/* ===== BiziTrip — Classic Corporate Multi-Page Style ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --primary: #1565c0;
    --primary-dark: #0d47a1;
    --primary-light: #42a5f5;
    --accent: #00838f;
    --accent-light: #26c6da;
    --gold: #f5a623;
    --dark: #1a1a2e;
    --text: #333333;
    --text-light: #555555;
    --text-muted: #777777;
    --bg: #ffffff;
    --bg-alt: #f4f7fa;
    --border: #e0e6ed;
    --white: #ffffff;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Noto Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text);
    line-height: 1.7;
    background: var(--bg);
    font-size: 15px;
}

.container { max-width: 1140px; margin: 0 auto; padding: 0 20px; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.text-center { text-align: center; margin-top: 30px; }

/* ===== TOP BAR ===== */
.topbar {
    background: var(--dark);
    color: #bbb;
    font-size: 12px;
    padding: 8px 0;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.topbar-left { display: flex; gap: 20px; flex-wrap: wrap; }
.topbar-item { display: flex; align-items: center; gap: 6px; }
.topbar-item i { color: var(--accent-light); font-size: 11px; }
.lang-switcher { display: flex; gap: 2px; }
.lang-btn {
    padding: 3px 10px;
    font-size: 11px;
    font-weight: 600;
    color: #999;
    background: transparent;
    border: 1px solid #555;
    transition: all 0.2s;
}
.lang-btn:hover, .lang-btn.active {
    color: #fff;
    background: var(--primary);
    border-color: var(--primary);
}

/* ===== HEADER ===== */
.header {
    background: var(--white);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 8px; }
.logo-icon { font-size: 22px; color: var(--primary); }
.logo-text { font-size: 1.3rem; font-weight: 400; color: var(--dark); letter-spacing: 1px; }
.logo-text strong { font-weight: 800; color: var(--primary); }
.nav-links { display: flex; gap: 28px; }
.nav-links a {
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 4px 0;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--primary); border-bottom-color: var(--primary); }
.btn-nav {
    font-size: 12px; font-weight: 600; padding: 10px 20px;
    background: var(--primary); color: var(--white);
    text-transform: uppercase; letter-spacing: 0.5px; transition: background 0.2s;
}
.btn-nav:hover { background: var(--primary-dark); }
.mobile-toggle { display: none; flex-direction: column; gap: 4px; background: none; border: none; cursor: pointer; padding: 8px; }
.mobile-toggle span { width: 20px; height: 2px; background: var(--text); }

/* ===== BUTTONS ===== */
.btn {
    display: inline-block; padding: 14px 32px; font-size: 13px; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.5px; cursor: pointer; transition: all 0.2s; border: none;
}
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); }
.btn-gold { background: var(--gold); color: var(--dark); }
.btn-gold:hover { background: #e6951a; }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: var(--white); }
.btn-outline-light { background: transparent; color: var(--white); border: 2px solid rgba(255,255,255,0.6); }
.btn-outline-light:hover { background: rgba(255,255,255,0.15); border-color: var(--white); }
.btn-full { width: 100%; text-align: center; }

/* ===== HERO ===== */
.hero {
    background: linear-gradient(135deg, #0d47a1 0%, #1565c0 40%, #00695c 100%);
    color: var(--white);
    padding: 80px 0 100px;
}
.hero-inner { max-width: 800px; }
.hero h1 { font-size: 2.4rem; font-weight: 700; line-height: 1.25; margin-bottom: 24px; letter-spacing: -0.5px; }
.hero-sub { font-size: 1rem; line-height: 1.8; opacity: 0.9; margin-bottom: 40px; }
.hero-stats { display: flex; gap: 36px; margin-bottom: 40px; flex-wrap: wrap; }
.hero-stat { text-align: center; }
.hero-stat i { font-size: 1.4rem; color: var(--gold); margin-bottom: 6px; display: block; }
.hero-stat strong { display: block; font-size: 1.8rem; font-weight: 800; color: var(--white); }
.hero-stat span { font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; opacity: 0.8; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ===== PAGE BANNER ===== */
.page-banner {
    background: linear-gradient(135deg, #0d47a1 0%, #1565c0 60%, #00695c 100%);
    color: var(--white);
    padding: 60px 0;
    text-align: center;
}
.page-banner h1 { font-size: 2rem; font-weight: 700; margin-bottom: 8px; }
.page-banner p { font-size: 1rem; opacity: 0.85; }

