:root {
  --green: #22C55E;
  --green-dark: #16A34A;
  --ink: #102018;
  --muted: #66746b;
  --line: rgba(22, 163, 74, .16);
  --surface: rgba(255, 255, 255, .78);
  --shadow: 0 24px 70px rgba(15, 23, 42, .09);
  --radius: 22px;
}

* { box-sizing: border-box; }
body {
  background:
    radial-gradient(circle at 8% 4%, rgba(34, 197, 94, .13), transparent 30rem),
    radial-gradient(circle at 93% 12%, rgba(22, 163, 74, .10), transparent 28rem),
    #fff;
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, Segoe UI, sans-serif;
  line-height: 1.65;
}

body.dark {
  --ink: #eef8f1;
  --muted: #b7c5bc;
  --surface: rgba(17, 28, 22, .76);
  --line: rgba(74, 222, 128, .18);
  background:
    radial-gradient(circle at 12% 5%, rgba(34, 197, 94, .18), transparent 28rem),
    #08120d;
}

a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, h5, h6, .navbar-brand { font-family: Poppins, Inter, sans-serif; }
.muted, p { color: var(--muted); }
.container { max-width: 1180px; }

.glass-nav {
  background: rgba(255, 255, 255, .82);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}
body.dark .glass-nav { background: rgba(8, 18, 13, .84); }
.navbar { padding: .9rem 0; }
.brand-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  color: #fff;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  box-shadow: 0 12px 28px rgba(34, 197, 94, .28);
}
.brand-copy { display: grid; line-height: 1.05; }
.brand-copy small { color: var(--muted); font: 700 .75rem Inter, sans-serif; letter-spacing: .08em; text-transform: uppercase; }
.nav-link { color: var(--ink); font-weight: 700; }
.nav-link:hover { color: var(--green-dark); }
.icon-btn {
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  color: var(--ink);
}
.btn-gradient {
  border: 0;
  color: #fff;
  font-weight: 800;
  border-radius: 999px;
  padding: .78rem 1.3rem;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  box-shadow: 0 14px 30px rgba(34, 197, 94, .25);
}
.btn-gradient:hover { color: #fff; transform: translateY(-1px); }
.btn-soft {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(34, 197, 94, .08);
  color: var(--green-dark);
  font-weight: 800;
}

.hero-section { padding: 6rem 0 3rem; overflow: hidden; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  color: var(--green-dark);
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: .78rem;
}
.hero-section h1 {
  max-width: 10ch;
  margin: 1rem 0;
  font-size: clamp(3rem, 7vw, 5.9rem);
  line-height: .98;
  letter-spacing: -.02em;
}
.hero-section h1 span {
  color: transparent;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  -webkit-background-clip: text;
  background-clip: text;
}
.hero-copy { max-width: 38rem; font-size: 1.15rem; }

.hero-visual {
  position: relative;
  min-height: 470px;
  display: grid;
  place-items: center;
  perspective: 900px;
}
.battery-3d {
  position: relative;
  width: min(78vw, 270px);
  height: 390px;
  border-radius: 36px;
  border: 12px solid rgba(16, 32, 24, .88);
  overflow: hidden;
  transform: rotateY(-14deg) rotateX(7deg);
  background: linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.35));
  box-shadow: 36px 38px 80px rgba(17, 24, 39, .22);
}
body.dark .battery-3d { border-color: rgba(238, 248, 241, .86); background: rgba(255,255,255,.08); }
.battery-cap {
  position: absolute;
  top: -36px;
  left: 50%;
  width: 98px;
  height: 36px;
  border-radius: 20px 20px 0 0;
  transform: translateX(-50%);
  background: #102018;
}
.charge-wave {
  position: absolute;
  inset: auto 0 0;
  height: 78%;
  background: linear-gradient(180deg, #4ade80, var(--green-dark));
  animation: chargePulse 3.2s ease-in-out infinite;
}
.battery-3d i {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 5.4rem;
  filter: drop-shadow(0 8px 18px rgba(0,0,0,.2));
}
.particle {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 30px var(--green);
  animation: float 5s ease-in-out infinite;
}
.p1 { left: 9%; top: 22%; }
.p2 { right: 8%; top: 18%; animation-delay: .8s; }
.p3 { right: 18%; bottom: 18%; animation-delay: 1.5s; }
.health-card {
  position: absolute;
  right: 1rem;
  bottom: 2rem;
  width: min(280px, 82vw);
}
.progress { height: 10px; border-radius: 999px; background: rgba(34, 197, 94, .13); }
.progress-bar { background: linear-gradient(135deg, var(--green), var(--green-dark)); border-radius: inherit; }

