/* ========================================
   DESIGN TOKENS (Variables Semánticas)
   ======================================== */
:root {
    /* Colors - Dark Theme */
    --color-bg-primary: #0C0E1D;
    --color-bg-secondary: #1a1c2e;
    --color-bg-tertiary: #252840;
    --color-bg-card: rgba(26, 28, 46, 0.8);

    /* Brand Colors */
    --color-primary: #51FAAA;
    --color-primary-hover: #3dd891;
    --color-secondary: #616083;
    --color-accent: #FF81FF;
    --color-accent-secondary: #211F36;

    /* Text Colors */
    --color-text-primary: #FFFFFF;
    --color-text-secondary: rgba(255, 255, 255, 0.7);
    --color-text-muted: rgba(255, 255, 255, 0.5);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, #3dd891 100%);
    --gradient-accent: linear-gradient(135deg, var(--color-accent) 0%, #c76bc7 100%);
    --gradient-glow: radial-gradient(ellipse at center, rgba(81, 250, 170, 0.15) 0%, transparent 70%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px rgba(81, 250, 170, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-secondary);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn__icon {
    width: 1.25rem;
    height: 1.25rem;
}

.btn--primary {
    background: var(--gradient-primary);
    color: var(--color-bg-primary);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn--large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

.btn--large .btn__icon {
    width: 1.5rem;
    height: 1.5rem;
}

/* ========================================
   HEADER
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--spacing-md) 0;
    background: var(--color-bg-primary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.logo-img {
    width: 50px;
    height: 50px;
    object-fit: contain;
    border-radius: var(--radius-md);
}

.footer__logo-img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    border-radius: var(--radius-lg);
}

.header__nav {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-primary);
}

.header__cta {
    padding: var(--spacing-xs) var(--spacing-md);
}

.header__menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.header__menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: all var(--transition-fast);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--spacing-3xl) 0;
    padding-top: calc(var(--spacing-3xl) + 80px);
    overflow: hidden;
}

.hero__glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: var(--gradient-glow);
    pointer-events: none;
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-secondary);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.hero__title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.hero__title--highlight {
    display: block;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
}

.hero__testimonial {
    padding: var(--spacing-md);
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    margin-bottom: var(--spacing-xl);
}

.testimonial__text {
    font-style: italic;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.testimonial__author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.testimonial__avatar {
    width: 40px;
    height: 40px;
    background: var(--gradient-accent);
    border-radius: var(--radius-full);
    object-fit: cover;
}

.testimonial__name {
    display: block;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.testimonial__role {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* Hero Visual */
.hero__visual {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.hero__card {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    backdrop-filter: blur(20px);
    transition: transform var(--transition-base);
}

.hero__card:hover {
    transform: translateY(-5px);
}

.hero__card--stats {
    align-self: flex-end;
    text-align: center;
    background: linear-gradient(135deg, var(--color-bg-secondary), var(--color-bg-tertiary));
    border: 2px solid var(--color-primary);
}

.stat-value {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--color-primary);
}

.stat-change {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
}

.hero__card--main {
    max-width: 400px;
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.card-icon {
    color: var(--color-primary);
}

.hero__card--main h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xs);
}

.hero__card--main p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

/* ========================================
   BENEFITS SECTION
   ======================================== */
.benefits {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-secondary);
}

.benefits__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.benefit-card {
    padding: var(--spacing-xl);
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--transition-base);
}

.benefit-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.benefit-card__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: rgba(81, 250, 170, 0.1);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
}

.benefit-card__icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-primary);
}

.benefit-card__icon--accent {
    background: rgba(255, 129, 255, 0.1);
}

.benefit-card__icon--accent svg {
    color: var(--color-accent);
}

.benefit-card__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.benefit-card__text {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* ========================================
   PRODUCTS SECTION
   ======================================== */
.products {
    padding: var(--spacing-3xl) 0;
}

.products__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.product-card {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: rgba(81, 250, 170, 0.3);
    box-shadow: var(--shadow-md);
}

.product-card__image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--color-bg-tertiary), var(--color-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-card__placeholder {
    font-size: var(--font-size-4xl);
    opacity: 0.3;
}

.product-card__content {
    padding: var(--spacing-lg);
}

.product-card__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.product-card__description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.product-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.product-card__price {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary);
}

.product-card__cta {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    background: var(--color-bg-primary);
}

.footer__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.footer__logo-wrapper {
    width: 80px;
    height: 80px;
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.footer__logo-icon {
    font-size: 2.5rem;
    color: var(--color-primary);
}

.footer__brand-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.footer__address {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    max-width: 400px;
}

.footer__whatsapp-link {
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
    transition: color var(--transition-fast);
}

.footer__whatsapp-link:hover {
    color: var(--color-primary);
}

.footer__legal {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.footer__legal-link {
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    transition: opacity var(--transition-fast);
}

.footer__legal-link:hover {
    opacity: 0.8;
}

.footer__bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.footer__bottom p {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* ========================================
   FLOATING WHATSAPP BUTTON
   ======================================== */
.whatsapp-float {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
    transition: all var(--transition-base);
    z-index: 99;
    animation: float 3s ease-in-out infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
}

.whatsapp-float svg {
    width: 30px;
    height: 30px;
    color: var(--color-bg-primary);
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

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

/* Tablet */
@media (max-width: 1024px) {
    .hero__container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero__content {
        order: 1;
    }

    .hero__visual {
        order: 2;
        align-items: center;
    }

    .hero__subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero__testimonial {
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }

    .benefits__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .products__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer__content {
        grid-template-columns: 1fr 1fr;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
    }

    .header__nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--color-bg-secondary);
        padding: var(--spacing-md);
        gap: var(--spacing-md);
        text-align: center;
    }

    .header__nav.active {
        display: flex;
    }

    .header__cta {
        display: none;
    }

    .header__menu-toggle {
        display: flex;
    }

    .hero {
        padding-top: calc(var(--spacing-2xl) + 80px);
    }

    .hero__card--stats {
        align-self: center;
    }

    .benefits__grid {
        grid-template-columns: 1fr;
    }

    .products__grid {
        grid-template-columns: 1fr;
    }

    .footer__content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer__brand {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    :root {
        --font-size-5xl: 2rem;
        --container-padding: 1rem;
    }

    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: var(--spacing-md);
        right: var(--spacing-md);
    }

    .whatsapp-float svg {
        width: 24px;
        height: 24px;
    }
}

/* ========================================
   LOADING & EMPTY STATES
   ======================================== */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

.loading::after {
    content: '';
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-bg-tertiary);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--color-text-muted);
}

.error-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--color-accent);
}

/* ========================================
   LEGAL PAGES (Privacy, Terms)
   ======================================== */
.legal-page {
    padding-top: calc(100px + var(--spacing-2xl));
    padding-bottom: var(--spacing-3xl);
    min-height: 100vh;
}

.legal-content {
    max-width: 800px;
    margin: 0 auto;
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
}

.legal-content h1 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
}

.legal-content h2 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.legal-content p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.legal-content ul {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.legal-content li {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
    list-style: disc;
}

.legal-content a {
    color: var(--color-primary);
    transition: opacity var(--transition-fast);
}

.legal-content a:hover {
    opacity: 0.8;
}

.legal-back {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.legal-back .btn {
    color: #0C0E1D;
    font-weight: 600;
}

.legal-back .btn:hover {
    color: #0C0E1D;
}

@media (max-width: 768px) {
    .legal-content {
        padding: var(--spacing-lg);
    }

    .legal-content h1 {
        font-size: var(--font-size-2xl);
    }
}