/* ============================================================
   CSS Variables & Reset
   ============================================================ */
:root {
  --color-primary:       #10B981;
  --color-primary-dark:  #059669;
  --color-primary-light: #34D399;
  --color-primary-pale:  #ECFDF5;
  --color-primary-muted: #6EE7B7;
  --color-bg:            #FFFFFF;
  --color-bg-alt:        #F5FFFC;
  --color-bg-section:    #F0FDF7;
  --color-bg-card:      #FFFFFF;
  --color-bg-card-hover: #FAFFFE;
  --color-border:        #C3E8D8;
  --color-border-light:  #D1FAE5;
  --color-text:          #1A1A1A;
  --color-text-secondary:#2C2C2C;
  --color-text-muted:    #5A5A5A;
  --color-text-dim:      #888888;
  --font-heading:        'Noto Sans SC', sans-serif;
  --font-mono:           'Montserrat', sans-serif;
  --section-pad:         96px;
  --radius-card:         16px;
  --radius-btn:          8px;
  --transition:          0.3s ease;
  --max-width:           1200px;
  --shadow-sm:           0 2px 8px rgba(16,185,129,0.08);
  --shadow-md:           0 8px 24px rgba(16,185,129,0.12);
  --shadow-lg:           0 16px 48px rgba(16,185,129,0.16);
  --glow-primary:        0 4px 20px rgba(16,185,129,0.25);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-heading);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ============================================================
   Utility
   ============================================================ */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-label::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--color-text-secondary);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin-bottom: 56px;
}

.fade-in {
  opacity: 0;
  transition: opacity 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
}

/* ============================================================
   Navigation — Dark Green
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0;
  background: var(--color-primary-dark);
  box-shadow: 0 2px 16px rgba(27,94,32,0.3);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  height: 68px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  font-weight: 700;
  color: #FFFFFF;
  white-space: nowrap;
}
.nav__logo img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0,147,141,0.3);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav__links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: rgba(255,255,255,0.82);
  padding: 8px 16px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}
.nav__links a:hover,
.nav__links a.active {
  color: #fff;
  background: rgba(255,255,255,0.12);
}
.nav__links a.active {
  color: #fff;
  font-weight: 600;
}

.nav__cta {
  background: #fff !important;
  color: var(--color-primary-dark) !important;
  padding: 8px 22px !important;
  border-radius: var(--radius-btn) !important;
  font-weight: 700 !important;
  transition: background var(--transition), box-shadow var(--transition) !important;
}
.nav__cta:hover {
  background: #F1F8E9 !important;
  box-shadow: var(--glow-primary);
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
}
.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav__hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile overlay */
.nav__mobile {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(27,94,32,0.97);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.nav__mobile.open { display: flex; }
.nav__mobile a {
  font-size: 1.4rem;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  padding: 14px 32px;
  border-radius: 10px;
  transition: color var(--transition), background var(--transition);
}
.nav__mobile a:hover { color: #fff; background: rgba(255,255,255,0.1); }

/* ============================================================
   Hero — White bg, green accents
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 68px;
  background: linear-gradient(rgba(10,25,40,0.35), rgba(10,25,40,0.35)),
              url('https://images.unsplash.com/photo-1509391366360-2e959784a276?w=1920&q=80') center/cover no-repeat;
}

/* Decorative blobs */
.hero::before {
  content: '';
  position: absolute;
  top: -15%;
  right: -8%;
  width: 600px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(0,147,141,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 5%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(ellipse at center, rgba(0,191,180,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  padding: 60px 0;
}

.hero__content { max-width: 580px; }

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,147,141,0.18);
  border: 1px solid rgba(0,191,180,0.4);
  color: var(--color-primary-light);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
  text-transform: uppercase;
}
.hero__badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-primary-light);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.5); }
}

.hero__title {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.18;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
  color: #fff;
}
.hero__title .highlight {
  color: var(--color-primary-light);
}

.hero__subtitle {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.72);
  margin-bottom: 40px;
  line-height: 1.9;
}

