:root {
  --bg-primary:     #020617;
  --bg-secondary:   #0f172a;
  --bg-surface:     #111c33;
  --text-primary:   #f8fafc;
  --text-secondary: #cbd5e1;
  --accent-blue:    #3c79ff;
  --accent-cyan:    #00d1ff;
  --accent-purple:  #6a3de8;
  --gradient:       linear-gradient(135deg, #00d1ff 0%, #3c79ff 60%, #6a3de8 100%);
  --border:         rgba(148,163,184,0.15);
  --shadow:         0 20px 50px rgba(2,6,23,0.55);
  --font:           'Inter', system-ui, -apple-system, sans-serif;
  --radius:         20px;
}

/* ── AÇIK TEMA ─────────────────────────────────── */
body.light {
  --bg-primary:     #d6e8f7;
  --bg-secondary:   #c8dff2;
  --bg-surface:     #deeef9;
  --text-primary:   #0f172a;
  --text-secondary: #475569;
  --border:         rgba(15,23,42,0.1);
  --shadow:         0 20px 50px rgba(15,23,42,0.1);
}

body.light { background: var(--bg-primary); color: var(--text-secondary); }

body.light .navbar {
  background: rgba(15,40,80,0.95);
  border-bottom-color: rgba(255,255,255,0.08);
}
body.light .navbar.has-shadow { box-shadow: 0 10px 30px rgba(15,23,42,0.08); }

body.light .hero-bg-glow {
  background: radial-gradient(ellipse at center,
    rgba(60,121,255,0.1) 0%,
    rgba(0,209,255,0.05) 40%,
    transparent 70%);
}

body.light .badge {
  background: rgba(60,121,255,0.08);
  color: #3c79ff;
  border-color: rgba(60,121,255,0.2);
}

body.light .eyebrow {
  background: #ffffff;
  color: #475569;
  border-color: rgba(15,23,42,0.1);
}

body.light .btn-secondary {
  background: #ffffff;
  color: #0f172a;
  border-color: rgba(15,23,42,0.15);
}
body.light .btn-secondary:hover { border-color: #3c79ff; }

body.light .about {
  background: linear-gradient(180deg, rgba(241,245,249,0.8) 0%, transparent 100%);
}
body.light .about-card,
body.light .product-card,
body.light .signup-form {
  background: #deeef9;
  border-color: rgba(15,23,42,0.08);
  box-shadow: 0 4px 20px rgba(15,23,42,0.06);
}
body.light .about-card:hover,
body.light .product-card:hover {
  border-color: rgba(60,121,255,0.3);
  box-shadow: 0 8px 30px rgba(60,121,255,0.1);
}

body.light .product-icon {
  background: rgba(60,121,255,0.08);
  border-color: rgba(60,121,255,0.2);
  color: #3c79ff;
}

body.light .products {
  background: rgba(241,245,249,0.5);
}

body.light .section-header h2,
body.light .about-content h2,
body.light .signup-content h2,
body.light .signup-form h3,
body.light .product-card h3,
body.light .about-card h3 {
  color: #0f172a;
}

body.light .form-group input,
body.light .form-group select {
  background: #f8fafc;
  border-color: rgba(15,23,42,0.15);
  color: #0f172a;
}
body.light .form-group input::placeholder { color: rgba(15,23,42,0.3); }
body.light .form-group input:focus,
body.light .form-group select:focus {
  border-color: #3c79ff;
  box-shadow: 0 0 0 3px rgba(60,121,255,0.12);
}
body.light .form-group select {
  background-color: #f8fafc;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23475569' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
}
body.light .form-group select option { background: #ffffff; color: #0f172a; }
body.light .form-group label { color: #64748b; }

body.light .signup-perks li { color: #475569; }

body.light .cyber-card {
  background: rgba(255,255,255,0.97);
  border-color: rgba(15,23,42,0.1);
  box-shadow: 0 8px 24px rgba(15,23,42,0.1);
  color: #0f172a;
}

body.light .ring-1 { border-color: rgba(60,121,255,0.2); }
body.light .ring-2 { border-color: rgba(0,209,255,0.12); }
body.light .ring-3 { border-color: rgba(106,61,232,0.08); }

body.light .footer {
  background: #c8dff2;
  border-top-color: rgba(15,23,42,0.08);
}
body.light .footer-copy { color: #94a3b8; }
body.light .nav-toggle span { background: #0f172a; }
body.light .nav-links { background: rgba(248,250,252,0.97); }

body.light .section::before { opacity: 0.3; }

body.light .signup {
  background: linear-gradient(180deg, transparent 0%, rgba(241,245,249,0.6) 100%);
}

