/* ═══════════════════════════════════════════
   Herc sp. z o.o. — style.css
   ═══════════════════════════════════════════ */

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

:root {
  --blue:      #2563eb;
  --blue-dark: #1d4ed8;
  --blue-light:#dbeafe;
  --dark:      #0f172a;
  --slate:     #1e293b;
  --muted:     #64748b;
  --border:    #e2e8f0;
  --bg-alt:    #f8fafc;
  --white:     #ffffff;
  --radius:    12px;
  --shadow:    0 2px 16px rgba(15,23,42,.08);
  --shadow-lg: 0 8px 40px rgba(15,23,42,.14);
  --transition: .22s ease;
  --container: 1200px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--slate);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: url('img/bi-obszarowy-wykres.png') center center / cover no-repeat;
  opacity: 0.08;
  pointer-events: none;
  z-index: 0;
}

a { color: var(--blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--blue-dark); }
ul { list-style: none; }
img { display: block; max-width: 100%; }

/* ── CONTAINER ────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── BUTTONS ──────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}
.btn-primary:hover {
  background: var(--blue-dark);
  border-color: var(--blue-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37,99,235,.35);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.5);
}
.btn-outline:hover {
  background: rgba(255,255,255,.12);
  border-color: var(--white);
  color: var(--white);
  transform: translateY(-2px);
}
.btn-full { width: 100%; justify-content: center; }

/* ── NAVBAR ───────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}
#navbar.scrolled {
  border-color: var(--border);
  box-shadow: var(--shadow);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--dark);
  font-weight: 700;
}
.logo:hover { color: var(--dark); }
.logo-mark {
  width: 40px;
  height: 40px;
  background: var(--blue);
  color: var(--white);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
  flex-shrink: 0;
}
.logo-mark--sm {
  width: 32px;
  height: 32px;
  font-size: 1.05rem;
  border-radius: 8px;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-name { font-size: 1.1rem; font-weight: 800; letter-spacing: .04em; }
.logo-sub  { font-size: .7rem; font-weight: 500; color: var(--muted); letter-spacing: .02em; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  padding: 8px 14px;
  border-radius: 7px;
  font-size: .9rem;
  font-weight: 500;
  color: var(--slate);
  transition: all var(--transition);
}
.nav-links a:hover { background: var(--bg-alt); color: var(--blue); }
.btn-nav {
  background: var(--blue) !important;
  color: var(--white) !important;
  padding: 8px 18px !important;
}
.btn-nav:hover { background: var(--blue-dark) !important; }
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
}
.hamburger span {
  display: block;
  height: 2px;
  background: var(--slate);
  border-radius: 2px;
  transition: all .3s 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); }

/* ── SECTIONS — COMMON ────────────────────── */
section {
  padding: 96px 0;
}
.section-alt { background: var(--bg-alt); }
.section-label {
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--blue);
  background: var(--blue-light);
  padding: 4px 12px;
  border-radius: 99px;
  margin-bottom: 16px;
}
h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--dark);
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-sub {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 660px;
  margin-bottom: 56px;
  line-height: 1.7;
}

/* ── HERO ─────────────────────────────────── */
#hero {
  position: relative;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 60%, #1d4ed8 100%);
  color: var(--white);
  padding: 160px 0 100px;
  overflow: hidden;
}
.hero-bg-shapes { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.shape {
  position: absolute;
  border-radius: 50%;
  opacity: .08;
  background: var(--white);
}
.shape-1 { width: 600px; height: 600px; top: -200px; right: -150px; }
.shape-2 { width: 300px; height: 300px; bottom: -80px; left: -80px; }
.hero-bg-chart {
  position: absolute;
  right: -60px;
  bottom: -40px;
  width: 700px;
  opacity: .055;
  filter: blur(1.5px) saturate(0);
  pointer-events: none;
  user-select: none;
}
.hero-content { position: relative; z-index: 1; max-width: 780px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  color: rgba(255,255,255,.9);
  padding: 6px 16px;
  border-radius: 99px;
  font-size: .83rem;
  font-weight: 600;
  letter-spacing: .04em;
  margin-bottom: 24px;
}
#hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 1.15rem;
  color: rgba(255,255,255,.78);
  max-width: 600px;
  margin-bottom: 36px;
  line-height: 1.7;
}
.hero-sub strong { color: var(--white); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 56px; }
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius);
  padding: 20px 0;
  max-width: 780px;
}
.stat {
  flex: 1;
  min-width: 110px;
  text-align: center;
  padding: 0 20px;
}
.stat-num {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
}
.stat-label {
  display: block;
  font-size: .78rem;
  color: rgba(255,255,255,.65);
  margin-top: 4px;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,.18);
  flex-shrink: 0;
}

