/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #09090f;
  --bg2:       #0f0f1a;
  --bg3:       #141424;
  --border:    rgba(255,255,255,0.07);
  --text:      #f0f0f8;
  --muted:     #8888aa;
  --accent:    #5b8dee;
  --accent2:   #7c5cf7;
  --orange:    #f59e0b;
  --green:     #34d399;
  --teal:      #2dd4bf;
  --radius:    16px;
  --radius-lg: 28px;
  --font:      -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
}

html { scroll-behavior: smooth; }

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

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ── Layout Helpers ───────────────────────────────────────── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 96px 0;
}

.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

h2 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.subtitle {
  font-size: 18px;
  color: var(--muted);
  max-width: 560px;
  line-height: 1.7;
}

/* ── Glass Card ───────────────────────────────────────────── */
.card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
}

/* ── Nav ──────────────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(9,9,15,0.72);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
}

.nav-logo svg {
  width: 28px; height: 28px;
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  color: var(--muted);
  transition: color 0.2s;
}

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

.nav-cta {
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 999px;
  transition: opacity 0.2s;
}

.nav-cta:hover { opacity: 0.85; }

/* ── Hero ─────────────────────────────────────────────────── */
#hero {
  padding-top: 160px;
  padding-bottom: 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

#hero::before {
  content: '';
  position: absolute;
  top: -200px; left: 50%; transform: translateX(-50%);
  width: 900px; height: 900px;
  background: radial-gradient(ellipse at center, rgba(91,141,238,0.18) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(91,141,238,0.12);
  border: 1px solid rgba(91,141,238,0.3);
  color: #a5c0ff;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 28px;
}

.hero-badge span.dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

#hero h1 {
  font-size: clamp(44px, 7vw, 80px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 24px;
}

#hero h1 .gradient {
  background: linear-gradient(135deg, #5b8dee 0%, #7c5cf7 50%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

#hero .hero-sub {
  font-size: 20px;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 16px;
  padding: 14px 28px;
  border-radius: 999px;
  transition: opacity 0.2s, transform 0.2s;
}

.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 500;
  font-size: 16px;
  padding: 14px 28px;
  border-radius: 999px;
  transition: background 0.2s, transform 0.2s;
}

.btn-secondary:hover { background: rgba(255,255,255,0.11); transform: translateY(-1px); }

/* ── Phone Mockup ─────────────────────────────────────────── */
.hero-mockup {
  margin: 64px auto 0;
  max-width: 880px;
  display: grid;
  grid-template-columns: 1fr 1.4fr 1fr;
  gap: 20px;
  align-items: center;
}

.phone-frame {
  border-radius: 44px;
  background: var(--bg3);
  border: 1px solid rgba(255,255,255,0.1);
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.04);
}

.phone-frame.center {
  border-radius: 52px;
  box-shadow: 0 60px 120px rgba(0,0,0,0.7), 0 0 0 1px rgba(255,255,255,0.06);
}

.phone-frame img {
  width: 100%;
  display: block;
}

.phone-screen {
  width: 100%;
  aspect-ratio: 9/19.5;
  display: flex;
  flex-direction: column;
  padding: 20px 16px 16px;
  background: linear-gradient(160deg, #1a1a2e 0%, #0f0f1a 100%);
  gap: 10px;
}

.phone-screen .status-bar {
  display: flex;
  justify-content: space-between;
  font-size: 9px;
  color: rgba(255,255,255,0.5);
  margin-bottom: 4px;
}

.phone-screen .screen-title {
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}

.mock-chip-row {
  display: flex;
  gap: 5px;
}

.mock-chip {
  font-size: 7.5px;
  padding: 3px 8px;
  border-radius: 99px;
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.6);
}

.mock-chip.active {
  background: rgba(91,141,238,0.25);
  color: #a5c0ff;
}

.mock-tile-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  flex: 1;
}

.mock-tile {
  border-radius: 10px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 52px;
}

