/* ============================================================
   NVU Broadband — Main Stylesheet
   Tech/Telecom vibe: deep blue, electric accent, clean white
   ============================================================ */

:root {
    --blue:       #0a7ec2;
    --blue-dark:  #065a8e;
    --blue-light: #e8f4fd;
    --blue-deep:  #062c4a;
    --accent:     #00c4a0;
    --white:      #ffffff;
    --light:      #f4f8fc;
    --text:       #1a2733;
    --text-muted: #5a6a7a;
    --border:     #dce8f0;
    --shadow:     rgba(10,126,194,0.12);
    --radius:     10px;
    --radius-lg:  18px;
    --font:       'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --nav-h:      72px;
    --transition: 0.22s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: #fff; line-height: 1.65; min-height: 100vh; display: flex; flex-direction: column; }
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); }
main { flex: 1; }

h1, h2, h3, h4 { color: var(--blue-deep); line-height: 1.22; font-weight: 700; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.2rem; }
p { margin-bottom: 1rem; color: var(--text-muted); }
p:last-child { margin-bottom: 0; }
ul { list-style: none; padding: 0; }

/* Layout */
.container { max-width: 1180px; margin: 0 auto; padding: 0 1.5rem; }
.container-narrow { max-width: 820px; margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 5rem 0; }
.section-white { background: #fff; }
.section-light { background: var(--light); }
.section-blue { background: var(--blue-deep); }
.section-photo { position: relative; padding: 6rem 0; min-height: 400px; display: flex; align-items: center; background-size: cover; background-position: center; }
.photo-overlay { position: absolute; inset: 0; background: rgba(6,28,50,0.72); }
.text-center { text-align: center; }
.text-white { color: #fff !important; }
.text-white h2, .text-white h3 { color: #fff; }
.text-light-muted { color: rgba(255,255,255,0.72); }
.mb-3 { margin-bottom: 2.5rem; }
.section-divider { border: none; border-top: 1px solid var(--border); margin: 0; }

/* Section labels */
.section-label { font-size: .78rem; font-weight: 700; letter-spacing: 2.5px; text-transform: uppercase; color: var(--blue); margin-bottom: .6rem; display: block; }
.section-label.light { color: var(--accent); }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: .5rem; padding: .75rem 1.75rem; border-radius: 99px; font-weight: 600; font-size: .95rem; font-family: var(--font); cursor: pointer; border: 2px solid transparent; transition: all var(--transition); text-decoration: none; }
.btn-primary { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn-primary:hover { background: var(--blue-dark); border-color: var(--blue-dark); color: #fff; }
.btn-outline-white { background: transparent; color: #fff; border-color: rgba(255,255,255,0.6); }
.btn-outline-white:hover { background: rgba(255,255,255,0.12); color: #fff; border-color: #fff; }
.btn-white { background: #fff; color: var(--blue-deep); }
.btn-white:hover { background: var(--light); color: var(--blue-deep); }
.btn-lg { padding: .9rem 2.25rem; font-size: 1.05rem; }
.btn-full { width: 100%; justify-content: center; }

/* ===================== NAV ===================== */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; transition: background var(--transition), box-shadow var(--transition); }
.navbar { background: rgba(6,28,50,0.95); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(255,255,255,0.07); }
.nav-container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; height: var(--nav-h); display: flex; align-items: center; justify-content: space-between; }
.nav-brand { display: flex; align-items: center; gap: .85rem; text-decoration: none; }
.brand-mark { flex-shrink: 0; }
.brand-text { display: flex; flex-direction: column; }
.brand-name { color: #fff; font-weight: 800; font-size: 1.15rem; line-height: 1.1; letter-spacing: -.3px; }
.brand-tagline { color: rgba(255,255,255,0.5); font-size: .72rem; letter-spacing: 1px; text-transform: uppercase; }
.nav-menu { display: flex; align-items: center; gap: .25rem; list-style: none; }
.nav-link { color: rgba(255,255,255,0.78); padding: .5rem .85rem; border-radius: 6px; font-size: .95rem; font-weight: 500; transition: all var(--transition); }
.nav-link:hover, .nav-link.active { color: #fff; background: rgba(255,255,255,0.08); }
.btn-nav-cta { background: var(--blue); color: #fff !important; padding: .55rem 1.25rem; border-radius: 99px; font-weight: 600; font-size: .9rem; transition: background var(--transition); margin-left: .5rem; }
.btn-nav-cta:hover { background: var(--accent); color: #fff; }
.hamburger { display: none; flex-direction: column; gap: 5px; background: transparent; border: none; cursor: pointer; padding: .5rem; }
.hamburger span { display: block; width: 24px; height: 2px; background: #fff; border-radius: 2px; transition: all .3s; }