/* ── O SYSTEMIE ───────────────────────────── */
.arch-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
}
.arch-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.arch-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.arch-card--dark {
  background: var(--dark);
  border-color: var(--dark);
  color: rgba(255,255,255,.85);
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0 28px;
  align-items: start;
}
.arch-card--dark h3 { color: var(--white); grid-column: 2; }
.arch-card--dark p  { grid-column: 2; color: rgba(255,255,255,.78); line-height: 1.7; }
.arch-card--dark p + p { margin-top: 12px; }
.arch-card--dark strong { color: var(--white); }
.arch-icon {
  width: 52px;
  height: 52px;
  background: var(--blue-light);
  color: var(--blue);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 20px;
}
.arch-icon--light {
  background: rgba(255,255,255,.12);
  color: var(--white);
  grid-row: 1 / 3;
  grid-column: 1;
  align-self: start;
  margin-top: 4px;
  flex-shrink: 0;
  margin-bottom: 0;
}
.arch-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 14px;
}
.arch-card ul { display: flex; flex-direction: column; gap: 8px; }
.arch-card ul li {
  font-size: .9rem;
  color: var(--muted);
  padding-left: 18px;
  position: relative;
  line-height: 1.5;
}
.arch-card ul li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--blue);
  border-radius: 50%;
}

/* ── FUNKCJONALNOŚCI ──────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.feature-card:hover {
  border-color: var(--blue);
  box-shadow: 0 4px 24px rgba(37,99,235,.12);
  transform: translateY(-3px);
}
.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--blue-light);
  color: var(--blue);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  margin-bottom: 16px;
}
.feature-card h3 {
  font-size: .98rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}
.feature-card ul { display: flex; flex-direction: column; gap: 6px; }
.feature-card ul li {
  font-size: .84rem;
  color: var(--muted);
  padding-left: 16px;
  position: relative;
  line-height: 1.5;
}
.feature-card ul li::before {
  content: '';
  position: absolute;
  left: 3px;
  top: 7px;
  width: 5px;
  height: 5px;
  background: var(--blue);
  border-radius: 50%;
  opacity: .6;
}

/* ── WIZUALIZACJE NX (BI) ─────────────────── */
.bi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.bi-feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.bi-feature:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.bi-icon {
  width: 44px;
  height: 44px;
  background: var(--blue-light);
  color: var(--blue);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.bi-feature h4 { font-size: .95rem; font-weight: 700; color: var(--dark); margin-bottom: 6px; }
.bi-feature p  { font-size: .86rem; color: var(--muted); line-height: 1.6; }

/* ── O FIRMIE ─────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.about-text p {
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 16px;
  font-size: .98rem;
}
.about-text p strong { color: var(--slate); }
.sister-company {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--blue-light);
  border-radius: var(--radius);
  padding: 20px;
  margin-top: 8px;
}
.sister-icon {
  width: 40px;
  height: 40px;
  background: var(--blue);
  color: var(--white);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
.sister-company > div { display: flex; flex-direction: column; gap: 3px; font-size: .88rem; }
.sister-company strong { color: var(--dark); font-size: .95rem; }
.sister-company span  { color: var(--muted); }
.sister-company a { color: var(--blue); font-weight: 600; font-size: .88rem; }
.about-highlights { display: flex; flex-direction: column; gap: 20px; }
.highlight {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.highlight-icon {
  width: 42px;
  height: 42px;
  background: var(--blue-light);
  color: var(--blue);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
.highlight > div { display: flex; flex-direction: column; gap: 4px; }
.highlight strong { font-size: .95rem; color: var(--dark); }
.highlight span   { font-size: .85rem; color: var(--muted); line-height: 1.55; }

