@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Noto+Sans+SC:wght@300;400;500;700&family=Noto+Sans+Arabic:wght@300;400;500;700&family=Space+Grotesk:wght@400;500;600;700;800&display=swap');

/* ═══ DESIGN TOKENS ═══ */
:root {
  --bg-base:       #0d1120;
  --bg-alt:        #111827;
  --bg-card:       #1a2236;
  --bg-card-hover: #202b42;
  --border:        rgba(91,163,255,0.13);
  --border-hover:  rgba(91,163,255,0.35);

  --accent:        #5ba3ff;
  --accent-dim:    rgba(91,163,255,0.12);
  --accent-glow:   rgba(91,163,255,0.30);
  --accent-red:    #ff6b5b;
  --accent-red-dim:rgba(255,107,91,0.12);
  --accent-green:  #34d399;
  --accent-purple: #a78bfa;
  --accent-cyan:   #22d3ee;
  --accent-orange: #fb923c;

  --text-primary:  #f1f4ff;
  --text-secondary:#94a3c0;
  --text-muted:    #576080;

  --font-en:   'Space Grotesk','Inter',sans-serif;
  --font-zh:   'Noto Sans SC','Inter',sans-serif;
  --font-ar:   'Noto Sans Arabic',sans-serif;
  --font-mono: 'Courier New',monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: 0.28s cubic-bezier(0.4,0,0.2,1);

  --space-section: 7rem;
}

/* ═══ RESET ═══ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  background:var(--bg-base);
  color:var(--text-primary);
  font-family:var(--font-en);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.lang-zh{font-family:var(--font-zh)}
body.lang-ar{font-family:var(--font-ar);direction:rtl;text-align:right}
::-webkit-scrollbar{width:4px}
::-webkit-scrollbar-track{background:var(--bg-base)}
::-webkit-scrollbar-thumb{background:var(--border-hover);border-radius:2px}
a{color:inherit;text-decoration:none}

/* ═══ TYPOGRAPHY ═══ */
h1{font-size:clamp(2.4rem,5vw,4.2rem);font-weight:800;line-height:1.08;letter-spacing:-0.03em}
h2{font-size:clamp(1.7rem,3vw,2.6rem);font-weight:700;line-height:1.18;letter-spacing:-0.02em}
h3{font-size:clamp(1.1rem,2vw,1.35rem);font-weight:600;letter-spacing:-0.01em}
h4{font-size:0.95rem;font-weight:600}
p{color:var(--text-secondary);line-height:1.78}

/* ═══ LAYOUT ═══ */
.container{max-width:1240px;margin:0 auto;padding:0 2rem}

.section{padding:var(--space-section) 0;position:relative}

/* Per-section color tints */
.section-ai      {background:linear-gradient(180deg,var(--bg-base) 0%,#0d1420 100%)}
.section-security{background:linear-gradient(180deg,#130e11 0%,#0f1117 100%)}
.section-redblue {background:linear-gradient(180deg,#0f1117 0%,#110e18 100%)}
.section-compute {background:linear-gradient(180deg,#100d1a 0%,#0d1120 100%)}
.section-edge    {background:linear-gradient(180deg,#0d1120 0%,#0a1320 100%)}
.section-comply  {background:linear-gradient(180deg,#0a1320 0%,#0d1a14 100%)}
.section-why     {background:linear-gradient(180deg,#0d1a14 0%,#0d1120 100%)}
.section-cta     {background:var(--bg-alt)}

.section-label{
  display:inline-flex;align-items:center;gap:0.5rem;
  font-size:0.72rem;font-weight:700;letter-spacing:0.18em;text-transform:uppercase;
  color:var(--accent);margin-bottom:0.9rem
}
.section-label::before{content:'';display:block;width:18px;height:1px;background:var(--accent)}
body.lang-ar .section-label{flex-direction:row-reverse}
body.lang-ar .section-label::before{display:none}
body.lang-ar .section-label::after{content:'';display:block;width:18px;height:1px;background:var(--accent)}

