/* ─── BILSAN WEB SITESI - ANA STILLER ─────────────────────────────────────── */

/* ── Custom Properties ─────────────────────────────────────────────────────── */
:root {
  --clr-bg:        #080810;
  --clr-bg2:       #0d0d1a;
  --clr-surface:   rgba(255,255,255,0.04);
  --clr-border:    rgba(255,255,255,0.08);
  --clr-purple:    #8b5cf6;
  --clr-purple-l:  #a78bfa;
  --clr-cyan:      #06b6d4;
  --clr-cyan-l:    #22d3ee;
  --clr-text:      #e2e8f0;
  --clr-text-muted:#94a3b8;
  --clr-white:     #ffffff;
  --radius:        1rem;
  --radius-lg:     1.5rem;
  --shadow-glow-p: 0 0 40px rgba(139,92,246,0.25);
  --shadow-glow-c: 0 0 40px rgba(6,182,212,0.25);
  --transition:    0.3s ease;
  --font-base:     'Inter', 'Poppins', sans-serif;
  --font-mono:     'JetBrains Mono', monospace;
}

/* ── Reset & Base ───────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-base);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── Typography ─────────────────────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', var(--font-base);
  font-weight: 700;
  line-height: 1.2;
  color: var(--clr-white);
}

.gradient-text {
  background: linear-gradient(135deg, var(--clr-purple-l), var(--clr-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin-bottom: 0.5rem;
}
.section-subtitle {
  color: var(--clr-text-muted);
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  max-width: 600px;
}

/* ── Layout ─────────────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-pad { padding: 6rem 0; }
.section-pad-sm { padding: 3rem 0; }

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}
.section-header .section-subtitle {
  margin: 0 auto;
}

/* ── Animated Gradient Line Under Section Title ─────────────────────────────── */
.section-line {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-purple), var(--clr-cyan));
  border-radius: 99px;
  margin: 1rem auto 1.25rem;
}

/* ── Animated Background Blobs ──────────────────────────────────────────────── */
.blob-bg {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.12;
  animation: blobMove 12s ease-in-out infinite alternate;
}
.blob-1 { width: 600px; height: 600px; background: var(--clr-purple); top: -200px; left: -150px; animation-delay: 0s; }
.blob-2 { width: 500px; height: 500px; background: var(--clr-cyan);   bottom: -150px; right: -100px; animation-delay: -4s; }
.blob-3 { width: 400px; height: 400px; background: var(--clr-purple); top: 40%; left: 40%; animation-delay: -8s; }

@keyframes blobMove {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(50px, 30px) scale(1.15); }
}

/* ── Navbar ──────────────────────────────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1.25rem 0;
  transition: all var(--transition);
}
#navbar.scrolled {
  background: rgba(8,8,16,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--clr-border);
  box-shadow: 0 4px 30px rgba(0,0,0,0.4);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}
.nav-logo img { height: 42px; width: auto; }
.nav-logo-text {
  font-family: 'Poppins', sans-serif;
  font-size: 1.35rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--clr-purple-l), var(--clr-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.nav-links a {
  padding: 0.5rem 0.85rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  transition: all var(--transition);
  white-space: nowrap;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--clr-white);
  background: var(--clr-surface);
}

.nav-cta {
  padding: 0.55rem 1.25rem !important;
  background: linear-gradient(135deg, var(--clr-purple), var(--clr-cyan)) !important;
  color: white !important;
  border-radius: 0.6rem !important;
  font-weight: 600 !important;
}
.nav-cta:hover { opacity: 0.9; transform: translateY(-1px); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--clr-text);
  font-size: 1.35rem;
}