/* ── KONTAKT ──────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 56px;
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.contact-icon {
  width: 44px;
  height: 44px;
  background: var(--blue-light);
  color: var(--blue);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
  flex-shrink: 0;
}
.contact-item > div { display: flex; flex-direction: column; gap: 3px; }
.contact-item strong { font-size: .95rem; color: var(--dark); }
.contact-item span  { font-size: .88rem; color: var(--muted); }
.contact-item a     { font-size: .95rem; font-weight: 600; color: var(--blue); }
.contact-item a:hover { color: var(--blue-dark); }
.nip { font-size: .8rem !important; color: var(--muted) !important; }

.contact-form {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-group label { font-size: .875rem; font-weight: 600; color: var(--slate); }
.optional { font-weight: 400; color: var(--muted); font-size: .8rem; }
.form-group input,
.form-group textarea {
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
  font-size: .92rem;
  color: var(--slate);
  background: var(--white);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #94a3b8; }
.form-group input.error,
.form-group textarea.error { border-color: #ef4444; }
.form-note {
  font-size: .8rem;
  color: var(--muted);
  margin-top: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.form-success {
  display: none;
  align-items: center;
  gap: 10px;
  background: #dcfce7;
  color: #166534;
  border-radius: 8px;
  padding: 14px 18px;
  font-size: .9rem;
  font-weight: 600;
  margin-top: 16px;
}
.form-success.visible { display: flex; }
.form-success i { font-size: 1.2rem; }

/* ── CENNIK ───────────────────────────────── */
#cennik { background: var(--bg-alt); }

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 36px;
}
.pricing-card {
  background: var(--white);
  border-radius: 16px;
  padding: 36px 28px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow .2s, transform .2s;
}
.pricing-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.pricing-icon {
  width: 48px; height: 48px;
  background: var(--blue-light);
  color: var(--blue);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
}
.pricing-tag {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}
.pricing-value {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--dark);
  line-height: 1.1;
}
.pricing-value span {
  font-size: .95rem;
  font-weight: 500;
  color: var(--muted);
}
.pricing-card p {
  font-size: .88rem;
  color: var(--muted);
  line-height: 1.65;
  margin: 0;
  flex: 1;
}
.pricing-note {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--blue-light);
  border: 1px solid rgba(37,99,235,.15);
  border-radius: 10px;
  padding: 16px 20px;
  font-size: .88rem;
  color: var(--dark);
  line-height: 1.6;
}
.pricing-note i { color: var(--blue); margin-top: 3px; flex-shrink: 0; }
.pricing-note a { color: var(--blue); font-weight: 600; margin-left: 4px; }
.pricing-note a:hover { text-decoration: underline; }

/* ── FOOTER ───────────────────────────────── */
footer {
  background: var(--dark);
  padding: 36px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-logo-text {
  display: flex;
  align-items: baseline;
  gap: 3px;
}
.footer-logo-text .logo-name { color: var(--white); font-size: .95rem; letter-spacing: .06em; }
.footer-logo-sub { color: rgba(255,255,255,.5); font-size: .75rem; font-weight: 500; }
.footer-copy  { font-size: .82rem; color: rgba(255,255,255,.45); }
.footer-links a { font-size: .82rem; color: rgba(255,255,255,.55); }
.footer-links a:hover { color: var(--white); }
.footer-version { font-size: .75rem; color: rgba(255,255,255,.3); font-family: monospace; }

