: var(--nav-transition);
}

.premium-nav__link span {
    position: relative;
    display: block;
}

.premium-nav__link span::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -4px;
    height: 2px;
    background: var(--nav-text-hover);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.premium-nav__link:hover {
    color: var(--nav-text-hover);
}

.premium-nav__link:hover span::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Botones */
.premium-nav__button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.5rem;
    margin: 0 0.5rem;
    border-radius: 12px;
    color: var(--nav-text);
    text-decoration: none;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: var(--nav-transition);
    position: relative;
    overflow: hidden;
}

.premium-nav__button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(-100%) rotate(45deg);
    transition: var(--nav-transition);
}

.premium-nav__button:hover {
    color: white;
    text-decoration: none;
}

.premium-nav__button:hover::before {
    transform: translateX(100%) rotate(45deg);
}

.premium-nav__button--verify {
    background: var(--nav-button-primary);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.premium-nav__button--verify:hover {
    background: var(--nav-button-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.premium-nav__button--admin,
.premium-nav__button--user {
    background: var(--nav-button-dark);
    box-shadow: 0 4px 15px rgba(15, 23, 42, 0.3);
}

.premium-nav__button--admin:hover,
.premium-nav__button--user:hover {
    background: var(--nav-button-dark-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(15, 23, 42, 0.4);
}

.premium-nav__button--register {
    background: var(--nav-button-primary);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.premium-nav__button--register:hover {
    background: var(--nav-button-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

/* Botón de menú móvil */
.premium-nav__toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.premium-nav__toggle span {
    width: 100%;
    height: 2px;
    background-color: var(--nav-text);
    transition: var(--nav-transition);
    transform-origin: left;
}

/* Responsive */
@media (max-width: 1024px) {
    .premium-nav {
        height: var(--nav-height-mobile);
    }

    .premium-nav__container {
        padding: 0 1.5rem;
    }

    .premium-nav__logo {
        height: calc(var(--nav-height-mobile) - 20px);
    }

    .premium-nav__toggle {
        display: flex;
    }

    .premium-nav__menu {
        position: fixed;
        top: var(--nav-height-mobile);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--nav-bg);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        padding: 2rem;
        transform: translateX(-100%);
        transition: var(--nav-transition);
    }

    .premium-nav__menu.show {
        transform: translateX(0);
    }

    .premium-nav__list {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
        width: 100%;
    }

    .premium-nav__link {
        width: 100%;
        text-align: center;
        padding: 1rem;
    }

    .premium-nav__button {
        width: 100%;
        justify-content: center;
        margin: 0.5rem 0;
    }
}

@media (max-width: 640px) {
    .premium-nav__container {
        padding: 0 1rem;
    }
}

/* Animaciones y efectos avanzados solo con CSS */
.premium-nav__button svg {
    transition: var(--nav-transition);
}

.premium-nav__button:hover svg {
    transform: rotate(90deg);
}

@media (prefers-reduced-motion: no-preference) {
    .premium-nav {
        animation: navSlideDown 0.5s ease-out;
    }

    @keyframes navSlideDown {
        from {
            opacity: 0;
            transform: translateY(-20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
}