/*  =====================================================
    TEVANETWORK — "Four Elements" Design System v2
    Earth #2E7D32 · Water #1565C0 · Air #FBC02D · Fire #C62828
    ===================================================== */

/* ---------- VARIABLES ---------- */
:root {
  --bg: #060B14;
  --bg-alt: #0C1220;
  --bg-card: rgba(255, 255, 255, 0.025);
  --border: rgba(255, 255, 255, 0.07);
  --text: #E2E8F0;
  --text-dim: #94A3B8;
  --white: #FFFFFF;

  --earth: #2E7D32;
  --earth-l: #66BB6A;
  --water: #1565C0;
  --water-l: #42A5F5;
  --air: #FBC02D;
  --air-l: #FFF176;
  --fire: #C62828;
  --fire-l: #EF5350;

  --radius: 16px;
  --radius-sm: 8px;
  --radius-pill: 100px;
  --transition: 0.35s cubic-bezier(.4, 0, .2, 1);
  --font: 'Inter', system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  font-size: 16px;
}

body {
  overflow-x: hidden;
}

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

ul,
ol {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

h1,
h2,
h3,
h4 {
  color: var(--white);
  font-weight: 700;
  line-height: 1.15;
}

button {
  font-family: inherit;
}

/* ---------- LAYOUT ---------- */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.section {
  padding: 120px 0;
}

.section-alt {
  background: var(--bg-alt);
}

.section-label {
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-dim);
  font-size: 1.125rem;
  max-width: 640px;
  margin-bottom: 56px;
}

.accent-muted {
  color: var(--text-dim);
  font-style: italic;
  font-weight: 300;
}

/* ---------- BADGES ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  font-size: .8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.2px;
}

.badge-water {
  background: rgba(21, 101, 192, .1);
  color: var(--water-l);
  border: 1px solid rgba(21, 101, 192, .25);
}

.badge-earth {
  background: rgba(46, 125, 50, .1);
  color: var(--earth-l);
  border: 1px solid rgba(46, 125, 50, .25);
}

.badge-air {
  background: rgba(251, 192, 45, .1);
  color: var(--air);
  border: 1px solid rgba(251, 192, 45, .25);
}

.badge-fire {
  background: rgba(198, 40, 40, .1);
  color: var(--fire-l);
  border: 1px solid rgba(198, 40, 40, .25);
}

/* ---------- GLASSMORPHISM ---------- */
.glass {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .95rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  justify-content: center;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

.btn-fire {
  background: linear-gradient(135deg, var(--fire-l), var(--fire));
  color: #fff;
  box-shadow: 0 4px 20px rgba(198, 40, 40, .35);
}

.btn-fire:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(198, 40, 40, .5);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, .05);
  border-color: var(--water-l);
}

/* ---------- TEXT COLORS ---------- */
.text-earth {
  color: var(--earth-l);
}

.text-water {
  color: var(--water-l);
}

.text-air {
  color: var(--air-l);
}

.text-fire {
  color: var(--fire-l);
}

/* ---------- REVEAL ---------- */
.reveal {
  opacity: 0;
  transform: translateY(35px);
  transition: opacity .7s ease-out, transform .7s ease-out;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 {
  transition-delay: .12s;
}

.delay-2 {
  transition-delay: .24s;
}

.delay-3 {
  transition-delay: .36s;
}

/* ========================================================
   NAVBAR
======================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background: rgba(6, 11, 20, .65);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(6, 11, 20, .92);
  border-bottom-color: var(--border);
  box-shadow: 0 2px 40px rgba(0, 0, 0, .4);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  width: 92%;
  max-width: 1320px;
  margin: 0 auto;
}

.logo-img {
  height: 36px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-dim);
  transition: color .25s;
}

.nav-links a:hover {
  color: var(--white);
}

.nav-cta {
  font-size: .85rem;
  padding: 10px 20px;
}

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

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

@media(max-width:900px) {

  .nav-links,
  .nav-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-alt);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
  }
}

