@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=DM+Sans:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ============================================
   TORSAN CNC — Shared Design System
   Tüm ürün detay sayfaları için ortak stiller
   ============================================ */

:root {
  --bg-deep: #050B17;
  --bg-base: #0A1426;
  --bg-elevated: #0F1D33;
  --bg-elevated-2: #142235;
  --border-subtle: rgba(255,255,255,0.06);
  --border-strong: rgba(64,200,224,0.18);
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-tertiary: #64748B;
  --text-cyan: #40C8E0;
  --text-cyan-soft: #5FDEF5;
  --accent-cyan: #40C8E0;
  --accent-orange: #FB923C;
  --accent-orange-hover: #F97316;
  --accent-success: #34D399;
  --accent-warning: #FBBF24;
  --accent-red: #F87171;
  --font-display: 'Outfit', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --container-max: 1280px;
  --container-padding: clamp(1.25rem, 4vw, 3rem);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 24px 48px rgba(0,0,0,0.5);
  --shadow-cyan: 0 8px 32px rgba(64,200,224,0.15);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-body); color: var(--text-primary); background: var(--bg-deep); line-height: 1.6; overflow-x: hidden; }
h1, h2, h3, h4, h5 { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.02em; line-height: 1.15; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
img { max-width: 100%; display: block; }
::selection { background: var(--accent-cyan); color: var(--bg-deep); }

.container { max-width: var(--container-max); margin: 0 auto; padding-left: var(--container-padding); padding-right: var(--container-padding); }
section { padding: 5rem 0; position: relative; }
@media (max-width: 768px) { section { padding: 4rem 0; } }

.section-eyebrow { font-family: var(--font-mono); font-size: 0.75rem; font-weight: 500; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-cyan); display: inline-flex; align-items: center; gap: 0.5rem; margin-bottom: 1rem; }
.section-eyebrow::before { content: ''; width: 24px; height: 1px; background: var(--accent-cyan); }
.section-title { font-size: clamp(1.875rem, 4vw, 2.75rem); font-weight: 800; margin-bottom: 1.25rem; max-width: 720px; }
.section-lead { font-size: clamp(1rem, 1.4vw, 1.0625rem); color: var(--text-secondary); max-width: 640px; line-height: 1.65; }

/* TOPBAR + HEADER */
.topbar { background: rgba(0,0,0,0.4); border-bottom: 1px solid var(--border-subtle); font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-tertiary); }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; height: 36px; gap: 1.5rem; flex-wrap: wrap; }
.topbar-left { display: flex; gap: 1.5rem; align-items: center; }
.topbar a:hover { color: var(--text-cyan); transition: color 0.2s; }

header.site-header { position: sticky; top: 0; z-index: 100; background: rgba(5,11,23,0.88); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--border-subtle); }
.nav { display: flex; justify-content: space-between; align-items: center; height: 76px; gap: 1.5rem; }
.logo { display: flex; align-items: center; gap: 0.75rem; font-family: var(--font-display); font-weight: 800; font-size: 1.375rem; }
.logo-mark { width: 38px; height: 38px; background: linear-gradient(135deg, var(--accent-cyan), #0EA5E9); border-radius: 8px; display: grid; place-items: center; color: var(--bg-deep); font-weight: 800; box-shadow: var(--shadow-cyan); }
.logo-text { display: flex; flex-direction: column; line-height: 1; gap: 2px; }
.logo-text small { font-family: var(--font-mono); font-size: 0.625rem; color: var(--text-cyan); letter-spacing: 0.14em; text-transform: uppercase; font-weight: 400; }
.nav-links { display: flex; gap: 1.75rem; list-style: none; font-size: 0.9375rem; font-weight: 500; }
.nav-links a { color: var(--text-secondary); transition: color 0.2s; padding: 0.5rem 0; }
.nav-links a:hover { color: var(--text-primary); }
.nav-cta { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.625rem 1.125rem; background: var(--accent-orange); color: var(--bg-deep); font-weight: 600; font-size: 0.875rem; border-radius: 6px; transition: all 0.2s; }
.nav-cta:hover { background: var(--accent-orange-hover); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(251,146,60,0.3); }
@media (max-width: 1024px) { .nav-links { display: none; } }

