/* PYK Energy — Design System */

:root {
  --bg: #0d1220;
  --bg-alt: #131a2c;
  --bg-card: #1a2338;
  --bg-card-hover: #212c47;
  --border: #2f3c5c;
  --text: #f5f7fb;
  --text-dim: #b3bcd4;
  --text-faint: #7e88a4;
  --blue: #3b82f6;
  --blue-bright: #7db8fb;
  --blue-dim: #1d4ed8;
  --gradient-blue: linear-gradient(135deg, #2563eb 0%, #7db8fb 100%);
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --max-width: 1180px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

section {
  padding: 88px 0;
}

@media (max-width: 700px) {
  section {
    padding: 56px 0;
  }
}

/* Background texture: faint diagonal solar-panel grid */
.panel-grid-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 13, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-mark {
  height: 34px;
  width: auto;
  display: block;
}

.footer-grid .logo-mark {
  height: 30px;
}

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

.main-nav a {
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--text-dim);
  font-weight: 500;
  transition: color 0.15s, background 0.15s;
  white-space: nowrap;
}

.main-nav a:hover {
  color: var(--text);
  background: var(--bg-card);
}

.main-nav a.active {
  color: var(--text);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.lang-switch {
  display: flex;
  gap: 2px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
}

.lang-switch button {
  border: none;
  background: transparent;
  color: var(--text-faint);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.lang-switch button.active {
  background: var(--gradient-blue);
  color: #fff;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-blue);
  color: #fff;
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(37, 99, 235, 0.45);
}

.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-outline:hover {
  border-color: var(--blue);
  color: var(--blue-bright);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 8px 10px;
  cursor: pointer;
}

/* ---------- Hero ---------- */

.hero {
  padding: 110px 0 90px;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue-bright);
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.25);
  padding: 7px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  line-height: 1.1;
  margin: 0 0 20px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.hero h1 .accent {
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.lead {
  max-width: 640px;
  margin: 0 auto 40px;
  font-size: 1.15rem;
  color: var(--text-dim);
}

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

/* ---------- Trust badges ---------- */

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 36px;
}

.badge-pill {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--text-dim);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 999px;
}

/* ---------- WhatsApp button ---------- */

.btn-whatsapp {
  background: #25d366;
  color: #fff;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background: #1fb955;
  transform: translateY(-2px);
}

.btn-whatsapp svg {
  flex: 0 0 auto;
}

/* ---------- Skill badges ---------- */

.skill-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.skill-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--blue-bright);
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  padding: 8px 15px;
  border-radius: 999px;
}

/* ---------- FAQ accordion ---------- */

.faq-list {
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  color: var(--text);
  font-family: var(--font);
  font-size: 1.05rem;
  font-weight: 600;
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  cursor: pointer;
}

.faq-question .icon {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(59, 130, 246, 0.12);
  color: var(--blue-bright);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: transform 0.25s ease;
}

.faq-item.open .faq-question .icon {
  transform: rotate(135deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-item.open .faq-answer {
  max-height: 400px;
}

.faq-answer p {
  color: var(--text-dim);
  font-size: 0.95rem;
  margin: 0 0 24px;
}

/* ---------- Transparency band ---------- */

.transparency-band {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.14), rgba(96, 165, 250, 0.06));
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: var(--radius);
  padding: 44px 36px;
  text-align: center;
}

.transparency-band h3 {
  font-size: 1.3rem;
  margin: 0 0 14px;
}

.transparency-band p {
  color: var(--text-dim);
  max-width: 580px;
  margin: 0 auto;
}

/* ---------- Fact list (offer cards) ---------- */

.fact-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.fact-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-dim);
  font-size: 0.92rem;
  margin-bottom: 10px;
}

.fact-list li::before {
  content: "✓";
  flex: 0 0 auto;
  color: var(--blue-bright);
  font-weight: 700;
}

/* ---------- Illustrations ---------- */

.illustration {
  margin-top: 56px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.illustration img {
  width: 100%;
  height: auto;
  display: block;
}

.hero-illustration {
  margin-top: 64px;
}

/* ---------- Scroll reveal ---------- */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s cubic-bezier(0.16, 0.84, 0.44, 1), transform 0.7s cubic-bezier(0.16, 0.84, 0.44, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- Hero entrance animation ---------- */

@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero .eyebrow,
.hero h1,
.hero p.lead,
.hero .hero-actions {
  animation: heroFadeUp 0.8s cubic-bezier(0.16, 0.84, 0.44, 1) both;
}

.hero h1 {
  animation-delay: 0.08s;
}

.hero p.lead {
  animation-delay: 0.16s;
}

.hero .hero-actions {
  animation-delay: 0.24s;
}

@media (prefers-reduced-motion: reduce) {
  .hero .eyebrow,
  .hero h1,
  .hero p.lead,
  .hero .hero-actions {
    animation: none;
  }
}

/* ---------- Path split cards ---------- */

.path-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 72px;
}

@media (max-width: 820px) {
  .path-grid {
    grid-template-columns: 1fr;
  }
}

.path-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: left;
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s, background 0.2s;
}

.path-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.18), transparent 70%);
}

.path-card:hover {
  transform: translateY(-4px);
  border-color: var(--blue-dim);
  background: var(--bg-card-hover);
}

.path-card .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--blue-bright);
  margin-bottom: 14px;
}

.path-card h3 {
  font-size: 1.5rem;
  margin: 0 0 12px;
}

.path-card p {
  color: var(--text-dim);
  margin: 0 0 22px;
}

.path-card ul {
  margin-bottom: 26px;
}

.path-card li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-dim);
  font-size: 0.94rem;
  margin-bottom: 10px;
}

