/* ===== GLOBAL RESET ===== */
:root {
  --bg: #07111f;
  --bg-soft: #0d1a2b;
  --panel: #102033;
  --panel-soft: rgba(255, 255, 255, 0.05);
  --surface: #ffffff;
  --surface-soft: #f8fbff;
  --text: #e6eef8;
  --text-soft: #9fb2c8;
  --text-dark: #08111f;
  --border: rgba(148, 163, 184, 0.18);
  --accent: #38bdf8;
  --accent-strong: #0284c7;
  --accent-soft: #e0f2fe;
  --success: #22c55e;
  --shadow: 0 24px 70px rgba(2, 6, 23, 0.28);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Manrope', sans-serif;
}

body {
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(14, 165, 233, 0.12), transparent 22%),
    linear-gradient(180deg, #07111f 0%, #0b1626 48%, #08111d 100%);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 18px clamp(20px, 3vw, 48px);
  display: flex;
  justify-content: space-between;
  background: rgba(7, 17, 31, 0.82);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
  z-index: 100;
}

/* ===== NAVBAR RESPONSIVE ===== */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 6px;
}

.hamburger span {
  width: 26px;
  height: 3px;
  background: #f8fafc;
  border-radius: 5px;
  transition: 0.3s;
}
/* Hide mobile contact on desktop */
.mobile-contact {
  display: none;
}

/* Mobile Menu */
@media (max-width: 992px) {
  .navbar {
    padding: 14px 18px;
  }
  .hamburger {
    display: flex;
    margin: 0;
  }

  .nav-menu {
    position: absolute;
    top: 100%;
    left: 12px;
    right: 12px;
    width: auto;
    border-radius: 20px;
    background: rgba(7, 17, 31, 0.98);
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 24px 18px;
    display: none;
    animation: slideDown 0.4s ease;
    border: 1px solid rgba(148, 163, 184, 0.14);
    box-shadow: 0 24px 60px rgba(0,0,0,0.38);
  }

  .nav-menu.active {
    display: flex;
  }

  .navbar-contact.desktop-only {
    display: none;
  }
  
  .mobile-contact {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    font-size: 14px;
  }

  .mobile-contact a {
    color: var(--accent);
    text-decoration: none;
  }

  .hero-stats,
  .feature-showcase,
  .guide-panel-top,
  .guide-detail-grid,
  .feature-points {
    grid-template-columns: 1fr;
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}




.navbar a {
  margin-left: 20px;
  text-decoration: none;
  color: #dbe7f3;
  font-weight: 600;
  transition: color 0.25s ease;
}

.navbar-contact a:hover,
.nav-menu a:hover {
  color: #7dd3fc;
}

.logo {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.02em;
}

.logo span {
  color: #7dd3fc;
  margin-left: 5px;
}

/* LOGO IMAGE */
.logo-img {
  width: 50px;
  height: 50px;
  object-fit: contain;
  margin-right: 10px;
  border-radius: 12px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .logo {
    font-size: 1rem;
  }
  .logo-img {
    width: 40px;
    height: 40px;
  }

  .hero {
    min-height: auto;
    padding-top: 132px;
    padding-bottom: 60px;
  }

  .hero-content h1 {
    font-size: clamp(2.4rem, 12vw, 4rem);
  }

  .hero-content p {
    font-size: 1rem;
  }

  .hero-btn {
    width: 100%;
  }

  .hero-stats {
    gap: 12px;
    margin-top: 28px;
  }

  .hero-stat {
    padding: 16px;
  }

  .feature-panel,
  .tutorial-group,
  .guide-panel,
  .price-card {
    border-radius: 22px;
  }

  .feature-panel {
    padding: 22px;
  }

  .feature-panel-head {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 14px;
  }

  .feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    font-size: 22px;
  }

  .product-wrap:hover .product-box {
    transform: none;
  }

  footer {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  padding: 120px clamp(20px, 4vw, 56px) 72px;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5, 10, 18, 0.35) 0%, rgba(5, 10, 18, 0.72) 78%, rgba(7, 17, 31, 0.96) 100%),
    linear-gradient(90deg, rgba(14, 165, 233, 0.08), transparent 45%);
}

.hero video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.hero-content {
  position: relative;
  text-align: center;
  z-index: 2;
  width: min(100%, 1180px);
  margin: 0 auto;
}

