/* ── RESET & BASE ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  background: #fafafa;
  color: #333;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ── VARIABLES ── */
:root {
  --green: #6dd400;
  --green-glow: rgba(109,212,0,0.35);
  --green-soft: rgba(109,212,0,0.08);
  --dark: #0d1117;
  --mid: #555;
  --light: #888;
  --border: #e0e0e0;
  --bg-white: #ffffff;
  --bg-light: #fafafa;
}

/* ── LAYOUT ── */
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── LABEL ── */
.label {
  font-family: 'Space Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--green);
  display: block;
  margin-bottom: 12px;
  font-weight: 700;
}

/* ── SECTION TITLE ── */
.section-title {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1;
  color: #1a1a1a;
  margin-bottom: 24px;
}

/* ── BUTTONS ── */
.btn {
  display: inline-block;
  padding: 12px 32px;
  font-family: 'Space Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  transition: all 0.25s ease;
  border-radius: 2px;
  cursor: pointer;
  font-weight: 700;
}
.btn-solid { background: var(--green); color: #0d1117; border: none; }
.btn-solid:hover {
  background: #88ff00;
  color: var(--dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--green-glow);
}
.btn-outline { background: transparent; color: var(--green); border: 1px solid var(--green); }
.btn-outline:hover { background: var(--green-soft); transform: translateY(-2px); }

/* ── SCROLL REVEAL ── */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }
.reveal-d4 { transition-delay: 0.4s; }
.reveal-d5 { transition-delay: 0.5s; }

/* ════════════════════════════════════════
   NAV
════════════════════════════════════════ */
#denergi-nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 9999;
  transition: all 0.4s ease;
  border-bottom: 1px solid transparent;
}
#denergi-nav.scrolled {
  background: rgba(250,250,250,0.95);
  backdrop-filter: blur(10px);
  border-color: var(--border);
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.nav-logo { font-family: 'DM Serif Display', serif; font-size: 1.5rem; color: #333; letter-spacing: 0.15em; }
.nav-logo span { color: var(--green); }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  font-family: 'Space Mono', monospace; font-size: 0.65rem; letter-spacing: 2px;
  text-transform: uppercase; color: var(--light); transition: color 0.2s;
}
.nav-links a:hover { color: var(--green); }
.lang-switcher {
  display: flex; align-items: center; gap: 4px;
  margin-left: 16px; padding-left: 16px; border-left: 1px solid var(--border);
}
.lang-btn {
  font-family: 'Space Mono', monospace; font-size: 0.65rem; letter-spacing: 2px;
  text-transform: uppercase; padding: 4px 8px; border: none; background: transparent;
  color: var(--light); cursor: pointer; border-radius: 3px; transition: all 0.2s;
}
.lang-btn.active, .lang-btn:hover { background: var(--green); color: #fff; }
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; background: none; border: none; cursor: pointer; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--green); transition: all 0.3s; }
.mobile-menu {
  display: none; background: var(--bg-light); border-top: 1px solid var(--border);
  padding: 16px 24px 24px; flex-direction: column; gap: 16px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-family: 'Space Mono', monospace; font-size: 0.7rem; letter-spacing: 2px;
  text-transform: uppercase; color: var(--light); padding: 4px 0; transition: color 0.2s;
}
.mobile-menu a:hover { color: var(--green); }
@media (max-width: 768px) { .nav-links { display: none; } .hamburger { display: flex; } }