/* ── Mobile Menu ────────────────────────────────────────────────────────────── */
.mobile-menu {
  display: flex;
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(300px, 85vw);
  background: rgba(10,10,20,0.98);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 999;
  flex-direction: column;
  padding: 5rem 1.5rem 2rem;
  gap: 0.4rem;
  border-left: 1px solid var(--clr-border);
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
  overflow-y: auto;
}
.mobile-menu.open {
  transform: translateX(0);
}
.mobile-menu a {
  padding: 0.85rem 1rem;
  border-radius: 0.6rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  transition: all var(--transition);
  border: 1px solid transparent;
}
.mobile-menu a:hover {
  color: var(--clr-white);
  background: var(--clr-surface);
  border-color: var(--clr-border);
}
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 998;
}
.mobile-overlay.open { display: block; }
.mobile-close {
  position: absolute;
  top: 1.25rem; right: 1.25rem;
  background: none; border: none;
  color: var(--clr-text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ── Buttons ────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 0.65rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--clr-purple), var(--clr-cyan));
  color: white;
}
.btn-primary:hover { opacity: 0.9; transform: translateY(-2px); box-shadow: var(--shadow-glow-p); }

.btn-outline {
  background: transparent;
  color: var(--clr-text);
  border: 1px solid var(--clr-border);
}
.btn-outline:hover { border-color: var(--clr-purple); color: var(--clr-purple-l); background: rgba(139,92,246,0.08); }

.btn-ghost {
  background: var(--clr-surface);
  color: var(--clr-text);
  border: 1px solid var(--clr-border);
}
.btn-ghost:hover { background: rgba(255,255,255,0.08); }

.btn-sm { padding: 0.5rem 1.1rem; font-size: 0.825rem; }
.btn-lg { padding: 0.95rem 2.25rem; font-size: 1.05rem; }

/* ── Glassmorphism Card ─────────────────────────────────────────────────────── */
.glass-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: all var(--transition);
}
.glass-card:hover {
  border-color: rgba(139,92,246,0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-p);
}

/* ── HERO / BANNER SLIDER ───────────────────────────────────────────────────── */
.hero-slider {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s ease;
}
.hero-slide.active { opacity: 1; z-index: 2; }

.hero-slide-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  transition: transform 6s ease;
}
.hero-slide.active .hero-slide-bg { transform: scale(1); }

.hero-slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
    rgba(8,8,16,0.90) 0%,
    rgba(8,8,16,0.60) 50%,
    rgba(8,8,16,0.40) 100%);
}

.hero-content {
  position: relative;
  z-index: 3;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(139,92,246,0.15);
  border: 1px solid rgba(139,92,246,0.35);
  color: var(--clr-purple-l);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 1rem;
  border-radius: 99px;
  margin-bottom: 1.5rem;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  width: fit-content;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  max-width: 800px;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--clr-text-muted);
  max-width: 600px;
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.slider-dots {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 0.6rem;
}
.slider-dot {
  width: 8px; height: 8px;
  border-radius: 99px;
  background: rgba(255,255,255,0.3);
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
}
.slider-dot.active {
  width: 28px;
  background: linear-gradient(90deg, var(--clr-purple), var(--clr-cyan));
}

.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--clr-border);
  color: white;
  width: 48px; height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  font-size: 1.1rem;
}
.slider-arrow:hover { background: rgba(139,92,246,0.3); border-color: var(--clr-purple); }
.slider-arrow-prev { left: 1.5rem; }
.slider-arrow-next { right: 1.5rem; }

/* ── Stats Section ──────────────────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.stat-card {
  text-align: center;
  padding: 2rem 1.5rem;
}
.stat-number {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 800;
  background: linear-gradient(135deg, var(--clr-purple-l), var(--clr-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  font-family: 'Poppins', sans-serif;
  margin-bottom: 0.35rem;
}
.stat-label {
  color: var(--clr-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}

/* ── Products Grid ──────────────────────────────────────────────────────────── */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.product-card {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-decoration: none;
  color: inherit;
}

.product-icon-wrap {
  width: 56px; height: 56px;
  border-radius: 0.875rem;
  background: linear-gradient(135deg, rgba(139,92,246,0.2), rgba(6,182,212,0.2));
  border: 1px solid rgba(139,92,246,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--clr-purple-l);
  flex-shrink: 0;
  transition: all var(--transition);
}
.product-card:hover .product-icon-wrap {
  background: linear-gradient(135deg, var(--clr-purple), var(--clr-cyan));
  color: white;
  border-color: transparent;
}