/* ========================================================
   HERO
======================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: 120px 20px 80px;
}

/* AI-generated nature+tech hero background */
.hero-bg-img {
  position: absolute;
  inset: -20px;
  background: url('images/hero-bg.png') center center / cover no-repeat;
  opacity: 0.18;
  z-index: 0;
  animation: heroZoom 30s ease-in-out infinite alternate;
  filter: saturate(1.3);
}

@keyframes heroZoom {
  0% {
    transform: scale(1) translate(0, 0);
  }

  100% {
    transform: scale(1.08) translate(-1%, 1%);
  }
}

#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 40%, rgba(21, 101, 192, .12) 0%, transparent 60%), linear-gradient(to bottom, transparent 60%, var(--bg) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  background: rgba(251, 192, 45, .08);
  border: 1px solid rgba(251, 192, 45, .2);
  color: var(--air);
  font-size: .82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 24px;
  line-height: 1.1;
}

.gradient-text {
  background: linear-gradient(90deg, var(--air-l), var(--water-l));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-dim);
  max-width: 660px;
  margin: 0 auto 40px;
}

.hero-sub em {
  color: var(--white);
  font-style: normal;
  font-weight: 600;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-trust {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
  font-size: .82rem;
  color: var(--text-dim);
}

.hero-trust span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-trust i {
  color: var(--earth-l);
  font-size: .9rem;
}

/* Scroll hint */
.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--water-l), transparent);
  animation: scrollPulse 2s infinite;
}

@keyframes scrollPulse {

  0%,
  100% {
    opacity: .3;
    transform: scaleY(.6);
  }

  50% {
    opacity: 1;
    transform: scaleY(1);
  }
}

/* ========================================================
   LANDSCAPE
======================================================== */
.landscape-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.lcard {
  padding: 40px 32px;
  transition: var(--transition);
}

.lcard:hover {
  border-color: rgba(255, 255, 255, .12);
  transform: translateY(-4px);
}

.lcard-stat {
  font-size: 4rem;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 16px;
}

.lcard-icon {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.lcard h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.lcard p {
  color: var(--text-dim);
  font-size: .95rem;
}

/* ========================================================
   SERVICES
======================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.scard {
  padding: 36px 28px;
  transition: var(--transition);
  border-top: 3px solid transparent;
  position: relative;
  overflow: hidden;
}

.scard::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  opacity: 0;
  transition: opacity .4s;
}

.scard:hover {
  transform: translateY(-6px);
}

.scard-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.scard-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.earth-glow {
  background: rgba(46, 125, 50, .12);
  color: var(--earth-l);
  box-shadow: 0 0 20px rgba(46, 125, 50, .15);
}

.water-glow {
  background: rgba(21, 101, 192, .12);
  color: var(--water-l);
  box-shadow: 0 0 20px rgba(21, 101, 192, .15);
}

.air-glow {
  background: rgba(251, 192, 45, .1);
  color: var(--air);
  box-shadow: 0 0 20px rgba(251, 192, 45, .12);
}

.fire-glow {
  background: rgba(198, 40, 40, .1);
  color: var(--fire-l);
  box-shadow: 0 0 20px rgba(198, 40, 40, .15);
}

.element-tag {
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-dim);
  font-weight: 600;
}

.scard h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.scard p {
  color: var(--text-dim);
  font-size: .92rem;
}

.element-earth:hover {
  border-color: var(--earth-l);
  box-shadow: 0 8px 40px rgba(46, 125, 50, .12);
}

.element-water:hover {
  border-color: var(--water-l);
  box-shadow: 0 8px 40px rgba(21, 101, 192, .12);
}

.element-air:hover {
  border-color: var(--air);
  box-shadow: 0 8px 40px rgba(251, 192, 45, .1);
}

