/* ============================================================
   Luck Roca — Puro Sabor da Roca
   Stylesheet principal
   Paleta: terracota + oliva/mel sobre fundo creme
   ============================================================ */

/* ------------------------------------------------------------
   1. CSS Variables / Design Tokens
   ------------------------------------------------------------ */
:root {
    /* Cores */
    --c-primary: #A14A28;
    --c-primary-dark: #7A361C;
    --c-primary-light: #C15E36;
    --c-leaf: #6B7A3A;
    --c-gold: #D9952B;
    --c-gold-light: #E9B25A;
    --c-bg: #FBF7EF;
    --c-bg-alt: #F4ECDD;
    --c-bg-soft: #EDE3CE;
    --c-ink: #3B2E22;
    --c-ink-soft: #6C5746;
    --c-ink-mute: #9D8B7B;
    --c-white: #FFFFFF;
    --c-success: #1E6B3A;
    --c-error: #C0392B;
    --c-border: #E3DBC8;

    /* Tipografia */
    --font-heading: 'Fraunces', Georgia, 'Times New Roman', serif;
    --font-body: 'Nunito Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Dimensões do cabeçalho fixo */
    --announce-h: 42px;
    --header-h: 78px;
    --container-max: 1200px;

    /* Raio dos cantos — visual orgânico/arredondado */
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 22px;
    --radius-xl: 30px;

    /* Sombras */
    --shadow-sm: 0 2px 10px rgba(122, 54, 28, 0.06);
    --shadow-md: 0 12px 30px rgba(122, 54, 28, 0.10);
    --shadow-lg: 0 22px 54px rgba(122, 54, 28, 0.15);
    --shadow-brand: 0 14px 30px rgba(217, 149, 43, 0.28);

    /* Espaçamentos */
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Transições */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ------------------------------------------------------------
   2. Reset & Base
   ------------------------------------------------------------ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--announce-h) + var(--header-h) + 16px);
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--c-ink);
    background-color: var(--c-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    padding-top: calc(var(--announce-h) + var(--header-h));
    transition: padding-top var(--transition-base);
}

body.scrolled {
    --announce-h: 0px;
}

img,
svg {
    display: block;
    max-width: 100%;
}

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

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
}

/* ------------------------------------------------------------
   3. Container & Utilitários
   ------------------------------------------------------------ */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.section {
    padding: var(--space-4xl) 0;
}

.section--alt {
    background-color: var(--c-bg-alt);
}

.section--soft {
    background-color: var(--c-bg-soft);
}

.section__label {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--c-leaf);
    margin-bottom: var(--space-sm);
}

.section__label--center {
    display: block;
    text-align: center;
}

.section__title {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 3.6vw, 2.6rem);
    font-weight: 600;
    line-height: 1.18;
    color: var(--c-primary-dark);
    letter-spacing: -0.01em;
}

.section__title--center {
    text-align: center;
}

.section__lead {
    color: var(--c-ink-soft);
    font-size: 1.05rem;
    max-width: 640px;
    margin-top: var(--space-sm);
}

.section__lead--center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.section__head {
    margin-bottom: var(--space-2xl);
}

/* ------------------------------------------------------------
   4. Botões
   ------------------------------------------------------------ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.85rem 1.7rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 700;
    border-radius: 100px;
    border: 1.5px solid transparent;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
    cursor: pointer;
}

.btn--primary {
    background-color: var(--c-primary);
    color: var(--c-white);
    box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
    background-color: var(--c-primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn--gold {
    background-color: var(--c-gold);
    color: var(--c-primary-dark);
    box-shadow: var(--shadow-brand);
}

.btn--gold:hover {
    background-color: var(--c-gold-light);
    transform: translateY(-2px);
}

.btn--outline {
    background-color: transparent;
    color: var(--c-white);
    border-color: rgba(255, 255, 255, 0.55);
}

.btn--outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--c-white);
}

.btn--outline-dark {
    background-color: transparent;
    color: var(--c-primary);
    border-color: var(--c-primary);
}

.btn--outline-dark:hover {
    background-color: var(--c-primary);
    color: var(--c-white);
}

/* ------------------------------------------------------------
   5. Barra de anúncio
   ------------------------------------------------------------ */
.announcement {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--announce-h);
    background-color: var(--c-primary-dark);
    color: rgba(255, 255, 255, 0.92);
    font-size: 0.85rem;
    z-index: 100;
    overflow: hidden;
    transition: height var(--transition-base);
}

.announcement__inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.announcement__icon {
    display: inline-flex;
    color: var(--c-gold-light);
}

