:root {
    --color-primary: #0066A2;
    --color-primary-dark: #004e7c;
    --color-secondary: #00A8C6;
    --color-accent: #D4A017;
    --color-accent-dark: #b3860e;
    --color-bg: #FDFBF7;
    --color-surface: #ffffff;
    --color-text: #2C2C2C;
    --color-text-muted: #5a5a5a;
    --color-border: #e5e5e5;
    --color-shadow: rgba(0, 0, 0, 0.08);
    --radius: 12px;
    --radius-sm: 8px;
    --max-width: 1200px;
    --header-height: 80px;
    --transition: 0.25s ease;
}

*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Outfit', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
}

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

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

a:hover {
    color: var(--color-primary-dark);
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(253, 251, 247, 0.96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-height);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-text);
}

.logo-mark {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #fff;
    font-weight: 700;
    font-size: 1.4rem;
    border-radius: var(--radius-sm);
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-text strong {
    font-size: 1.1rem;
    font-weight: 700;
}

.logo-text small {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.primary-nav ul {
    display: flex;
    gap: 28px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.primary-nav a {
    font-weight: 500;
    color: var(--color-text);
    position: relative;
}

.primary-nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition);
}

.primary-nav a:hover::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.phone-link {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    color: var(--color-text);
}

.phone-link svg {
    color: var(--color-primary);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 32px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--color-text);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1rem;
    border: 2px solid transparent;
    cursor: pointer;
    transition: background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
}

.btn:hover {
    transform: translateY(-2px);
}

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

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

.btn-outline {
    background: transparent;
    color: #fff;
    border-color: #fff;
}

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

.btn-whatsapp {
    background: #25D366;
    color: #fff;
    border-color: #25D366;
}

.btn-whatsapp:hover {
    background: #1ebc59;
    border-color: #1ebc59;
    color: #fff;
}

.btn-block {
    width: 100%;
}

/* Hero */
.hero {
    position: relative;
    min-height: 720px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: url('../images/hero-mimari-pano.webp') center center / cover no-repeat;
    z-index: 1;
    will-change: transform;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 51, 78, 0.82), rgba(0, 78, 102, 0.72));
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 900px;
    padding: 120px 20px;
}

.hero-eyebrow {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero h1 {
    font-size: clamp(2.2rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.15;
    margin: 0 0 18px;
}

.hero h1 span {
    font-weight: 300;
    font-size: 0.7em;
    display: block;
    margin-top: 8px;
}

.hero-lead {
    font-size: clamp(1.1rem, 2.5vw, 1.35rem);
    font-weight: 300;
    max-width: 760px;
    margin: 0 auto 32px;
    opacity: 0.95;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.hero-trust {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
    margin: 0;
    font-weight: 500;
}

.hero-trust li {
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-trust svg {
    color: var(--color-accent);
}

/* Sections */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 48px;
}

.section-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    margin: 0 0 12px;
    color: var(--color-text);
}

.section-header h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    margin: 14px auto 0;
    border-radius: 2px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin: 0;
}

/* Categories */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.category-card {
    display: block;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 28px;
    text-align: center;
    text-decoration: none;
    color: inherit;
    transition: transform var(--transition), box-shadow var(--transition);
}

.category-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 36px var(--color-shadow);
}

.category-card:hover h3 {
    color: var(--color-primary);
}

.category-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #fff;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 50%;
}

.category-card h3 {
    font-size: 1.15rem;
    margin: 0 0 10px;
}

.category-card p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin: 0;
}

/* Products */
.products {
    background: linear-gradient(180deg, var(--color-bg) 0%, #fff 100%);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
}

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

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 36px var(--color-shadow);
}

.product-image {
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background: #f5f5f5;
}

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

.product-card:hover .product-image img {
    transform: scale(1.06);
}

.product-body {
    padding: 22px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.product-category {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.product-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 10px;
    color: var(--color-text);
}

.product-desc {
    font-size: 0.92rem;
    color: var(--color-text-muted);
    margin: 0 0 14px;
    flex: 1;
}

