/* ============================================================
   GreenTarif — Apple-minimal Design System
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg:            #FFFFFF;
  --bg-alt:        #F5F5F7;
  --bg-card:       #FBFBFD;
  --text:          #1D1D1F;
  --text-2:        #6E6E73;
  --text-3:        #86868B;
  --border:        #D2D2D7;
  --border-light:  #E8E8ED;
  --green:         #2E7D32;
  --green-bg:      #F2F8F2;
  --green-dark:    #1B5E20;
  --yellow:        #FDD835;
  --yellow-dark:   #F9A825;
  --red:           #FF3B30;
  --blue:          #0066CC;
  --radius:        12px;
  --radius-sm:     8px;
  --radius-xs:     6px;
  --transition:    0.18s ease;
  --max-width:     1200px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: -apple-system, 'Inter', BlinkMacSystemFont, 'Segoe UI', sans-serif; color: var(--text); background: var(--bg); line-height: 1.6; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }
ul { list-style: none; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ============================================================
   HEADER — Apple style
   ============================================================ */
.header {
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-main {
  padding: 12px 0;
  border-bottom: 1px solid var(--border-light);
}

.header-main .container {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-mark {
  width: 32px;
  height: 32px;
  background: var(--green);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.logo-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.3px;
}

.header-search {
  position: relative;
  max-width: 480px;
  width: 100%;
  justify-self: center;
}

.header-search input {
  width: 100%;
  background: var(--bg-alt);
  border: 1px solid transparent;
  border-radius: 100px;
  padding: 8px 16px 8px 38px;
  font-size: 14px;
  color: var(--text);
  transition: var(--transition);
  outline: none;
}

.header-search input::placeholder { color: var(--text-3); }

.header-search input:focus {
  background: var(--bg);
  border-color: var(--border);
}

.header-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-3);
  font-size: 14px;
  pointer-events: none;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-shrink: 0;
}

.header-phone {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  text-decoration: none;
}

.header-phone:hover { color: var(--green); }

.header-cart {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 22px;
  text-decoration: none;
  color: var(--text);
  transition: var(--transition);
}

.header-cart:hover { color: var(--green); }

.cart-badge {
  position: absolute;
  top: -6px;
  right: -8px;
  background: var(--green);
  color: #fff;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  font-size: 10px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--bg);
}

.cart-badge.hidden { display: none; }

/* Nav row */
.header-nav {
  padding: 0;
}

.header-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.header-nav .container::-webkit-scrollbar { display: none; }

.nav-categories-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px 10px 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  flex-shrink: 0;
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.nav-categories-btn:hover { color: var(--green); }

.nav-categories-btn svg {
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  overflow-x: auto;
  scrollbar-width: none;
}

.nav-links::-webkit-scrollbar { display: none; }

.header-nav a {
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  white-space: nowrap;
  transition: var(--transition);
  border-bottom: 2px solid transparent;
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.header-nav a:hover { color: var(--text); }
.header-nav a.active { color: var(--text); border-bottom-color: var(--green); }

.burger {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  color: var(--text);
  padding: 4px;
}

/* Mobile nav drawer */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 2000;
  padding: 24px;
  overflow-y: auto;
}

.mobile-nav.open { display: block; }

.mobile-nav-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--bg-alt);
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.mobile-nav a {
  display: block;
  padding: 14px 0;
  font-size: 17px;
  font-weight: 500;
  border-bottom: 1px solid var(--border-light);
  color: var(--text);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding: 80px 0 64px;
  background: var(--bg);
  border-bottom: 1px solid var(--border-light);
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--green);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1px;
  color: var(--text);
  margin-bottom: 16px;
}

.hero p {
  font-size: 18px;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 32px;
  max-width: 480px;
}

.hero-badges {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}

.hero-badge {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-badge-icon {
  font-size: 20px;
  flex-shrink: 0;
}

