/* ============================================================
   OZOPLED — Homepage Stylesheet
   DARK theme · FOREST GREEN accent #166534
   Supporting tones: #15803D · #86EFAC · #0B1F14
   Background: deep green-black #0C1012 · text: #EAF2EE
   ============================================================ */

:root {
  --bg: #0C1012;
  --bg-panel: #0B1F14;
  --bg-surface: #101815;
  --bg-elevated: #14221c;
  --text: #EAF2EE;
  --muted: #9FB8AC;
  --faint: #6E857B;
  --accent: #166534;
  --accent-strong: #15803D;
  --accent-soft: #86EFAC;
  --line: #22332b;
  --line-soft: #1a2822;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
}

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

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

body {
  font-size: 16px;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--accent-soft);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   LIGHTBULB-FILAMENT NAVIGATION
   ============================================================ */

.site-head {
  position: sticky;
  top: 0;
  z-index: 100;
}

.filament-nav {
  background-color: #0C1012;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 14px 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.06em;
}

.brand:hover {
  text-decoration: none;
}

.wordmark {
  font-size: 1.05rem;
  letter-spacing: 0.14em;
}

/* CSS-drawn lightbulb */
.brand-bulb {
  position: relative;
  width: 30px;
  height: 38px;
  display: inline-block;
  flex: none;
}

.brand-bulb .glass {
  position: absolute;
  top: 0;
  left: 4px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--accent-soft);
  background: radial-gradient(circle at 50% 35%, rgba(134, 239, 172, 0.5), rgba(22, 101, 52, 0.16) 72%);
  box-shadow: 0 0 14px rgba(134, 239, 172, 0.45), inset 0 0 9px rgba(134, 239, 172, 0.35);
}

.brand-bulb .filament {
  position: absolute;
  top: 9px;
  left: 13px;
  width: 6px;
  height: 8px;
  border: 1.5px solid var(--accent-soft);
  border-top: none;
  border-radius: 0 0 6px 6px;
}

.brand-bulb .base {
  position: absolute;
  top: 21px;
  left: 8px;
  width: 14px;
  height: 13px;
  background: repeating-linear-gradient(180deg, var(--accent-soft) 0 2px, var(--accent-strong) 2px 4px);
  border-radius: 0 0 4px 4px;
  clip-path: polygon(22% 0, 78% 0, 100% 100%, 0 100%);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  margin-left: auto;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--text);
  text-decoration: none;
}

.nav-cta {
  display: inline-block;
  background-color: var(--accent);
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 600;
  padding: 11px 20px;
  border-radius: 6px;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.nav-cta:hover {
  background-color: var(--accent-strong);
  text-decoration: none;
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   SOLAR-PANEL HERO
   ============================================================ */

.solar-hero {
  position: relative;
  padding: 96px 0 88px;
  background:
    radial-gradient(1200px 600px at 78% 12%, rgba(22, 101, 52, 0.28), transparent 60%),
    linear-gradient(180deg, #0c1210 0%, var(--bg) 100%);
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.hero-eyebrow {
  display: inline-block;
  color: var(--accent-soft);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.hero-copy h1 {
  font-size: clamp(2.1rem, 4.4vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
  font-weight: 800;
}

.hero-sub {
  color: var(--muted);
  font-size: 1.12rem;
  max-width: 560px;
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn {
  display: inline-block;
  padding: 14px 26px;
  border-radius: 7px;
  font-size: 1rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
}

.btn-primary {
  background-color: var(--accent);
  color: var(--text);
}

.btn-primary:hover {
  background-color: var(--accent-strong);
}

.btn-ghost {
  background-color: transparent;
  color: var(--accent-soft);
  border-color: var(--accent-strong);
}

.btn-ghost:hover {
  background: rgba(22, 101, 52, 0.18);
}

/* Solar panel array visual */
.hero-visual {
  position: relative;
  min-height: 380px;
}

.solar-array {
  position: absolute;
  inset: 0;
}

.sun {
  position: absolute;
  top: 4px;
  right: 90px;
  width: 64px;
  height: 64px;
  z-index: 2;
}

.sun-core {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 42%, #f4f9f4 0%, #cdeed8 55%, rgba(134, 239, 172, 0.6) 100%);
  box-shadow: 0 0 34px rgba(134, 239, 172, 0.55);
}

.ray {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 4px;
  height: 14px;
  background: linear-gradient(180deg, var(--accent-soft), transparent);
  border-radius: 2px;
  transform-origin: 50% 0;
}

.ray-1 { transform: translate(-50%, -100%) rotate(0deg) translateY(-30px); }
.ray-2 { transform: translate(-50%, -100%) rotate(60deg) translateY(-30px); }
.ray-3 { transform: translate(-50%, -100%) rotate(120deg) translateY(-30px); }
.ray-4 { transform: translate(-50%, -100%) rotate(180deg) translateY(-30px); }
.ray-5 { transform: translate(-50%, -100%) rotate(240deg) translateY(-30px); }
.ray-6 { transform: translate(-50%, -100%) rotate(300deg) translateY(-30px); }

