/* ─────────────────────────────────────────────────────────────────────────────
   Derroh IT — Landing Page Styles
   Stack: Vanilla CSS, Google Fonts (Inter + Space Grotesk)
───────────────────────────────────────────────────────────────────────────── */

/* ─── Variables ─────────────────────────────────────────────────────────────── */
:root {
  --bg:             #070b14;
  --bg2:            #0d1220;
  --surface:        #111827;
  --surface2:       #1a2236;
  --border:         rgba(99, 120, 180, 0.14);
  --border-glow:    rgba(99, 120, 240, 0.35);

  --accent:         #5d8cff;
  --accent2:        #a855f7;
  --accent3:        #06b6d4;
  --gradient:       linear-gradient(135deg, var(--accent), var(--accent2));

  --text:           #f0f4ff;
  --text-muted:     #8896b3;
  --text-faint:     #3d4d6b;

  --radius:         16px;
  --radius-sm:      10px;
  --radius-pill:    100px;

  --shadow-card:    0 4px 30px rgba(0,0,0,.45), 0 0 0 1px var(--border);
  --shadow-glow:    0 0 60px rgba(93,140,255,.18), 0 0 120px rgba(168,85,247,.10);

  --transition:     .3s cubic-bezier(.4,0,.2,1);
  --font-body:      'Inter', system-ui, sans-serif;
  --font-display:   'Space Grotesk', 'Inter', system-ui, sans-serif;
}

/* ─── Reset ─────────────────────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font-body);
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{border:none;background:none;cursor:pointer;font-family:inherit}

/* ─── Utility ────────────────────────────────────────────────────────────────── */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.gradient-text{
  background:var(--gradient);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 26px;
  border-radius:var(--radius-pill);
  font-size:.95rem;font-weight:600;
  transition:var(--transition);
  white-space:nowrap;
}
.btn-primary{
  background:var(--gradient);
  color:#fff;
  box-shadow:0 4px 24px rgba(93,140,255,.35);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 8px 32px rgba(93,140,255,.5);
  filter:brightness(1.1);
}
.btn-ghost{
  background:rgba(255,255,255,.06);
  color:var(--text);
  border:1px solid var(--border);
  backdrop-filter:blur(8px);
}
.btn-ghost:hover{
  background:rgba(255,255,255,.12);
  border-color:var(--border-glow);
  transform:translateY(-2px);
}
.btn-lg{padding:15px 36px;font-size:1.05rem}
.btn-full{width:100%;justify-content:center}

.section-header{text-align:center;margin-bottom:64px}
.section-header h2{font-family:var(--font-display);font-size:clamp(2rem,4vw,2.8rem);font-weight:700;margin:10px 0 16px}
.section-header p{color:var(--text-muted);max-width:560px;margin:0 auto;font-size:1.05rem}
.section-tag{
  display:inline-block;padding:5px 14px;
  background:rgba(93,140,255,.12);
  color:var(--accent);
  border:1px solid rgba(93,140,255,.25);
  border-radius:var(--radius-pill);
  font-size:.8rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  margin-bottom:8px;
}

/* ─── Logo ───────────────────────────────────────────────────────────────────── */
.logo{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;font-size:1.2rem}
.logo em{font-style:normal;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.logo-icon{
  width:36px;height:36px;
  background:var(--gradient);
  border-radius:10px;
  display:grid;place-items:center;
  font-size:1.1rem;font-weight:900;color:#fff;
  flex-shrink:0;
}

/* ─── Navbar ─────────────────────────────────────────────────────────────────── */
.nav-wrapper{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:18px 0;
  transition:var(--transition);
}
.nav-wrapper.scrolled{
  background:rgba(7,11,20,.85);
  backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);
  padding:12px 0;
}
.nav-inner{display:flex;align-items:center;gap:40px}
.nav-links{display:flex;gap:32px;margin:0 auto}
.nav-links a{
  color:var(--text-muted);font-size:.95rem;font-weight:500;
  position:relative;transition:var(--transition);
}
.nav-links a::after{
  content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;
  background:var(--gradient);border-radius:2px;transition:var(--transition);
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{width:100%}
.nav-cta{padding:10px 22px;font-size:.9rem}
.hamburger{display:none;flex-direction:column;gap:5px;padding:4px}
.hamburger span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:var(--transition)}

