/* ============================================================
   ERÇETIN GRUP – Light Liquid Glass (White + Soft Blue)
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Brand – light */
  --bg:           #f4f8fc;
  --bg-soft:      #eaf2fb;
  --surface:      #ffffff;
  --blue-deep:    #0b3d6e;
  --blue-mid:     #1565a8;
  --blue-bright:  #1e7fd6;
  --blue-glow:    #3b9aef;
  --cyan:         #1490d0;
  --cyan-soft:    rgba(30,127,214,.10);
  --ink:          #14324f;
  --ink-soft:     #4a647c;
  --ink-muted:    #7a92a8;
  --line:         rgba(20,80,140,.12);
  --line-strong:  rgba(20,80,140,.18);

  /* Glass – light */
  --glass-bg:     rgba(255,255,255,.72);
  --glass-border: rgba(255,255,255,.9);
  --glass-hover:  rgba(255,255,255,.92);
  --glass-blur:   blur(18px) saturate(160%);
  --glass-blur-sm:blur(12px) saturate(150%);

  /* Shadows */
  --shadow-glass: 0 10px 30px rgba(20,80,140,.08), inset 0 1px 0 rgba(255,255,255,.9);
  --shadow-card:  0 8px 24px rgba(20,80,140,.10);
  --shadow-btn:   0 6px 18px rgba(30,127,214,.28);
  --shadow-glow:  0 0 28px rgba(59,154,239,.18);

  /* Typography */
  --font:         'Inter', system-ui, sans-serif;
  --fs-xs:        .75rem;
  --fs-sm:        .875rem;
  --fs-base:      1rem;
  --fs-lg:        1.125rem;
  --fs-xl:        1.375rem;
  --fs-2xl:       1.75rem;
  --fs-3xl:       2.25rem;
  --fs-4xl:       3rem;
  --fs-hero:      clamp(2.4rem, 5.5vw, 4.2rem);

  /* Spacing */
  --space-1: .25rem; --space-2: .5rem; --space-3: .75rem; --space-4: 1rem;
  --space-6: 1.5rem; --space-8: 2rem; --space-12: 3rem; --space-16: 4rem;
  --space-24: 6rem;

  /* Radii */
  --r-sm:   8px;
  --r-md:   14px;
  --r-lg:   20px;
  --r-xl:   28px;
  --r-full: 9999px;

  /* Transitions */
  --t-fast:   .15s ease;
  --t-base:   .25s ease;
  --t-slow:   .4s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 15% 0%, rgba(59,154,239,.16) 0%, transparent 55%),
    radial-gradient(ellipse 55% 45% at 90% 15%, rgba(20,144,208,.10) 0%, transparent 50%),
    radial-gradient(ellipse 50% 40% at 50% 100%, rgba(234,242,251,.9) 0%, transparent 60%),
    linear-gradient(180deg, #f8fbff 0%, #eef5fb 100%);
  pointer-events: none;
  z-index: -1;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
address { font-style: normal; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ============================================================
   GLASS COMPONENTS
   ============================================================ */

.glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-glass);
}

.glass-card {
  background: var(--surface);
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-card);
  transition: transform var(--t-slow), box-shadow var(--t-slow), border-color var(--t-slow);
}
.glass-card:hover {
  transform: translateY(-5px);
  border-color: rgba(30,127,214,.28);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  border-radius: var(--r-full);
  font-weight: 600; font-size: var(--fs-base);
  cursor: pointer; border: none;
  transition: all var(--t-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue-bright), var(--cyan));
  color: #fff;
  box-shadow: var(--shadow-btn);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(30,127,214,.38);
  filter: brightness(1.05);
}

.btn-glass {
  background: rgba(255,255,255,.85);
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
  border: 1px solid var(--line-strong);
  color: var(--blue-deep);
  box-shadow: var(--shadow-glass);
}
.btn-glass:hover {
  background: #fff;
  transform: translateY(-2px);
}