.hero-badge-val {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.hero-badge-label {
  font-size: 12px;
  color: var(--text-3);
  line-height: 1.3;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-visual {
  background: var(--bg-alt);
  border-radius: 20px;
  padding: 36px 40px;
  overflow: hidden;
  position: relative;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 980px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--green);
  color: #fff;
}
.btn-primary:hover { background: var(--green-dark); }

.btn-secondary {
  background: var(--bg-alt);
  color: var(--text);
}
.btn-secondary:hover { background: var(--border-light); }

.btn-outline {
  background: transparent;
  color: var(--green);
  border: 1.5px solid var(--green);
}
.btn-outline:hover { background: var(--green-bg); }

.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
  border-radius: 980px;
}

.btn-full { width: 100%; justify-content: center; }

/* ============================================================
   SECTIONS
   ============================================================ */
section { padding: 72px 0; }
section.alt { background: var(--bg-alt); }
section.tight { padding: 48px 0; }

.section-label {
  font-size: 22px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 8px;
}

.section-title {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text);
  margin-bottom: 8px;
}

.section-sub {
  font-size: 16px;
  color: var(--text-2);
  margin-bottom: 40px;
  max-width: 600px;
}

/* ============================================================
   SOLAR DAYS WIDGET
   ============================================================ */
.solar-widget {
  background: var(--bg-alt);
  border-radius: 20px;
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.solar-stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
}

.solar-stat {
  text-align: center;
}

.solar-stat-value {
  font-size: 36px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -1px;
  line-height: 1;
}

.solar-stat-value span {
  font-size: 18px;
  font-weight: 500;
  color: var(--text-2);
}

.solar-stat-label {
  font-size: 12px;
  color: var(--text-3);
  margin-top: 4px;
}

.solar-bar-chart {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 80px;
}

.solar-bar-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  height: 100%;
  justify-content: flex-end;
}

.solar-bar {
  width: 100%;
  background: var(--border-light);
  border-radius: 3px 3px 0 0;
  transition: background 0.3s;
}

.solar-bar.current { background: var(--yellow); }
.solar-bar.past { background: var(--green); opacity: 0.6; }

.solar-bar-label {
  font-size: 9px;
  color: var(--text-3);
  font-weight: 500;
}

.solar-today {
  grid-column: 1 / -1;
  border-top: 1px solid var(--border-light);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.solar-today-item { text-align: center; }

.solar-today-val {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.solar-today-label {
  font-size: 11px;
  color: var(--text-3);
  margin-top: 2px;
}

.solar-sun {
  font-size: 56px;
  line-height: 1;
  animation: sunSpin 20s linear infinite;
}

@keyframes sunSpin {
  from { filter: brightness(1); }
  50%  { filter: brightness(1.2); }
  to   { filter: brightness(1); }
}

/* ============================================================
   CATEGORIES
   ============================================================ */
.categories-strip {
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 0;
  background: var(--bg);
}

.categories-strip .container {
  display: flex;
  justify-content: center;
  overflow-x: auto;
  scrollbar-width: none;
  gap: 0;
}

.categories-strip .container::-webkit-scrollbar { display: none; }

.cat-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 36px 48px;
  border-right: 1px solid var(--border-light);
  text-decoration: none;
  color: var(--text-2);
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  transition: var(--transition);
  flex-shrink: 0;
}

.cat-chip:first-child { border-left: none; }
.cat-chip:hover { background: var(--bg-alt); color: var(--green); }
.cat-chip.active { color: var(--green); background: var(--green-bg); }

.cat-chip-icon { font-size: 40px; }

/* ============================================================
   EQUIPMENT SELECTOR
   ============================================================ */
.selector-section {
  background: var(--bg);
}

.selector-card {
  max-width: 840px;
  margin: 0 auto;
  padding: 0;
}

.selector-card h2 {
  display: inline;
  font-size: 22px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--green);
  letter-spacing: 0.3px;
  margin-bottom: 0;
}

.selector-card > p {
  color: var(--text-2);
  font-size: 15px;
  margin-bottom: 32px;
}