.panel {
  position: absolute;
  width: 200px;
  height: 128px;
  border-radius: 8px;
  border: 1px solid rgba(134, 239, 172, 0.35);
  background:
    linear-gradient(rgba(148, 163, 184, 0.28) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.28) 1px, transparent 1px),
    linear-gradient(140deg, #1f2c3a, #0d1620);
  background-size: 40px 40px, 40px 40px, 100% 100%;
  box-shadow: var(--shadow);
}

.panel::after {
  content: "";
  position: absolute;
  bottom: -34px;
  left: 50%;
  width: 5px;
  height: 34px;
  background: #33424f;
  transform: rotate(16deg);
  transform-origin: top center;
}

.panel-1 {
  top: 120px;
  right: 40px;
  transform: rotate(-9deg);
}

.panel-2 {
  top: 168px;
  right: 150px;
  transform: rotate(7deg) scale(0.9);
}

.panel-3 {
  top: 92px;
  right: 160px;
  transform: rotate(-14deg) scale(0.78);
}

.ground {
  position: absolute;
  bottom: 22px;
  left: 30px;
  right: 20px;
  height: 26px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(22, 101, 52, 0.4), transparent);
}

/* ============================================================
   FULL-WIDTH STATEMENT ROW
   ============================================================ */

.statement-row {
  padding: 96px 0;
  text-align: center;
  background-color: var(--bg);
}

.statement-mark {
  color: var(--accent-soft);
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.statement-row h2 {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  line-height: 1.3;
  max-width: 880px;
  margin: 0 auto 22px;
  font-weight: 700;
}

.statement-row p {
  color: var(--muted);
  max-width: 720px;
  margin: 0 auto;
  font-size: 1.06rem;
}

/* ============================================================
   TABBED CAPABILITY PANELS
   ============================================================ */

.capability-section {
  padding: 96px 0;
  background-color: var(--bg-panel);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.section-head {
  max-width: 720px;
  margin-bottom: 46px;
}

.kicker {
  color: var(--accent-soft);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  line-height: 1.2;
  margin-bottom: 14px;
  font-weight: 700;
}

.section-lede {
  color: var(--muted);
  font-size: 1.05rem;
}

.tabs {
  display: inline-flex;
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background-color: var(--bg-surface);
  margin-bottom: 28px;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 0.98rem;
  font-weight: 600;
  padding: 11px 22px;
  border-radius: 7px;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.tab-btn:hover {
  color: var(--text);
}

.tab-btn.is-active {
  background-color: var(--accent);
  color: var(--text);
}

.tab-panel {
  display: none;
}

.tab-panel.is-active {
  display: block;
}

.panel-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 30px;
  align-items: stretch;
}

.panel-desc {
  background-color: var(--bg-surface);
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  padding: 32px;
}

.panel-desc h3 {
  font-size: 1.4rem;
  margin-bottom: 14px;
}

.panel-desc p {
  color: var(--muted);
  margin-bottom: 20px;
}

.panel-list {
  list-style: none;
  display: grid;
  gap: 10px;
}

.panel-list li {
  position: relative;
  padding-left: 26px;
  color: var(--text);
}

.panel-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--accent-strong);
  box-shadow: 0 0 0 3px rgba(21, 128, 61, 0.25);
}

.panel-note {
  display: flex;
  flex-direction: column;
  gap: 16px;
  justify-content: center;
  background: linear-gradient(160deg, var(--accent), #0e3d20);
  border-radius: 12px;
  padding: 30px;
}

.note-num {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent-soft);
  line-height: 1;
}

.panel-note p {
  color: var(--text);
  font-size: 1.05rem;
}

/* ============================================================
   BIG-NUMERAL STAT COLUMNS
   ============================================================ */

.stats-section {
  padding: 88px 0;
  background-color: var(--bg);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.stat {
  text-align: center;
  padding: 30px 16px;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background-color: var(--bg-surface);
}

.stat-num {
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--accent-soft);
  line-height: 1;
}

.stat-suffix {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent-strong);
  margin-left: 4px;
}

.stat-label {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.95rem;
}

/* ============================================================
   NUMBERED DELIVERY PROCESS LIST
   ============================================================ */

.process-section {
  padding: 96px 0;
  background-color: var(--bg-panel);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.process-list {
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: 0;
  max-width: 860px;
}

.process-step {
  position: relative;
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 26px;
  padding-bottom: 40px;
}

.process-step:last-child {
  padding-bottom: 0;
}

.process-step::before {
  content: "";
  position: absolute;
  left: 44px;
  top: 62px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-strong), var(--line));
}

.process-step:last-child::before {
  display: none;
}

.step-num {
  position: relative;
  z-index: 1;
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background-color: var(--bg-surface);
  border: 2px solid var(--accent-strong);
  color: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
}

