:root {
  --orange: #E85C1A;
  --orange-light: #F47A45;
  --orange-dark: #C04A0F;
  --black: #0d0d0d;
  --black-2: #222222;
  --black-3: #2a2a2a;
  --black-4: #383838;
  --white: #ffffff;
  --gray: #888888;
  --gray-light: #cccccc;
  --text: #e0e0e0;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --radius: 6px;
  --transition: 0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--black); color: var(--text); line-height: 1.65; font-size: 16px; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-dark { background: var(--black-2); }
.section-darker { background: var(--black); }
.text-center { text-align: center; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 28px; border-radius: var(--radius); font-weight: 700; font-size: 15px; cursor: pointer; border: 2px solid transparent; transition: all var(--transition); white-space: nowrap; font-family: var(--font); }
.btn-primary { background: var(--orange); color: var(--white); border-color: var(--orange); }
.btn-primary:hover { background: var(--orange-light); border-color: var(--orange-light); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--orange); border-color: var(--orange); }
.btn-outline:hover { background: var(--orange); color: var(--white); }
.btn-white { background: var(--white); color: var(--orange-dark); border-color: var(--white); font-weight: 700; }
.btn-white:hover { background: var(--orange-light); color: var(--white); border-color: var(--orange-light); }
.btn-ghost { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.4); }
.btn-ghost:hover { border-color: var(--white); background: rgba(255,255,255,0.08); }
.btn-sm { padding: 9px 20px; font-size: 14px; }
.btn-lg { padding: 16px 36px; font-size: 16px; }

/* SECTION HEADER */
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag { display: inline-block; background: rgba(232,92,26,0.12); color: var(--orange-light); font-size: 12px; font-weight: 700; letter-spacing: 0.09em; text-transform: uppercase; padding: 5px 14px; border-radius: 3px; border: 1px solid rgba(232,92,26,0.3); margin-bottom: 14px; }
.section-header h2 { font-size: clamp(24px, 4vw, 36px); font-weight: 800; color: var(--white); margin-bottom: 14px; line-height: 1.2; }
.section-header p { font-size: 17px; color: var(--gray); max-width: 580px; margin: 0 auto; }

/* HEADER */
.site-header { position: sticky; top: 0; z-index: 1000; background: #ffffff; border-bottom: 2px solid var(--orange); }
.header-inner { display: flex; align-items: center; height: 68px; gap: 24px; }
.logo { display: flex; align-items: center; flex-shrink: 0; }
.logo-img { height: 40px; width: auto; display: block; }
.footer-logo-img { height: 48px; width: auto; display: block; margin-bottom: 12px; filter: brightness(0) invert(1); opacity: 0.85; }
.logo-icon { font-size: 26px; }
.logo-name { font-size: 15px; font-weight: 800; color: var(--white); letter-spacing: 0.06em; display: block; line-height: 1.1; }
.logo-sub { font-size: 10px; color: var(--gray); letter-spacing: 0.03em; display: block; }
.main-nav { margin-left: auto; }
.main-nav ul { display: flex; align-items: center; gap: 2px; }
.main-nav ul li a { display: block; padding: 8px 14px; font-size: 14px; font-weight: 500; color: #333333; border-radius: var(--radius); transition: all var(--transition); }
.main-nav ul li a:hover, .main-nav ul li a.active { color: var(--orange); background: rgba(232,92,26,0.08); }
.nav-dropdown:hover .header-cta { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.header-phone { font-size: 13px; font-weight: 600; color: #444444; white-space: nowrap; }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 22px; height: 2px; background: #333333; border-radius: 2px; transition: all var(--transition); }

/* HERO */
.hero { background: var(--black); padding: 72px 0 64px; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; left: 0; top: 0; width: 3px; height: 100%; background: var(--orange); }
.hero-glow { position: absolute; right: -100px; bottom: -100px; width: 500px; height: 500px; background: radial-gradient(circle, rgba(232,92,26,0.08) 0%, transparent 65%); pointer-events: none; }
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; position: relative; z-index: 1; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(232,92,26,0.12); border: 1px solid rgba(232,92,26,0.35); color: var(--orange-light); font-size: 12px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; padding: 6px 14px; border-radius: 3px; margin-bottom: 22px; }
.hero h1 { font-size: clamp(30px, 4.5vw, 48px); font-weight: 800; color: var(--white); line-height: 1.15; margin-bottom: 18px; }
.hero h1 em { color: var(--orange); font-style: normal; }
.hero-desc { font-size: 17px; color: var(--gray); margin-bottom: 36px; line-height: 1.7; max-width: 460px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 52px; }
.hero-stats { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; border-top: 1px solid rgba(255,255,255,0.07); padding-top: 36px; }
.stat strong { display: block; font-size: 28px; font-weight: 800; color: var(--orange); line-height: 1; margin-bottom: 4px; }
.stat span { font-size: 12px; color: var(--gray); line-height: 1.4; }
.cert-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.cert-box { background: var(--black-3); border: 1px solid var(--black-4); border-radius: var(--radius); padding: 22px 16px; text-align: center; font-size: 13px; font-weight: 700; color: var(--gray-light); letter-spacing: 0.05em; transition: all var(--transition); }
.cert-box:hover { border-color: var(--orange); color: var(--orange-light); }
.cert-box.accent { background: rgba(232,92,26,0.1); border-color: rgba(232,92,26,0.5); color: var(--orange); }