.glass-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}
.quick-benefits { margin-top: 1rem; }
.benefit-card, .tip-card, .sidebar-widget, .newsletter-widget, .article-body, .team-card, .recent-box, .contact-form, .faq-card, .admin-stat { padding: 1.35rem; }
.benefit-card i, .tip-card > i, .category-card i, .admin-stat i {
  display: inline-grid;
  place-items: center;
  width: 50px;
  height: 50px;
  margin-bottom: 1rem;
  border-radius: 16px;
  color: #fff;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
}
.benefit-card h3, .tip-card h3 { font-size: 1.05rem; }

.main-layout, .page-wrap { padding-top: 4rem; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.section-head h2, .page-hero h1 { font-size: clamp(2rem, 4vw, 3.25rem); }
.category-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}
.category-card {
  min-height: 150px;
  padding: 1.2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform .2s ease, border-color .2s ease;
}
.category-card:hover, .tip-card:hover, .blog-card:hover { transform: translateY(-5px); border-color: rgba(34, 197, 94, .38); }
.tip-card { position: relative; height: 100%; transition: transform .2s ease; }
.tip-card a { color: var(--green-dark); font-weight: 800; }
.bookmark {
  position: absolute;
  top: 1rem;
  right: 1rem;
  border: 0;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: rgba(34, 197, 94, .1);
  color: var(--green-dark);
}
.bookmark.saved i::before { content: "\f199"; }
.mini-label { display: block; color: var(--green-dark); font-size: .75rem; font-weight: 800; text-transform: uppercase; }

.article-list { display: grid; gap: 1rem; }
.article-card {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 1rem;
  padding: .85rem;
  align-items: center;
}
.article-card img, .blog-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 16px;
  background: rgba(34, 197, 94, .08);
}
.article-card h3 { font-size: 1.25rem; margin-top: .55rem; }
.blog-card { overflow: hidden; transition: transform .2s ease; }
.blog-card h2 { font-size: 1.4rem; margin-top: .8rem; }

.stats-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 3rem;
  padding: 2rem;
  border-radius: 24px;
  color: #fff;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
}
.stats-band div { display: grid; text-align: center; }
.stats-band strong { font-size: 2.4rem; font-family: Poppins, Inter, sans-serif; }

.sidebar-stack { position: sticky; top: 98px; display: grid; gap: 1rem; }
.sidebar-widget h3, .newsletter-widget h3 { font-size: 1.15rem; margin-bottom: 1rem; }
.search-box { position: relative; display: flex; align-items: center; }
.search-box i { position: absolute; left: 1rem; color: var(--green-dark); z-index: 1; }
.search-box .form-control { padding-left: 2.7rem; border-radius: 16px; border-color: var(--line); min-height: 52px; background: rgba(255,255,255,.72); }
body.dark .form-control, body.dark .form-select { background: rgba(255,255,255,.08); color: var(--ink); border-color: var(--line); }
.popular-list { padding-left: 1.3rem; margin-bottom: 0; }
.popular-list li { margin: .55rem 0; font-weight: 700; }
.category-row { display: flex; justify-content: space-between; padding: .7rem 0; border-bottom: 1px solid var(--line); }
.category-row:last-child { border-bottom: 0; }
.newsletter-widget {
  border-radius: var(--radius);
  color: #fff;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  box-shadow: var(--shadow);
}
.newsletter-widget p { color: rgba(255,255,255,.84); }

