:root {
  --navy: #0B1F3A;
  --blue: #1A56A0;
  --sky: #3B82F6;
  --accent: #F97316;
  --light: #F4F7FB;
  --white: #FFFFFF;
  --text: #1E293B;
  --muted: #64748B;
  --border: #E2E8F0;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(11,31,58,0.08);
  --shadow-md: 0 8px 40px rgba(11,31,58,0.14);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'DM Sans', sans-serif; color: var(--text); background: var(--white); line-height: 1.65; font-size: 16px; }

/* NAV */
nav { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,0.97); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); padding: 0 5%; display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-family: 'Fraunces', serif; font-weight: 600; font-size: 1.5rem; color: var(--navy); text-decoration: none; display: flex; align-items: center; gap: 10px; }
.logo-icon { width: 36px; height: 36px; background: var(--blue); border-radius: 8px; display: flex; align-items: center; justify-content: center; }
.logo-icon svg { width: 20px; height: 20px; }
.nav-links { display: flex; align-items: center; gap: 2px; list-style: none; }
.nav-links > li > a { text-decoration: none; color: var(--text); font-size: 0.9rem; font-weight: 500; padding: 8px 14px; border-radius: 8px; transition: background 0.2s, color 0.2s; display: block; }
.nav-links > li > a:hover { background: var(--light); color: var(--blue); }
.nav-links > li > a.active { background: var(--light); color: var(--blue); }
.nav-cta { background: var(--accent) !important; color: white !important; font-weight: 600 !important; border-radius: 8px; }
.nav-cta:hover { opacity: 0.88 !important; background: var(--accent) !important; }
.dropdown { position: relative; }
.dropdown-toggle { display: flex !important; align-items: center; gap: 5px; user-select: none; cursor: pointer; }
.arrow { font-size: 0.65rem; transition: transform 0.2s; display: inline-block; }
.dropdown.open .arrow { transform: rotate(180deg); }
.dropdown-menu { display: none; position: absolute; top: calc(100% + 6px); left: 0; background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-md); padding: 8px; min-width: 240px; z-index: 2000; }
.dropdown.open .dropdown-menu { display: block; }
.dropdown-menu li { list-style: none; }
.dropdown-menu li a { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 8px; text-decoration: none; color: var(--text); font-size: 0.875rem; font-weight: 500; transition: background 0.15s; }
.dropdown-menu li a:hover { background: var(--light); color: var(--blue); }
.dropdown-menu li a .di { font-size: 1rem; width: 22px; text-align: center; }
.mob-btn { display: none; background: none; border: 1px solid var(--border); border-radius: 8px; cursor: pointer; padding: 7px 11px; font-size: 1.2rem; }
.mob-nav { display: none; flex-direction: column; background: var(--white); border-bottom: 1px solid var(--border); padding: 10px 5%; }
.mob-nav.open { display: flex; }
.mob-nav a { padding: 11px 4px; text-decoration: none; color: var(--text); font-size: 0.95rem; border-bottom: 1px solid var(--border); }
.mob-nav a:last-child { border-bottom: none; }
@media (max-width: 768px) { .nav-links { display: none; } .mob-btn { display: block; } }