.breadcrumb { padding: 1.25rem 0; border-bottom: 1px solid var(--border-subtle); font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-tertiary); }
.breadcrumb a { color: var(--text-secondary); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--text-cyan); }
.breadcrumb .sep { margin: 0 0.625rem; opacity: 0.5; }
.breadcrumb .current { color: var(--text-primary); }

/* HERO */
.product-hero { padding: 4rem 0 3rem; position: relative; overflow: hidden; }
.product-hero::before { content: ''; position: absolute; top: -100px; right: -200px; width: 700px; height: 700px; background: radial-gradient(circle, rgba(64,200,224,0.07) 0%, transparent 60%); pointer-events: none; }
.hero-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 3rem; align-items: center; position: relative; z-index: 1; }
@media (max-width: 1024px) { .hero-grid { grid-template-columns: 1fr; gap: 2.5rem; } }

.hero-tag { display: inline-flex; align-items: center; gap: 0.625rem; padding: 0.4rem 0.875rem; background: rgba(64,200,224,0.08); border: 1px solid var(--border-strong); border-radius: 999px; font-family: var(--font-mono); font-size: 0.6875rem; color: var(--text-cyan); letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 1.25rem; }
.hero-tag-dot { width: 6px; height: 6px; background: var(--accent-cyan); border-radius: 50%; }
.ce-badge { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.3rem 0.75rem; background: rgba(52,211,153,0.08); border: 1px solid rgba(52,211,153,0.3); border-radius: 999px; font-family: var(--font-mono); font-size: 0.6875rem; color: var(--accent-success); letter-spacing: 0.12em; text-transform: uppercase; margin-left: 0.5rem; }
.product-name { font-size: clamp(2.5rem, 5.5vw, 4rem); font-weight: 800; line-height: 1.05; letter-spacing: -0.03em; margin-bottom: 0.5rem; }
.product-name small { display: block; font-family: var(--font-mono); font-size: 0.875rem; font-weight: 400; color: var(--text-cyan); letter-spacing: 0.08em; text-transform: uppercase; margin-top: 0.5rem; }
.product-tagline { font-size: clamp(1.0625rem, 1.5vw, 1.1875rem); color: var(--text-secondary); line-height: 1.55; max-width: 560px; margin: 1.5rem 0 2rem; }

.hero-cta-group { display: flex; gap: 0.875rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.btn { display: inline-flex; align-items: center; gap: 0.625rem; padding: 0.875rem 1.5rem; border-radius: 8px; font-weight: 600; font-size: 0.9375rem; transition: all 0.2s; }
.btn-primary { background: var(--accent-orange); color: var(--bg-deep); }
.btn-primary:hover { background: var(--accent-orange-hover); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(251,146,60,0.35); }
.btn-secondary { background: transparent; color: var(--text-primary); border: 1px solid var(--border-strong); }
.btn-secondary:hover { background: rgba(64,200,224,0.08); border-color: var(--accent-cyan); }
.btn-arrow { transition: transform 0.2s; }
.btn:hover .btn-arrow { transform: translateX(4px); }

.hero-specs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; }
@media (max-width: 600px) { .hero-specs { grid-template-columns: 1fr; } }
.hero-spec { background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: 10px; padding: 1rem 1.25rem; transition: all 0.2s; }
.hero-spec:hover { border-color: var(--border-strong); background: var(--bg-elevated-2); }
.hero-spec-label { font-family: var(--font-mono); font-size: 0.6875rem; color: var(--text-tertiary); letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 0.4rem; }
.hero-spec-value { font-family: var(--font-mono); font-size: 1.25rem; font-weight: 600; color: var(--text-cyan); letter-spacing: -0.02em; }