/* ══════════════════════════════════════════════
   AÇIK TEMA — KAPSAMLI DÜZELTMELER
   ══════════════════════════════════════════════ */

/* Genel yazı renkleri */
body.light h1, body.light h2, body.light h3, body.light h4 { color: #0f172a; }

/* Hero */
body.light .hero-content h1    { color: #0f172a; }
body.light .hero-content > p   { color: #475569; }
body.light .stat span          { color: #64748b; }
body.light .stat-divider       { background: rgba(15,23,42,0.15); }

/* Hero arka plan */
body.light .hero {
  background: #d6e8f7;
}

/* Cyber görsel — halkaları daha belirgin yap */
body.light .ring-1 { border-color: rgba(60,121,255,0.35); border-width: 1.5px; }
body.light .ring-2 { border-color: rgba(0,209,255,0.25);  border-width: 1.5px; }
body.light .ring-3 { border-color: rgba(106,61,232,0.2);  border-width: 1.5px; }

/* Cyber kartlar — koyu arka planı açık yap */
body.light .cyber-card {
  background: #deeef9;
  border-color: rgba(60,121,255,0.2);
  box-shadow: 0 8px 24px rgba(60,121,255,0.12);
  color: #0f172a;
}

/* Devre çizgileri — açık arka planda daha koyu */
body.light .c1, body.light .c2 {
  background: linear-gradient(90deg, transparent, rgba(60,121,255,0.6), transparent);
}
body.light .c3 {
  background: linear-gradient(180deg, transparent, rgba(60,121,255,0.6), transparent);
}
body.light .c4 {
  background: linear-gradient(180deg, transparent, rgba(106,61,232,0.6), transparent);
}

/* Shield filter — açık arka planda daha az parlama */
body.light .shield-icon {
  filter: drop-shadow(0 0 16px rgba(60,121,255,0.4));
}

/* Section arka planları */
body.light .about {
  background: linear-gradient(180deg, rgba(240,247,255,0.8) 0%, transparent 100%);
}
body.light .products {
  background: rgba(241,245,249,0.7);
}
body.light .section::before { opacity: 0.15; }

/* Kartlar */
body.light .about-card {
  background: #deeef9;
  border-color: rgba(15,23,42,0.08);
  box-shadow: 0 4px 20px rgba(15,23,42,0.06);
}
body.light .about-card:hover  { border-color: rgba(60,121,255,0.3); }
body.light .about-card h3     { color: #0f172a; }
body.light .about-card p      { color: #64748b; }

body.light .product-card {
  background: #deeef9;
  border-color: rgba(15,23,42,0.08);
  box-shadow: 0 4px 20px rgba(15,23,42,0.06);
}
body.light .product-card:hover { border-color: rgba(60,121,255,0.3); box-shadow: 0 8px 30px rgba(60,121,255,0.1); }
body.light .product-card h3   { color: #0f172a; }
body.light .product-card p    { color: #64748b; }
body.light .product-card::before {
  background: linear-gradient(135deg, rgba(60,121,255,0.06), rgba(0,209,255,0.03));
}

body.light .product-icon {
  background: rgba(60,121,255,0.08);
  border-color: rgba(60,121,255,0.25);
  color: #3c79ff;
}

/* Section başlıkları */
body.light .section-header h2  { color: #0f172a; }
body.light .section-header p   { color: #475569; }

/* Hakkımızda */
body.light .about-content h2   { color: #0f172a; }
body.light .about-content p    { color: #475569; }
body.light .about-content p strong { color: #0f172a; }

