:root {
  --color-bg: #ffffff;
  --color-text: #111827;
  --color-muted: #6b7280;
  --color-border: #e5e7eb;
  --color-accent: #0f766e; /* kurumsal vurgu rengi (örnek) */
  --shadow-soft: 0 10px 25px rgba(15, 23, 42, 0.06);
  --radius-card: 14px;
  --radius-pill: 999px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  background-color: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(229, 231, 235, 0.8);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0;
  transition: opacity 0.2s;
  line-height: 1;
  text-decoration: none;
}

.logo:hover {
  opacity: 0.8;
}

.logo img {
  height: 45px;
  width: auto;
  max-width: 200px;
  display: block;
  object-fit: contain;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
}

/* Logo yüklenemezse gizle */
.logo img[src=""],
.logo img:not([src]) {
  display: none;
}

/* Footer logo - daha küçük */
.site-footer .logo img {
  height: 35px;
  max-width: 180px;
}

.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  border: 2px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  font-size: 0.9rem;
}

.nav a {
  position: relative;
  padding-bottom: 0.2rem;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-accent);
  transition: width 150ms ease-out;
}

.nav a:hover::after {
  width: 100%;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.6rem 1.15rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  background-color: #f9fafb;
  color: var(--color-text);
  transition: background-color 120ms ease-out, box-shadow 120ms ease-out,
    transform 80ms ease-out, border-color 120ms ease-out;
}

.btn:hover {
  background-color: #f3f4f6;
  box-shadow: var(--shadow-soft);
  transform: translateY(-1px);
}

.btn:active {
  box-shadow: none;
  transform: translateY(0);
}

.btn-primary {
  background-color: var(--color-accent);
  color: #ecfeff;
  border-color: rgba(15, 118, 110, 0.4);
}

.btn-primary:hover {
  background-color: #0d6a63;
}

.btn-outline {
  background-color: transparent;
  border-color: var(--color-border);
}

.mobile-toggle {
  display: none;
  border: none;
  background: none;
  padding: 0.4rem;
  border-radius: 999px;
  border: 1px solid rgba(156, 163, 175, 0.5);
}

.mobile-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: #111827;
  position: relative;
}

.mobile-toggle span::before,
.mobile-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: #111827;
}

.mobile-toggle span::before {
  top: -5px;
}

.mobile-toggle span::after {
  top: 5px;
}

.mobile-nav {
  display: none;
  border-top: 1px solid rgba(229, 231, 235, 0.9);
  padding: 0.75rem 0 1rem;
}

.mobile-nav a {
  display: block;
  padding: 0.35rem 0;
  font-size: 0.92rem;
}

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

/* Hero */

.hero {
  padding: 3.5rem 0 2.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.2rem 0.7rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.4);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-muted);
}

.hero-title {
  font-size: clamp(2.1rem, 3vw, 2.6rem);
  letter-spacing: -0.03em;
  margin: 1.2rem 0 0.8rem;
}

.hero-subtitle {
  font-size: 0.98rem;
  color: var(--color-muted);
  max-width: 32rem;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.4rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 1.6rem;
  font-size: 0.8rem;
  color: var(--color-muted);
}

.hero-meta-item span {
  display: block;
}

.hero-meta-label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 500;
}

.hero-meta-value {
  font-weight: 600;
  color: var(--color-text);
}

.hero-media {
  position: relative;
}

.hero-card {
  border-radius: 26px;
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  border: 1px solid rgba(226, 232, 240, 0.9);
  background: radial-gradient(circle at top left, #ecfdf5, #f9fafb 40%);
}

.hero-card-inner {
  padding: 1.25rem 1.25rem 1.1rem;
}

.hero-tagline {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.hero-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.6rem;
}

.hero-line-main {
  font-weight: 600;
}

.hero-line-sub {
  font-size: 0.8rem;
  color: var(--color-muted);
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.9rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  border-radius: var(--radius-pill);
  padding: 0.25rem 0.6rem;
  background-color: rgba(15, 118, 110, 0.06);
  color: #0f766e;
  font-size: 0.7rem;
}

.pill-muted {
  background-color: #f3f4f6;
  color: var(--color-muted);
}

.hero-mockup {
  margin-top: 1rem;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(209, 213, 219, 0.9);
  background: linear-gradient(135deg, #0f172a, #111827);
  height: 210px;
  position: relative;
}