.selector-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 24px;
  margin-bottom: 28px;
}

.range-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.range-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.range-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.range-row input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.range-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  background: var(--green);
  border-radius: 50%;
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 1px var(--green);
}

.range-val {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  min-width: 80px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.selector-result {
  display: block;
  border-top: 1px solid var(--border-light);
  padding-top: 28px;
  margin-top: 20px;
}

.selector-result.visible { display: block; }

.selector-result-grid {
  display: none;
}

.selector-result-item {
  background: var(--bg);
  padding: 16px;
  text-align: center;
}

.selector-result-val {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
}

.selector-result-label {
  font-size: 11px;
  color: var(--text-3);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.selector-equipment {
  display: none;
}

.equip-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg-alt);
  border-radius: var(--radius-sm);
  font-size: 14px;
}

.equip-name { color: var(--text-2); }
.equip-val { font-weight: 700; color: var(--text); }

.equip-note {
  font-size: 13px;
  color: var(--text-2);
  background: var(--bg-alt);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  border-left: 3px solid var(--green);
}

.selector-lead-block {
  border-top: 1px solid var(--border-light);
  padding-top: 20px;
  margin-top: 4px;
}

.selector-lead-hint {
  font-size: 14px;
  color: var(--text-2);
  margin-bottom: 12px;
}

.selector-lead-form {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: flex-end;
}

.selector-lead-form .form-group {
  flex: 1;
  min-width: 140px;
  margin-bottom: 0;
}

/* ============================================================
   PRODUCT CARDS
   ============================================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
}

.product-card {
  background: var(--bg);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
}

.product-card:hover { background: var(--bg-alt); }

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--green);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 100px;
  z-index: 1;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.product-badge.sale { background: var(--red); }

.product-img-wrap {
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--bg-alt);
}

.product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.product-card:hover .product-img { transform: scale(1.03); }

.product-info {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.product-brand {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.product-name {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text);
  text-decoration: none;
}

.product-name:hover { color: var(--green); }

.product-power {
  font-size: 12px;
  color: var(--text-2);
  font-weight: 500;
}

.product-price-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-top: auto;
  padding-top: 8px;
}

.product-price {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.product-old-price {
  font-size: 13px;
  color: var(--text-3);
  text-decoration: line-through;
}

.price-on-request {
  color: var(--green) !important;
  font-style: italic;
}

.btn-request {
  background: var(--green) !important;
  color: #fff !important;
  border: none !important;
}

.btn-request:hover {
  background: var(--green-dark) !important;
}

.product-stock {
  font-size: 11px;
  color: var(--green);
  font-weight: 500;
}

.product-stock.low { color: var(--yellow-dark); }
.product-stock.out { color: var(--red); }

.product-actions {
  padding: 0 16px 16px;
  display: flex;
  gap: 6px;
}

.btn-cart {
  flex: 1;
  background: var(--bg-alt);
  color: var(--text);
  border: none;
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.btn-cart:hover { background: var(--green); color: #fff; }

.btn-quick {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-2);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-quick:hover { border-color: var(--green); color: var(--green); }

/* ============================================================
   WHY SECTION — stat grid
   ============================================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
}

.stat-card {
  background: var(--bg);
  padding: 32px 24px;
  text-align: center;
}

.stat-value {
  font-size: 40px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -1px;
  line-height: 1;
}

.stat-value small { font-size: 20px; font-weight: 500; }
.stat-label { font-size: 13px; color: var(--text-3); margin-top: 6px; }

/* Feature grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
}

.feature-card {
  background: var(--bg);
  padding: 32px 28px;
}

.feature-icon {
  font-size: 28px;
  margin-bottom: 14px;
}

.feature-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.feature-text {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
}

/* ============================================================
   PROJECTS
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
}

.project-card {
  position: relative;
  aspect-ratio: 4/3;
  background: var(--bg-alt);
  overflow: hidden;
}

