/* ==========================================================================
   OPENFRIO - LANDING PAGE PREMIUM
   Stylesheet - Refrigeração Profissional
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS VARIABLES
   -------------------------------------------------------------------------- */
:root {
    /* Blue Palette */
    --blue-900: #031B2E;
    --blue-800: #063B5C;
    --blue-700: #086A8F;
    --blue-600: #0BA4C7;
    --blue-100: #EAF8FC;
    --white: #FFFFFF;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-700) 50%, var(--blue-600) 100%);
    --gradient-hero: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-800) 60%, var(--blue-700) 100%);
    --gradient-cta: linear-gradient(135deg, var(--blue-800) 0%, var(--blue-600) 100%);
    --gradient-light: linear-gradient(180deg, var(--blue-100) 0%, var(--white) 100%);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 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: 3rem;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-slider: 0 25px 50px -12px rgba(3, 27, 46, 0.4);

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

    /* Z-Index */
    --z-header: 100;
    --z-slider: 10;
    --z-whatsapp: 90;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--blue-900);
    background-color: var(--white);
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-base);
}

ul {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
}

/* --------------------------------------------------------------------------
   UTILITIES
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.text-accent {
    color: var(--blue-600);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--space-md);
    color: var(--blue-900);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    text-align: center;
    color: var(--blue-800);
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
    opacity: 0.85;
}

/* --------------------------------------------------------------------------
   BUTTONS
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-weight: 600;
    font-size: var(--font-size-sm);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    white-space: nowrap;
    cursor: pointer;
    border: 2px solid transparent;
}

.btn--primary {
    background: var(--gradient-cta);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(10, 164, 199, 0.4);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(10, 164, 199, 0.5);
}

.btn--whatsapp {
    background: #25D366;
    color: var(--white);
    box-shadow: 0 4px 14px rgba(37, 211, 102, 0.4);
}

.btn--whatsapp:hover {
    background: #20BD5A;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

.btn--orange {
    background: linear-gradient(135deg, #FF6B2B 0%, #FF8F4C 100%);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(255, 107, 43, 0.4);
}

.btn--orange:hover {
    background: linear-gradient(135deg, #E55A1F 0%, #FF7A33 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 43, 0.5);
}

.btn--outline {
    background: transparent;
    color: var(--blue-700);
    border-color: var(--blue-700);
}

.btn--outline:hover {
    background: var(--blue-700);
    color: var(--white);
}

.btn--lg {
    padding: 1rem 2rem;
    font-size: var(--font-size-base);
}

.btn--sm {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-xs);
}

.btn--full {
    width: 100%;
}

/* --------------------------------------------------------------------------
   HEADER
   -------------------------------------------------------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-header);
    background: rgba(3, 27, 46, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-base);
}

.header--scrolled {
    background: rgba(3, 27, 46, 0.98);
    box-shadow: var(--shadow-lg);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.header__logo img {
    height: 40px;
    width: auto;
}

.header__menu {
    display: flex;
    gap: var(--space-xl);
}

.header__menu a {
    color: rgba(255, 255, 255, 0.85);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: color var(--transition-base);
}

.header__menu a:hover {
    color: var(--blue-600);
}

.header__cta {
    font-size: var(--font-size-sm);
    padding: 0.625rem 1.25rem;
}

.header__hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.header__hamburger span {
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.header__hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.header__hamburger.active span:nth-child(2) {
    opacity: 0;
}

.header__hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* --------------------------------------------------------------------------
   HERO
   -------------------------------------------------------------------------- */
.hero {
    background: var(--gradient-hero);
    padding: 120px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%230BA4C7' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero__content {
    color: var(--white);
}

.hero__title {
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.hero__subtitle {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    opacity: 0.9;
    margin-bottom: var(--space-2xl);
    max-width: 520px;
}

.hero__ctas {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.hero__trust {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md) var(--space-xl);
    font-size: var(--font-size-sm);
    opacity: 0.85;
}

.hero__trust span {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

/* --------------------------------------------------------------------------
   SLIDER
   -------------------------------------------------------------------------- */
.hero__slider {
    position: relative;
}

