:root {
    --bg: #f5f7fb;
    --surface: #ffffff;
    --text: #1f2937;
    --muted: #6b7280;
    --primary: #0f172a;
    --accent: #0ea5e9;
    --success: #16a34a;
    --border: #e5e7eb;
    --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
    --radius: 16px;
    --container: 1180px;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.5;
}

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

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

.container {
    width: min(var(--container), calc(100% - 32px));
    margin: 0 auto;
}

.site-header {
    background: linear-gradient(135deg, #0f172a, #1e293b);
    color: #fff;
    padding: 20px 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-text h1 {
    margin: 0;
    font-size: 28px;
}

.header-text p {
    margin: 4px 0 0;
    color: rgba(255,255,255,0.8);
}

.header-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
    color: rgba(255,255,255,0.85);
    font-size: 14px;
    text-align: right;
}

.due-logo {
    width: auto;
    max-height: 64px;
    object-fit: contain;
}

.hero {
    padding: 56px 0 24px;
}

.hero h2 {
    margin: 0 0 12px;
    font-size: 36px;
    color: var(--primary);
}

.hero p {
    margin: 0;
    color: var(--muted);
    max-width: 760px;
}

.companies {
    padding: 12px 0 56px;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}

.company-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.company-logo-area {
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.brand-logo {
    max-height: 72px;
    width: auto;
    object-fit: contain;
}

.logo-fallback {
    min-width: 180px;
    min-height: 64px;
    padding: 12px 18px;
    border: 1px dashed var(--border);
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-weight: 700;
    color: var(--primary);
    background: #f8fafc;
}

.company-content h2 {
    margin: 0 0 6px;
    font-size: 24px;
    color: var(--primary);
}

.room {
    margin: 0 0 12px;
    font-weight: 700;
    color: var(--accent);
}

.description {
    margin: 0;
    color: var(--muted);
}

.card-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 18px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 18px;
    border-radius: 10px;
    font-weight: 700;
    transition: 0.2s ease;
}

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

.btn-whatsapp:hover {
    filter: brightness(0.95);
}

.btn-secondary {
    background: #e2e8f0;
    color: var(--primary);
}

.btn-secondary:hover {
    background: #cbd5e1;
}

.site-footer {
    background: #0b1220;
    color: #fff;
    padding: 24px 0;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.footer-brand p {
    margin: 4px 0 0;
    color: rgba(255,255,255,0.75);
}

.footer-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 14px;
    text-align: right;
}

.footer-info a {
    color: #93c5fd;
}

@media (max-width: 900px) {
    .cards-grid {
        grid-template-columns: 1fr;
    }

    .header-info,
    .footer-info {
        text-align: left;
    }

    .hero h2 {
        font-size: 30px;
    }
}

@media (max-width: 640px) {
    .header-brand,
    .footer-brand {
        align-items: flex-start;
        flex-direction: column;
    }

    .hero {
        padding-top: 40px;
    }

    .hero h2 {
        font-size: 26px;
    }

    .company-card {
        padding: 20px;
    }
}