.btn-glass-sm {
  display: inline-flex; align-items: center;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--r-full);
  background: linear-gradient(135deg, var(--blue-bright), var(--cyan));
  color: #fff;
  font-weight: 600; font-size: var(--fs-sm);
  box-shadow: var(--shadow-btn);
  transition: all var(--t-base);
}
.btn-glass-sm:hover { filter: brightness(1.08); transform: translateY(-1px); }

/* ============================================================
   NAVIGATION
   ============================================================ */

.site-header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: var(--space-3) 0;
  transition: all var(--t-base);
}

.glass-nav {
  background: rgba(255,255,255,.78);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 4px 24px rgba(20,80,140,.06);
  padding: var(--space-4) 0;
}

.site-header.scrolled .glass-nav {
  background: rgba(255,255,255,.94);
  box-shadow: 0 8px 28px rgba(20,80,140,.10);
}

.nav-inner {
  max-width: 1200px; margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex; align-items: center; justify-content: space-between;
}

.nav-logo img { height: 40px; width: auto; }

.nav-menu {
  display: flex; align-items: center; gap: var(--space-2);
}
.nav-menu a {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--r-full);
  font-size: var(--fs-sm); font-weight: 500;
  color: var(--ink-soft);
  transition: all var(--t-base);
  position: relative;
}
.nav-menu a:hover, .nav-menu a.active {
  color: var(--blue-deep);
  background: var(--cyan-soft);
}
.nav-menu a.active::after {
  content: '';
  position: absolute; bottom: -2px; left: 50%; transform: translateX(-50%);
  width: 20px; height: 2px;
  background: linear-gradient(90deg, var(--blue-bright), var(--cyan));
  border-radius: 1px;
}

.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: var(--space-2);
}
.nav-toggle span {
  width: 22px; height: 2px;
  background: var(--blue-deep);
  border-radius: 2px;
  transition: all var(--t-base);
  display: block;
}

/* ============================================================
   HERO
   ============================================================ */

.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  position: relative; overflow: hidden;
  padding-top: 80px;
}

.hero-bg {
  position: absolute; inset: 0;
  background-image: url('/assets/img/hero-bg.jpg');
  background-size: cover; background-position: center;
  filter: brightness(.78) saturate(.85);
  z-index: 0;
}

.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(244,248,252,.94) 0%, rgba(234,242,251,.82) 45%, rgba(255,255,255,.55) 100%);
  z-index: 1;
}

.hero-particles {
  position: absolute; inset: 0; z-index: 2; overflow: hidden;
}
.particle {
  position: absolute;
  width: 3px; height: 3px;
  background: var(--blue-glow);
  border-radius: 50%;
  animation: float-up linear infinite;
  opacity: 0;
}

@keyframes float-up {
  0%   { transform: translateY(100vh) scale(0); opacity: 0; }
  10%  { opacity: .5; }
  90%  { opacity: .25; }
  100% { transform: translateY(-20px) scale(1.5); opacity: 0; }
}

.hero-content {
  position: relative; z-index: 3;
  max-width: 1200px; margin: 0 auto; padding: 0 var(--space-6);
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-16); align-items: center;
}

.hero-text { display: flex; flex-direction: column; gap: var(--space-6); }

.hero-badge {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--cyan-soft);
  border: 1px solid rgba(30,127,214,.22);
  border-radius: var(--r-full);
  font-size: var(--fs-xs); font-weight: 600;
  color: var(--blue-mid); letter-spacing: .08em; text-transform: uppercase;
  width: fit-content;
}

.hero-title {
  font-size: var(--fs-hero);
  font-weight: 900; line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--blue-deep);
}
.hero-title span {
  background: linear-gradient(135deg, var(--blue-bright), var(--cyan));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc { font-size: var(--fs-lg); color: var(--ink-soft); max-width: 480px; }

.hero-btns { display: flex; gap: var(--space-4); flex-wrap: wrap; }

.hero-stats {
  display: flex; gap: var(--space-8); margin-top: var(--space-4);
}
.stat-item { display: flex; flex-direction: column; gap: var(--space-1); }
.stat-num { font-size: var(--fs-2xl); font-weight: 800; color: var(--blue-bright); }
.stat-label { font-size: var(--fs-xs); color: var(--ink-muted); text-transform: uppercase; letter-spacing: .06em; }

