/* =====================================================================
   MEDITECH TR — Design System
   Aesthetic: "Clinical Innovation" — ice-white canvas, teal→blue
   gradients, biotech (DNA / EKG / molecule) motifs, calm & trustworthy.
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@500;600;700;800&family=Outfit:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Surfaces */
  --bg: #f4f9fb;
  --bg-soft: #eaf3f7;
  --surface: #ffffff;
  --surface-2: #f7fbfc;

  /* Brand — green → teal → blue (logodan örneklendi) */
  --green: #78ab39;
  --green-bright: #94be5e;
  --green-deep: #5d9a3f;
  --teal: #4ba07f;
  --teal-deep: #3f8f86;
  --aqua: #599faa;
  --blue: #1f6fb2;
  --blue-deep: #1d3f8f;
  --navy: #112d56;
  --navy-soft: #2b4d89;

  /* Text */
  --ink: #0e2740;
  --ink-soft: #43576b;
  --ink-dim: #6c8197;
  --ink-faint: #9bb0c0;

  /* Lines */
  --line: #dde9ef;
  --line-soft: #e8f1f5;
  --line-strong: #c7dae3;

  /* Accents */
  --mint: #e6f8f7;
  --sky: #e7f3fd;

  /* Gradients — green → blue (logo yönü) */
  --grad-brand: linear-gradient(120deg, var(--green) 0%, var(--teal) 45%, var(--blue) 78%, var(--blue-deep) 100%);
  --grad-brand-soft: linear-gradient(120deg, #8fc24f 0%, #2f86c4 100%);
  --grad-text: linear-gradient(100deg, var(--green-deep) 0%, var(--teal-deep) 40%, var(--blue) 75%, var(--blue-deep) 100%);
  --grad-mesh:
    radial-gradient(60% 60% at 12% 8%, rgba(120,171,57,0.16), transparent 60%),
    radial-gradient(55% 55% at 92% 4%, rgba(29,63,143,0.12), transparent 60%),
    radial-gradient(70% 60% at 78% 96%, rgba(31,111,178,0.10), transparent 60%);

  /* Shadows (soft, clinical) */
  --shadow-sm: 0 2px 10px rgba(17,45,86,0.05);
  --shadow: 0 14px 40px rgba(31,111,178,0.10);
  --shadow-lg: 0 30px 70px rgba(31,111,178,0.16);
  --glow-teal: 0 10px 36px rgba(75,160,127,0.30);

  /* Type */
  --font-display: 'Plus Jakarta Sans', 'Outfit', sans-serif;
  --font-body: 'Outfit', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --maxw: 1200px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius: 18px;
  --radius-lg: 26px;
  --radius-sm: 12px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --header-h: 74px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 14px);
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  position: relative;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; }
ul { list-style: none; }
::selection { background: rgba(120,171,57,0.25); color: var(--navy); }

/* Atmospheric mesh background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  background: var(--grad-mesh), var(--bg);
}
/* faint dot grid */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: radial-gradient(rgba(23,150,230,0.06) 1px, transparent 1px);
  background-size: 30px 30px;
  mask-image: radial-gradient(circle at 50% 24%, #000 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at 50% 24%, #000 0%, transparent 70%);
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { position: relative; padding-block: clamp(4.5rem, 9vw, 8rem); }

/* Typography utilities */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--teal-deep);
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
  font-weight: 600;
}
.eyebrow::before {
  content: '';
  width: 22px; height: 2px; border-radius: 2px;
  background: var(--grad-brand);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4.4vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--navy);
  max-width: 20ch;
}
.section-lead {
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.3vw, 1.12rem);
  max-width: 58ch;
  margin-top: 1.1rem;
}
.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.section-head { margin-bottom: clamp(2.5rem, 5vw, 3.8rem); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  padding: 0.9em 1.5em;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  font-family: var(--font-display);
  position: relative;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), background 0.4s, color 0.4s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px) scale(0.99); }
.btn-primary {
  color: #fff;
  background: var(--grad-brand);
  box-shadow: var(--glow-teal);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 44px rgba(23,150,230,0.38);
}
.btn-ghost {
  color: var(--navy);
  border: 1.5px solid var(--line-strong);
  background: var(--surface);
}
.btn-ghost:hover {
  border-color: var(--teal);
  color: var(--teal-deep);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}
.btn .arrow { transition: transform 0.4s var(--ease); }
.btn:hover .arrow { transform: translate(3px,-3px); }
.btn-sm { padding: 0.62em 1.1em; font-size: 0.88rem; }

/* Card surface */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

/* Focus / a11y */
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 6px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link {
  position: fixed; top: -100px; left: 16px; z-index: 200;
  background: var(--blue); color: #fff; padding: 0.6em 1em; border-radius: 8px; transition: top 0.3s;
}
.skip-link:focus { top: 16px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}