.slider {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-slider);
    background: var(--blue-900);
}

.slider__track {
    position: relative;
    aspect-ratio: 1/1;
}

.slider__slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.slider__slide--active {
    opacity: 1;
}

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

.slider__overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-3xl) var(--space-xl) var(--space-xl);
    background: linear-gradient(to top, rgba(3, 27, 46, 0.85) 0%, transparent 100%);
    text-align: center;
}

.slider__label {
    display: inline-block;
    background: linear-gradient(135deg, #FF6B2B 0%, #FF8F4C 100%);
    color: var(--white);
    font-size: var(--font-size-sm);
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-align: center;
    padding: 10px 24px;
    border-radius: var(--radius-full);
    box-shadow: 0 4px 15px rgba(255, 107, 43, 0.5);
}

.slider__arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue-900);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    z-index: 5;
}

.slider__arrow:hover {
    background: var(--white);
    transform: translateY(-50%) scale(1.05);
}

.slider__arrow--prev {
    left: 16px;
}

.slider__arrow--next {
    right: 16px;
}

.slider__dots {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 5;
}

.slider__dot {
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.5);
    transition: all var(--transition-base);
}

.slider__dot--active {
    background: var(--white);
    width: 28px;
}

/* --------------------------------------------------------------------------
   CREDIBILITY STRIP
   -------------------------------------------------------------------------- */
.credibility {
    background: var(--white);
    padding: var(--space-3xl) 0;
    border-bottom: 1px solid rgba(3, 27, 46, 0.08);
}

.credibility__title {
    text-align: center;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--blue-900);
    margin-bottom: var(--space-2xl);
}

.credibility__items {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.credibility__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    text-align: center;
}

.credibility__icon {
    color: var(--blue-600);
}

.credibility__item span {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--blue-800);
}

/* --------------------------------------------------------------------------
   BRANDS
   -------------------------------------------------------------------------- */
.brands {
    background: var(--gradient-light);
    padding: var(--space-4xl) 0;
}

.brands__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2xl);
    max-width: 700px;
    margin: 0 auto;
}

.brands__card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    min-height: 140px;
}

.brands__card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.brands__logo {
    max-width: 180px;
    height: auto;
    opacity: 0.85;
    transition: opacity var(--transition-base);
}

.brands__card:hover .brands__logo {
    opacity: 1;
}

/* --------------------------------------------------------------------------
   PRODUCTS
   -------------------------------------------------------------------------- */
.products {
    background: var(--white);
    padding: var(--space-4xl) 0;
}

.products__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-xl);
}

.product-card {
    background: var(--white);
    border: 1px solid rgba(3, 27, 46, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.product-card:hover {
    border-color: var(--blue-600);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.product-card__badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--gradient-cta);
    color: var(--white);
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.product-card__model {
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--blue-900);
    margin-bottom: var(--space-sm);
    font-family: 'Courier New', monospace;
}

.product-card__desc {
    font-size: var(--font-size-sm);
    color: var(--blue-800);
    opacity: 0.8;
    margin-bottom: var(--space-md);
}

.product-card__specs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.product-card__specs li {
    background: var(--blue-100);
    color: var(--blue-800);
    font-size: var(--font-size-xs);
    font-weight: 500;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
}

.product-card__cta {
    width: 100%;
}

/* --------------------------------------------------------------------------
   APPLICATIONS
   -------------------------------------------------------------------------- */
.applications {
    background: var(--gradient-light);
    padding: var(--space-4xl) 0;
}

.applications__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.application-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.application-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.application-card__icon {
    width: 80px;
    height: 80px;
    background: var(--blue-100);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    color: var(--blue-600);
}

.application-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--blue-900);
    margin-bottom: var(--space-sm);
}

.application-card p {
    font-size: var(--font-size-sm);
    color: var(--blue-800);
    opacity: 0.8;
}

/* --------------------------------------------------------------------------
   HELP CHOICE
   -------------------------------------------------------------------------- */
.help-choice {
    background: var(--gradient-primary);
    padding: var(--space-4xl) 0;
    position: relative;
    overflow: hidden;
}