.page-hero {
  padding: clamp(2rem, 5vw, 4rem);
  overflow: hidden;
}
.filter-bar { display: flex; gap: 1rem; margin-top: 1.5rem; }
.filter-bar .form-select, .tag-input { max-width: 260px; border-radius: 16px; min-height: 52px; }
.category-banner {
  color: #fff;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  border-radius: 24px;
  padding: 3rem;
}
.category-banner p, .category-banner .eyebrow { color: rgba(255,255,255,.86); }
.category-banner > i { font-size: 3rem; }
.detail-hero {
  position: relative;
  min-height: 430px;
  overflow: hidden;
  border-radius: 28px;
  background: #0f2017;
}
.detail-hero img { width: 100%; height: 430px; object-fit: cover; opacity: .72; }
.detail-overlay {
  position: absolute;
  inset: auto 0 0;
  padding: clamp(1.5rem, 5vw, 3rem);
  color: #fff;
  background: linear-gradient(transparent, rgba(0,0,0,.72));
}
.detail-overlay h1 { max-width: 760px; font-size: clamp(2.2rem, 5vw, 4.2rem); }
.article-body { font-size: 1.04rem; }
.article-body h2 { margin-top: 1.8rem; }
.share-row { display: flex; gap: .8rem; flex-wrap: wrap; margin-top: 2rem; }
.contact-form { display: grid; gap: 1rem; }
.faq-card details { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.faq-card summary { cursor: pointer; font-weight: 800; }
.team-avatar-row { display: flex; gap: .8rem; }
.team-avatar-row span {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  font-weight: 900;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
}
.admin-stat { display: grid; }
.admin-stat strong { font-size: 2rem; }
.admin-login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.25rem;
}
.admin-login-card {
  width: min(100%, 430px);
  display: grid;
  gap: 1rem;
  padding: clamp(1.5rem, 5vw, 2.4rem);
  text-align: center;
}
.admin-login-card h1 {
  margin: 0;
  font-size: clamp(2rem, 6vw, 3rem);
}
.admin-login-card .form-control {
  min-height: 54px;
  border-radius: 16px;
  border-color: var(--line);
  text-align: center;
}
.admin-live-alert {
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: 1rem 1.2rem;
  color: var(--green-dark);
  font-weight: 800;
}
.admin-live-alert i, .live-stat i { animation: float 2.5s ease-in-out infinite; }
.admin-form, .admin-table {
  padding: 1.35rem;
  height: 100%;
}
.admin-form h2, .admin-table h2 { font-size: 1.35rem; }
.admin-form {
  display: grid;
  gap: .85rem;
}
.admin-form .form-control {
  min-height: 50px;
  border-radius: 14px;
  border-color: var(--line);
}
.form-response {
  min-height: 1.4rem;
  color: var(--green-dark);
  font-weight: 800;
}
.admin-table .table {
  --bs-table-bg: transparent;
  --bs-table-color: var(--ink);
  margin-bottom: 0;
}
.admin-table th {
  color: var(--muted);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.live-visitor-list {
  display: grid;
  gap: .75rem;
}
.live-visitor-list div {
  display: grid;
  gap: .15rem;
  padding: .85rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(34, 197, 94, .06);
}
.live-visitor-list span {
  overflow-wrap: anywhere;
  color: var(--muted);
}
.live-visitor-list small { color: var(--green-dark); font-weight: 800; }
.admin-modules { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.admin-modules a { border: 1px solid var(--line); padding: 1.4rem; text-align: left; font-weight: 800; color: var(--ink); }
.admin-modules a:hover { transform: translateY(-3px); border-color: rgba(34, 197, 94, .38); }
.admin-modules i { margin-right: .7rem; color: var(--green-dark); }
.admin-module-panels {
  display: grid;
  gap: 1rem;
}
.admin-panel {
  padding: 1.35rem;
  scroll-margin-top: 110px;
}
.admin-panel h2 { font-size: 1.35rem; margin-bottom: 1rem; }
.admin-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}
.inline-admin-form {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(34, 197, 94, .05);
}
.inline-admin-form textarea,
.inline-admin-form .form-check,
.inline-admin-form button,
.inline-admin-form .form-response {
  grid-column: 1 / -1;
}
.admin-panel .table code {
  color: var(--green-dark);
}
.admin-record-modal .modal-content {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--surface);
  color: var(--ink);
}
.admin-record-modal .modal-header {
  border-bottom: 1px solid var(--line);
  padding: 1.15rem 1.35rem;
}
.admin-record-modal .modal-title {
  font-size: 1.25rem;
}
.admin-record-modal .modal-body {
  padding: 1.35rem;
}
.admin-record-modal .inline-admin-form {
  margin-top: 0;
  padding: 0;
  border: 0;
  background: transparent;
}
body.dark .btn-close { filter: invert(1) grayscale(100%); }

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(248, 252, 249, .8);
}
body.dark .site-footer { background: rgba(255,255,255,.03); }
.site-footer a { display: block; color: var(--muted); margin: .45rem 0; }
.site-footer a:hover { color: var(--green-dark); }
.footer-bottom { border-top: 1px solid var(--line); color: var(--muted); }
.footer-bottom span:last-child { display: flex; gap: 1rem; }

@keyframes chargePulse {
  0%, 100% { height: 70%; filter: hue-rotate(0deg); }
  50% { height: 84%; filter: hue-rotate(8deg); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); opacity: .55; }
  50% { transform: translateY(-22px); opacity: 1; }
}

@media (max-width: 991px) {
  .hero-section { padding-top: 4rem; }
  .category-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sidebar-stack { position: static; }
  .stats-band { grid-template-columns: repeat(2, 1fr); }
  .admin-modules { grid-template-columns: repeat(2, 1fr); }
  .inline-admin-form { grid-template-columns: 1fr; }
}

@media (max-width: 575px) {
  .navbar .btn-gradient { width: 100%; }
  .hero-visual { min-height: 390px; }
  .battery-3d { height: 310px; }
  .health-card { left: 50%; right: auto; transform: translateX(-50%); bottom: 0; }
  .category-grid, .stats-band, .admin-modules { grid-template-columns: 1fr; }
  .article-card { grid-template-columns: 1fr; }
  .filter-bar { flex-direction: column; }
  .filter-bar .form-select, .tag-input { max-width: none; }
  .page-hero, .category-banner { padding: 1.5rem; }
}