.announcement__icon svg {
    width: 16px;
    height: 16px;
}

.announcement__sep {
    color: var(--c-gold-light);
}

.announcement__extra {
    opacity: 0.75;
}

.announcement__link {
    color: var(--c-gold-light);
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.announcement__link:hover {
    color: var(--c-white);
}

/* ------------------------------------------------------------
   6. Header / Navegação
   ------------------------------------------------------------ */
.header {
    position: fixed;
    top: var(--announce-h);
    left: 0;
    right: 0;
    height: var(--header-h);
    background-color: rgba(253, 252, 247, 0.94);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--c-border);
    z-index: 90;
    transition: top var(--transition-base);
}

.header__inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo__icon img {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
}

.logo__text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.logo__name {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--c-primary-dark);
}

.logo__tagline {
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--c-ink-mute);
}

.nav__list {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav__link {
    font-weight: 700;
    color: var(--c-ink-soft);
    padding: 0.4rem 0;
    position: relative;
}

.nav__link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--c-gold);
    transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link--active {
    color: var(--c-primary);
}

.nav__link:hover::after,
.nav__link--active::after {
    width: 100%;
}

.header__cta {
    padding: 0.65rem 1.3rem;
}

/* Burger */
.burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 10px;
    background: transparent;
    border: none;
}

.burger__line {
    display: block;
    height: 2px;
    width: 100%;
    background-color: var(--c-primary-dark);
    border-radius: 2px;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.burger--active .burger__line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.burger--active .burger__line:nth-child(2) {
    opacity: 0;
}

.burger--active .burger__line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.nav-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(122, 54, 28, 0.45);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
    z-index: 85;
}

.nav-overlay--visible {
    opacity: 1;
    pointer-events: auto;
}

/* ------------------------------------------------------------
   7. Hero (página inicial)
   ------------------------------------------------------------ */
.hero {
    position: relative;
    background:
        radial-gradient(1000px 480px at 85% -10%, rgba(217, 149, 43, 0.24), transparent 60%),
        linear-gradient(135deg, var(--c-primary-dark) 0%, var(--c-primary) 60%, var(--c-primary-light) 100%);
    color: var(--c-white);
    padding: var(--space-4xl) 0;
    overflow: hidden;
}

.hero__inner {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: var(--space-3xl);
}

.hero__pill {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.45rem 1rem;
    background-color: rgba(217, 149, 43, 0.18);
    border: 1px solid rgba(217, 149, 43, 0.45);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--c-gold-light);
}

.hero__pill svg {
    width: 16px;
    height: 16px;
}

.hero__title {
    font-family: var(--font-heading);
    font-size: clamp(2.1rem, 4.8vw, 3.4rem);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin: var(--space-lg) 0 var(--space-md);
}

.hero__title em {
    font-style: italic;
    color: var(--c-gold-light);
}

.hero__subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.88);
    max-width: 520px;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.hero__visual {
    display: flex;
    justify-content: center;
}

.hero-card {
    width: 100%;
    max-width: 380px;
    background-color: var(--c-white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    color: var(--c-ink);
    box-shadow: var(--shadow-lg);
    position: relative;
}

.hero-card__badge {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    background-color: var(--c-gold);
    color: var(--c-primary-dark);
    font-weight: 700;
    font-size: 0.8rem;
    padding: 0.3rem 0.7rem;
    border-radius: 100px;
}

.hero-card__media {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 160px;
    background-color: var(--c-bg-soft);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
}

.hero-card__media svg {
    width: 88px;
    height: 88px;
    color: var(--c-leaf);
}

.hero-card__cat {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--c-ink-mute);
}

.hero-card__title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--c-primary-dark);
    margin: var(--space-xs) 0 var(--space-md);
}

.hero-card .btn {
    width: 100%;
    margin-top: var(--space-sm);
}

/* ------------------------------------------------------------
   8. Chips (atalhos por categoria)
   ------------------------------------------------------------ */
.chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.65rem 1.2rem;
    background-color: var(--c-white);
    border: 1.5px solid var(--c-border);
    border-radius: 100px;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--c-ink-soft);
    transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.chip svg {
    width: 18px;
    height: 18px;
}

.chip:hover {
    border-color: var(--c-gold);
    color: var(--c-primary);
    transform: translateY(-2px);
}

.chip.active {
    border-color: var(--c-primary);
    background-color: var(--c-primary);
    color: var(--c-white);
}

/* ------------------------------------------------------------
   9. Cards de produto
   ------------------------------------------------------------ */
.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.product-card {
    background-color: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.product-card__media {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 150px;
    background-color: var(--c-bg-soft);
    position: relative;
}