.mock-tile .tile-icon { font-size: 11px; }
.mock-tile .tile-name { font-size: 7px; font-weight: 600; color: rgba(255,255,255,0.9); margin-top: 4px; }
.mock-tile .tile-state { font-size: 6.5px; color: rgba(255,255,255,0.45); }

.mock-tile.on  { background: rgba(245,158,11,0.18); }
.mock-tile.off { background: rgba(255,255,255,0.05); }
.mock-tile.cool { background: rgba(91,141,238,0.18); }
.mock-tile.green { background: rgba(52,211,153,0.15); }

.mock-energy-bar {
  background: rgba(52,211,153,0.08);
  border: 1px solid rgba(52,211,153,0.15);
  border-radius: 8px;
  padding: 7px 8px;
}

.mock-energy-bar .e-label { font-size: 7px; color: #34d399; font-weight: 600; }
.mock-energy-bar .e-row { display: flex; justify-content: space-between; margin-top: 3px; }
.mock-energy-bar .e-val { font-size: 6.5px; color: rgba(255,255,255,0.5); }

.phone-frame.side .phone-screen {
  background: linear-gradient(160deg, #1a1220 0%, #0f0d14 100%);
}

/* ── Screenshots ──────────────────────────────────────────── */
#screenshots {
  padding-bottom: 0;
  overflow: hidden;
}

.screenshots-header {
  margin-bottom: 48px;
}

.screenshots-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding-bottom: 48px;
}

.screenshots-scroll::-webkit-scrollbar { display: none; }

.screenshots-track {
  display: flex;
  gap: 20px;
  padding: 0 max(24px, calc((100vw - 1100px) / 2));
  width: max-content;
}

.screenshot-frame {
  flex-shrink: 0;
  width: 220px;
  border-radius: 36px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.1);
  box-shadow: 0 32px 64px rgba(0,0,0,0.55), 0 0 0 1px rgba(255,255,255,0.04);
  background: var(--bg3);
}

.screenshot-frame img {
  width: 100%;
  display: block;
}

/* ── Features ─────────────────────────────────────────────── */
#features { background: var(--bg2); }

.features-header {
  max-width: 600px;
  margin-bottom: 56px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.feature-card {
  padding: 28px;
}

.feature-icon {
  width: 48px; height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 18px;
}

.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.65;
}

/* ── Domains ──────────────────────────────────────────────── */
.domains-header {
  text-align: center;
  margin-bottom: 56px;
}

.domains-header .subtitle {
  margin: 0 auto;
}

.domains-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.domain-card {
  padding: 24px;
  transition: transform 0.2s, border-color 0.2s;
}

.domain-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255,255,255,0.14);
}

.domain-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 14px;
}

.domain-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.domain-card p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
}

/* ── How It Works ─────────────────────────────────────────── */
#how { background: var(--bg2); }

.how-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
  margin-top: 56px;
}

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

.step-number {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  margin: 0 auto 20px;
  color: #fff;
}

.how-step h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.how-step p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  max-width: 280px;
  margin: 0 auto;
}

.how-connector {
  display: none;
}

/* ── Pro ──────────────────────────────────────────────────── */
#pro {
  position: relative;
  overflow: hidden;
}

#pro::before {
  content: '';
  position: absolute;
  top: 50%; right: -300px;
  transform: translateY(-50%);
  width: 700px; height: 700px;
  background: radial-gradient(ellipse, rgba(124,92,247,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.pro-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.pro-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(245,158,11,0.12);
  border: 1px solid rgba(245,158,11,0.3);
  color: var(--orange);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.pro-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 28px 0 36px;
}

.pro-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
}

.pro-list li .check {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: rgba(91,141,238,0.15);
  border: 1px solid rgba(91,141,238,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.pro-list li .check svg {
  width: 12px; height: 12px;
  stroke: var(--accent);
}

.pro-price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 4px;
}

.pro-price .amount {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.pro-price .period {
  font-size: 15px;
  color: var(--muted);
}