/* Kayıt ol */
body.light .signup {
  background: linear-gradient(180deg, transparent 0%, rgba(240,247,255,0.6) 100%);
}
body.light .signup-content h2  { color: #0f172a; }
body.light .signup-content > p { color: #475569; }
body.light .signup-perks li    { color: #475569; }

body.light .signup-form {
  background: #deeef9;
  border-color: rgba(15,23,42,0.1);
  box-shadow: 0 8px 40px rgba(15,23,42,0.08);
}
body.light .signup-form h3     { color: #0f172a; }
body.light .form-group label   { color: #64748b; }
body.light .form-group input,
body.light .form-group select  {
  background: #cce0f0;
  border-color: rgba(15,23,42,0.15);
  color: #0f172a;
}
body.light .form-group input::placeholder { color: rgba(15,23,42,0.3); }
body.light .form-group input:focus,
body.light .form-group select:focus {
  border-color: #3c79ff;
  box-shadow: 0 0 0 3px rgba(60,121,255,0.12);
}
body.light .form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23475569' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
}
body.light .form-group select option { background: #ffffff; color: #0f172a; }
body.light .form-note { color: #94a3b8; }

/* Nav */
body.light .nav-links a       { color: rgba(255,255,255,0.85); }
body.light .nav-links a:hover { color: #ffffff; }
body.light .nav-links {
  background: rgba(15,40,80,0.97);
}
body.light .nav-toggle span   { background: #ffffff; }

/* Footer */
body.light .footer {
  background: #c8dff2;
  border-top-color: rgba(15,23,42,0.08);
}
body.light .footer-copy        { color: #94a3b8; }
body.light .footer-links a,
body.light .footer-social a    { color: #64748b; }
body.light .footer-links a:hover,
body.light .footer-social a:hover { color: #0f172a; }

/* Butonlar */
body.light .btn-secondary {
  background: #ffffff;
  color: #0f172a;
  border-color: rgba(15,23,42,0.2);
}
body.light .btn-secondary:hover { border-color: #3c79ff; color: #3c79ff; }

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-family: var(--font);
  line-height: 1.65;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
a:hover, a:focus { color: var(--text-primary); }
img, svg { max-width: 100%; height: auto; display: block; }

.container {
  width: min(1140px, 92vw);
  margin: 0 auto;
}

/* ── GRADIENT TEXT ─────────────────────────────── */
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── BADGE / EYEBROW ───────────────────────────── */
.badge, .eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 1rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.4rem;
}

.badge {
  background: rgba(0,209,255,0.1);
  color: var(--accent-cyan);
  border: 1px solid rgba(0,209,255,0.3);
}

.eyebrow {
  background: rgba(15,23,42,0.9);
  color: rgba(226,232,240,0.85);
  border: 1px solid var(--border);
}

/* ── BUTTONS ───────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.8rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: none;
  transition: transform 0.25s, box-shadow 0.25s, opacity 0.25s;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 8px 28px rgba(60,121,255,0.3);
}
.btn-primary:hover, .btn-primary:focus {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px rgba(0,209,255,0.4);
  color: #fff;
}

.btn-secondary {
  background: rgba(15,23,42,0.7);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover, .btn-secondary:focus {
  transform: translateY(-2px);
  border-color: rgba(60,121,255,0.5);
  color: var(--text-primary);
}

.btn-full { width: 100%; }

/* ── NAVBAR ────────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(2,6,23,0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(148,163,184,0.07);
  transition: box-shadow 0.3s;
}

.navbar.has-shadow { box-shadow: 0 10px 30px rgba(2,6,23,0.7); }

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  gap: 1.5rem;
}

.logo img { height: 52px; width: auto; }

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -5px;
  width: 100%; height: 1.5px;
  background: var(--gradient);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s;
}
.nav-links a:hover::after, .nav-links a:focus::after {
  transform: scaleX(1);
  transform-origin: left;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(148,163,184,0.1);
  border: 1px solid var(--border);
  cursor: pointer;
  font-size: 1.1rem;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
  flex-shrink: 0;
}
.theme-toggle:hover {
  background: rgba(60,121,255,0.15);
  border-color: rgba(60,121,255,0.4);
  transform: rotate(20deg);
}
body.light .theme-toggle { background: rgba(15,23,42,0.06); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text-primary);
  transform-origin: center;
  transition: transform 0.3s, opacity 0.3s;
}
.nav-toggle.is-active span:first-child { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-active span:last-child  { transform: translateY(-7px) rotate(-45deg); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }

/* ── SECTIONS ──────────────────────────────────── */
.section {
  padding: clamp(5rem,10vw,7rem) 0;
  position: relative;
}

.section-header {
  max-width: 680px;
  margin-bottom: 3.5rem;
}
.section-header h2 {
  font-size: clamp(2rem, 3.5vw, 2.7rem);
  color: var(--text-primary);
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
}
.section-header p {
  font-size: 1.05rem;
  color: rgba(203,213,225,0.85);
}

/* ── HERO ──────────────────────────────────────── */
.hero {
  padding: clamp(6rem,12vw,9rem) 0 clamp(5rem,8vw,7rem);
  position: relative;
  overflow: hidden;
}

.hero-bg-glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 700px;
  background: radial-gradient(ellipse at center,
    rgba(60,121,255,0.18) 0%,
    rgba(0,209,255,0.08) 40%,
    transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  font-size: clamp(2.6rem, 5vw, 3.8rem);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 1.2rem;
}

.hero-content > p {
  max-width: 500px;
  font-size: 1.05rem;
  color: rgba(226,232,240,0.8);
  margin-bottom: 2.2rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.8rem;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.stat { text-align: left; }
.stat strong {
  display: block;
  font-size: 1.6rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}
.stat span {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(148,163,184,0.8);
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── CYBER VISUAL ──────────────────────────────── */
.cyber-visual {
  position: relative;
  width: 520px;
  height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Hex grid arka plan */
.hex-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hex {
  position: absolute;
  width: 60px; height: 68px;
  background: rgba(60,121,255,0.05);
  border: 1px solid rgba(60,121,255,0.12);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  animation: hex-pulse 4s ease-in-out infinite;
}
.h1 { top:  5%; left: 10%; animation-delay: 0s; }
.h2 { top:  5%; left: 65%; animation-delay: 0.5s; width:50px; height:58px; opacity:0.6; }
.h3 { top: 25%; left: 82%; animation-delay: 1s; }
.h4 { top: 60%; left: 75%; animation-delay: 1.5s; width:45px; height:52px; opacity:0.5; }
.h5 { top: 70%; left: 12%; animation-delay: 2s; }
.h6 { top: 42%; left:  2%; animation-delay: 0.8s; width:48px; height:55px; opacity:0.6; }
.h7 { top: 15%; left: 38%; animation-delay: 1.2s; width:40px; height:46px; opacity:0.4; }
.h8 { top: 72%; left: 42%; animation-delay: 2.4s; width:44px; height:50px; opacity:0.5; }
.h9 { top: 45%; left: 88%; animation-delay: 0.3s; width:36px; height:42px; opacity:0.4; }

@keyframes hex-pulse {
  0%, 100% { opacity: 0.3; }
  50%       { opacity: 0.9; }
}

/* Parlayan halkalar */
.ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid transparent;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}
.ring-1 {
  width: 310px; height: 310px;
  border-color: rgba(0,209,255,0.5);
  border-width: 1.5px;
  animation: pulse-ring 3.5s ease-in-out infinite;
}
.ring-2 {
  width: 390px; height: 390px;
  border-color: rgba(0,209,255,0.3);
  border-width: 1.5px;
  animation: pulse-ring 3.5s ease-in-out infinite 0.8s;
}
.ring-3 {
  width: 490px; height: 490px;
  border-color: rgba(0,209,255,0.15);
  border-width: 1px;
  animation: pulse-ring 3.5s ease-in-out infinite 1.6s;
}

@keyframes pulse-ring {
  0%, 100% { opacity: 0.35; transform: translate(-50%, -50%) scale(1); }
  50%       { opacity: 1;    transform: translate(-50%, -50%) scale(1.03); }
}

/* Ağ noktaları */
.net-node {
  position: absolute;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 12px var(--accent-cyan);
  animation: node-blink 2.5s ease-in-out infinite;
}
.nn1 { width:8px; height:8px; top:12%; left:20%; animation-delay:0s; }
.nn2 { width:6px; height:6px; top:20%; right:18%; animation-delay:0.6s; background:#3C79FF; box-shadow:0 0 10px #3C79FF; }
.nn3 { width:7px; height:7px; bottom:18%; right:22%; animation-delay:1.2s; }
.nn4 { width:5px; height:5px; bottom:15%; left:25%; animation-delay:1.8s; background:#6a3de8; box-shadow:0 0 8px #6a3de8; }
.nn5 { width:6px; height:6px; top:50%; left:8%; animation-delay:0.9s; }