.hero__buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 32px;
  border-radius: var(--radius-btn);
  border: none;
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  box-shadow: var(--glow-primary);
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 13px 32px;
  border-radius: var(--radius-btn);
  border: 2px solid var(--color-primary);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}
.btn-secondary:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
}

.hero__stats {
  display: flex;
  gap: 40px;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.12);
}
.hero__stat-num {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary-light);
  line-height: 1;
  margin-bottom: 6px;
}
.hero__stat-label {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  font-weight: 500;
}

/* Hero Visual */
.hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__battery-card {
  width: 100%;
  max-width: 460px;
  background: #fff;
  border: 1.5px solid var(--color-border);
  border-radius: 24px;
  padding: 8px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.hero__battery-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary-light), var(--color-primary));
}

.hero__battery-inner {
  background: var(--color-bg-alt);
  border-radius: 20px;
  padding: 36px 32px;
}

/* Battery bars */
.battery-visual {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 8px;
  height: 140px;
  margin-bottom: 24px;
}
.battery-pillar {
  width: 36px;
  border-radius: 8px 8px 4px 4px;
  background: linear-gradient(to top, var(--color-primary), var(--color-primary-light));
  animation: batteryLoad 2s ease-in-out infinite alternate;
}
.battery-pillar:nth-child(1) { height: 55px;  animation-delay: 0s; }
.battery-pillar:nth-child(2) { height: 78px;  animation-delay: 0.2s; }
.battery-pillar:nth-child(3) { height: 100px; animation-delay: 0.4s; }
.battery-pillar:nth-child(4) { height: 125px; animation-delay: 0.6s; }
.battery-pillar:nth-child(5) { height: 88px;  animation-delay: 0.8s; }
@keyframes batteryLoad {
  from { opacity: 0.45; }
  to   { opacity: 1; }
}

.hero__card-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 6px;
}
.hero__card-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  margin-bottom: 18px;
}

.hero__card-bar-track {
  height: 8px;
  background: var(--color-border);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 6px;
}
.hero__card-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary-light));
  border-radius: 4px;
  transition: width 1.5s ease;
}
.hero__card-bar-label {
  font-size: 0.72rem;
  color: var(--color-text-dim);
  text-align: right;
}

.hero__floating-badge {
  position: absolute;
  bottom: -14px;
  right: -14px;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(46,125,50,0.35);
  animation: floatBadge 3s ease-in-out infinite;
  white-space: nowrap;
}
@keyframes floatBadge {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ============================================================
   Products — Left menu + Right content
   ============================================================ */
.products {
  padding: var(--section-pad) 0;
  background: var(--color-bg);
}

.products__header {
  text-align: center;
}
.products__header .section-label { justify-content: center; }
.products__header .section-label::before { display: none; }
.products__header .section-subtitle { margin: 0 auto 48px; }

.products__layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  align-items: start;
}

/* Left sidebar menu */
.products__menu {
  background: var(--color-bg-alt);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  position: sticky;
  top: 88px;
}

.products__menu-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-left var(--transition);
  border-left: 3px solid transparent;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
}
.products__menu-item:last-child { border-bottom: none; }
.products__menu-item:hover {
  background: var(--color-primary-pale);
  color: var(--color-primary);
  border-left-color: var(--color-primary-muted);
}
.products__menu-item.active {
  background: var(--color-primary-pale);
  color: var(--color-primary);
  border-left-color: var(--color-primary);
  font-weight: 700;
}

.products__menu-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
  width: 28px;
  text-align: center;
}
.products__menu-text {
  flex: 1;
}
.products__menu-arrow {
  font-size: 0.7rem;
  opacity: 0;
  transition: opacity var(--transition), transform var(--transition);
}
.products__menu-item.active .products__menu-arrow,
.products__menu-item:hover .products__menu-arrow {
  opacity: 1;
  transform: translateX(2px);
}