.hero-card {
  padding: var(--space-8);
  display: flex; flex-direction: column; gap: var(--space-6);
}
.hero-card h3 { font-size: var(--fs-lg); font-weight: 700; color: var(--blue-deep); }

.contact-quick { display: flex; flex-direction: column; gap: var(--space-4); }
.contact-item {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--r-md);
  background: rgba(234,242,251,.7);
  border: 1px solid var(--line);
  transition: all var(--t-base);
  font-size: var(--fs-sm);
}
.contact-item:hover { background: #fff; border-color: rgba(30,127,214,.25); }
.contact-item .icon { font-size: 1.25rem; flex-shrink: 0; }
.contact-item strong { display: block; font-size: var(--fs-xs); color: var(--ink-muted); }
.contact-item a { color: var(--blue-deep); font-weight: 600; }

/* ============================================================
   SECTIONS
   ============================================================ */

.section { padding: var(--space-24) 0; }
.section-sm { padding: var(--space-16) 0; }

.section-header { text-align: center; margin-bottom: var(--space-12); }
.section-tag {
  display: inline-block;
  padding: var(--space-1) var(--space-4);
  background: var(--cyan-soft);
  border: 1px solid rgba(30,127,214,.2);
  border-radius: var(--r-full);
  font-size: var(--fs-xs); font-weight: 700;
  color: var(--blue-mid); letter-spacing: .1em; text-transform: uppercase;
  margin-bottom: var(--space-3);
}
.section-title {
  font-size: var(--fs-3xl); font-weight: 800;
  line-height: 1.2; color: var(--blue-deep);
}
.section-title span {
  background: linear-gradient(135deg, var(--blue-bright), var(--cyan));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-desc { color: var(--ink-soft); font-size: var(--fs-lg); max-width: 560px; margin: var(--space-4) auto 0; }

/* ============================================================
   SERVICES
   ============================================================ */

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

.service-card {
  padding: var(--space-8) var(--space-6);
  text-align: center;
  position: relative; overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--blue-bright), var(--cyan), transparent);
  opacity: 0; transition: opacity var(--t-slow);
}
.service-card:hover::before { opacity: 1; }

.service-icon {
  font-size: 2.5rem; margin-bottom: var(--space-4);
  filter: drop-shadow(0 0 10px rgba(30,127,214,.25));
}
.service-card h3 { font-size: var(--fs-xl); font-weight: 700; margin-bottom: var(--space-3); color: var(--blue-deep); }
.service-card p { color: var(--ink-soft); font-size: var(--fs-sm); line-height: 1.7; }

/* ============================================================
   PRODUCT CARDS
   ============================================================ */

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: var(--space-6);
}

.product-card {
  overflow: hidden;
  display: flex; flex-direction: column;
}

.product-img-wrap {
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: var(--r-lg) var(--r-lg) 0 0;
  background: linear-gradient(180deg, #f7fbff 0%, #eaf2fb 100%);
  position: relative;
}
.product-img-wrap::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(244,248,252,.55) 0%, transparent 45%);
  pointer-events: none;
}
.product-img-wrap img {
  width: 100%; height: 100%;
  object-fit: cover; padding: 0;
  transition: transform var(--t-slow);
}
.product-card:hover .product-img-wrap img { transform: scale(1.05); }

.product-body {
  padding: var(--space-6);
  flex: 1; display: flex; flex-direction: column; gap: var(--space-3);
}
.product-cat {
  font-size: var(--fs-xs); font-weight: 700;
  color: var(--blue-bright); text-transform: uppercase; letter-spacing: .08em;
}
.product-body h3, .product-body h2 { font-size: var(--fs-base); font-weight: 700; line-height: 1.4; color: var(--blue-deep); }
.product-body p { color: var(--ink-soft); font-size: var(--fs-sm); line-height: 1.6; flex: 1; }

.product-footer {
  display: flex; align-items: center; justify-content: flex-end;
  margin-top: auto; padding-top: var(--space-4);
  border-top: 1px solid var(--line);
}
.product-price {
  font-size: var(--fs-xl); font-weight: 800;
  color: var(--blue-bright);
}
.product-price small { font-size: var(--fs-xs); color: var(--ink-muted); display: block; }

