/* ApSolid — Light preview (program arayüzü ile uyumlu) */
:root {
  --bg-primary: #f4f5f7;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #eef0f3;
  --text-primary: #1a1a1a;
  --text-secondary: #5c5c5c;
  --text-muted: #4a4a4a;
  --accent-blue: #007acc;
  --accent-teal: #00b4a6;
  --accent-dark: #1a1a1a;
  --border-color: #e0e2e6;
  --border-medium: #d0d2d6;
  --highlight-soft: #d6f5f2;
  --success: #2e7d32;
  --navbar-height: 72px;
  --transition: 0.25s ease;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--navbar-height);
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

img {
  max-width: 100%;
  height: auto;
}

ul {
  list-style: none;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.text-accent {
  color: var(--accent-blue);
}

.text-teal {
  color: var(--accent-teal);
}

.section {
  padding: 88px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 52px;
}

.section-header h2 {
  font-size: clamp(1.85rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 640px;
  margin: 0 auto;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-teal);
  background: var(--highlight-soft);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}

/* Preview ribbon */
.preview-ribbon {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 2000;
  background: #fff8e6;
  border-bottom: 1px solid #f0d080;
  color: #7a5c00;
  font-size: 0.82rem;
  text-align: center;
  padding: 8px 16px;
}

.preview-ribbon strong {
  color: #5c4500;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

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

.btn-primary:hover {
  background: #333;
  transform: translateY(-1px);
}

.btn-outline {
  background: #fff;
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
}

.btn-outline:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.btn-blue {
  background: var(--accent-blue);
  color: #fff;
}

.btn-blue:hover {
  filter: brightness(1.05);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
}

.btn-xl {
  padding: 16px 32px;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

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

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

.navbar-logo {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  object-fit: contain;
  background: #fff;
}

.navbar-title {
  font-size: 1.35rem;
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--accent-blue);
  background: var(--bg-card-hover);
}

.btn-nav {
  background: var(--accent-blue) !important;
  color: #fff !important;
  margin-left: 6px;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  flex-shrink: 0;
}

.lang-btn {
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
  transition: var(--transition);
}

.lang-btn:hover {
  color: var(--accent-blue);
}

.lang-btn.active {
  background: #fff;
  color: var(--accent-blue);
  box-shadow: var(--shadow-sm);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
}

/* Hero */
.hero {
  padding: calc(var(--navbar-height) + 56px) 0 72px;
  background: linear-gradient(180deg, #fff 0%, var(--bg-primary) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--highlight-soft);
  border: 1px solid #b8ebe6;
  border-radius: 999px;
  font-size: 0.85rem;
  color: #006b63;
  margin-bottom: 20px;
}

.hero-title {
  font-size: clamp(2.2rem, 4.5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 18px;
}

.hero-subtitle {
  font-size: 1.08rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin-bottom: 28px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.hero-stat {
  min-width: 120px;
}

.hero-stat strong {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-blue);
}

.hero-stat span {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.hero-panel {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.hero-panel-logo {
  border-radius: 4px;
  object-fit: contain;
}

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

.footer-brand-row .navbar-logo {
  width: 32px;
  height: 32px;
}

.hero-panel-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-medium);
}

.hero-panel-body {
  padding: 20px;
}

.mock-module {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  background: #fff;
  transition: var(--transition);
}

.mock-module:hover {
  border-color: var(--accent-teal);
  background: var(--highlight-soft);
}

.mock-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--highlight-soft);
  color: var(--accent-teal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.75rem;
  flex-shrink: 0;
}

.mock-module h4 {
  font-size: 0.92rem;
  margin-bottom: 2px;
}

.mock-module p {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

/* Workflow */
.workflow {
  background: #fff;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.workflow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.workflow-step {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px 20px;
  position: relative;
}

.step-num {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--accent-blue);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.workflow-step h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.workflow-step p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* Module groups */
.modules {
  background: var(--bg-primary);
}

.module-groups {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.module-group-header {
  margin-bottom: 20px;
}

.module-group-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.module-group-header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

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

.feature-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 22px 20px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.feature-card:hover {
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.feature-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-teal);
  margin-bottom: 8px;
}

.feature-card h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.feature-card ul {
  padding-left: 0;
}

.feature-card li {
  font-size: 0.82rem;
  color: var(--text-muted);
  padding: 4px 0 4px 16px;
  position: relative;
}

.feature-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-teal);
}

/* Why */
.why-section {
  background: #fff;
}

.comparison {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.comparison-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 32px 48px;
  text-align: center;
  min-width: 200px;
}

.comparison-card.new {
  border-color: var(--accent-teal);
  background: var(--highlight-soft);
}

.comparison-number {
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
}

.comparison-card.old .comparison-number {
  color: #c62828;
}

.comparison-card.new .comparison-number {
  color: var(--accent-teal);
}

.advantages {
  max-width: 820px;
  margin: 0 auto;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.advantage-item {
  display: flex;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.advantage-item svg {
  flex-shrink: 0;
  stroke: var(--success);
}

/* Pricing, FAQ, Download, Contact — light cards */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 780px;
  margin: 0 auto;
}

.pricing-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.pricing-card-featured {
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-md);
}

.pricing-badge {
  display: inline-block;
  background: var(--accent-blue);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.pricing-price {
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--accent-blue);
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-align: left;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  background: none;
  border: none;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  color: var(--text-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-item.active .faq-answer {
  max-height: 280px;
}

.faq-answer p {
  padding: 0 20px 18px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.download-box {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  box-shadow: var(--shadow-md);
}

.whats-new {
  text-align: left;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 24px 0;
}

.whats-new h3 {
  font-size: 0.95rem;
  margin-bottom: 10px;
  color: var(--accent-blue);
}

.whats-new ul {
  padding-left: 18px;
  list-style: disc;
}

.whats-new li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.sys-req-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 20px;
  text-align: left;
}

.sys-req-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.92rem;
  background: #fff;
}

.contact-card {
  display: flex;
  gap: 14px;
  padding: 18px;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  margin-bottom: 12px;
  transition: var(--transition);
}

.contact-card:hover {
  border-color: var(--accent-blue);
}

.social-block {
  padding: 18px;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
}

.social-block h4 {
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.social-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 14px;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.social-links-footer {
  margin-top: 16px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  background: #fff;
  transition: var(--transition);
}

.social-link:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  background: rgba(0, 122, 204, 0.06);
}

.footer {
  background: #fff;
  border-top: 1px solid var(--border-color);
  padding: 48px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .workflow-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .workflow-steps,
  .features-grid,
  .pricing-grid,
  .contact-grid,
  .advantages-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}