/* === RESET & VARIABLES === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --color-bg: #0b0f14;
    --color-surface: #151a21;
    --color-surface-hover: #1e252e;
    --color-primary: #0ea5e9;
    --color-primary-hover: #0284c7;
    --color-accent: #22d3ee;
    --color-text: #e2e8f0;
    --color-text-muted: #94a3b8;
    --color-border: #2a323d;
    --font-heading: 'Plus Jakarta Sans', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --container: 1200px;
    --radius: 10px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--color-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-accent); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 1.5rem; }

/* === BUTTONS === */
.btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.9rem 1.8rem; border-radius: var(--radius);
    font-weight: 600; font-size: 0.95rem; cursor: pointer;
    border: 2px solid transparent; transition: var(--transition);
    text-align: center; justify-content: center;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-hover); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(14,165,233,0.25); }
.btn-outline { border-color: var(--color-primary); color: var(--color-primary); background: transparent; }
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.btn-sm { padding: 0.65rem 1.3rem; font-size: 0.85rem; }
.btn-full { width: 100%; }

/* === HEADER === */
.site-header {
    position: sticky; top: 0; z-index: 1000;
    background: rgba(11, 15, 20, 0.92); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
}
.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 76px;
}
.logo {
    font-family: var(--font-heading); font-weight: 800; font-size: 1.2rem;
    color: #fff; display: flex; align-items: center; gap: 0.5rem;
    letter-spacing: -0.02em;
}
.logo i { color: var(--color-accent); }
.main-nav ul { display: flex; gap: 2.25rem; }
.main-nav a { color: var(--color-text-muted); font-size: 0.9rem; font-weight: 500; position: relative; }
.main-nav a:hover { color: #fff; }
.main-nav a::after {
    content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
    background: var(--color-accent); transition: var(--transition);
}
.main-nav a:hover::after { width: 100%; }
.header-actions { display: flex; align-items: center; gap: 1rem; }

.mobile-toggle { display: none; background: none; border: none; cursor: pointer; padding: 0.5rem; }
.bar { display: block; width: 24px; height: 2px; background: #fff; margin: 5px 0; transition: var(--transition); border-radius: 2px; }

/* === HERO === */
.hero {
    position: relative; padding: 9rem 0 7rem; overflow: hidden;
    background: linear-gradient(160deg, var(--color-bg) 0%, #0f172a 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 740px; }
.tagline {
    display: inline-block; font-size: 0.78rem; font-weight: 600;
    color: var(--color-accent); text-transform: uppercase; letter-spacing: 0.1em;
    margin-bottom: 1.75rem;
}
.hero h1 {
    font-family: var(--font-heading); font-size: clamp(2.4rem, 5.5vw, 3.75rem);
    font-weight: 800; line-height: 1.1; margin-bottom: 1.75rem; color: #fff;
    letter-spacing: -0.03em;
}
.hero h1 a { color: inherit; text-decoration: underline; text-decoration-color: var(--color-accent); text-underline-offset: 6px; }
.hero h1 a:hover { color: var(--color-accent); }
.subheading { font-size: 1.2rem; color: var(--color-text-muted); margin-bottom: 2.75rem; max-width: 620px; line-height: 1.6; }
.subheading a { color: var(--color-accent); font-weight: 500; }
.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 3.5rem; }
.trust-stats { display: flex; gap: 3.5rem; flex-wrap: wrap; padding-top: 2rem; border-top: 1px solid var(--color-border); }
.stat strong { display: block; font-family: var(--font-heading); font-size: 2rem; color: #fff; letter-spacing: -0.02em; }
.stat span { font-size: 0.78rem; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.06em; }

/* Signature Visual Accent: Water Bead Glow */
.hero-visual-accent {
    position: absolute; right: -8%; top: 15%; width: 650px; height: 650px;
    background: radial-gradient(circle, rgba(34,211,238,0.1) 0%, rgba(14,165,233,0.05) 40%, transparent 70%);
    border-radius: 50%; pointer-events: none; z-index: 1;
    animation: pulse 8s ease-in-out infinite alternate;
}
@keyframes pulse { from { opacity: 0.6; transform: scale(1); } to { opacity: 1; transform: scale(1.05); } }