.element-fire:hover {
  border-color: var(--fire-l);
  box-shadow: 0 8px 40px rgba(198, 40, 40, .12);
}

/* ========================================================
   INDUSTRIES — TABS
======================================================== */
.tabs-nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.tab-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.tab-btn:hover {
  background: rgba(255, 255, 255, .06);
}

.tab-btn.active {
  background: var(--water);
  border-color: var(--water-l);
  color: #fff;
  box-shadow: 0 0 24px rgba(21, 101, 192, .3);
}

.tabs-body {
  padding: 48px;
  min-height: 280px;
}

.tab-panel {
  display: none;
  animation: fadeUp .45s ease;
}

.tab-panel.active {
  display: flex;
  gap: 40px;
  align-items: flex-start;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tab-icon {
  font-size: 3rem;
  color: var(--water-l);
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  background: rgba(21, 101, 192, .08);
}

.tab-text h3 {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.tab-text p {
  color: var(--text-dim);
  margin-bottom: 20px;
  font-size: 1.02rem;
}

.tab-features {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tab-features li {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  font-size: .82rem;
  color: var(--text);
}

.tab-features i {
  color: var(--earth-l);
  font-size: .75rem;
}

@media(max-width:640px) {
  .tab-panel.active {
    flex-direction: column;
  }

  .tabs-body {
    padding: 28px;
  }
}

/* ========================================================
   ROI
======================================================== */
.roi-formula {
  padding: 48px;
  text-align: center;
  margin-bottom: 48px;
  border-left: 3px solid var(--fire);
}

.roi-formula h3 {
  margin-bottom: 28px;
  font-size: 1.2rem;
}

.formula {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  font-family: 'Courier New', monospace;
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  color: var(--text-dim);
}

.f-label {
  font-weight: 800;
  color: var(--air-l);
}

.f-eq {
  color: var(--text-dim);
}

.f-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.f-bracket {
  color: var(--text-dim);
  font-size: 1.5em;
}

.f-pos {
  color: var(--earth-l);
  font-weight: 600;
}

.f-neg {
  color: var(--fire-l);
  font-weight: 600;
}

.f-op {
  color: var(--text-dim);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.metric {
  padding: 40px;
  text-align: center;
  transition: var(--transition);
}

.metric:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, .12);
}

.metric-val {
  font-size: 3.8rem;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 8px;
}

.metric-val span {
  font-size: 2.5rem;
}

.metric-label {
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-dim);
  font-weight: 600;
  margin-bottom: 12px;
}

.metric p {
  color: var(--text-dim);
  font-size: .9rem;
}

/* ========================================================
   COMPLIANCE
======================================================== */
.compliance-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: center;
}

.compliance-text .section-title {
  margin-top: 16px;
}

.compliance-text>p {
  color: var(--text-dim);
  margin: 20px 0 28px;
  font-size: 1.02rem;
}

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

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--text-dim);
  font-size: .95rem;
}

.checklist i {
  margin-top: 4px;
  font-size: 1rem;
}

.checklist strong {
  color: var(--white);
}

.compliance-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.shield-box {
  width: 100%;
  aspect-ratio: 1;
  max-width: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  border-color: rgba(46, 125, 50, .2);
}

.icon-lock {
  font-size: 4.5rem;
  color: var(--earth-l);
  position: relative;
  z-index: 5;
  filter: drop-shadow(0 0 20px rgba(46, 125, 50, .3));
}

.pulse-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(46, 125, 50, .2);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.r1 {
  width: 55%;
  height: 55%;
  animation: ringPulse 3.5s infinite ease-out;
}

.r2 {
  width: 72%;
  height: 72%;
  animation: ringPulse 3.5s infinite ease-out .7s;
}

.r3 {
  width: 90%;
  height: 90%;
  animation: ringPulse 3.5s infinite ease-out 1.4s;
}

@keyframes ringPulse {
  0% {
    transform: translate(-50%, -50%) scale(.85);
    opacity: .8;
  }