/* ===== SECTIONS ===== */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-title { text-align: center; margin-bottom: 50px; }
.section-title h2 { font-size: 1.7rem; font-weight: 700; color: var(--dark); margin-bottom: 12px; }
.title-line { width: 50px; height: 3px; background: var(--accent); margin: 0 auto 16px; }
.title-line-left { margin: 0 0 20px 0; }
.section-subtitle { font-size: 0.95rem; color: var(--text-muted); max-width: 600px; margin: 0 auto; }

/* ===== WHY CHOOSE ===== */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; }
.why-item { text-align: center; padding: 24px 16px; }
.why-icon-fa { font-size: 2rem; color: var(--primary); margin-bottom: 16px; display: block; }
.why-item h3 { font-size: 0.95rem; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.why-item p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; }

/* ===== SERVICES OVERVIEW ===== */
.services-overview { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.svc-card { padding: 36px 28px; background: var(--white); box-shadow: 0 2px 8px rgba(0,0,0,0.04); transition: box-shadow 0.2s; }
.svc-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.08); }
.svc-icon { font-size: 2rem; color: var(--accent); margin-bottom: 16px; display: block; }
.svc-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.svc-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 16px; }
.link-more { font-size: 13px; font-weight: 600; color: var(--primary); text-transform: uppercase; letter-spacing: 0.3px; }
.link-more i { margin-left: 4px; font-size: 11px; }
.link-more:hover { color: var(--primary-dark); }

/* ===== CONTENT BLOCK (About page) ===== */
.content-block { display: grid; grid-template-columns: 1.5fr 1fr; gap: 60px; align-items: start; }
.content-text h2 { font-size: 1.5rem; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.content-text p { margin-bottom: 18px; color: var(--text-light); line-height: 1.8; }
.stat-box { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.stat-box-item { text-align: center; padding: 24px 16px; background: var(--bg-alt); }
.stat-box-item i { font-size: 1.5rem; color: var(--accent); margin-bottom: 8px; display: block; }
.stat-box-item strong { display: block; font-size: 1.5rem; font-weight: 800; color: var(--primary); margin-bottom: 4px; }
.stat-box-item span { font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted); }

/* ===== FOUR GRID ===== */
.four-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.grid-item { padding: 30px; background: var(--white); box-shadow: 0 1px 4px rgba(0,0,0,0.04); }
.grid-icon { font-size: 1.5rem; color: var(--accent); margin-bottom: 12px; display: block; }
.grid-item h4 { font-size: 0.95rem; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.grid-item p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; }

/* ===== OFFICE GRID ===== */
.office-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.office-item { text-align: center; padding: 24px 16px; }
.office-item i { font-size: 1.5rem; color: var(--primary); margin-bottom: 10px; display: block; }
.office-item h4 { font-size: 0.95rem; font-weight: 700; color: var(--dark); margin-bottom: 6px; }
.office-item p { font-size: 0.82rem; color: var(--text-muted); line-height: 1.6; }

