/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; color: #0d1b2a; background: #fff; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ===== VARIABLES — X3 Identity (Blue / Silver / Dark Navy) ===== */
:root {
  --navy:    #0a1628;
  --navy2:   #0d2045;
  --blue:    #1565c0;
  --blue-l:  #1e88e5;
  --blue-gl: #42a5f5;
  --silver:  #8fa8c8;
  --silver-l:#c8d8ec;
  --light-bg:#f0f4f8;
  --border:  #d0dce8;
  --text-m:  #4a6080;
  --white:   #ffffff;
  --radius:  12px;
  --shadow:  0 4px 28px rgba(21,101,192,0.12);
  --glow:    0 0 32px rgba(30,136,229,0.25);
}

/* ===== UTILITIES ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.tag { display: inline-block; background: #e3edf9; color: var(--blue); font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; padding: 4px 14px; border-radius: 99px; margin-bottom: 12px; }
.tag-light { background: rgba(255,255,255,0.12); color: rgba(255,255,255,0.9); }
.section-header { text-align: center; margin-bottom: 56px; }
.section-header h2 { font-size: 2.2rem; font-weight: 800; color: var(--navy); margin-bottom: 12px; }
.section-header p { color: var(--text-m); font-size: 1.05rem; max-width: 560px; margin: 0 auto; }
.section-header.light h2 { color: #fff; }
.section-header.light p { color: rgba(255,255,255,0.7); }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; border-radius: 8px; font-weight: 700; font-size: 0.95rem; cursor: pointer; border: 2px solid transparent; transition: all 0.22s; }
.btn-primary { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn-primary:hover { background: var(--blue-l); border-color: var(--blue-l); transform: translateY(-2px); box-shadow: var(--glow); }
.btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,0.5); }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; transform: translateY(-2px); }
.full-width { width: 100%; justify-content: center; }

/* ===== NAVBAR ===== */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 999; background: rgba(10,22,40,0.97); backdrop-filter: blur(12px); padding: 10px 0; transition: all 0.3s; border-bottom: 1px solid rgba(255,255,255,0.06); }
.navbar.scrolled { box-shadow: 0 2px 24px rgba(0,0,0,0.5); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.nav-logo { height: 50px; width: auto; border-radius: 8px; object-fit: cover; }
.nav-links { display: flex; gap: 32px; }
.nav-links a { color: rgba(255,255,255,0.8); font-weight: 600; font-size: 0.95rem; transition: color 0.2s; position: relative; }
.nav-links a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: var(--blue-gl); transition: width 0.25s; border-radius: 2px; }
.nav-links a:hover { color: var(--blue-gl); }
.nav-links a:hover::after { width: 100%; }
.menu-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; }

/* ===== HERO ===== */
.hero { position: relative; min-height: 100vh; background: linear-gradient(135deg, #060e1a 0%, #0a1e38 45%, #0d2d5c 100%); display: flex; align-items: center; padding-top: 80px; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -30%; right: -15%; width: 800px; height: 800px; background: radial-gradient(circle, rgba(21,101,192,0.2) 0%, transparent 65%); pointer-events: none; }
.hero::after { content: ''; position: absolute; bottom: -20%; left: -10%; width: 600px; height: 600px; background: radial-gradient(circle, rgba(66,165,245,0.1) 0%, transparent 65%); pointer-events: none; }
.hero-particles { position: absolute; inset: 0; background-image: radial-gradient(circle, rgba(255,255,255,0.04) 1px, transparent 1px); background-size: 40px 40px; pointer-events: none; }
.hero-content { position: relative; z-index: 2; max-width: 750px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(21,101,192,0.25); border: 1px solid rgba(66,165,245,0.35); color: var(--blue-gl); font-size: 0.82rem; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; padding: 6px 18px; border-radius: 99px; margin-bottom: 24px; }
.hero-content h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 900; color: #fff; line-height: 1.12; margin-bottom: 22px; }
.highlight { background: linear-gradient(90deg, var(--blue-l), var(--blue-gl)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-content p { color: rgba(255,255,255,0.68); font-size: 1.12rem; max-width: 580px; margin-bottom: 38px; line-height: 1.75; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-wave { position: absolute; bottom: 0; left: 0; right: 0; line-height: 0; }
.hero-wave svg { width: 100%; height: 60px; }

/* ===== SOBRE ===== */
.sobre { padding: 100px 0; background: var(--light-bg); }
.sobre-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.sobre-text h2 { font-size: 2.1rem; font-weight: 800; color: var(--navy); line-height: 1.2; margin-bottom: 20px; }
.sobre-text p { color: var(--text-m); font-size: 1rem; line-height: 1.78; margin-bottom: 16px; }
.sobre-text .btn { margin-top: 8px; }
.sobre-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.mini-card { background: #fff; border-radius: var(--radius); padding: 24px 20px; box-shadow: var(--shadow); border: 1px solid var(--border); transition: transform 0.22s, box-shadow 0.22s; }
.mini-card:hover { transform: translateY(-4px); box-shadow: var(--glow); border-color: var(--blue-l); }
.mini-card i { font-size: 1.6rem; color: var(--blue); margin-bottom: 12px; }
.mini-card h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 6px; color: var(--navy); }
.mini-card p { font-size: 0.85rem; color: var(--text-m); line-height: 1.55; }