.price-note {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 28px;
}

.pro-card-visual {
  background: linear-gradient(135deg, #1a1432 0%, #0f0d1c 100%);
  border: 1px solid rgba(124,92,247,0.25);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: 0 40px 80px rgba(0,0,0,0.5);
}

.pro-card-visual .pro-icon-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.pro-icon-chip {
  background: rgba(124,92,247,0.12);
  border: 1px solid rgba(124,92,247,0.2);
  border-radius: 10px;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: #c4b5fd;
}

.pro-card-visual .pro-desc {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.65;
}

.pro-themes {
  display: flex;
  gap: 8px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.theme-swatch {
  width: 36px; height: 36px;
  border-radius: 10px;
  border: 2px solid rgba(255,255,255,0.08);
}

/* ── FAQ ──────────────────────────────────────────────────── */
#faq { background: var(--bg2); }

.faq-header {
  text-align: center;
  margin-bottom: 56px;
}

.faq-header .subtitle { margin: 0 auto; }

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  border-radius: var(--radius);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  transition: background 0.2s;
  gap: 16px;
}

.faq-question:hover { background: rgba(255,255,255,0.07); }

.faq-question.open {
  background: rgba(91,141,238,0.08);
  border-color: rgba(91,141,238,0.25);
  border-radius: var(--radius) var(--radius) 0 0;
}

.faq-arrow {
  width: 20px; height: 20px;
  flex-shrink: 0;
  transition: transform 0.25s;
  color: var(--muted);
}

.faq-question.open .faq-arrow { transform: rotate(180deg); }

.faq-answer {
  display: none;
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--muted);
  line-height: 1.7;
  background: rgba(91,141,238,0.06);
  border: 1px solid rgba(91,141,238,0.2);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
}

.faq-answer.open { display: block; }

/* ── Footer ───────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 36px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 20px;
}

.footer-links {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  font-size: 14px;
  color: var(--muted);
  transition: color 0.2s;
}

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

.footer-note {
  font-size: 13px;
  color: rgba(255,255,255,0.22);
}

/* ── Hamburger & Mobile Menu ──────────────────────────────── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: transform 0.25s, opacity 0.25s;
  transform-origin: center;
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--border);
  background: rgba(9,9,15,0.96);
  padding: 20px 24px 24px;
}

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

.nav-mobile ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 20px;
}

.nav-mobile ul li a {
  display: block;
  font-size: 16px;
  font-weight: 500;
  color: var(--muted);
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}

.nav-mobile ul li:last-child a { border-bottom: none; }
.nav-mobile ul li a:hover { color: var(--text); }

.nav-mobile .btn-primary {
  width: 100%;
  justify-content: center;
}

/* ── Responsive ───────────────────────────────────────────── */

/* Tablet / small desktop */
@media (max-width: 880px) {
  .hero-mockup {
    grid-template-columns: 1fr;
    max-width: 260px;
  }
  .hero-mockup .phone-frame:not(.center) { display: none; }
  .nav-links { display: none; }
  .nav-cta-desktop { display: none; }
  .nav-hamburger { display: flex; }
}

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

/* Mobile */
@media (max-width: 640px) {
  section { padding: 64px 0; }

  #hero {
    padding-top: 120px;
    padding-bottom: 56px;
  }

  #hero .hero-sub {
    font-size: 17px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
    max-width: 320px;
    justify-content: center;
    font-size: 15px;
    padding: 13px 24px;
  }

  .features-grid { grid-template-columns: 1fr; }

  .domains-grid { grid-template-columns: 1fr 1fr; }

  .how-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .subtitle { font-size: 16px; }

  .faq-question { font-size: 15px; padding: 16px 18px; }
  .faq-answer { padding: 0 18px 16px; font-size: 14px; }

  .pro-card-visual { padding: 24px; }

  .footer-links { gap: 16px; }
}

/* Small mobile */
@media (max-width: 400px) {
  .domains-grid { grid-template-columns: 1fr; }

  .container { padding: 0 16px; }

  .nav-inner { padding: 0 16px; }

  .nav-hamburger { width: 32px; height: 32px; }
}