:root {
  --bg: #050816;
  --bg-elevated: #0b1020;
  --accent: #7b5cff;
  --accent-soft: rgba(123, 92, 255, 0.13);
  --accent-gradient: linear-gradient(135deg, #7b5cff, #ff6bcb);
  --text: #f9fafb;
  --muted: #9ca3af;
  --border-subtle: rgba(148, 163, 184, 0.25);
  --card-bg: rgba(15, 23, 42, 0.75);
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.9);
  --radius-lg: 18px;
  --radius-full: 999px;
}

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "SF Pro Display", "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #1e293b 0, #020617 55%, #000 100%);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: linear-gradient(
      to bottom,
      rgba(15, 23, 42, 0.92),
      rgba(15, 23, 42, 0.74),
      transparent
    );
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

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

.logo img {
  border-radius: 22%;
  object-fit: contain;
}

.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 14px;
  background-image: var(--accent-gradient);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  box-shadow: 0 10px 30px rgba(123, 92, 255, 0.7);
}

.logo-text {
  font-weight: 600;
  letter-spacing: 0.03em;
  font-size: 16px;
}

.nav {
  display: flex;
  gap: 18px;
  font-size: 14px;
}

.nav-link {
  padding: 6px 12px;
  border-radius: 999px;
  color: var(--muted);
  border: 1px solid transparent;
  transition: all 0.18s ease-out;
}

.nav-link:hover {
  color: var(--text);
  background-color: rgba(15, 23, 42, 0.85);
  border-color: rgba(148, 163, 184, 0.45);
}

.nav-link.active {
  background-image: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 14px 35px rgba(123, 92, 255, 0.8);
}

.hero {
  padding: 64px 0 40px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2.4fr);
  gap: 32px;
  align-items: center;
}

.hero-text h1 {
  font-size: clamp(34px, 4vw, 40px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 16px;
}

.accent {
  background-image: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-subtitle {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 15px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.18s ease-out;
}

.btn.primary {
  background-image: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 16px 35px rgba(123, 92, 255, 0.85);
}

.btn.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 20px 40px rgba(123, 92, 255, 0.95);
}

.btn.secondary {
  background-color: rgba(15, 23, 42, 0.95);
  border-color: rgba(148, 163, 184, 0.5);
  color: var(--text);
}

.btn.secondary:hover {
  background-color: rgba(15, 23, 42, 1);
}

.btn.ghost {
  background-color: transparent;
  border-color: rgba(148, 163, 184, 0.5);
  color: var(--muted);
}

.btn.ghost:hover {
  color: var(--text);
  border-color: rgba(148, 163, 184, 0.9);
  background-color: rgba(15, 23, 42, 0.85);
}

.hero-note {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.hero-media {
  display: flex;
  justify-content: flex-end;
}

.phone-mockup {
  width: 260px;
  height: 520px;
  border-radius: 36px;
  padding: 10px;
  background: radial-gradient(circle at 0 0, #38bdf8, #4f46e5 40%, #0f172a);
  box-shadow: 0 28px 60px rgba(15, 23, 42, 0.95);
  position: relative;
}

.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 28px;
  background: radial-gradient(circle at 0 0, #0ea5e9, #6366f1, #111827);
  padding: 18px 16px;
  position: relative;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.gradient-bg::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: conic-gradient(
    from 210deg,
    rgba(56, 189, 248, 0.1),
    rgba(244, 114, 182, 0.2),
    rgba(79, 70, 229, 0.35),
    rgba(56, 189, 248, 0.15)
  );
  opacity: 0.9;
  filter: blur(12px);
}

.phone-overlay {
  position: relative;
  z-index: 1;
  background-color: rgba(15, 23, 42, 0.82);
  border-radius: 20px;
  padding: 16px;
  border: 1px solid rgba(148, 163, 184, 0.55);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.9);
  color: #e5e7eb;
}

.phone-overlay h2 {
  margin: 0 0 10px;
  font-size: 16px;
}

.phone-overlay ul {
  margin: 0;
  padding-left: 18px;
  font-size: 13px;
  display: grid;
  gap: 4px;
}

.section-title {
  font-size: 20px;
  margin: 0 0 20px;
}

.features {
  padding: 18px 0 42px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  background-color: rgba(15, 23, 42, 0.9);
  border-radius: var(--radius-lg);
  padding: 16px 16px 18px;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
}

.feature-card h3 {
  margin: 0 0 8px;
  font-size: 15px;
}

.feature-card p {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.cta {
  padding: 24px 0 46px;
}

.cta-inner {
  border-radius: 22px;
  border: 1px solid var(--border-subtle);
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.15), transparent),
    radial-gradient(circle at bottom right, rgba(168, 85, 247, 0.15), transparent),
    rgba(15, 23, 42, 0.96);
  padding: 20px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 1);
}

.cta-inner h2 {
  margin: 0 0 6px;
  font-size: 18px;
}

.cta-inner p {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.25);
  padding: 16px 0 20px;
  background: radial-gradient(circle at top, #020617, #020617 55%, #000 100%);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: var(--muted);
}

.footer-links {
  display: flex;
  gap: 14px;
}

.footer-links a {
  color: var(--muted);
}

.footer-links a:hover {
  color: var(--text);
}

.page-main {
  padding: 48px 0 40px;
}

.page-header {
  margin-bottom: 20px;
}

.page-title {
  margin: 0 0 6px;
  font-size: 26px;
}

.page-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.content-card {
  background-color: rgba(15, 23, 42, 0.92);
  border-radius: 20px;
  padding: 18px 18px 20px;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
  font-size: 14px;
  color: var(--muted);
}