/* ===== SERVIÇOS ===== */
.servicos { padding: 100px 0; background: #fff; }
.servicos-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.card-servico { background: var(--light-bg); border-radius: var(--radius); padding: 28px 24px; border: 1px solid var(--border); transition: all 0.25s; }
.card-servico:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: var(--blue); background: #fff; }
.card-icon { width: 52px; height: 52px; border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.card-icon i { font-size: 1.35rem; color: #fff; }
.bg-blue   { background: linear-gradient(135deg, var(--blue), var(--blue-l)); }
.bg-silver { background: linear-gradient(135deg, #607d9e, #8fa8c8); }
.card-servico h3 { font-size: 1rem; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
.card-servico p { font-size: 0.875rem; color: var(--text-m); line-height: 1.65; }

/* ===== DIFERENCIAIS ===== */
.diferenciais { padding: 100px 0; background: linear-gradient(150deg, #060e1a 0%, #0a1e38 50%, #0d2d5c 100%); position: relative; overflow: hidden; }
.diferenciais::before { content: ''; position: absolute; inset: 0; background-image: radial-gradient(circle, rgba(255,255,255,0.025) 1px, transparent 1px); background-size: 36px 36px; pointer-events: none; }
.dif-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 32px; position: relative; }
.dif-item { text-align: center; padding: 36px 24px; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.07); border-radius: var(--radius); transition: all 0.25s; }
.dif-item:hover { background: rgba(21,101,192,0.15); border-color: rgba(66,165,245,0.3); transform: translateY(-4px); }
.dif-icon { width: 58px; height: 58px; background: linear-gradient(135deg, var(--blue), var(--blue-l)); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; }
.dif-icon i { font-size: 1.4rem; color: #fff; }
.dif-item h3 { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 10px; }
.dif-item p { font-size: 0.875rem; color: rgba(255,255,255,0.6); line-height: 1.65; }

/* ===== CONTATO ===== */
.contato { padding: 100px 0; background: var(--light-bg); }
.contato-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 64px; align-items: start; }
.contato-info h2 { font-size: 2rem; font-weight: 800; color: var(--navy); margin-bottom: 16px; }
.contato-info p { color: var(--text-m); font-size: 1rem; line-height: 1.7; margin-bottom: 28px; }
.contato-lista { display: flex; flex-direction: column; gap: 16px; margin-bottom: 32px; }
.contato-lista li { display: flex; align-items: center; gap: 12px; color: var(--text-m); font-size: 0.95rem; }
.contato-lista i { color: var(--blue); font-size: 1.1rem; width: 20px; text-align: center; }
.contato-slogan { background: linear-gradient(135deg, var(--navy), var(--navy2)); color: rgba(255,255,255,0.7); padding: 20px 24px; border-radius: var(--radius); font-size: 0.95rem; line-height: 1.6; border-left: 4px solid var(--blue-l); }
.contato-slogan strong { color: var(--blue-gl); font-size: 1.05rem; }
.contato-form { background: #fff; border-radius: var(--radius); padding: 40px 36px; box-shadow: var(--shadow); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.875rem; font-weight: 600; color: var(--navy); margin-bottom: 6px; }
.form-group input,
.form-group select,
.form-group textarea { width: 100%; padding: 12px 16px; border: 1.5px solid var(--border); border-radius: 8px; font-size: 0.95rem; font-family: 'Inter', sans-serif; color: var(--navy); background: #fff; transition: border-color 0.2s, box-shadow 0.2s; outline: none; }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(21,101,192,0.12); }
.form-group textarea { resize: vertical; }

/* ===== FOOTER ===== */
.footer { background: var(--navy); padding: 40px 0; text-align: center; border-top: 1px solid rgba(255,255,255,0.06); }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.footer-logo { height: 54px; width: auto; border-radius: 8px; object-fit: cover; margin-bottom: 4px; }
.footer p { color: rgba(255,255,255,0.7); font-size: 0.9rem; }
.footer-sub { color: rgba(255,255,255,0.35); font-size: 0.82rem; letter-spacing: 1px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .sobre-grid, .contato-grid { grid-template-columns: 1fr; gap: 40px; }
  .sobre-cards { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 70px; left: 0; right: 0; background: rgba(10,22,40,0.98); padding: 20px 24px; gap: 16px; box-shadow: 0 8px 24px rgba(0,0,0,0.4); }
  .nav-links.open { display: flex; }
  .menu-toggle { display: block; }
  .sobre-cards { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .contato-form { padding: 28px 20px; }
  .section-header h2 { font-size: 1.7rem; }
  .hero-content h1 { font-size: 2rem; }
}