/* PRODUCT IMAGE FRAME */
.product-image-frame { position: relative; aspect-ratio: 4/5; background: linear-gradient(135deg, #1a3551 0%, #0F1E33 50%, #1a3551 100%); border: 1px solid var(--border-strong); border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255,255,255,0.04); }
.product-image-frame::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(64,200,224,0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(64,200,224,0.05) 1px, transparent 1px); background-size: 32px 32px; pointer-events: none; }
.product-image-frame::after { content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 80%; height: 80%; background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 60%); pointer-events: none; }
.product-image-frame img { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); max-width: 75%; max-height: 80%; width: auto; height: auto; z-index: 1; filter: drop-shadow(0 24px 48px rgba(0,0,0,0.5)); }
.frame-corners { position: absolute; inset: 12px; pointer-events: none; z-index: 2; }
.frame-corners::before, .frame-corners::after { content: ''; position: absolute; width: 20px; height: 20px; border: 2px solid var(--accent-cyan); }
.frame-corners::before { top: 0; left: 0; border-right: none; border-bottom: none; }
.frame-corners::after { bottom: 0; right: 0; border-left: none; border-top: none; }
.frame-meta { position: absolute; top: 16px; left: 20px; font-family: var(--font-mono); font-size: 0.6875rem; color: var(--text-cyan); letter-spacing: 0.12em; z-index: 3; }
.frame-meta-r { position: absolute; top: 16px; right: 20px; font-family: var(--font-mono); font-size: 0.6875rem; color: var(--text-tertiary); letter-spacing: 0.08em; z-index: 3; }

/* PROBLEM */
.problem-section { background: var(--bg-base); border-top: 1px solid var(--border-subtle); }
.problem-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 2.5rem; }
@media (max-width: 768px) { .problem-grid { grid-template-columns: 1fr; } }
.problem-card { background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: 12px; padding: 1.5rem; border-left: 3px solid var(--problem-color, var(--accent-red)); transition: all 0.3s; }
.problem-card:hover { transform: translateY(-2px); border-color: var(--border-strong); box-shadow: var(--shadow-md); }
.problem-card[data-cat="red"] { --problem-color: var(--accent-red); }
.problem-card[data-cat="orange"] { --problem-color: var(--accent-orange); }
.problem-card[data-cat="warning"] { --problem-color: var(--accent-warning); }
.problem-card[data-cat="success"] { --problem-color: var(--accent-success); }
.problem-card h3 { font-size: 1.125rem; margin-bottom: 0.5rem; display: flex; align-items: center; gap: 0.625rem; }
.problem-card h3 svg { width: 20px; height: 20px; color: var(--problem-color); flex-shrink: 0; }
.problem-card p { color: var(--text-secondary); font-size: 0.9375rem; line-height: 1.6; }

/* PILLARS */
.pillars-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin-top: 3rem; }
@media (max-width: 900px) { .pillars-grid { grid-template-columns: 1fr; } }
.pillar-card { background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg-base) 100%); border: 1px solid var(--border-subtle); border-radius: 14px; padding: 2rem; transition: all 0.3s; }
.pillar-card:hover { border-color: var(--border-strong); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.pillar-num { font-family: var(--font-mono); font-size: 0.75rem; color: var(--accent-cyan); letter-spacing: 0.16em; margin-bottom: 1rem; display: flex; align-items: center; gap: 0.625rem; }
.pillar-num::before { content: ''; width: 32px; height: 1px; background: var(--accent-cyan); }
.pillar-icon { width: 56px; height: 56px; background: rgba(64,200,224,0.08); border: 1px solid var(--border-strong); border-radius: 12px; display: grid; place-items: center; color: var(--accent-cyan); margin-bottom: 1rem; }
.pillar-icon svg { width: 28px; height: 28px; }
.pillar-card h3 { font-size: 1.25rem; margin-bottom: 0.625rem; }
.pillar-card p { color: var(--text-secondary); font-size: 0.9375rem; line-height: 1.6; }
.pillar-stat { margin-top: 1.25rem; padding-top: 1rem; border-top: 1px solid var(--border-subtle); font-family: var(--font-mono); font-size: 0.8125rem; color: var(--text-tertiary); }
.pillar-stat strong { color: var(--text-cyan); font-weight: 600; }

