/* =========================================================
   TPVLogic — homepage stylesheet
   Theme: LIGHT golden yellow on warm pale-cream
   ========================================================= */

:root {
  --ink: #1F1C14;
  --ink-soft: #3B3625;
  --muted: #5C5442;
  --paper: #F7F8F3;
  --card: #FFFFFF;
  --line: #E8E3D2;
  --gold: #FACC15;
  --gold-deep: #D97706;
  --gold-soft: #FDE68A;
  --gold-pale: #FDF6DE;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(31, 28, 20, 0.08);
  --shadow-lg: 0 20px 50px rgba(31, 28, 20, 0.12);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background-color: var(--paper);
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: var(--gold-deep); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { list-style: none; }

h1, h2, h3, h4 {
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-deep);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--gold);
}

/* ---------- scroll reveal ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* =========================================================
   CPU-CHIP NAVIGATION
   ========================================================= */
.chip-nav {
  position: sticky;
  top: 0;
  z-index: 900;
  background: #FFFFFF;
  border-bottom: 1px solid var(--line);
}
.chip-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
  gap: 24px;
}
.chip-nav .brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.chip-nav .brand:hover { text-decoration: none; }

/* CPU chip icon */
.cpu-chip {
  position: relative;
  width: 34px;
  height: 34px;
  flex: none;
  display: inline-block;
}
.cpu-chip .pins {
  position: absolute;
  background: var(--gold-deep);
}
.cpu-chip .pins.top,
.cpu-chip .pins.bottom {
  left: 10px;
  width: 14px;
  height: 3px;
  background-image: linear-gradient(90deg, var(--gold-deep) 0 3px, transparent 3px 5px, var(--gold-deep) 5px 9px, transparent 9px 11px, var(--gold-deep) 11px 14px);
}
.cpu-chip .pins.top { top: 0; }
.cpu-chip .pins.bottom { bottom: 0; }
.cpu-chip .pins.left,
.cpu-chip .pins.right {
  top: 10px;
  height: 14px;
  width: 3px;
  background-image: linear-gradient(180deg, var(--gold-deep) 0 3px, transparent 3px 5px, var(--gold-deep) 5px 9px, transparent 9px 11px, var(--gold-deep) 11px 14px);
}
.cpu-chip .pins.left { left: 0; }
.cpu-chip .pins.right { right: 0; }
.cpu-chip .body {
  position: absolute;
  inset: 6px;
  background: linear-gradient(135deg, var(--gold-soft), var(--gold));
  border-radius: 4px;
  box-shadow: inset 0 0 0 1px var(--gold-deep);
}
.cpu-chip .core {
  position: absolute;
  inset: 12px;
  background: var(--gold-pale);
  border: 1px solid var(--gold-deep);
  border-radius: 2px;
}

.chip-nav .nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.chip-nav .nav-links a {
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}
.chip-nav .nav-links a:hover { color: var(--gold-deep); text-decoration: none; }

.chip-nav .cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gold);
  color: var(--ink);
  font-weight: 700;
  font-size: 0.92rem;
  padding: 11px 20px;
  border-radius: 8px;
  box-shadow: inset 0 0 0 1px var(--gold-deep);
  transition: background 0.2s ease, transform 0.2s ease;
}
.chip-nav .cta:hover {
  background: var(--gold-soft);
  text-decoration: none;
  transform: translateY(-1px);
}

.chip-nav .nav-toggle {
  display: none;
  background: var(--gold-pale);
  border: 1px solid var(--line);
  border-radius: 8px;
  width: 44px;
  height: 44px;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.chip-nav .nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
}

/* =========================================================
   DISPLAY-MONITOR HERO
   ========================================================= */
.display-hero {
  background: linear-gradient(180deg, #FDF6DE 0%, var(--paper) 100%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.display-hero .container {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 48px;
  padding-top: 72px;
  padding-bottom: 72px;
}
.display-hero .hero-copy h1 {
  font-size: clamp(2.1rem, 4.4vw, 3.4rem);
  margin: 18px 0 20px;
}
.display-hero .hero-copy h1 .gold {
  color: var(--gold-deep);
}
.display-hero .hero-copy p.lead {
  font-size: 1.12rem;
  color: var(--ink-soft);
  max-width: 540px;
  margin-bottom: 30px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.98rem;
  padding: 14px 26px;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn:hover { transform: translateY(-2px); text-decoration: none; }
.btn-primary {
  background: var(--gold);
  color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--gold-deep), var(--shadow);
}
.btn-primary:hover { background: var(--gold-soft); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--gold-deep);
}
.btn-ghost:hover { background: var(--gold-pale); }

/* monitor object */
.monitor-stage {
  display: flex;
  justify-content: center;
  align-items: center;
}
.monitor {
  width: min(440px, 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
}
.monitor .screen {
  width: 100%;
  aspect-ratio: 16 / 10;
  background: #17150F;
  border: 10px solid #2A2618;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.monitor .screen .bar {
  position: relative;
  top: 0;
  height: 12px;
  border-radius: 6px;
  background: var(--gold);
}
.monitor .screen .bar.w-60 { width: 60%; }
.monitor .screen .bar.w-80 { width: 80%; background: var(--gold-soft); }
.monitor .screen .bar.w-45 { width: 45%; }
.monitor .screen .bar.w-70 { width: 70%; background: var(--gold-soft); }
.monitor .screen .bar.w-90 { width: 90%; }
.monitor .screen .screen-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}
.monitor .screen .dot-row {
  display: flex;
  gap: 6px;
}
.monitor .screen .dot-row span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
}
.monitor .screen .dot-row span:nth-child(2) { background: var(--gold-deep); }
.monitor .screen .dot-row span:nth-child(3) { background: var(--gold-soft); }
.monitor .screen .tag {
  color: var(--gold-soft);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.monitor .neck {
  width: 42px;
  height: 26px;
  background: #2A2618;
}
.monitor .base {
  width: 140px;
  height: 14px;
  background: #2A2618;
  border-radius: 6px;
}