.product-card h3 { font-size: 1.1rem; font-weight: 700; }
.product-card p  { color: var(--clr-text-muted); font-size: 0.875rem; line-height: 1.7; flex: 1; }

.product-card-arrow {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--clr-purple-l);
  margin-top: auto;
}

/* ── References Carousel ────────────────────────────────────────────────────── */
.ref-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.ref-card {
  padding: 1.75rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.ref-logo-wrap {
  width: 80px; height: 80px;
  border-radius: 1rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.ref-logo-wrap img { width: 60px; height: 60px; object-fit: contain; }
.ref-logo-initials {
  font-weight: 700;
  font-size: 1.25rem;
  background: linear-gradient(135deg, var(--clr-purple-l), var(--clr-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.ref-card h4 { font-size: 0.875rem; font-weight: 600; }

.ref-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--clr-border);
}
.ref-filter-btn {
  padding: 0.45rem 1rem;
  border-radius: 99px;
  border: 1px solid var(--clr-border);
  background: transparent;
  color: var(--clr-text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.ref-filter-btn:hover {
  border-color: var(--clr-purple-l);
  color: var(--clr-purple-l);
  background: rgba(139,92,246,0.08);
}
.ref-filter-btn.active {
  background: linear-gradient(135deg, var(--clr-purple), var(--clr-cyan));
  border-color: transparent;
  color: #fff;
}
.ref-filter-count {
  background: rgba(255,255,255,0.2);
  border-radius: 99px;
  padding: 0 0.4rem;
  font-size: 0.75rem;
  min-width: 20px;
  text-align: center;
}

.ref-badge {
  font-size: 0.7rem;
  padding: 0.2rem 0.65rem;
  background: rgba(139,92,246,0.12);
  border: 1px solid rgba(139,92,246,0.2);
  border-radius: 99px;
  color: var(--clr-purple-l);
  font-weight: 500;
}

/* ── Partners Grid ──────────────────────────────────────────────────────────── */
.partners-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  align-items: center;
}

.partner-card {
  padding: 1.25rem 2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
  flex-direction: column;
  min-width: 160px;
}
.partner-card img {
  height: 40px;
  width: auto;
  object-fit: contain;
  filter: brightness(0.7) grayscale(0.5);
  transition: all var(--transition);
}
.partner-card:hover img { filter: none; }
.partner-name { font-size: 0.875rem; font-weight: 600; color: var(--clr-text-muted); }
.partner-card:hover .partner-name { color: var(--clr-text); }

/* ── News Cards ─────────────────────────────────────────────────────────────── */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.news-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
}

.news-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--transition);
}
.news-card:hover .news-card-img { transform: scale(1.04); }

.news-card-img-wrap {
  overflow: hidden;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.news-card-img-placeholder {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, rgba(139,92,246,0.15), rgba(6,182,212,0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--clr-purple-l);
}

.news-card-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  border-top: 0;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-top: none;
}

.news-card-meta {
  font-size: 0.78rem;
  color: var(--clr-purple-l);
  font-weight: 600;
  font-family: var(--font-mono);
}

.news-card h3 { font-size: 1.05rem; font-weight: 700; }
.news-card p  { color: var(--clr-text-muted); font-size: 0.85rem; line-height: 1.7; flex: 1; }
.news-read-more {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-purple-l);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* ── About Section ──────────────────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about-feature-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}
.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
}
.about-feature-icon {
  width: 44px; height: 44px;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, rgba(139,92,246,0.2), rgba(6,182,212,0.2));
  border: 1px solid rgba(139,92,246,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--clr-cyan);
  flex-shrink: 0;
}
.about-feature h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.25rem; }
.about-feature p  { font-size: 0.825rem; color: var(--clr-text-muted); }

