/* SociaRatio — Ana stil
   Mobile-first, sade, analitik SaaS görünümü */

:root {
  --bg: #f4f7f6;
  --bg-elevated: #ffffff;
  --ink: #14201c;
  --ink-muted: #5a6b64;
  --line: #d7e0dc;
  --brand: #0f766e;
  --brand-dark: #0b5a54;
  --brand-soft: #ecfdf5;
  --accent: #0ea5a0;
  --danger: #b42318;
  --info: #175cd3;
  --radius: 12px;
  --shadow: 0 12px 40px rgba(20, 32, 28, 0.08);
  --font: "DM Sans", system-ui, sans-serif;
  --display: "Instrument Serif", Georgia, serif;
  --container: 1080px;
  --header-h: 68px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(15, 118, 110, 0.10), transparent 60%),
    radial-gradient(900px 420px at 100% 0%, rgba(14, 165, 160, 0.08), transparent 55%),
    linear-gradient(180deg, #eef5f2 0%, var(--bg) 280px);
  line-height: 1.55;
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  color: var(--brand-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--brand);
}

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--ink);
  color: #fff;
  padding: 0.6rem 0.9rem;
  z-index: 100;
  border-radius: 8px;
}

.skip-link:focus {
  top: 1rem;
}

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(244, 247, 246, 0.86);
  border-bottom: 1px solid rgba(215, 224, 220, 0.8);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-text {
  font-size: 1.15rem;
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-elevated);
  cursor: pointer;
}

.nav-toggle span:not(.sr-only) {
  display: block;
  width: 16px;
  height: 2px;
  margin-inline: auto;
  background: var(--ink);
}

.site-nav {
  display: none;
  position: absolute;
  left: 0;
  right: 0;
  top: var(--header-h);
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--line);
  padding: 1rem;
  flex-direction: column;
  gap: 0.75rem;
  box-shadow: var(--shadow);
}

.site-nav.is-open {
  display: flex;
}

.site-nav a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 500;
  padding: 0.45rem 0.2rem;
}

.nav-link-muted {
  color: var(--ink-muted) !important;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 1px solid transparent;
  border-radius: 10px;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn-sm {
  padding: 0.45rem 0.85rem;
  font-size: 0.92rem;
}

.btn-lg {
  padding: 0.85rem 1.25rem;
  font-size: 1rem;
}

.btn-primary {
  background: var(--brand);
  color: #fff !important;
  border-color: var(--brand);
}

.btn-primary:hover {
  background: var(--brand-dark);
  border-color: var(--brand-dark);
}

.btn-ghost {
  background: transparent;
  color: var(--ink) !important;
  border-color: var(--line);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.7);
}

/* Hero */
.hero {
  position: relative;
  padding: 3.5rem 0 4rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.07), transparent 45%),
    repeating-linear-gradient(
      -12deg,
      transparent,
      transparent 18px,
      rgba(20, 32, 28, 0.02) 18px,
      rgba(20, 32, 28, 0.02) 19px
    );
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 760px;
}

.hero-brand {
  margin: 0 0 0.75rem;
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-family: var(--display);
  color: var(--brand-dark);
  letter-spacing: -0.02em;
}

.hero h1 {
  margin: 0;
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2rem, 6vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.hero-lead {
  margin: 1.1rem 0 0;
  color: var(--ink-muted);
  font-size: 1.05rem;
  max-width: 36rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

/* Sections */
.section {
  padding: 3.5rem 0;
}

.section-head {
  margin-bottom: 2rem;
  max-width: 36rem;
}

.section-head h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  font-weight: 400;
  letter-spacing: -0.02em;
}

.section-head p {
  margin: 0.5rem 0 0;
  color: var(--ink-muted);
}

.platform-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.platform-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem 1.1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.platform-icon {
  color: var(--brand);
  flex-shrink: 0;
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.steps li {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.1rem 1.2rem;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.step-num {
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand-dark);
  display: grid;
  place-items: center;
  font-weight: 700;
  flex-shrink: 0;
}

.steps h3 {
  margin: 0.1rem 0 0.25rem;
  font-size: 1.05rem;
}

.steps p {
  margin: 0;
  color: var(--ink-muted);
}

.feature-list {
  display: grid;
  gap: 1rem;
}

.feature-list article {
  padding: 1.25rem 0;
  border-top: 1px solid var(--line);
}