  100% {
    transform: translate(-50%, -50%) scale(1.35);
    opacity: 0;
  }
}

@media(max-width:768px) {
  .compliance-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .shield-box {
    max-width: 240px;
    margin: 0 auto;
  }
}

/* ========================================================
   FOOTER / LEAD FORM
======================================================== */
.footer {
  padding: 100px 0 40px;
}

.footer-top {
  text-align: center;
  margin-bottom: 48px;
}

.footer-top .section-desc {
  margin: 12px auto 0;
}

.lead-form {
  max-width: 580px;
  margin: 0 auto 80px;
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-row {
  display: flex;
  gap: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.form-group label {
  font-size: .82rem;
  color: var(--text-dim);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .8px;
}

.form-group input,
.form-group textarea {
  background: rgba(0, 0, 0, .25);
  border: 1px solid var(--border);
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  color: #fff;
  font-family: inherit;
  font-size: .95rem;
  transition: border-color .3s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--fire-l);
  box-shadow: 0 0 0 3px rgba(198, 40, 40, .12);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255, 255, 255, .2);
}

.form-success {
  max-width: 580px;
  margin: 0 auto 80px;
  padding: 60px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.form-success i {
  font-size: 3rem;
}

.form-success h3 {
  font-size: 1.5rem;
}

.form-success p {
  color: var(--text-dim);
}

/* Honeypot field — invisible to humans */
.hp-field {
  position: absolute;
  left: -9999px;
  top: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
  overflow: hidden;
  pointer-events: none;
}

/* Form error message */
.form-error {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  margin-bottom: 16px;
  border-radius: var(--radius);
  background: rgba(198, 40, 40, .12);
  border: 1px solid rgba(198, 40, 40, .3);
  color: #ef5350;
  font-size: .9rem;
  animation: shakeError .4s ease-in-out;
}

@keyframes shakeError {

  0%,
  100% {
    transform: translateX(0);
  }

  20% {
    transform: translateX(-8px);
  }

  40% {
    transform: translateX(8px);
  }

  60% {
    transform: translateX(-4px);
  }

  80% {
    transform: translateX(4px);
  }
}

.form-error i {
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* Submit button loading state */
.btn-loading {
  pointer-events: none;
  opacity: .7;
}

.btn-loading .fa-paper-plane {
  display: none;
}

.btn-loading .btn-spinner {
  display: inline-block !important;
}

/* Turnstile widget */
.turnstile-wrapper {
  display: flex;
  justify-content: center;
  margin: 16px 0;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.footer-logo-img {
  height: 28px;
  width: auto;
  opacity: .7;
  transition: opacity .3s;
}

.footer-logo-img:hover {
  opacity: 1;
}

.footer-links {
  display: flex;
  gap: 24px;
  font-size: .85rem;
  color: var(--text-dim);
}

.footer-links a:hover {
  color: var(--white);
  text-decoration: underline;
}

.footer-socials {
  display: flex;
  gap: 16px;
}

.footer-socials a {
  font-size: 1.15rem;
  color: var(--text-dim);
  transition: color .25s;
}

.footer-socials a:hover {
  color: var(--white);
}

.copyright {
  text-align: center;
  color: var(--text-dim);
  font-size: .8rem;
  margin-top: 32px;
  opacity: .6;
}

@media(max-width:600px) {
  .form-row {
    flex-direction: column;
    gap: 18px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ========================================================
   NAV CONTROLS (Lang Toggle + Theme Toggle)
======================================================== */
.nav-controls {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Language Toggle */
.lang-toggle {
  display: flex;
  border-radius: var(--radius-pill);
  overflow: hidden;
  border: 1px solid var(--border);
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  padding: 6px 14px;
  font-size: .78rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: .5px;
}