.help-choice::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(10, 164, 199, 0.2) 0%, transparent 70%);
    border-radius: 50%;
}

.help-choice__inner {
    text-align: center;
    position: relative;
    z-index: 1;
}

.help-choice__title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 900;
    color: var(--white);
    margin-bottom: var(--space-lg);
}

.help-choice__text {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
    max-width: 650px;
    margin: 0 auto var(--space-2xl);
    line-height: 1.7;
}

.help-choice__ctas {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
}

/* --------------------------------------------------------------------------
   FORM SECTION
   -------------------------------------------------------------------------- */
.form-section {
    background: var(--white);
    padding: var(--space-4xl) 0;
}

.form-section__inner {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-4xl);
    align-items: start;
}

.form-section__title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--blue-900);
    margin-bottom: var(--space-md);
}

.form-section__desc {
    font-size: var(--font-size-lg);
    color: var(--blue-800);
    opacity: 0.85;
    margin-bottom: var(--space-2xl);
}

.form-section__benefits {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.form-section__benefit {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-weight: 500;
    color: var(--blue-800);
}

.form-section__benefit svg {
    color: var(--blue-600);
    flex-shrink: 0;
}

.form {
    background: var(--blue-100);
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
}

.form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form__group {
    margin-bottom: var(--space-md);
}

.form__label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--blue-900);
    margin-bottom: var(--space-sm);
}

.form__input,
.form__select,
.form__textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid rgba(3, 27, 46, 0.15);
    border-radius: var(--radius-lg);
    background: var(--white);
    color: var(--blue-900);
    transition: all var(--transition-base);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
    outline: none;
    border-color: var(--blue-600);
    box-shadow: 0 0 0 3px rgba(10, 164, 199, 0.15);
}

.form__select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23031B2E' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 18px;
    padding-right: 40px;
}

.form__textarea {
    resize: vertical;
    min-height: 100px;
}


/* --------------------------------------------------------------------------
   WHY US
   -------------------------------------------------------------------------- */
.why-us {
    background: var(--gradient-light);
    padding: var(--space-4xl) 0;
}

.why-us__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-xl);
}

.why-us__card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.why-us__card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.why-us__icon {
    width: 72px;
    height: 72px;
    background: var(--blue-100);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    color: var(--blue-600);
}

.why-us__card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--blue-900);
    margin-bottom: var(--space-sm);
}

.why-us__card p {
    font-size: var(--font-size-sm);
    color: var(--blue-800);
    opacity: 0.8;
}

/* --------------------------------------------------------------------------
   FAQ
   -------------------------------------------------------------------------- */
.faq {
    background: var(--white);
    padding: var(--space-4xl) 0;
}

.faq__list {
    max-width: 800px;
    margin: 0 auto;
}

.faq__item {
    border-bottom: 1px solid rgba(3, 27, 46, 0.1);
}

.faq__question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-xl) 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--blue-900);
    text-align: left;
    transition: color var(--transition-base);
}

.faq__question:hover {
    color: var(--blue-600);
}

.faq__icon {
    flex-shrink: 0;
    transition: transform var(--transition-base);
    color: var(--blue-600);
}

.faq__item.active .faq__icon {
    transform: rotate(180deg);
}

.faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.faq__item.active .faq__answer {
    max-height: 300px;
    padding-bottom: var(--space-xl);
}

.faq__answer p {
    font-size: var(--font-size-base);
    color: var(--blue-800);
    line-height: 1.7;
    opacity: 0.85;
}

/* --------------------------------------------------------------------------
   CTA FINAL
   -------------------------------------------------------------------------- */
.cta-final {
    background: var(--gradient-primary);
    padding: var(--space-4xl) 0;
    position: relative;
    overflow: hidden;
}

.cta-final::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(10, 164, 199, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    transform: translateY(-50%);
}

.cta-final::after {
    content: '';
    position: absolute;
    bottom: -30%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-final__inner {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-final__title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 900;
    color: var(--white);
    margin-bottom: var(--space-lg);
}

