/* ================================================================
   LOOPMAXX-DEV — Shared Stylesheet
   Poppins · IIoT Industrial · Dark/Light
================================================================ */

@font-face {
  font-family: "Poppins";
  src: url("./fonts/Poppins-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Poppins";
  src: url("./fonts/Poppins-Bold.ttf") format("truetype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* ── Themes ─────────────────────────────────────────────────── */
:root[data-theme="dark"] {
  --bg: #0a0c0f;
  --bg2: #0f1217;
  --bg3: #141820;
  --card: #111419;
  --border: #1e2530;
  --border2: #2a3340;
  --text: #e2e8f0;
  --text2: #8896a8;
  --text3: #4a5a6a;
  --accent: #00c2ff;
  --accent-glow: rgba(0, 194, 255, 0.15);
  --accent-dim: rgba(0, 194, 255, 0.08);
  --accent-border: rgba(0, 194, 255, 0.22);
  --orange: #ff6b35;
  --orange-dim: rgba(255, 107, 53, 0.1);
  --orange-border: rgba(255, 107, 53, 0.25);
  --green: #00d97e;
  --green-dim: rgba(0, 217, 126, 0.1);
  --red: #ff3b3b;
  --overlay: rgba(0, 0, 0, 0.65);
  --grid-line: rgba(255, 255, 255, 0.025);
}
:root[data-theme="light"] {
  --bg: #f0f2f5;
  --bg2: #e8ebf0;
  --bg3: #dde1e8;
  --card: #f8f9fb;
  --border: #d0d7e2;
  --border2: #b8c2d0;
  --text: #0f1a28;
  --text2: #4a5a6e;
  --text3: #8a9aaa;
  --accent: #0062cc;
  --accent-glow: rgba(0, 98, 204, 0.12);
  --accent-dim: rgba(0, 98, 204, 0.07);
  --accent-border: rgba(0, 98, 204, 0.2);
  --orange: #e05520;
  --orange-dim: rgba(224, 85, 32, 0.08);
  --orange-border: rgba(224, 85, 32, 0.22);
  --green: #009955;
  --green-dim: rgba(0, 153, 85, 0.08);
  --red: #cc2222;
  --overlay: rgba(0, 0, 0, 0.35);
  --grid-line: rgba(0, 0, 0, 0.04);
}

/* ── Reset ───────────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "Poppins", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  transition:
    background 0.3s,
    color 0.3s;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  display: block;
  max-width: 100%;
}

/* ── Layout ──────────────────────────────────────────────────── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}
.container--narrow {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Nav ─────────────────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 300;
  background: rgba(10, 12, 15, 0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition:
    background 0.3s,
    border-color 0.3s;
}
[data-theme="light"] nav {
  background: rgba(240, 242, 245, 0.92);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 62px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 7px;
  background: var(--accent);
  color: #0a0c0f;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 800;
}
.logo-text {
  color: var(--text);
}
.logo-text span {
  color: var(--text3);
  font-weight: 400;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
}
.nav-links a {
  display: block;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text2);
  transition: color 0.2s;
  letter-spacing: 0.01em;
}
.nav-links a:hover {
  color: var(--accent);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.theme-btn {
  background: none;
  border: 1px solid var(--border2);
  border-radius: 7px;
  color: var(--text2);
  cursor: pointer;
  padding: 6px 12px;
  font-size: 12px;
  font-family: "Poppins", sans-serif;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 5px;
}
.theme-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.nav-cta {
  background: var(--accent);
  color: #0a0c0f;
  padding: 8px 18px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s;
  display: inline-block;
}
.nav-cta:hover {
  opacity: 0.85;
}

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 38px;
  height: 38px;
  background: none;
  border: 1px solid var(--border2);
  border-radius: 7px;
  cursor: pointer;
  gap: 5px;
}
.burger span {
  display: block;
  width: 17px;
  height: 1.5px;
  background: var(--text2);
  transition:
    transform 0.28s,
    opacity 0.28s;
  transform-origin: center;
}
.burger.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.burger.open span:nth-child(2) {
  opacity: 0;
}
.burger.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile drawer */
.mob-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 250;
  background: var(--overlay);
  opacity: 0;
  transition: opacity 0.3s;
}
.mob-overlay.vis {
  display: block;
}
.mob-overlay.act {
  opacity: 1;
}

.mob-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 260;
  width: 290px;
  background: var(--bg2);
  border-left: 1px solid var(--border);
  padding: 80px 0 2rem;
  transform: translateX(100%);
  transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
}
.mob-drawer.open {
  transform: translateX(0);
}
.mob-links {
  list-style: none;
  flex: 1;
}
.mob-links a {
  display: block;
  padding: 15px 2rem;
  font-size: 15px;
  font-weight: 500;
  color: var(--text2);
  border-bottom: 1px solid var(--border);
  transition:
    color 0.2s,
    background 0.2s;
}
.mob-links a:hover {
  color: var(--accent);
  background: var(--accent-dim);
}
.mob-footer {
  padding: 1.5rem 2rem 0;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

@media (min-width: 901px) {
  .mob-drawer {
    display: none !important;
  }
  .mob-overlay {
    display: none !important;
  }
}

/* ── Section utilities ───────────────────────────────────────── */
section {
  padding: 96px 0;
}

.section-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: 20px;
  padding: 4px 14px;
  margin-bottom: 1.25rem;
}
.section-chip::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
}
.section-chip.orange {
  color: var(--orange);
  background: var(--orange-dim);
  border-color: var(--orange-border);
}

h2.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1rem;
}
.section-lead {
  font-size: 15px;
  color: var(--text2);
  line-height: 1.8;
  max-width: 58ch;
  margin-bottom: 3rem;
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn-primary {
  background: var(--accent);
  color: #0a0c0f;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition:
    opacity 0.2s,
    box-shadow 0.2s;
  display: inline-block;
  box-shadow: 0 4px 24px rgba(0, 194, 255, 0.25);
}
.btn-primary:hover {
  opacity: 0.88;
  box-shadow: 0 6px 32px rgba(0, 194, 255, 0.35);
}

.btn-outline {
  background: none;
  border: 1px solid var(--border2);
  color: var(--text2);
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-block;
  font-family: "Poppins", sans-serif;
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Footer ──────────────────────────────────────────────────── */
footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer-brand p {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.7;
  margin-top: 1rem;
  max-width: 32ch;
}
.footer-col h5 {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text3);
  margin-bottom: 1rem;
}
.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-col ul a {
  font-size: 13px;
  color: var(--text2);
  transition: color 0.2s;
}
.footer-col ul a:hover {
  color: var(--accent);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text3);
}
.footer-bottom a {
  color: var(--text3);
  transition: color 0.2s;
}
.footer-bottom a:hover {
  color: var(--accent);
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 900px) {
  .burger {
    display: flex;
  }
  .nav-links {
    display: none;
  }
  .nav-cta {
    display: none;
  }
  section {
    padding: 64px 0;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  .theme-btn span:last-child {
    display: none;
  }
  .theme-btn {
    padding: 6px 8px;
  }
}
@media (max-width: 500px) {
  .container {
    padding: 0 1.1rem;
  }
}