.btn-detail {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--r-full);
  background: var(--cyan-soft);
  border: 1px solid rgba(30,127,214,.2);
  color: var(--blue-deep);
  font-size: var(--fs-sm); font-weight: 600;
  transition: all var(--t-base);
}
.btn-detail:hover {
  background: linear-gradient(135deg, var(--blue-bright), var(--cyan));
  border-color: transparent;
  color: #fff;
}

/* ============================================================
   CATEGORY PILLS
   ============================================================ */

.filter-pills {
  display: flex; gap: var(--space-3); flex-wrap: wrap; margin-bottom: var(--space-8);
}
.pill {
  padding: var(--space-2) var(--space-5);
  border-radius: var(--r-full);
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: var(--fs-sm); font-weight: 500;
  cursor: pointer; transition: all var(--t-base);
  text-decoration: none;
}
.pill:hover, .pill.active {
  background: linear-gradient(135deg, var(--blue-bright), var(--cyan));
  border-color: transparent; color: #fff;
}

/* ============================================================
   WHY US / FEATURES
   ============================================================ */

.features-section { background: rgba(255,255,255,.45); }

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-6);
}
.feature-item {
  display: flex; flex-direction: column; align-items: center;
  gap: var(--space-3); text-align: center;
  padding: var(--space-6);
}
.feature-icon { font-size: 2rem; }
.feature-item h4 { font-size: var(--fs-base); font-weight: 700; color: var(--blue-deep); }
.feature-item p { font-size: var(--fs-sm); color: var(--ink-soft); }

/* ============================================================
   PAGE HEADER
   ============================================================ */

.page-header {
  padding: calc(80px + var(--space-16)) 0 var(--space-16);
  text-align: center;
  position: relative; overflow: hidden;
}
.page-header::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(30,127,214,.08), rgba(20,144,208,.04));
}
.page-header .container { position: relative; z-index: 1; }
.page-header h1 { font-size: var(--fs-4xl); font-weight: 900; color: var(--blue-deep); }
.page-header p { color: var(--ink-soft); font-size: var(--fs-lg); margin-top: var(--space-3); }
.breadcrumb {
  display: flex; align-items: center; gap: var(--space-2);
  font-size: var(--fs-sm); color: var(--ink-muted);
  margin-bottom: var(--space-4); justify-content: center;
}
.breadcrumb a { color: var(--blue-bright); }
.breadcrumb span { color: var(--ink-muted); }

/* ============================================================
   PRODUCT DETAIL
   ============================================================ */

.product-detail-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-12);
  align-items: start;
}
.product-detail-img {
  border-radius: var(--r-xl);
  overflow: hidden;
  aspect-ratio: 1;
  background: linear-gradient(180deg, #f7fbff, #eaf2fb);
  padding: 0;
  display: flex; align-items: center; justify-content: center;
}
.product-detail-img img { width: 100%; height: 100%; object-fit: cover; }
.product-detail-body { display: flex; flex-direction: column; gap: var(--space-6); }
.product-detail-body h1 { font-size: var(--fs-3xl); font-weight: 800; line-height: 1.2; color: var(--blue-deep); }
.product-detail-price {
  font-size: var(--fs-4xl); font-weight: 900;
  background: linear-gradient(135deg, var(--blue-bright), var(--cyan));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.product-detail-desc { color: var(--ink-soft); font-size: var(--fs-lg); line-height: 1.7; }
.product-cta-wrap { display: flex; gap: var(--space-4); flex-wrap: wrap; }

/* ============================================================
   CONTACT / ABOUT
   ============================================================ */

.contact-grid {
  display: grid; grid-template-columns: 1fr 1.5fr; gap: var(--space-12);
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: var(--space-6); }
.contact-info h2 { font-size: var(--fs-2xl); font-weight: 800; color: var(--blue-deep); }
.contact-info p { color: var(--ink-soft); }