.path-card li::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--blue);
}

/* ---------- Section headings ---------- */

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}

.section-head .eyebrow {
  margin-bottom: 18px;
}

.section-head h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  margin: 0 0 14px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.section-head p {
  color: var(--text-dim);
  font-size: 1.05rem;
}

.section-head.align-left {
  text-align: left;
  margin: 0 0 48px;
}

/* ---------- Feature / stat grids ---------- */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 900px) {
  .grid-3 {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 620px) {
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--blue-dim);
}

.card .icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--gradient-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.3rem;
}

.card h3 {
  font-size: 1.15rem;
  margin: 0 0 10px;
}

.card p {
  color: var(--text-dim);
  font-size: 0.95rem;
  margin: 0;
}

.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 44px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

@media (max-width: 700px) {
  .stat-strip {
    grid-template-columns: 1fr 1fr;
  }
}

.stat {
  text-align: center;
}

.stat .num {
  font-size: 2.4rem;
  font-weight: 800;
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat .label {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-top: 6px;
}

/* ---------- Comparison table ---------- */

.compare {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.compare > div {
  background: var(--bg-card);
  padding: 18px 20px;
  font-size: 0.94rem;
}

.compare .head {
  background: var(--bg-alt);
  font-weight: 700;
  text-align: center;
}

.compare .head.highlight {
  background: var(--gradient-blue);
  color: #fff;
}

.compare .row-label {
  color: var(--text-dim);
}

.compare .yes {
  color: var(--blue-bright);
  text-align: center;
  font-weight: 600;
}

.compare .no {
  color: var(--text-faint);
  text-align: center;
}

@media (max-width: 700px) {
  .compare {
    grid-template-columns: 1fr;
  }
  .compare .head {
    display: none;
  }
  .compare .row-label {
    background: var(--bg-alt);
    font-weight: 700;
    color: var(--text);
  }
}

/* ---------- Timeline / process ---------- */

.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}

@media (max-width: 900px) {
  .process {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .process {
    grid-template-columns: 1fr;
  }
}

.process .step {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 22px;
}

.process .step .step-num {
  counter-increment: step;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.35);
  color: var(--blue-bright);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.process .step .step-num::before {
  content: counter(step);
}

.process .step h4 {
  margin: 0 0 8px;
  font-size: 1.02rem;
}

.process .step p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.9rem;
}

/* ---------- CTA band ---------- */

.cta-band {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.cta-band h2 {
  font-size: clamp(1.6rem, 3.2vw, 2.2rem);
  margin: 0 0 16px;
}

.cta-band p {
  color: var(--text-dim);
  max-width: 560px;
  margin: 0 auto 32px;
}

/* ---------- Forms ---------- */

.form-toggle {
  display: flex;
  gap: 10px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.form-toggle button {
  flex: 1;
  min-width: 200px;
  padding: 16px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-dim);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.form-toggle button.active {
  border-color: var(--blue);
  color: var(--text);
  background: var(--bg-card-hover);
  box-shadow: inset 0 0 0 1px var(--blue);
}

.contact-form {
  display: none;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}

.contact-form.active {
  display: block;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

@media (max-width: 600px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.field {
  margin-bottom: 20px;
}

.field label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 13px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--blue);
}

.field textarea {
  resize: vertical;
  min-height: 120px;
}

.form-note {
  font-size: 0.85rem;
  color: var(--text-faint);
  margin-top: 16px;
}

.contact-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 48px;
}

@media (max-width: 700px) {
  .contact-info-grid {
    grid-template-columns: 1fr;
  }
}

.placeholder-note {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fbbf24;
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.3);
  padding: 3px 10px;
  border-radius: 6px;
  margin-left: 8px;
  vertical-align: middle;
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 48px;
}

@media (max-width: 800px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 500px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-grid h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  margin: 0 0 18px;
}

.footer-grid p {
  color: var(--text-dim);
  font-size: 0.92rem;
  margin: 0 0 16px;
  max-width: 280px;
}

.footer-grid ul li {
  margin-bottom: 12px;
}

.footer-grid a {
  color: var(--text-dim);
  font-size: 0.92rem;
  transition: color 0.15s;
}

.footer-grid a:hover {
  color: var(--blue-bright);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-faint);
}

.footer-bottom a:hover {
  color: var(--blue-bright);
}

/* ---------- Page hero (inner pages) ---------- */

.page-hero {
  padding: 64px 0 24px;
}

.page-hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  margin: 0 0 16px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.page-hero p.lead {
  color: var(--text-dim);
  font-size: 1.08rem;
  max-width: 680px;
  margin: 0;
}

.breadcrumb {
  font-size: 0.85rem;
  color: var(--text-faint);
  margin-bottom: 18px;
}

.breadcrumb a:hover {
  color: var(--blue-bright);
}

/* ---------- Legal pages ---------- */

.legal-content h2 {
  font-size: 1.3rem;
  margin: 40px 0 14px;
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content p,
.legal-content li {
  color: var(--text-dim);
  font-size: 0.96rem;
}

.legal-content ul {
  margin: 12px 0;
  padding-left: 20px;
  list-style: disc;
}

/* ---------- Responsive nav ---------- */

@media (max-width: 940px) {
  .main-nav {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    gap: 2px;
    display: none;
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    padding: 14px 16px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-right .btn-primary {
    display: none;
  }
}

.text-center {
  text-align: center;
}

.mt-48 {
  margin-top: 48px;
}