/* ════════════════════════════════════════
   HERO
════════════════════════════════════════ */
#denergi-hero {
  position: relative; min-height: 100vh; display: flex;
  align-items: center; justify-content: center; overflow: hidden;
  background: linear-gradient(160deg, #fafafa 0%, #f5f5f5 100%);
}
.hero-bg {
  position: absolute; inset: 0;
  background-image: url('https://d2xsxph8kpxj0f.cloudfront.net/310519663535716594/myZVAPhonqpeYpMN83RxYa/denergi-hero-bg-6tuSaMTKwmaRD7PXnc9Ssd.webp');
  background-size: cover; background-position: center; opacity: 0.25;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(109,212,0,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(109,212,0,.05) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridShift 20s linear infinite; pointer-events: none;
}
@keyframes gridShift { 0% { background-position: 0 0; } 100% { background-position: 60px 60px; } }
.hero-glow {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 50%, rgba(109,212,0,.09) 0%, transparent 70%);
  pointer-events: none;
}
.hero-corner { position: absolute; width: 64px; height: 64px; border-color: rgba(109,212,0,0.3); border-style: solid; }
.hero-corner-tl { top: 96px; left: 32px; border-width: 2px 0 0 2px; }
.hero-corner-tr { top: 96px; right: 32px; border-width: 2px 2px 0 0; }
.hero-corner-bl { bottom: 64px; left: 32px; border-width: 0 0 2px 2px; }
.hero-corner-br { bottom: 64px; right: 32px; border-width: 0 2px 2px 0; }
@media (max-width: 768px) { .hero-corner { display: none; } }
.hero-content { position: relative; z-index: 10; text-align: center; max-width: 900px; padding: 0 24px; }
.hero-badge { display: inline-block; margin-bottom: 32px; }
.hero-badge-inner { padding: 12px 32px; background: var(--green); border-radius: 999px; }
.hero-badge-inner span {
  font-family: 'Space Mono', monospace; font-size: 0.7rem;
  letter-spacing: 3px; text-transform: uppercase; color: #fff; font-weight: 700;
}
.hero-title { font-family: 'DM Serif Display', serif; font-size: clamp(4.5rem, 14vw, 10rem); line-height: 1; color: #333; margin-bottom: 24px; }
.hero-title span { color: var(--green); }
.hero-sub { color: var(--mid); font-size: 1.1rem; max-width: 520px; margin: 0 auto 40px; line-height: 1.7; font-weight: 300; }
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-scroll {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px; opacity: 0.6;
}
.hero-scroll span { font-family: 'Space Mono', monospace; font-size: 0.55rem; letter-spacing: 3px; text-transform: uppercase; color: var(--light); }
.hero-scroll-line { width: 1px; height: 48px; background: linear-gradient(to bottom, var(--green), transparent); }

/* ════════════════════════════════════════
   ABOUT
════════════════════════════════════════ */
#denergi-about { padding: 96px 0; background: var(--bg-light); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 96px; align-items: center; }
@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; gap: 48px; } }
.about-text p { color: var(--mid); line-height: 1.9; margin-bottom: 16px; }
.about-text strong { color: var(--green); font-weight: 500; }
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--bg-white); border: 1px solid var(--border); border-radius: 4px;
  padding: 24px; transition: all 0.3s; cursor: default;
}
.stat-card:hover { border-color: var(--green); transform: translateY(-4px); }
.stat-num { font-family: 'DM Serif Display', serif; font-size: 2.8rem; color: var(--green); line-height: 1; margin-bottom: 4px; }
.stat-label { font-family: 'Space Mono', monospace; font-size: 0.62rem; letter-spacing: 2px; text-transform: uppercase; color: var(--light); }
.about-img { border-radius: 4px; overflow: hidden; border: 1px solid var(--border); }
.about-img img { width: 100%; height: 220px; object-fit: cover; object-position: top; }

/* ════════════════════════════════════════
   SERVICES
════════════════════════════════════════ */
#denergi-services { padding: 96px 0; background: var(--bg-white); }
.services-header { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 40px; gap: 24px; flex-wrap: wrap; }
.services-header .section-title { margin-bottom: 0; }
.services-subtext { color: var(--mid); max-width: 340px; font-size: 0.9rem; line-height: 1.7; }
.services-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 640px) { .services-grid { grid-template-columns: 1fr; } }
.service-card {
  position: relative; background: var(--bg-white); border: 1px solid var(--border);
  border-radius: 4px; padding: 32px; transition: all 0.3s; overflow: hidden;
}
.service-card:hover { border-color: var(--green); transform: translateY(-4px); }
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--green); transform: scaleX(0); transform-origin: left; transition: transform 0.4s ease;
}
.service-card:hover::before { transform: scaleX(1); }
.service-icon { width: 44px; height: 44px; background: var(--green-soft); border-radius: 4px; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; margin-bottom: 20px; }
.service-title { font-family: 'DM Serif Display', serif; font-size: 1.6rem; color: #333; letter-spacing: 0.04em; margin-bottom: 16px; }
.service-list { list-style: none; }
.service-list li { display: flex; align-items: flex-start; gap: 8px; padding: 8px 0; color: var(--mid); font-size: 0.88rem; border-bottom: 1px solid rgba(0,0,0,0.05); }
.service-list li:last-child { border-bottom: none; }
.service-list li::before { content: '✓'; color: var(--green); font-size: 0.7rem; margin-top: 2px; flex-shrink: 0; }

