/*
  Sencer Hidrolik - Global styles
  Author: Cursor AI
*/

:root {
  --color-bg: #ffffff;
  --color-surface: #f8fafc;
  --color-muted: #64748b;
  --color-text: #0f172a;
  --color-primary: #ef4444;
  --color-primary-600: #b91c1c;
  --color-accent: #991b1b;
  --container: 1200px;
  --radius: 14px;
  --shadow-lg: 0 20px 50px rgba(0,0,0,0.25);
  --shadow-md: 0 10px 30px rgba(0,0,0,0.18);
  --shadow-sm: 0 6px 18px rgba(0,0,0,0.12);
}

/* Reset */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica Neue, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 600px at 20% 0%, #fff1f2, #ffffff 60%, #ffffff 100%);
  color: var(--color-text);
  line-height: 1.6;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(140%) blur(12px);
  background: linear-gradient(180deg, rgba(255,255,255,0.95), rgba(255,255,255,0.85) 60%, rgba(255,255,255,0));
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
.brand .logo img {
  border-radius: 0px 0px 10px 10px;
  height: 140px;
  margin-top: -30px;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 40px;
}
.brand .logo {
  width: 140px;
  height: 80px;
  border-radius: 8px;
  background-size: contain;
  box-shadow: none;
  overflow: hidden;
  justify-content: center;
  display: flex
;
}
.brand .title { display: none; }
.brand .title {
  font-weight: 800;
  letter-spacing: 0.4px;
}
.brand .title span { color: var(--color-primary); }

.menu {
  display: flex;
  align-items: center;
  gap: 18px;
}
.menu a {
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--color-muted);
}
.menu a:hover, .menu a.active {
  color: var(--color-text);
  background: rgba(0,0,0,0.05);
}

.hamburger {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(0,0,0,0.04);
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(0,0,0,0.08);
}
.hamburger span {
  width: 20px;
  height: 2px;
  background: var(--color-text);
  position: relative;
}
.hamburger span::before, .hamburger span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-text);
}
.hamburger span::before { top: -6px; }
.hamburger span::after { top: 6px; }

/* Hero */
.hero {
  padding: 60px 0 30px;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr; /* left: 3D, right: text */
  gap: 40px;
  align-items: center;
}
.hero-copy h1 {
  margin: 0 0 12px 0;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.15;
}
.hero-copy h1 .accent { color: var(--color-primary); }
.hero-copy p { color: var(--color-muted); margin: 0 0 24px 0; }
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 12px;
  background: rgba(0,0,0,0.04);
  color: var(--color-text);
  border: 1px solid rgba(0,0,0,0.08);
}
.btn.primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-600));
  border: none;
  color: #ffffff;
  font-weight: 700;
}
.btn:hover { filter: brightness(1.05); transform: translateY(-1px); }

/* 3D Hydraulic Block */
.block-stage {
  perspective: 1200px;
  height: min(460px, 60vw);
  display: grid;
  place-items: center;
}
.hydraulic-block {
  position: relative;
  width: min(360px, 46vw);
  height: min(260px, 34vw);
  transform-style: preserve-3d;
  transform: rotateX(-18deg) rotateY(28deg);
  animation: spin 16s ease-in-out infinite alternate;
}
@keyframes spin {
  0% { transform: rotateX(-18deg) rotateY(28deg) translateZ(0); }
  100% { transform: rotateX(-24deg) rotateY(-38deg) translateZ(0); }
}
.face {
  position: absolute;
  inset: 0;
  border-radius: 14px;
  background: linear-gradient(145deg, #f1f5f9, #e2e8f0);
  box-shadow: inset 0 0 0 2px rgba(0,0,0,0.03), inset 0 0 40px rgba(0,0,0,0.04);
}
.face::after { /* metal sheen */
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120px 40px at 20% 20%, rgba(255,255,255,0.18), transparent),
              radial-gradient(80px 30px at 70% 80%, rgba(255,255,255,0.12), transparent);
  pointer-events: none;
}
.front  { transform: translateZ(100px); }
.back   { transform: rotateY(180deg) translateZ(100px); }
.right  { width: 200px; left: auto; right: 60px; transform: rotateY(90deg) translateZ(260px); border-radius: 10px; }
.left   { width: 200px; left: -100px; transform: rotateY(-90deg) translateZ(100px); border-radius: 10px; }
.top    { height: 200px; top: -50px; transform: rotateX(90deg) translateZ(130px); border-radius: 10px; }
.bottom { height: 200px; bottom: -100px; transform: rotateX(-90deg) translateZ(130px); border-radius: 10px; }

/* circular ports on faces */
.ports {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 24% 36%, rgba(0,0,0,0.85) 0 10px, rgba(0,0,0,0.35) 11px 14px, transparent 15px),
    radial-gradient(circle at 74% 46%, rgba(0,0,0,0.85) 0 10px, rgba(0,0,0,0.35) 11px 14px, transparent 15px),
    radial-gradient(circle at 52% 74%, rgba(0,0,0,0.85) 0 10px, rgba(0,0,0,0.35) 11px 14px, transparent 15px);
  filter: drop-shadow(0 6px 18px rgba(0,0,0,0.45));
}

/* Section: Categories */
.section {
  padding: 40px 0;
}
.section .heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 18px;
}
.section .heading h2 {
  margin: 0;
  font-size: clamp(22px, 2.8vw, 32px);
}
.muted { color: var(--color-muted); }

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.card {
  background: #ffffff;
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card h3 { margin: 10px 0 8px; }
.card p { margin: 0; color: var(--color-muted); }

/* References slider */
.refs {
  overflow: hidden;
  border-radius: var(--radius);
  background: #ffffff;
  border: 1px solid rgba(0,0,0,0.06);
}
.slider {
  display: flex;
  gap: 26px;
  padding: 18px;
  animation: slide 30s linear infinite;
  will-change: transform;
}
@keyframes slide {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.refs .logo {
  min-width: 160px;
  height: 56px;
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.08);
  background: linear-gradient(180deg, rgba(0,0,0,0.02), rgba(0,0,0,0));
  display: grid;
  place-items: center;
  color: var(--color-muted);
  font-weight: 700;
  letter-spacing: 1px;
}

/* Products */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.product-card img { border-radius: 12px; }
.product-card h4 { margin: 12px 0 6px; }
.product-card p { margin: 0; color: var(--color-muted); }

/* Footer */
footer {
  margin-top: 40px;
  padding: 26px 0;
  border-top: 1px solid rgba(0,0,0,0.06);
  color: var(--color-muted);
}

/* Utilities */
.pill {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,0.1);
  background: rgba(239,68,68,0.08);
  color: var(--color-primary);
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* Forms */
form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
label { display: block; margin: 10px 0 6px; }
input, textarea, select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  background: #ffffff;
  border: 1px solid rgba(0,0,0,0.1);
  color: var(--color-text);
  outline: none;
}
textarea { min-height: 120px; resize: vertical; }

/* Responsive */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; }
  .block-stage { order: -1; height: min(420px, 80vw); }
}
@media (max-width: 860px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .menu { display: none; position: absolute; top: 64px; right: 18px; padding: 12px; flex-direction: column; background: rgba(255,255,255,0.98); border: 1px solid rgba(0,0,0,0.08); border-radius: 12px; }
  .menu.open { display: flex; }
  .hamburger { display: inline-flex; }
}
@media (max-width: 560px) {
  .grid-4, .grid-3 { grid-template-columns: 1fr; }
  form .row { grid-template-columns: 1fr; }
}