:root {
    --primary-dark: #1a3c5e;
    --primary: #1B4F72;
    --primary-medium: #2471A3;
    --primary-light: #2E86C1;
    --primary-pale: #D4E6F1;
    --primary-bg: #EBF3FA;
    --accent: #2980B9;
    --accent-glow: #3498DB;
    --white: #FFFFFF;
    --off-white: #F8FAFC;
    --gray-100: #E2E8F0;
    --gray-200: #CBD5E1;
    --gray-300: #94A3B8;
    --text: #1E293B;
    --text-light: #475569;
    --text-muted: #64748B;
    --border: #E1E8ED;
    --success: #16A34A;
    --error: #DC2626;
    --shadow-sm: 0 1px 3px rgba(27,79,114,0.06);
    --shadow: 0 4px 16px rgba(27,79,114,0.10);
    --shadow-md: 0 8px 30px rgba(27,79,114,0.13);
    --shadow-lg: 0 16px 48px rgba(27,79,114,0.16);
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1140px;
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    touch-action: manipulation;
}

body {
    font-family: var(--font);
    color: var(--text);
    background: var(--white);
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

main { flex: 1; }

a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-medium); }
ul { list-style: none; }
address { font-style: normal; }
strong { font-weight: 600; }

.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }
.text-center { text-align: center; }
.mt-3 { margin-top: 2rem; }
.mt-4 { margin-top: 3rem; }
.section-padding { padding: 60px 0; }

h1, h2, h3, h4 { font-weight: 700; line-height: 1.25; color: var(--text); }

.section-header { margin-bottom: 40px; }
.section-tag { display: inline-block; font-size: 0.85rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--primary-light); background: var(--primary-bg); padding: 6px 16px; border-radius: var(--radius-full); margin-bottom: 16px; }
.section-title { font-size: 1.8rem; font-weight: 800; color: var(--primary-dark); margin-bottom: 10px; }
.section-subtitle { font-size: 1.05rem; color: var(--text-light); max-width: 550px; margin: 0 auto; }

.btn { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font); font-weight: 600; font-size: 0.9rem; padding: 12px 26px; border-radius: var(--radius-full); cursor: pointer; border: 2px solid transparent; transition: all var(--transition); text-align: center; justify-content: center; white-space: nowrap; text-decoration: none; }
.btn-primary { background: linear-gradient(135deg, var(--primary-medium), var(--primary-light)); color: var(--white); box-shadow: 0 4px 14px rgba(46,134,193,0.3); }
.btn-primary:hover { background: linear-gradient(135deg, var(--primary), var(--primary-medium)); box-shadow: 0 6px 22px rgba(46,134,193,0.4); transform: translateY(-2px); color: var(--white); }
.btn-outline { background: transparent; color: var(--primary-light); border-color: var(--primary-light); }
.btn-outline:hover { background: var(--primary-light); color: var(--white); transform: translateY(-2px); }
.btn-sm { padding: 9px 18px; font-size: 0.85rem; }
.btn-lg { padding: 15px 32px; font-size: 1rem; }
.btn-full { width: 100%; justify-content: center; }

.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,0.95); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); transition: box-shadow var(--transition); }
.site-header.scrolled { box-shadow: var(--shadow); }
.header-container { display: flex; align-items: center; justify-content: space-between; padding-top: 10px; padding-bottom: 10px; }
.logo { display: flex; align-items: center; gap: 8px; color: var(--primary-dark); font-weight: 800; font-size: 1.25rem; flex-shrink: 0; text-decoration: none; }
.logo-icon { font-size: 1.4rem; color: var(--primary-light); }
.logo-accent { color: var(--primary-light); }
.main-nav .nav-list { display: flex; align-items: center; gap: 4px; }
.nav-link { display: inline-block; padding: 8px 16px; border-radius: var(--radius-full); font-weight: 500; font-size: 0.9rem; color: var(--text-light); transition: all var(--transition); text-decoration: none; }
.nav-link:hover { color: var(--primary-light); background: var(--primary-bg); }
.nav-link.active { color: var(--primary-light); background: var(--primary-bg); font-weight: 600; }
.nav-link.nav-cta { background: linear-gradient(135deg, var(--primary-medium), var(--primary-light)); color: var(--white); font-weight: 600; padding: 8px 20px; box-shadow: 0 2px 10px rgba(46,134,193,0.25); }
.nav-link.nav-cta:hover { box-shadow: 0 4px 16px rgba(46,134,193,0.4); transform: translateY(-1px); color: var(--white); }