.hero-kicker {
  display: inline-flex;
  margin-bottom: 18px;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid rgba(125, 211, 252, 0.24);
  background: rgba(255,255,255,0.07);
  color: #cfe9ff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-content h1 {
  font-size: clamp(3rem, 6vw, 5.4rem);
  color: #f8fbff;
  letter-spacing: -0.04em;
  font-weight: 800;
  text-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}

.hero-content p {
  margin: 18px auto 0;
  max-width: 860px;
  font-size: clamp(1.08rem, 2vw, 1.45rem);
  color: #c7d9ea;
}

.hero-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.hero-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 180px;
  padding: 16px 28px;
  border-radius: 16px;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 700;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease, border-color 0.3s ease;
}

.hero-btn:hover {
  transform: translateY(-2px);
}

.hero-btn-primary {
  background: linear-gradient(135deg, #0ea5e9, #38bdf8);
  color: #fff;
  box-shadow: 0 18px 40px rgba(14, 165, 233, 0.24);
}

.hero-btn-secondary {
  background: rgba(255,255,255,0.06);
  color: #eef7ff;
  border: 1px solid rgba(148, 163, 184, 0.22);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  max-width: 960px;
  margin: 42px auto 0;
}

.hero-stat {
  padding: 18px 20px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255,255,255,0.09), rgba(255,255,255,0.03));
  border: 1px solid rgba(148, 163, 184, 0.16);
  box-shadow: 0 16px 40px rgba(2, 6, 23, 0.18);
}

.hero-stat strong {
  display: block;
  color: #f8fbff;
  font-size: 1.1rem;
}

.hero-stat span {
  color: #a9bfd5;
  font-size: 0.96rem;
}

/* ===== SECTIONS ===== */
.section {
  padding: clamp(84px, 9vw, 120px) clamp(20px, 4vw, 56px);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.section.dark {
  background:
    linear-gradient(180deg, rgba(255,255,255,0.015), rgba(255,255,255,0.01)),
    linear-gradient(180deg, #08111f 0%, #0b1625 100%);
  color: #fff;
}

.section h2 {
  font-size: clamp(2rem, 3.4vw, 3rem);
  margin-bottom: 12px;
  color: #f8fbff;
  letter-spacing: -0.03em;
}

.section p {
  font-size: 16px;
  color: var(--text-soft);
}
.section h3 {
  font-size: 24px;
  margin-bottom: 10px;
  color: #eaf4ff;
}

.section-subtitle {
  max-width: 820px;
  margin: 10px auto 50px;
  color: #9db2c8;
  font-size: 18px;
  line-height: 1.75;
}

/* ===== FEATURES GRID ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.03));
  border-radius: 20px;
  padding: 40px;
  font-weight: 600;
  transition: all 0.3s ease;
  border: 1px solid rgba(148, 163, 184, 0.14);
  color: #e9f2fb;
  box-shadow: 0 16px 36px rgba(2, 6, 23, 0.16);
}

.card:hover {
  transform: translateY(-8px);
  border-color: rgba(56, 189, 248, 0.34);
  box-shadow: 0 24px 50px rgba(2, 6, 23, 0.24);
}

.feature-showcase {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  width: 100%;
}

.feature-panel {
  text-align: left;
  padding: 30px;
  border-radius: 26px;
  background:
    radial-gradient(circle at top right, rgba(56,189,248,0.14), transparent 28%),
    linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.04));
  border: 1px solid rgba(148, 163, 184, 0.14);
  box-shadow: var(--shadow);
}

.feature-panel-head {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  margin-bottom: 24px;
}

.feature-icon {
  width: 72px;
  height: 72px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(14,165,233,0.2), rgba(56,189,248,0.08));
  border: 1px solid rgba(125, 211, 252, 0.2);
  color: #8ed8ff;
  font-size: 28px;
}

.feature-panel-head h3 {
  margin-bottom: 8px;
}

.feature-panel-head p {
  color: #b7cbe0;
  margin: 0;
}

.feature-points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.feature-points span {
  display: block;
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(148, 163, 184, 0.1);
  color: #dce8f3;
  line-height: 1.6;
}

/* ===== PRODUCT GRID ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
  width: 100%;
  margin: 0;
}

.product-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.product-box {
  position: relative;
  width: 100%;
  height: 320px;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.14);
  background-color: #0d1725;
  transition: transform 0.5s ease, box-shadow 0.5s ease;
  transform-style: preserve-3d;
}