@keyframes node-blink {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50%       { opacity: 1;   transform: scale(1.4); }
}

/* Kalkan */
.shield-icon {
  position: relative;
  z-index: 2;
  animation: float 5s ease-in-out infinite;
  filter: drop-shadow(0 0 30px rgba(60,121,255,0.6)) drop-shadow(0 0 60px rgba(0,209,255,0.2));
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-14px); }
}

/* Yüzen kartlar */
.cyber-card {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  background: rgba(10,18,45,0.92);
  border: 1px solid rgba(60,121,255,0.3);
  border-radius: 14px;
  padding: 0.7rem 1.1rem;
  white-space: nowrap;
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 32px rgba(2,6,23,0.5), inset 0 1px 0 rgba(255,255,255,0.05);
}
.cc-top    { top: 6%;     right: 2%; animation: float 5s ease-in-out infinite 0.4s; }
.cc-bottom { bottom: 8%;  left: -8%; animation: float 5s ease-in-out infinite 1.1s; }
.cc-left   { top: 46%;   left: -2%; animation: float 5s ease-in-out infinite 1.8s; }

.cc-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}
.cc-dot.green  { background: #22c55e; box-shadow: 0 0 10px #22c55e; }
.cc-dot.blue   { background: #00D1FF; box-shadow: 0 0 10px #00D1FF; }
.cc-dot.purple { background: #a78bfa; box-shadow: 0 0 10px #a78bfa; }

.cc-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.cc-text strong {
  font-size: 0.95rem;
  font-weight: 700;
  color: #f8fafc;
}
.cc-text span {
  font-size: 0.72rem;
  color: rgba(148,163,184,0.85);
  font-weight: 400;
}

/* Devre çizgileri */
.circuit {
  position: absolute;
  background: linear-gradient(90deg, transparent, rgba(0,209,255,0.6), transparent);
  border-radius: 2px;
}
.c1 { width: 70px; height: 1.5px; top: 22%; left: 2%;  transform: rotate(-25deg); }
.c2 { width: 50px; height: 1.5px; top: 68%; right: 3%; transform: rotate(18deg); }
.c3 { width: 1.5px; height: 60px; top: 8%;  left: 16%; background: linear-gradient(180deg, transparent, rgba(60,121,255,0.6), transparent); }
.c4 { width: 1.5px; height: 50px; bottom:6%; right:16%; background: linear-gradient(180deg, transparent, rgba(106,61,232,0.6), transparent); }

/* ── SALDIRI TEHDİTLERİ ────────────────────────── */
.threat {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  z-index: 4;
}

/* Tehdit konumları */
.t1 { top: 4%;   left: 4%; }
.t2 { top: 22%;  right: 0%; }
.t3 { bottom: 6%; left: 28%; }
.t4 { bottom: 2%; right: 4%; }

.threat-dot {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: radial-gradient(circle, #ff4444, #cc0000);
  box-shadow: 0 0 14px rgba(255,60,60,0.9), 0 0 28px rgba(255,60,60,0.4);
  animation: threat-pulse 1.4s ease-in-out infinite;
}

@keyframes threat-pulse {
  0%, 100% { transform: scale(1);   box-shadow: 0 0 10px rgba(255,60,60,0.8), 0 0 20px rgba(255,60,60,0.3); }
  50%       { transform: scale(1.3); box-shadow: 0 0 20px rgba(255,60,60,1),   0 0 40px rgba(255,60,60,0.5); }
}

.threat-label {
  font-size: 0.6rem;
  font-weight: 700;
  color: #ff6666;
  letter-spacing: 0.06em;
  text-shadow: 0 0 8px rgba(255,60,60,0.8);
  animation: threat-pulse 1.4s ease-in-out infinite;
}
.t1 .threat-label { animation-delay: 0s; }
.t2 .threat-label { animation-delay: 0.35s; }
.t3 .threat-label { animation-delay: 0.7s; }
.t4 .threat-label { animation-delay: 1.05s; }
.t2 .threat-dot { animation-delay: 0.35s; }
.t3 .threat-dot { animation-delay: 0.7s; }
.t4 .threat-dot { animation-delay: 1.05s; }

