/* ==========================================================================
   SmartNest Labs — Stylesheet
   Building Smart Mobile Experiences
   ========================================================================== */

/* ---------- Design tokens ---------- */
:root {
  --color-primary: #2E5934;
  --color-secondary: #3C6E47;
  --color-accent: #F4B400;
  --color-bg: #0F172A;
  --color-bg-alt: #0B121F;
  --color-card: #1E293B;
  --color-card-border: #2A3A52;
  --color-text: #FFFFFF;
  --color-text-secondary: #CBD5E1;
  --color-text-muted: #8B99AE;

  --font-display: "Poppins", sans-serif;
  --font-body: "Poppins", sans-serif;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 28px;

  --container-width: 1200px;
  --gap-section: clamp(4rem, 8vw, 7rem);

  --shadow-card: 0 20px 40px -20px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 0 1px rgba(244, 180, 0, 0.15), 0 20px 60px -20px rgba(46, 89, 52, 0.5);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3, h4, h5, h6 { font-family: var(--font-display); margin: 0 0 0.6em; line-height: 1.15; letter-spacing: -0.02em; }
p { margin: 0 0 1em; color: var(--color-text-secondary); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* ---------- Utility ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--color-accent);
  display: inline-block;
}

.section-head {
  max-width: 640px;
  margin: 0 auto 3.5rem;
  text-align: center;
}
.section-head h2 { font-size: clamp(1.9rem, 3.4vw, 2.6rem); font-weight: 700; }
.section-head p { font-size: 1.05rem; }
.section-head.align-left { margin-left: 0; text-align: left; }

section { padding: var(--gap-section) 0; position: relative; }
.section-alt { background: var(--color-bg-alt); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 1.9rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
  color: #fff;
  box-shadow: 0 12px 30px -10px rgba(60, 110, 71, 0.65);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 18px 36px -10px rgba(60, 110, 71, 0.8); }
.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: rgba(255, 255, 255, 0.25);
}
.btn-outline:hover { border-color: var(--color-accent); color: var(--color-accent); transform: translateY(-3px); }
.btn-accent {
  background: var(--color-accent);
  color: #17210b;
  box-shadow: 0 12px 30px -10px rgba(244, 180, 0, 0.55);
}
.btn-accent:hover { transform: translateY(-3px); box-shadow: 0 18px 36px -10px rgba(244, 180, 0, 0.7); }
.btn-block { width: 100%; }

/* fade-in reveal */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1.is-visible { transition-delay: 0.08s; }
.reveal-delay-2.is-visible { transition-delay: 0.16s; }
.reveal-delay-3.is-visible { transition-delay: 0.24s; }
.reveal-delay-4.is-visible { transition-delay: 0.32s; }
.reveal-delay-5.is-visible { transition-delay: 0.4s; }

/* ---------- Hex signature motif ---------- */
/* Cards echo the hexagonal "nest" shape from the logo mark, with a
   gold circuit-node accent tracing the top-left corner. */
.hex-frame {
  position: relative;
  border: 1px solid var(--color-card-border);
}
.hex-frame::before {
  content: "";
  position: absolute;
  top: -1px; left: -1px;
  width: 26px; height: 26px;
  border-top: 2px solid var(--color-accent);
  border-left: 2px solid var(--color-accent);
  border-radius: var(--radius-md) 0 0 0;
  opacity: 0.85;
  pointer-events: none;
}
.hex-frame::after {
  content: "";
  position: absolute;
  top: 8px; left: 8px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 10px 2px rgba(244, 180, 0, 0.6);
  pointer-events: none;
}

/* ---------- Navigation ---------- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 999;
  padding: 1.1rem 0;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background 0.3s ease, padding 0.3s ease, box-shadow 0.3s ease;
}
.navbar.scrolled {
  padding: 0.7rem 0;
  background: rgba(15, 23, 42, 0.92);
  box-shadow: 0 10px 30px -15px rgba(0,0,0,0.6);
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 0.6rem; font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; letter-spacing: -0.01em; }
.brand img { height: 38px; width: auto; }
.brand span.accent { color: var(--color-accent); }

.nav-links { display: flex; align-items: center; gap: 2.1rem; }
.nav-links a {
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  position: relative;
  padding: 0.3rem 0;
  transition: color 0.25s ease;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -4px;
  width: 0%;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.3s var(--ease);
}
.nav-links a:hover,
.nav-links a.active { color: var(--color-text); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: 1rem; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
  z-index: 1001;
}
.hamburger span {
  width: 24px; height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  padding: clamp(8rem, 16vw, 11rem) 0 6rem;
  position: relative;
  background:
    radial-gradient(60% 55% at 82% 8%, rgba(46, 89, 52, 0.35), transparent 60%),
    radial-gradient(45% 40% at 8% 92%, rgba(244, 180, 0, 0.08), transparent 60%);
  overflow: hidden;
}
.hero .container {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3.5rem;
  align-items: center;
}
.hero-tag {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  background: rgba(244, 180, 0, 0.1);
  border: 1px solid rgba(244, 180, 0, 0.35);
  color: var(--color-accent);
  font-size: 0.8rem; font-weight: 600;
  margin-bottom: 1.5rem;
}
.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.7rem);
  font-weight: 700;
  margin-bottom: 1.1rem;
}
.hero h1 .stroke { -webkit-text-stroke: 1px var(--color-accent); color: transparent; }
.hero p.lead { font-size: 1.12rem; max-width: 520px; margin-bottom: 2.2rem; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-art { position: relative; display: flex; align-items: center; justify-content: center; }
.hero-art svg { width: 100%; height: auto; max-width: 480px; }