/* ===== SERVICE DETAIL (services page) ===== */
.service-detail { margin-bottom: 0; padding-bottom: 0; }
.service-detail-header { display: flex; align-items: center; gap: 20px; margin-bottom: 20px; }
.service-detail-icon {
    width: 72px; height: 72px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 16px; flex-shrink: 0;
}
.service-detail-icon i { font-size: 1.8rem; color: var(--white); }
.svc-icon-1 { background: linear-gradient(135deg, #1565c0, #42a5f5); }
.svc-icon-2 { background: linear-gradient(135deg, #00838f, #26c6da); }
.svc-icon-3 { background: linear-gradient(135deg, #2e7d32, #66bb6a); }
.svc-icon-4 { background: linear-gradient(135deg, #e65100, #ffa726); }
.service-detail-header h2 { font-size: 1.4rem; font-weight: 700; color: var(--dark); }
.service-detail-num { display: none; }
.service-tagline { font-style: italic; color: var(--text-muted); margin-bottom: 20px; font-size: 0.95rem; padding-left: 92px; }
.service-detail-body { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; padding-left: 92px; }
.service-detail-text p { margin-bottom: 14px; color: var(--text-light); line-height: 1.8; }
.service-detail-features { background: var(--bg-alt); padding: 24px; }
.service-detail-features h4 { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted); margin-bottom: 14px; }
.service-detail-features ul { list-style: none; }
.service-detail-features li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 12px; font-size: 0.88rem; color: var(--text); }
.service-detail-features li i { color: var(--accent); font-size: 11px; margin-top: 4px; flex-shrink: 0; }
.feature-list { margin-top: 16px; }
.feature-list li { position: relative; padding-left: 24px; margin-bottom: 10px; font-size: 0.9rem; color: var(--text); }
.feature-list li::before { content: "\f00c"; font-family: "Font Awesome 6 Free"; font-weight: 900; position: absolute; left: 0; color: var(--accent); font-size: 12px; }

/* ===== TECH GRID ===== */
.tech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.tech-item { padding: 28px; background: var(--white); box-shadow: 0 1px 6px rgba(0,0,0,0.04); }
.tech-item i { font-size: 1.5rem; color: var(--accent); margin-bottom: 12px; display: block; }
.tech-item h4 { font-size: 0.9rem; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.tech-item p { font-size: 0.83rem; color: var(--text-muted); line-height: 1.7; }

/* ===== PARTNER LOGOS ===== */
.partner-logos {
    display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
    gap: 36px; margin-bottom: 30px; padding: 30px 0;
}
.partner-logos img { height: 40px; object-fit: contain; filter: grayscale(30%); opacity: 0.85; transition: all 0.2s; }
.partner-logos img:hover { filter: grayscale(0%); opacity: 1; }

.partner-section { margin-bottom: 50px; }
.partner-section h4 {
    font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px;
    color: var(--text-muted); margin-bottom: 20px; padding-bottom: 10px; border-bottom: 1px solid var(--border);
}
.partner-logo-grid {
    display: flex; flex-wrap: wrap; align-items: center; gap: 24px; padding: 10px 0;
}
.partner-logo-grid img { height: 44px; object-fit: contain; filter: grayscale(20%); opacity: 0.9; transition: all 0.2s; }
.partner-logo-grid img:hover { filter: grayscale(0%); opacity: 1; }
.partner-text-logo {
    display: inline-flex; align-items: center; justify-content: center;
    height: 44px; padding: 8px 20px; background: var(--bg-alt);
    font-size: 13px; font-weight: 700; color: var(--text); letter-spacing: 0.5px;
}
.partner-name-list { display: flex; flex-wrap: wrap; gap: 10px; }
.partner-name-list span {
    display: inline-block; padding: 8px 16px; background: var(--bg-alt);
    font-size: 13px; font-weight: 500; color: var(--text);
}

/* ===== CTA ===== */
.cta-section {
    background: linear-gradient(135deg, #0d47a1 0%, #1565c0 50%, #00695c 100%);
    padding: 80px 0; text-align: center; color: var(--white);
}
.cta-content h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 12px; }
.cta-content p { font-size: 1rem; opacity: 0.85; margin-bottom: 30px; }
.cta-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cta-actions .btn i { margin-right: 6px; }

