/* =============================================
   ARIBUSTA — Landing Page Styles
   Light theme · Modern · Mobile-first
   ============================================= */

/* ----- CSS Custom Properties ----- */
:root {
    /* Brand palette */
    --color-primary: #6F4E37;
    --color-primary-light: #A0785A;
    --color-primary-dark: #4E3526;
    --color-accent: #C9956B;
    --color-accent-light: #E8D5C0;

    /* Neutrals */
    --color-bg: #FAFAF7;
    --color-bg-alt: #F3F0EB;
    --color-surface: #FFFFFF;
    --color-text: #2C2420;
    --color-text-muted: #7A7068;
    --color-border: #E8E3DD;

    /* Semantic */
    --color-success: #4CAF50;
    --color-star: #F5A623;

    /* Typography */
    --font-body: 'Outfit', sans-serif;
    --font-heading: 'Playfair Display', serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2.5rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(44,36,32,0.06);
    --shadow-md: 0 4px 16px rgba(44,36,32,0.08);
    --shadow-lg: 0 8px 32px rgba(44,36,32,0.12);

    /* Transition */
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

ul { list-style: none; }

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

/* ----- Container ----- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ----- Typography ----- */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    line-height: 1.25;
    color: var(--color-text);
}

/* ----- Buttons ----- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.9rem;
    border: 2px solid transparent;
    border-radius: var(--radius-full);
    padding: 0.65rem 1.6rem;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn--primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

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

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

.btn--outline:hover {
    background: var(--color-primary);
    color: #fff;
    transform: translateY(-2px);
}

.btn--white {
    background: #fff;
    color: var(--color-primary);
    border-color: #fff;
}

.btn--white:hover {
    background: var(--color-accent-light);
    border-color: var(--color-accent-light);
    transform: translateY(-2px);
}

.btn--lg {
    padding: 0.85rem 2.2rem;
    font-size: 1rem;
}

.btn--sm {
    padding: 0.45rem 1.2rem;
    font-size: 0.8rem;
}

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

/* ----- Section Header ----- */
.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-header__tag {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-primary-light);
    margin-bottom: var(--space-sm);
}

.section-header__title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    color: var(--color-text);
}

/* =============================================
   NAVBAR
   ============================================= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    transition: all var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--shadow-sm);
    padding: var(--space-sm) 0;
}

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

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

.logo__icon {
    font-size: 1.6rem;
}

.logo__text {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-primary);
}

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

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
    position: relative;
    padding: var(--space-xs) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: width var(--transition);
}

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

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

.navbar__cta {
    font-size: 0.85rem;
}

/* Hamburger */
.navbar__hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
    z-index: 1001;
}

.navbar__hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition);
}

.navbar__hamburger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.navbar__hamburger.open span:nth-child(2) {
    opacity: 0;
}

.navbar__hamburger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* =============================================
   HERO
   ============================================= */
.hero {
    padding: 10rem 0 var(--space-3xl);
    background: linear-gradient(160deg, var(--color-bg) 0%, var(--color-bg-alt) 50%, var(--color-accent-light) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -120px;
    right: -120px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(111,78,55,0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -80px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(201,149,107,0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.hero__inner {
    position: relative;
    z-index: 1;
}

.hero__content {
    max-width: 680px;
}

.hero__tagline {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--color-primary-light);
    margin-bottom: var(--space-md);
}

.hero__title {
    font-size: clamp(2.4rem, 6vw, 4rem);
    margin-bottom: var(--space-lg);
    color: var(--color-text);
}

.hero__title .highlight {
    color: var(--color-primary);
    position: relative;
}

.hero__title .highlight::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    width: 100%;
    height: 8px;
    background: var(--color-accent-light);
    z-index: -1;
    border-radius: 4px;
}

.hero__desc {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    max-width: 540px;
    margin-bottom: var(--space-xl);
    line-height: 1.8;
}

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

/* Hero Stats */
.hero__stats {
    display: flex;
    gap: var(--space-2xl);
    margin-top: var(--space-3xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
}

.stat__number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat__label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* =============================================
   FEATURES
   ============================================= */
.features {
    padding: var(--space-3xl) 0;
}

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

.feature-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    transition: all var(--transition);
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.feature-card__icon {
    font-size: 2rem;
    margin-bottom: var(--space-md);
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
}

.feature-card__title {
    font-size: 1.15rem;
    margin-bottom: var(--space-sm);
    font-family: var(--font-body);
    font-weight: 600;
}

.feature-card__desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* =============================================
   PRODUCTS
   ============================================= */
.products {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-alt);
}

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

.product-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.product-card__badge {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    background: var(--color-primary);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.3rem 0.8rem;
    border-radius: var(--radius-full);
    z-index: 2;
}

.product-card__badge--new {
    background: var(--color-success);
}

.product-card__image {
    height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-accent-light) 100%);
}