/* ── ENTERPRISE STRIP ────────────────────── */
.enterprise-strip {
  margin-top: 48px;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
  border-radius: var(--radius);
  padding: 28px 36px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.enterprise-strip-label {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.5);
  white-space: nowrap;
  flex-shrink: 0;
}
.enterprise-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.enterprise-pills span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  color: rgba(255,255,255,.9);
  padding: 6px 14px;
  border-radius: 99px;
  font-size: .83rem;
  font-weight: 500;
  white-space: nowrap;
}
.enterprise-pills span i {
  color: #4ade80;
  font-size: .75rem;
}

/* ── BI GALLERY ───────────────────────────── */
.bi-gallery {
  margin-top: 56px;
}
.bi-gallery-label {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 20px;
  text-align: center;
}
.bi-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.bi-screen {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  position: relative;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}
.bi-screen:hover { transform: translateY(-4px); box-shadow: 0 16px 48px rgba(15,23,42,.18); }
.bi-screen-bar {
  background: #1e293b;
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.bi-screen-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: #475569;
  flex-shrink: 0;
}
.bi-screen-dot:nth-child(1) { background: #ef4444; }
.bi-screen-dot:nth-child(2) { background: #f59e0b; }
.bi-screen-dot:nth-child(3) { background: #22c55e; }
.bi-screen-title {
  font-size: .72rem;
  color: rgba(255,255,255,.4);
  margin-left: 8px;
  font-family: monospace;
}
.bi-screen img {
  width: 100%;
  display: block;
  transition: opacity var(--transition);
}
.bi-screen-overlay {
  position: absolute;
  inset: 36px 0 0 0;
  background: rgba(15,23,42,.0);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: .9rem;
  font-weight: 600;
  color: var(--white);
  opacity: 0;
  transition: all var(--transition);
}
.bi-screen:hover .bi-screen-overlay {
  opacity: 1;
  background: rgba(15,23,42,.45);
}

/* ── LIGHTBOX ─────────────────────────────── */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,.88);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 24px;
  gap: 16px;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: min(1100px, 95vw);
  max-height: 82vh;
  border-radius: 8px;
  box-shadow: 0 24px 80px rgba(0,0,0,.6);
  object-fit: contain;
}
.lightbox-caption {
  color: rgba(255,255,255,.7);
  font-size: .88rem;
  text-align: center;
}
.lightbox-close {
  position: absolute;
  top: 20px; right: 24px;
  background: rgba(255,255,255,.12);
  border: none;
  color: var(--white);
  width: 40px; height: 40px;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.lightbox-close:hover { background: rgba(255,255,255,.25); }

/* ── SCROLL ANIMATION ─────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .55s ease, transform .55s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* ── RESPONSIVE ───────────────────────────── */
@media (max-width: 1100px) {
  .arch-grid { grid-template-columns: 1fr 1fr; }
  .arch-card--dark { grid-column: 1 / -1; }
}

@media (max-width: 860px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .pricing-grid { grid-template-columns: 1fr; }
  .bi-grid { grid-template-columns: 1fr 1fr; }
  .bi-gallery-grid { grid-template-columns: 1fr; }
  .hero-bg-chart { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-stats { max-width: 100%; }
}

@media (max-width: 768px) {
  section { padding: 72px 0; }

  .hamburger { display: flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: 68px; left: 0; right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 12px 16px 20px;
    gap: 4px;
    box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 16px; width: 100%; border-radius: 8px; }

  .arch-grid { grid-template-columns: 1fr; }
  .arch-card--dark { grid-template-columns: 1fr; }
  .arch-icon--light { margin-bottom: 16px; grid-row: auto; grid-column: auto; }
  .arch-card--dark h3, .arch-card--dark p { grid-column: 1; }

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

  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 24px; }

  .footer-inner { flex-direction: column; align-items: flex-start; gap: 10px; }
  .hero-stats { flex-direction: column; align-items: stretch; }
  .stat-divider { width: 100%; height: 1px; }
  .stat { padding: 10px 20px; text-align: left; display: flex; gap: 12px; align-items: center; }
  .stat-num { font-size: 1.3rem; }
}

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
}