.contact-card {
  padding: var(--space-6);
  display: flex; gap: var(--space-4); align-items: flex-start;
}
.contact-card .ci-icon { font-size: 1.5rem; flex-shrink: 0; }
.contact-card h4 { font-weight: 700; margin-bottom: var(--space-1); color: var(--blue-deep); }
.contact-card p, .contact-card a { color: var(--ink-soft); font-size: var(--fs-sm); }
.contact-card a:hover { color: var(--blue-bright); }

.contact-form { display: flex; flex-direction: column; gap: var(--space-4); }
.form-group { display: flex; flex-direction: column; gap: var(--space-2); }
.form-group label { font-size: var(--fs-sm); font-weight: 600; color: var(--ink-soft); }
.form-control {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: var(--space-4);
  color: var(--ink);
  font-size: var(--fs-base);
  font-family: var(--font);
  transition: border-color var(--t-base), box-shadow var(--t-base);
  width: 100%;
  resize: vertical;
}
.form-control::placeholder { color: var(--ink-muted); }
.form-control:focus {
  outline: none;
  border-color: var(--blue-glow);
  box-shadow: 0 0 0 3px rgba(30,127,214,.15);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.form-success {
  padding: var(--space-4);
  background: rgba(16,185,129,.1);
  border: 1px solid rgba(16,185,129,.25);
  border-radius: var(--r-md);
  color: #059669;
  font-size: var(--fs-sm);
  display: none;
}

.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-12); align-items: center; }
.about-img { border-radius: var(--r-xl); overflow: hidden; }
.about-body { display: flex; flex-direction: column; gap: var(--space-6); }
.about-body h2 { font-size: var(--fs-3xl); font-weight: 800; line-height: 1.2; color: var(--blue-deep); }
.about-body p { color: var(--ink-soft); line-height: 1.8; }

/* ============================================================
   FOOTER
   ============================================================ */

.site-footer { margin-top: var(--space-24); }
.footer-glass {
  background: rgba(255,255,255,.86);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-top: 1px solid var(--line);
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-12); padding: var(--space-16) var(--space-6);
}
.footer-col h3 { font-size: var(--fs-base); font-weight: 700; margin-bottom: var(--space-6); color: var(--blue-deep); }
.footer-col p { color: var(--ink-soft); font-size: var(--fs-sm); line-height: 1.7; margin-top: var(--space-4); }
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-col ul a { color: var(--ink-soft); font-size: var(--fs-sm); transition: color var(--t-base); }
.footer-col ul a:hover { color: var(--blue-bright); }
.footer-col address p { display: flex; align-items: center; gap: var(--space-2); margin: 0; }
.footer-col address a { color: var(--ink-soft); }
.footer-col address a:hover { color: var(--blue-bright); }
.footer-social { display: flex; gap: var(--space-3); margin-top: var(--space-4); }
.footer-social a {
  width: 36px; height: 36px;
  border-radius: var(--r-full);
  background: #fff;
  border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  color: var(--blue-mid);
  transition: all var(--t-base);
}
.footer-social a:hover { background: var(--blue-bright); border-color: var(--blue-bright); color: #fff; }

.footer-bottom {
  border-top: 1px solid var(--line);
  padding: var(--space-6) var(--space-6);
}
.footer-bottom p { text-align: center; color: var(--ink-muted); font-size: var(--fs-xs); }

/* ============================================================
   FLOATING WHATSAPP
   ============================================================ */

.float-wa {
  position: fixed; bottom: var(--space-6); right: var(--space-6);
  z-index: 999;
  width: 56px; height: 56px;
  background: #25d366;
  border-radius: var(--r-full);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,.45);
  animation: wa-pulse 2.5s infinite;
  transition: transform var(--t-base), box-shadow var(--t-base);
}
.float-wa:hover { transform: scale(1.12); box-shadow: 0 6px 28px rgba(37,211,102,.6); }
.float-wa svg { color: #fff; }

@keyframes wa-pulse {
  0%,100% { box-shadow: 0 4px 20px rgba(37,211,102,.45); }
  50%      { box-shadow: 0 4px 20px rgba(37,211,102,.45), 0 0 0 8px rgba(37,211,102,.12); }
}