.lang-btn.active {
  background: var(--water);
  color: #fff;
}

.lang-btn:not(.active):hover {
  background: rgba(255, 255, 255, .06);
}

/* Theme Toggle */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: var(--transition);
  position: relative;
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, .06);
  color: var(--air);
}

/* In dark mode (default): show sun, hide moon */
#icon-moon {
  display: none;
}

#icon-sun {
  display: inline;
}

@media(max-width:900px) {
  .nav-controls .nav-cta {
    display: none;
  }
}

/* ========================================================
   LIGHT THEME
======================================================== */
[data-theme="light"] {
  --bg: #F5F7FA;
  --bg-alt: #EBEEF3;
  --bg-card: rgba(0, 0, 0, 0.025);
  --border: rgba(0, 0, 0, 0.09);
  --text: #334155;
  --text-dim: #64748B;
  --white: #0F172A;

  /* Element colors stay vivid */
  --earth: #2E7D32;
  --earth-l: #2E7D32;
  --water: #1565C0;
  --water-l: #1565C0;
  --air: #D4A017;
  --air-l: #C6930A;
  --fire: #C62828;
  --fire-l: #C62828;
}

/* In light mode: show moon, hide sun */
[data-theme="light"] #icon-sun {
  display: none;
}

[data-theme="light"] #icon-moon {
  display: inline;
}

/* Navbar adjustments for light */
[data-theme="light"] .navbar {
  background: rgba(245, 247, 250, .75);
}

[data-theme="light"] .navbar.scrolled {
  background: rgba(245, 247, 250, .95);
  box-shadow: 0 2px 20px rgba(0, 0, 0, .08);
}

/* Hero canvas should dim in light mode */
[data-theme="light"] #hero-canvas {
  opacity: 0.25;
}

[data-theme="light"] .hero-overlay {
  background: radial-gradient(ellipse at 50% 40%, rgba(21, 101, 192, .06) 0%, transparent 60%), linear-gradient(to bottom, transparent 60%, var(--bg) 100%);
}

/* Logo is fine in both modes — no inversion needed */

/* Glass cards in light */
[data-theme="light"] .glass {
  background: rgba(255, 255, 255, .6);
  border-color: rgba(0, 0, 0, .08);
  box-shadow: 0 2px 16px rgba(0, 0, 0, .04);
}

/* Form inputs */
[data-theme="light"] .form-group input,
[data-theme="light"] .form-group textarea {
  background: rgba(255, 255, 255, .8);
  color: #1E293B;
  border-color: rgba(0, 0, 0, .12);
}

[data-theme="light"] .form-group input::placeholder,
[data-theme="light"] .form-group textarea::placeholder {
  color: rgba(0, 0, 0, .3);
}

/* Tab btn in light */
[data-theme="light"] .tab-btn {
  background: rgba(255, 255, 255, .5);
}

[data-theme="light"] .tab-btn.active {
  background: var(--water);
  color: #fff;
}

/* gradient text stays the same */
[data-theme="light"] .gradient-text {
  background: linear-gradient(90deg, var(--air), var(--water));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* hero badge */
[data-theme="light"] .hero-badge {
  background: rgba(251, 192, 45, .12);
  border-color: rgba(200, 150, 30, .25);
}

/* ========================================================
   LEGAL PAGES
======================================================== */
.legal-page {
  padding: 120px 20px 80px;
  min-height: 100vh;
}

.legal-page h1 {
  font-size: 2.4rem;
  margin-bottom: 8px;
}

.legal-page .legal-date {
  color: var(--text-dim);
  font-size: .9rem;
  margin-bottom: 40px;
}

.legal-page h2 {
  font-size: 1.4rem;
  margin-top: 40px;
  margin-bottom: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.legal-page h2:first-of-type {
  border-top: none;
  padding-top: 0;
}

.legal-page p,
.legal-page li {
  color: var(--text-dim);
  font-size: .95rem;
  margin-bottom: 12px;
  line-height: 1.7;
}