.about-image-wrap {
  position: relative;
}
.about-image-wrap img {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--clr-border);
}
.about-image-badge {
  position: absolute;
  bottom: -1.5rem;
  right: -1.5rem;
  padding: 1.25rem 1.75rem;
  background: linear-gradient(135deg, var(--clr-purple), var(--clr-cyan));
  border-radius: var(--radius);
  text-align: center;
}
.about-image-badge span {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  color: white;
}
.about-image-badge small {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.8);
}

/* ── Team Grid ──────────────────────────────────────────────────────────────── */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
}

.team-card {
  overflow: hidden;
  text-align: center;
}
.team-card-photo {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  object-position: top;
  transition: transform var(--transition);
}
.team-card:hover .team-card-photo { transform: scale(1.04); }

.team-card-photo-wrap {
  overflow: hidden;
  border-radius: var(--radius) var(--radius) 0 0;
  background: linear-gradient(135deg, rgba(139,92,246,0.2), rgba(6,182,212,0.2));
}
.team-card-photo-placeholder {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--clr-purple-l);
  background: linear-gradient(135deg, rgba(139,92,246,0.1), rgba(6,182,212,0.1));
}

.team-card-body {
  padding: 1.25rem;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
}
.team-card-body h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.25rem; }
.team-card-body .title { font-size: 0.8rem; color: var(--clr-purple-l); font-weight: 600; margin-bottom: 0.75rem; }

.team-socials {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
}
.team-socials a {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--clr-text-muted);
  transition: all var(--transition);
}
.team-socials a:hover { background: var(--clr-purple); border-color: var(--clr-purple); color: white; }

/* ── CTA Section ────────────────────────────────────────────────────────────── */
.cta-section {
  background: linear-gradient(135deg, rgba(139,92,246,0.12), rgba(6,182,212,0.08));
  border: 1px solid rgba(139,92,246,0.2);
  border-radius: var(--radius-lg);
  padding: 4rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle, rgba(139,92,246,0.1) 0%, transparent 60%);
  pointer-events: none;
}
.cta-section h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin-bottom: 1rem; }
.cta-section p  { color: var(--clr-text-muted); margin-bottom: 2rem; max-width: 520px; margin-left: auto; margin-right: auto; }

/* ── Page Hero (iç sayfa üst başlık) ────────────────────────────────────────── */
.page-hero {
  padding: 10rem 0 4rem;
  background: linear-gradient(180deg, rgba(139,92,246,0.06) 0%, transparent 100%);
  border-bottom: 1px solid var(--clr-border);
  position: relative;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(139,92,246,0.12) 0%, transparent 60%);
}
.page-hero-inner { position: relative; text-align: center; }
.page-hero h1 { font-size: clamp(2rem, 5vw, 3.5rem); margin-bottom: 1rem; }
.page-hero p  { color: var(--clr-text-muted); max-width: 600px; margin: 0 auto; font-size: 1.1rem; }
.breadcrumb {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.8rem;
  color: var(--clr-text-muted);
}
.breadcrumb a { color: var(--clr-purple-l); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb-sep { color: var(--clr-border); }

/* ── Product Detail ──────────────────────────────────────────────────────────── */
.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.product-detail-img {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--clr-border);
}
.product-detail-body { display: flex; flex-direction: column; gap: 1.5rem; }
.product-detail-icon {
  width: 72px; height: 72px;
  border-radius: 1rem;
  background: linear-gradient(135deg, rgba(139,92,246,0.2), rgba(6,182,212,0.2));
  border: 1px solid rgba(139,92,246,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--clr-purple-l);
}
.product-content {
  color: var(--clr-text);
  line-height: 1.8;
  font-size: 0.95rem;
}
.product-content p { margin-bottom: 1rem; }
.product-content p.lead {
  font-size: 1.05rem;
  color: var(--clr-text);
  line-height: 1.9;
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--clr-cyan);
  background: rgba(6,182,212,0.06);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-bottom: 1.5rem;
}
.product-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--clr-purple-l);
  margin: 1.75rem 0 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--clr-border);
}
.product-content h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--clr-cyan);
  margin-bottom: 0.35rem;
}
.product-content ul {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin: 0.5rem 0 1rem 0;
  padding: 0;
  list-style: none;
}
.product-content li {
  padding-left: 1.25rem;
  position: relative;
  color: var(--clr-text);
}
.product-content li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--clr-cyan);
}
.features-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  margin-bottom: 0.5rem;
}
.feature-item {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  transition: border-color 0.2s, background 0.2s;
}
.feature-item:hover {
  border-color: rgba(139,92,246,0.4);
  background: rgba(139,92,246,0.05);
}
.feature-item h4 { margin-bottom: 0.4rem; }
.feature-item p { font-size: 0.88rem; color: var(--clr-text-muted); margin: 0; line-height: 1.6; }
.feature-item ul { margin: 0.5rem 0 0; }
.feature-item li { font-size: 0.85rem; color: var(--clr-text-muted); }