/* Right panels */
.products__content {
  min-height: 400px;
}

.products__content-panel {
  display: none;
  animation: fadeSlide 0.4s ease;
}
.products__content-panel.active { display: block; }

@keyframes fadeSlide {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Panel header */
.products__content-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1.5px solid var(--color-border);
}
.products__content-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-secondary);
}
.products__content-badge {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-pale);
  border: 1px solid var(--color-border-light);
  padding: 5px 14px;
  border-radius: 100px;
}

/* Cards grid */
.products__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.products__card {
  background: var(--color-bg-card);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.products__card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary-muted);
  box-shadow: var(--shadow-md);
}

.products__card-img {
  height: 180px;
  background: var(--color-bg-alt);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
  position: relative;
}
.products__card-img .img-svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.products__card-img .img-label {
  font-size: 0.75rem;
  color: var(--color-text-dim);
  font-weight: 500;
  position: relative;
  z-index: 1;
  background: var(--color-bg-alt);
  padding: 2px 8px;
  border-radius: 4px;
}

.products__card-body {
  padding: 20px;
}
.products__card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}
.products__card-desc {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 14px;
}
.products__card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.products__card-tag {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-pale);
  border: 1px solid var(--color-border-light);
  padding: 3px 10px;
  border-radius: 100px;
}

/* Content description block */
.products__content-desc {
  margin-top: 36px;
  background: var(--color-bg-alt);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px;
}
.products__content-desc-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  margin-bottom: 14px;
}
.products__content-desc p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.9;
  margin-bottom: 12px;
}
.products__content-desc p:last-child { margin-bottom: 0; }

/* Specs table */
.products__specs {
  margin-top: 20px;
}
.products__spec-row {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.85rem;
}
.products__spec-row:last-child { border-bottom: none; }
.products__spec-key {
  width: 140px;
  flex-shrink: 0;
  font-weight: 600;
  color: var(--color-text-secondary);
  padding: 12px 0;
  background: var(--color-bg-alt);
}
.products__spec-val {
  flex: 1;
  color: var(--color-text-muted);
  padding: 12px 16px;
}

.products__panel-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 28px;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.88rem;
  padding: 11px 26px;
  border-radius: var(--radius-btn);
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}
.products__panel-cta:hover {
  background: var(--color-primary-dark);
  box-shadow: var(--glow-primary);
  transform: translateY(-2px);
}

/* ============================================================
   About — Light green bg
   ============================================================ */
.about {
  padding: var(--section-pad) 0;
  background: var(--color-bg-section);
}

.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__text p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.9;
  margin-bottom: 18px;
}

.about__features {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 32px;
}
.about__feature {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.about__feature-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.about__feature-text h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 2px;
  color: var(--color-text-secondary);
}
.about__feature-text p {
  font-size: 0.82rem;
  color: var(--color-text-dim);
  margin: 0;
}

.about__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.stat-card {
  background: #fff;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px 24px;
  text-align: center;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary-muted);
  box-shadow: var(--shadow-md);
}
.stat-card__icon {
  font-size: 2rem;
  margin-bottom: 14px;
}
.stat-card__num {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-card__label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ============================================================
   Applications — White bg
   ============================================================ */
.applications {
  padding: var(--section-pad) 0;
  background: linear-gradient(rgba(10,25,40,0.88), rgba(10,25,40,0.88)),
              url('https://images.unsplash.com/photo-1548337138-e87d889cc369?w=1920&q=80') center/cover no-repeat;
  position: relative;
}

.applications__header {
  text-align: center;
}
.applications__header .section-label { justify-content: center; color: var(--color-primary-light, #5de8e3); }
.applications__header .section-label::before { display: none; }
.applications__header .section-title { color: #fff; }
.applications__header .section-subtitle { color: rgba(255,255,255,0.72); margin: 0 auto 56px; }

/* Hover-expand grid: flex row of 4 equal cards */
.apps-grid {
  display: flex;
  flex-direction: row;
  gap: 20px;
  align-items: stretch;
}

