/* ========================================================
   TukangSerpis — Loggd-inspired Dark Professional Theme
   ======================================================== */

/* === Design Tokens === */
:root {
  --bg-primary: #030712;
  --bg-secondary: #0b1222;
  --bg-card: #0f1729;
  --bg-hover: #1a2436;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #0ea5e9;
  --accent-glow: rgba(14, 165, 233, 0.25);
  --border: rgba(255,255,255,0.06);
  --border-light: rgba(255,255,255,0.10);
  --shadow-card: 0 1px 2px rgba(0,0,0,0.5), 0 4px 24px rgba(0,0,0,0.3);
  --shadow-glow: 0 0 40px var(--accent-glow);
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

.app.light {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-hover: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border: rgba(0,0,0,0.06);
  --border-light: rgba(0,0,0,0.08);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.08), 0 4px 16px rgba(0,0,0,0.04);
  --shadow-glow: 0 0 40px rgba(14, 165, 233, 0.12);
}

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 100px; }

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

.app { min-height: 100vh; }

/* === Typography === */
h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); font-weight: 800; line-height: 1.12; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.4rem); font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
h3 { font-size: 1.25rem; font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }

.eyebrow {
  font-size: 0.8rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.12em; color: var(--accent); margin-bottom: 0.75rem;
}

.sectionSub {
  color: var(--text-secondary); font-size: 1.1rem; max-width: 600px;
  margin: 0.75rem auto 0;
}

/* === Layout === */
section { padding: 5rem 1.5rem; max-width: 1200px; margin: 0 auto; text-align: center; }

/* === Header === */
header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 0.75rem 1.5rem; transition: var(--transition);
  border-bottom: 1px solid transparent;
}
header.scrolled {
  background: var(--bg-primary); border-color: var(--border);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
}
.headerInner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.brand {
  display: flex; align-items: center; gap: 0.5rem;
  text-decoration: none; color: var(--text-primary); font-size: 0.85rem; letter-spacing: 0.08em;
}
.logo {
  width: 40px; height: 40px; border-radius: 8px;
  object-fit: contain;
}
.brand b { color: var(--accent); }

nav { display: flex; gap: 0.25rem; }
nav a {
  text-decoration: none; color: var(--text-secondary); font-size: 0.88rem; font-weight: 500;
  padding: 0.5rem 0.9rem; border-radius: 8px; transition: var(--transition);
}
nav a:hover { color: var(--text-primary); background: var(--bg-hover); }

.headerActions { display: flex; align-items: center; gap: 0.5rem; }
.headerActions button {
  background: var(--bg-hover); border: 1px solid var(--border); color: var(--text-secondary);
  border-radius: 8px; width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: var(--transition);
}
.headerActions button:last-of-type { width: auto; padding: 0 0.5rem; font-size: 0.75rem; font-weight: 600; gap: 0.25rem; }
.headerActions button:hover { color: var(--text-primary); border-color: var(--border-light); }

.btnWa {
  background: var(--accent); color: #fff; text-decoration: none;
  padding: 0.45rem 1.1rem; border-radius: 8px; font-size: 0.85rem; font-weight: 600;
  transition: var(--transition); white-space: nowrap;
}
.btnWa:hover { box-shadow: var(--shadow-glow); filter: brightness(1.1); }

/* === Hero === */
.hero { padding-top: 7rem; padding-bottom: 4rem; }
.heroGrid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 3rem;
  align-items: center; text-align: left; max-width: 1100px; margin: 0 auto;
}
.heroText h1 { margin: 1rem 0; }
.heroSub { color: var(--text-secondary); font-size: 1.15rem; line-height: 1.7; margin-bottom: 2rem; }
.heroCtas { display: flex; gap: 1rem; flex-wrap: wrap; }

.pill {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: var(--bg-card); border: 1px solid var(--border);
  padding: 0.4rem 1rem; border-radius: 99px; font-size: 0.85rem; color: var(--text-secondary);
}