/* HERO */
.hero { background: linear-gradient(135deg, var(--navy) 0%, #1A3A6B 60%, #1A56A0 100%); color: white; padding: 90px 5% 80px; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0; background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/svg%3E"); }
.hero-inner { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; }
.hero-badge { display: inline-block; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2); color: #93C5FD; font-size: 0.73rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; padding: 6px 14px; border-radius: 100px; margin-bottom: 20px; }
.hero h1 { font-family: 'Fraunces', serif; font-weight: 300; font-size: clamp(2rem, 3.8vw, 3rem); line-height: 1.2; margin-bottom: 18px; }
.hero h1 em { font-style: italic; color: #93C5FD; }
.hero-text p { font-size: 1.05rem; color: rgba(255,255,255,0.8); margin-bottom: 32px; max-width: 480px; }
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-primary { background: var(--accent); color: white; padding: 13px 28px; border-radius: 8px; text-decoration: none; font-weight: 600; font-size: 0.95rem; border: none; cursor: pointer; transition: opacity 0.2s, transform 0.15s; display: inline-block; }
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-outline { background: transparent; color: white; padding: 13px 28px; border-radius: 8px; font-weight: 500; font-size: 0.95rem; border: 1px solid rgba(255,255,255,0.35); cursor: pointer; transition: background 0.2s; display: inline-block; text-decoration: none; }
.btn-outline:hover { background: rgba(255,255,255,0.1); }
.hero-visual { display: flex; flex-direction: column; gap: 10px; }
.hero-card { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15); border-radius: var(--radius); padding: 15px 18px; display: flex; align-items: center; gap: 14px; backdrop-filter: blur(6px); transition: transform 0.25s; }
.hero-card:hover { transform: translateX(5px); }
.hero-card-icon { width: 40px; height: 40px; background: rgba(59,130,246,0.25); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.15rem; flex-shrink: 0; }
.hero-card h4 { font-size: 0.875rem; font-weight: 600; color: white; }
.hero-card p { font-size: 0.73rem; color: rgba(255,255,255,0.6); margin: 0; }

/* IOT BANNER */
.iot-wrap { padding: 28px 5% 0; background: var(--white); }
.iot-inner { max-width: 1100px; margin: 0 auto; }
.iot-banner { background: linear-gradient(135deg, #0B1F3A 0%, #1a3a6b 50%, #1e5799 100%); border-radius: var(--radius); padding: 26px 36px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; border: 1px solid rgba(59,130,246,0.3); position: relative; overflow: hidden; text-decoration: none; transition: transform 0.2s, box-shadow 0.2s; }
.iot-banner:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(11,31,58,0.22); }
.iot-banner::before { content: ''; position: absolute; top: -40px; right: -40px; width: 180px; height: 180px; border-radius: 50%; background: rgba(59,130,246,0.07); pointer-events: none; }
.iot-left { display: flex; align-items: center; gap: 18px; }
.iot-icon { width: 52px; height: 52px; background: rgba(249,115,22,0.15); border: 1px solid rgba(249,115,22,0.3); border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; flex-shrink: 0; }
.iot-text h3 { color: white; font-size: 1.05rem; font-weight: 600; margin-bottom: 4px; }
.iot-text p { color: rgba(255,255,255,0.65); font-size: 0.83rem; margin: 0; }
.iot-cta { background: var(--accent); color: white; padding: 11px 22px; border-radius: 8px; font-weight: 600; font-size: 0.88rem; white-space: nowrap; flex-shrink: 0; display: inline-block; position: relative; z-index: 1; transition: opacity 0.2s; }
.iot-cta:hover { opacity: 0.9; }

/* STATS */
.stats { background: var(--white); border-bottom: 1px solid var(--border); padding: 40px 5%; }
.stats-inner { max-width: 900px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); text-align: center; gap: 20px; }
.stat-num { font-family: 'Fraunces', serif; font-size: 2.1rem; font-weight: 600; color: var(--blue); line-height: 1; }
.stat-label { font-size: 0.8rem; color: var(--muted); margin-top: 4px; }

/* SECTIONS */
.section { padding: 76px 5%; }
.section-light { background: var(--light); }
.section-inner { max-width: 1100px; margin: 0 auto; }
.section-label { font-size: 0.73rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--blue); margin-bottom: 10px; }
.section-title { font-family: 'Fraunces', serif; font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 300; color: var(--navy); margin-bottom: 14px; line-height: 1.25; }
.intro-block { max-width: 700px; margin: 0 auto 48px; text-align: center; }
.section-sub { color: var(--muted); font-size: 1rem; }