/* ════════════════════════════════════════
   KNOWLEDGE
════════════════════════════════════════ */
#denergi-knowledge { padding: 96px 0; background: var(--bg-light); }
.knowledge-intro { display: grid; grid-template-columns: 2fr 3fr; gap: 40px; align-items: start; margin-bottom: 8px; }
@media (max-width: 900px) { .knowledge-intro { grid-template-columns: 1fr; } }
.knowledge-text p { color: var(--mid); line-height: 1.9; }
.green-em { color: var(--green); font-style: normal; }
.knowledge-img { margin-top: 24px; border-radius: 4px; overflow: hidden; border: 1px solid var(--border); }
.knowledge-img img { width: 100%; height: 160px; object-fit: cover; }
.ticker-wrap { overflow: hidden; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 12px 0; margin: 32px 0; background: var(--bg-white); }
.ticker-track { display: flex; gap: 48px; white-space: nowrap; width: max-content; animation: ticker 30s linear infinite; }
@keyframes ticker { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
.ticker-item { font-family: 'Space Mono', monospace; font-size: 0.62rem; letter-spacing: 3px; text-transform: uppercase; color: var(--green); opacity: 0.7; }
.topics-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
@media (max-width: 900px) { .topics-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .topics-grid { grid-template-columns: 1fr; } }
.topic-card { display: flex; align-items: flex-start; gap: 12px; background: var(--bg-white); border: 1px solid var(--border); border-radius: 3px; padding: 16px; transition: all 0.25s; cursor: default; }
.topic-card:hover { background: var(--bg-light); border-color: var(--green); transform: translateX(4px); }
.topic-icon { font-size: 1.3rem; flex-shrink: 0; margin-top: 2px; }
.topic-name { font-size: 0.87rem; font-weight: 500; color: #333; }
.topic-desc { font-family: 'Space Mono', monospace; font-size: 0.62rem; color: var(--light); margin-top: 2px; }

/* ════════════════════════════════════════
   PROCESS
════════════════════════════════════════ */
#denergi-process { padding: 96px 0; background: var(--bg-white); }
.process-steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; margin-top: 48px; position: relative; }
.process-steps::before {
  content: ''; position: absolute; top: 24px; left: 10%; right: 10%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
}
@media (max-width: 768px) { .process-steps { grid-template-columns: 1fr; } .process-steps::before { display: none; } }
.process-step { text-align: center; padding: 0 12px; }
@media (max-width: 768px) {
  .process-step { display: flex; gap: 20px; text-align: left; padding: 0 0 32px; position: relative; }
  .process-step:not(:last-child)::after { content: ''; position: absolute; left: 24px; top: 48px; bottom: 0; width: 1px; background: rgba(109,212,0,0.2); }
}
.step-num {
  width: 48px; height: 48px; border-radius: 50%; border: 2px solid var(--green);
  background: var(--bg-white); display: flex; align-items: center; justify-content: center;
  font-family: 'DM Serif Display', serif; font-size: 1.2rem; color: var(--green);
  margin: 0 auto 16px; position: relative; z-index: 1; transition: all 0.3s; cursor: default; flex-shrink: 0;
}
.step-num:hover { background: var(--green); color: #fff; }
@media (max-width: 768px) { .step-num { margin: 0; } }
.step-title { font-family: 'Space Mono', monospace; font-size: 0.65rem; letter-spacing: 1.5px; text-transform: uppercase; color: #333; margin-bottom: 8px; }
.step-desc { color: var(--mid); font-size: 0.78rem; line-height: 1.55; }