/* ─── Hero ───────────────────────────────────────────────────────────────────── */
.hero{
  min-height:100vh;
  display:flex;align-items:center;
  position:relative;
  overflow:hidden;
  padding:120px 0 80px;
}
.hero-bg{
  position:absolute;inset:0;
  background:url('hero-bg.png') center/cover no-repeat;
  transform:scale(1.04);
  transition:transform 8s ease;
}
.hero-bg.loaded{transform:scale(1)}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(
    135deg,
    rgba(7,11,20,.92) 0%,
    rgba(7,11,20,.75) 50%,
    rgba(13,18,32,.88) 100%
  );
}
.hero-grid-overlay{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(93,140,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(93,140,255,.04) 1px, transparent 1px);
  background-size:50px 50px;
}
.hero-content{position:relative;z-index:2;max-width:820px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;
  background:rgba(93,140,255,.1);
  border:1px solid rgba(93,140,255,.2);
  border-radius:var(--radius-pill);
  font-size:.85rem;font-weight:500;color:var(--accent);
  margin-bottom:24px;
  animation:fadeSlideUp .8s ease both;
}
.hero-title{
  font-family:var(--font-display);
  font-size:clamp(2.8rem,6vw,5rem);
  font-weight:800;
  line-height:1.08;
  letter-spacing:-.02em;
  margin-bottom:24px;
  animation:fadeSlideUp .8s .1s ease both;
}
.hero-subtitle{
  font-size:clamp(1rem,2vw,1.2rem);
  color:var(--text-muted);
  max-width:600px;
  margin-bottom:40px;
  line-height:1.7;
  animation:fadeSlideUp .8s .2s ease both;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:56px;animation:fadeSlideUp .8s .3s ease both}
.hero-clients{
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  animation:fadeSlideUp .8s .4s ease both;
}
.hero-clients span{color:var(--text-faint);font-size:.85rem;white-space:nowrap}
.client-logos{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.client-logo{color:var(--text-muted);font-weight:600;font-size:.9rem;letter-spacing:.02em}
.sep{color:var(--text-faint)}

.hero-scroll-hint{
  position:absolute;bottom:36px;right:48px;
  display:flex;flex-direction:column;align-items:center;gap:8px;
  color:var(--text-faint);font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;
  animation:fadeIn 1.2s .6s ease both;
}
.scroll-line{
  width:1px;height:48px;
  background:linear-gradient(to bottom,var(--text-faint),transparent);
  animation:scrollPulse 2s ease-in-out infinite;
}

/* ─── Services ───────────────────────────────────────────────────────────────── */
.services{padding:120px 0}
.services-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(340px,1fr));
  gap:24px;
}
.service-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:36px;
  position:relative;
  overflow:hidden;
  transition:var(--transition);
  opacity:0;transform:translateY(30px);
}
.service-card.visible{opacity:1;transform:translateY(0)}
.service-card::before{
  content:'';
  position:absolute;inset:0;
  background:var(--gradient);
  opacity:0;border-radius:inherit;
  transition:var(--transition);
}
.service-card:hover{
  border-color:var(--border-glow);
  transform:translateY(-4px);
  box-shadow:var(--shadow-card),var(--shadow-glow);
}
.service-card:hover .service-icon-wrap{
  background:var(--gradient);
  color:#fff;
  box-shadow:0 8px 24px rgba(93,140,255,.35);
}
.service-icon-wrap{
  width:52px;height:52px;
  background:var(--surface2);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  display:grid;place-items:center;
  margin-bottom:20px;
  transition:var(--transition);
  color:var(--accent);
}
.service-icon-wrap svg{width:24px;height:24px}
.service-card h3{font-family:var(--font-display);font-size:1.15rem;font-weight:700;margin-bottom:10px}
.service-card p{color:var(--text-muted);font-size:.93rem;line-height:1.65;margin-bottom:20px}
.service-link{
  color:var(--accent);font-size:.88rem;font-weight:600;
  transition:var(--transition);display:inline-flex;align-items:center;gap:4px;
}
.service-link:hover{gap:8px;opacity:.8}

