/* ============================================
   FUTURA — Editorial Components
   ============================================ */

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 1.875rem;
    font-family: var(--font-body);
    font-size: var(--fs-small);
    font-weight: var(--fw-medium);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border-radius: var(--radius-pill);
    transition: transform var(--transition-fast), background var(--transition-fast),
        border-color var(--transition-fast), color var(--transition-fast);
}

.btn-primary {
    background: var(--color-charcoal);
    color: var(--color-pure-white);
    border: 1px solid var(--color-charcoal);
}

.btn-primary:hover {
    background: var(--color-zeppelin);
    border-color: var(--color-zeppelin);
    transform: translateY(-3px);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--fs-xs);
    letter-spacing: 0.06em;
}

.btn-secondary {
    background: var(--bg-surface);
    color: var(--color-charcoal);
    border: 1px solid var(--color-border-strong);
}

.btn-secondary:hover {
    border-color: var(--color-zeppelin);
    transform: translateY(-3px);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-pure-white);
    border: 1px solid rgba(255, 255, 255, 0.35);
    backdrop-filter: blur(12px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-3px);
}

.btn-outline-dark {
    background: transparent;
    color: var(--color-charcoal);
    border: 1px solid var(--color-warm-stone);
    text-transform: none;
    letter-spacing: -0.01em;
    font-weight: var(--fw-medium);
    border-radius: var(--radius-nested);
    padding: 0.75rem 1.5rem;
}

.btn-outline-dark:hover {
    border-color: var(--color-charcoal);
    background: var(--bg-main);
    transform: translateY(-2px);
}

.btn-ghost {
    padding: 0.65rem 1rem;
    color: var(--color-zeppelin);
    text-transform: none;
    letter-spacing: -0.01em;
    border-radius: var(--radius-nested);
}

.btn-ghost:hover {
    background: var(--bg-alt);
}

/* ---- Navigation ---- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    z-index: var(--z-nav);
    transition: transform var(--transition-base), background var(--transition-base);
}

.navbar.is-mobile-nav-open {
    z-index: calc(var(--z-nav) + 3);
}

.navbar.transparent .nav-shell {
    background: transparent;
    border-color: transparent;
    box-shadow: none;
}

.navbar.scrolled .nav-shell {
    background: var(--color-glass);
    border-color: var(--color-border);
    box-shadow: var(--shadow-nav);
    backdrop-filter: blur(20px) saturate(1.2);
    -webkit-backdrop-filter: blur(20px) saturate(1.2);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-max);
    height: 100%;
    margin: 0 auto;
    padding: 0 var(--gutter);
}

.nav-shell {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    margin-top: 12px;
    padding: 0.5rem 0.5rem 0.5rem 1.25rem;
    border-radius: var(--radius-pill);
    border: 1px solid transparent;
    transition: all var(--transition-base);
}

.nav-logo img {
    height: 40px;
    width: auto;
    transition: opacity var(--transition-fast);
}

.navbar.scrolled .nav-logo img {
    filter: none;
}

.navbar:not(.scrolled) .nav-logo img {
    filter: brightness(0) invert(1);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: clamp(1rem, 2vw, 2rem);
}

.nav-link {
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text);
    position: relative;
    padding: 0.5rem 0;
    transition: color var(--transition-fast);
}

.navbar:not(.scrolled) .nav-link:not(.nav-cta) {
    color: rgba(255, 255, 255, 0.88);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width var(--transition-fast);
    transform-origin: left;
}

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

.nav-link.nav-cta {
    padding: 0.65rem 1.35rem;
    background: var(--color-charcoal);
    color: var(--color-pure-white) !important;
    border-radius: var(--radius-pill);
    letter-spacing: 0.05em;
}

.navbar:not(.scrolled) .nav-link.nav-cta {
    background: var(--color-pure-white);
    color: var(--color-charcoal) !important;
}

.nav-link.nav-cta::after {
    display: none;
}

.nav-link.nav-cta:hover {
    transform: translateY(-1px);
    opacity: 0.92;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
    z-index: calc(var(--z-nav) + 2);
}

.hamburger-line {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--color-charcoal);
    transition: all var(--transition-fast);
    border-radius: 1px;
}

.navbar:not(.scrolled) .hamburger-line {
    background: var(--color-pure-white);
}

.hamburger.active .hamburger-line {
    background: var(--color-pure-white);
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 5px);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -5px);
}

.mobile-nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(17, 17, 17, 0.94);
    backdrop-filter: blur(24px);
    z-index: calc(var(--z-nav) + 1);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-close {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-pure-white);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transition: background var(--transition-fast), border-color var(--transition-fast);
}