.primary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: var(--accent); color: #fff; text-decoration: none;
  padding: 0.85rem 1.8rem; border-radius: var(--radius-sm); font-weight: 700; font-size: 1rem;
  transition: var(--transition); box-shadow: var(--shadow-glow);
}
.primary:hover { filter: brightness(1.15); transform: translateY(-2px); }

.secondary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: var(--bg-card); color: var(--text-primary); text-decoration: none;
  border: 1px solid var(--border); padding: 0.85rem 1.8rem; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 1rem; transition: var(--transition);
}
.secondary:hover { border-color: var(--accent); background: var(--bg-hover); }

.trustChips {
  display: flex; gap: 1.5rem; margin-top: 2rem; flex-wrap: wrap;
}
.trustChips > div {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.3rem 0.4rem;
}
.trustChips b { font-size: 1rem; color: var(--accent); }
.trustChips span { font-size: 0.8rem; color: var(--text-muted); }

/* === Hero Visual === */
.heroVisual { display: flex; justify-content: center; }
.heroCard {
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 2.5rem; text-align: center;
  max-width: 340px; box-shadow: var(--shadow-card), var(--shadow-glow);
  transition: var(--transition);
}
.heroCard:hover { transform: translateY(-4px); }
.heroCardIcon {
  width: 80px; height: 80px; border-radius: 20px;
  background: linear-gradient(135deg, var(--accent), #6366f1);
  display: flex; align-items: center; justify-content: center; margin: 0 auto 1rem; color: #fff;
}
.heroCard h3 { margin-bottom: 0.5rem; }
.heroCard > p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 1.5rem; }
.heroStats {
  display: flex; gap: 1.2rem; justify-content: center;
  padding-top: 1.2rem; border-top: 1px solid var(--border);
}
.heroStats b { display: block; font-size: 1.1rem; color: var(--accent); }
.heroStats span { font-size: 0.7rem; color: var(--text-muted); }

/* === Pain Section === */
.painSection { background: linear-gradient(180deg, var(--bg-primary), var(--bg-secondary)); border: 1px solid var(--border); border-left: none; border-right: none; }
.painGrid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
  margin-top: 3rem; max-width: 1000px; margin-left: auto; margin-right: auto;
}
.painCard {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 1.5rem; text-align: left;
  transition: var(--transition);
}
.painCard:hover { transform: translateY(-3px); border-color: var(--border-light); }
.painProblem { display: flex; align-items: flex-start; gap: 0.75rem; margin-bottom: 1rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border); }
.painSolution { display: flex; align-items: flex-start; gap: 0.75rem; }
.painArrow { font-size: 1rem; margin-top: 0.15rem; color: #ef4444; }
.painArrow.green { color: #22c55e; }
.painCard p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.6; }

/* === Services Section === */
.servicesSection { max-width: 1150px; }
.servicesGrid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
  margin-top: 3rem;
  text-align: left;
}
.serviceCard {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 1.8rem;
  text-decoration: none; color: inherit; transition: var(--transition);
  position: relative; overflow: hidden;
}
.serviceCard::before {
  content: ''; position: absolute; inset: 0;
  border-radius: var(--radius-md); padding: 1.5px;
  background: linear-gradient(135deg, var(--accent), transparent 60%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity 0.3s;
}
.serviceCard:hover { transform: translateY(-6px); border-color: var(--accent); box-shadow: 0 8px 32px rgba(14,165,233,0.15); }
.serviceCard:hover::before { opacity: 1; }
.serviceNum {
  position: absolute; top: 1.2rem; right: 1.5rem;
  font-size: 3.5rem; font-weight: 900; color: var(--border); line-height: 1;
}
.serviceHead { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.75rem; }
.serviceMod { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--accent); }
.serviceHead svg { color: var(--accent); }
.serviceCard h3 { margin-bottom: 0.5rem; position: relative; z-index: 1; }
.serviceCard > p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; margin-bottom: 1rem; }
.servicePoints { list-style: none; display: flex; flex-direction: column; gap: 0.4rem; }
.servicePoints li { display: flex; align-items: center; gap: 0.5rem; font-size: 0.85rem; color: var(--text-muted); }
.servicePoints li svg { color: var(--accent); flex-shrink: 0; }

