/* ================================
   Crest Hill Commercial Epoxy
   main.css — single source of truth
   ================================ */

:root {
    --color-primary: #1f3a93;       /* industrial blue */
    --color-primary-dark: #162a6a;
    --color-accent: #e67e22;        /* CTA orange */
    --color-accent-dark: #c4651a;
    --color-text: #1a1a1a;
    --color-text-soft: #4a4a4a;
    --color-bg: #ffffff;
    --color-bg-soft: #f6f7f9;
    --color-border: #e0e3e8;
    --max-width: 1100px;
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --radius: 6px;
    --shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, "Helvetica Neue", Arial, sans-serif;
    font-size: 17px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

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

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

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

/* ============ Header ============ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow);
}
.site-header .container {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    height: 70px;
}
.logo {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--color-primary);
    text-decoration: none;
    line-height: 1.15;
}
.logo span {
    display: block;
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--color-text-soft);
}
.primary-nav {
    margin-left: auto;
    display: flex;
    gap: var(--space-md);
    align-items: center;
}
.primary-nav a {
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.95rem;
    text-decoration: none;
}
.primary-nav a:hover { color: var(--color-primary); }
.primary-nav .has-dropdown { position: relative; }
.primary-nav .dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-xs) 0;
    min-width: 240px;
    box-shadow: var(--shadow);
}
.primary-nav .has-dropdown:hover .dropdown,
.primary-nav .has-dropdown:focus-within .dropdown {
    display: block;
}
.primary-nav .dropdown a {
    display: block;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    white-space: nowrap;
}
.phone-cta {
    background: var(--color-accent);
    color: #fff !important;
    padding: 0.55rem 1rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    white-space: nowrap;
}
.phone-cta:hover { background: var(--color-accent-dark); text-decoration: none; }
.menu-toggle {
    display: none;
    background: none;
    border: 1px solid var(--color-border);
    padding: 0.4rem 0.7rem;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 1.4rem;
    line-height: 1;
}

@media (max-width: 900px) {
    .primary-nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0; right: 0;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        flex-direction: column;
        gap: 0;
        padding: var(--space-sm) 0;
    }
    .primary-nav.is-open { display: flex; }
    .primary-nav a { padding: 0.65rem var(--space-md); width: 100%; }
    .primary-nav .has-dropdown .dropdown {
        position: static;
        border: none;
        box-shadow: none;
        padding-left: var(--space-md);
    }
    .primary-nav .has-dropdown:hover .dropdown { display: block; }
    .menu-toggle { display: inline-block; margin-left: auto; }
    .phone-cta { display: none; }
    .phone-cta-mobile { display: inline-block; }
}

/* ============ Hero ============ */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: #fff;
    padding: var(--space-xl) 0;
    text-align: center;
}
.hero h1 {
    font-size: 2.4rem;
    font-weight: 800;
    margin-bottom: var(--space-sm);
    letter-spacing: -0.02em;
    line-height: 1.15;
}
.hero p.lead {
    font-size: 1.15rem;
    max-width: 720px;
    margin: 0 auto var(--space-md);
    color: rgba(255, 255, 255, 0.92);
}
.hero .cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    justify-content: center;
    margin-top: var(--space-md);
}
@media (max-width: 600px) {
    .hero h1 { font-size: 1.7rem; }
    .hero p.lead { font-size: 1rem; }
}

/* ============ Buttons ============ */
.btn {
    display: inline-block;
    padding: 0.85rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none !important;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform 0.06s ease, background 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
    background: var(--color-accent);
    color: #fff !important;
}
.btn-primary:hover { background: var(--color-accent-dark); }
.btn-secondary {
    background: transparent;
    color: #fff !important;
    border-color: #fff;
}
.btn-secondary:hover { background: rgba(255, 255, 255, 0.12); }
.btn-outline {
    background: transparent;
    color: var(--color-primary) !important;
    border-color: var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary); color: #fff !important; }