.feature-list article:last-child {
  border-bottom: 1px solid var(--line);
}

.feature-list h3 {
  margin: 0 0 0.35rem;
  font-size: 1.08rem;
}

.feature-list p {
  margin: 0;
  color: var(--ink-muted);
}

.cta-band {
  padding-bottom: 4.5rem;
}

.cta-band-inner {
  padding: 2rem 1.4rem;
  border-radius: 18px;
  background:
    linear-gradient(135deg, #0f766e, #0b5a54);
  color: #ecfdf5;
  text-align: center;
}

.cta-band-inner h2 {
  margin: 0;
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(1.6rem, 3vw, 2rem);
}

.cta-band-inner p {
  margin: 0.55rem 0 1.25rem;
  opacity: 0.9;
}

.cta-band-inner .btn-primary {
  background: #fff;
  color: var(--brand-dark) !important;
  border-color: #fff;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0 2.5rem;
  background: rgba(255, 255, 255, 0.45);
}

.footer-inner {
  display: grid;
  gap: 1.25rem;
}

.footer-brand p,
.footer-meta p {
  margin: 0.35rem 0 0;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.footer-meta a {
  text-decoration: none;
}

/* Analiz sayfası */
.analiz-main {
  padding: 2.5rem 0 4rem;
}

.analiz-wrap {
  max-width: 760px;
}

.eyebrow {
  margin: 0;
  color: var(--brand);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.analiz-head h1 {
  margin: 0.35rem 0;
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(1.9rem, 4vw, 2.5rem);
}

.analiz-head p {
  margin: 0;
  color: var(--ink-muted);
}

.analiz-form {
  margin-top: 1.75rem;
  display: grid;
  gap: 1.25rem;
}

.form-block {
  margin: 0;
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}

.form-block legend,
.form-block h2 {
  padding: 0;
  font-weight: 700;
  font-size: 1rem;
}

.form-block h2 {
  margin: 0 0 0.35rem;
}

.field-hint {
  margin: 0 0 1rem;
  color: var(--ink-muted);
  font-size: 0.92rem;
}

.choice-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
  margin-top: 0.85rem;
}

@media (max-width: 420px) {
  .choice-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }
}

.choice {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
  background: #fbfcfb;
}

.choice:has(input:checked) {
  border-color: var(--brand);
  background: var(--brand-soft);
}

.field-grid {
  display: grid;
  gap: 0.85rem;
}

.field-grid label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink);
}

.field-grid input,
.field-grid textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.7rem 0.8rem;
  font: inherit;
  font-weight: 400;
  background: #fff;
  color: var(--ink);
}

.field-grid input:focus,
.field-grid textarea:focus {
  outline: 2px solid rgba(15, 118, 110, 0.25);
  border-color: var(--brand);
}

.form-actions {
  display: grid;
  gap: 0.65rem;
}

.form-note {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.alert {
  margin-top: 1.25rem;
  padding: 0.9rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
}

.alert-error {
  border-color: #fecdca;
  background: #fef3f2;
  color: var(--danger);
}

.alert-info {
  border-color: #b2ddff;
  background: #eff8ff;
  color: var(--info);
}

.preview-panel {
  margin-top: 1.75rem;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}

.preview-panel h2,
.preview-panel h3 {
  margin: 0 0 0.5rem;
}

.preview-panel h3 {
  margin-top: 1rem;
  font-size: 1rem;
}

.metric-dl {
  display: grid;
  gap: 0.55rem;
  margin: 1rem 0 0;
}

.metric-dl div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--line);
}

.metric-dl dt {
  color: var(--ink-muted);
  font-weight: 500;
}

.metric-dl dd {
  margin: 0;
  font-weight: 600;
}

.metric-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.metric-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}

.metric-list code {
  font-size: 0.85rem;
  color: var(--brand-dark);
}

.metric-list code,
.field-grid input,
.field-grid textarea {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.preview-panel {
  overflow-x: auto;
}

/* Desktop */
@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }

  .site-nav {
    display: flex;
    position: static;
    flex-direction: row;
    align-items: center;
    gap: 1.15rem;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
  }

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

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

  .feature-list {
    grid-template-columns: 1fr 1fr;
    gap: 0 2rem;
  }

  .footer-inner {
    grid-template-columns: 1.4fr 1fr;
    align-items: end;
  }

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

  .field-grid .full {
    grid-column: 1 / -1;
  }

  .hero {
    padding: 5rem 0 5.5rem;
  }

  .cta-band-inner {
    padding: 2.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn {
    transition: none;
  }
}