/* NEDEN BİZ */
.cards-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.feat-card { background: var(--black-3); border: 1px solid var(--black-4); border-top: 3px solid var(--orange); border-radius: var(--radius); padding: 28px 22px; transition: all var(--transition); }
.feat-card:hover { border-color: var(--orange); transform: translateY(-3px); }
.feat-card:hover { border-top-color: var(--orange); }
.feat-icon { font-size: 32px; margin-bottom: 16px; }
.feat-card h3 { font-size: 16px; font-weight: 700; color: var(--white); margin-bottom: 10px; }
.feat-card p { font-size: 14px; color: var(--gray); line-height: 1.6; }

/* HİZMETLER */
.cards-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.svc-card { display: block; background: var(--black-3); border: 1px solid var(--black-4); border-radius: var(--radius); padding: 28px 22px; transition: all var(--transition); }
.svc-card:hover { border-color: var(--orange); transform: translateY(-3px); }
.svc-icon { font-size: 30px; margin-bottom: 14px; }
.svc-card h3 { font-size: 16px; font-weight: 700; color: var(--white); margin-bottom: 10px; }
.svc-card p { font-size: 14px; color: var(--gray); margin-bottom: 16px; line-height: 1.6; }
.card-link { font-size: 13px; font-weight: 700; color: var(--orange); }
.svc-card:hover .card-link { color: var(--orange-light); }

/* SÜREÇ */
.process-steps { display: flex; align-items: flex-start; justify-content: center; flex-wrap: wrap; }
.proc-step { flex: 1; min-width: 180px; max-width: 220px; text-align: center; padding: 20px 16px; }
.step-num { font-size: 52px; font-weight: 800; color: var(--orange); opacity: 0.5; line-height: 1; margin-bottom: 16px; }
.proc-step h3 { font-size: 16px; font-weight: 700; color: var(--white); margin-bottom: 10px; }
.proc-step p { font-size: 14px; color: var(--gray); line-height: 1.6; }
.proc-arrow { font-size: 22px; color: var(--orange); opacity: 0.4; align-self: center; padding: 0 4px; flex-shrink: 0; }

/* CTA BAND */
.cta-band { background: var(--orange); padding: 64px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-inner h2 { font-size: clamp(22px, 3vw, 30px); font-weight: 800; color: var(--white); margin-bottom: 10px; }
.cta-inner p { font-size: 16px; color: rgba(255,255,255,0.85); }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; flex-shrink: 0; }

/* FOOTER */
.site-footer { background: var(--black); border-top: 2px solid var(--orange); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 48px; padding-bottom: 48px; }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo-icon { font-size: 22px; }
.footer-logo-name { font-size: 14px; font-weight: 800; color: var(--white); letter-spacing: 0.05em; display: block; }
.footer-logo-sub { font-size: 10px; color: var(--gray); display: block; }
.footer-desc { font-size: 14px; color: var(--gray); line-height: 1.7; margin-bottom: 12px; }
.footer-tagline { font-size: 12px; color: var(--orange); font-weight: 600; }
.footer-social { display: flex; gap: 12px; margin-top: 16px; }
.footer-social a { display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; background: var(--black-4); border: 1px solid var(--black-5); border-radius: var(--radius); color: var(--gray); transition: all var(--transition); }
.footer-social a:hover { background: var(--orange); border-color: var(--orange); color: var(--white); transform: translateY(-2px); }
.footer-col h4 { font-size: 12px; font-weight: 700; color: var(--orange); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 9px; }
.footer-col ul li a { font-size: 13px; color: var(--gray); transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--orange-light); }
.contact-list li { font-size: 13px; color: var(--gray); margin-bottom: 10px; line-height: 1.5; }
.contact-list a { color: var(--gray); transition: color var(--transition); }
.contact-list a:hover { color: var(--orange-light); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding: 20px 0; }
.footer-bottom-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer-bottom-inner span { font-size: 12px; color: rgba(255,255,255,0.3); }
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { font-size: 12px; color: rgba(255,255,255,0.3); transition: color var(--transition); }
.footer-bottom-links a:hover { color: var(--gray); }

/* PAGE HERO (alt sayfalar) */
.page-hero { background: var(--black-2); border-bottom: 1px solid var(--black-4); padding: 48px 0; position: relative; overflow: hidden; }
.page-hero::before { content: ''; position: absolute; left: 0; top: 0; width: 3px; height: 100%; background: var(--orange); }
.page-hero h1 { font-size: clamp(26px, 4vw, 40px); font-weight: 800; color: var(--white); margin-bottom: 10px; }
.page-hero p { font-size: 17px; color: var(--gray); max-width: 560px; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--gray); margin-bottom: 16px; }
.breadcrumb a { color: var(--orange); }
.breadcrumb span { opacity: 0.4; }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .cards-4 { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .main-nav, .header-phone { display: none; }
  .hamburger { display: flex; }
  .main-nav.open { display: block; position: fixed; top: 68px; left: 0; right: 0; bottom: 0; background: var(--black); overflow-y: auto; padding: 20px; z-index: 999; }
  .main-nav.open ul { flex-direction: column; gap: 0; }
  .main-nav.open ul li a { padding: 14px 0; border-bottom: 1px solid var(--black-4); font-size: 15px; }
    .nav-dropdown.open   .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .cert-grid { grid-template-columns: repeat(3,1fr); }
  .cards-3 { grid-template-columns: 1fr; }
  .cards-4 { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-inner { flex-direction: column; text-align: center; }
  .cta-actions { justify-content: center; }
  .process-steps { flex-direction: column; align-items: center; }
  .proc-arrow { transform: rotate(90deg); }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
  .hero-cta { flex-direction: column; }
  .cards-4 { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { grid-template-columns: repeat(2,1fr); }
}