/* PROCESS STEPS (with images) */
.process-section { background: var(--bg-deep); }
.process-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1rem; margin-top: 3rem; }
@media (max-width: 1100px) { .process-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 600px) { .process-grid { grid-template-columns: repeat(2, 1fr); } }
.process-step { background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: 12px; padding: 1.25rem; transition: all 0.3s; position: relative; }
.process-step:hover { border-color: var(--border-strong); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.process-step-num { font-family: var(--font-mono); font-size: 0.6875rem; color: var(--accent-cyan); letter-spacing: 0.16em; margin-bottom: 0.75rem; }
.process-step-img { aspect-ratio: 1; background: linear-gradient(135deg, #1a3551, #0F1E33); border: 1px solid var(--border-subtle); border-radius: 10px; display: grid; place-items: center; margin-bottom: 1rem; overflow: hidden; position: relative; }
.process-step-img::after { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at center, rgba(255,255,255,0.06) 0%, transparent 70%); }
.process-step-img img { max-width: 70%; max-height: 70%; width: auto; height: auto; z-index: 1; position: relative; filter: drop-shadow(0 4px 12px rgba(0,0,0,0.4)); }
.process-step h4 { font-size: 0.9375rem; margin-bottom: 0.4rem; line-height: 1.3; }
.process-step p { color: var(--text-tertiary); font-size: 0.8125rem; line-height: 1.5; }

/* FEATURES GALLERY (for SHUNT, FOODIE II) */
.features-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin-top: 3rem; }
@media (max-width: 900px) { .features-gallery { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .features-gallery { grid-template-columns: 1fr; } }
.feature-item { background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: 12px; overflow: hidden; transition: all 0.3s; }
.feature-item:hover { border-color: var(--border-strong); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.feature-img { aspect-ratio: 4/3; background: linear-gradient(135deg, #1a3551, #0F1E33); display: grid; place-items: center; overflow: hidden; position: relative; }
.feature-img::after { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at center, rgba(255,255,255,0.08) 0%, transparent 70%); }
.feature-img img { max-width: 75%; max-height: 75%; width: auto; height: auto; z-index: 1; position: relative; filter: drop-shadow(0 8px 16px rgba(0,0,0,0.4)); }
.feature-content { padding: 1.25rem 1.5rem; }
.feature-tag { font-family: var(--font-mono); font-size: 0.6875rem; color: var(--text-cyan); letter-spacing: 0.16em; text-transform: uppercase; margin-bottom: 0.5rem; }
.feature-content h4 { font-size: 1.0625rem; margin-bottom: 0.4rem; }
.feature-content p { color: var(--text-secondary); font-size: 0.875rem; line-height: 1.55; }

/* BEFORE/AFTER */
.ba-section { background: var(--bg-base); }
.ba-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-top: 2.5rem; }
@media (max-width: 768px) { .ba-grid { grid-template-columns: 1fr; } }
.ba-card { background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: 14px; overflow: hidden; position: relative; transition: all 0.3s; }
.ba-card:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.ba-label { position: absolute; top: 1rem; left: 1rem; padding: 0.4rem 0.875rem; font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.16em; text-transform: uppercase; border-radius: 6px; z-index: 2; }
.ba-label.before { background: rgba(248,113,113,0.15); color: #FCA5A5; border: 1px solid rgba(248,113,113,0.3); }
.ba-label.after { background: rgba(52,211,153,0.15); color: #6EE7B7; border: 1px solid rgba(52,211,153,0.3); }
.ba-img { aspect-ratio: 4/3; overflow: hidden; background: #000; }
.ba-img img { width: 100%; height: 100%; object-fit: cover; }
.ba-caption { padding: 1.25rem 1.5rem; color: var(--text-secondary); font-size: 0.875rem; border-top: 1px solid var(--border-subtle); }
.ba-caption strong { color: var(--text-primary); display: block; margin-bottom: 0.25rem; }