.product-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: inherit;
  background-size: cover;
  background-position: center;
  filter: blur(20px);
  transform: scale(1.2);
  opacity: 0.45;
}

.product-box::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: inherit;
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 2;
}

.product-wrap:hover .product-box {
  transform: perspective(1200px) rotateX(16deg) rotateY(-16deg) scale(1.05);
  box-shadow: 0 35px 80px rgba(0,0,0,0.75);
  border-color: rgba(56, 189, 248, 0.5);
}

.product-wrap span {
  margin-top: 16px;
  font-size: 15px;
  color: #d8e5f3;
  font-weight: 600;
}

/* BACKGROUND IMAGES */
.bg-signage-all { background-image: url("../img/signage_all_product.jpg"); }
.bg-32-1 { background-image: url("../img/32signage1.jpg"); }
.bg-32-2 { background-image: url("../img/32signage2.jpg"); }
.bg-32-3 { background-image: url("../img/32signage3.jpg"); }
.bg-32-4 { background-image: url("../img/32signage4.jpg"); }
.bg-43-1 { background-image: url("../img/43signage1.jpg"); }
.bg-43-2 { background-image: url("../img/43signage2.jpg"); }
.bg-43-3 { background-image: url("../img/43signage3.jpg"); }
.bg-43-4 { background-image: url("../img/43signage4.jpg"); }
.bg-55 { background-image: url("../img/55signage.jpg"); }

@media (max-width: 768px) {
  .product-box { height: 260px; }
}

/* ===== PRICING ===== */
.pricing {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  width: 100%;
  margin: 0;
  align-items: stretch;
}

.price-card {
  background: #ffffff;
  color: #0f172a;
  border-radius: 22px;
  padding: 32px 28px;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
  border: 1px solid #dbe4f0;
  box-shadow: 0 22px 55px rgba(0,0,0,0.18);
  text-align: left;
}

.price-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 30px 70px rgba(0,0,0,0.22);
  border-color: #93c5fd;
}

.price-card.highlight {
  background: #ffffff;
  color: #0f172a;
  border: 2px solid #38bdf8;
  transform: scale(1.02);
}

.price-card h3 {
  font-size: 26px;
  margin-bottom: 14px;
  color: #08111f;
}

.price-card p {
  font-size: 16px;
  font-weight: 400;
  margin-bottom: 0;
  color: #475569;
}

.price-card ul {
  list-style: none;
  padding-left: 0;
  text-align: left;
  font-size: 15px;
  color: #334155;
}

.price-card ul li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 14px;
  line-height: 1.6;
}

.price-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0ea5e9, #22c55e);
}

.plan-tag {
  display: inline-block;
  margin-bottom: 18px;
  padding: 8px 12px;
  border-radius: 999px;
  background: #eff6ff;
  color: #0369a1;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.price-card.highlight .plan-tag {
  background: #e0f2fe;
  color: #0284c7;
}

.price-value {
  margin-bottom: 14px;
  font-size: 40px;
  font-weight: 700;
  line-height: 1.1;
  color: #020617;
}

.price-value span {
  font-size: 15px;
  font-weight: 500;
  color: #64748b;
}

.price-summary {
  margin-bottom: 22px !important;
  min-height: 72px;
}

.pricing-enquiry {
  margin-top: 28px;
  font-size: 16px !important;
  color: #c7d9ea !important;
}

.pricing-enquiry a {
  color: #7dd3fc;
  font-weight: 700;
  text-decoration: none;
}

.pricing-enquiry a:hover {
  text-decoration: underline;
}

/* ===== MASTER PRODUCT GUIDE ===== */
.guide-overview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  width: 100%;
  margin: 0 0 34px;
}

.guide-overview-card {
  text-align: left;
  padding: 22px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.03));
  border: 1px solid rgba(148, 163, 184, 0.14);
  box-shadow: var(--shadow);
}

.guide-overview-card h3 {
  margin: 16px 0 10px;
}

.guide-overview-card p {
  color: #c9d8e6;
}

.master-guide {
  width: 100%;
  margin: 0;
  text-align: left;
}

.guide-tab-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.guide-tab {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 5px;
  padding: 16px 18px;
  border: 1px solid rgba(125, 211, 252, 0.18);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.03));
  color: #d9e8f6;
  cursor: pointer;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
  position: relative;
  overflow: hidden;
}