.mobile-menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; z-index: 1001; width: 36px; height: 36px; align-items: center; justify-content: center; }
.mobile-menu-toggle span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: all var(--transition); transform-origin: center; }
.mobile-menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-menu-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.hero { position: relative; background: linear-gradient(155deg, #0f2b40 0%, #1a3c5e 30%, #1B4F72 60%, #1d5a82 100%); color: var(--white); padding: 80px 0 0 0; overflow: hidden; min-height: 500px; display: flex; align-items: center; }
.hero-content { position: relative; z-index: 2; text-align: center; padding-bottom: 50px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.12); backdrop-filter: blur(6px); border: 1px solid rgba(255,255,255,0.2); color: var(--white); font-size: 0.85rem; font-weight: 500; padding: 7px 18px; border-radius: var(--radius-full); margin-bottom: 24px; }
.hero-badge i { color: #5DDE8E; }
.hero-title { font-size: 2.4rem; font-weight: 800; color: var(--white); line-height: 1.15; margin-bottom: 8px; }
.hero-subtitle { font-size: 1.15rem; font-weight: 500; color: rgba(255,255,255,0.85); margin-bottom: 16px; }
.hero-description { font-size: 1rem; color: rgba(255,255,255,0.75); max-width: 560px; margin: 0 auto 30px; line-height: 1.6; }
.hero-buttons { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.hero-buttons .btn-outline { border-color: rgba(255,255,255,0.5); color: var(--white); }
.hero-buttons .btn-outline:hover { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.8); color: var(--white); }
.hero-wave { line-height: 0; margin-top: -1px; }
.hero-wave svg { width: 100%; height: auto; min-height: 50px; }

.page-hero { background: linear-gradient(155deg, #0f2b40 0%, #1a3c5e 40%, #1B4F72 100%); color: var(--white); padding: 60px 0 40px; text-align: center; }
.page-hero-title { font-size: 2rem; font-weight: 800; color: var(--white); margin-bottom: 8px; }
.page-hero-subtitle { font-size: 1.05rem; color: rgba(255,255,255,0.78); max-width: 500px; margin: 0 auto; }

.service-cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.service-card { background: var(--white); border-radius: var(--radius-lg); padding: 30px 26px; box-shadow: var(--shadow); border: 1px solid var(--border); transition: all var(--transition); position: relative; overflow: hidden; display: flex; flex-direction: column; }
.service-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); border-color: var(--primary-pale); }
.service-card-icon { width: 50px; height: 50px; border-radius: var(--radius); background: var(--primary-bg); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; color: var(--primary-light); margin-bottom: 16px; flex-shrink: 0; }
.service-card-alt .service-card-icon { background: #FDF2F5; color: #D45D7A; }
.service-card-title { font-size: 1.15rem; font-weight: 700; color: var(--primary-dark); margin-bottom: 8px; }
.service-card-desc { color: var(--text-light); font-size: 0.9rem; margin-bottom: 14px; flex-grow: 1; }
.service-card-features { margin-bottom: 16px; }
.service-card-features li { display: flex; align-items: center; gap: 6px; font-size: 0.85rem; color: var(--text-light); padding: 3px 0; }
.service-card-features li i { color: var(--success); font-size: 0.75rem; flex-shrink: 0; }
.delivery-note { display: inline-flex; align-items: center; gap: 8px; background: var(--primary-bg); padding: 10px 22px; border-radius: var(--radius-full); font-size: 0.9rem; color: var(--primary-dark); }

.cta-banner { background: linear-gradient(135deg, #EBF3FA 0%, #D4E6F1 50%, #EBF3FA 100%); }
.cta-title { font-size: 1.6rem; font-weight: 800; color: var(--primary-dark); margin-bottom: 10px; }
.cta-text { font-size: 1rem; color: var(--text-light); max-width: 500px; margin: 0 auto 24px; }