/* SPEC TABLE */
.spec-section { background: var(--bg-deep); }
.spec-table-wrapper { margin-top: 2.5rem; background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: 12px; overflow: hidden; }
.spec-row { display: grid; grid-template-columns: 1fr 1.5fr; gap: 1.5rem; padding: 1.125rem 1.5rem; border-bottom: 1px solid var(--border-subtle); font-size: 0.9375rem; transition: background 0.2s; }
.spec-row:hover { background: rgba(255,255,255,0.02); }
.spec-row:last-child { border-bottom: none; }
.spec-row.group { background: rgba(64,200,224,0.04); grid-template-columns: 1fr; font-family: var(--font-mono); font-size: 0.6875rem; color: var(--text-cyan); letter-spacing: 0.16em; text-transform: uppercase; padding: 0.875rem 1.5rem; }
.spec-key { color: var(--text-secondary); font-weight: 500; }
.spec-val { font-family: var(--font-mono); color: var(--text-primary); font-weight: 500; }

/* APPLICATION FIT */
.app-fit-section { background: var(--bg-base); }
.app-fit-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 2.5rem; }
@media (max-width: 768px) { .app-fit-grid { grid-template-columns: 1fr; } }
.app-fit-card { background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: 12px; padding: 1.5rem; }
.app-fit-card h4 { font-size: 1rem; margin-bottom: 1rem; display: flex; align-items: center; gap: 0.625rem; }
.app-fit-card h4 svg { width: 20px; height: 20px; color: var(--accent-cyan); }
.app-tag-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.app-tag { padding: 0.4rem 0.75rem; background: rgba(64,200,224,0.06); border: 1px solid var(--border-strong); border-radius: 6px; font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-cyan-soft); }
.app-tag.muted { background: rgba(255,255,255,0.02); border-color: var(--border-subtle); color: var(--text-tertiary); }

/* COMPARISON */
.compare-wrapper { margin-top: 2.5rem; background: var(--bg-elevated); border: 1px solid var(--border-strong); border-radius: 14px; overflow: hidden; }
.compare-head { display: grid; grid-template-columns: 1.2fr 1fr 1fr; background: rgba(64,200,224,0.04); padding: 1rem 1.5rem; border-bottom: 1px solid var(--border-strong); font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.14em; text-transform: uppercase; }
.compare-head div:nth-child(1), .compare-head div:nth-child(2) { color: var(--text-tertiary); }
.compare-head div:nth-child(3) { color: var(--text-cyan); }
.compare-row { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 1rem; padding: 1rem 1.5rem; border-bottom: 1px solid var(--border-subtle); font-size: 0.875rem; align-items: center; }
.compare-row:last-child { border-bottom: none; }
.compare-feature { color: var(--text-secondary); font-weight: 500; }
.compare-bad, .compare-good { display: flex; align-items: flex-start; gap: 0.5rem; }
.compare-bad svg, .compare-good svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 3px; }
.compare-bad svg { color: var(--accent-red); }
.compare-good svg { color: var(--accent-success); }
.compare-bad { color: var(--text-tertiary); }
.compare-good { color: var(--text-primary); }
@media (max-width: 700px) { .compare-head, .compare-row { grid-template-columns: 1fr; gap: 0.5rem; } .compare-feature { font-weight: 700; color: var(--text-primary); margin-top: 0.5rem; } }