/* === How Section === */
.howSection { background: var(--bg-secondary); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.stepsGrid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem;
  margin-top: 3rem; max-width: 1000px; margin-left: auto; margin-right: auto;
}
.stepCard {
  text-align: center; padding: 2rem 1.2rem;
  position: relative; transition: var(--transition);
}
.stepNum {
  font-size: 3.5rem; font-weight: 900; color: var(--border); line-height: 1;
  margin-bottom: 0.5rem;
}
.stepCard svg { color: var(--accent); margin-bottom: 0.75rem; }
.stepCard h4 { margin-bottom: 0.5rem; }
.stepCard p { color: var(--text-secondary); font-size: 0.88rem; line-height: 1.6; }

/* === Why Section === */
.whyGrid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 3rem;
  align-items: center; text-align: left; max-width: 1000px; margin: 0 auto;
}
.whyList { list-style: none; margin-top: 1.5rem; display: flex; flex-direction: column; gap: 0.8rem; }
.whyList li { display: flex; align-items: flex-start; gap: 0.8rem; color: var(--text-secondary); font-size: 1rem; line-height: 1.5; }
.whyList li svg { color: var(--accent); flex-shrink: 0; margin-top: 0.2rem; }
.whyStats { display: flex; flex-direction: column; gap: 1rem; }
.statCard {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 1.5rem;
  display: flex; flex-direction: column; align-items: center; text-align: center;
  transition: var(--transition);
}
.statCard:hover { border-color: var(--accent); transform: translateX(4px); }
.statCard svg { color: var(--accent); margin-bottom: 0.5rem; }
.statCard b { font-size: 1.5rem; color: var(--text-primary); }
.statCard span { font-size: 0.85rem; color: var(--text-muted); }

/* === Reviews === */
.reviewsSection { background: linear-gradient(0deg, var(--bg-primary), var(--bg-secondary)); }
.reviewsGrid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
  margin-top: 3rem; max-width: 1000px; margin-left: auto; margin-right: auto;
}
.reviewCard {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 1.8rem; text-align: left;
  transition: var(--transition);
}
.reviewCard:hover { border-color: var(--border-light); transform: translateY(-3px); }
.stars { color: #f59e0b; font-size: 1rem; margin-bottom: 0.75rem; letter-spacing: 0.1em; }
.reviewCard p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.7; font-style: italic; margin-bottom: 1rem; }
.reviewCard b { color: var(--text-primary); font-size: 0.88rem; }

/* === Area === */
.areaGrid { display: flex; flex-wrap: wrap; gap: 0.8rem; justify-content: center; margin-top: 2rem; }
.areaTag {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: var(--bg-card); border: 1px solid var(--border);
  padding: 0.7rem 1.4rem; border-radius: 99px; font-size: 0.9rem; font-weight: 500;
  color: var(--text-primary); transition: var(--transition);
}
.areaTag:hover { border-color: var(--accent); background: var(--bg-hover); }

/* === Digital Section === */
.digitalSection { background: var(--bg-secondary); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.digitalSection p { color: var(--text-secondary); font-size: 1.05rem; max-width: 650px; margin: 1rem auto 0; }