/* ---------- Marquee / trust strip ---------- */
.trust-strip { padding: 2rem 0; border-top: 1px solid rgba(255,255,255,0.06); border-bottom: 1px solid rgba(255,255,255,0.06); }
.trust-strip .container { display: flex; align-items: center; justify-content: center; gap: 3rem; flex-wrap: wrap; opacity: 0.75; }
.trust-strip span { font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-text-muted); }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 3.5rem; align-items: center; }
.about-visual {
  aspect-ratio: 1/1;
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, var(--color-card), var(--color-bg-alt));
  border: 1px solid var(--color-card-border);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  overflow: hidden;
}
.about-visual img { width: 55%; opacity: 0.95; }
.about-points { display: grid; gap: 1.4rem; margin-top: 2rem; }
.about-point { display: flex; gap: 1rem; align-items: flex-start; }
.about-point .num { font-family: var(--font-display); font-weight: 700; color: var(--color-accent); font-size: 1rem; width: 2rem; flex-shrink: 0; }
.about-point h4 { margin-bottom: 0.3rem; font-size: 1.05rem; }
.about-point p { margin: 0; font-size: 0.95rem; }

/* ---------- Cards grid ---------- */
.grid { display: grid; gap: 1.6rem; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--color-card);
  border-radius: var(--radius-md);
  padding: 2.1rem;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card); border-color: rgba(244, 180, 0, 0.3); }

.icon-badge {
  width: 54px; height: 54px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
  margin-bottom: 1.4rem;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.08);
}
.icon-badge svg { width: 26px; height: 26px; stroke: #fff; }

.card h3 { font-size: 1.15rem; margin-bottom: 0.55rem; }
.card p { font-size: 0.95rem; margin-bottom: 1.3rem; }
.card-link {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-size: 0.88rem; font-weight: 600; color: var(--color-accent);
}
.card-link svg { width: 15px; height: 15px; transition: transform 0.3s var(--ease); }
.card-link:hover svg { transform: translateX(4px); }

/* ---------- Tech stack badges ---------- */
.tech-grid { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; }
.tech-badge {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.85rem 1.3rem;
  border-radius: 999px;
  background: var(--color-card);
  border: 1px solid var(--color-card-border);
  font-size: 0.9rem; font-weight: 500;
  color: var(--color-text-secondary);
  transition: border-color 0.3s ease, color 0.3s ease, transform 0.3s var(--ease);
}
.tech-badge:hover { border-color: var(--color-accent); color: var(--color-text); transform: translateY(-3px); }
.tech-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-accent); }

/* ---------- Why choose us ---------- */
.feature-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.6rem; }
.feature-item { text-align: center; padding: 2rem 1.2rem; }
.feature-item .icon-badge { margin: 0 auto 1.3rem; }
.feature-item h3 { font-size: 1.05rem; }
.feature-item p { font-size: 0.9rem; }

/* ---------- Stats ---------- */
.stats-section {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-lg);
  margin: 0 1.5rem;
  padding: 3.5rem 2rem;
}
.stats-section .container { max-width: var(--container-width); padding: 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; text-align: center; }
.stat-num { font-family: var(--font-display); font-weight: 700; font-size: clamp(2rem, 4vw, 2.8rem); color: #fff; }
.stat-num .plus { color: var(--color-accent); }
.stat-label { font-size: 0.9rem; color: rgba(255,255,255,0.85); text-transform: uppercase; letter-spacing: 0.08em; margin-top: 0.3rem; }