.guide-tab span {
  font-size: 18px;
  font-weight: 700;
}

.guide-tab small {
  font-size: 13px;
  color: #9db2c8;
}

.guide-tab em {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(56,189,248,0.12);
  color: #9edfff;
  font-size: 11px;
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.guide-tab em::after {
  content: "\2192";
  font-size: 12px;
}

.guide-tab:hover,
.guide-tab.active {
  transform: translateY(-2px);
  border-color: rgba(56, 189, 248, 0.34);
  background: linear-gradient(180deg, rgba(56,189,248,0.14), rgba(255,255,255,0.05));
  box-shadow: 0 18px 42px rgba(2, 6, 23, 0.2);
}

.guide-tab:hover em,
.guide-tab.active em {
  background: rgba(56,189,248,0.18);
  color: #dff5ff;
}

.guide-panels {
  position: relative;
}

.guide-panel {
  padding: 24px;
  border-radius: 24px;
  background:
    radial-gradient(circle at top right, rgba(56,189,248,0.12), transparent 24%),
    linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.04));
  border: 1px solid rgba(148, 163, 184, 0.14);
  box-shadow: var(--shadow);
}

.guide-panel-top {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
  gap: 20px;
  align-items: center;
}

.guide-panel-copy h3 {
  font-size: clamp(2rem, 3vw, 2.7rem);
  line-height: 1.15;
  margin-bottom: 14px;
}

.guide-panel-copy p {
  max-width: 680px;
  color: #c9d9e8;
  line-height: 1.8;
}

.guide-kicker {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.guide-kicker-offline {
  color: #93c5fd;
}

.guide-kicker-cloud {
  color: #c4b5fd;
}

.guide-kicker-lan {
  color: #86efac;
}

.guide-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.guide-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.guide-chip.offline {
  background: rgba(59,130,246,0.14);
  border: 1px solid rgba(96,165,250,0.28);
  color: #93c5fd;
}

.guide-chip.cloud {
  background: rgba(168,85,247,0.14);
  border: 1px solid rgba(192,132,252,0.28);
  color: #d8b4fe;
}

.guide-chip.lan {
  background: rgba(16,185,129,0.14);
  border: 1px solid rgba(52,211,153,0.28);
  color: #86efac;
}

.guide-hero-frame {
  position: relative;
  min-height: 100%;
  border-radius: 20px;
  padding: 10px;
  background: linear-gradient(180deg, rgba(255,255,255,0.10), rgba(255,255,255,0.04));
  border: 1px solid rgba(148, 163, 184, 0.14);
}

.guide-hero-frame img {
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
  border-radius: 16px;
  display: block;
}

.guide-business {
  margin-top: 18px;
  padding: 18px;
  border-radius: 18px;
  border-left: 4px solid #38bdf8;
  background: rgba(255,255,255,0.04);
}

.guide-business h4 {
  margin-bottom: 8px;
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.guide-business p {
  color: #d8e6f2;
}

.business-offline {
  border-left-color: #60a5fa;
}

.business-offline h4 {
  color: #93c5fd;
}

.business-cloud {
  border-left-color: #c084fc;
}

.business-cloud h4 {
  color: #d8b4fe;
}

.business-lan {
  border-left-color: #34d399;
}

.business-lan h4 {
  color: #86efac;
}

.guide-detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.65fr);
  gap: 18px;
  margin-top: 18px;
}

.guide-card-block {
  padding: 20px;
  border-radius: 20px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(148, 163, 184, 0.14);
}

.guide-card-block h4 {
  margin-bottom: 12px;
  color: #f8fafc;
  font-size: 22px;
}

.guide-card-block p {
  color: #bcd0e4;
  margin-bottom: 14px;
}

.guide-feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.guide-feature-list li {
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(148, 163, 184, 0.1);
  color: #dce8f3;
  line-height: 1.55;
  font-size: 14px;
}

.guide-feature-list li strong {
  color: #f8fbff;
}

.guide-feature-list.compact {
  grid-template-columns: 1fr;
}

.guide-feature-list.compact li {
  padding: 12px 14px;
}

/* ===== CONTACT FORM ===== */
.contact-form {
  max-width: 600px;
  margin: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-form .form-group { position: relative; }