/* === SERVICES === */
.services-section { padding: 7rem 0; }
.services-section h2 { font-family: var(--font-heading); font-size: 2.25rem; margin-bottom: 3.5rem; color: #fff; letter-spacing: -0.02em; }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 1.5rem; }
.service-card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius); padding: 2.25rem; transition: var(--transition);
}
.service-card:hover { background: var(--color-surface-hover); border-color: var(--color-primary); transform: translateY(-4px); }
.icon-wrap {
    width: 52px; height: 52px; border-radius: 14px;
    background: rgba(14,165,233,0.1); display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; color: var(--color-primary); margin-bottom: 1.5rem;
}
.service-card h3 { font-family: var(--font-heading); font-size: 1.2rem; margin-bottom: 0.6rem; color: #fff; }
.service-card p { font-size: 0.92rem; color: var(--color-text-muted); margin-bottom: 1.25rem; }
.service-card ul li {
    font-size: 0.84rem; color: var(--color-text-muted); padding-left: 1.3rem;
    position: relative; margin-bottom: 0.35rem;
}
.service-card ul li::before {
    content: '✓'; position: absolute; left: 0; color: var(--color-accent); font-weight: 700; font-size: 0.8rem;
}

/* === GUIDE / ARTICLE === */
.guide-section { padding: 7rem 0; background: var(--color-surface); }
.article-container { max-width: 820px; }
.article-header { margin-bottom: 3.5rem; border-bottom: 1px solid var(--color-border); padding-bottom: 2.5rem; }
.article-header h2 { font-family: var(--font-heading); font-size: 2.25rem; color: #fff; margin-bottom: 0.75rem; letter-spacing: -0.02em; line-height: 1.2; }
.byline { font-size: 0.88rem; color: var(--color-text-muted); }
.article-body h3 { font-family: var(--font-heading); font-size: 1.5rem; color: #fff; margin: 3rem 0 1.25rem; letter-spacing: -0.01em; }
.article-body p { margin-bottom: 1.5rem; color: var(--color-text-muted); font-size: 1.05rem; }
.article-body ol { padding-left: 1.75rem; margin-bottom: 1.75rem; counter-reset: step; list-style: decimal; }
.article-body ol li { margin-bottom: 0.85rem; color: var(--color-text-muted); padding-left: 0.5rem; font-size: 1.05rem; }
.article-body a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 3px; font-weight: 500; }
.article-body a:hover { color: var(--color-primary); }

/* === FAQ === */
.faq-section { padding: 7rem 0; }
.faq-section h2 { font-family: var(--font-heading); font-size: 2.25rem; margin-bottom: 3.5rem; color: #fff; text-align: center; letter-spacing: -0.02em; }
.accordion { max-width: 820px; margin: 0 auto; }
.faq-item {
    border: 1px solid var(--color-border); border-radius: var(--radius);
    margin-bottom: 0.85rem; overflow: hidden; transition: var(--transition);
}
.faq-item[open] { border-color: var(--color-primary); background: var(--color-surface); }
.faq-item summary {
    padding: 1.35rem 1.75rem; cursor: pointer; font-weight: 600; color: #fff;
    list-style: none; display: flex; justify-content: space-between; align-items: center;
    font-size: 1.02rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 1.4rem; color: var(--color-primary); transition: var(--transition); font-weight: 300; }
.faq-item[open] summary::after { content: '−'; }
.faq-item p { padding: 0 1.75rem 1.75rem; color: var(--color-text-muted); font-size: 0.98rem; line-height: 1.7; }

/* === TESTIMONIALS === */
.testimonials-section { padding: 7rem 0; background: var(--color-surface); }
.testimonials-section h2 { font-family: var(--font-heading); font-size: 2.25rem; margin-bottom: 3.5rem; color: #fff; text-align: center; letter-spacing: -0.02em; }
.testimonials-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1.5rem; }
.testimonial-card {
    background: var(--color-bg); border: 1px solid var(--color-border);
    border-radius: var(--radius); padding: 2.25rem;
}
.stars { color: #fbbf24; font-size: 1rem; margin-bottom: 1.25rem; letter-spacing: 3px; }
.testimonial-card p { font-style: italic; color: var(--color-text-muted); margin-bottom: 1.75rem; font-size: 0.98rem; line-height: 1.7; }
.testimonial-card footer { display: flex; align-items: center; gap: 0.85rem; }
.avatar {
    width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.85rem; color: #fff;
}
.testimonial-card cite { font-style: normal; }
.testimonial-card cite strong { display: block; color: #fff; font-size: 0.95rem; }
.testimonial-card cite span { font-size: 0.82rem; color: var(--color-text-muted); }
.sample-note { text-align: center; margin-top: 2.5rem; font-size: 0.82rem; color: var(--color-text-muted); font-style: italic; }