/* ---------- CTA ---------- */
.cta-band {
  text-align: center;
  padding: 5rem 2rem;
  border-radius: var(--radius-lg);
  background: var(--color-card);
  border: 1px solid var(--color-card-border);
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(50% 60% at 50% 0%, rgba(244, 180, 0, 0.12), transparent 70%);
}
.cta-band h2 { font-size: clamp(1.8rem, 3.4vw, 2.5rem); position: relative; }
.cta-band p { max-width: 520px; margin: 0 auto 2rem; position: relative; }
.cta-band .hero-actions { justify-content: center; position: relative; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 3rem; align-items: start; }
.contact-info-item { display: flex; gap: 1rem; padding: 1.4rem 0; border-bottom: 1px solid rgba(255,255,255,0.07); }
.contact-info-item:last-child { border-bottom: none; }
.contact-info-item h4 { margin-bottom: 0.25rem; font-size: 1rem; }
.contact-info-item p { margin: 0; font-size: 0.94rem; word-break: break-word; }
.social-row { display: flex; gap: 0.8rem; margin-top: 1.8rem; }
.social-row a {
  width: 42px; height: 42px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-card); border: 1px solid var(--color-card-border);
  transition: all 0.3s var(--ease);
}
.social-row a:hover { background: var(--color-accent); border-color: var(--color-accent); transform: translateY(-3px); }
.social-row a svg { width: 18px; height: 18px; stroke: currentColor; }
.social-row a:hover svg { stroke: #17210b; }

.form-group { margin-bottom: 1.3rem; }
.form-group label { display: block; font-size: 0.86rem; font-weight: 600; margin-bottom: 0.5rem; color: var(--color-text-secondary); }
.form-control {
  width: 100%;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-card-border);
  background: var(--color-bg-alt);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.form-control:focus { outline: none; border-color: var(--color-accent); box-shadow: 0 0 0 3px rgba(244, 180, 0, 0.15); }
textarea.form-control { resize: vertical; min-height: 130px; }
.form-note { font-size: 0.82rem; color: var(--color-text-muted); margin-top: 1rem; }
.form-status { font-size: 0.9rem; margin-top: 1rem; display: none; }
.form-status.success { color: #6ee7a7; display: block; }
.form-status.error { color: #f87171; display: block; }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-bg-alt); padding: 4rem 0 2rem; border-top: 1px solid rgba(255,255,255,0.06); }
.footer-top { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 2.5rem; margin-bottom: 3rem; }
.footer-brand .brand { margin-bottom: 1rem; }
.footer-brand p { font-size: 0.92rem; max-width: 300px; }
.footer-col h5 { font-size: 0.85rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-text-muted); margin-bottom: 1.2rem; }
.footer-col ul li { margin-bottom: 0.7rem; }
.footer-col a { font-size: 0.94rem; color: var(--color-text-secondary); transition: color 0.25s ease; }
.footer-col a:hover { color: var(--color-accent); }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
  padding-top: 2rem; border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 0.85rem; color: var(--color-text-muted);
}

/* ---------- Scroll to top ---------- */
.scroll-top {
  position: fixed; right: 1.6rem; bottom: 1.6rem;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--color-accent); color: #17210b;
  display: flex; align-items: center; justify-content: center;
  border: none; box-shadow: 0 10px 25px -8px rgba(244, 180, 0, 0.6);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: all 0.35s var(--ease);
  z-index: 900;
}
.scroll-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.scroll-top svg { width: 20px; height: 20px; }

/* ---------- Simple / legal pages ---------- */
.page-hero { padding: clamp(8rem, 14vw, 10rem) 0 3.5rem; text-align: center; }
.page-hero h1 { font-size: clamp(2rem, 4vw, 2.9rem); }
.page-hero p { max-width: 560px; margin: 0 auto; }
.legal-content { max-width: 760px; margin: 0 auto; }
.legal-content h2 { font-size: 1.35rem; margin-top: 2.4rem; color: var(--color-text); }
.legal-content h2:first-child { margin-top: 0; }
.legal-content p, .legal-content li { color: var(--color-text-secondary); font-size: 0.98rem; }
.legal-content ul { margin: 1rem 0; padding-left: 1.3rem; list-style: disc; }
.legal-content li { margin-bottom: 0.5rem; }
.legal-updated { color: var(--color-text-muted); font-size: 0.88rem; margin-bottom: 2.5rem; }

.about-hero-mini { display: grid; grid-template-columns: 1fr; gap: 1rem; }

/* ---------- Responsive ---------- */
@media (max-width: 992px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .feature-strip { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); row-gap: 2.5rem; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .about-visual { max-width: 420px; margin: 0 auto; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-art { order: -1; max-width: 320px; margin: 0 auto; }
  .nav-links { display: none; }
  .nav-actions .btn-primary.desktop-only { display: none; }
  .hamburger { display: flex; }

  .mobile-menu {
    position: fixed; inset: 0;
    background: var(--color-bg);
    display: flex; flex-direction: column;
    padding: 6.5rem 2rem 2rem;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease);
    z-index: 998;
  }
  .mobile-menu.open { transform: translateX(0); }
  .mobile-menu a {
    font-size: 1.3rem; font-weight: 600; padding: 0.9rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    color: var(--color-text);
  }
  .mobile-menu .btn { margin-top: 1.5rem; }
}

@media (max-width: 640px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .feature-strip { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr; }
  .hero-actions, .cta-band .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn, .cta-band .btn { width: 100%; }
  section { padding: 3.5rem 0; }
}