.product-card__emoji {
    font-size: 4rem;
}

.product-card__body {
    padding: var(--space-lg);
}

.product-card__name {
    font-size: 1.2rem;
    font-family: var(--font-heading);
    margin-bottom: var(--space-xs);
}

.product-card__origin {
    font-size: 0.82rem;
    color: var(--color-primary-light);
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.product-card__notes {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.product-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.product-card__price {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-primary);
}

/* =============================================
   ABOUT
   ============================================= */
.about {
    padding: var(--space-3xl) 0;
}

.about__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.about__image-placeholder {
    width: 100%;
    height: 420px;
    background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-bg-alt) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-size: 4rem;
    color: var(--color-primary-light);
}

.about__image-placeholder p {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-muted);
}

.about__content .section-header__tag,
.about__content .section-header__title {
    text-align: left;
}

.about__content .section-header__title {
    margin-bottom: var(--space-lg);
}

.about__text {
    font-size: 1rem;
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.about__content .btn {
    margin-top: var(--space-md);
}

/* =============================================
   TESTIMONIALS
   ============================================= */
.testimonials {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-alt);
}

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

.testimonial-card {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

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

.testimonial-card__stars {
    color: var(--color-star);
    font-size: 1.1rem;
    margin-bottom: var(--space-md);
    letter-spacing: 2px;
}

.testimonial-card__text {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
    font-style: italic;
}

.testimonial-card__author {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.testimonial-card__avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
}

.testimonial-card__name {
    font-weight: 600;
    font-size: 0.9rem;
}

.testimonial-card__role {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* =============================================
   CTA BANNER
   ============================================= */
.cta-banner {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: var(--space-3xl) 0;
}

.cta-banner__inner {
    text-align: center;
}

.cta-banner__title {
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    color: #fff;
    margin-bottom: var(--space-md);
}

.cta-banner__desc {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.85);
    max-width: 520px;
    margin: 0 auto var(--space-xl);
    line-height: 1.7;
}

/* =============================================
   CONTACT
   ============================================= */
.contact {
    padding: var(--space-3xl) 0;
}

.contact__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: start;
}

.contact__info .section-header__tag,
.contact__info .section-header__title {
    text-align: left;
}

.contact__info .section-header__title {
    margin-bottom: var(--space-lg);
}

.contact__text {
    font-size: 1rem;
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

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

.contact__detail {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 0.95rem;
}

.contact__detail-icon {
    font-size: 1.3rem;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
}

/* Form */
.contact__form {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}

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

.form-input {
    width: 100%;
    font-family: var(--font-body);
    font-size: 0.95rem;
    padding: 0.85rem var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    color: var(--color-text);
    transition: all var(--transition);
    outline: none;
}

.form-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(111,78,55,0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
    background: var(--color-text);
    color: rgba(255,255,255,0.7);
    padding-top: var(--space-3xl);
}

.footer__inner {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-2xl);
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer .logo__text {
    color: #fff;
}

.footer__tagline {
    margin-top: var(--space-md);
    font-size: 0.9rem;
    line-height: 1.7;
}

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

.footer__column h4 {
    color: #fff;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

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

.footer__column ul li a {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.6);
    transition: color var(--transition);
}

.footer__column ul li a:hover {
    color: #fff;
}

.footer__bottom {
    padding: var(--space-lg) 0;
}

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

.footer__bottom p {
    font-size: 0.85rem;
}

.footer__social {
    display: flex;
    gap: var(--space-md);
}

.social-link {
    font-size: 1.2rem;
    transition: opacity var(--transition);
}

.social-link:hover {
    opacity: 0.7;
}

/* =============================================
   ANIMATIONS
   ============================================= */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* =============================================
   RESPONSIVE — Tablet
   ============================================= */
@media (max-width: 992px) {
    .features__grid,
    .products__grid,
    .testimonials__grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

/* =============================================
   RESPONSIVE — Mobile
   ============================================= */
@media (max-width: 768px) {
    .navbar__hamburger {
        display: flex;
    }

    .navbar__links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        max-width: 320px;
        height: 100vh;
        background: var(--color-surface);
        flex-direction: column;
        align-items: flex-start;
        padding: 5rem var(--space-xl) var(--space-xl);
        gap: var(--space-md);
        box-shadow: var(--shadow-lg);
        transition: right var(--transition);
        z-index: 1000;
    }

    .navbar__links.open {
        right: 0;
    }

    .navbar__cta {
        display: none;
    }

    .hero {
        padding: 8rem 0 var(--space-2xl);
    }

    .hero__title {
        font-size: clamp(2rem, 8vw, 2.8rem);
    }

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

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

    .about__inner,
    .contact__inner {
        grid-template-columns: 1fr;
    }

    .about__image-placeholder {
        height: 280px;
    }

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

    .footer__bottom-inner {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero__stats {
        flex-direction: column;
        gap: var(--space-lg);
    }

    .hero__actions {
        flex-direction: column;
    }

    .hero__actions .btn {
        width: 100%;
    }

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