/* CARDS */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; }
.card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; transition: box-shadow 0.25s, transform 0.25s; }
.card.click { cursor: pointer; }
.card.click:hover, .card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.card-icon { width: 46px; height: 46px; border-radius: 10px; background: var(--light); display: flex; align-items: center; justify-content: center; font-size: 1.35rem; margin-bottom: 14px; }
.card h3 { font-size: 1rem; font-weight: 600; color: var(--navy); margin-bottom: 8px; }
.card p { font-size: 0.875rem; color: var(--muted); line-height: 1.65; }

/* PAGE HERO */
.page-hero { background: linear-gradient(135deg, var(--navy) 0%, #1A3A6B 100%); color: white; padding: 70px 5% 58px; }
.page-hero-inner { max-width: 800px; margin: 0 auto; }
.page-badge { display: inline-block; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2); color: #93C5FD; font-size: 0.73rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; padding: 6px 14px; border-radius: 100px; margin-bottom: 20px; }
.page-hero h1 { font-family: 'Fraunces', serif; font-size: clamp(1.9rem, 3.5vw, 2.6rem); font-weight: 300; line-height: 1.2; margin-bottom: 14px; }
.page-hero p { color: rgba(255,255,255,0.78); font-size: 1rem; max-width: 600px; }

/* BRAND STRIP */
.brand-strip { background: var(--white); padding: 30px 5%; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.brand-strip-inner { max-width: 1000px; margin: 0 auto; display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap; }
.brand-label { font-size: 0.73rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; width: 100%; text-align: center; margin-bottom: 14px; }
.brand-pill { background: var(--light); border: 1px solid var(--border); border-radius: 100px; padding: 7px 18px; font-size: 0.82rem; font-weight: 600; color: var(--navy); }

/* TWO COL */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.two-col-text h2 { font-family: 'Fraunces', serif; font-size: clamp(1.5rem, 2.5vw, 2rem); font-weight: 300; color: var(--navy); margin-bottom: 16px; }
.two-col-text p { color: var(--muted); margin-bottom: 14px; line-height: 1.7; font-size: 0.95rem; }

/* FEATURE LIST */
.feat { list-style: none; display: flex; flex-direction: column; gap: 11px; }
.feat li { display: flex; gap: 12px; align-items: flex-start; font-size: 0.9rem; color: var(--text); }
.feat li::before { content: '✓'; background: #DBEAFE; color: var(--blue); font-weight: 700; font-size: 0.68rem; width: 20px; height: 20px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 2px; }

/* TIMELINE */
.timeline { display: flex; flex-direction: column; position: relative; }
.timeline::before { content: ''; position: absolute; left: 19px; top: 0; bottom: 0; width: 2px; background: var(--border); }
.tl-item { display: flex; gap: 22px; padding-bottom: 30px; position: relative; }
.tl-dot { width: 40px; height: 40px; border-radius: 50%; background: var(--blue); color: white; font-weight: 700; font-size: 0.85rem; display: flex; align-items: center; justify-content: center; flex-shrink: 0; position: relative; z-index: 1; }
.tl-body h3 { font-size: 1rem; font-weight: 600; color: var(--navy); margin-bottom: 5px; }
.tl-body p { font-size: 0.875rem; color: var(--muted); }

/* CTA BAND */
.cta-band { background: linear-gradient(135deg, var(--navy), #1A56A0); color: white; padding: 64px 5%; text-align: center; }
.cta-band h2 { font-family: 'Fraunces', serif; font-size: clamp(1.7rem, 3vw, 2.3rem); font-weight: 300; margin-bottom: 12px; }
.cta-band p { color: rgba(255,255,255,0.78); margin-bottom: 28px; font-size: 1rem; }