.divider-glow {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(30,127,214,.25), var(--blue-bright), rgba(30,127,214,.25), transparent);
  margin: 0;
  border: none;
}

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; }
  .hero-card { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .product-detail-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none; flex-direction: column; align-items: flex-start;
    position: fixed; top: 0; right: 0; bottom: 0; width: 280px;
    background: rgba(255,255,255,.97);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    padding: 5rem var(--space-6) var(--space-6);
    border-left: 1px solid var(--line);
    gap: var(--space-2);
    z-index: 1001;
    transform: translateX(100%);
    transition: transform var(--t-slow);
  }
  .nav-menu.open { display: flex; transform: translateX(0); }
  .nav-toggle { display: flex; z-index: 1002; position: relative; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .form-row { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; gap: var(--space-6); }
  .features-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  :root { --fs-hero: 2.2rem; }
  .features-grid { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .btn { justify-content: center; }
}

/* ============================================================
   PRODUCT CATALOG (modern listing)
   ============================================================ */

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.catalog-header h1 span {
  background: linear-gradient(135deg, var(--blue-bright), var(--cyan));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.catalog-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--space-8);
  align-items: start;
}

.catalog-sidebar {
  position: sticky;
  top: 96px;
  padding: var(--space-6);
}

.catalog-sidebar-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--line);
}
.catalog-sidebar-head h2 {
  font-size: var(--fs-base); font-weight: 800; color: var(--blue-deep);
}
.catalog-total {
  font-size: var(--fs-xs); font-weight: 700;
  color: var(--blue-mid);
  background: var(--cyan-soft);
  padding: .2rem .55rem;
  border-radius: var(--r-full);
}

.cat-nav { display: flex; flex-direction: column; gap: .35rem; }
.cat-link {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  align-items: center;
  gap: .55rem;
  padding: .7rem .8rem;
  border-radius: var(--r-md);
  color: var(--ink-soft);
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: all var(--t-base);
}
.cat-link:hover { background: var(--cyan-soft); color: var(--blue-deep); }
.cat-link.active {
  background: linear-gradient(135deg, rgba(30,127,214,.12), rgba(20,144,208,.08));
  color: var(--blue-deep);
  font-weight: 700;
  box-shadow: inset 3px 0 0 var(--blue-bright);
}
.cat-ico { font-size: .95rem; text-align: center; opacity: .85; }
.cat-count {
  font-size: .7rem; font-weight: 700;
  min-width: 1.6rem; text-align: center;
  padding: .15rem .4rem;
  border-radius: var(--r-full);
  background: rgba(20,80,140,.08);
  color: var(--ink-muted);
}
.cat-link.active .cat-count {
  background: var(--blue-bright); color: #fff;
}

.catalog-toolbar {
  display: flex; gap: var(--space-4); flex-wrap: wrap;
  align-items: center; justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-5);
  position: sticky; top: 88px; z-index: 20;
}

.search-wrap {
  position: relative; flex: 1; min-width: 220px;
}
.search-ico {
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
  color: var(--ink-muted); font-size: 1rem; pointer-events: none;
}
.catalog-search {
  width: 100%;
  padding: .85rem 2.4rem .85rem 2.4rem;
  border: 1px solid var(--line);
  border-radius: var(--r-full);
  background: #fff;
  color: var(--ink);
  font: inherit;
  transition: border-color var(--t-base), box-shadow var(--t-base);
}
.catalog-search:focus {
  outline: none;
  border-color: var(--blue-glow);
  box-shadow: 0 0 0 3px rgba(30,127,214,.14);
}
.search-clear {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  width: 24px; height: 24px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-soft); color: var(--ink-soft); font-size: 1.1rem;
  line-height: 1;
}

.toolbar-right {
  display: flex; align-items: center; gap: .75rem; flex-wrap: wrap;
}
.catalog-select {
  padding: .7rem 1rem;
  border-radius: var(--r-full);
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: var(--fs-sm);
  cursor: pointer;
}
.view-toggle {
  display: inline-flex;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-full);
  overflow: hidden;
}
.view-btn {
  border: none; background: transparent;
  width: 40px; height: 38px;
  cursor: pointer; color: var(--ink-muted);
  font-size: 1rem;
  transition: all var(--t-fast);
}
.view-btn.active {
  background: var(--blue-bright); color: #fff;
}