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 16px 20px;
  border-radius: 16px;
  border: 1px solid rgba(148, 163, 184, 0.16);
  background: rgba(255,255,255,0.04);
  color: #fff;
  font-size: 16px;
  outline: none;
  transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: #38bdf8;
  box-shadow: 0 8px 24px rgba(56,189,248,0.18);
  background: rgba(255,255,255,0.06);
}

.contact-form textarea { resize: vertical; min-height: 140px; }

.contact-form button {
  padding: 16px 0;
  border-radius: 16px;
  border: none;
  background: linear-gradient(135deg,#38bdf8,#0ea5e9);
  color: #fff;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.contact-form button:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 10px 25px rgba(0,0,0,0.45);
}

.contact-note {
  margin-top: 25px;
  font-size: 14px;
  color: #9db2c8;
}

.contact-note a {
  color: #38bdf8;
  text-decoration: none;
  font-weight: 500;
}

.contact-note a:hover { text-decoration: underline; }

/* ===== FOOTER ===== */
footer {
  padding: 24px 20px;
  background: rgba(4, 9, 17, 0.96);
  color: #8ea4bb;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid rgba(148, 163, 184, 0.1);
}


/* ===== DOWNLOAD SECTION ===== */
.download-overview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  width: 100%;
  margin: 40px 0 30px;
}

.download-overview-card {
  text-align: left;
  background: linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.03));
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: 20px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.download-overview-card h3 {
  color: #f8fafc;
  margin: 14px 0 10px;
}

.download-overview-card p {
  color: #c8d8e8;
  line-height: 1.7;
}

.mode-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(56,189,248,0.12);
  border: 1px solid rgba(56,189,248,0.28);
  color: #7dd3fc;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mode-badge.accent {
  background: rgba(34,197,94,0.12);
  border-color: rgba(34,197,94,0.3);
  color: #86efac;
}

.mode-download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 26px;
  width: 100%;
  margin: 0;
}

.mode-download-card {
  text-align: left;
  background: linear-gradient(180deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.04) 100%);
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: 20px;
  padding: 28px;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
  box-shadow: var(--shadow);
}

.mode-download-card:hover {
  transform: translateY(-8px);
  border-color: rgba(56,189,248,0.45);
  box-shadow: 0 28px 60px rgba(0,0,0,0.35);
}

.mode-download-card.featured {
  background: linear-gradient(160deg, rgba(56,189,248,0.18), rgba(255,255,255,0.06));
  border-color: rgba(125,211,252,0.3);
}

.download-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}

.card-badge {
  margin-bottom: 16px;
}

.download-card-header img {
  width: 62px;
  height: 62px;
  object-fit: cover;
  border-radius: 16px;
  background: rgba(255,255,255,0.96);
  border: 1px solid rgba(255,255,255,0.08);
}

.download-card-title {
  display: flex;
  align-items: center;
  min-height: 62px;
}

.download-card-header h3 {
  margin: 0;
  color: #f8fafc;
  line-height: 1.25;
}

.mode-download-card p {
  color: #d4e0ec;
  line-height: 1.7;
  margin-bottom: 18px;
}

.download-points {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
}

.download-points li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 12px;
  color: #dbe7f3;
  line-height: 1.6;
}

.download-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, #38bdf8, #22c55e);
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.download-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 150px;
  padding: 12px 18px;
  background: linear-gradient(135deg,#38bdf8,#0ea5e9);
  color: #fff;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.download-actions a:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0,0,0,0.35);
}

.setup-guide {
  width: 100%;
  margin: 60px 0 0;
  text-align: left;
  background: linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.04));
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: 24px;
  padding: 34px;
  box-shadow: var(--shadow);
}

.guide-kicker {
  display: inline-block;
  margin-bottom: 10px;
  color: #38bdf8;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.guide-intro h3 {
  color: #f8fafc;
  margin-bottom: 10px;
}

.guide-intro p {
  color: #bfd1e4;
  max-width: 760px;
  line-height: 1.7;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-top: 28px;
}

.guide-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: 20px;
  padding: 26px;
}

.guide-card h4 {
  color: #e6f4ff;
  font-size: 22px;
  margin-bottom: 18px;
}

.guide-card ol {
  margin: 0;
  padding-left: 22px;
  color: #d7e5f2;
}

.guide-card li {
  margin-bottom: 12px;
  line-height: 1.7;
}

.guide-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 22px;
}

.guide-meta div {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: 16px;
  padding: 16px;
}

.guide-meta span {
  display: block;
  color: #93c5fd;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.guide-meta strong {
  color: #f8fafc;
  font-size: 18px;
}