.project-img { width: 100%; height: 100%; object-fit: cover; }

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, transparent 55%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
  color: #fff;
}

.project-city { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; opacity: 0.7; margin-bottom: 3px; }
.project-name { font-size: 15px; font-weight: 700; margin-bottom: 3px; }
.project-power { font-size: 12px; opacity: 0.75; }

/* ============================================================
   REVIEWS
   ============================================================ */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
}

.review-card {
  background: var(--bg);
  padding: 28px;
}

.review-stars { color: var(--yellow-dark); font-size: 14px; margin-bottom: 12px; }

.review-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-2);
  margin-bottom: 20px;
  font-style: italic;
}

.review-author { display: flex; align-items: center; gap: 10px; }

.review-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.review-name { font-size: 13px; font-weight: 700; }
.review-city { font-size: 11px; color: var(--text-3); }

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: var(--text);
  color: rgba(255,255,255,0.7);
  padding: 48px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-min {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 32px;
  padding: 40px 0 24px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  text-decoration: none;
}

.footer-logo-mark {
  width: 28px;
  height: 28px;
  background: rgba(255,255,255,0.1);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.footer-logo-name { font-size: 15px; font-weight: 700; color: #fff; }

.footer-desc { font-size: 13px; line-height: 1.7; margin-bottom: 20px; }

.footer-social { display: flex; gap: 8px; }

.social-link {
  width: 32px;
  height: 32px;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: var(--transition);
  text-decoration: none;
}

.social-link:hover { background: rgba(255,255,255,0.15); }

.footer-col h4 {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #fff;
  margin-bottom: 14px;
}

.footer-col ul { display: flex; flex-direction: column; gap: 8px; }

.footer-col ul li a {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}

.footer-col ul li a:hover { color: #fff; }

.footer-contact { font-size: 13px; margin-bottom: 8px; display: flex; align-items: flex-start; gap: 6px; }
.footer-contact a { color: rgba(255,255,255,0.8); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  flex-wrap: wrap;
  gap: 8px;
}

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9000;
  padding: 16px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  backdrop-filter: blur(4px);
}

.modal-overlay.active { opacity: 1; pointer-events: all; }

.modal {
  background: var(--bg);
  border-radius: 20px;
  padding: 36px;
  max-width: 440px;
  width: 100%;
  position: relative;
  transform: translateY(16px) scale(0.98);
  transition: transform 0.2s;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-overlay.active .modal { transform: translateY(0) scale(1); }

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--bg-alt);
  border: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-2);
  transition: var(--transition);
}

.modal-close:hover { background: var(--border); }

.modal h3 { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.modal > p { font-size: 14px; color: var(--text-2); margin-bottom: 20px; }

.modal-success { text-align: center; padding: 16px 0; }
.modal-success .success-icon { font-size: 56px; margin-bottom: 12px; }
.modal-success h3 { color: var(--green); }

/* ============================================================
   FORMS
   ============================================================ */
.form-group { display: flex; flex-direction: column; gap: 5px; margin-bottom: 14px; }

.form-group label { font-size: 13px; font-weight: 600; color: var(--text-2); }

.form-group input,
.form-group select,
.form-group textarea {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 15px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--green);
}

.btn-submit {
  width: 100%;
  background: var(--green);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 13px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}

.btn-submit:hover { background: var(--green-dark); }

/* ============================================================
   BREADCRUMBS
   ============================================================ */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-3);
  padding: 16px 0;
  flex-wrap: wrap;
}

.breadcrumbs a { color: var(--text-3); text-decoration: none; transition: var(--transition); }
.breadcrumbs a:hover { color: var(--text); }
.breadcrumbs .sep { opacity: 0.4; }
.breadcrumbs .current { color: var(--text-2); }

/* ============================================================
   CATALOG PAGE
   ============================================================ */
.catalog-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 32px;
  align-items: start;
  padding-bottom: 80px;
}