/* CONTACT */
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 56px; align-items: start; }
.ci h3 { font-family: 'Fraunces', serif; font-size: 1.4rem; font-weight: 300; color: var(--navy); margin-bottom: 12px; }
.ci > p { color: var(--muted); margin-bottom: 24px; font-size: 0.95rem; }
.cd { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 18px; }
.cd-icon { width: 40px; height: 40px; background: var(--light); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1rem; flex-shrink: 0; }
.cd strong { display: block; font-size: 0.8rem; color: var(--navy); font-weight: 600; }
.cd span { font-size: 0.875rem; color: var(--muted); }
.form-card { background: var(--white); border: 1px solid var(--border); border-radius: 16px; padding: 34px; box-shadow: var(--shadow); }
.form-card h3 { font-family: 'Fraunces', serif; font-weight: 300; font-size: 1.3rem; color: var(--navy); margin-bottom: 5px; }
.form-card > p { color: var(--muted); font-size: 0.83rem; margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
.fg { margin-bottom: 15px; }
.fg label { display: block; font-size: 0.8rem; font-weight: 600; color: var(--navy); margin-bottom: 5px; }
.fg input, .fg select, .fg textarea { width: 100%; padding: 10px 12px; border: 1.5px solid var(--border); border-radius: 8px; font-family: inherit; font-size: 0.875rem; color: var(--text); background: var(--white); transition: border-color 0.2s; outline: none; }
.fg input:focus, .fg select:focus, .fg textarea:focus { border-color: var(--sky); }
.fg textarea { resize: vertical; min-height: 108px; }
.form-btn { width: 100%; background: var(--blue); color: white; border: none; padding: 13px; border-radius: 8px; font-family: inherit; font-size: 1rem; font-weight: 600; cursor: pointer; transition: background 0.2s; }
.form-btn:hover { background: var(--navy); }
.form-ok { display: none; background: #DCFCE7; border: 1px solid #86EFAC; color: #166534; border-radius: 8px; padding: 14px; text-align: center; margin-top: 12px; font-size: 0.875rem; }
.captcha-box { background: var(--light); border: 1.5px solid var(--border); border-radius: 10px; padding: 14px 16px; margin-bottom: 16px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.captcha-question { font-size: 0.95rem; font-weight: 600; color: var(--navy); white-space: nowrap; }
.captcha-input { width: 70px !important; text-align: center; font-size: 1rem !important; font-weight: 600 !important; }
.captcha-status { font-size: 0.78rem; font-weight: 600; display: none; }
.captcha-status.ok { color: #16A34A; display: inline; }
.captcha-status.bad { color: #DC2626; display: inline; }
.captcha-refresh { background: none; border: none; cursor: pointer; font-size: 1rem; color: var(--muted); padding: 2px 6px; border-radius: 6px; transition: color 0.2s, background 0.2s; }
.captcha-refresh:hover { background: var(--border); color: var(--navy); }

/* FOOTER */
footer { background: var(--navy); color: rgba(255,255,255,0.7); padding: 58px 5% 26px; }
.footer-inner { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 38px; }
.fb p { font-size: 0.875rem; line-height: 1.7; }
.fc h4 { font-size: 0.78rem; font-weight: 600; color: white; margin-bottom: 14px; text-transform: uppercase; letter-spacing: 0.06em; }
.fc ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.fc ul li a { color: rgba(255,255,255,0.6); text-decoration: none; font-size: 0.875rem; transition: color 0.2s; }
.fc ul li a:hover { color: white; }
.footer-bot { max-width: 1100px; margin: 0 auto; padding-top: 22px; border-top: 1px solid rgba(255,255,255,0.1); display: flex; justify-content: space-between; align-items: center; font-size: 0.76rem; flex-wrap: wrap; gap: 8px; }

/* RESPONSIVE */
@media (max-width: 900px) {
  .two-col { grid-template-columns: 1fr; gap: 30px; }
  .contact-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .stats-inner { grid-template-columns: repeat(2,1fr); }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .iot-banner { flex-direction: column; align-items: flex-start; gap: 16px; }
}