.catalog-meta {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
  margin-bottom: var(--space-5);
  color: var(--ink-soft); font-size: var(--fs-sm);
}
.meta-chip {
  display: inline-block;
  padding: .15rem .55rem;
  border-radius: var(--r-full);
  background: var(--cyan-soft);
  color: var(--blue-mid);
  font-weight: 600;
}
.meta-reset {
  color: var(--blue-bright); font-weight: 600; font-size: var(--fs-sm);
}
.meta-reset:hover { text-decoration: underline; }

.catalog-empty {
  text-align: center;
  padding: 3.5rem 2rem;
  display: flex; flex-direction: column; align-items: center; gap: 1rem;
}
.empty-ico { font-size: 2.5rem; }
.catalog-empty h3 { color: var(--blue-deep); font-size: var(--fs-xl); }
.catalog-empty p { color: var(--ink-soft); max-width: 420px; }

.product-card-link {
  display: flex; flex-direction: column; height: 100%;
  color: inherit;
}
.product-card h2 {
  font-size: var(--fs-base); font-weight: 700; line-height: 1.4; color: var(--blue-deep);
}

.products-grid.is-list {
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
.products-grid.is-list .product-card-link {
  flex-direction: row;
  align-items: stretch;
}
.products-grid.is-list .product-img-wrap {
  width: 160px; min-width: 160px;
  aspect-ratio: 1;
  border-radius: var(--r-lg) 0 0 var(--r-lg);
}
.products-grid.is-list .product-body {
  justify-content: center;
}
.products-grid.is-list .product-footer {
  justify-content: flex-start;
}

.catalog-cta {
  padding: 2.5rem;
  text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 1.25rem;
}
.catalog-cta h2 { font-size: var(--fs-2xl); font-weight: 800; color: var(--blue-deep); }
.catalog-cta p { color: var(--ink-soft); max-width: 520px; }

@media (max-width: 960px) {
  .catalog-layout { grid-template-columns: 1fr; }
  .catalog-sidebar {
    position: static;
    padding: var(--space-4);
  }
  .cat-nav {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: .5rem;
  }
  .catalog-toolbar { position: static; }
}

@media (max-width: 600px) {
  .products-grid.is-list .product-card-link { flex-direction: column; }
  .products-grid.is-list .product-img-wrap {
    width: 100%; border-radius: var(--r-lg) var(--r-lg) 0 0;
  }
}

/* Works & References */
.works-grid,.refs-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:var(--space-6);
}
.work-card{overflow:hidden;display:flex;flex-direction:column}
.work-media{position:relative;aspect-ratio:16/10;background:linear-gradient(135deg,#eaf2fb,#d7e8f8);overflow:hidden}
.work-media img{width:100%;height:100%;object-fit:cover}
.work-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-size:2.5rem;font-weight:800;color:var(--blue-bright);opacity:.45}
.work-tag{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.92);color:var(--blue-deep);font-size:.72rem;font-weight:700;padding:.3rem .65rem;border-radius:999px;border:1px solid var(--line)}
.work-body{padding:var(--space-6);display:flex;flex-direction:column;gap:.55rem}
.work-body h2{font-size:var(--fs-lg);font-weight:800;color:var(--blue-deep);line-height:1.3}
.work-meta{font-size:var(--fs-sm);color:var(--ink-muted)}
.work-body p{color:var(--ink-soft);font-size:var(--fs-sm);line-height:1.65}
.ref-card{padding:var(--space-8) var(--space-6);display:flex;flex-direction:column;gap:1.25rem}
.ref-quote{font-size:var(--fs-lg);line-height:1.7;color:var(--ink);font-weight:500}
.ref-card footer{color:var(--ink-soft);font-size:var(--fs-sm)}
.ref-card footer strong{color:var(--blue-deep)}
.ref-city{margin-top:.35rem;color:var(--ink-muted);font-size:.8rem}