.guide-alert {
  margin-top: 24px;
  padding: 18px 20px;
  border-radius: 16px;
  background: rgba(34,197,94,0.12);
  border: 1px solid rgba(34,197,94,0.18);
  color: #d9fbe3;
  line-height: 1.6;
}

.support-panel {
  margin-top: 24px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: 18px;
  padding: 24px;
}

.support-panel h4 {
  color: #f8fafc;
  margin-bottom: 12px;
}

.support-panel p {
  color: #c9d8e6;
  line-height: 1.7;
}

.support-panel a {
  color: #7dd3fc;
  text-decoration: none;
}

.support-panel a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .guide-overview-grid,
  .guide-tab-list,
  .feature-showcase,
  .guide-detail-grid,
  .guide-panel-top {
    grid-template-columns: 1fr;
  }

  .guide-tab {
    padding: 16px 18px;
  }

  .guide-panel,
  .guide-overview-card,
  .guide-card-block,
  .guide-business {
    padding: 22px;
  }

  .guide-panel-copy h3 {
    font-size: 1.8rem;
  }

  .guide-hero-frame img {
    min-height: 220px;
  }

  .download-overview,
  .mode-download-grid,
  .guide-grid {
    grid-template-columns: 1fr;
  }

  .download-overview-card,
  .mode-download-card,
  .guide-card,
  .support-panel,
  .setup-guide {
    padding: 22px;
  }

  .download-card-header {
    align-items: flex-start;
  }

  .download-actions a {
    width: 100%;
  }

  .guide-meta {
    grid-template-columns: 1fr;
  }

  .guide-feature-list {
    grid-template-columns: 1fr;
  }

  .pricing,
  .sector-grid,
  .tutorial-groups {
    grid-template-columns: 1fr;
  }

  .price-card.highlight {
    transform: none;
  }

  .tutorial-link {
    align-items: flex-start;
  }

  .tutorial-link::after {
    margin-left: auto;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 72px 16px;
  }

  .section h2 {
    font-size: 1.9rem;
  }

  .section-subtitle {
    margin-bottom: 34px;
    font-size: 15px;
    line-height: 1.7;
  }

  .hero {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-kicker {
    font-size: 10px;
    letter-spacing: 0.1em;
    padding: 8px 12px;
  }

  .hero-actions {
    gap: 10px;
  }

  .hero-btn {
    min-width: 0;
    padding: 14px 18px;
    font-size: 15px;
  }

  .feature-showcase {
    gap: 18px;
  }

  .feature-panel {
    padding: 18px;
    border-radius: 20px;
  }

  .feature-panel-head {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 12px;
    margin-bottom: 16px;
  }

  .feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    font-size: 18px;
  }

  .feature-panel-head h3 {
    font-size: 19px;
    line-height: 1.3;
  }

  .feature-panel-head p {
    font-size: 14px;
    line-height: 1.65;
  }

  .feature-points {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .feature-points span {
    padding: 12px 14px;
    font-size: 14px;
    line-height: 1.55;
  }

  .price-card,
  .guide-panel,
  .guide-overview-card,
  .guide-card-block,
  .guide-business,
  .download-overview-card,
  .mode-download-card,
  .guide-card,
  .support-panel,
  .setup-guide,
  .tutorial-group,
  .sector-card {
    border-radius: 18px;
  }

  .price-card,
  .download-overview-card,
  .mode-download-card,
  .guide-card,
  .support-panel,
  .setup-guide,
  .tutorial-group {
    padding: 18px;
  }

  .price-card h3,
  .guide-card-block h4,
  .guide-card h4,
  .download-card-header h3 {
    font-size: 20px;
  }

  .price-value {
    font-size: 32px;
  }

  .download-card-header {
    flex-direction: column;
    gap: 12px;
  }

  .download-card-title {
    min-height: 0;
  }

  .download-card-header img {
    width: 54px;
    height: 54px;
  }

  .guide-tab-list {
    gap: 10px;
  }

  .guide-tab {
    padding: 14px 14px;
  }

  .guide-tab span {
    font-size: 16px;
  }

  .guide-tab small {
    font-size: 12px;
  }

  .guide-panel-copy h3 {
    font-size: 1.5rem;
  }

  .guide-panel-copy p,
  .guide-business p,
  .guide-card-block p,
  .support-panel p {
    font-size: 14px;
    line-height: 1.65;
  }