/* ─── About ──────────────────────────────────────────────────────────────────── */
.about{
  padding:120px 0;
  background:linear-gradient(to bottom,var(--bg),var(--bg2) 50%,var(--bg));
}
.about-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:80px;
  align-items:center;
}
.about-visual{position:relative}
.about-glow{
  position:absolute;
  width:300px;height:300px;top:50%;left:50%;
  transform:translate(-50%,-50%);
  background:radial-gradient(circle,rgba(93,140,255,.15) 0%,transparent 70%);
  border-radius:50%;pointer-events:none;
}
.about-code-block{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  font-family:'Fira Code','JetBrains Mono',monospace;
}
.code-header{
  display:flex;align-items:center;gap:8px;
  padding:12px 16px;
  background:var(--surface2);
  border-bottom:1px solid var(--border);
}
.dot{width:12px;height:12px;border-radius:50%}
.dot.red{background:#ff5f57}
.dot.yellow{background:#febc2e}
.dot.green{background:#28c841}
.code-filename{color:var(--text-muted);font-size:.8rem;margin-left:auto}
.code-body{padding:24px;font-size:.85rem;line-height:1.8;overflow-x:auto}
.token.keyword{color:#c792ea}
.token.var{color:#82aaff}
.token.prop{color:#7dd3fc}
.token.str{color:#c3e88d}
.token.num{color:#f78c6c}
.token.sym{color:#89ddff}
.token.comment{color:var(--text-faint);font-style:italic}

.about-content .section-tag{display:inline-block}
.about-content h2{
  font-family:var(--font-display);
  font-size:clamp(2rem,3.5vw,2.6rem);
  font-weight:700;margin:12px 0 20px;
}
.about-content p{color:var(--text-muted);margin-bottom:16px;line-height:1.75}
.about-list{display:flex;flex-direction:column;gap:12px;margin-top:24px}
.about-list li{
  display:flex;align-items:center;gap:12px;
  font-size:.95rem;color:var(--text-muted);
}
.about-list svg{width:18px;height:18px;flex-shrink:0;color:var(--accent)}

/* ─── Stats ──────────────────────────────────────────────────────────────────── */
.stats{padding:100px 0}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:2px;
  background:var(--border);
  border-radius:var(--radius);
  overflow:hidden;
}
.stat-card{
  background:var(--surface);
  padding:48px 32px;
  text-align:center;
  transition:var(--transition);
}
.stat-card:hover{background:var(--surface2)}
.stat-number{
  font-family:var(--font-display);
  font-size:clamp(2.5rem,5vw,3.8rem);
  font-weight:800;
  background:var(--gradient);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
  line-height:1;display:inline;
}
.stat-suffix{
  font-family:var(--font-display);
  font-size:clamp(1.5rem,2.5vw,2rem);
  font-weight:700;
  background:var(--gradient);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
  display:inline;
}
.stat-label{color:var(--text-muted);font-size:.9rem;margin-top:8px}