.hero-mockup-line {
  position: absolute;
  inset: 14px;
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.35);
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  padding: 0.9rem;
  gap: 0.7rem;
}

.hero-mockup-left {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: #e5e7eb;
  font-size: 0.72rem;
}

.hero-mockup-right {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.35rem;
}

.hero-mockup-tile {
  border-radius: 10px;
  background: radial-gradient(circle at top left, #22c55e, #0f766e);
  opacity: 0.72;
}

.hero-mockup-tile:nth-child(2) {
  background: radial-gradient(circle at top left, #38bdf8, #0ea5e9);
}

.hero-mockup-tile:nth-child(3) {
  background: radial-gradient(circle at top left, #fbbf24, #f97316);
}

.hero-mockup-tile:nth-child(4) {
  background: radial-gradient(circle at top left, #a855f7, #6366f1);
}

/* Sections */

section.section {
  padding: 3rem 0 2.5rem;
}

.section-header {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.4rem;
}

.section-kicker {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-muted);
}

.section-title {
  font-size: 1.4rem;
  letter-spacing: -0.02em;
}

.section-description {
  font-size: 0.95rem;
  color: var(--color-muted);
  max-width: 40rem;
}

.grid {
  display: grid;
  gap: 1.4rem;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
  background-color: #ffffff;
  padding: 1rem;
  box-shadow: 0 14px 40px rgba(15, 23, 42, 0.02);
  transition: box-shadow 120ms ease-out, transform 80ms ease-out,
    border-color 120ms ease-out;
}

.card:hover {
  box-shadow: var(--shadow-soft);
  transform: translateY(-2px);
  border-color: rgba(15, 118, 110, 0.35);
}

.card-title {
  font-size: 0.98rem;
  margin-bottom: 0.25rem;
}

.card-text {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.6rem;
}

.chip {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(209, 213, 219, 0.9);
  background-color: #f9fafb;
}

/* Layout helpers */

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: flex-start;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.muted {
  color: var(--color-muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  background-color: #ecfdf3;
  color: #15803d;
  font-size: 0.72rem;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background-color: #22c55e;
}

/* Forms */

form {
  display: grid;
  gap: 0.75rem;
}

.form-row {
  display: grid;
  gap: 0.75rem;
}

.form-row-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-label {
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 0.15rem;
}

.form-control {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border-radius: 0.6rem;
  border: 1px solid var(--color-border);
  font-size: 0.85rem;
  outline: none;
  transition: border-color 120ms ease-out, box-shadow 120ms ease-out,
    background-color 120ms ease-out;
}

.form-control:focus {
  border-color: rgba(15, 118, 110, 0.6);
  box-shadow: 0 0 0 1px rgba(34, 197, 94, 0.1);
  background-color: #f9fafb;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--color-muted);
}

.form-status {
  margin-top: 0.5rem;
  font-size: 0.8rem;
}

.form-status.success {
  color: #15803d;
}

.form-status.error {
  color: #b91c1c;
}

/* Products */

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

.product-card {
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background-color: #ffffff;
  box-shadow: 0 16px 45px rgba(15, 23, 42, 0.03);
  display: flex;
  flex-direction: column;
}

.product-media {
  position: relative;
  aspect-ratio: 4 / 3;
  background-color: #f9fafb;
}

.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-card);
  display: block;
}

.product-body {
  padding: 0.9rem 0.95rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.product-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--color-muted);
}

.product-tag {
  border-radius: 999px;
  padding: 0.12rem 0.6rem;
  background-color: #eff6ff;
  color: #1d4ed8;
  font-size: 0.7rem;
}

/* Table-like layout (technical specs) */

.spec-list {
  border-radius: 0.9rem;
  border: 1px solid var(--color-border);
  background-color: #f9fafb;
  padding: 0.8rem 0.9rem;
  font-size: 0.85rem;
}

.spec-item {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.2rem 0;
}

.spec-label {
  color: var(--color-muted);
}

.spec-value {
  font-weight: 500;
}

/* Footer */

.site-footer {
  margin-top: auto;
  border-top: 1px solid rgba(229, 231, 235, 0.9);
  background-color: #f9fafb;
}

.footer-inner {
  padding: 1.8rem 0 1.4rem;
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1.2fr);
  gap: 2rem;
  font-size: 0.88rem;
}

.footer-meta {
  color: var(--color-muted);
  font-size: 0.8rem;
  margin-top: 0.5rem;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.4rem 1.5rem;
}