.product-card__media svg {
    width: 74px;
    height: 74px;
    color: var(--c-leaf);
}

.product-card__badge {
    position: absolute;
    top: var(--space-sm);
    left: var(--space-sm);
    background-color: var(--c-gold);
    color: var(--c-primary-dark);
    font-weight: 700;
    font-size: 0.78rem;
    padding: 0.25rem 0.65rem;
    border-radius: 100px;
}

.product-card__body {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.product-card__cat {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--c-ink-mute);
}

.product-card__title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--c-primary-dark);
    margin: var(--space-xs) 0;
}

.product-card__desc {
    color: var(--c-ink-soft);
    font-size: 0.95rem;
    flex: 1;
}

.product-card__link {
    margin-top: var(--space-md);
    font-weight: 700;
    color: var(--c-primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.product-card__link:hover {
    color: var(--c-gold);
}

/* ------------------------------------------------------------
   10. Vantagens
   ------------------------------------------------------------ */
.advantages__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.advantage {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
}

.advantage__icon {
    flex-shrink: 0;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background-color: var(--c-bg-soft);
    color: var(--c-leaf);
}

.advantage__icon svg {
    width: 26px;
    height: 26px;
}

.advantage__title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--c-primary-dark);
    margin-bottom: 2px;
}

.advantage__text {
    font-size: 0.9rem;
    color: var(--c-ink-soft);
}

/* ------------------------------------------------------------
   11. Sobre (prévia na home)
   ------------------------------------------------------------ */
.about-preview__grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-preview__text p {
    margin-top: var(--space-md);
    color: var(--c-ink-soft);
}

.about-preview__text .btn {
    margin-top: var(--space-xl);
}

.about-preview__visual {
    display: flex;
    justify-content: center;
}

.about-preview__card {
    width: 100%;
    max-width: 400px;
    background-color: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
}

.about-preview__card-row {
    display: flex;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--c-border);
}

.about-preview__card-row:last-child {
    border-bottom: none;
}

.about-preview__card-label {
    font-size: 0.85rem;
    color: var(--c-ink-mute);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 700;
}

.about-preview__card-value {
    font-weight: 700;
    color: var(--c-primary-dark);
    text-align: right;
}

/* ------------------------------------------------------------
   12. CTA
   ------------------------------------------------------------ */
.cta {
    background:
        radial-gradient(900px 420px at 20% 0%, rgba(217, 149, 43, 0.22), transparent 60%),
        linear-gradient(135deg, var(--c-primary-dark), var(--c-primary));
    color: var(--c-white);
}

.cta__inner {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta__title {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 3.6vw, 2.5rem);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.cta__text {
    color: rgba(255, 255, 255, 0.88);
    margin-bottom: var(--space-xl);
}

/* ------------------------------------------------------------
   13. Footer
   ------------------------------------------------------------ */
.footer {
    background-color: var(--c-primary-dark);
    color: rgba(255, 255, 255, 0.82);
    padding-top: var(--space-3xl);
}

.footer__grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
    gap: var(--space-2xl);
    padding-bottom: var(--space-2xl);
}

.logo--footer .logo__name {
    color: var(--c-white);
}

.logo--footer .logo__tagline {
    color: rgba(255, 255, 255, 0.55);
}

.footer__brand-text {
    margin-top: var(--space-md);
    font-size: 0.92rem;
    max-width: 320px;
}

.footer__social {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}

.footer__social a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.08);
    color: var(--c-white);
    transition: background var(--transition-fast);
}

.footer__social a:hover {
    background-color: var(--c-gold);
    color: var(--c-primary-dark);
}

.footer__social svg {
    width: 18px;
    height: 18px;
}

.footer__heading {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--c-white);
    margin-bottom: var(--space-md);
}

.footer__list li {
    margin-bottom: var(--space-sm);
}

.footer__list a {
    color: rgba(255, 255, 255, 0.74);
    font-size: 0.92rem;
}

.footer__list a:hover {
    color: var(--c-gold-light);
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding: var(--space-lg) 0;
    font-size: 0.85rem;
}

.footer__bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

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

.footer__legal a {
    color: rgba(255, 255, 255, 0.74);
}

.footer__legal a:hover {
    color: var(--c-gold-light);
}

/* ------------------------------------------------------------
   14. Hero de página interna
   ------------------------------------------------------------ */
.page-hero {
    background:
        radial-gradient(1000px 420px at 80% -10%, rgba(217, 149, 43, 0.24), transparent 60%),
        linear-gradient(135deg, var(--c-primary-dark), var(--c-primary));
    color: var(--c-white);
    padding: var(--space-3xl) 0;
}