/* ─── Testimonials ───────────────────────────────────────────────────────────── */
.testimonials{
  padding:120px 0;
  background:linear-gradient(to bottom,var(--bg),var(--bg2) 50%,var(--bg));
}
.testimonials-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  align-items:start;
}
.testimonial-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:36px;
  transition:var(--transition);
}
.testimonial-card.featured{
  border-color:rgba(93,140,255,.3);
  background:linear-gradient(145deg,var(--surface) 0%,rgba(93,140,255,.05) 100%);
  transform:translateY(-12px);
  box-shadow:var(--shadow-glow),var(--shadow-card);
}
.testimonial-card:hover{border-color:var(--border-glow);transform:translateY(-4px)}
.testimonial-card.featured:hover{transform:translateY(-16px)}
.stars{color:#fbbf24;font-size:1rem;margin-bottom:16px;letter-spacing:2px}
.testimonial-card p{color:var(--text-muted);line-height:1.75;margin-bottom:24px;font-size:.95rem}
.testimonial-author{display:flex;align-items:center;gap:14px}
.author-avatar{
  width:44px;height:44px;
  background:var(--gradient);
  border-radius:50%;
  display:grid;place-items:center;
  font-weight:700;font-size:.85rem;color:#fff;flex-shrink:0;
}
.testimonial-author strong{display:block;font-size:.9rem}
.testimonial-author span{color:var(--text-muted);font-size:.8rem}

/* ─── Contact ────────────────────────────────────────────────────────────────── */
.contact{padding:120px 0}
.contact-inner{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:80px;
  align-items:start;
}
.contact-content .section-tag{display:inline-block}
.contact-content h2{
  font-family:var(--font-display);
  font-size:clamp(1.8rem,3vw,2.4rem);
  font-weight:700;margin:12px 0 16px;
}
.contact-content p{color:var(--text-muted);margin-bottom:36px;line-height:1.75}
.contact-details{display:flex;flex-direction:column;gap:16px}
.contact-details li{
  display:flex;align-items:center;gap:12px;
  color:var(--text-muted);font-size:.95rem;
}
.contact-details svg{width:18px;height:18px;flex-shrink:0;color:var(--accent)}

.contact-form{display:flex;flex-direction:column;gap:20px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-group{display:flex;flex-direction:column;gap:8px}
.form-group label{font-size:.85rem;font-weight:600;color:var(--text-muted)}
.form-group input,
.form-group select,
.form-group textarea{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:12px 16px;
  color:var(--text);
  font-family:var(--font-body);
  font-size:.95rem;
  transition:var(--transition);
  outline:none;
  width:100%;
  resize:vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder{color:var(--text-faint)}
.form-group select option{background:var(--surface);color:var(--text)}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(93,140,255,.15);
}
.form-note{text-align:center;color:var(--text-faint);font-size:.8rem}

/* ─── Footer ─────────────────────────────────────────────────────────────────── */
.footer{
  border-top:1px solid var(--border);
  padding:48px 0;
  background:var(--bg);
}
.footer-inner{
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:24px;
}
.footer-copy{color:var(--text-faint);font-size:.85rem}
.footer-links{display:flex;gap:24px}
.footer-links a{color:var(--text-muted);font-size:.85rem;transition:var(--transition)}
.footer-links a:hover{color:var(--text)}

/* ─── Animations ─────────────────────────────────────────────────────────────── */
@keyframes fadeSlideUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes scrollPulse{0%,100%{transform:scaleY(1);opacity:.5}50%{transform:scaleY(1.3);opacity:1}}

/* ─── Responsive ─────────────────────────────────────────────────────────────── */
@media(max-width:1024px){
  .about-grid,.contact-inner{grid-template-columns:1fr;gap:48px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .testimonials-grid{grid-template-columns:1fr}
  .testimonial-card.featured{transform:none}
}
@media(max-width:768px){
  .nav-links,.nav-cta{display:none}
  .hamburger{display:flex}
  .nav-links.open{
    display:flex;flex-direction:column;gap:0;
    position:fixed;inset:0;top:68px;
    background:rgba(7,11,20,.97);
    backdrop-filter:blur(20px);
    padding:32px 24px;
    border-top:1px solid var(--border);
  }
  .nav-links.open li a{display:block;padding:16px 0;border-bottom:1px solid var(--border);font-size:1.1rem;color:var(--text)}
  .services-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .form-row{grid-template-columns:1fr}
  .footer-inner{flex-direction:column;text-align:center}
  .hero-scroll-hint{display:none}
}
@media(max-width:480px){
  .stats-grid{grid-template-columns:1fr}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%;justify-content:center}
}