/* ═══ HEADING GRADIENTS (per section color) ═══ */
.heading-blue   {background:linear-gradient(135deg,#f1f4ff 30%,#5ba3ff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.heading-red    {background:linear-gradient(135deg,#f1f4ff 30%,#ff6b5b);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.heading-purple {background:linear-gradient(135deg,#f1f4ff 30%,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.heading-green  {background:linear-gradient(135deg,#f1f4ff 30%,#34d399);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.heading-cyan   {background:linear-gradient(135deg,#f1f4ff 30%,#22d3ee);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* ═══ BUTTONS ═══ */
.btn{
  display:inline-flex;align-items:center;gap:0.45rem;
  padding:0.75rem 1.8rem;border-radius:var(--radius-sm);
  font-size:0.88rem;font-weight:600;letter-spacing:0.02em;
  cursor:pointer;border:none;transition:var(--transition);white-space:nowrap
}
.btn-primary{background:var(--accent);color:#0d1120}
.btn-primary:hover{background:#74b5ff;box-shadow:0 0 28px var(--accent-glow);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--text-primary);border:1px solid var(--border-hover)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-dim)}
.btn-red{background:var(--accent-red);color:#fff}
.btn-red:hover{background:#ff8070;box-shadow:0 0 28px rgba(255,107,91,0.35);transform:translateY(-2px)}

/* ═══ CARDS ═══ */
.card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-md);padding:2rem;transition:var(--transition)
}
.card:hover{
  border-color:var(--border-hover);background:var(--bg-card-hover);
  transform:translateY(-4px);box-shadow:0 16px 48px rgba(0,0,0,0.45)
}

/* ═══ TAGS ═══ */
.tag{display:inline-flex;align-items:center;padding:0.22rem 0.7rem;border-radius:999px;font-size:0.7rem;font-weight:700;letter-spacing:0.07em;text-transform:uppercase}
.tag-blue  {background:rgba(91,163,255,0.12);color:#5ba3ff;border:1px solid rgba(91,163,255,0.22)}
.tag-red   {background:rgba(255,107,91,0.12);color:#ff6b5b;border:1px solid rgba(255,107,91,0.22)}
.tag-green {background:rgba(52,211,153,0.12);color:#34d399;border:1px solid rgba(52,211,153,0.22)}
.tag-purple{background:rgba(167,139,250,0.12);color:#a78bfa;border:1px solid rgba(167,139,250,0.22)}
.tag-cyan  {background:rgba(34,211,238,0.12);color:#22d3ee;border:1px solid rgba(34,211,238,0.22)}

/* ═══ NAVBAR ═══ */
.navbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:66px;display:flex;align-items:center;
  border-bottom:1px solid transparent;transition:var(--transition)
}
.navbar.scrolled{
  background:rgba(13,17,32,0.88);backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);border-bottom-color:var(--border)
}
.navbar .container{display:flex;align-items:center;justify-content:space-between;width:100%}

/* ── LOGO ── */
.nav-logo{display:flex;align-items:center;gap:0.85rem;text-decoration:none}
.logo-svg-wrap svg{display:block}
.nav-logo-text{display:flex;flex-direction:column;line-height:1.15}
.nav-logo-text .logo-en{
  font-size:1.05rem;font-weight:800;color:var(--text-primary);
  font-family:var(--font-en);letter-spacing:-0.02em
}
.nav-logo-text .logo-sub{font-size:0.6rem;color:var(--text-muted);letter-spacing:0.1em;font-family:var(--font-zh)}

.nav-links{display:flex;align-items:center;gap:2.2rem;list-style:none}
.nav-links a{
  font-size:0.875rem;font-weight:500;color:var(--text-secondary);
  transition:color var(--transition);position:relative
}
.nav-links a::after{
  content:'';position:absolute;bottom:-4px;left:0;right:0;
  height:1px;background:var(--accent);transform:scaleX(0);
  transition:transform var(--transition)
}
.nav-links a:hover,.nav-links a.active{color:var(--text-primary)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}

.nav-right{display:flex;align-items:center;gap:1rem}

/* Language switcher */
.lang-switcher{
  display:flex;align-items:center;gap:2px;
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:6px;padding:3px
}
.lang-btn{
  padding:0.28rem 0.55rem;border-radius:4px;font-size:0.7rem;font-weight:700;
  cursor:pointer;border:none;background:transparent;color:var(--text-muted);
  transition:var(--transition);letter-spacing:0.05em
}
.lang-btn.active{background:var(--accent);color:#0d1120}

/* Hamburger */
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px}
.hamburger span{display:block;width:22px;height:2px;background:var(--text-primary);border-radius:2px;transition:var(--transition)}

/* ═══ GLOBAL CANVAS BG ═══ */
#bg-canvas{
  position:fixed;inset:0;z-index:0;
  pointer-events:none;opacity:0.85
}

/* ═══ HERO ═══ */
.hero{
  min-height:100vh;display:flex;align-items:center;
  padding-top:66px;position:relative;overflow:hidden
}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1fr 1fr;
  gap:4rem;align-items:center;width:100%
}
@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr}
  .hero-right{display:none}
}