/* Lazer saldırı ışınları */
.threat-beam {
  position: absolute;
  height: 1.5px;
  background: linear-gradient(90deg, rgba(255,60,60,0.9), rgba(255,60,60,0));
  transform-origin: left center;
  animation: beam-fire 1.4s ease-in-out infinite;
}

.tb1 { width: 110px; top: 6px; left: 14px; transform: rotate(38deg); animation-delay: 0s; }
.tb2 { width: 120px; top: 6px; right: 14px; transform: rotate(148deg); transform-origin: right center;
       background: linear-gradient(270deg, rgba(255,60,60,0.9), rgba(255,60,60,0)); animation-delay: 0.35s; }
.tb3 { width: 115px; top: 6px; left: 14px; transform: rotate(-38deg); animation-delay: 0.7s; }
.tb4 { width: 120px; top: 6px; right: 14px; transform: rotate(-148deg); transform-origin: right center;
       background: linear-gradient(270deg, rgba(255,60,60,0.9), rgba(255,60,60,0)); animation-delay: 1.05s; }

@keyframes beam-fire {
  0%   { opacity: 0;   transform-origin: left center; }
  20%  { opacity: 1; }
  60%  { opacity: 0.8; }
  80%  { opacity: 0; }
  100% { opacity: 0; }
}
.tb2, .tb4 {
  animation-name: beam-fire-right;
}
@keyframes beam-fire-right {
  0%   { opacity: 0; }
  20%  { opacity: 1; }
  60%  { opacity: 0.8; }
  80%  { opacity: 0; }
  100% { opacity: 0; }
}

/* Çarpma / deflect efektleri */
.deflect {
  position: absolute;
  width: 18px; height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(0,209,255,0.9);
  box-shadow: 0 0 12px rgba(0,209,255,0.7);
  z-index: 5;
  animation: deflect-pop 1.4s ease-out infinite;
}
.d1 { top: 26%;  left: 22%; animation-delay: 0s; }
.d2 { top: 22%;  right: 22%; animation-delay: 0.35s; }
.d3 { bottom: 24%; left: 26%; animation-delay: 0.7s; }

@keyframes deflect-pop {
  0%   { transform: scale(0); opacity: 0; }
  30%  { transform: scale(1.2); opacity: 1; }
  60%  { transform: scale(1.6); opacity: 0.4; }
  100% { transform: scale(2); opacity: 0; }
}

/* Açık tema — tehditler */
body.light .threat-label { text-shadow: 0 0 6px rgba(200,0,0,0.5); color: #cc2222; }

/* Açık tema — cyber visual */
body.light .ring-1 { border-color: rgba(0,209,255,0.6); }
body.light .ring-2 { border-color: rgba(0,209,255,0.35); }
body.light .ring-3 { border-color: rgba(0,209,255,0.18); }
body.light .hex    { background: rgba(60,121,255,0.07); border-color: rgba(60,121,255,0.18); }
body.light .cyber-card {
  background: rgba(255,255,255,0.95);
  border-color: rgba(60,121,255,0.2);
  box-shadow: 0 8px 32px rgba(60,121,255,0.12);
}
body.light .cc-text strong { color: #0f172a; }
body.light .cc-text span   { color: #64748b; }
body.light .shield-icon {
  filter: drop-shadow(0 0 20px rgba(60,121,255,0.4)) drop-shadow(0 0 40px rgba(0,209,255,0.15));
}

/* ── ABOUT ─────────────────────────────────────── */
.about {
  background: linear-gradient(180deg, rgba(15,23,42,0.4) 0%, transparent 100%);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-content h2 {
  font-size: clamp(2rem, 3.2vw, 2.6rem);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.2rem;
}

.about-content p {
  color: rgba(203,213,225,0.85);
  margin-bottom: 1rem;
  font-size: 1rem;
}