/* ===================== HERO ===================== */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center; text-align: center; overflow: hidden; padding: calc(var(--nav-h) + 2rem) 1.5rem 4rem; }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(160deg, rgba(6,28,50,0.88) 0%, rgba(10,70,120,0.75) 60%, rgba(0,196,160,0.3) 100%); }
.hero-content { position: relative; z-index: 1; max-width: 860px; margin: 0 auto; }
.hero-badge { display: inline-block; background: rgba(0,196,160,0.2); border: 1px solid rgba(0,196,160,0.4); color: var(--accent); padding: .4rem 1.1rem; border-radius: 99px; font-size: .85rem; font-weight: 600; margin-bottom: 1.5rem; }
.hero-content h1 { color: #fff; font-size: clamp(2.2rem, 6vw, 4rem); font-weight: 800; margin-bottom: 1.25rem; text-shadow: 0 2px 16px rgba(0,0,0,0.3); letter-spacing: -.5px; }
.hero-sub { color: rgba(255,255,255,0.82); font-size: 1.18rem; max-width: 680px; margin: 0 auto 2.5rem; line-height: 1.7; }
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* Page hero (inner pages) */
.page-hero { background: linear-gradient(135deg, var(--blue-deep) 0%, #0c4a7a 100%); padding: calc(var(--nav-h) + 2.5rem) 0 3rem; }
.page-hero h1 { color: #fff; }
.hero-sub-sm { color: rgba(255,255,255,0.72); font-size: 1.1rem; margin-top: .75rem; }

/* ===================== STATS ===================== */
.stats-row { display: flex; justify-content: center; gap: 4rem; flex-wrap: wrap; padding: 1rem 0; }
.stat-item { text-align: center; }
.stat-num { font-size: 2.5rem; font-weight: 800; color: var(--blue); line-height: 1; }
.stat-label { font-size: .88rem; color: var(--text-muted); margin-top: .25rem; text-transform: uppercase; letter-spacing: 1px; }

/* ===================== SPLIT SECTION ===================== */
.split-section { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; }
.split-section.reverse { direction: rtl; }
.split-section.reverse > * { direction: ltr; }
.split-text h2 { margin-bottom: 1.25rem; }
.split-text p { margin-bottom: 1rem; }
.split-text .btn { margin-top: .5rem; }
.split-img { border-radius: var(--radius-lg); width: 100%; height: 400px; object-fit: cover; box-shadow: 0 20px 60px rgba(10,126,194,0.2); }

/* ===================== SERVICE CARDS ===================== */
.service-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 3rem; }
.service-card { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-lg); padding: 2rem 1.75rem; transition: all var(--transition); }
.service-card:hover { background: rgba(255,255,255,0.1); transform: translateY(-4px); }
.service-card.featured { background: var(--blue); border-color: var(--blue); }
.service-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.service-card h3 { color: #fff; margin-bottom: .75rem; }
.service-card p { color: rgba(255,255,255,0.7); font-size: .95rem; margin-bottom: 1.25rem; }
.card-link { color: var(--accent); font-weight: 600; font-size: .9rem; }
.card-link:hover { color: #fff; }

/* ===================== VALUES ===================== */
.values-section { display: grid; grid-template-columns: 350px 1fr; gap: 4rem; align-items: start; }
.values-text h2 { margin-bottom: 1rem; }
.values-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.value-item { display: flex; gap: .85rem; align-items: flex-start; }
.value-icon { font-size: 1.5rem; flex-shrink: 0; margin-top: .1rem; }
.value-item strong { color: var(--blue-deep); font-weight: 600; display: block; margin-bottom: .2rem; font-size: .95rem; }
.value-item p { font-size: .88rem; margin: 0; }
.values-grid-full { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1.5rem; }
.value-card { background: #fff; border-radius: var(--radius-lg); padding: 1.75rem; border: 1px solid var(--border); transition: box-shadow var(--transition), transform var(--transition); }
.value-card:hover { box-shadow: 0 8px 32px var(--shadow); transform: translateY(-3px); }
.value-card-icon { font-size: 2.2rem; margin-bottom: .75rem; }
.value-card h3 { color: var(--blue-deep); margin-bottom: .5rem; font-size: 1.05rem; }
.value-card p { font-size: .92rem; margin: 0; }

/* ===================== GOALS ===================== */
.goals-list { display: flex; flex-direction: column; gap: 1.25rem; max-width: 800px; margin: 0 auto; }
.goal-item { display: flex; gap: 1.5rem; align-items: flex-start; background: var(--light); border-radius: var(--radius); padding: 1.5rem; }
.goal-num { font-size: 1.5rem; font-weight: 800; color: var(--blue); flex-shrink: 0; min-width: 2.5rem; }
.goal-item p { margin: 0; font-size: 1rem; }

/* ===================== SERVICE DETAIL ===================== */
.service-detail { display: grid; grid-template-columns: 100px 1fr; gap: 2.5rem; align-items: start; max-width: 900px; margin: 0 auto; }
.service-detail-icon { font-size: 4rem; text-align: center; padding-top: .5rem; }
.service-detail-body h2 { margin-bottom: 1rem; }
.service-detail-body p { margin-bottom: 1rem; }
.service-detail.reverse { direction: rtl; }
.service-detail.reverse > * { direction: ltr; }
.feature-list { margin: 1.25rem 0 1.75rem; display: flex; flex-direction: column; gap: .5rem; }
.feature-list li { display: flex; align-items: flex-start; gap: .6rem; font-size: .95rem; color: var(--text-muted); }
.feature-list li::before { content: '✓'; color: var(--accent); font-weight: 700; flex-shrink: 0; }

