/* ========================================================================
   BUNAREN — Style
   Dark, minimal, high-contrast. One restrained accent.
   ======================================================================== */

/* --- Reset & Base --- */

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-bg: #0a0a0a;
    --color-surface: #111111;
    --color-border: #1e1e1e;
    --color-border-light: #2a2a2a;
    --color-text: #e8e8e8;
    --color-text-muted: #888888;
    --color-text-dim: #555555;
    --color-accent: #c8a86e;
    --color-accent-dim: rgba(200, 168, 110, 0.12);
    --color-white: #ffffff;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
    --container-max: 1120px;
    --section-padding: 140px;
    --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

a {
    color: inherit;
    text-decoration: none;
}

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

/* --- Layout --- */

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 32px;
}

/* --- Typography --- */

h1 {
    font-size: clamp(2.4rem, 5vw, 3.8rem);
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.03em;
    color: var(--color-white);
}

h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.6rem);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.025em;
    color: var(--color-white);
}

h3 {
    font-size: 1.15rem;
    font-weight: 500;
    line-height: 1.35;
    letter-spacing: -0.01em;
    color: var(--color-white);
}

p {
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* --- Section Shared --- */

.section-header {
    margin-bottom: 64px;
}

.section-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 16px;
}

/* ========================================================================
   Header
   ======================================================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 24px 0;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition);
}

.site-header.scrolled {
    border-bottom-color: var(--color-border);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    color: var(--color-white);
}

.nav {
    display: flex;
    gap: 36px;
}

.nav a {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    transition: color var(--transition);
    letter-spacing: 0.01em;
}

.nav a:hover {
    color: var(--color-white);
}

/* Mobile nav toggle */

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 28px;
    height: 20px;
    position: relative;
    flex-direction: column;
    justify-content: space-between;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 1.5px;
    background: var(--color-text);
    transition: var(--transition);
}

/* ========================================================================
   Hero
   ======================================================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 var(--section-padding);
}

.hero-content {
    max-width: 720px;
}

.hero-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 28px;
}

.hero h1 {
    margin-bottom: 28px;
}

.hero-sub {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 48px;
    max-width: 480px;
}

.hero-cta {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    padding: 14px 32px;
    border-radius: 4px;
    transition: background var(--transition), color var(--transition);
}

.hero-cta:hover {
    background: var(--color-accent);
    color: var(--color-bg);
}

/* ========================================================================
   Products
   ======================================================================== */

.products {
    padding: var(--section-padding) 0;
    border-top: 1px solid var(--color-border);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.product-card {
    display: block;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    transition: border-color var(--transition), background var(--transition);
}

.product-card:hover {
    border-color: var(--color-border-light);
    background: var(--color-surface);
}

.product-card-inner {
    padding: 36px;
}

.product-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.product-card-top h3 {
    font-size: 1.3rem;
}

.product-status {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-accent);
    background: var(--color-accent-dim);
    padding: 4px 10px;
    border-radius: 3px;
}

.product-card p {
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.product-link {
    font-size: 0.85rem;
    color: var(--color-text-dim);
    transition: color var(--transition);
}

.product-card:hover .product-link {
    color: var(--color-accent);
}

.product-card--upcoming {
    border-style: dashed;
    border-color: var(--color-border);
    cursor: default;
}

.product-card--upcoming .product-card-top h3 {
    color: var(--color-text-dim);
}

.product-card--upcoming p {
    color: var(--color-text-dim);
}

/* ========================================================================
   Capabilities
   ======================================================================== */

.capabilities {
    padding: var(--section-padding) 0;
    border-top: 1px solid var(--color-border);
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px 64px;
}

.capability-item h3 {
    margin-bottom: 12px;
}

.capability-item p {
    font-size: 0.95rem;
}

/* ========================================================================
   Philosophy
   ======================================================================== */

.philosophy {
    padding: var(--section-padding) 0;
    border-top: 1px solid var(--color-border);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px 64px;
    margin-bottom: 80px;
}

.philosophy-item h3 {
    margin-bottom: 12px;
}

.philosophy-item p {
    font-size: 0.95rem;
}

.philosophy-quote {
    border-left: 2px solid var(--color-accent);
    padding-left: 28px;
}

.philosophy-quote p {
    font-size: clamp(1.3rem, 2.5vw, 1.7rem);
    font-weight: 300;
    font-style: italic;
    color: var(--color-text);
    letter-spacing: -0.01em;
    line-height: 1.5;
}

/* ========================================================================
   Contact
   ======================================================================== */

.contact {
    padding: var(--section-padding) 0;
    border-top: 1px solid var(--color-border);
}

.contact-content {
    max-width: 520px;
}

.contact-intro p {
    font-size: 1rem;
    margin-bottom: 24px;
    max-width: 380px;
}

.contact-email {
    font-family: var(--font-mono);
    font-size: 0.95rem !important;
    color: var(--color-accent) !important;
    letter-spacing: 0.01em;
}

.contact-email a {
    color: inherit;
    text-decoration: none;
    transition: opacity var(--transition);
}

.contact-email a:hover {
    opacity: 0.75;
}

/* ========================================================================
   Footer
   ======================================================================== */

.site-footer {
    padding: 48px 0;
    border-top: 1px solid var(--color-border);
}

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

.footer-logo {
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    color: var(--color-white);
    display: block;
    margin-bottom: 8px;
}

.footer-left p {
    font-size: 0.8rem;
    color: var(--color-text-dim);
}

.footer-right p {
    font-size: 0.8rem;
    color: var(--color-text-dim);
}

/* ========================================================================
   Animations — subtle fade-in on scroll
   ======================================================================== */

.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ========================================================================
   Responsive
   ======================================================================== */

@media (max-width: 900px) {
    :root {
        --section-padding: 100px;
    }

    .products-grid,
    .capabilities-grid,
    .philosophy-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

}

@media (max-width: 640px) {
    :root {
        --section-padding: 72px;
    }

    .container {
        padding: 0 20px;
    }

    .nav {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-bg);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 32px;
        z-index: 99;
    }

    .nav.open {
        display: flex;
    }

    .nav.open a {
        font-size: 1.2rem;
        color: var(--color-text);
    }

    .nav-toggle {
        display: flex;
        z-index: 101;
    }

    .nav-toggle.active span:first-child {
        transform: rotate(45deg) translate(6px, 6px);
    }

    .nav-toggle.active span:last-child {
        transform: rotate(-45deg) translate(1px, -1px);
    }

    .hero {
        min-height: auto;
        padding: 160px 0 var(--section-padding);
    }

    .hero-sub br {
        display: none;
    }

    h1 br {
        display: none;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .product-card-inner {
        padding: 24px;
    }

    .footer-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}