.content-card h2,
.content-card h3 {
  color: var(--text);
}

.content-card h2 {
  font-size: 18px;
  margin: 0 0 10px;
}

.content-card h3 {
  font-size: 15px;
  margin: 16px 0 6px;
}

.content-card p {
  margin: 6px 0;
}

.content-card ul {
  margin: 6px 0 6px 20px;
  padding: 0;
}

.content-card li {
  margin-bottom: 4px;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 2fr);
  gap: 18px;
}

.contact-card {
  background-color: rgba(15, 23, 42, 0.92);
  border-radius: 20px;
  padding: 18px;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
  font-size: 14px;
  color: var(--muted);
}

.contact-card h2 {
  margin: 0 0 8px;
  font-size: 18px;
  color: var(--text);
}

.contact-card p {
  margin: 6px 0;
}

.contact-meta {
  margin-top: 10px;
  font-size: 13px;
}

.contact-form {
  display: grid;
  gap: 10px;
}

.form-row {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.field label {
  font-size: 13px;
  color: var(--text);
}

.field input,
.field textarea {
  background-color: rgba(15, 23, 42, 0.96);
  border-radius: 10px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  padding: 8px 10px;
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s ease-out, box-shadow 0.15s ease-out,
    background-color 0.15s ease-out;
}

.field input::placeholder,
.field textarea::placeholder {
  color: rgba(148, 163, 184, 0.7);
}

.field input:focus,
.field textarea:focus {
  border-color: #7b5cff;
  box-shadow: 0 0 0 1px rgba(123, 92, 255, 0.5);
  background-color: rgba(15, 23, 42, 0.98);
}

.field textarea {
  resize: vertical;
  min-height: 120px;
}

.form-note {
  font-size: 12px;
  color: var(--muted);
  margin-top: 4px;
}

.submit-row {
  margin-top: 8px;
  display: flex;
  justify-content: flex-end;
}

.catalog-preview {
  padding: 12px 0 40px;
}

.catalog-preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.catalog-preview-subtitle {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.catalog-swiper {
  padding: 0 0 40px;
  margin: 0 -16px;
  padding-left: 16px;
  padding-right: 16px;
}

.catalog-swiper .swiper-slide {
  height: auto;
  display: flex;
  justify-content: center;
}

.catalog-swiper .swiper-pagination {
  bottom: 20px;
}

.catalog-swiper .swiper-pagination-bullet {
  background: rgba(148, 163, 184, 0.5);
  opacity: 1;
}

.catalog-swiper .swiper-pagination-bullet-active {
  background: #e5e7eb;
}

.catalog-swiper .swiper-button-next,
.catalog-swiper .swiper-button-prev {
  color: #e5e7eb;
  background: rgba(15, 23, 42, 0.8);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  backdrop-filter: blur(10px);
}

.catalog-swiper .swiper-button-next:after,
.catalog-swiper .swiper-button-prev:after {
  font-size: 18px;
}

.catalog-swiper .swiper-button-next:hover,
.catalog-swiper .swiper-button-prev:hover {
  background: rgba(15, 23, 42, 0.95);
}

.catalog-preview-card {
  background-color: transparent;
  border-radius: 0;
  overflow: hidden;
  border: none;
  box-shadow: none;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 360px; /* desktop genişliği */
}

.catalog-preview-image-wrap {
  position: relative;
  width: 100%;
  padding-top: 130%; /* dikey oran (yaklaşık 4:5) */
  overflow: hidden;
  flex-shrink: 0;
}

.catalog-preview-image-wrap img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.catalog-preview-body {
  display: none; /* sadece görseller gösterilsin */
}

.catalog-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 10px;
  color: #e5e7eb;
  background-color: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.6);
  margin-bottom: 4px;
}

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

.catalog-category-title {
  margin: 0 0 4px;
  font-size: 20px;
}

.catalog-category-description {
  margin: 0 0 14px;
  font-size: 14px;
  color: var(--muted);
}

.catalog-section-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.catalog-section-card {
  background-color: rgba(15, 23, 42, 0.95);
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.45);
  box-shadow: 0 20px 50px rgba(15, 23, 42, 1);
  display: flex;
  flex-direction: column;
}

.catalog-section-image-wrap {
  position: relative;
  padding-top: 62%;
  overflow: hidden;
}

.catalog-section-image-wrap img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.03);
}

.catalog-section-body {
  padding: 12px 14px 14px;
}

.catalog-section-body h3 {
  margin: 2px 0 4px;
  font-size: 15px;
}

.catalog-section-body p {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-media {
    justify-content: center;
  }

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

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

  .catalog-swiper {
    margin: 0 -12px;
    padding-left: 12px;
    padding-right: 12px;
  }

  .catalog-preview-card {
    max-width: 280px;
  }

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

@media (max-width: 720px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .nav {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .hero {
    padding-top: 40px;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .catalog-preview-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .catalog-swiper {
    margin: 0 -12px;
    padding-left: 12px;
    padding-right: 12px;
  }

  .catalog-swiper .swiper-slide {
    width: 200px;
  }

  .catalog-preview-card {
    min-height: 280px;
  }

  .catalog-preview-image-wrap {
    height: 150px;
  }

  .catalog-swiper .swiper-button-next,
  .catalog-swiper .swiper-button-prev {
    display: none;
  }

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