.footer-bottom {
  border-top: 1px solid rgba(229, 231, 235, 0.9);
  padding: 0.75rem 0;
  font-size: 0.78rem;
  color: var(--color-muted);
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
}

/* Utilities */

.mt-sm {
  margin-top: 0.4rem;
}

.mt-md {
  margin-top: 0.9rem;
}

.mt-lg {
  margin-top: 1.5rem;
}

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

.pill-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

/* Responsive */

@media (max-width: 960px) {
  .hero-grid,
  .two-column,
  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero {
    padding-top: 2.2rem;
  }

  .product-grid,
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .mobile-toggle {
    display: inline-flex;
  }

  .hero-grid {
    gap: 2rem;
  }

  .product-grid,
  .grid-3,
  .grid-4 {
    grid-template-columns: minmax(0, 1fr);
  }

  .form-row-2 {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-inner {
    gap: 1.4rem;
  }

  .header-inner {
    padding-inline: 0.25rem;
  }
}

/* Page Header */
.page-header {
  padding: 3.5rem 0 2rem;
  text-align: center;
}

.page-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin: 0.75rem 0 1rem;
  line-height: 1.2;
}

.page-description {
  font-size: 1.1rem;
  color: var(--color-muted);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Filters Bar */
.filters-bar {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: end;
  padding: 1.5rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
}

.search-box {
  flex: 1;
  min-width: 200px;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.filter-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-muted);
}

/* Product Image Placeholder */
.product-image-placeholder {
  width: 100%;
  aspect-ratio: 1;
  background: var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  font-size: 0.9rem;
  border-radius: var(--radius-card);
}

.product-badge {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: var(--color-accent);
  color: white;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-custom {
  background: #7c3aed;
}

.product-specs {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.spec-item {
  display: flex;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.spec-label {
  font-weight: 500;
  color: var(--color-muted);
}

.spec-value {
  color: var(--color-text);
}

.no-results {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--color-muted);
}

/* FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
  text-align: left;
  background: none;
  border: none;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition: color 0.2s;
}

.faq-question:hover {
  color: var(--color-accent);
}

.faq-icon {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-left: 1rem;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  padding-bottom: 0;
}

.faq-answer p,
.faq-answer ul,
.faq-answer ol {
  padding-bottom: 1.25rem;
  margin: 0;
}

.faq-answer a {
  color: var(--color-accent);
  text-decoration: underline;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.stat-card {
  text-align: center;
  padding: 2rem 1rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.stat-description {
  font-size: 0.9rem;
  color: var(--color-muted);
  margin-top: 0.5rem;
}

/* Process Steps */
.process-steps {
  display: grid;
  gap: 2rem;
  margin-top: 2rem;
}

.process-step {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1.5rem;
  align-items: start;
}

.process-number {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--color-accent);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
}

.process-content {
  padding-top: 0.5rem;
}

/* Card Large */
.card-large {
  padding: 2rem;
}

/* Info Box */
.info-box {
  padding: 1.5rem;
  background: rgba(15, 118, 110, 0.05);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-card);
}

.info-box h3,
.info-box h4 {
  margin-top: 0;
  color: var(--color-accent);
}

/* List Styles */
.list {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0;
}

.list li {
  padding: 0.4rem 0;
  padding-left: 1.5rem;
  position: relative;
}

.list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: bold;
}

.list ol {
  counter-reset: item;
  list-style: none;
}

.list ol li {
  counter-increment: item;
  padding-left: 2rem;
}

.list ol li::before {
  content: counter(item) '.';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: bold;
}

/* Typography */
.h4 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 1rem 0 0.5rem;
}

.muted {
  color: var(--color-muted);
}

/* Nav Active State */
.nav a.active {
  color: var(--color-accent);
  font-weight: 600;
}

/* Section Small */
.section-sm {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
}

/* Responsive Updates */
@media (max-width: 768px) {
  .page-title {
    font-size: 2rem;
  }

  .page-description {
    font-size: 1rem;
  }

  .filters-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .search-box {
    min-width: 100%;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .process-step {
    grid-template-columns: 50px 1fr;
    gap: 1rem;
  }

  .process-number {
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
  }

  .card-large {
    padding: 1.5rem;
  }

  /* Logo responsive */
  .logo img {
    height: 38px;
    max-width: 160px;
  }

  .site-footer .logo img {
    height: 30px;
    max-width: 140px;
  }
}