.page-hero__breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.72);
    margin-bottom: var(--space-md);
}

.page-hero__breadcrumb a:hover {
    color: var(--c-gold-light);
}

.page-hero__title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4.2vw, 3rem);
    font-weight: 600;
    letter-spacing: -0.01em;
}

.page-hero__lead {
    color: rgba(255, 255, 255, 0.88);
    max-width: 640px;
    margin-top: var(--space-sm);
    font-size: 1.05rem;
}

/* ------------------------------------------------------------
   15. Conteúdo legal (termos / privacidade)
   ------------------------------------------------------------ */
.legal {
    max-width: 780px;
    margin: 0 auto;
}

.legal h2 {
    font-family: var(--font-heading);
    font-size: 1.45rem;
    font-weight: 600;
    color: var(--c-primary-dark);
    margin: var(--space-2xl) 0 var(--space-sm);
}

.legal p {
    color: var(--c-ink-soft);
    margin-bottom: var(--space-md);
}

.legal ul {
    list-style: disc;
    padding-left: 1.4rem;
    color: var(--c-ink-soft);
    margin-bottom: var(--space-md);
}

.legal ul li {
    margin-bottom: var(--space-xs);
}

.legal__updated {
    color: var(--c-ink-mute);
    font-size: 0.85rem;
    margin-bottom: var(--space-lg);
}

/* ------------------------------------------------------------
   16. Contato
   ------------------------------------------------------------ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-2xl);
    align-items: start;
}

.info-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-lg);
    background-color: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
}

.info-item__icon {
    flex-shrink: 0;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--c-bg-soft);
    color: var(--c-leaf);
}

.info-item__icon svg {
    width: 24px;
    height: 24px;
}

.info-item__label {
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--c-ink-mute);
    font-weight: 700;
}

.info-item__value {
    font-weight: 700;
    color: var(--c-primary-dark);
    margin-top: 2px;
}

.info-item__value a:hover {
    color: var(--c-gold);
}

.contact-form {
    background-color: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--c-primary-dark);
    margin-bottom: var(--space-xs);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--c-ink);
    background-color: var(--c-bg);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--c-leaf);
    box-shadow: 0 0 0 3px rgba(161, 74, 40, 0.12);
}

.form-input.invalid,
.form-textarea.invalid {
    border-color: var(--c-error);
}

.form-textarea {
    min-height: 140px;
    resize: vertical;
}

.form-error {
    display: none;
    color: var(--c-error);
    font-size: 0.82rem;
    margin-top: 4px;
}

.form-error.visible {
    display: block;
}

.form-success {
    display: none;
    background-color: rgba(30, 107, 58, 0.1);
    border: 1px solid var(--c-success);
    color: var(--c-success);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    font-weight: 700;
    margin-top: var(--space-md);
}

.form-success.visible {
    display: block;
}

/* ------------------------------------------------------------
   17. Scroll reveal
   ------------------------------------------------------------ */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.js .reveal {
    opacity: 0;
    transform: translateY(24px);
}

.js .reveal.revealed {
    opacity: 1;
    transform: none;
}

/* ------------------------------------------------------------
   18. Responsivo
   ------------------------------------------------------------ */
@media (max-width: 1024px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

@media (max-width: 768px) {
    :root {
        --header-h: 68px;
    }

    .nav {
        position: fixed;
        top: calc(var(--announce-h) + var(--header-h));
        right: 0;
        width: min(78vw, 320px);
        height: calc(100vh - var(--announce-h) - var(--header-h));
        background-color: var(--c-white);
        border-left: 1px solid var(--c-border);
        transform: translateX(100%);
        transition: transform var(--transition-base);
        z-index: 95;
        padding: var(--space-lg);
    }

    .nav--open {
        transform: translateX(0);
    }

    .nav__list {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }

    .nav__link {
        font-size: 1.05rem;
    }

    .header__cta {
        display: none;
    }

    .burger {
        display: flex;
    }

    .announcement__extra,
    .announcement__sep {
        display: none;
    }

    .hero__inner,
    .about-preview__grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .hero__visual {
        order: 2;
    }

    .product-grid,
    .advantages__grid {
        grid-template-columns: 1fr;
    }

    .footer__bottom .container {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-lg);
    }

    .section {
        padding: var(--space-3xl) 0;
    }

    .hero__actions {
        flex-direction: column;
    }

    .hero__actions .btn {
        width: 100%;
    }

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

/* ------------------------------------------------------------
   19. Acessibilidade — reduzir movimento
   ------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}

@media print {
    .announcement,
    .header,
    .footer,
    .burger {
        display: none;
    }

    body {
        padding-top: 0;
    }
}