/* ============================================================
   Oasis Engineering — Energy Division
   Mobile-first responsive stylesheet
   Colors, typography, and patterns match the PayApp design system
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
    --blue:         #2c5fa8;
    --blue-light:   #e8eff8;
    --blue-dark:    #1e3f6f;
    --blue-darker:  #122b52;
    --green:        #1a6b4a;
    --green-light:  #e8f5ee;
    --sand:         #f7f3ed;
    --sand-dark:    #e8e0d4;
    --charcoal:     #1a1a1a;
    --slate:        #4a5568;
    --slate-light:  #718096;
    --white:        #ffffff;
    --border:       #e2e8f0;
    --radius:       12px;
    --radius-sm:    8px;
    --radius-lg:    16px;
    --shadow:       0 1px 3px rgba(0,0,0,0.06);
    --shadow-md:    0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg:    0 8px 30px rgba(0,0,0,0.1);
    --font-body:    'DM Sans', system-ui, -apple-system, sans-serif;
    --font-heading: 'Fraunces', Georgia, serif;
    --container:    1140px;
    --transition:   0.2s ease;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-body);
    color: var(--charcoal);
    background: var(--sand);
    line-height: 1.65;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--blue-dark); }
ul { list-style: none; }
h1, h2, h3, h4, h5 { font-family: var(--font-heading); line-height: 1.25; color: var(--charcoal); }
h1 { font-size: 2.25rem; font-weight: 600; }
h2 { font-size: 1.75rem; font-weight: 600; }
h3 { font-size: 1.25rem; font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; }
p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* --- Skip Link --- */
.skip-link {
    position: absolute; top: -100px; left: 0;
    background: var(--blue); color: white;
    padding: 8px 16px; z-index: 9999;
    font-size: 14px;
}
.skip-link:focus { top: 0; }

/* --- Utility --- */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 20px; }
.text-center { text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.hide-mobile { display: none; }
@media (min-width: 768px) { .hide-mobile { display: inline; } }
.show-mobile { display: inline; }
@media (min-width: 768px) { .show-mobile { display: none; } }

/* --- Buttons --- */
.btn {
    display: inline-block;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 14px;
    padding: 13px 28px;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
    line-height: 1.4;
}
.btn-primary {
    background: var(--blue);
    color: var(--white);
    border-color: var(--blue);
}
.btn-primary:hover { background: var(--blue-dark); border-color: var(--blue-dark); color: var(--white); }
.btn-secondary {
    background: var(--white);
    color: var(--blue);
    border-color: var(--blue);
}
.btn-secondary:hover { background: var(--blue); color: var(--white); }
.btn-outline-light {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.4);
}
.btn-outline-light:hover { background: rgba(255,255,255,0.1); color: var(--white); border-color: rgba(255,255,255,0.7); }
.btn-lg { padding: 16px 36px; font-size: 15px; }
.btn-sm { padding: 10px 20px; font-size: 13px; }
.btn-group { display: flex; gap: 12px; flex-wrap: wrap; }

/* --- Top Bar --- */
.top-bar {
    background: var(--blue-darker);
    color: rgba(255,255,255,0.8);
    font-size: 12px;
    padding: 8px 0;
}
.top-bar-inner {
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
}
.top-bar a { color: rgba(255,255,255,0.9); }
.top-bar a:hover { color: white; }
.top-bar-divider { opacity: 0.3; }

/* --- Site Header --- */
.site-header {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
    gap: 16px;
}
.header-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--charcoal);
    flex-shrink: 0;
}
.header-logo { border-radius: 8px; }
.header-text { display: flex; flex-direction: column; }
.header-title {
    font-family: var(--font-heading);
    font-size: 17px;
    font-weight: 600;
    line-height: 1.2;
}
.header-sub {
    font-size: 11px;
    color: var(--slate-light);
    font-weight: 500;
    letter-spacing: 0.3px;
}
.main-nav { display: none; }
.nav-list {
    display: flex;
    gap: 2px;
    align-items: center;
}
.nav-link {
    font-size: 13px;
    font-weight: 500;
    color: var(--slate);
    padding: 8px 10px;
    border-radius: 6px;
    transition: all var(--transition);
    white-space: nowrap;
}
.nav-link:hover { color: var(--blue); background: var(--blue-light); }
.nav-link.active { color: var(--blue); font-weight: 600; }
.header-cta { display: none; }