/* ============ Sections ============ */
section { padding: var(--space-lg) 0; }
section.alt { background: var(--color-bg-soft); }

h1 { font-size: 2.2rem; line-height: 1.2; margin-bottom: var(--space-md); }
h2 {
    font-size: 1.65rem;
    line-height: 1.25;
    margin: var(--space-lg) 0 var(--space-sm);
    color: var(--color-primary);
    letter-spacing: -0.01em;
}
h3 {
    font-size: 1.2rem;
    line-height: 1.3;
    margin: var(--space-md) 0 var(--space-xs);
    color: var(--color-primary-dark);
}
p { margin-bottom: var(--space-sm); color: var(--color-text-soft); }
ul, ol { padding-left: 1.5rem; margin-bottom: var(--space-sm); color: var(--color-text-soft); }
li { margin-bottom: 0.4rem; }
strong { color: var(--color-text); }

@media (max-width: 600px) {
    h1 { font-size: 1.6rem; }
    h2 { font-size: 1.35rem; }
}

/* ============ Service Grid (homepage) ============ */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-md);
}
.service-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-md);
    transition: box-shadow 0.15s ease;
}
.service-card:hover { box-shadow: var(--shadow); }
.service-card h3 { margin-top: 0; }
.service-card a.read-more {
    display: inline-block;
    margin-top: var(--space-xs);
    font-weight: 600;
    color: var(--color-primary);
}

/* ============ FAQ (uses native <details>) ============ */
.faq details {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    margin-bottom: var(--space-xs);
    background: var(--color-bg);
}
.faq summary {
    cursor: pointer;
    padding: 0.9rem 1rem;
    font-weight: 600;
    color: var(--color-primary);
    font-size: 1.05rem;
    list-style: none;
    position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
    content: "+";
    position: absolute;
    right: 1rem;
    font-size: 1.4rem;
    color: var(--color-text-soft);
}
.faq details[open] summary::after { content: "−"; }
.faq details[open] summary { border-bottom: 1px solid var(--color-border); }
.faq details > p {
    padding: 0.9rem 1rem;
    margin: 0;
}

/* ============ Forms ============ */
form.lead-form {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-md);
    box-shadow: var(--shadow);
    max-width: 600px;
    margin: var(--space-md) auto 0;
}
form.lead-form .field { margin-bottom: var(--space-sm); }
form.lead-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.3rem;
    color: var(--color-text);
    font-size: 0.92rem;
}
form.lead-form input,
form.lead-form select,
form.lead-form textarea {
    width: 100%;
    padding: 0.7rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    background: var(--color-bg);
}
form.lead-form input:focus,
form.lead-form select:focus,
form.lead-form textarea:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 0;
    border-color: var(--color-primary);
}
form.lead-form textarea { min-height: 100px; resize: vertical; }
form.lead-form .submit-row { margin-top: var(--space-md); text-align: center; }
form.lead-form button[type="submit"] {
    background: var(--color-accent);
    color: #fff;
    border: none;
    padding: 0.85rem 2rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 1.05rem;
    cursor: pointer;
}
form.lead-form button[type="submit"]:hover { background: var(--color-accent-dark); }
form.lead-form .form-note {
    font-size: 0.85rem;
    color: var(--color-text-soft);
    text-align: center;
    margin-top: var(--space-sm);
}

/* ============ Service Area List ============ */
.service-area-list ul {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-xs);
}
.service-area-list li {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0.7rem 1rem;
}

/* ============ Footer ============ */
.site-footer {
    background: #1a1a1a;
    color: #c4c4c4;
    padding: var(--space-lg) 0 var(--space-md);
    margin-top: var(--space-xl);
    font-size: 0.92rem;
}
.site-footer a { color: #fff; }
.site-footer h4 {
    color: #fff;
    margin-bottom: var(--space-xs);
    font-size: 1rem;
}
.site-footer .footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-md);
}
.site-footer .footer-grid p { color: #c4c4c4; }
.site-footer .footer-grid ul {
    list-style: none;
    padding: 0;
    color: #c4c4c4;
}
.site-footer .footer-grid li { margin-bottom: 0.3rem; }
.site-footer .copyright {
    border-top: 1px solid #333;
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    text-align: center;
    color: #888;
    font-size: 0.85rem;
}

/* ============ Utility ============ */
.text-center { text-align: center; }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--color-primary);
    color: #fff;
    padding: 0.5rem 1rem;
    z-index: 1000;
}
.skip-link:focus { left: 0; }