/* FAQ */
.faq-section { background: var(--bg-deep); }
.faq-list { margin-top: 2.5rem; display: flex; flex-direction: column; gap: 0.75rem; max-width: 880px; }
.faq-item { background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: 10px; overflow: hidden; transition: border-color 0.2s; }
.faq-item.open { border-color: var(--border-strong); }
.faq-q { width: 100%; padding: 1.25rem 1.5rem; text-align: left; display: flex; justify-content: space-between; align-items: center; gap: 1rem; font-size: 1rem; font-weight: 500; cursor: pointer; transition: color 0.2s; }
.faq-q:hover { color: var(--text-cyan); }
.faq-icon { flex-shrink: 0; width: 24px; height: 24px; border-radius: 50%; border: 1px solid var(--border-strong); display: grid; place-items: center; transition: transform 0.3s; color: var(--accent-cyan); }
.faq-icon svg { width: 12px; height: 12px; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s; }
.faq-item.open .faq-a { max-height: 800px; }
.faq-a-inner { padding: 0 1.5rem 1.25rem; color: var(--text-secondary); font-size: 0.9375rem; line-height: 1.7; border-top: 1px solid var(--border-subtle); padding-top: 1.25rem; }
.faq-a-inner strong { color: var(--text-primary); }
.faq-a-inner a { color: var(--text-cyan); }

/* CROSS-SELL */
.cross-sell { background: linear-gradient(135deg, var(--bg-base) 0%, var(--bg-elevated) 100%); }
.cross-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-top: 2.5rem; }
@media (max-width: 768px) { .cross-grid { grid-template-columns: 1fr; } }
.cross-card { background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: 14px; padding: 2rem; display: flex; flex-direction: column; transition: all 0.3s; }
.cross-card:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.cross-card .tag { font-family: var(--font-mono); font-size: 0.6875rem; color: var(--text-cyan); letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 0.625rem; }
.cross-card h3 { font-size: 1.5rem; margin-bottom: 0.5rem; display: flex; align-items: baseline; gap: 0.625rem; flex-wrap: wrap; }
.cross-card h3 small { font-family: var(--font-mono); font-size: 0.75rem; font-weight: 400; color: var(--text-tertiary); }
.cross-card p { color: var(--text-secondary); font-size: 0.9375rem; line-height: 1.6; margin-bottom: 1.25rem; flex-grow: 1; }
.cross-link { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--text-cyan); font-weight: 600; font-size: 0.875rem; transition: gap 0.2s; }
.cross-link:hover { gap: 0.75rem; }
.cross-link svg { width: 14px; height: 14px; }

/* FINAL CTA */
.final-cta { background: linear-gradient(135deg, var(--bg-base) 0%, var(--bg-elevated) 100%); text-align: center; border-top: 1px solid var(--border-subtle); }
.final-cta h2 { font-size: clamp(1.875rem, 4vw, 2.5rem); margin-bottom: 1rem; max-width: 620px; margin-left: auto; margin-right: auto; }
.final-cta p { color: var(--text-secondary); font-size: 1rem; margin-bottom: 2rem; max-width: 540px; margin-left: auto; margin-right: auto; }
.final-cta-buttons { display: flex; gap: 0.875rem; justify-content: center; flex-wrap: wrap; }

/* FOOTER */
footer { background: #06101F; padding: 3rem 0 2rem; border-top: 1px solid var(--border-subtle); }
.footer-bottom { display: flex; justify-content: space-between; gap: 1.25rem; flex-wrap: wrap; font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-tertiary); letter-spacing: 0.04em; }
.footer-bottom a { color: var(--text-secondary); transition: color 0.2s; }
.footer-bottom a:hover { color: var(--text-cyan); }

