/* ========================================
   ADFLOW SKIN - style.css
   Core styles using CSS variables from config
   ======================================== */

:root {
  --pc: #2563eb;
  --bg: #ffffff;
  --tc: #111827;
  --sub: #6b7280;
  --card: #f9fafb;
  --border: #e5e7eb;
  --ff: 'Pretendard', sans-serif;
  --hs: 44px;
  --bs: 16px;
  --sp: 80px;
  --cr: 16px;
  --br: 10px;
  --shadow: 0 4px 12px rgba(0,0,0,.1);
  --gc: 4;
}

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

body {
  font-family: var(--ff);
  color: var(--tc);
  background: var(--bg);
  line-height: 1.6;
  font-size: var(--bs);
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* NAV */
nav {
  position: fixed; top: 0; left: 0; right: 0;
  background: var(--bg-nav, rgba(255,255,255,0.93));
  backdrop-filter: blur(10px);
  z-index: 100;
  border-bottom: 1px solid var(--border);
}
nav.hidden { display: none; }
nav.static { position: static; }
nav .container {
  display: flex; align-items: center;
  justify-content: space-between; height: 64px;
}
.brand-text { font-size: 22px; font-weight: 800; color: var(--tc); }
.brand-logo { height: 36px; margin-right: 8px; }
.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a {
  font-size: 14px; color: var(--sub);
  font-weight: 500; transition: color .2s;
}
.nav-links a:hover { color: var(--pc); }
.nav-cta {
  padding: 8px 20px; background: var(--pc); color: #fff !important;
  border-radius: var(--br); font-size: 13px; font-weight: 600;
  transition: transform .2s;
}
.nav-cta:hover { transform: scale(1.05); }
.mobile-toggle {
  display: none; background: none; border: none;
  font-size: 20px; color: var(--tc); cursor: pointer;
}

/* HERO */
.hero {
  padding: 120px 0 60px;
  text-align: center;
  position: relative;
}
.hero.has-bg { background-size: cover; background-position: center; }
.hero.has-bg::before {
  content: ""; position: absolute; inset: 0;
  background: var(--bg); opacity: 0.8; z-index: 0;
}
.hero.has-bg > * { position: relative; z-index: 1; }
.hero h1 {
  font-size: clamp(24px, 5vw, var(--hs));
  font-weight: 800; line-height: 1.3;
  margin-bottom: 16px; white-space: pre-line;
}
.hero p {
  font-size: clamp(14px, 2vw, 18px); color: var(--sub);
  max-width: 600px; margin: 0 auto 32px; white-space: pre-line;
}
.hero-img {
  max-width: 600px; width: 100%;
  border-radius: var(--cr); margin-top: 32px;
  box-shadow: var(--shadow);
}
.hero-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* BUTTONS */
.btn-primary {
  padding: 14px 32px; background: var(--pc); color: #fff;
  border-radius: var(--br); font-size: 16px; font-weight: 600;
  transition: transform .2s; border: none; cursor: pointer;
  display: inline-block;
}
.btn-primary:hover { transform: scale(1.05); }
.btn-secondary {
  padding: 14px 32px; border: 2px solid var(--border);
  color: var(--tc); border-radius: var(--br); font-size: 16px;
  font-weight: 500; transition: all .2s; display: inline-block;
}
.btn-secondary:hover { border-color: var(--pc); color: var(--pc); }

/* STATS BAR */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(var(--gc), 1fr);
  gap: 16px; margin-top: 48px;
}
.stat-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--cr); padding: 20px;
  text-align: center; box-shadow: var(--shadow);
}
.stat-card .val { font-size: 28px; font-weight: 800; color: var(--pc); }
.stat-card .lbl { font-size: 13px; color: var(--sub); margin-top: 4px; }

/* SECTIONS */
section { padding: var(--sp) 0; }
.section-tag {
  font-size: 12px; font-weight: 700; color: var(--pc);
  text-transform: uppercase; letter-spacing: 2px; margin-bottom: 8px;
}
.section-title {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800; margin-bottom: 16px;
}
.section-desc { font-size: 16px; color: var(--sub); max-width: 600px; }