.about-content p strong { color: var(--text-primary); }

.about-content .btn { margin-top: 1rem; }

.about-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

.about-card {
  background: rgba(15,23,42,0.75);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  transition: transform 0.3s, border-color 0.3s;
}

.about-card:hover { transform: translateY(-5px); border-color: rgba(60,121,255,0.4); }

.about-icon {
  font-size: 1.8rem;
  margin-bottom: 0.8rem;
  line-height: 1;
}

.about-card h3 {
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.about-card p {
  font-size: 0.88rem;
  color: rgba(203,213,225,0.75);
}

/* ── PRODUCTS ──────────────────────────────────── */
.products { background: rgba(15,23,42,0.25); }

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1.6rem;
}

.product-card {
  background: rgba(15,23,42,0.75);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.product-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(60,121,255,0.18), rgba(0,209,255,0.06));
  opacity: 0;
  transition: opacity 0.3s;
}

.product-card:hover {
  transform: translateY(-7px);
  border-color: rgba(60,121,255,0.45);
  box-shadow: 0 16px 40px rgba(2,6,23,0.6);
}
.product-card:hover::before { opacity: 1; }

.product-icon {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  border-radius: 14px;
  background: rgba(60,121,255,0.15);
  border: 1px solid rgba(60,121,255,0.35);
  color: var(--accent-cyan);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  margin-bottom: 1.2rem;
}

.product-card h3 {
  position: relative;
  z-index: 1;
  color: var(--text-primary);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.7rem;
  line-height: 1.3;
}

.product-card p {
  position: relative;
  z-index: 1;
  font-size: 0.9rem;
  color: rgba(203,213,225,0.78);
}

/* ── NAV HIGHLIGHT ─────────────────────────────── */
.nav-link-highlight {
  color: var(--accent-cyan) !important;
  font-weight: 600;
  position: relative;
}
.nav-link-highlight::before {
  content: '';
  position: absolute;
  left: -6px; top: 50%;
  transform: translateY(-50%);
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 6px var(--accent-cyan);
}
body.light .nav-link-highlight { color: #00aadd !important; }
body.light .nav-link-highlight::before { background: #00aadd; box-shadow: none; }

/* ── GAP ANALİZİ SEKSİYONU ──────────────────────── */
.gap-section {
  padding: clamp(5rem,10vw,7rem) 0;
}

.gap-inner {
  background: linear-gradient(135deg, rgba(60,121,255,0.12) 0%, rgba(106,61,232,0.12) 100%);
  border: 1px solid rgba(60,121,255,0.3);
  border-radius: 32px;
  padding: clamp(2.5rem, 5vw, 4rem);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.gap-inner::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 240px; height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,209,255,0.12), transparent 70%);
  pointer-events: none;
}

.gap-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.9rem;
  border-radius: 999px;
  background: rgba(0,209,255,0.15);
  border: 1px solid rgba(0,209,255,0.35);
  color: var(--accent-cyan);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.4rem;
}

.gap-inner h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.gap-inner > p {
  max-width: 600px;
  margin: 0 auto 2rem;
  font-size: 1.05rem;
  color: rgba(203,213,225,0.85);
}

.gap-features {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.2rem 2.5rem;
  margin-bottom: 2.4rem;
}

.gap-feature {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.92rem;
  font-weight: 500;
  color: rgba(226,232,240,0.9);
}

.gap-icon { font-size: 1.1rem; }

.btn-gap {
  font-size: 1rem;
  padding: 1rem 2.4rem;
  box-shadow: 0 12px 32px rgba(60,121,255,0.35);
}

/* Açık tema — gap */
body.light .gap-inner {
  background: linear-gradient(135deg, rgba(60,121,255,0.07) 0%, rgba(106,61,232,0.07) 100%);
  border-color: rgba(60,121,255,0.2);
}
body.light .gap-inner h2  { color: #0f172a; }
body.light .gap-inner > p { color: #475569; }
body.light .gap-feature   { color: #475569; }
body.light .gap-badge {
  background: rgba(60,121,255,0.1);
  border-color: rgba(60,121,255,0.25);
  color: #3c79ff;
}

/* ── SIGN UP ───────────────────────────────────── */
.signup {
  background: linear-gradient(180deg, transparent 0%, rgba(15,23,42,0.4) 100%);
}