.cta-final__text {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto var(--space-2xl);
    line-height: 1.7;
}

.cta-final__ctas {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
}

/* --------------------------------------------------------------------------
   FOOTER
   -------------------------------------------------------------------------- */
.footer {
    background: var(--blue-900);
    color: var(--white);
    padding: var(--space-4xl) 0 var(--space-xl);
}

.footer__inner {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: var(--space-3xl);
    padding-bottom: var(--space-3xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__logo {
    height: 36px;
    width: auto;
    margin-bottom: var(--space-md);
}

.footer__tagline {
    font-size: var(--font-size-sm);
    opacity: 0.7;
}

.footer h4 {
    font-size: var(--font-size-base);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    color: var(--white);
}

.footer ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer ul a,
.footer ul li {
    font-size: var(--font-size-sm);
    opacity: 0.7;
    transition: opacity var(--transition-base);
}

.footer ul a:hover {
    opacity: 1;
    color: var(--blue-600);
}

.footer__placeholder span {
    color: var(--blue-600);
    font-style: italic;
}

.footer__bottom {
    padding-top: var(--space-xl);
    text-align: center;
}

.footer__bottom p {
    font-size: var(--font-size-sm);
    opacity: 0.5;
}

/* --------------------------------------------------------------------------
   WHATSAPP FLOATING BUTTON
   -------------------------------------------------------------------------- */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: var(--z-whatsapp);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    background: #25D366;
    color: var(--white);
    padding: 14px 20px;
    border-radius: var(--radius-full);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
    transition: all var(--transition-base);
    animation: whatsappPulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.6);
}

.whatsapp-float__text {
    font-weight: 600;
    font-size: var(--font-size-sm);
}

@keyframes whatsappPulse {
    0%, 100% {
        box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
    }
    50% {
        box-shadow: 0 6px 30px rgba(37, 211, 102, 0.7);
    }
}

/* --------------------------------------------------------------------------
   ANIMATIONS
   -------------------------------------------------------------------------- */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --------------------------------------------------------------------------
   RESPONSIVE - TABLET
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .hero__inner {
        grid-template-columns: 1fr;
        gap: var(--space-3xl);
    }

    .hero__content {
        text-align: center;
    }

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

    .hero__ctas {
        justify-content: center;
    }

    .hero__trust {
        justify-content: center;
    }

    .form-section__inner {
        grid-template-columns: 1fr;
    }

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

/* --------------------------------------------------------------------------
   RESPONSIVE - MOBILE
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
    :root {
        --font-size-3xl: 1.75rem;
        --font-size-4xl: 2rem;
        --font-size-5xl: 2.5rem;
    }

    .header__nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--blue-900);
        padding: var(--space-xl);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .header__nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .header__menu {
        flex-direction: column;
        gap: var(--space-md);
    }

    .header__menu a {
        display: block;
        padding: var(--space-sm) 0;
        font-size: var(--font-size-base);
    }

    .header__cta {
        display: none;
    }

    .header__hamburger {
        display: flex;
    }

    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }

    .hero__inner {
        gap: var(--space-2xl);
    }

    .hero__title {
        font-size: 1.75rem;
    }

    .hero__ctas {
        flex-direction: column;
    }

    .hero__ctas .btn {
        width: 100%;
    }

    .hero__trust {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .slider__arrow {
        width: 40px;
        height: 40px;
    }

    .slider__arrow--prev {
        left: 8px;
    }

    .slider__arrow--next {
        right: 8px;
    }

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

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

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

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

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

    .why-us__grid {
        grid-template-columns: 1fr;
    }

    .footer__inner {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

    .whatsapp-float {
        bottom: 16px;
        right: 16px;
        padding: 12px 16px;
    }

    .whatsapp-float__text {
        display: none;
    }
}

/* --------------------------------------------------------------------------
   RESPONSIVE - SMALL MOBILE
   -------------------------------------------------------------------------- */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }

    .credibility__items {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .slider__track {
        aspect-ratio: 1/1;
    }
}