/* ==========================================================================
   AUSTERE MAIL - BESPOKE DESIGN SYSTEM
   Theme: Minimalist / Neo-Corporate (60-30-10 Rule)
   Colors: Off-White (60), Deep Slate (30), Sharp Blue Accent (10)
   ========================================================================== */

:root {
    --color-bg: #F8F9FA;
    --color-text: #111827;
    --color-gray: #6B7280;
    --color-border: #E5E7EB;
    --color-accent: #2563EB;
    --color-accent-hover: #1D4ED8;
    
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --spacing-sm: 0.5rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 3rem;
    --spacing-xl: 6rem;
}

/* RESET */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s ease;
}
a:hover {
    color: var(--color-accent-hover);
}
img, svg {
    max-width: 100%;
    display: block;
}

/* LAYOUT */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}
.border-top {
    border-top: 2px solid var(--color-text);
}
main {
    flex: 1;
}

/* MANDATORY DOMAIN BANNER STYLING - Adapted for Austere Theme */
.domain-sale-banner {
    position: relative;
    z-index: 9999;
    width: 100%;
    color: #ffffff;
    /* Adapted to stark slate/black gradient to match the austere brand */
    background: radial-gradient(circle at 15% 50%, rgba(37, 99, 235, 0.15), transparent 34%), 
                linear-gradient(100deg, #111827 0%, #1F2937 58%, #030712 100%);
    border-bottom: 2px solid var(--color-text);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    font-family: var(--font-main);
}
.domain-sale-banner__content {
    width: min(1200px, calc(100% - 32px));
    min-height: 76px;
    margin: 0 auto;
    padding: 12px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.domain-sale-banner__text {
    display: grid;
    gap: 4px;
    line-height: 1.35;
}
.domain-sale-banner__text strong {
    font-size: clamp(1rem, 2vw, 1.2rem);
    letter-spacing: -0.01em;
    font-weight: 800;
}
.domain-sale-banner__text span {
    color: rgba(255, 255, 255, 0.74);
    font-size: 0.92rem;
}
.domain-sale-banner__button {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    min-height: 46px;
    padding: 0 20px;
    color: #ffffff;
    background: var(--color-accent);
    border: 2px solid transparent;
    border-radius: 0px; /* Austere square edges */
    font-size: 0.94rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: transform 160ms ease, background 160ms ease;
}
.domain-sale-banner__button:hover,
.domain-sale-banner__button:focus-visible {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    outline: none;
}

@media (max-width: 680px) {
    .domain-sale-banner__content {
        min-height: auto;
        padding: 14px 0;
        align-items: stretch;
        flex-direction: column;
        gap: 12px;
    }
    .domain-sale-banner__button {
        width: 100%;
    }
}

/* HEADER */
.site-header {
    border-bottom: 2px solid var(--color-text);
    background: var(--color-bg);
}
.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: -0.02em;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}
.main-nav a {
    color: var(--color-text);
    font-weight: 600;
    font-size: 0.95rem;
}
.main-nav a:hover, .main-nav a.active {
    color: var(--color-accent);
}
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}
.menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--color-text);
    transition: 0.3s;
}

/* UI COMPONENTS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s ease;
}
.btn-primary {
    background-color: var(--color-accent);
    color: #fff;
}
.btn-primary:hover {
    background-color: var(--color-accent-hover);
    color: #fff;
}
.btn-secondary {
    background-color: var(--color-text);
    color: #fff;
}
.btn-secondary:hover {
    background-color: #000;
    color: #fff;
}
.btn-outline {
    border-color: var(--color-text);
    color: var(--color-text);
    background: transparent;
}
.btn-outline:hover {
    background-color: var(--color-text);
    color: #fff;
}

/* HERO SECTION */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    padding: var(--spacing-xl) var(--spacing-md);
}
.hero-content h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
}
.hero-content p {
    font-size: 1.2rem;
    color: var(--color-gray);
    margin-bottom: var(--spacing-lg);
    max-width: 480px;
}
.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* FEATURES SECTION */
.features {
    padding: var(--spacing-xl) 0;
    background-color: #fff;
}
.feature-card {
    padding: var(--spacing-lg);
    border: 2px solid var(--color-text);
    background: var(--color-bg);
}
.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}
.feature-card p {
    color: var(--color-gray);
}

/* INNER PAGES */
.page-content {
    padding: var(--spacing-xl) var(--spacing-md);
}
.prose {
    max-width: 680px;
    margin: 0 auto;
}
.prose h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
}
.prose h2 {
    font-size: 1.75rem;
    margin: var(--spacing-lg) 0 var(--spacing-sm);
}
.prose p {
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    color: var(--color-gray);
}
.prose .lead {
    font-size: 1.4rem;
    color: var(--color-text);
    font-weight: 600;
}
.prose blockquote {
    border-left: 4px solid var(--color-accent);
    padding-left: var(--spacing-md);
    font-style: italic;
    margin: var(--spacing-lg) 0;
    color: var(--color-text);
}

/* FORMS */
.form-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}
.contact-form {
    border: 2px solid var(--color-text);
    padding: var(--spacing-lg);
    background: #fff;
}
.form-group {
    margin-bottom: var(--spacing-md);
}
.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}
.form-group input, .form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--color-border);
    font-family: var(--font-main);
    background: var(--color-bg);
    transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--color-text);
}

/* FOOTER */
.site-footer {
    padding: var(--spacing-lg) 0;
    background: var(--color-bg);
}
.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}
.footer-brand p {
    font-size: 0.9rem;
    color: var(--color-gray);
}
.footer-links {
    display: flex;
    gap: var(--spacing-md);
}
.footer-links a {
    color: var(--color-gray);
    font-size: 0.9rem;
    font-weight: 600;
}

/* 404 PAGE */
.error-page {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.error-code {
    font-size: 8rem;
    line-height: 1;
    color: var(--color-text);
    margin-bottom: 0;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero {
        grid-template-columns: 1fr;
        padding-top: var(--spacing-lg);
    }
    .hero-visual {
        grid-row: 1;
    }
    .form-layout {
        grid-template-columns: 1fr;
    }
    .menu-toggle {
        display: flex;
    }
    .main-nav {
        display: none;
        position: absolute;
        top: 80px; /* Below header */
        left: 0;
        width: 100%;
        background: var(--color-bg);
        border-bottom: 2px solid var(--color-text);
        flex-direction: column;
        padding: var(--spacing-md);
        z-index: 50;
    }
    .main-nav.active {
        display: flex;
    }
}