.signup-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.signup-content h2 {
  font-size: clamp(2rem, 3.2vw, 2.6rem);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.2rem;
}

.signup-content > p {
  color: rgba(203,213,225,0.85);
  font-size: 1rem;
  margin-bottom: 2rem;
}

.signup-perks {
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.signup-perks li {
  font-size: 0.95rem;
  color: rgba(226,232,240,0.85);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.signup-form {
  background: rgba(15,23,42,0.85);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 2.4rem;
  display: grid;
  gap: 1.1rem;
  box-shadow: var(--shadow);
}

.signup-form h3 {
  color: var(--text-primary);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}

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

.form-group {
  display: grid;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(148,163,184,0.85);
}

.form-group input,
.form-group select {
  padding: 0.78rem 1rem;
  border-radius: 12px;
  border: 1px solid rgba(148,163,184,0.2);
  background: rgba(2,6,23,0.7);
  color: var(--text-primary);
  font-size: 0.92rem;
  font-family: var(--font);
  transition: border-color 0.25s, box-shadow 0.25s;
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2394a3b8' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-group select option { background: #0f172a; color: var(--text-primary); }

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: rgba(60,121,255,0.55);
  box-shadow: 0 0 0 3px rgba(60,121,255,0.18);
}

.form-group input::placeholder { color: rgba(148,163,184,0.4); }

.form-note {
  font-size: 0.78rem;
  color: rgba(148,163,184,0.65);
  text-align: center;
}
.form-note a {
  color: var(--accent-cyan);
}
.form-note a:hover { text-decoration: underline; }

/* ── TOAST ─────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(120px);
  background: rgba(22, 163, 74, 0.95);
  color: #fff;
  padding: 1rem 2rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(22,163,74,0.4);
  z-index: 9999;
  transition: transform 0.4s cubic-bezier(0.34,1.56,0.64,1);
  pointer-events: none;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

/* ── FOOTER ────────────────────────────────────── */
.footer {
  padding: 3rem 0;
  border-top: 1px solid rgba(148,163,184,0.08);
  background: rgba(2,6,23,0.96);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.4rem;
  text-align: center;
}

.footer-logo img { height: 52px; width: auto; opacity: 0.85; }

.footer-links, .footer-social {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.4rem;
  font-size: 0.88rem;
  color: rgba(148,163,184,0.8);
}

.footer-links a:hover, .footer-social a:hover { color: var(--text-primary); }

.footer-copy {
  font-size: 0.82rem;
  color: rgba(148,163,184,0.5);
}

/* ── ANIMATIONS ────────────────────────────────── */
[data-animate] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-animate="fade-left"]          { transform: translateX(36px); }
[data-animate="fade-left"].is-visible { transform: translateX(0); }

/* ── RESPONSIVE ────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-grid,
  .about-grid,
  .signup-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content > p { margin-left: auto; margin-right: auto; }
  .hero-cta { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { justify-self: center; }
  .cyber-visual { width: 380px; height: 380px; }
  .cc-left { display: none; }
  .shield-icon svg { width: 170px; height: 200px; }

  .about-content .btn { margin: 1.2rem auto 0; display: block; width: fit-content; }
  .about-cards { max-width: 520px; margin: 0 auto; }

  .signup-content h2 { text-align: center; }
  .signup-content .eyebrow { display: block; margin-left: auto; margin-right: auto; width: fit-content; }
  .signup-perks { text-align: left; max-width: 360px; margin: 0 auto; }

  .section-header { margin-left: auto; margin-right: auto; text-align: center; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    inset: 0;
    padding-top: 5.5rem;
    flex-direction: column;
    gap: 1.4rem;
    font-size: 1.15rem;
    background: rgba(2,6,23,0.97);
    transform: translateY(-100%);
    transition: transform 0.35s ease;
    align-items: center;
    z-index: 998;
  }
  .nav-links.is-open { transform: translateY(0); }
  .nav-toggle { display: flex; z-index: 999; }
  .navbar .btn-primary { display: none; }
}

@media (max-width: 580px) {
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .about-cards { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .signup-form { padding: 1.8rem 1.4rem; }
  .products-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 400px) {
  .products-grid { grid-template-columns: 1fr; }
}