.mobile-nav-close:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.35);
}

.mobile-nav-links li {
    margin-bottom: var(--space-xl);
}

.mobile-nav-link {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: var(--fw-medium);
    letter-spacing: -0.03em;
    color: var(--color-pure-white);
    transition: opacity var(--transition-fast);
}

.mobile-nav-link:hover {
    opacity: 0.55;
}

/* ---- Hero shared ---- */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem 0.5rem 0.75rem;
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.9);
    border-radius: var(--radius-pill);
    background: var(--color-glass-dark);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(16px);
    margin-bottom: var(--space-content-md);
}

.hero-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-warm-stone);
}

.hero-title {
    font-family: var(--font-display);
    font-size: var(--fs-display);
    font-weight: var(--fw-medium);
    line-height: 1.05;
    letter-spacing: -0.04em;
    color: var(--color-pure-white);
    margin-bottom: var(--space-content-md);
    max-width: 14ch;
}

.hero-title-accent {
    display: block;
    font-weight: var(--fw-regular);
    color: rgba(255, 255, 255, 0.75);
    margin-top: 0.15em;
}

.hero-subtitle {
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.72);
    max-width: 32rem;
    margin-bottom: var(--space-content-lg);
}

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

.scroll-indicator {
    position: absolute;
    bottom: var(--space-2xl);
    left: var(--gutter);
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    z-index: 2;
}

.scroll-line {
    width: 1px;
    height: 48px;
    background: linear-gradient(180deg, rgba(255,255,255,0.6), transparent);
    animation: scrollWheel 2s ease-in-out infinite;
}

.scroll-text {
    font-size: var(--fs-xs);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
    writing-mode: vertical-rl;
    transform: rotate(180deg);
}

.scroll-mouse {
    display: none;
}

/* ---- Carousel ---- */
.product-carousel-wrapper {
    position: relative;
    overflow: visible;
    padding: var(--space-md) 0;
}

.product-carousel-viewport {
    overflow: hidden;
}

.product-carousel {
    display: flex;
    gap: var(--gutter);
    transition: transform 0.8s var(--ease-smooth);
    will-change: transform;
}

.product-carousel-card {
    flex: 0 0 calc(50% - 12px);
    min-width: calc(50% - 12px);
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    background: var(--bg-surface);
    border-radius: var(--radius-main);
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.product-carousel-image {
    aspect-ratio: auto;
    min-height: 100%;
    overflow: hidden;
}

.product-carousel-image img {
    width: 100%;
    height: 100%;
    min-height: 280px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-carousel-card:hover .product-carousel-image img {
    transform: scale(1.04);
}

.product-carousel-body {
    padding: var(--space-2xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.product-carousel-name {
    font-family: var(--font-display);
    font-size: var(--fs-subsection);
    margin-bottom: var(--space-sm);
}

.product-carousel-desc {
    font-size: var(--fs-small);
    line-height: 1.65;
    margin-bottom: var(--space-xl);
    flex: 1;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-surface);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-charcoal);
    transition: all var(--transition-fast);
    z-index: 2;
}

.carousel-btn:hover {
    background: var(--color-charcoal);
    color: var(--color-pure-white);
    border-color: var(--color-charcoal);
}

.carousel-prev { left: -8px; }
.carousel-next { right: -8px; }

/* ---- Suppliers ---- */
.suppliers-section,
.products-suppliers-section {
    background: var(--color-zeppelin);
    position: relative;
    overflow: hidden;
}

.suppliers-section::before,
.products-suppliers-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 60% at 20% 0%, rgba(255,255,255,0.08), transparent);
    pointer-events: none;
}

.suppliers-section .section-title,
.suppliers-section .section-subtitle,
.products-suppliers-section .section-title,
.products-suppliers-section .section-subtitle {
    color: var(--color-pure-white);
}

.suppliers-section .section-label,
.products-suppliers-section .section-label {
    color: rgba(255, 255, 255, 0.55);
}

.suppliers-section .section-label::before,
.products-suppliers-section .section-label::before {
    background: rgba(255, 255, 255, 0.25);
}

.suppliers-section .section-divider,
.products-suppliers-section .section-divider {
    background: linear-gradient(90deg, rgba(255,255,255,0.4), transparent);
}

.suppliers-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--gutter);
    position: relative;
    z-index: 1;
}

.supplier-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    padding: var(--space-xl);
    min-height: 140px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-secondary);
    transition: all var(--transition-base);
}

.supplier-card:hover {
    background: var(--bg-surface);
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}

.supplier-logo {
    width: 72px;
    height: 72px;
    object-fit: contain;
    filter: grayscale(100%) brightness(1.15);
    opacity: 0.65;
    transition: all var(--transition-base);
}

.supplier-card:hover .supplier-logo {
    filter: grayscale(0);
    opacity: 1;
    transform: scale(1.06);
}

