/* =====================
   RESET & BASE
   ===================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:           #0d1117;
  --surface:      #111827;
  --surface-2:    #162032;
  --surface-3:    #1c2a40;
  --border:       #1e2d44;
  --border-light: #243354;
  --accent:       #2563eb;
  --accent-light: #3b82f6;
  --accent-glow:  rgba(37, 99, 235, 0.12);
  --text:         #f0f4f8;
  --text-2:       #8899b4;
  --text-muted:   #4d6080;
  --green:        #22c55e;
  --red:          #ef4444;
  --radius:       8px;
  --radius-lg:    12px;
  --radius-xl:    16px;
  --shadow:       0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg:    0 8px 48px rgba(0,0,0,0.5);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
h3 { font-size: 1.15rem; }
p  { color: var(--text-2); }
a  { color: inherit; text-decoration: none; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* =====================
   BUTTONS
   ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  border: none;
  transition: all 0.18s ease;
  font-family: inherit;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #1d4ed8; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(37,99,235,0.35); }
.btn-ghost { background: transparent; color: var(--text-2); border: 1px solid var(--border-light); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }
.btn-lg { padding: 0.85rem 1.75rem; font-size: 1rem; border-radius: var(--radius-lg); }

/* =====================
   NAV
   ===================== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  background: rgba(13,17,23,0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-shrink: 0;
}
.logo-icon {
  width: 30px; height: 30px;
  background: var(--accent);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
}
.logo-text {
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--text);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.1rem;
  margin-left: auto;
}
.nav-link {
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  color: var(--text-2);
  transition: all 0.15s;
}
.nav-link:hover, .nav-link.active { color: var(--text); background: var(--surface-2); }
.nav-cta { margin-left: 0.75rem; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-2);
  border-radius: 2px;
  transition: all 0.2s;
}

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem 2rem 1.5rem;
  border-top: 1px solid var(--border);
}
.nav-mobile.open { display: flex; }
.nav-mobile-link {
  padding: 0.6rem 0.5rem;
  color: var(--text-2);
  font-size: 0.95rem;
  border-radius: var(--radius);
  transition: color 0.15s;
}
.nav-mobile-link:hover { color: var(--text); }

@media (max-width: 720px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
}

/* =====================
   HERO
   ===================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 100px 0 5rem;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.hero-bg svg { width: 100%; height: 100%; opacity: 0.1; }

.hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 3.5rem;
  align-items: center;
}
@media (max-width: 920px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-mockup { display: none; }
}

.hero-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--accent-light);
  margin-bottom: 1.1rem;
}
.hero-title { margin-bottom: 1.15rem; color: var(--text); }
.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-2);
  margin-bottom: 2rem;
  max-width: 460px;
}
.hero-actions { display: flex; gap: 0.875rem; flex-wrap: wrap; }

/* =====================
   APP MOCKUP
   ===================== */
.hero-mockup { perspective: 1200px; }

.mockup-window {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 80px rgba(37,99,235,0.08);
  transform: rotateY(-4deg) rotateX(2deg);
  transition: transform 0.4s ease;
}
.mockup-window:hover { transform: rotateY(0deg) rotateX(0deg); }

.mockup-titlebar {
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  padding: 0.65rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.mockup-logo {
  display: flex; align-items: center; gap: 0.4rem;
  font-size: 0.68rem; font-weight: 800; letter-spacing: 0.1em; color: var(--text);
}
.mockup-logo-icon {
  width: 18px; height: 18px;
  background: var(--accent);
  border-radius: 3px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.6rem;
}
.mockup-version { font-weight: 400; color: var(--text-muted); }
.mockup-nav { display: flex; gap: 0.3rem; }
.mockup-nav span {
  font-size: 0.65rem; color: var(--text-muted);
  padding: 0.18rem 0.45rem; border-radius: 4px;
}
.mockup-nav span.active { background: var(--surface-3); color: var(--text); }

.mockup-body { padding: 1.1rem; }
.mockup-header-label { font-size: 0.58rem; color: var(--text-muted); letter-spacing: 0.1em; text-transform: uppercase; }
.mockup-header-title { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: 0.85rem; }