.step-body h3 {
  font-size: 1.35rem;
  margin-bottom: 10px;
}

.step-body p {
  color: var(--muted);
  max-width: 620px;
}

/* ============================================================
   TWO-COLUMN COMPARISON TABLE
   ============================================================ */

.compare-section {
  padding: 96px 0;
  background-color: var(--bg);
}

.compare-table {
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}

.compare-head {
  display: grid;
  grid-template-columns: 0.8fr 1.1fr 1.1fr;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--line);
}

.compare-row {
  display: grid;
  grid-template-columns: 0.8fr 1.1fr 1.1fr;
  border-bottom: 1px solid var(--line-soft);
}

.compare-row:last-child {
  border-bottom: none;
}

.compare-head .compare-col {
  font-weight: 700;
  padding: 18px 20px;
  color: var(--text);
}

.compare-head .compare-highlight {
  background-color: var(--accent);
  color: var(--text);
}

.compare-label {
  padding: 16px 20px;
  color: var(--muted);
  font-weight: 600;
  background-color: var(--bg-surface);
}

.compare-cell {
  padding: 16px 20px;
  color: var(--text);
}

.compare-row .compare-cell:last-child {
  background: rgba(22, 101, 52, 0.14);
  color: var(--text);
  font-weight: 500;
}

/* ============================================================
   SPLIT CTA BAND
   ============================================================ */

.cta-band {
  padding: 72px 0;
  background: linear-gradient(120deg, #0e2b1b 0%, var(--accent) 100%);
}

.cta-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 30px;
  align-items: center;
}

.cta-copy h2 {
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
  margin-bottom: 12px;
  font-weight: 700;
}

.cta-copy p {
  color: #EAF2EE;
  max-width: 520px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: flex-end;
}

.cta-band .btn-primary {
  background-color: #0c1012;
  color: var(--text);
}

.cta-band .btn-primary:hover {
  background-color: #16221d;
}

.cta-band .btn-ghost {
  border: 1px solid rgba(234, 242, 238, 0.7);
  color: var(--text);
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */

.contact-section {
  padding: 96px 0 88px;
  background-color: var(--bg);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 44px;
  align-items: start;
}

.contact-info {
  display: grid;
  gap: 24px;
}

.info-block h3 {
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-soft);
  margin-bottom: 8px;
}

.info-block a,
.info-block p {
  color: var(--text);
  font-size: 1.02rem;
}

.info-block a {
  color: var(--accent-soft);
}

.contact-form {
  display: grid;
  gap: 12px;
  background-color: var(--bg-surface);
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  padding: 32px;
}

.contact-form label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
  margin-top: 6px;
}

.contact-form input,
.contact-form textarea {
  background-color: var(--bg);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 13px 15px;
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent-strong);
}

.contact-form .btn {
  margin-top: 10px;
  justify-self: start;
}

.form-note {
  color: var(--faint);
  font-size: 0.85rem;
}

/* ============================================================
   FOOTER — compact multi-column, thin forest-green top rule
   ============================================================ */

.site-footer {
  background-color: #090d0e;
  border-top: 1px solid var(--line-soft);
}

.footer-rule {
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-strong), var(--accent-soft));
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 34px;
  padding-top: 52px;
  padding-bottom: 44px;
}

.footer-brand p {
  color: var(--muted);
  font-size: 0.95rem;
  margin-top: 16px;
  max-width: 280px;
}

.footer-col h3 {
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-soft);
  margin-bottom: 16px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-col a:hover {
  color: var(--text);
}

.footer-col p {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid var(--line-soft);
  padding: 20px 0;
}

.footer-bottom p {
  color: var(--faint);
  font-size: 0.85rem;
  text-align: center;
}

/* ============================================================
   SCROLL-REVEAL (safe without JS via noscript fallback)
   ============================================================ */

.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: none;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-visual {
    min-height: 300px;
  }
  .panel-grid {
    grid-template-columns: 1fr;
  }
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background-color: #0c1012;
    border-bottom: 1px solid var(--line);
    padding: 0 24px;
    display: none;
  }
  .nav-links.open {
    display: flex;
  }
  .nav-links a {
    width: 100%;
    padding: 15px 0;
    border-bottom: 1px solid var(--line-soft);
  }
  .nav-links a:last-child {
    border-bottom: none;
  }
  .nav-cta {
    margin-left: auto;
  }
  .nav-toggle {
    display: flex;
  }
  .compare-head,
  .compare-row {
    grid-template-columns: 1fr;
  }
  .compare-head .compare-col {
    padding: 12px 16px;
  }
  .compare-label {
    border-top: 1px solid var(--line-soft);
  }
  .process-step {
    grid-template-columns: 64px 1fr;
    gap: 18px;
  }
  .process-step::before {
    left: 31px;
    top: 52px;
  }
  .step-num {
    width: 64px;
    height: 64px;
    font-size: 1.15rem;
  }
  .cta-grid {
    grid-template-columns: 1fr;
  }
  .cta-actions {
    justify-content: flex-start;
  }
}