.hero-eyebrow{
  display:inline-flex;align-items:center;gap:0.5rem;
  padding:0.38rem 1rem;
  background:rgba(91,163,255,0.08);
  border:1px solid rgba(91,163,255,0.22);
  border-radius:999px;font-size:0.75rem;font-weight:700;
  color:var(--accent);letter-spacing:0.1em;text-transform:uppercase;
  margin-bottom:1.5rem
}
.hero-eyebrow .dot{
  width:6px;height:6px;background:var(--accent);
  border-radius:50%;animation:pulse 2s ease-in-out infinite
}

.hero h1{margin-bottom:1.5rem}
.hero h1 .line1{color:var(--text-primary);display:block}
.hero h1 .line2{
  display:block;
  background:linear-gradient(100deg,#5ba3ff 0%,#a78bfa 50%,#22d3ee 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text
}

.hero-desc{font-size:1.05rem;max-width:520px;margin-bottom:2rem;line-height:1.8}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap;align-items:center;margin-bottom:3.5rem}
.hero-stats{
  display:flex;gap:2.5rem;padding-top:2rem;
  border-top:1px solid var(--border);flex-wrap:wrap
}
.stat-item .num{
  font-size:1.9rem;font-weight:800;color:var(--text-primary);
  font-family:var(--font-en);letter-spacing:-0.03em
}
.stat-item .num em{color:var(--accent);font-style:normal}
.stat-item .label{font-size:0.76rem;color:var(--text-muted);margin-top:0.15rem;letter-spacing:0.05em}

/* Hero right — mini dashboard visual */
.hero-right{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-lg);overflow:hidden;position:relative
}
.hero-dash-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:0.85rem 1.25rem;border-bottom:1px solid var(--border);
  background:rgba(13,17,32,0.6)
}
.dash-dots{display:flex;gap:6px}
.dash-dots span{width:10px;height:10px;border-radius:50%}
.dash-dots .d1{background:#ff6b5b}.dash-dots .d2{background:#fb923c}.dash-dots .d3{background:#34d399}
.dash-title{font-size:0.72rem;font-family:var(--font-mono);color:var(--text-muted);letter-spacing:0.08em}
.hero-canvas-box{height:300px;position:relative;background:rgba(8,12,22,0.7)}
.hero-canvas-box canvas{position:absolute;inset:0;width:100%;height:100%}

/* Threat feed */
.threat-feed{padding:1rem 1.25rem;display:flex;flex-direction:column;gap:0.45rem}
.threat-row{
  display:flex;align-items:center;gap:0.6rem;
  font-size:0.72rem;font-family:var(--font-mono);color:var(--text-secondary)
}
.threat-row .t-dot{width:6px;height:6px;border-radius:50%;flex-shrink:0;animation:pulse 2s ease-in-out infinite}
.threat-row .t-dot.red{background:var(--accent-red)}
.threat-row .t-dot.grn{background:var(--accent-green)}
.threat-row .t-dot.yel{background:var(--accent-orange)}
.threat-row .t-tag{color:var(--accent-red);font-weight:700}
.threat-row .t-time{margin-left:auto;color:var(--text-muted)}

/* ═══ TICKER ═══ */
.ticker{
  background:var(--bg-alt);border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);padding:0.55rem 0;overflow:hidden;
  position:relative;z-index:1
}
.ticker-inner{display:flex;gap:3.5rem;animation:ticker 35s linear infinite;white-space:nowrap;width:max-content}
.ticker-item{font-size:0.7rem;font-family:var(--font-mono);color:var(--text-muted);letter-spacing:0.08em;text-transform:uppercase}
.ticker-item .ti-dot{color:var(--accent);margin-right:0.4rem}
@keyframes ticker{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* ═══ ANIM BLOCKS ═══ */
.anim-block{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-lg);overflow:hidden;margin-top:2.5rem
}
.anim-split{
  display:grid;grid-template-columns:1fr 1fr;min-height:380px
}
@media(max-width:768px){.anim-split{grid-template-columns:1fr}}

.anim-canvas-wrap{
  position:relative;background:rgba(8,12,22,0.8);min-height:340px;
  border-right:1px solid var(--border)
}
.anim-canvas-wrap canvas{display:block;width:100%;height:100%;position:absolute;inset:0}
.anim-desc{
  padding:2.5rem;display:flex;flex-direction:column;justify-content:center;gap:0
}
.anim-desc h3{margin-bottom:0.6rem}
.anim-desc>p{font-size:0.88rem;margin-bottom:1.25rem}
.feat-list{list-style:none;display:flex;flex-direction:column;gap:0.45rem;margin-top:0.25rem}
.feat-list li{
  display:flex;align-items:center;gap:0.6rem;
  font-size:0.82rem;color:var(--text-secondary)
}
.feat-list li::before{content:'';width:4px;height:4px;border-radius:50%;background:var(--accent);flex-shrink:0}