.product-meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.product-meta span {
    background: #f5f5f5;
    padding: 4px 10px;
    border-radius: 4px;
}

.product-whatsapp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    background: #25D366;
    color: #fff;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
}

.product-whatsapp:hover {
    background: #1ebc59;
    color: #fff;
}

.products-cta {
    text-align: center;
    margin-top: 48px;
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
}

.feature-item {
    background: var(--color-surface);
    border-radius: var(--radius);
    padding: 30px;
    border: 1px solid var(--color-border);
    transition: transform var(--transition), box-shadow var(--transition);
}

.feature-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 28px var(--color-shadow);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #fff;
    border-radius: var(--radius-sm);
    margin-bottom: 18px;
}

.feature-item h3 {
    font-size: 1.15rem;
    margin: 0 0 10px;
}

.feature-item p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin: 0;
}

/* Applications */
.applications {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
}

.applications .section-header h2,
.applications .section-header p {
    color: #fff;
}

.applications .section-header h2::after {
    background: var(--color-accent);
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.application-card {
    display: block;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius);
    padding: 28px;
    backdrop-filter: blur(4px);
    text-decoration: none;
    color: inherit;
    transition: background var(--transition), transform var(--transition);
}

.application-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
}

.application-card h3 {
    font-size: 1.2rem;
    margin: 0 0 10px;
    color: var(--color-accent);
}

.application-card p {
    font-size: 0.95rem;
    margin: 0;
    opacity: 0.92;
}

/* FAQ */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 20px 24px;
    margin-bottom: 14px;
}

.faq-item summary {
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--color-primary);
    transition: transform var(--transition);
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item p {
    color: var(--color-text-muted);
    margin: 14px 0 0;
    padding-top: 14px;
    border-top: 1px solid var(--color-border);
}

/* Quote */
.quote {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
}

.quote-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 56px;
    align-items: start;
}

.quote-info h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.4rem);
    margin: 0 0 14px;
}

.quote-info p {
    color: var(--color-text-muted);
    font-size: 1.05rem;
    margin: 0 0 24px;
}

.quote-benefits {
    list-style: none;
    padding: 0;
    margin: 0;
}

.quote-benefits li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    font-weight: 500;
}

.quote-benefits svg {
    color: var(--color-accent);
    flex-shrink: 0;
}

.quote-form {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 32px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 0.95rem;
}

.form-group label span {
    color: #d32f2f;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    background: #fff;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 162, 0.12);
}

.form-group input:invalid:not(:placeholder-shown),
.form-group select:invalid:not(:placeholder-shown) {
    border-color: #d32f2f;
}

.form-note {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-align: center;
    margin-top: 14px;
}

/* Footer */
.site-footer {
    background: var(--color-text);
    color: rgba(255, 255, 255, 0.85);
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    color: #fff;
    margin-bottom: 14px;
}

.footer-brand .logo-text small {
    color: rgba(255, 255, 255, 0.65);
}

.footer-brand p {
    font-size: 0.95rem;
    line-height: 1.7;
    max-width: 360px;
}

.footer-contact h3,
.footer-hours h3,
.footer-links h3 {
    color: #fff;
    font-size: 1.1rem;
    margin: 0 0 16px;
}

.footer-contact ul,
.footer-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-contact li,
.footer-links li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 0.95rem;
}

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

.footer-contact a:hover,
.footer-links a:hover {
    color: #fff;
}

.footer-links a {
    display: inline-block;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.9rem;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: underline;
}

/* Reveal animation */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Utility */
.text-center {
    text-align: center;
}

/* Responsive */
@media (max-width: 992px) {
    .quote-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .primary-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-bg);
        padding: 24px 20px;
        transform: translateX(100%);
        transition: transform var(--transition);
    }

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

    .primary-nav ul {
        flex-direction: column;
        gap: 18px;
    }

    .primary-nav a {
        font-size: 1.2rem;
    }

    .header-actions .phone-link span {
        display: none;
    }

    .hero {
        min-height: auto;
    }

    .hero-content {
        padding: 80px 20px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

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

    .section {
        padding: 56px 0;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

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

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}