.service-detail-card { display: flex; gap: 28px; background: var(--white); border-radius: var(--radius-xl); padding: 32px; box-shadow: var(--shadow); border: 1px solid var(--border); margin-bottom: 28px; transition: all var(--transition); align-items: flex-start; border-left: 4px solid var(--primary-light); }
.service-detail-card--alt { border-left-color: #D45D7A; }
.service-detail-card:hover { box-shadow: var(--shadow-lg); }
.service-detail-icon { width: 60px; height: 60px; min-width: 60px; border-radius: var(--radius); background: var(--primary-bg); display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: var(--primary-light); flex-shrink: 0; }
.service-detail-card--alt .service-detail-icon { background: #FDF2F5; color: #D45D7A; }
.service-detail-body h2 { font-size: 1.4rem; color: var(--primary-dark); margin-bottom: 10px; }
.service-detail-body h2 small { font-weight: 500; font-size: 0.8rem; color: var(--text-muted); }
.service-lead { color: var(--text-light); margin-bottom: 16px; font-size: 0.95rem; }
.service-topics, .service-methods { margin-bottom: 14px; }
.service-topics h4, .service-methods h4 { font-size: 0.9rem; font-weight: 600; color: var(--primary-dark); margin-bottom: 8px; display: flex; align-items: center; gap: 6px; }
.service-topics ul, .service-methods ul { column-count: 2; column-gap: 20px; }
.service-topics ul li, .service-methods ul li { font-size: 0.85rem; color: var(--text-light); padding: 2px 0 2px 16px; position: relative; break-inside: avoid; }
.service-topics ul li::before { content: '•'; position: absolute; left: 0; color: var(--primary-light); font-weight: 700; }
.service-methods ul li::before { content: '✓'; position: absolute; left: 0; color: var(--success); font-weight: 700; font-size: 0.75rem; }
.delivery-info { display: inline-flex; align-items: center; gap: 6px; background: var(--primary-bg); padding: 8px 16px; border-radius: var(--radius-full); font-size: 0.85rem; color: var(--primary-dark); margin-bottom: 16px; }
.pricing-note { display: inline-flex; align-items: center; gap: 8px; background: var(--off-white); padding: 12px 24px; border-radius: var(--radius); font-size: 0.9rem; color: var(--text-light); border: 1px solid var(--border); }

.about-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: start; }
.about-text h2 { font-size: 1.5rem; color: var(--primary-dark); margin-bottom: 14px; }
.about-text h3 { font-size: 1.2rem; color: var(--primary-dark); margin-top: 24px; margin-bottom: 10px; }
.about-text p { color: var(--text-light); margin-bottom: 14px; font-size: 0.95rem; }
.about-highlight { background: var(--primary-bg); border-left: 3px solid var(--primary-light); padding: 16px 20px; border-radius: 0 var(--radius) var(--radius) 0; margin: 20px 0; position: relative; }
.about-highlight i { position: absolute; top: -10px; left: 14px; font-size: 1.3rem; color: var(--primary-light); opacity: 0.4; }
.about-highlight p { margin-bottom: 0; font-size: 1rem; font-style: italic; color: var(--primary-dark); }
.about-values { display: flex; flex-direction: column; gap: 12px; }
.value-card { background: var(--white); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: all var(--transition); display: flex; align-items: flex-start; gap: 12px; }
.value-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.value-card i { font-size: 1.2rem; color: var(--primary-light); flex-shrink: 0; margin-top: 2px; }
.value-card h4 { font-size: 0.9rem; font-weight: 700; color: var(--primary-dark); margin-bottom: 2px; }
.value-card p { font-size: 0.85rem; color: var(--text-muted); margin: 0; }

.contact-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: start; }
.contact-form-wrapper h2 { font-size: 1.4rem; color: var(--primary-dark); margin-bottom: 6px; }
.form-intro { color: var(--text-light); margin-bottom: 24px; font-size: 0.9rem; }
.contact-form .form-group { margin-bottom: 16px; }
.contact-form label { display: block; font-weight: 600; font-size: 0.85rem; color: var(--text); margin-bottom: 5px; }
.required { color: var(--error); }
.input-wrapper { position: relative; display: flex; align-items: center; }
.input-wrapper i { position: absolute; left: 14px; color: var(--gray-300); font-size: 0.9rem; pointer-events: none; z-index: 1; }
.input-wrapper input, .input-wrapper textarea { width: 100%; padding: 13px 14px 13px 40px; border: 2px solid var(--border); border-radius: var(--radius); font-family: var(--font); font-size: 0.9rem; color: var(--text); background: var(--white); transition: all var(--transition); outline: none; }
.textarea-wrapper i { top: 14px; }
.textarea-wrapper textarea { padding-left: 40px; resize: vertical; min-height: 110px; }
.input-wrapper input:focus, .input-wrapper textarea:focus { border-color: var(--primary-light); box-shadow: 0 0 0 3px rgba(46,134,193,0.08); }
.input-wrapper input.error, .input-wrapper textarea.error { border-color: var(--error); box-shadow: 0 0 0 3px rgba(220,38,38,0.06); }
.form-error { display: none; font-size: 0.78rem; color: var(--error); margin-top: 3px; font-weight: 500; }
.form-error.visible { display: block; }
.form-success { text-align: center; padding: 40px 20px; }
.success-icon { font-size: 3rem; color: var(--success); margin-bottom: 12px; }
.form-success h3 { font-size: 1.3rem; color: var(--text); margin-bottom: 6px; }
.form-success p { color: var(--text-light); margin-bottom: 20px; }
.contact-info-sidebar { display: flex; flex-direction: column; gap: 14px; }
.info-card { background: var(--white); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: all var(--transition); }
.info-card:hover { box-shadow: var(--shadow); }
.info-card i { font-size: 1.2rem; color: var(--primary-light); margin-bottom: 8px; }
.info-card h4 { font-size: 0.9rem; font-weight: 700; color: var(--primary-dark); margin-bottom: 3px; }
.info-card p, .info-card address { font-size: 0.85rem; color: var(--text-light); margin: 0; line-height: 1.5; }
.info-card a { color: var(--primary-light); font-weight: 500; }