/* === CONTACT === */
.contact-section { padding: 7rem 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start; }
.contact-info h2 { font-family: var(--font-heading); font-size: 2.25rem; color: #fff; margin-bottom: 1.25rem; letter-spacing: -0.02em; }
.contact-info > p { color: var(--color-text-muted); margin-bottom: 2.5rem; font-size: 1.05rem; }
.contact-details dt { font-weight: 600; color: #fff; margin-top: 1.5rem; display: flex; align-items: center; gap: 0.6rem; font-size: 0.95rem; }
.contact-details dd { color: var(--color-text-muted); margin-left: 1.85rem; margin-top: 0.3rem; font-size: 0.95rem; }
.contact-details a { color: var(--color-text-muted); }
.contact-details a:hover { color: var(--color-primary); }
.contact-info .btn { margin-top: 2.5rem; }

.quote-form {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius); padding: 2.75rem;
}
.quote-form h3 { font-family: var(--font-heading); font-size: 1.4rem; color: #fff; margin-bottom: 1.75rem; }
.form-group { margin-bottom: 1.35rem; }
.form-group label { display: block; font-size: 0.88rem; font-weight: 600; margin-bottom: 0.45rem; color: var(--color-text); }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 0.85rem 1.1rem; border-radius: var(--radius);
    border: 1px solid var(--color-border); background: var(--color-bg);
    color: #fff; font-family: var(--font-body); font-size: 0.98rem;
    transition: var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(14,165,233,0.15);
}
.form-note { font-size: 0.78rem; color: var(--color-text-muted); margin-top: 1.25rem; text-align: center; }

/* === FOOTER === */
.site-footer { background: var(--color-surface); border-top: 1px solid var(--color-border); padding: 4.5rem 0 0; }
.footer-grid { display: grid; grid-template-columns: 2.2fr 1fr 1fr 1fr; gap: 3.5rem; padding-bottom: 3.5rem; }
.footer-brand h3 { font-family: var(--font-heading); color: #fff; margin-bottom: 0.85rem; display: flex; align-items: center; gap: 0.5rem; font-size: 1.1rem; letter-spacing: -0.01em; }
.footer-brand h3 i { color: var(--color-accent); }
.footer-brand p { color: var(--color-text-muted); font-size: 0.92rem; max-width: 300px; line-height: 1.6; }
.site-footer h4 { color: #fff; font-size: 0.88rem; margin-bottom: 1.25rem; text-transform: uppercase; letter-spacing: 0.06em; font-weight: 700; }
.site-footer ul li { margin-bottom: 0.6rem; }
.site-footer ul li a, .site-footer ul li { color: var(--color-text-muted); font-size: 0.88rem; }
.site-footer ul li a:hover { color: var(--color-primary); }
.footer-contact p { color: var(--color-text-muted); font-size: 0.88rem; margin-bottom: 0.5rem; }
.footer-contact a { color: var(--color-text-muted); }
.footer-contact a:hover { color: var(--color-primary); }
.copyright {
    border-top: 1px solid var(--color-border); padding: 1.75rem 0;
    text-align: center; font-size: 0.82rem; color: var(--color-text-muted);
}
.copyright a { color: var(--color-text-muted); }
.copyright a:hover { color: var(--color-primary); }

/* === RESPONSIVE === */
@media (max-width: 968px) {
    .contact-grid { grid-template-columns: 1fr; gap: 3.5rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .mobile-toggle { display: block; }
    .main-nav {
        position: fixed; top: 76px; left: 0; right: 0; bottom: 0;
        background: var(--color-bg); padding: 2.5rem;
        transform: translateX(100%); transition: var(--transition);
        border-top: 1px solid var(--color-border); z-index: 999;
    }
    .main-nav.active { transform: translateX(0); }
    .main-nav ul { flex-direction: column; gap: 1.75rem; }
    .main-nav a { font-size: 1.15rem; }
    .header-actions .btn { display: none; }
    
    .hero { padding: 7rem 0 5rem; }
    .hero h1 { font-size: 2.2rem; }
    .trust-stats { gap: 2rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .services-grid { grid-template-columns: 1fr; }
    .article-header h2 { font-size: 1.75rem; }
    .guide-section h2, .faq-section h2, .testimonials-section h2, .contact-info h2 { font-size: 1.75rem; }
}