@media (min-width: 1024px) {
    .main-nav { display: flex; }
    .header-cta {
        display: inline-block;
        background: var(--blue);
        color: var(--white);
        padding: 9px 20px;
        border-radius: var(--radius-sm);
        font-size: 13px;
        font-weight: 600;
        flex-shrink: 0;
        transition: background var(--transition);
    }
    .header-cta:hover { background: var(--blue-dark); color: white; }
    .mobile-toggle { display: none; }
}

/* --- Mobile Toggle --- */
.mobile-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 200;
}
.mobile-toggle span {
    width: 22px;
    height: 2px;
    background: var(--charcoal);
    border-radius: 2px;
    transition: all 0.3s;
}
.mobile-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-toggle.open span:nth-child(2) { opacity: 0; }
.mobile-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

@media (min-width: 1024px) {
    .mobile-toggle { display: none; }
}

/* --- Mobile Nav Overlay --- */
.mobile-nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 150;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}
.mobile-nav-overlay.open {
    opacity: 1;
    pointer-events: auto;
}
.mobile-nav {
    position: absolute;
    top: 0;
    right: 0;
    width: 280px;
    height: 100%;
    background: var(--white);
    padding: 80px 24px 32px;
    transform: translateX(100%);
    transition: transform 0.3s;
    overflow-y: auto;
}
.mobile-nav-overlay.open .mobile-nav { transform: translateX(0); }
.mobile-nav-link {
    display: block;
    padding: 14px 0;
    font-size: 16px;
    font-weight: 500;
    color: var(--charcoal);
    border-bottom: 1px solid var(--border);
}
.mobile-nav-link:hover { color: var(--blue); }
.mobile-nav-cta {
    display: block;
    margin-top: 20px;
    text-align: center;
    width: 100%;
}
.mobile-nav-contact {
    margin-top: 24px;
    font-size: 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.mobile-nav-contact a { color: var(--slate); }

/* --- Hero Section --- */
.hero {
    background: linear-gradient(135deg, var(--blue-darker) 0%, var(--blue) 100%);
    color: var(--white);
    padding: 64px 0 56px;
    position: relative;
    overflow: hidden;
}
.hero::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(255,255,255,0.04) 0%, transparent 70%);
    pointer-events: none;
}
.hero-inner {
    position: relative;
    z-index: 1;
    max-width: 720px;
}
.hero-badge {
    display: inline-block;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.2);
    color: rgba(255,255,255,0.9);
    font-size: 12px;
    font-weight: 600;
    padding: 5px 14px;
    border-radius: 20px;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}
.hero h1 {
    color: var(--white);
    font-size: 2rem;
    margin-bottom: 16px;
    line-height: 1.2;
}
.hero p {
    font-size: 16px;
    color: rgba(255,255,255,0.85);
    max-width: 560px;
    line-height: 1.7;
    margin-bottom: 28px;
}
.hero .btn-group { margin-top: 8px; }

@media (min-width: 768px) {
    .hero { padding: 80px 0 72px; }
    .hero h1 { font-size: 2.75rem; }
    .hero p { font-size: 17px; }
}

/* --- Section Styling --- */
.section {
    padding: 56px 0;
}
.section-alt { background: var(--white); }
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 40px;
}
.section-header h2 { margin-bottom: 12px; }
.section-header p {
    color: var(--slate);
    font-size: 15px;
    line-height: 1.7;
}
.section-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--blue);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
}