  .guide-feature-list li,
  .download-points li {
    font-size: 14px;
    line-height: 1.55;
  }

  .product-grid,
  .pricing,
  .sector-grid,
  .tutorial-groups,
  .download-overview,
  .mode-download-grid,
  .guide-grid {
    gap: 18px;
  }

  .sector-card img {
    height: 160px;
  }

  .tutorial-group-head h3 {
    font-size: 20px;
  }

  .tutorial-link {
    flex-direction: column;
    align-items: flex-start;
    padding: 14px;
  }

  .tutorial-link::after {
    margin-left: 0;
  }
}

@media (max-width: 420px) {
  .navbar {
    padding: 12px 14px;
  }

  .logo {
    font-size: 0.88rem;
  }

  .logo-img {
    width: 34px;
    height: 34px;
    margin-right: 8px;
  }

  .hero {
    padding-top: 120px;
    padding-bottom: 48px;
  }

  .hero-content h1 {
    font-size: 2.15rem;
  }

  .hero-content p {
    font-size: 0.95rem;
  }

  .hero-stat strong {
    font-size: 1rem;
  }

  .hero-stat span {
    font-size: 0.88rem;
  }

  .feature-panel-head {
    grid-template-columns: 1fr;
  }

  .feature-icon {
    margin-bottom: 2px;
  }

  .price-card,
  .guide-panel,
  .mode-download-card,
  .tutorial-group,
  .guide-card,
  .setup-guide {
    padding: 16px;
  }

  .guide-kicker,
  .tutorial-label,
  .plan-tag,
  .mode-badge {
    font-size: 10px;
  }
}

/* ===== SECTORS SECTION ===== */
.sector-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  width: 100%;
  margin: 0;
}

.sector-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.03));
  border-radius: 20px;
  overflow: hidden;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  cursor: pointer;
  border: 1px solid rgba(148, 163, 184, 0.12);
  box-shadow: 0 18px 40px rgba(2, 6, 23, 0.18);
}

.sector-card img {
  width: 100%;
  display: block;
  height: 180px;
  object-fit: cover;
}

.sector-card h3 {
  padding: 18px 20px 20px;
  font-size: 18px;
  color: #eef6ff;
  text-align: center;
  margin: 0;
}

.sector-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 28px 58px rgba(2, 6, 23, 0.24);
  border-color: rgba(56, 189, 248, 0.24);
}

/* ===== TUTORIALS SECTION ===== */
.tutorial-groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
  width: 100%;
  margin: 0;
}

.tutorial-group {
  background:
    radial-gradient(circle at top right, rgba(56,189,248,0.12), transparent 30%),
    linear-gradient(180deg, rgba(18,28,42,0.96), rgba(11,18,29,0.96));
  border: 1px solid rgba(125, 211, 252, 0.16);
  border-radius: 24px;
  padding: 28px;
  text-align: left;
  overflow: hidden;
  box-shadow: 0 22px 55px rgba(2, 6, 23, 0.24);
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.tutorial-group:hover {
  transform: translateY(-8px);
  box-shadow: 0 30px 70px rgba(2, 6, 23, 0.34);
  border-color: rgba(56, 189, 248, 0.32);
}

.tutorial-group-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}

.tutorial-number {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(14,165,233,0.28), rgba(56,189,248,0.12));
  border: 1px solid rgba(125, 211, 252, 0.28);
  color: #e0f2fe;
  font-weight: 800;
  font-size: 16px;
}

.tutorial-head-copy {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.tutorial-label {
  display: inline-block;
  color: #7dd3fc;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.tutorial-group-head h3 {
  margin: 0;
  color: #f8fbff;
  font-size: 24px;
  letter-spacing: -0.02em;
}

.tutorial-links {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.tutorial-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  border-radius: 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(148, 163, 184, 0.14);
  color: #edf5ff;
  text-decoration: none;
  font-weight: 600;
  line-height: 1.5;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}

.tutorial-link::after {
  content: "Watch";
  color: #0b1220;
  background: linear-gradient(135deg, #7dd3fc, #38bdf8);
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.tutorial-link:hover {
  transform: translateX(4px);
  border-color: rgba(56, 189, 248, 0.3);
  background: rgba(56,189,248,0.10);
  box-shadow: 0 14px 30px rgba(2, 6, 23, 0.18);
}