/* ════════════════════════════════════════
   COMMODITIES
════════════════════════════════════════ */
#denergi-commodities { padding: 96px 0; background: var(--bg-light); }
.commodities-intro { margin-bottom: 48px; }
.commodities-intro p { color: var(--mid); max-width: 640px; line-height: 1.7; }
.commodity-section { margin-bottom: 48px; }
.commodity-section-title { font-family: 'DM Serif Display', serif; font-size: 2rem; color: #333; letter-spacing: 0.03em; margin-bottom: 4px; }
.commodity-section-sub { color: #666; font-size: 0.9rem; margin-bottom: 24px; }
.commodity-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 900px) { .commodity-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .commodity-grid { grid-template-columns: 1fr; } }
.commodity-card { background: var(--bg-white); border: 1px solid var(--border); border-radius: 4px; padding: 20px; transition: all 0.25s; display: flex; align-items: flex-start; gap: 12px; }
.commodity-card:hover { border-color: var(--green); background: var(--bg-light); }
.commodity-icon { font-size: 1.5rem; flex-shrink: 0; }
.commodity-name { font-family: 'DM Serif Display', serif; font-size: 1.2rem; color: #333; line-height: 1.2; }
.commodity-meta { font-family: 'Space Mono', monospace; font-size: 0.65rem; letter-spacing: 1px; text-transform: uppercase; color: var(--green); margin-top: 4px; }
.commodity-desc { color: var(--mid); font-size: 0.85rem; margin-top: 8px; }

/* ════════════════════════════════════════
   CONTACT
════════════════════════════════════════ */
#denergi-contact { padding: 96px 0; background: var(--bg-white); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; gap: 40px; } }
.contact-text p { color: var(--mid); line-height: 1.9; margin-bottom: 32px; }
.contact-email-row { display: flex; align-items: center; gap: 12px; }
.contact-email-row .label { margin-bottom: 0; }
.contact-email-row a { color: #333; font-size: 1.15rem; font-weight: 500; transition: color 0.2s; }
.contact-email-row a:hover { color: var(--green); }
.contact-form-wrap { background: var(--bg-light); border: 1px solid var(--border); border-radius: 4px; padding: 32px; box-shadow: 0 2px 20px rgba(0,0,0,0.04); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }
.form-group { margin-bottom: 16px; }
.form-label { font-family: 'Space Mono', monospace; font-size: 0.65rem; letter-spacing: 2px; text-transform: uppercase; color: var(--green); display: block; margin-bottom: 8px; }
.form-input, .form-textarea {
  width: 100%; padding: 10px 16px; background: var(--bg-white); border: 1px solid #ddd;
  border-radius: 4px; color: #333; font-family: 'Inter', sans-serif; font-size: 0.9rem; transition: all 0.2s; outline: none;
}
.form-input::placeholder, .form-textarea::placeholder { color: #999; }
.form-input:focus, .form-textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(109,212,0,0.1); }
.form-textarea { resize: none; }
.form-feedback { font-size: 0.85rem; padding: 8px 0; min-height: 24px; }
.form-feedback.success { color: var(--green); }
.form-feedback.error { color: #c0392b; }
.form-submit {
  width: 100%; padding: 14px 24px; background: var(--green); color: var(--dark);
  font-family: 'Space Mono', monospace; font-size: 0.72rem; letter-spacing: 2px;
  text-transform: uppercase; font-weight: 700; border: none; border-radius: 2px;
  cursor: pointer; transition: all 0.25s; margin-top: 8px;
}
.form-submit:hover { background: #88ff00; transform: translateY(-2px); box-shadow: 0 8px 30px var(--green-glow); }
.form-submit:disabled { background: #333; color: #fff; cursor: not-allowed; transform: none; box-shadow: none; }

/* ════════════════════════════════════════
   FOOTER
════════════════════════════════════════ */
#denergi-footer { background: var(--bg-light); border-top: 1px solid var(--border); padding: 24px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.footer-logo { font-family: 'DM Serif Display', serif; font-size: 1.4rem; color: #333; letter-spacing: 0.15em; }
.footer-logo span { color: var(--green); }
.footer-links { display: flex; align-items: center; gap: 32px; flex-wrap: wrap; }
.footer-links a, .footer-links p { font-family: 'Space Mono', monospace; font-size: 0.6rem; letter-spacing: 1.5px; text-transform: uppercase; color: #666; transition: color 0.2s; }
.footer-links a:hover { color: var(--green); }