@media (min-width: 768px) {
    .section { padding: 72px 0; }
}

/* --- Cards --- */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow);
    transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}
.card-flat {
    box-shadow: none;
    border: 1px solid var(--border);
}
.card-flat:hover {
    box-shadow: var(--shadow);
    border-color: transparent;
}

/* --- Service Cards Grid --- */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}
@media (min-width: 640px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
    .services-grid { grid-template-columns: repeat(3, 1fr); }
}
.service-card {
    padding: 24px;
}
.service-card .card-icon {
    width: 44px;
    height: 44px;
    background: var(--blue-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    color: var(--blue);
}
.service-card h3 {
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
}
.service-card p {
    font-size: 14px;
    color: var(--slate);
    line-height: 1.6;
}
.service-card .card-link {
    display: inline-block;
    margin-top: 12px;
    font-size: 13px;
    font-weight: 600;
    color: var(--blue);
}
.service-card .card-link:hover { text-decoration: underline; }

/* --- Service Category Sections --- */
.service-category {
    margin-bottom: 48px;
    scroll-margin-top: 100px;
}
.service-category:last-child { margin-bottom: 0; }
.category-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 24px;
}
.category-icon {
    width: 48px;
    height: 48px;
    background: var(--blue-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue);
    flex-shrink: 0;
}
.category-header h2 {
    font-size: 1.5rem;
}

/* --- Service Detail List --- */
.service-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}
@media (min-width: 640px) {
    .service-list { grid-template-columns: repeat(2, 1fr); }
}
.service-item {
    padding: 20px;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: all var(--transition);
}
.service-item:hover {
    border-color: var(--blue);
    box-shadow: var(--shadow);
}
.service-item h4 {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    color: var(--charcoal);
    margin-bottom: 6px;
}
.service-item p {
    font-size: 13px;
    color: var(--slate);
    line-height: 1.6;
}

/* --- Estimator Section --- */
.estimator-section {
    background: linear-gradient(135deg, var(--blue-darker) 0%, var(--blue) 100%);
    color: var(--white);
    padding: 56px 0;
}
.estimator-section h2 { color: var(--white); }
.estimator-section p { color: rgba(255,255,255,0.85); }
.estimator-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    align-items: center;
}
@media (min-width: 768px) {
    .estimator-grid { grid-template-columns: 1fr 1fr; }
    .estimator-section { padding: 72px 0; }
}
.estimator-features {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin: 24px 0;
}
.estimator-feature {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14px;
    color: rgba(255,255,255,0.9);
}
.estimator-feature .feat-icon {
    width: 24px;
    height: 24px;
    background: rgba(255,255,255,0.15);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 1px;
    font-size: 12px;
}
.estimator-preview {
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
}
.estimator-preview .preview-badge {
    display: inline-block;
    background: rgba(40,167,69,0.2);
    color: #6ee7a0;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 16px;
}
.estimator-preview h3 {
    color: white;
    font-family: var(--font-body);
    margin-bottom: 8px;
}
.estimator-preview p {
    font-size: 13px;
    color: rgba(255,255,255,0.65);
}

/* --- Trust / Stats Bar --- */
.trust-bar {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 24px 0;
}
.trust-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    text-align: center;
}
@media (min-width: 768px) {
    .trust-grid { grid-template-columns: repeat(4, 1fr); }
}
.trust-item strong {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--blue);
    font-weight: 600;
}
.trust-item span {
    font-size: 12px;
    color: var(--slate);
    font-weight: 500;
}

/* --- Process Steps --- */
.process-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    counter-reset: process-step;
}
@media (min-width: 640px) {
    .process-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
    .process-grid { grid-template-columns: repeat(4, 1fr); }
}
.process-step {
    text-align: center;
    padding: 24px 16px;
    counter-increment: process-step;
}
.process-step .step-num {
    width: 40px;
    height: 40px;
    background: var(--blue-light);
    color: var(--blue);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    margin-bottom: 14px;
}
.process-step h4 {
    font-family: var(--font-body);
    font-size: 15px;
    margin-bottom: 8px;
}
.process-step p {
    font-size: 13px;
    color: var(--slate);
    line-height: 1.6;
}

