@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

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

:root {
  --bg: #050a14;
  --bg2: #0a1628;
  --bg3: #0d1f3c;
  --cyan: #00d4ff;
  --cyan2: #00aacc;
  --neon: #00ffcc;
  --text: #e2e8f0;
  --muted: #7a8fa6;
  --card: #0f1e35;
  --border: #1a3050;
  --glow: 0 0 20px rgba(0, 212, 255, 0.3);
  --glow2: 0 0 40px rgba(0, 212, 255, 0.15);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }

/* ── NAVBAR ── */
nav {
  position: fixed; top: 0; width: 100%; z-index: 1000;
  background: rgba(5, 10, 20, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 5%;
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}

.nav-brand {
  display: flex; align-items: center; gap: 10px;
}

.nav-brand img {
  width: 38px; height: 38px; border-radius: 8px;
  box-shadow: var(--glow);
}

.nav-brand span {
  font-size: 1.4rem; font-weight: 800;
  letter-spacing: -0.5px;
}

.nav-brand .logo-zyn {
  color: #00d4ff;
  text-shadow: 0 0 12px rgba(0, 212, 255, 0.5);
}

.nav-brand .logo-tax {
  color: #c0c8d8;
  text-shadow: 0 0 8px rgba(192, 200, 216, 0.3);
}

.nav-links {
  display: flex; gap: 2rem; list-style: none;
}

.nav-links a {
  font-size: 0.9rem; font-weight: 500; color: var(--muted);
  transition: color 0.2s;
  position: relative;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--cyan);
}

.nav-links a.active::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 100%; height: 2px;
  background: var(--cyan);
  border-radius: 2px;
}

.nav-cta {
  background: linear-gradient(135deg, var(--cyan), var(--neon));
  color: #000 !important;
  padding: 8px 20px; border-radius: 8px;
  font-weight: 700 !important; font-size: 0.85rem !important;
  transition: opacity 0.2s, transform 0.2s !important;
}

.nav-cta:hover { opacity: 0.85; transform: translateY(-1px); }

.hamburger {
  display: none; flex-direction: column; gap: 5px; cursor: pointer;
  background: none; border: none; padding: 4px;
}

.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--cyan); border-radius: 2px;
  transition: all 0.3s;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: 10px;
  font-weight: 600; font-size: 0.95rem; cursor: pointer;
  transition: all 0.25s; border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--cyan), var(--neon));
  color: #000;
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.5);
}

.btn-outline {
  background: transparent;
  color: var(--cyan);
  border: 1.5px solid var(--cyan);
}

.btn-outline:hover {
  background: rgba(0, 212, 255, 0.08);
  transform: translateY(-2px);
}

/* ── SECTION COMMONS ── */
section { padding: 90px 5%; }

.section-tag {
  display: inline-block;
  background: rgba(0, 212, 255, 0.1);
  color: var(--cyan);
  border: 1px solid rgba(0, 212, 255, 0.3);
  padding: 4px 14px; border-radius: 20px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 1px;
  text-transform: uppercase; margin-bottom: 14px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800; line-height: 1.2;
  margin-bottom: 16px;
}

.section-title span {
  background: linear-gradient(135deg, var(--cyan), var(--neon));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-sub {
  color: var(--muted); font-size: 1rem; max-width: 560px;
}

.text-center { text-align: center; }
.text-center .section-sub { margin: 0 auto; }

/* ── CARDS ── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  transition: all 0.3s;
}

.card:hover {
  border-color: rgba(0, 212, 255, 0.4);
  box-shadow: var(--glow2);
  transform: translateY(-4px);
}

.card-icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: 18px;
}

.card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 0.9rem; }

/* ── GRID ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ── FORMS ── */
.form-group { margin-bottom: 20px; }

.form-group label {
  display: block; font-size: 0.85rem; font-weight: 600;
  color: var(--text); margin-bottom: 8px;
}

.form-group label span { color: var(--cyan); }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--bg3);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  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(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-group select option { background: var(--bg2); }
.form-group textarea { resize: vertical; min-height: 120px; }

/* ── FOOTER ── */
footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 60px 5% 30px;
}