/* ── Download Page ──────────────────────────────────────────────────────────── */
.downloads-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.download-card {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem 2rem;
  text-decoration: none;
  color: inherit;
}

.download-icon {
  width: 56px; height: 56px;
  border-radius: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}
.download-icon.exe  { background: rgba(139,92,246,0.15); color: var(--clr-purple-l); border: 1px solid rgba(139,92,246,0.25); }
.download-icon.zip  { background: rgba(6,182,212,0.15);  color: var(--clr-cyan);     border: 1px solid rgba(6,182,212,0.25); }
.download-icon.pdf  { background: rgba(239,68,68,0.15);  color: #f87171;             border: 1px solid rgba(239,68,68,0.25); }
.download-icon.other{ background: rgba(99,102,241,0.15); color: #818cf8;             border: 1px solid rgba(99,102,241,0.25); }

.download-info h3 { font-size: 1rem; font-weight: 700; margin-bottom: 0.25rem; }
.download-info p  { font-size: 0.825rem; color: var(--clr-text-muted); }
.download-meta    { font-size: 0.75rem; color: var(--clr-purple-l); margin-top: 0.35rem; font-family: var(--font-mono); }

.download-btn {
  margin-left: auto;
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-purple), var(--clr-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
  transition: all var(--transition);
}
.download-card:hover .download-btn { transform: scale(1.1); box-shadow: var(--shadow-glow-p); }

/* ── Contact Page ───────────────────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 3rem;
}

.contact-info-card {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}
.contact-info-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.contact-info-icon {
  width: 44px; height: 44px;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, rgba(139,92,246,0.2), rgba(6,182,212,0.2));
  border: 1px solid rgba(139,92,246,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--clr-cyan);
  flex-shrink: 0;
}
.contact-info-item h4 { font-size: 0.8rem; color: var(--clr-text-muted); font-weight: 500; margin-bottom: 0.25rem; }
.contact-info-item p  { font-size: 0.9rem; color: var(--clr-text); }

/* ── Form ───────────────────────────────────────────────────────────────────── */
.form-card { padding: 2.5rem; }

.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.form-control {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--clr-border);
  border-radius: 0.65rem;
  padding: 0.75rem 1rem;
  color: var(--clr-text);
  font-size: 0.9rem;
  font-family: var(--font-base);
  outline: none;
  transition: border-color var(--transition);
}
.form-control:focus { border-color: var(--clr-purple); background: rgba(139,92,246,0.06); }
.form-control::placeholder { color: rgba(148,163,184,0.5); }
textarea.form-control { resize: vertical; min-height: 120px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

/* ── Maps ───────────────────────────────────────────────────────────────────── */
.map-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--clr-border);
  height: 350px;
  margin-top: 2rem;
}
.map-wrap iframe { width: 100%; height: 100%; border: none; }