/* SERVICES */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px; margin-top: 40px;
}
.service-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--cr); padding: 28px; box-shadow: var(--shadow);
}
.service-card .icon { font-size: 36px; margin-bottom: 16px; }
.service-card .svc-img {
  width: 100%; height: 160px; object-fit: cover;
  border-radius: calc(var(--cr) - 4px); margin-bottom: 16px;
}
.service-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.service-card p { font-size: 14px; color: var(--sub); line-height: 1.6; }

/* PROCESS */
.process-section { background: var(--card); }
.process-section .container { text-align: center; }
.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px; margin-top: 40px;
}
.process-step { text-align: center; padding: 24px; }
.process-step .num {
  display: inline-flex; width: 48px; height: 48px;
  align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--pc) 10%, transparent);
  color: var(--pc); border-radius: 12px;
  font-size: 18px; font-weight: 800; margin-bottom: 16px;
}
.process-step h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.process-step p { font-size: 13px; color: var(--sub); }

/* REVIEWS */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px; margin-top: 40px;
}
.review-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--cr); padding: 24px; box-shadow: var(--shadow);
}
.review-stars { color: #fbbf24; margin-bottom: 12px; }
.review-text {
  font-size: 14px; color: var(--sub); line-height: 1.7;
  margin-bottom: 16px; font-style: italic;
}
.review-author { font-size: 14px; font-weight: 600; }
.review-company { font-size: 12px; color: var(--sub); }

/* CTA BANNER */
.cta-banner {
  background: var(--pc); border-radius: calc(var(--cr) + 4px);
  padding: 60px 40px; text-align: center; color: #fff; margin: 0 20px;
}
.cta-banner h2 {
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 800; margin-bottom: 12px;
}
.cta-banner p {
  font-size: 16px; opacity: .9; margin-bottom: 28px;
  max-width: 500px; margin-left: auto; margin-right: auto;
}
.cta-banner a {
  display: inline-block; padding: 14px 36px;
  background: #fff; color: var(--pc); border-radius: var(--br);
  font-size: 16px; font-weight: 700; transition: transform .2s;
}
.cta-banner a:hover { transform: scale(1.05); }

/* CONTACT */
.contact-section {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 48px; margin-top: 40px;
}
.contact-info h3 { font-size: 22px; font-weight: 700; margin-bottom: 20px; }
.contact-item {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 16px; font-size: 14px; color: var(--sub);
}
.contact-item i { color: var(--pc); width: 20px; text-align: center; }
.contact-form {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--cr); padding: 28px;
}
.form-row { margin-bottom: 16px; }
.contact-form label {
  display: block; font-size: 12px; font-weight: 600;
  color: var(--sub); margin-bottom: 6px;
}
.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%; padding: 10px 14px;
  border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; background: var(--bg); color: var(--tc);
  outline: none; font-family: var(--ff);
}
.contact-form input:focus,
.contact-form textarea:focus { border-color: var(--pc); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.budget-options { display: flex; flex-wrap: wrap; gap: 8px; }
.budget-opt {
  padding: 6px 14px; border: 1px solid var(--border);
  border-radius: 20px; font-size: 12px; cursor: pointer;
  color: var(--sub); transition: all .2s;
}
.budget-opt:hover,
.budget-opt.selected {
  background: color-mix(in srgb, var(--pc) 10%, transparent);
  border-color: var(--pc); color: var(--pc);
}
.submit-btn {
  width: 100%; padding: 14px; background: var(--pc);
  color: #fff; border: none; border-radius: var(--br);
  font-size: 16px; font-weight: 600; cursor: pointer;
  transition: transform .2s; font-family: var(--ff);
}
.submit-btn:hover { transform: scale(1.02); }

/* FOOTER */
footer {
  background: var(--footer-bg, #111827);
  color: var(--footer-text, #9ca3af);
  padding: 40px 0; margin-top: 80px;
}
footer .container {
  display: flex; justify-content: space-between;
  align-items: center; flex-wrap: wrap; gap: 16px;
}
footer .brand-text { font-size: 18px; font-weight: 800; color: #fff; }
footer p { font-size: 13px; }

/* PARTICLES */
#particles-canvas {
  position: fixed; top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none; z-index: 0;
}

/* TYPING */
.typing-cursor {
  border-right: 3px solid var(--pc);
  animation: blink .7s infinite;
}
@keyframes blink {
  0%, 100% { border-color: var(--pc); }
  50% { border-color: transparent; }
}

/* HOVER EFFECTS */
.hoverable { transition: all .3s ease; }