.site-footer { background: #0f2b40; color: rgba(255,255,255,0.75); padding-top: 48px; margin-top: auto; }
.footer-container { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 32px; padding-bottom: 32px; }
.footer-logo { font-size: 1.2rem; font-weight: 800; color: var(--white); display: flex; align-items: center; gap: 6px; margin-bottom: 8px; }
.footer-logo .logo-accent { color: var(--accent-glow); }
.footer-tagline { font-size: 0.85rem; color: rgba(255,255,255,0.5); }
.footer-links h4, .footer-contact-info h4 { color: var(--white); font-size: 0.9rem; font-weight: 600; margin-bottom: 10px; }
.footer-links ul li { margin-bottom: 5px; }
.footer-links ul li a { color: rgba(255,255,255,0.6); font-size: 0.85rem; }
.footer-links ul li a:hover { color: var(--white); }
.footer-contact-info address p { margin-bottom: 5px; font-size: 0.85rem; display: flex; align-items: flex-start; gap: 6px; }
.footer-contact-info address i { color: var(--accent-glow); flex-shrink: 0; margin-top: 3px; }
.footer-contact-info a { color: rgba(255,255,255,0.7); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 14px 0; text-align: center; font-size: 0.8rem; color: rgba(255,255,255,0.4); }

.mobile-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 999; opacity: 0; pointer-events: none; transition: opacity 0.3s; }
.mobile-backdrop.active { opacity: 1; pointer-events: auto; }

@media (max-width: 1024px) {
    .about-grid { grid-template-columns: 1fr; gap: 30px; }
    .about-values { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .contact-grid { grid-template-columns: 1fr; gap: 30px; }
    .contact-info-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .footer-container { grid-template-columns: 1fr 1fr; gap: 28px; }
    .hero-title { font-size: 2rem; }
}

@media (max-width: 768px) {
    .container { padding: 0 16px; }
    .section-padding { padding: 44px 0; }
    .section-title { font-size: 1.5rem; }
    
    .mobile-menu-toggle { display: flex; position: relative; z-index: 1001; }
    .main-nav { position: fixed; top: 0; right: -320px; width: 280px; max-width: 85vw; height: 100vh; height: 100dvh; background: var(--white); box-shadow: -4px 0 24px rgba(0,0,0,0.15); padding: 72px 24px 24px; transition: right 0.35s cubic-bezier(0.4,0,0.2,1); z-index: 1000; overflow-y: auto; }
    .main-nav.open { right: 0; }
    .main-nav .nav-list { flex-direction: column; gap: 2px; }
    .nav-link { display: block; padding: 12px 16px; font-size: 1rem; border-radius: var(--radius); }
    .nav-link.nav-cta { display: block; text-align: center; margin-top: 8px; }

    .hero { min-height: auto; padding: 60px 0 0 0; }
    .hero-title { font-size: 1.6rem; }
    .hero-subtitle { font-size: 1rem; }
    .hero-description { font-size: 0.9rem; }
    .hero-buttons { flex-direction: column; align-items: stretch; }
    .hero-buttons .btn { width: 100%; }
    .page-hero { padding: 44px 0 32px; }
    .page-hero-title { font-size: 1.6rem; }
    
    .service-cards-grid { grid-template-columns: 1fr; }
    .service-detail-card { flex-direction: column; gap: 16px; padding: 24px 20px; }
    .service-detail-icon { width: 48px; height: 48px; min-width: 48px; font-size: 1.2rem; }
    .service-topics ul, .service-methods ul { column-count: 1; }
    
    .about-values { grid-template-columns: 1fr; }
    .contact-info-sidebar { grid-template-columns: 1fr; }
    .footer-container { grid-template-columns: 1fr; gap: 24px; text-align: center; }
    .footer-brand { text-align: center; }
    .footer-logo { justify-content: center; }
    .footer-contact-info address p { justify-content: center; }
    .btn-lg { padding: 14px 26px; font-size: 0.95rem; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 1.4rem; }
    .hero { padding: 50px 0 0 0; }
    .hero-content { padding-bottom: 36px; }
    .section-title { font-size: 1.3rem; }
    .page-hero-title { font-size: 1.4rem; }
    .service-card { padding: 22px 16px; }
    .service-detail-card { padding: 20px 14px; }
    .cta-title { font-size: 1.3rem; }
}