/* Subunternehmerbörse — CSS */

:root {
    --sub-primary: #1a365d;
    --sub-accent: #e67e22;
    --sub-accent-hover: #d35400;
    --sub-gray-50: #f7fafc;
    --sub-gray-100: #edf2f7;
    --sub-gray-200: #e2e8f0;
    --sub-gray-500: #718096;
    --sub-gray-700: #4a5568;
    --sub-gray-900: #1a202c;
    --sub-radius: 8px;
    --sub-nav-height: 64px;
}

#sub-app-root, #sub-app-root * { box-sizing: border-box; }
#sub-app-root {
    font-family: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--sub-gray-900);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    background: var(--sub-gray-50);
    margin: 0; padding: 0;
}
#sub-app-root h1, #sub-app-root h2, #sub-app-root h3, #sub-app-root p { margin: 0 0 0 0; }

.sub-container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }

/* Nav */
.sub-nav { position: sticky; top: 0; z-index: 1000; background: #fff; border-bottom: 1px solid var(--sub-gray-200); box-shadow: 0 1px 3px rgba(0,0,0,0.06); }
.sub-nav-inner { max-width: 1200px; margin: 0 auto; padding: 0 16px; display: flex; align-items: center; justify-content: space-between; height: var(--sub-nav-height); }
.sub-nav-links { display: none; align-items: center; gap: 4px; }
.sub-nav-link { padding: 8px 14px; color: var(--sub-gray-700); text-decoration: none; font-size: 14px; font-weight: 500; border-radius: 6px; }
.sub-nav-link:hover { color: var(--sub-primary); background: var(--sub-gray-50); }
.sub-btn-nav { display: inline-block; padding: 8px 18px; background: var(--sub-accent); color: #fff !important; text-decoration: none; font-size: 14px; font-weight: 600; border-radius: 6px; margin-left: 8px; }
.sub-btn-nav:hover { background: var(--sub-accent-hover); }
.sub-hamburger { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; border: none; background: transparent; font-size: 24px; color: var(--sub-primary); cursor: pointer; }

/* Mobile menu */
.sub-mobile-menu { display: flex; flex-direction: column; background: #fff; border-top: 1px solid var(--sub-gray-200); padding: 8px 16px 16px; }
.sub-mobile-link { padding: 12px 0; color: var(--sub-gray-700); text-decoration: none; font-size: 15px; font-weight: 500; border-bottom: 1px solid var(--sub-gray-100); }
.sub-mobile-cta { margin-top: 8px; text-align: center; background: var(--sub-accent); color: #fff !important; padding: 12px; border-radius: 6px; font-weight: 600; border: none; }

/* Hero */
.sub-hero { background: linear-gradient(135deg, var(--sub-primary) 0%, #2a4a7f 100%); padding: 60px 0; text-align: center; }
.sub-hero-title { font-size: 28px; font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 16px; }
.sub-hero-sub { font-size: 16px; color: rgba(255,255,255,0.8); max-width: 560px; margin: 0 auto 28px; line-height: 1.6; }
.sub-hero-buttons { display: flex; flex-direction: column; gap: 12px; align-items: center; }

/* Sections */
.sub-section { padding: 50px 0; }
.sub-section-title { text-align: center; font-size: 22px; color: var(--sub-primary); margin-bottom: 30px; font-weight: 700; }

/* Grids */
.sub-grid-2, .sub-grid-3, .sub-grid-4 { display: grid; gap: 16px; }
.sub-grid-2 { grid-template-columns: 1fr; }
.sub-grid-3 { grid-template-columns: 1fr; }
.sub-grid-4 { grid-template-columns: repeat(2, 1fr); }

/* Trade cards */
.sub-trade-card { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 16px 12px; background: #fff; border-radius: var(--sub-radius); border: 1px solid var(--sub-gray-200); text-decoration: none; transition: all 0.15s; }
.sub-trade-card:hover { border-color: var(--sub-accent); box-shadow: 0 4px 16px rgba(0,0,0,0.1); transform: translateY(-2px); }

/* Filter */
.sub-filter-bar { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; padding: 16px; background: #fff; border-radius: var(--sub-radius); border: 1px solid var(--sub-gray-200); }
.sub-filter-select, .sub-filter-input { width: 100%; padding: 10px 12px; border: 1px solid var(--sub-gray-200); border-radius: 6px; font-size: 14px; font-family: inherit; box-sizing: border-box; }

/* Results */
.sub-results-grid { display: grid; gap: 12px; grid-template-columns: 1fr; }

/* Role cards */
.sub-role-card { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 24px 16px; border: 2px solid var(--sub-gray-200); border-radius: 10px; cursor: pointer; transition: all 0.15s; text-align: center; }
.sub-role-card:hover { border-color: var(--sub-accent); background: #fffaf5; }

/* Pricing */
.sub-pricing-grid { display: grid; gap: 16px; grid-template-columns: 1fr; margin-bottom: 40px; }

/* Footer */
.sub-footer { background: var(--sub-gray-100); padding: 24px 0; margin-top: 40px; border-top: 1px solid var(--sub-gray-200); }
.sub-footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }

/* Spinner */
.sub-spinner-ring { width: 36px; height: 36px; border: 3px solid var(--sub-gray-200); border-top-color: var(--sub-accent); border-radius: 50%; animation: sub-spin 0.8s linear infinite; display: inline-block; }
@keyframes sub-spin { to { transform: rotate(360deg); } }

/* ─── Tablet (640px+) ─── */
@media (min-width: 640px) {
    .sub-container { padding: 0 24px; }
    .sub-hero { padding: 80px 0; }
    .sub-hero-title { font-size: 36px; }
    .sub-hero-buttons { flex-direction: row; }
    .sub-grid-2 { grid-template-columns: repeat(2, 1fr); }
    .sub-grid-3 { grid-template-columns: repeat(2, 1fr); }
    .sub-grid-4 { grid-template-columns: repeat(3, 1fr); }
    .sub-pricing-grid { grid-template-columns: repeat(2, 1fr); }
    .sub-results-grid { grid-template-columns: repeat(2, 1fr); }
    .sub-filter-bar { flex-direction: row; }
    .sub-filter-select, .sub-filter-input { width: auto; flex: 1; min-width: 0; }
}

/* ─── Desktop (1024px+) ─── */
@media (min-width: 1024px) {
    .sub-hamburger { display: none; }
    .sub-nav-links { display: flex; }
    .sub-mobile-menu { display: none !important; }
    .sub-hero { padding: 100px 0; }
    .sub-hero-title { font-size: 44px; }
    .sub-grid-3 { grid-template-columns: repeat(3, 1fr); }
    .sub-grid-4 { grid-template-columns: repeat(4, 1fr); }
    .sub-pricing-grid { grid-template-columns: repeat(4, 1fr); }
}

/* PWA Safe Area */
@supports (padding-top: env(safe-area-inset-top)) {
    .sub-nav { padding-top: env(safe-area-inset-top); }
}

/* Touch targets */
@media (hover: none) and (pointer: coarse) {
    .sub-nav-link, .sub-mobile-link, .sub-trade-card, .sub-role-card { min-height: 44px; }
}