.catalog-sidebar {
  position: sticky;
  top: 80px;
}

.sidebar-section { margin-bottom: 28px; }

.sidebar-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-3);
  margin-bottom: 10px;
}

.filter-list { display: flex; flex-direction: column; gap: 2px; }

.filter-list li a {
  display: flex;
  justify-content: space-between;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text-2);
  transition: var(--transition);
}

.filter-list li a:hover { background: var(--bg-alt); color: var(--text); }
.filter-list li a.active { background: var(--green-bg); color: var(--green); font-weight: 600; }

.filter-count { font-size: 11px; color: var(--text-3); }
.filter-list li a.active .filter-count { color: var(--green); }

.price-range { display: flex; gap: 8px; align-items: center; }
.price-range input { flex: 1; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 7px 10px; font-size: 13px; outline: none; }
.price-range input:focus { border-color: var(--green); }

.catalog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.catalog-count { font-size: 13px; color: var(--text-3); }

.sort-select {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 7px 10px;
  font-size: 13px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  outline: none;
}

/* ============================================================
   PRODUCT PAGE
   ============================================================ */
.product-layout {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 48px;
  align-items: start;
  padding: 32px 0 80px;
}

.product-gallery { display: flex; flex-direction: column; gap: 10px; }

.gallery-main {
  aspect-ratio: 4/3;
  background: var(--bg-alt);
  border-radius: var(--radius);
  overflow: hidden;
}

.gallery-main img { width: 100%; height: 100%; object-fit: cover; }

.gallery-thumbs { display: flex; gap: 8px; overflow-x: auto; }

.gallery-thumb {
  width: 72px;
  height: 54px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  flex-shrink: 0;
  background: var(--bg-alt);
  transition: var(--transition);
}

.gallery-thumb:hover,
.gallery-thumb.active { border-color: var(--green); }
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }

.product-detail-info { position: sticky; top: 80px; }

.product-article { font-size: 11px; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.5px; font-weight: 600; margin-bottom: 8px; }

.product-detail-name { font-size: 26px; font-weight: 700; letter-spacing: -0.5px; line-height: 1.2; margin-bottom: 16px; }

.product-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }

.stock-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  background: var(--green-bg);
  color: var(--green);
  border: 1px solid rgba(46,125,50,0.2);
}

.stock-badge::before { content: '●'; font-size: 7px; }

.product-price-block {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 24px;
}

.product-price-big { font-size: 32px; font-weight: 700; color: var(--text); }
.product-old-price-big { font-size: 18px; color: var(--text-3); text-decoration: line-through; }

.product-discount {
  background: var(--red);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 100px;
}

.product-buy-actions { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }

.qty-row { display: flex; gap: 10px; align-items: center; }

.qty-input {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.qty-btn { background: none; border: none; width: 36px; height: 40px; font-size: 18px; font-weight: 600; color: var(--text-2); cursor: pointer; transition: var(--transition); }
.qty-btn:hover { background: var(--bg-alt); color: var(--text); }

.qty-val { width: 44px; text-align: center; font-size: 15px; font-weight: 700; border: none; outline: none; }

.btn-cart-big {
  flex: 1;
  background: var(--green);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 12px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-cart-big:hover { background: var(--green-dark); }

.btn-one-click {
  width: 100%;
  background: var(--bg-alt);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 11px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-one-click:hover { border-color: var(--green); color: var(--green); }

.product-guarantees {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px;
  background: var(--bg-alt);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}

.guarantee-item { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-2); }
.guarantee-item span:first-child { font-size: 15px; }

.specs-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.specs-table tr { border-bottom: 1px solid var(--border-light); }
.specs-table tr:last-child { border-bottom: none; }
.specs-table td { padding: 9px 0; vertical-align: top; }
.specs-table td:first-child { color: var(--text-3); width: 45%; padding-right: 16px; }
.specs-table td:last-child { font-weight: 600; color: var(--text); }

.product-specs-block,
.product-desc-block {
  margin-top: 24px;
  border-top: 1px solid var(--border-light);
  padding-top: 20px;
}