/* --- Who We Serve / Audience --- */
.audience-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
@media (min-width: 768px) {
    .audience-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) {
    .audience-grid { grid-template-columns: repeat(4, 1fr); }
}
.audience-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    background: var(--white);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition);
}
.audience-item:hover {
    border-color: var(--blue);
    color: var(--blue);
}
.audience-item .aud-icon {
    width: 32px;
    height: 32px;
    background: var(--blue-light);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 14px;
}

/* --- Service Areas --- */
.areas-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}
@media (min-width: 640px) {
    .areas-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
    .areas-grid { grid-template-columns: repeat(3, 1fr); }
}
.area-card h3 {
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 600;
    color: var(--blue);
    margin-bottom: 10px;
}
.area-card .city-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.area-card .city-tag {
    background: var(--blue-light);
    color: var(--blue-dark);
    font-size: 12px;
    font-weight: 500;
    padding: 4px 10px;
    border-radius: 14px;
}

/* --- FAQ Accordion --- */
.faq-list {
    max-width: 760px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.faq-item {
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: border-color var(--transition);
}
.faq-item.open { border-color: var(--blue); }
.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    color: var(--charcoal);
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    font-family: var(--font-body);
    gap: 12px;
}
.faq-question:hover { color: var(--blue); }
.faq-toggle {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    background: var(--blue-light);
    color: var(--blue);
    font-size: 16px;
    flex-shrink: 0;
    transition: transform 0.3s;
}
.faq-item.open .faq-toggle { transform: rotate(45deg); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-item.open .faq-answer {
    max-height: 500px;
}
.faq-answer-inner {
    padding: 0 20px 18px;
    font-size: 14px;
    color: var(--slate);
    line-height: 1.7;
}

/* --- CTA Section --- */
.cta-section {
    background: var(--blue);
    color: var(--white);
    padding: 48px 0;
    text-align: center;
}
.cta-section h2 { color: white; margin-bottom: 12px; }
.cta-section p { color: rgba(255,255,255,0.85); margin-bottom: 24px; max-width: 520px; margin-left: auto; margin-right: auto; }
.cta-section .btn-group { justify-content: center; }

@media (min-width: 768px) {
    .cta-section { padding: 64px 0; }
}

/* --- Contact / Form --- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
}
@media (min-width: 768px) {
    .contact-grid { grid-template-columns: 1fr 1fr; }
}
.form-group { margin-bottom: 16px; }
.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--charcoal);
    margin-bottom: 6px;
}
.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--charcoal);
    background: var(--white);
    transition: border-color var(--transition);
    outline: none;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(44,95,168,0.1);
}
.form-textarea { min-height: 120px; resize: vertical; }
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.form-hint {
    font-size: 12px;
    color: var(--slate-light);
    margin-top: 4px;
}

/* --- Invoice Lookup --- */
.invoice-lookup { margin-top: 20px; }
.invoice-lookup label,
.footer-invoice-lookup label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--slate);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}
.lookup-row {
    display: flex;
    gap: 8px;
}
.lookup-row input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 14px;
    outline: none;
}
.lookup-row input:focus { border-color: var(--blue); }
.lookup-row button {
    background: var(--blue);
    color: var(--white);
    border: none;
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    font-family: var(--font-body);
    transition: background var(--transition);
}
.lookup-row button:hover { background: var(--blue-dark); }

/* --- Estimator Embed --- */
.estimator-frame-wrap {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}
.estimator-frame-wrap iframe {
    width: 100%;
    min-height: 1200px;
    border: none;
    display: block;
}