.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px; margin-bottom: 40px;
}

.footer-brand img { width: 40px; border-radius: 8px; margin-bottom: 12px; }

.footer-brand .brand-name {
  font-size: 1.3rem; font-weight: 800;
  background: linear-gradient(135deg, var(--cyan), var(--neon));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; margin-bottom: 10px;
}

.footer-brand p { color: var(--muted); font-size: 0.88rem; line-height: 1.7; }

.footer-col h4 {
  font-size: 0.85rem; font-weight: 700; color: var(--cyan);
  text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px;
}

.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: var(--muted); font-size: 0.88rem; transition: color 0.2s; }
.footer-col ul li a:hover { color: var(--cyan); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
}

.footer-bottom p { color: var(--muted); font-size: 0.82rem; }

.footer-bottom .tagline {
  color: var(--cyan); font-weight: 600; font-size: 0.82rem;
}

/* ── WHATSAPP FLOAT ── */
.whatsapp-float {
  position: fixed; bottom: 28px; right: 28px; z-index: 999;
  width: 56px; height: 56px; border-radius: 50%;
  background: #25d366;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.5);
  transition: transform 0.2s, box-shadow 0.2s;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.7);
}

.whatsapp-float svg { width: 28px; height: 28px; fill: #fff; }

/* ── PAGE HERO ── */
.page-hero {
  padding: 140px 5% 80px;
  background: radial-gradient(ellipse at 50% 0%, rgba(0,212,255,0.08) 0%, transparent 70%);
  text-align: center;
}

/* ── BADGE ── */
.badge {
  display: inline-block;
  background: rgba(0, 255, 204, 0.1);
  color: var(--neon);
  border: 1px solid rgba(0, 255, 204, 0.3);
  padding: 3px 12px; border-radius: 20px;
  font-size: 0.75rem; font-weight: 600;
}

/* ── DIVIDER ── */
.divider {
  width: 60px; height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--neon));
  border-radius: 2px; margin: 16px auto 0;
}

/* ── POPUP ── */
#zynPopup {
  position: fixed; inset: 0; z-index: 99999;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s;
}

#zynPopup.show {
  opacity: 1; pointer-events: all;
}

.popup-box {
  background: var(--card);
  border: 1px solid rgba(0, 212, 255, 0.35);
  border-radius: 24px;
  padding: 48px 40px;
  text-align: center;
  max-width: 420px; width: 90%;
  box-shadow: 0 0 60px rgba(0, 212, 255, 0.2);
  transform: scale(0.85);
  transition: transform 0.3s;
}

#zynPopup.show .popup-box {
  transform: scale(1);
}

.popup-icon {
  width: 80px; height: 80px; border-radius: 50%;
  background: rgba(0, 255, 204, 0.1);
  border: 2px solid var(--neon);
  display: flex; align-items: center; justify-content: center;
  font-size: 2.2rem; color: var(--neon);
  margin: 0 auto 24px;
  box-shadow: 0 0 30px rgba(0, 255, 204, 0.25);
  animation: popIn 0.4s ease;
}

@keyframes popIn {
  0% { transform: scale(0.5); opacity: 0; }
  70% { transform: scale(1.15); }
  100% { transform: scale(1); opacity: 1; }
}

.popup-box h3 {
  font-size: 1.3rem; font-weight: 800; margin-bottom: 12px;
  background: linear-gradient(135deg, var(--cyan), var(--neon));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.popup-box p {
  color: var(--muted); font-size: 0.95rem;
  line-height: 1.7; margin-bottom: 28px;
}

.popup-ok {
  background: linear-gradient(135deg, var(--cyan), var(--neon));
  color: #000;
  border: none; border-radius: 12px;
  padding: 13px 48px;
  font-size: 1rem; font-weight: 700;
  cursor: pointer;
  transition: all 0.25s;
}

.popup-ok:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0, 212, 255, 0.4);
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; flex-direction: column; gap: 0; }
  .nav-links.open {
    display: flex;
    position: absolute; top: 68px; left: 0; width: 100%;
    background: rgba(5, 10, 20, 0.98);
    border-bottom: 1px solid var(--border);
    padding: 16px 5%;
  }
  .nav-links.open li { padding: 12px 0; border-bottom: 1px solid var(--border); }
  .hamburger { display: flex; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  section { padding: 70px 5%; }
}