.specs-heading {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--text-2);
  margin-bottom: 14px;
}

/* ============================================================
   TABS
   ============================================================ */
.tabs { display: flex; border-bottom: 1px solid var(--border-light); margin-bottom: 20px; }

.tab {
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  background: none;
  color: var(--text-3);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: var(--transition);
}

.tab.active { color: var(--text); border-bottom-color: var(--green); }

/* ============================================================
   CART
   ============================================================ */
.cart-layout { display: grid; grid-template-columns: 1fr 320px; gap: 28px; align-items: start; padding-bottom: 80px; }

.cart-items { border: 1px solid var(--border-light); border-radius: var(--radius); overflow: hidden; }

.cart-item {
  display: grid;
  grid-template-columns: 88px 1fr auto;
  gap: 16px;
  padding: 18px;
  border-bottom: 1px solid var(--border-light);
  align-items: center;
}

.cart-item:last-child { border-bottom: none; }
.cart-item-img { width: 88px; height: 70px; object-fit: cover; border-radius: var(--radius-sm); background: var(--bg-alt); }
.cart-item-name { font-size: 14px; font-weight: 600; color: var(--text); text-decoration: none; margin-bottom: 3px; display: block; }
.cart-item-name:hover { color: var(--green); }
.cart-item-article { font-size: 11px; color: var(--text-3); margin-bottom: 8px; }
.cart-item-price { font-size: 17px; font-weight: 700; color: var(--text); text-align: right; }
.cart-item-remove { background: none; border: none; color: var(--text-3); font-size: 18px; cursor: pointer; transition: var(--transition); padding: 4px; display: block; }
.cart-item-remove:hover { color: var(--red); }

.cart-summary { border: 1px solid var(--border-light); border-radius: var(--radius); padding: 24px; position: sticky; top: 80px; }
.cart-summary h3 { font-size: 17px; font-weight: 700; margin-bottom: 20px; }

.summary-row { display: flex; justify-content: space-between; font-size: 14px; margin-bottom: 10px; gap: 8px; }
.summary-row.total { font-size: 18px; font-weight: 700; padding-top: 14px; margin-top: 4px; border-top: 1px solid var(--border-light); }

.empty-cart { text-align: center; padding: 80px 20px; }
.empty-icon { font-size: 72px; margin-bottom: 20px; }
.empty-cart h2 { font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.empty-cart p { color: var(--text-2); margin-bottom: 24px; }

/* ============================================================
   CHECKOUT
   ============================================================ */
.checkout-layout { display: grid; grid-template-columns: 1fr 360px; gap: 28px; align-items: start; padding-bottom: 80px; }

.checkout-card { border: 1px solid var(--border-light); border-radius: var(--radius); padding: 24px; margin-bottom: 16px; }
.checkout-card h3 { font-size: 15px; font-weight: 700; margin-bottom: 18px; color: var(--text); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.delivery-options { display: flex; flex-direction: column; gap: 6px; }

.delivery-option {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 13px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.delivery-option:has(input:checked) { border-color: var(--green); background: var(--green-bg); }
.delivery-option input[type="radio"] { width: 16px; height: 16px; accent-color: var(--green); flex-shrink: 0; margin-top: 2px; }
.delivery-option-name { font-weight: 600; font-size: 13px; margin-bottom: 1px; }
.delivery-option-desc { font-size: 11px; color: var(--text-3); }
.delivery-option-price { font-weight: 700; font-size: 13px; color: var(--green); white-space: nowrap; margin-left: auto; }

.payment-options { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }

.payment-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  transition: var(--transition);
}

.payment-option:has(input:checked) { border-color: var(--green); background: var(--green-bg); font-weight: 600; }
.payment-option input { accent-color: var(--green); }

/* ============================================================
   ADMIN
   ============================================================ */
.admin-layout { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }

.admin-sidebar { background: var(--text); color: rgba(255,255,255,0.75); padding: 24px 0; }
.admin-logo { padding: 0 20px 20px; border-bottom: 1px solid rgba(255,255,255,0.08); margin-bottom: 12px; font-weight: 700; font-size: 16px; color: #fff; }

.admin-nav { display: flex; flex-direction: column; }
.admin-nav a { display: flex; align-items: center; gap: 8px; padding: 11px 20px; color: rgba(255,255,255,0.7); font-size: 13px; font-weight: 500; transition: var(--transition); }
.admin-nav a:hover, .admin-nav a.active { background: rgba(255,255,255,0.08); color: #fff; }

.admin-content { padding: 28px; background: var(--bg-alt); }
.admin-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.admin-header h2 { font-size: 20px; font-weight: 700; color: var(--text); }

.admin-table { width: 100%; background: var(--bg); border-radius: var(--radius); border: 1px solid var(--border-light); overflow: hidden; border-collapse: collapse; }
.admin-table th { background: var(--bg-alt); padding: 11px 14px; text-align: left; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-3); border-bottom: 1px solid var(--border-light); }
.admin-table td { padding: 13px 14px; border-bottom: 1px solid var(--border-light); font-size: 13px; }
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: var(--bg-alt); }

.status-badge { display: inline-flex; align-items: center; padding: 2px 8px; border-radius: 100px; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.3px; }
.status-badge.new { background: #E3F2FD; color: #0066CC; }
.status-badge.processing { background: #FFF3E0; color: #E65100; }
.status-badge.delivered { background: var(--green-bg); color: var(--green); }
.status-badge.cancelled { background: #FFEBEE; color: var(--red); }

.toggle { width: 36px; height: 20px; background: var(--border); border-radius: 100px; position: relative; cursor: pointer; transition: var(--transition); }
.toggle.on { background: var(--green); }
.toggle::after { content: ''; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; background: #fff; border-radius: 50%; transition: var(--transition); }
.toggle.on::after { transform: translateX(16px); }

.admin-login { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--bg-alt); }
.admin-login-card { background: var(--bg); border-radius: 20px; padding: 40px; max-width: 360px; width: 100%; border: 1px solid var(--border-light); text-align: center; }
.admin-login-card h2 { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.admin-login-card p { color: var(--text-2); font-size: 14px; margin-bottom: 24px; }

/* ============================================================
   UTILITIES
   ============================================================ */
.btn-green { background: var(--green); color: #fff; border: none; border-radius: var(--radius-sm); padding: 8px 16px; font-size: 13px; font-weight: 600; cursor: pointer; transition: var(--transition); display: inline-flex; align-items: center; gap: 6px; }
.btn-green:hover { background: var(--green-dark); }

.btn-danger { background: #FFEBEE; color: var(--red); border: 1px solid #FFCDD2; border-radius: var(--radius-sm); padding: 6px 10px; font-size: 12px; font-weight: 600; cursor: pointer; transition: var(--transition); }
.btn-danger:hover { background: #FFCDD2; }

.hidden { display: none !important; }
.text-center { text-align: center; }
.text-muted { color: var(--text-2); }

.notification {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--text);
  color: #fff;
  border-radius: var(--radius);
  padding: 12px 18px;
  font-size: 14px;
  font-weight: 600;
  z-index: 9999;
  transform: translateY(80px);
  opacity: 0;
  transition: all 0.3s;
  max-width: 300px;
}

.notification.show { transform: translateY(0); opacity: 1; }

/* ============================================================
   CALCULATOR PAGE
   ============================================================ */
.calc-hero { background: var(--bg-alt); border-bottom: 1px solid var(--border-light); padding: 48px 0; }
.calc-hero h1 { font-size: 36px; font-weight: 700; margin-bottom: 8px; letter-spacing: -0.5px; }
.calc-hero p { font-size: 16px; color: var(--text-2); }