.mockup-stats { display: flex; gap: 1.25rem; margin-bottom: 1rem; }
.mockup-stat { display: flex; flex-direction: column; gap: 0.05rem; }
.mockup-stat-num { font-size: 1rem; font-weight: 700; color: var(--text); }
.mockup-stat-label { font-size: 0.55rem; color: var(--text-muted); letter-spacing: 0.08em; text-transform: uppercase; }

.mockup-toolbar {
  display: flex; align-items: center; gap: 0.4rem; margin-bottom: 0.9rem;
}
.mockup-search {
  flex: 1; background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 5px; padding: 0.35rem 0.65rem; font-size: 0.65rem; color: var(--text-muted);
}
.mockup-filters { display: flex; gap: 0.2rem; }
.mockup-filter {
  font-size: 0.6rem; padding: 0.25rem 0.5rem;
  border-radius: 4px; color: var(--text-muted); border: 1px solid var(--border);
}
.mockup-filter.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.mockup-new-btn {
  font-size: 0.6rem; padding: 0.3rem 0.6rem;
  background: var(--accent); color: #fff; border-radius: 4px; font-weight: 600; white-space: nowrap;
}

.mockup-table { width: 100%; border-collapse: collapse; }
.mockup-table th {
  font-size: 0.55rem; color: var(--text-muted); letter-spacing: 0.08em;
  text-transform: uppercase; text-align: left; padding: 0.35rem 0.45rem;
  border-bottom: 1px solid var(--border);
}
.mockup-table td {
  font-size: 0.65rem; color: var(--text-2);
  padding: 0.55rem 0.45rem; border-bottom: 1px solid var(--border); vertical-align: middle;
}
.mockup-table tr:last-child td { border-bottom: none; }

.mockup-order-num { color: var(--accent-light); font-weight: 500; }
.mockup-name { color: var(--text); }
.mockup-status { display: flex; align-items: center; gap: 0.3rem; }
.mockup-dot { width: 5px; height: 5px; border-radius: 50%; }
.mockup-dot.draft { background: var(--text-muted); }
.mockup-dot.approved { background: var(--green); }
.mockup-dot.complete { background: var(--accent-light); }

.mockup-actions { display: flex; gap: 0.25rem; }
.mockup-approve-btn {
  font-size: 0.58rem; padding: 0.15rem 0.4rem;
  border: 1px solid var(--border); border-radius: 3px; color: var(--text-muted);
}
.mockup-delete-btn {
  font-size: 0.58rem; padding: 0.15rem 0.4rem;
  border: 1px solid var(--red); border-radius: 3px; color: var(--red);
}
.mockup-open-link { color: var(--text-muted); font-size: 0.63rem; }

.mockup-footer-row {
  display: flex; justify-content: space-between;
  font-size: 0.55rem; color: var(--text-muted);
  margin-top: 0.7rem; padding-top: 0.6rem;
  border-top: 1px solid var(--border);
}

/* =====================
   SECTION SHARED
   ===================== */
.section-label {
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--accent-light); margin-bottom: 0.7rem;
}
.section-title { color: var(--text); margin-bottom: 0.9rem; }
.section-subtitle { font-size: 1.05rem; max-width: 520px; margin-bottom: 3rem; }

/* =====================
   FEATURES
   ===================== */
.features { padding: 6rem 0; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  transition: border-color 0.2s, transform 0.2s;
}
.feature-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.feature-icon {
  width: 42px; height: 42px;
  border-radius: var(--radius);
  background: var(--accent-glow);
  border: 1px solid rgba(37,99,235,0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem; margin-bottom: 1rem;
}
.feature-card h3 { color: var(--text); margin-bottom: 0.45rem; }
.feature-card p { font-size: 0.9rem; }

/* =====================
   HOW IT WORKS
   ===================== */
.how-it-works {
  padding: 6rem 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
  position: relative;
}
.step { padding: 1.5rem; }
.step-num {
  width: 34px; height: 34px;
  border-radius: 50%; background: var(--accent); color: #fff;
  font-weight: 700; font-size: 0.85rem;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1rem;
}
.step h3 { color: var(--text); margin-bottom: 0.4rem; }
.step p { font-size: 0.9rem; }