/* ── Flash Messages ──────────────────────────────────────────────────────────── */
.flash-container {
  position: fixed;
  top: 5rem;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 360px;
}
.flash-msg {
  padding: 1rem 1.25rem;
  border-radius: 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: slideInRight 0.3s ease;
  border: 1px solid;
}
.flash-msg.success { background: rgba(16,185,129,0.1); border-color: rgba(16,185,129,0.3); color: #6ee7b7; }
.flash-msg.error   { background: rgba(239,68,68,0.1);  border-color: rgba(239,68,68,0.3);  color: #fca5a5; }
.flash-msg.info    { background: rgba(6,182,212,0.1);  border-color: rgba(6,182,212,0.3);  color: var(--clr-cyan-l); }

@keyframes slideInRight {
  from { transform: translateX(110%); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

/* ── Fade-in Animation ───────────────────────────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* ── Divider ────────────────────────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--clr-border), transparent);
  margin: 0;
}

/* ── Footer ──────────────────────────────────────────────────────────────────── */
footer {
  background: var(--clr-bg2);
  border-top: 1px solid var(--clr-border);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--clr-text-muted);
  font-size: 0.875rem;
  line-height: 1.8;
  margin: 1rem 0;
}

.footer-socials {
  display: flex;
  gap: 0.6rem;
  margin-top: 1rem;
}
.footer-socials a {
  width: 36px; height: 36px;
  border-radius: 0.5rem;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-muted);
  font-size: 0.85rem;
  transition: all var(--transition);
}
.footer-socials a:hover { background: var(--clr-purple); border-color: var(--clr-purple); color: white; }

.footer-col h4 {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-text-muted);
  margin-bottom: 1.25rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.footer-links a {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.footer-links a:hover { color: var(--clr-purple-l); }

.footer-bottom {
  border-top: 1px solid var(--clr-border);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-bottom p { font-size: 0.8rem; color: var(--clr-text-muted); }
.footer-bottom a { color: var(--clr-purple-l); }

/* ── Scroll to top ───────────────────────────────────────────────────────────── */
#scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-purple), var(--clr-cyan));
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
  z-index: 900;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition);
  box-shadow: 0 4px 20px rgba(139,92,246,0.4);
}
#scroll-top.visible { opacity: 1; transform: translateY(0); }
#scroll-top:hover   { transform: translateY(-3px); box-shadow: var(--shadow-glow-p); }

/* ── About Page Specific ─────────────────────────────────────────────────────── */
.vision-mission-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
.vision-card {
  padding: 2.5rem;
}
.vision-card-icon {
  width: 60px; height: 60px;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
}
.vision-card-icon.purple { background: linear-gradient(135deg, rgba(139,92,246,0.2), rgba(6,182,212,0.1)); color: var(--clr-purple-l); border: 1px solid rgba(139,92,246,0.3); }
.vision-card-icon.cyan   { background: linear-gradient(135deg, rgba(6,182,212,0.2), rgba(139,92,246,0.1)); color: var(--clr-cyan-l);   border: 1px solid rgba(6,182,212,0.3); }

/* ── News Detail ─────────────────────────────────────────────────────────────── */
.news-content {
  max-width: 820px;
  margin: 0 auto;
}
.news-content img {
  width: 100%;
  border-radius: var(--radius-lg);
  margin: 2rem 0;
  border: 1px solid var(--clr-border);
}
.news-content h2 { font-size: 1.5rem; margin: 2rem 0 1rem; }
.news-content h3 { font-size: 1.2rem; margin: 1.5rem 0 0.75rem; }
.news-content p  { margin-bottom: 1rem; color: var(--clr-text); line-height: 1.9; }
.news-content ul { margin: 0.75rem 0 0.75rem 1.5rem; }
.news-content ul li { margin-bottom: 0.4rem; }
.news-content li::marker { color: var(--clr-cyan); }

/* ── Partners Grid ───────────────────────────────────────────────────────────── */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}
.partner-detail-card {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* ── Steps Grid (Nasıl Çalışıyoruz) ─────────────────────────────────────────── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

/* ── Values Grid (Neden Bilsan) ──────────────────────────────────────────────── */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* ── Admin Sidebar (yeni sayfa türü değil, ayrı şablonda) ────────────────────── */
/* Admin stiller templates/admin/*.html içinde tanımlanacak */