.anim-full{position:relative;background:rgba(8,12,22,0.8);height:300px}
.anim-full canvas{position:absolute;inset:0;width:100%;height:100%}

/* ═══ WHY GRID ═══ */
.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1.25rem;margin-top:2.5rem}
.why-card{
  padding:1.75rem;background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-md);transition:var(--transition)
}
.why-card:hover{border-color:var(--border-hover)}
.why-icon{font-size:1.5rem;margin-bottom:0.85rem}
.why-card h3{font-size:0.95rem;margin-bottom:0.4rem}
.why-card p{font-size:0.82rem}

/* ═══ SERVICES GRID ═══ */
.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.25rem;margin-top:2.5rem}
.service-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-md);padding:1.75rem;transition:var(--transition);
  position:relative;overflow:hidden
}
.service-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--card-accent,var(--accent)),transparent);
  opacity:0;transition:opacity var(--transition)
}
.service-card:hover::before{opacity:1}
.service-card:hover{border-color:var(--border-hover);background:var(--bg-card-hover);transform:translateY(-4px);box-shadow:0 20px 60px rgba(0,0,0,0.5)}
.service-icon{width:46px;height:46px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.3rem;margin-bottom:1.1rem;background:var(--accent-dim)}
.service-card h3{margin-bottom:0.6rem}
.service-card p{font-size:0.84rem;margin-bottom:1.1rem}
.service-tags{display:flex;flex-wrap:wrap;gap:0.35rem}

/* ═══ CTA BANNER ═══ */
.cta-banner{
  background:linear-gradient(135deg,rgba(91,163,255,0.07) 0%,rgba(167,139,250,0.05) 100%);
  border:1px solid var(--border-hover);border-radius:var(--radius-lg);
  padding:5rem 3rem;text-align:center;position:relative;overflow:hidden
}
.cta-banner::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse at 50% 0%,rgba(91,163,255,0.1) 0%,transparent 65%)
}
.cta-banner>*{position:relative}
.cta-banner h2{margin-bottom:1rem}
.cta-banner>p{max-width:480px;margin:0 auto 2rem}
.cta-btn-group{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}

/* ═══ FOOTER ═══ */
.footer{border-top:1px solid var(--border);padding:4.5rem 0 2rem;background:var(--bg-alt)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:3rem;margin-bottom:3rem}
@media(max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.footer-grid{grid-template-columns:1fr;gap:2rem}}
.footer-brand p{font-size:0.84rem;color:var(--text-muted);margin-top:0.85rem;max-width:260px;line-height:1.7}
.footer-col h4{font-size:0.7rem;font-weight:700;letter-spacing:0.12em;text-transform:uppercase;color:var(--text-muted);margin-bottom:1.1rem}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:0.55rem}
.footer-col ul li a{font-size:0.84rem;color:var(--text-secondary);transition:color var(--transition)}
.footer-col ul li a:hover{color:var(--accent)}
.footer-bottom{padding-top:2rem;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}
.footer-bottom p{font-size:0.76rem;color:var(--text-muted)}

/* ═══ FADE-IN ═══ */
.fade-in{opacity:0;transform:translateY(18px);transition:opacity 0.55s ease,transform 0.55s ease;will-change:opacity,transform}
.fade-in.visible{opacity:1;transform:translateY(0);will-change:auto}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--border-hover),transparent)}

/* ═══ ANIMATIONS ═══ */
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.4;transform:scale(0.8)}}

/* ═══ RESPONSIVE ═══ */
@media(max-width:768px){
  .nav-links{display:none}
  .hamburger{display:flex}
  .nav-links.open{
    display:flex;flex-direction:column;position:fixed;
    top:66px;left:0;right:0;
    background:rgba(13,17,32,0.97);backdrop-filter:blur(20px);
    padding:2rem;gap:1.5rem;border-bottom:1px solid var(--border)
  }
  .hero-stats{gap:1.5rem}
  .services-grid{grid-template-columns:1fr}
  .anim-split{grid-template-columns:1fr}
  .anim-canvas-wrap{border-right:none;border-bottom:1px solid var(--border)}
  .footer-bottom{flex-direction:column;text-align:center}
}
body.lang-ar .nav-links a::after{left:0;right:0}
body.lang-ar .anim-desc{border-right:none;border-left:1px solid var(--border)}