/* ===== CONTACT ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 60px; align-items: start; }
.contact-block { margin-bottom: 24px; }
.contact-block h4 { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted); margin-bottom: 4px; }
.contact-block p { font-size: 0.95rem; color: var(--dark); font-weight: 500; }
.contact-block i { color: var(--accent); margin-right: 8px; width: 16px; text-align: center; }
.contact-form { background: var(--white); padding: 36px; box-shadow: 0 2px 12px rgba(0,0,0,0.04); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted); margin-bottom: 5px; }
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%; padding: 11px 14px; border: 1px solid var(--border);
    font-size: 14px; font-family: inherit; color: var(--text);
    background: var(--bg-alt); transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: none; border-color: var(--primary); background: var(--white);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-group select { appearance: auto; }

/* ===== FOOTER ===== */
.footer { background: var(--dark); color: #aaa; padding: 60px 0 24px; font-size: 13px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { margin-bottom: 14px; }
.footer-brand .logo-icon { color: var(--accent-light); }
.footer-brand .logo-text { color: #eee; }
.footer-brand .logo-text strong { color: var(--accent-light); }
.footer-brand > p { color: #888; line-height: 1.7; font-size: 13px; margin-bottom: 16px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a { width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; background: rgba(255,255,255,0.08); color: #aaa; font-size: 13px; transition: all 0.2s; }
.footer-social a:hover { background: var(--primary); color: #fff; }
.footer-col h4 { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: #ccc; margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 9px; }
.footer-col a { color: #888; font-size: 13px; transition: color 0.2s; }
.footer-col a:hover { color: #fff; }
.footer-contact li { display: flex; align-items: center; gap: 8px; color: #888; }
.footer-contact i { color: var(--accent-light); font-size: 12px; width: 14px; text-align: center; }
.footer-bottom { padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.08); text-align: center; color: #666; font-size: 12px; }

/* ===== CONTACT PAGE ===== */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 60px;
    align-items: start;
}
.contact-info-block h3,
.contact-form-block h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--accent);
}
.contact-office {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 22px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border);
}
.contact-office:last-child { border-bottom: none; }
.contact-office i {
    font-size: 1.1rem;
    color: var(--primary);
    margin-top: 3px;
    width: 20px;
    text-align: center;
}
.contact-office h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 3px;
}
.contact-office p {
    font-size: 0.9rem;
    color: var(--text-muted);
}
.contact-form-block .contact-form {
    box-shadow: none;
    padding: 0;
    background: transparent;
}

/* ===== MARKETS GRID ===== */
.markets-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}
.market-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 24px;
    background: var(--white);
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--dark);
}
.market-item i {
    color: var(--accent);
    font-size: 0.9rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .contact-layout { grid-template-columns: 1fr; }
    .why-grid { grid-template-columns: repeat(2, 1fr); }
    .services-overview { grid-template-columns: 1fr; }
    .tech-grid { grid-template-columns: repeat(2, 1fr); }
    .content-block { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .office-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .topbar-left { display: none; }
    .nav-links, .btn-nav { display: none; }
    .mobile-toggle { display: flex; }
    .hero h1 { font-size: 1.8rem; }
    .hero-stats { gap: 20px; }
    .why-grid { grid-template-columns: 1fr; }
    .four-grid { grid-template-columns: 1fr; }
    .tech-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .section { padding: 60px 0; }
    .office-grid { grid-template-columns: 1fr; }
    .stat-box { grid-template-columns: 1fr; }
    .partner-logos img { height: 30px; }
    .contact-layout { grid-template-columns: 1fr; }
    .markets-grid { gap: 12px; }
    .market-item { padding: 10px 16px; font-size: 0.82rem; }
    .service-detail-body { grid-template-columns: 1fr; padding-left: 0; }
    .service-tagline { padding-left: 0; }
    .service-detail-icon { width: 56px; height: 56px; border-radius: 12px; }
    .service-detail-icon i { font-size: 1.4rem; }
}
@media (max-width: 480px) {
    .hero-actions { flex-direction: column; }
    .hero-stats { flex-direction: column; gap: 16px; }
    .cta-actions { flex-direction: column; align-items: center; }
}