.app-card {
  flex: 1;
  border-radius: var(--radius-card);
  border: 1.5px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(8px);
  transition: flex 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease, background 0.3s ease;
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

/* Hovered expands slightly, siblings shrink */
.apps-grid:has(.app-card:hover) .app-card {
  flex: 0 0 160px;
}
.apps-grid:has(.app-card:hover) .app-card:hover {
  flex: 1.6 1 0;
}

.app-card:hover {
  border-color: rgba(0,191,180,0.5);
  background: rgba(255,255,255,0.14);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.app-card__img-wrap {
  overflow: hidden;
  border-radius: var(--radius-card);
  position: relative;
}

.app-card__img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.app-card:hover .app-card__img {
  transform: scale(1.04);
}

.app-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: 28px 20px;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0) 60%);
}

.app-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  text-shadow: 0 2px 8px rgba(0,0,0,0.4);
  letter-spacing: 0.04em;
}

/* ============================================================
   Contact — Light green bg
   ============================================================ */
.contact {
  padding: var(--section-pad) 0;
  background: var(--color-bg-section);
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact__info-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 28px;
  color: var(--color-text-secondary);
}

.contact__info-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.contact__info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.contact__info-icon {
  width: 46px;
  height: 46px;
  background: var(--color-primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact__info-label {
  font-size: 0.75rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
  font-weight: 600;
}
.contact__info-value {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  font-weight: 500;
  line-height: 1.6;
}

.contact__form {
  background: #fff;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}
.contact__form-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 28px;
  color: var(--color-text-secondary);
}

.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-text-muted);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}
.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--color-bg-alt);
  border: 1.5px solid var(--color-border);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-dim);
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(46,125,50,0.1);
}
.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.btn-submit {
  width: 100%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px;
  border: none;
  border-radius: var(--radius-btn);
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  margin-top: 6px;
  font-family: var(--font-heading);
}
.btn-submit:hover {
  background: var(--color-primary-dark);
  box-shadow: var(--glow-primary);
  transform: translateY(-2px);
}

.form-success {
  display: none;
  text-align: center;
  padding: 32px;
}
.form-success.show { display: block; }
.form-success__icon { font-size: 3rem; margin-bottom: 16px; }
.form-success__title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-primary);
}
.form-success__text {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  padding: 36px 0;
  background: var(--color-primary-dark);
  text-align: center;
}
.footer__logo {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: #fff;
}
.footer__url {
  font-size: 0.78rem;
  color: var(--color-primary-muted);
  margin-bottom: 10px;
}
.footer__text {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  :root { --section-pad: 72px; }
  .hero__inner { grid-template-columns: 1fr; gap: 48px; }
  .hero__visual { display: none; }
  .about__inner { grid-template-columns: 1fr; gap: 48px; }
  .about__stats { grid-template-columns: repeat(4, 1fr); }
  .apps-grid { grid-template-columns: repeat(3, 1fr); }
  .apps-grid:has(.app-card:hover) .app-card { flex: none; }
  .apps-grid:has(.app-card:hover) .app-card:hover { flex: none; }
  .contact__inner { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 768px) {
  :root { --section-pad: 60px; }
  .nav__links, .nav__cta { display: none; }
  .nav__hamburger { display: flex; }
  .products__grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .about__stats { grid-template-columns: 1fr 1fr; }
  .apps-grid { grid-template-columns: repeat(2, 1fr); }
  .apps-grid:has(.app-card:hover) .app-card { flex: none; }
  .apps-grid:has(.app-card:hover) .app-card:hover { flex: none; }
  .contact__form { padding: 28px; }
  .form-row { grid-template-columns: 1fr; }
  .hero__stats { gap: 24px; }
  .hero__buttons { flex-direction: column; }
  .hero__buttons .btn-primary,
  .hero__buttons .btn-secondary { width: 100%; justify-content: center; }
}

@media (max-width: 480px) {
  .apps-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .about__stats { grid-template-columns: 1fr 1fr; gap: 12px; }
}