/* ── Responsive ─────────────────────────────────────────────────────────────── */

/* ── Tablet (≤1024px) ── */
@media (max-width: 1024px) {
  .products-grid       { grid-template-columns: repeat(2, 1fr); }
  .ref-grid            { grid-template-columns: repeat(3, 1fr); }
  .team-grid           { grid-template-columns: repeat(3, 1fr); }
  .stats-grid          { grid-template-columns: repeat(2, 1fr); }
  .footer-grid         { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .about-grid          { grid-template-columns: 1fr; }
  .product-detail-grid { grid-template-columns: 1fr; gap: 2rem; }
  .vision-mission-grid { grid-template-columns: 1fr 1fr; }
  .downloads-grid      { grid-template-columns: 1fr; }
  .contact-grid        { grid-template-columns: 1fr; gap: 2rem; }
  .partners-grid       { grid-template-columns: repeat(2, 1fr); }
  .steps-grid          { grid-template-columns: repeat(2, 1fr); }
  .values-grid         { grid-template-columns: repeat(2, 1fr); }
}

/* ── Mobile (≤768px) ── */
@media (max-width: 768px) {
  /* Navbar */
  .nav-links   { display: none; }
  .nav-toggle  { display: flex; }
  .nav-logo img { height: 34px; }
  .nav-logo-text { font-size: 1.1rem; }
  #navbar { padding: 1rem 0; }

  /* Layout */
  .container   { padding: 0 1rem; }
  .section-pad { padding: 3.5rem 0; }
  .section-pad-sm { padding: 2rem 0; }
  .section-header { margin-bottom: 2.5rem; }

  /* Hero */
  .hero-slider { min-height: 520px; height: 92vh; }
  .hero-title  { font-size: clamp(1.85rem, 7vw, 2.8rem); }
  .hero-subtitle { font-size: 0.95rem; margin-bottom: 1.75rem; }
  .hero-actions { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-badge  { font-size: 0.72rem; }
  .slider-arrow { width: 36px; height: 36px; font-size: 0.85rem; }
  .slider-arrow-prev { left: 0.75rem; }
  .slider-arrow-next { right: 0.75rem; }

  /* Stats */
  .stats-grid  { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .stat-card   { padding: 1.5rem 1rem; }

  /* Products */
  .products-grid  { grid-template-columns: 1fr; gap: 1.25rem; }
  .product-card   { padding: 1.5rem; }

  /* References */
  .ref-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .ref-card { padding: 1.25rem 1rem; }
  .ref-filter-bar {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 0.75rem;
    gap: 0.4rem;
  }
  .ref-filter-bar::-webkit-scrollbar { display: none; }
  .ref-filter-btn { white-space: nowrap; flex-shrink: 0; }

  /* Team */
  .team-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }

  /* News */
  .news-grid { grid-template-columns: 1fr; }

  /* Partners / Steps / Values */
  .partners-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .steps-grid    { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .values-grid   { grid-template-columns: repeat(1, 1fr); gap: 1rem; }
  .partner-detail-card { padding: 1.25rem; gap: 1rem; }
  .news-detail-card { padding: 1.75rem !important; }

  /* Downloads */
  .downloads-grid { grid-template-columns: 1fr; }
  .download-card  { padding: 1.25rem; gap: 1rem; flex-wrap: wrap; }
  .download-info h3 { font-size: 0.9rem; }
  .download-btn { margin-left: auto; }

  /* Contact */
  .contact-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .contact-info-card { padding: 1.5rem; gap: 1.25rem; }
  .form-card { padding: 1.5rem; }
  .form-row  { grid-template-columns: 1fr; }
  .map-wrap  { height: 250px; }

  /* About */
  .about-grid { grid-template-columns: 1fr; }
  .about-image-badge { right: 0.5rem; bottom: -0.75rem; padding: 0.85rem 1.25rem; }
  .about-image-badge span { font-size: 1.35rem; }
  .vision-mission-grid { grid-template-columns: 1fr; gap: 1rem; }
  .vision-card { padding: 1.5rem; }