.calc-full-card { background: var(--bg); border: 1px solid var(--border-light); border-radius: 20px; padding: 40px; max-width: 800px; margin: 40px auto; }

.calc-result-full { display: none; margin-top: 28px; border-top: 1px solid var(--border-light); padding-top: 28px; }
.calc-result-full.visible { display: block; }

.calc-result-cards { display: grid; grid-template-columns: repeat(2,1fr); gap: 1px; background: var(--border-light); border: 1px solid var(--border-light); border-radius: var(--radius); overflow: hidden; margin-bottom: 20px; }

.result-card { background: var(--bg); padding: 20px; text-align: center; }
.result-card-icon { font-size: 24px; margin-bottom: 6px; }
.result-card-value { font-size: 24px; font-weight: 700; color: var(--text); }
.result-card-label { font-size: 11px; color: var(--text-3); margin-top: 3px; text-transform: uppercase; letter-spacing: 0.3px; }

/* ============================================================
   CONTACTS & ABOUT
   ============================================================ */
.page-hero { background: var(--bg-alt); border-bottom: 1px solid var(--border-light); padding: 56px 0; }
.page-hero h1 { font-size: 40px; font-weight: 700; letter-spacing: -0.5px; margin-bottom: 8px; }
.page-hero p { font-size: 17px; color: var(--text-2); }

.contacts-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; padding: 48px 0; }
.map-placeholder { height: 400px; background: var(--bg-alt); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; font-size: 60px; border: 1px solid var(--border-light); }

.contact-info-list { display: flex; flex-direction: column; gap: 20px; }
.contact-info-item { display: flex; gap: 14px; align-items: flex-start; }
.contact-info-icon { width: 44px; height: 44px; background: var(--bg-alt); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; }
.contact-info-text h4 { font-weight: 700; font-size: 14px; margin-bottom: 3px; }
.contact-info-text p { font-size: 14px; color: var(--text-2); }
.contact-info-text a { color: var(--green); font-weight: 600; }

.team-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 1px; background: var(--border-light); border: 1px solid var(--border-light); border-radius: var(--radius); overflow: hidden; }
.team-card { background: var(--bg); padding: 24px 16px; text-align: center; }
.team-avatar { width: 72px; height: 72px; border-radius: 50%; background: var(--bg-alt); display: flex; align-items: center; justify-content: center; font-size: 32px; margin: 0 auto 12px; }
.team-name { font-weight: 700; font-size: 14px; margin-bottom: 3px; }
.team-role { font-size: 12px; color: var(--text-3); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .products-grid { grid-template-columns: repeat(3,1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero .container { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .solar-widget { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2,1fr); }
  .team-grid { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 768px) {
  .header-main .container { grid-template-columns: auto 1fr auto; }
  .header-search { display: none; }
  .burger { display: block; }
  .header-phone { display: none; }
  .products-grid { grid-template-columns: repeat(2,1fr); }
  .categories-strip .container { gap: 0; }
  .cat-chip { padding: 16px 18px; }
  .selector-inputs { grid-template-columns: 1fr; }
  .selector-result-grid { grid-template-columns: repeat(2,1fr); }
  .features-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: repeat(2,1fr); }
  .reviews-grid { grid-template-columns: 1fr; }
  .cart-layout { grid-template-columns: 1fr; }
  .checkout-layout { grid-template-columns: 1fr; }
  .product-layout { grid-template-columns: 1fr; }
  .catalog-layout { grid-template-columns: 1fr; }
  .catalog-sidebar { position: static; }
  .contacts-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .payment-options { grid-template-columns: 1fr; }
  .calc-result-cards { grid-template-columns: 1fr; }
  section { padding: 48px 0; }
  .hero { padding: 48px 0; }
  .header-nav a { padding: 10px 10px; font-size: 12px; }
}

@media (max-width: 480px) {
  .products-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .cart-item { grid-template-columns: 72px 1fr auto; }
  .admin-layout { grid-template-columns: 1fr; }
  .admin-sidebar { display: none; }
}