.legal-page ul {
  padding-left: 20px;
  list-style: disc;
  margin-bottom: 16px;
}

.legal-page a {
  color: var(--water-l);
  text-decoration: underline;
}

.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 32px;
  color: var(--text-dim);
  font-size: .9rem;
  transition: color .25s;
}

.legal-back:hover {
  color: var(--white);
  text-decoration: none;
}

/* ========================================================
   NATURE + TECH ELEMENTS SHOWCASE
======================================================== */
.elements-showcase {
  padding: 80px 0;
  overflow: hidden;
}

.elements-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.element-visual {
  position: relative;
  text-align: center;
}

.element-anim {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius);
  transition: transform .5s ease, box-shadow .5s ease;
  box-shadow: 0 8px 40px rgba(0, 0, 0, .4);
}

/* Floating animation */
@keyframes gentleFloat {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-14px);
  }
}

.anim-float {
  animation: gentleFloat 5s ease-in-out infinite;
}

.delay-a2 {
  animation-delay: 1.2s;
}

.delay-a3 {
  animation-delay: 2.4s;
}

.delay-a4 {
  animation-delay: 3.6s;
}

/* Hover glow per element */
.element-visual:nth-child(1) .element-anim:hover {
  box-shadow: 0 0 50px rgba(46, 125, 50, .5), 0 12px 40px rgba(0, 0, 0, .5);
  transform: translateY(-8px) scale(1.03);
}

.element-visual:nth-child(2) .element-anim:hover {
  box-shadow: 0 0 50px rgba(21, 101, 192, .5), 0 12px 40px rgba(0, 0, 0, .5);
  transform: translateY(-8px) scale(1.03);
}

.element-visual:nth-child(3) .element-anim:hover {
  box-shadow: 0 0 50px rgba(251, 192, 45, .4), 0 12px 40px rgba(0, 0, 0, .5);
  transform: translateY(-8px) scale(1.03);
}

.element-visual:nth-child(4) .element-anim:hover {
  box-shadow: 0 0 50px rgba(198, 40, 40, .5), 0 12px 40px rgba(0, 0, 0, .5);
  transform: translateY(-8px) scale(1.03);
}

/* Labels under images */
.ev-label {
  display: block;
  margin-top: 14px;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.ev-earth {
  color: var(--earth-l);
}

.ev-water {
  color: var(--water-l);
}

.ev-air {
  color: var(--air);
}

.ev-fire {
  color: var(--fire-l);
}

@media(max-width:768px) {
  .elements-strip {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media(max-width:480px) {
  .elements-strip {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* ========================================================
   SERVICE CARD IMAGES
======================================================== */
.scard-img-wrap {
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 20px;
  position: relative;
}

.scard-img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  transition: transform .6s ease, filter .6s ease;
  filter: brightness(.7) saturate(.8);
}

.scard:hover .scard-img {
  transform: scale(1.08);
  filter: brightness(1) saturate(1.2);
}

.element-earth .scard-img-wrap {
  box-shadow: 0 4px 20px rgba(46, 125, 50, .15);
}

.element-water .scard-img-wrap {
  box-shadow: 0 4px 20px rgba(21, 101, 192, .15);
}

.element-air .scard-img-wrap {
  box-shadow: 0 4px 20px rgba(251, 192, 45, .1);
}

.element-fire .scard-img-wrap {
  box-shadow: 0 4px 20px rgba(198, 40, 40, .15);
}

/* Light‐theme adjustments for new images */
[data-theme="light"] .hero-bg-img {
  opacity: 0.1;
  filter: saturate(1) brightness(1.2);
}

[data-theme="light"] .element-anim {
  box-shadow: 0 8px 30px rgba(0, 0, 0, .15);
}

[data-theme="light"] .scard-img {
  filter: brightness(.85) saturate(.9);
}

[data-theme="light"] .scard:hover .scard-img {
  filter: brightness(1) saturate(1.1);
}