  /* Product Detail */
  .product-detail-grid { grid-template-columns: 1fr; gap: 1.75rem; }
  .features-list { grid-template-columns: 1fr; }

  /* CTA */
  .cta-section { padding: 2.5rem 1.25rem; }
  .cta-section h2 { font-size: 1.6rem; }

  /* Page Hero */
  .page-hero { padding: 7rem 0 3rem; }
  .page-hero h1 { font-size: clamp(1.6rem, 5vw, 2.5rem); }

  /* Footer */
  .footer-grid   { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 0.5rem; }
  footer { padding: 3rem 0 1.5rem; }

  /* Flash messages */
  .flash-container { right: 1rem; left: 1rem; max-width: 100%; }

  /* Scroll top */
  #scroll-top { bottom: 1.25rem; right: 1.25rem; width: 38px; height: 38px; font-size: 0.85rem; }

  /* Buttons */
  .btn-lg { padding: 0.85rem 1.75rem; font-size: 0.95rem; }
}

/* ── Small Mobile (≤480px) ── */
@media (max-width: 480px) {
  .container   { padding: 0 0.875rem; }
  .section-pad { padding: 3rem 0; }
  .blob { display: none; }

  /* Navbar */
  .nav-logo-text { display: none; }

  /* Hero */
  .hero-slider { height: 88vh; min-height: 480px; }
  .hero-title  { font-size: clamp(1.6rem, 8vw, 2.25rem); }
  .hero-subtitle { font-size: 0.875rem; }
  .slider-arrow { display: none; }

  /* Stats */
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 0.75rem; }
  .stat-card  { padding: 1.25rem 0.75rem; }

  /* Products */
  .product-card { padding: 1.25rem; }

  /* References */
  .ref-grid { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
  .ref-card { padding: 1rem 0.75rem; }
  .ref-logo-wrap { width: 60px; height: 60px; }

  /* Team */
  .team-grid { grid-template-columns: 1fr 1fr; gap: 0.75rem; }
  .team-card-body { padding: 0.85rem; }
  .team-card-body h3 { font-size: 0.8rem; }
  .team-card-body .title { font-size: 0.7rem; }

  /* Partners / Steps / Values */
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid    { grid-template-columns: repeat(2, 1fr); }
  .values-grid   { grid-template-columns: 1fr; }
  .partner-detail-card { padding: 1rem; }
  .news-detail-card { padding: 1.25rem !important; }

  /* Contact */
  .contact-info-card { padding: 1.25rem; }
  .form-card { padding: 1.25rem; }
  .contact-info-icon { width: 38px; height: 38px; font-size: 0.95rem; }

  /* Captcha */
  .captcha-btn { width: 68px; height: 68px; font-size: 0.66rem; }
  .captcha-btn i { font-size: 1.35rem; }

  /* Downloads */
  .download-card  { padding: 1rem; gap: 0.75rem; }
  .download-icon  { width: 44px; height: 44px; font-size: 1.2rem; }
  .download-info h3 { font-size: 0.85rem; }

  /* About */
  .about-image-badge { position: static; margin-top: 1rem; border-radius: var(--radius); display: inline-block; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }

  /* Page hero */
  .page-hero { padding: 6.5rem 0 2.5rem; }
  .page-hero p { font-size: 0.9rem; }

  /* Vision / Mission */
  .vision-card { padding: 1.25rem; }
  .vision-card-icon { width: 48px; height: 48px; font-size: 1.35rem; }

  /* CTA */
  .cta-section { padding: 2rem 1rem; }

  /* Product detail */
  .product-detail-icon { width: 56px; height: 56px; font-size: 1.5rem; }
  .product-content p.lead { font-size: 0.9rem; padding: 0.75rem 1rem; }

  /* Flash */
  .flash-container { top: 4.5rem; right: 0.75rem; left: 0.75rem; }
  .flash-msg { font-size: 0.8rem; padding: 0.75rem 1rem; }
}