.supplier-name {
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.55);
    transition: color var(--transition-fast);
}

.supplier-card:hover .supplier-name {
    color: var(--color-charcoal);
}

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

.form-label {
    display: block;
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--space-sm);
}

.form-input {
    width: 100%;
    padding: 1rem 1.125rem;
    background: var(--bg-main);
    border: 1px solid transparent;
    border-radius: var(--radius-nested);
    color: var(--color-text);
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.form-input:focus {
    outline: none;
    background: var(--bg-surface);
    border-color: var(--color-warm-stone);
}

.form-input.error {
    border-color: var(--color-error);
}

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

.form-error {
    display: block;
    font-size: var(--fs-xs);
    color: var(--color-error);
    margin-top: var(--space-xs);
    min-height: 1rem;
}

.form-status {
    margin-top: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-nested);
    font-size: var(--fs-small);
    display: none;
}

.form-status.success {
    display: block;
    background: rgba(45, 106, 79, 0.08);
    color: var(--color-success);
    border: 1px solid rgba(45, 106, 79, 0.15);
}

.form-status.error {
    display: block;
    background: rgba(155, 34, 38, 0.06);
    color: var(--color-error);
}

.form-status.loading {
    display: block;
    background: rgba(95, 100, 104, 0.08);
    color: var(--color-zeppelin);
    border: 1px solid rgba(95, 100, 104, 0.12);
}

.form-honeypot {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.btn-primary:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
}

/* ---- Footer ---- */
.site-footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.78);
    padding: var(--space-content-xl) 0 var(--space-xl);
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: var(--gutter);
    right: var(--gutter);
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.18), transparent);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: var(--space-content-lg);
    margin-bottom: var(--space-content-lg);
}

.footer-grid:has(.footer-contact-col) {
    grid-template-columns: 1.4fr 1fr 1fr 1.15fr;
}

.footer-logo img {
    height: 36px;
    width: auto;
    margin-bottom: var(--space-lg);
    filter: brightness(0) invert(1);
    opacity: 0.95;
}

.footer-desc {
    font-size: var(--fs-small);
    line-height: 1.75;
    max-width: 280px;
    color: rgba(255, 255, 255, 0.72);
}

.footer-heading {
    font-family: var(--font-display);
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-pure-white);
    margin-bottom: var(--space-lg);
}

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

.footer-links a {
    font-size: var(--fs-small);
    color: rgba(255, 255, 255, 0.72);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-pure-white);
}

.footer-contact-info p {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    font-size: var(--fs-small);
    margin-bottom: var(--space-md);
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.72);
}

.footer-contact-info a {
    color: rgba(255, 255, 255, 0.85);
}

.footer-contact-info a:hover {
    color: var(--color-pure-white);
}

.footer-contact-info svg {
    flex-shrink: 0;
    opacity: 0.7;
    margin-top: 3px;
}

.footer-social {
    margin-top: var(--space-lg);
}

.social-label {
    font-size: var(--fs-xs);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: var(--space-md);
}

.social-icons {
    display: flex;
    gap: var(--space-sm);
}

.social-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: rgba(255, 255, 255, 0.82);
    transition: all var(--transition-fast);
}

.social-icon:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-pure-white);
    border-color: rgba(255, 255, 255, 0.35);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-md);
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: var(--fs-xs);
    color: rgba(255, 255, 255, 0.58);
}

.footer-credit a {
    color: var(--color-warm-stone);
    text-shadow: none;
    transition: color var(--transition-fast);
}

.footer-credit a:hover {
    color: var(--color-pure-white);
    text-shadow: none;
}

.back-to-top {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-surface);
    color: var(--color-charcoal);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    box-shadow: var(--shadow-soft);
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition: all var(--transition-base);
    z-index: var(--z-nav);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--color-charcoal);
    color: var(--color-pure-white);
    border-color: var(--color-charcoal);
}

@media (max-width: 1024px) {
    .suppliers-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-grid,
    .footer-grid:has(.footer-contact-col) {
        grid-template-columns: 1fr 1fr;
    }

    .product-carousel-card {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu { display: none; }
    .hamburger { display: flex; }

    .product-carousel-card {
        flex: 0 0 100%;
        min-width: 100%;
    }

    .carousel-prev { left: 4px; }
    .carousel-next { right: 4px; }

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

    .footer-grid,
    .footer-grid:has(.footer-contact-col) {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .hero-title {
        max-width: none;
    }

    .scroll-indicator {
        left: 50%;
        transform: translateX(-50%);
        flex-direction: column;
        bottom: var(--space-lg);
    }

    .scroll-text {
        writing-mode: horizontal-tb;
        transform: none;
    }

    .scroll-line {
        height: 32px;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .hero-cta .btn {
        width: 100%;
    }

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