/* =====================
   ROLES
   ===================== */
.roles { padding: 6rem 0; }
.roles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-top: 3rem;
}
.role-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  transition: border-color 0.2s;
}
.role-card:hover { border-color: var(--border-light); }
.role-badge {
  display: inline-block; font-size: 0.62rem; font-weight: 700;
  letter-spacing: 0.1em; padding: 0.18rem 0.55rem;
  border-radius: 4px; border: 1px solid; margin-bottom: 1rem;
}
.badge-admin   { color: var(--red);          border-color: var(--red);          }
.badge-operator{ color: var(--accent-light);  border-color: var(--accent-light);  }
.badge-viewer  { color: var(--text-muted);    border-color: var(--border-light);  }
.role-card h3 { color: var(--text); margin-bottom: 0.45rem; }
.role-card p { font-size: 0.9rem; }

/* =====================
   CTA
   ===================== */
.cta { padding: 6rem 0; }
.cta-inner {
  background: linear-gradient(135deg, var(--surface-2), var(--surface-3));
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 4rem 3rem;
  text-align: center;
}
.cta-inner h2 { color: var(--text); margin-bottom: 1rem; }
.cta-inner p { max-width: 460px; margin: 0 auto 2rem; }
.cta-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* =====================
   FOOTER
   ===================== */
.footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 2.25rem 0;
}
.footer-inner {
  display: flex; align-items: center;
  justify-content: space-between; flex-wrap: wrap; gap: 1rem;
}
.footer-copy { font-size: 0.82rem; color: var(--text-muted); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { font-size: 0.82rem; color: var(--text-muted); transition: color 0.15s; }
.footer-links a:hover { color: var(--text); }

/* =====================
   CONTACT PAGE
   ===================== */
.contact-hero {
  padding: 130px 0 3.5rem;
  text-align: center;
}
.contact-hero h1 { margin-bottom: 1rem; }
.contact-hero p { max-width: 480px; margin: 0 auto; font-size: 1.05rem; }

.contact-section { padding: 2rem 0 6rem; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 4rem;
  align-items: start;
}
@media (max-width: 780px) {
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}

.contact-info h2 { color: var(--text); margin-bottom: 0.75rem; font-size: 1.4rem; }
.contact-info > p { margin-bottom: 2.25rem; }

.contact-detail { display: flex; align-items: flex-start; gap: 0.875rem; margin-bottom: 1.25rem; }
.contact-detail-icon {
  width: 34px; height: 34px;
  border-radius: var(--radius); background: var(--accent-glow);
  border: 1px solid rgba(37,99,235,0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.95rem; flex-shrink: 0; margin-top: 2px;
}
.contact-detail-text label {
  display: block; font-size: 0.7rem; font-weight: 600;
  color: var(--text-muted); letter-spacing: 0.08em;
  text-transform: uppercase; margin-bottom: 0.15rem;
}
.contact-detail-text span { font-size: 0.9rem; color: var(--text-2); }

.contact-form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
}
.contact-form-card h3 { color: var(--text); margin-bottom: 0.35rem; }
.contact-form-card > p { font-size: 0.9rem; margin-bottom: 2rem; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 500px) { .form-row { grid-template-columns: 1fr; } }

.form-group { margin-bottom: 1.15rem; }
.form-group label {
  display: block; font-size: 0.78rem; font-weight: 600;
  color: var(--text-2); margin-bottom: 0.35rem; letter-spacing: 0.04em;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%; background: var(--surface-2);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 0.68rem 0.9rem; font-family: inherit;
  font-size: 0.9rem; color: var(--text);
  transition: border-color 0.18s; outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { border-color: var(--accent); }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }
.form-group select { appearance: none; cursor: pointer; }
.form-group select option { background: var(--surface-2); }
.form-group textarea { min-height: 120px; resize: vertical; }

.form-submit { width: 100%; padding: 0.88rem; font-size: 1rem; border-radius: var(--radius-lg); margin-top: 0.5rem; }

.form-success { display: none; text-align: center; padding: 2rem 1rem; }
.success-icon { font-size: 2.75rem; margin-bottom: 1rem; }
.form-success h3 { color: var(--text); margin-bottom: 0.5rem; }
.form-success p { font-size: 0.95rem; }