/* === FAQ === */
.faqList { max-width: 700px; margin: 2.5rem auto 0; display: flex; flex-direction: column; gap: 0.75rem; }
.faqItem { text-align: left; }
.faqItem button {
  width: 100%; text-align: left; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 1rem 1.3rem; font-size: 1rem; font-weight: 500;
  color: var(--text-primary); cursor: pointer; display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; transition: var(--transition); font-family: var(--font);
}
.faqItem button:hover { background: var(--bg-hover); }
.faqItem button svg { transition: transform 0.25s; color: var(--text-muted); flex-shrink: 0; }
.faqItem button svg.rot { transform: rotate(180deg); }
.faqAnswer {
  background: var(--bg-card); border: 1px solid var(--border); border-top: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm); padding: 0 1.3rem 1.2rem;
}
.faqAnswer p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.7; }

/* === Final CTA === */
.finalSection {
  text-align: center; padding: 6rem 1.5rem;
  background: linear-gradient(180deg, var(--bg-primary), var(--bg-secondary));
}
.finalSection h2 { margin-bottom: 0.75rem; }
.finalSection p { color: var(--text-secondary); font-size: 1.1rem; margin-bottom: 2rem; }

/* === Footer === */
footer {
  border-top: 1px solid var(--border); padding: 3rem 1.5rem 1.5rem;
  background: var(--bg-primary);
}
.footerInner {
  max-width: 1100px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 2fr; gap: 3rem;
}
.footerBrand { text-align: left; }
.footerBrand a { font-size: 1rem; margin-bottom: 0.5rem; }
.footerBrand p { color: var(--text-muted); font-size: 0.85rem; }
.footerLinks { display: flex; gap: 3rem; justify-content: flex-end; text-align: left; }
.footerLinks h4 { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; }
.footerLinks a {
  display: block; color: var(--text-secondary); text-decoration: none;
  font-size: 0.9rem; margin-bottom: 0.4rem; transition: var(--transition);
}
.footerLinks a:hover { color: var(--accent); }
.footerBottom {
  max-width: 1100px; margin: 2rem auto 0; padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
}
.footerBottom p { color: var(--text-muted); font-size: 0.8rem; }

/* === Floating WhatsApp === */
.floatWa {
  position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 200;
  width: 60px; height: 60px; border-radius: 50%;
  background: #25D366; color: #fff; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 24px rgba(37,211,102,0.4);
  text-decoration: none; transition: var(--transition);
  animation: floatPulse 2.5s infinite;
}
.floatWa:hover { transform: scale(1.1); box-shadow: 0 6px 32px rgba(37,211,102,0.55); }
@keyframes floatPulse {
  0%, 100% { box-shadow: 0 4px 24px rgba(37,211,102,0.35); }
  50% { box-shadow: 0 4px 36px rgba(37,211,102,0.6); }
}

/* === Responsive === */
@media (max-width: 1024px) {
  .heroGrid { grid-template-columns: 1fr; text-align: center; }
  .heroText { order: 1; }
  .heroVisual { order: 2; }
  .heroCtas { justify-content: center; }
  .trustChips { justify-content: center; }
  .servicesGrid { grid-template-columns: repeat(2, 1fr); }
  .stepsGrid { grid-template-columns: repeat(2, 1fr); }
  .whyGrid { grid-template-columns: 1fr; }
  .reviewsGrid { grid-template-columns: 1fr; }
  .painGrid { grid-template-columns: 1fr; }
  .footerInner { grid-template-columns: 1fr; }
  .footerLinks { justify-content: flex-start; flex-wrap: wrap; }
}

@media (max-width: 768px) {
  header { padding: 0.5rem 1rem; }
  nav { display: none; }
  section { padding: 3.5rem 1rem; }
  .servicesGrid { grid-template-columns: 1fr; }
  .stepsGrid { grid-template-columns: 1fr; }
  .heroCtas { flex-direction: column; align-items: center; }
  .floatWa { width: 50px; height: 50px; bottom: 1rem; right: 1rem; }
  .headerActions button:last-of-type { display: none; }
  .btnWa { font-size: 0.8rem; padding: 0.4rem 0.9rem; }
}