/* WhatsApp */
.wa-float { position: fixed; bottom: 24px; right: 24px; width: 56px; height: 56px; background: #25D366; border-radius: 50%; display: grid; place-items: center; box-shadow: 0 12px 28px rgba(37,211,102,0.4); z-index: 50; transition: transform 0.2s; }
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 30px; height: 30px; color: white; }

/* ============================================
   LOGO IN HEADER (shared across all pages)
   ============================================ */
.nav .logo {
  display: flex;
  align-items: center;
  gap: 0;
}
.nav .logo img.logo-img {
  height: 44px;
  width: auto;
  margin-right: 0.875rem;
}
.nav .logo .logo-text {
  border-left: 1px solid var(--border-subtle);
  padding-left: 0.875rem;
  display: flex;
  flex-direction: column;
  line-height: 1;
  gap: 2px;
}
.nav .logo .logo-text strong {
  font-family: var(--font-display);
  font-size: 0.875rem;
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.2;
}
.nav .logo .logo-text small {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--text-cyan);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 400;
}

/* ============================================
   NOTEBOOKLM-STYLE PREMIUM ENHANCEMENTS
   ============================================ */

/* Body background — circuit pattern + radial glows */
body {
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(64,200,224,0.10) 0%, transparent 50%),
    radial-gradient(ellipse 80% 30% at 50% 120%, rgba(14,165,233,0.05) 0%, transparent 50%),
    var(--bg-deep);
  background-attachment: fixed;
}

/* Subtle circuit grid pattern overlay (only on body) */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(64,200,224,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(64,200,224,0.015) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* Tüm content body::before üstünde olmalı */
body > * { position: relative; z-index: 1; }

/* SHOWCASE IMAGE FRAMES (NotebookLM görselleri için ileri seviye çerçeve) */
.showcase-frame {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  box-shadow:
    0 1px 0 rgba(64,200,224,0.1) inset,
    0 0 60px rgba(64,200,224,0.08),
    var(--shadow-lg);
  transition: all 0.4s var(--ease-out);
}
.showcase-frame::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 20px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(64,200,224,0.4) 0%, transparent 30%, transparent 70%, rgba(64,200,224,0.2) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: 2;
}
.showcase-frame:hover {
  transform: translateY(-3px);
  box-shadow:
    0 1px 0 rgba(64,200,224,0.15) inset,
    0 0 80px rgba(64,200,224,0.12),
    var(--shadow-lg);
}
.showcase-frame img {
  width: 100%;
  height: auto;
  display: block;
}

/* CORNER ACCENTS for showcase frames (4 köşede HUD-tarzı süslemeler) */
.showcase-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    /* Sol üst köşe */
    linear-gradient(135deg, var(--accent-cyan) 0 12px, transparent 12px) top left / 24px 2px no-repeat,
    linear-gradient(135deg, var(--accent-cyan) 0 12px, transparent 12px) top left / 2px 24px no-repeat,
    /* Sağ üst */
    linear-gradient(225deg, var(--accent-cyan) 0 12px, transparent 12px) top right / 24px 2px no-repeat,
    linear-gradient(225deg, var(--accent-cyan) 0 12px, transparent 12px) top right / 2px 24px no-repeat,
    /* Sol alt */
    linear-gradient(45deg, var(--accent-cyan) 0 12px, transparent 12px) bottom left / 24px 2px no-repeat,
    linear-gradient(45deg, var(--accent-cyan) 0 12px, transparent 12px) bottom left / 2px 24px no-repeat,
    /* Sağ alt */
    linear-gradient(315deg, var(--accent-cyan) 0 12px, transparent 12px) bottom right / 24px 2px no-repeat,
    linear-gradient(315deg, var(--accent-cyan) 0 12px, transparent 12px) bottom right / 2px 24px no-repeat;
  opacity: 0.6;
  z-index: 3;
}