/* ===================== CONTACT ===================== */
.contact-layout { display: grid; grid-template-columns: 400px 1fr; gap: 4rem; align-items: start; }
.contact-info h2 { margin-bottom: 1rem; }
.contact-detail { display: flex; gap: 1rem; align-items: flex-start; margin: 1.25rem 0; }
.contact-icon { font-size: 1.5rem; flex-shrink: 0; }
.contact-detail strong { display: block; color: var(--blue-deep); font-weight: 600; margin-bottom: .2rem; }
.contact-highlight { background: var(--blue-light); border-left: 4px solid var(--blue); border-radius: 0 var(--radius) var(--radius) 0; padding: 1.25rem 1.5rem; margin-top: 2rem; }
.contact-highlight h3 { color: var(--blue-deep); margin-bottom: .5rem; font-size: 1rem; }
.contact-highlight p { margin: 0; font-size: .9rem; }
.contact-form-wrap { background: var(--light); border-radius: var(--radius-lg); padding: 2.5rem; }
.contact-form h2 { margin-bottom: 1.5rem; }
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-group label { font-weight: 600; font-size: .88rem; color: var(--blue-deep); }
.form-group input, .form-group textarea, .form-group select {
    padding: .75rem 1rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: var(--font);
    background: #fff;
    width: 100%;
    transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(10,126,194,0.12);
}
.form-success { text-align: center; padding: 3rem 2rem; }
.form-success-icon { font-size: 3.5rem; margin-bottom: 1rem; }
.form-success h3 { color: var(--blue-deep); margin-bottom: .5rem; }
.form-success p { margin-bottom: 1.5rem; }

/* Mission quote (about page) */
.mission-quote { font-size: 1.15rem; line-height: 1.8; color: rgba(255,255,255,0.88); font-style: italic; max-width: 780px; margin: 1.5rem auto 0; border: none; padding: 0; }

/* ===================== FOOTER ===================== */
.site-footer { background: var(--blue-deep); padding: 3rem 0; margin-top: auto; }
.footer-inner { max-width: 1180px; margin: 0 auto; padding: 0 1.5rem; display: grid; grid-template-columns: 1fr auto auto; gap: 3rem; align-items: center; }
.footer-brand { display: flex; align-items: center; gap: .85rem; }
.footer-name { color: #fff; font-weight: 700; font-size: 1.05rem; }
.footer-sub { color: rgba(255,255,255,0.5); font-size: .8rem; margin-top: .15rem; }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { color: rgba(255,255,255,0.65); font-size: .9rem; font-weight: 500; }
.footer-links a:hover { color: var(--accent); }
.footer-contact p { color: rgba(255,255,255,0.5); font-size: .85rem; margin-bottom: .25rem; text-align: right; }
.footer-contact a { color: rgba(255,255,255,0.7); }
.footer-copy { grid-column: 1 / -1; border-top: 1px solid rgba(255,255,255,0.08); padding-top: 1.25rem; }
.footer-copy p { color: rgba(255,255,255,0.4); font-size: .82rem; margin: 0; }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 1024px) {
    .split-section { grid-template-columns: 1fr; gap: 2.5rem; }
    .split-section.reverse { direction: ltr; }
    .split-img { height: 300px; }
    .service-cards { grid-template-columns: 1fr; gap: 1rem; }
    .values-section { grid-template-columns: 1fr; gap: 2rem; }
    .contact-layout { grid-template-columns: 1fr; gap: 2rem; }
    .footer-inner { grid-template-columns: 1fr; gap: 1.5rem; }
    .footer-contact p { text-align: left; }
}

@media (max-width: 768px) {
    .hamburger { display: flex; }
    .nav-menu {
        position: fixed;
        top: var(--nav-h);
        right: 0;
        bottom: 0;
        width: 280px;
        background: var(--blue-deep);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 1.5rem 0;
        transform: translateX(100%);
        transition: transform .3s ease;
        z-index: 99;
        overflow-y: auto;
    }
    .nav-menu.open { transform: translateX(0); }
    .nav-link { padding: .85rem 1.5rem; border-radius: 0; font-size: 1rem; }
    .btn-nav-cta { margin: .75rem 1rem; border-radius: 99px !important; text-align: center; padding: .75rem 1.25rem; }
    .hero { min-height: 100svh; }
    .section { padding: 3.5rem 0; }
    .service-detail { grid-template-columns: 1fr; gap: 1rem; }
    .service-detail-icon { font-size: 3rem; text-align: left; }
    .goals-list { gap: 1rem; }
    .values-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .stats-row { gap: 2rem; }
    .footer-links { flex-wrap: wrap; gap: 1rem; }
}

@media (max-width: 480px) {
    .hero-actions { flex-direction: column; align-items: center; }
    .hero-content h1 { font-size: 2rem; }
    .values-grid-full { grid-template-columns: 1fr; }
}