/* --- About Page --- */
.about-values {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 32px;
}
@media (min-width: 640px) {
    .about-values { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
    .about-values { grid-template-columns: repeat(3, 1fr); }
}
.value-card {
    text-align: center;
    padding: 28px 20px;
}
.value-card .val-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 14px;
    background: var(--blue-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}
.value-card h4 {
    font-family: var(--font-body);
    margin-bottom: 8px;
}
.value-card p {
    font-size: 13px;
    color: var(--slate);
}

/* --- Page Hero (interior pages) --- */
.page-hero {
    background: linear-gradient(135deg, var(--blue-darker) 0%, var(--blue) 100%);
    color: white;
    padding: 40px 0;
}
.page-hero h1 {
    color: white;
    font-size: 1.75rem;
    margin-bottom: 8px;
}
.page-hero p {
    color: rgba(255,255,255,0.8);
    font-size: 15px;
    max-width: 560px;
}
@media (min-width: 768px) {
    .page-hero { padding: 56px 0; }
    .page-hero h1 { font-size: 2.25rem; }
}

/* --- Info Box --- */
.info-box {
    background: var(--blue-light);
    border-left: 4px solid var(--blue);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    padding: 16px 20px;
    margin: 24px 0;
    font-size: 14px;
    color: var(--charcoal);
    line-height: 1.6;
}

/* --- Contact Info Cards --- */
.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.contact-info-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}
.contact-info-item .ci-icon {
    width: 40px;
    height: 40px;
    background: var(--blue-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--blue);
    font-size: 16px;
}
.contact-info-item h4 {
    font-family: var(--font-body);
    font-size: 14px;
    margin-bottom: 2px;
}
.contact-info-item p {
    font-size: 14px;
    color: var(--slate);
}

/* --- Footer --- */
.site-footer {
    background: var(--charcoal);
    color: rgba(255,255,255,0.7);
    padding: 48px 0 0;
    font-size: 14px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
@media (min-width: 768px) {
    .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1.2fr; }
}
.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}
.footer-brand img { border-radius: 6px; }
.footer-brand span {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
}
.footer-about p {
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: 12px;
}
.footer-address {
    font-size: 13px;
    line-height: 1.7;
}
.footer-address a { color: rgba(255,255,255,0.7); }
.footer-address a:hover { color: white; }
.footer-col h4 {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 600;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 14px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col li a {
    color: rgba(255,255,255,0.6);
    font-size: 13px;
    transition: color var(--transition);
}
.footer-col li a:hover { color: white; }
.footer-cta-btn {
    display: block;
    text-align: center;
    margin-bottom: 20px;
    font-size: 13px;
}
.footer-invoice-lookup {
    margin-top: 4px;
}
.footer-invoice-lookup label {
    color: rgba(255,255,255,0.5);
    font-size: 11px;
}
.footer-invoice-lookup .lookup-row input {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.15);
    color: white;
    font-size: 13px;
    padding: 8px 12px;
}
.footer-invoice-lookup .lookup-row input::placeholder { color: rgba(255,255,255,0.3); }
.footer-invoice-lookup .lookup-row button {
    font-size: 12px;
    padding: 8px 14px;
}
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    padding: 20px 0;
    font-size: 12px;
    color: rgba(255,255,255,0.35);
}
.footer-bottom a { color: rgba(255,255,255,0.4); }
.footer-bottom a:hover { color: rgba(255,255,255,0.7); }

/* --- Inline SVG Icons --- */
.icon {
    width: 20px;
    height: 20px;
    display: inline-block;
    vertical-align: middle;
}

/* --- Form Success/Error --- */
.form-message {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 16px;
    display: none;
}
.form-message.success {
    background: var(--green-light);
    color: var(--green);
    display: block;
}
.form-message.error {
    background: #fef2f2;
    color: #c53030;
    display: block;
}

/* --- Print --- */
@media print {
    .top-bar, .site-header, .site-footer, .mobile-nav-overlay,
    .cta-section, .estimator-section { display: none !important; }
    .hero { padding: 20px 0; }
    body { background: white; }
}