/* SHOWCASE SECTION (NotebookLM görseli vurgulayan bölümler için) */
.showcase-section {
  padding: 6rem 0;
  position: relative;
  background: var(--bg-deep);
}
.showcase-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 50%, rgba(64,200,224,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.showcase-section .container {
  position: relative;
  z-index: 1;
  text-align: center;
}
.showcase-section .showcase-frame {
  max-width: 1100px;
  margin: 3rem auto 0;
}

/* SECTION DIVIDER (cyan line accent) */
.section-divider {
  display: block;
  width: 80px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  margin: 0 auto 2rem;
}

/* HUD-style accent corners on cards */
.hud-card {
  position: relative;
  background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg-base) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 1.75rem;
  transition: all 0.3s var(--ease-out);
}
.hud-card::before,
.hud-card::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid var(--accent-cyan);
  opacity: 0.5;
  transition: opacity 0.3s;
}
.hud-card::before {
  top: -1px; left: -1px;
  border-right: none; border-bottom: none;
  border-top-left-radius: 14px;
}
.hud-card::after {
  bottom: -1px; right: -1px;
  border-left: none; border-top: none;
  border-bottom-right-radius: 14px;
}
.hud-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: 0 12px 32px rgba(64,200,224,0.08);
}
.hud-card:hover::before,
.hud-card:hover::after {
  opacity: 1;
}

/* PULSING DOT (animated indicator) */
.pulse-dot {
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--accent-cyan);
  border-radius: 50%;
  position: relative;
  margin-right: 0.5rem;
}
.pulse-dot::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: var(--accent-cyan);
  opacity: 0.4;
  animation: pulse-ring 2s ease-out infinite;
}
@keyframes pulse-ring {
  0% { transform: scale(0.8); opacity: 0.6; }
  100% { transform: scale(2); opacity: 0; }
}

/* SECTION TRANSITIONS — gradient fades between sections */
.fade-top {
  position: relative;
}
.fade-top::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 100px;
  background: linear-gradient(180deg, var(--bg-deep) 0%, transparent 100%);
  pointer-events: none;
  z-index: 1;
}

/* Premium showcase header (eyebrow + title + lead, centered) */
.showcase-header {
  max-width: 720px;
  margin: 0 auto 3rem;
  text-align: center;
}
.showcase-header .section-eyebrow {
  margin-left: auto;
  margin-right: auto;
}
.showcase-header .section-eyebrow::before {
  display: none;
}
.showcase-header h2 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  margin-bottom: 1.25rem;
}
.showcase-header p {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Glow text effect for hero/showcase titles */
.glow-text {
  text-shadow:
    0 0 20px rgba(64,200,224,0.3),
    0 0 40px rgba(64,200,224,0.15);
}

/* Fade-in animation on scroll (CSS-only, IntersectionObserver gerekirse JS eklenir) */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.animate-in {
  animation: fadeInUp 0.8s var(--ease-out) both;
}

/* Stagger animation delays for grid items */
.stagger > *:nth-child(1) { animation-delay: 0s; }
.stagger > *:nth-child(2) { animation-delay: 0.1s; }
.stagger > *:nth-child(3) { animation-delay: 0.2s; }
.stagger > *:nth-child(4) { animation-delay: 0.3s; }
.stagger > *:nth-child(5) { animation-delay: 0.4s; }
.stagger > *:nth-child(6) { animation-delay: 0.5s; }

/* Scroll cue (down arrow at hero bottom) */
.scroll-cue {
  position: absolute;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%);
  color: var(--text-cyan);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0.7;
  z-index: 5;
  animation: bounce-soft 2.5s ease-in-out infinite;
}
.scroll-cue::after {
  content: '↓';
  font-size: 1.25rem;
  opacity: 0.7;
}
@keyframes bounce-soft {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 8px); }
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-subtle);
  padding: 4rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 2rem;
}
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; } }
.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-cyan);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.625rem; }
.footer-col a { color: var(--text-secondary); font-size: 0.875rem; transition: color 0.2s; }
.footer-col a:hover { color: var(--text-primary); }