/* =========================================================
   STATEMENT ROW
   ========================================================= */
.statement-row {
  padding: 96px 0;
  background: var(--paper);
}
.statement-row .statement {
  font-size: clamp(1.7rem, 3.6vw, 2.9rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  max-width: 960px;
}
.statement-row .statement .gold { color: var(--gold-deep); }

/* =========================================================
   ABOUT
   ========================================================= */
.about-section {
  padding: 96px 0;
  background: var(--card);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}
.about-grid h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  margin: 14px 0 20px;
}
.about-grid p {
  color: var(--ink-soft);
  margin-bottom: 16px;
  font-size: 1.05rem;
}
.about-points {
  display: grid;
  gap: 18px;
  margin-top: 26px;
}
.about-points .point {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.about-points .point .num {
  flex: none;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--gold-pale);
  border: 1px solid var(--gold-deep);
  color: var(--gold-deep);
  font-weight: 800;
  display: grid;
  place-items: center;
  font-size: 0.95rem;
}
.about-points .point h3 { font-size: 1.05rem; margin-bottom: 4px; }
.about-points .point p { color: var(--muted); font-size: 0.97rem; margin: 0; }

/* =========================================================
   SERVICES
   ========================================================= */
.services-section {
  padding: 96px 0;
  background: var(--paper);
}
.services-section .head {
  max-width: 640px;
  margin-bottom: 52px;
}
.services-section .head h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  margin: 14px 0 18px;
}
.services-section .head p { color: var(--ink-soft); font-size: 1.05rem; }
.services-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
}
.service-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 4px solid var(--gold);
  border-radius: var(--radius);
  padding: 30px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.service-card .icon {
  width: 50px;
  height: 50px;
  border-radius: 10px;
  background: var(--gold-pale);
  border: 1px solid var(--gold-deep);
  display: grid;
  place-items: center;
  font-weight: 800;
  color: var(--gold-deep);
  font-size: 1.3rem;
  margin-bottom: 18px;
}
.service-card h3 { font-size: 1.25rem; margin-bottom: 10px; }
.service-card p { color: var(--muted); }

/* =========================================================
   STAT COLUMNS
   ========================================================= */
.stats-section {
  padding: 84px 0;
  background: var(--ink);
}
.stats-section .stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  text-align: center;
}
.stat .number {
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  font-weight: 800;
  color: var(--gold);
  letter-spacing: -0.03em;
}
.stat .label {
  color: #EFE9D6;
  font-weight: 600;
  margin-top: 6px;
  font-size: 1rem;
}

/* =========================================================
   PROCESS (numbered delivery list)
   ========================================================= */
.process-section {
  padding: 96px 0;
  background: var(--card);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.process-section .head { max-width: 640px; margin-bottom: 56px; }
.process-section .head h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  margin: 14px 0 18px;
}
.process-section .head p { color: var(--ink-soft); font-size: 1.05rem; }
.process-list { position: relative; }
.process-list::before {
  content: "";
  position: absolute;
  top: 24px;
  bottom: 24px;
  left: 24px;
  width: 2px;
  background: var(--gold-soft);
}
.process-step {
  position: relative;
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 24px;
  padding-bottom: 36px;
}
.process-step:last-child { padding-bottom: 0; }
.process-step .node {
  position: relative;
  z-index: 1;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--gold);
  border: 2px solid var(--gold-deep);
  color: var(--ink);
  font-weight: 800;
  font-size: 1rem;
  display: grid;
  place-items: center;
}
.process-step .step-body h3 { font-size: 1.25rem; margin-bottom: 8px; }
.process-step .step-body p { color: var(--muted); max-width: 640px; }

/* =========================================================
   COMPARISON TABLE
   ========================================================= */
.compare-section {
  padding: 96px 0;
  background: var(--paper);
}
.compare-section .head { max-width: 680px; margin-bottom: 52px; }
.compare-section .head h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  margin: 14px 0 18px;
}
.compare-section .head p { color: var(--ink-soft); font-size: 1.05rem; }
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
}
.compare-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
}
.compare-card.negative { border-top: 4px solid #B45309; }
.compare-card.positive {
  border-top: 4px solid var(--gold);
  box-shadow: var(--shadow);
}
.compare-card h3 {
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
}
.compare-card.negative h3 { color: #B45309; }
.compare-card.positive h3 { color: var(--gold-deep); }
.compare-card ul li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
  color: var(--ink-soft);
}
.compare-card ul li:last-child { border-bottom: 0; }
.compare-card ul li .mark {
  flex: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.8rem;
  font-weight: 800;
  margin-top: 2px;
}
.compare-card.negative .mark { background: #FDE8E8; color: #B45309; }
.compare-card.positive .mark { background: var(--gold-pale); color: var(--gold-deep); }

/* =========================================================
   TESTIMONIAL SLIDER
   ========================================================= */
.testimonial-section {
  padding: 96px 0;
  background: linear-gradient(180deg, var(--gold-pale) 0%, var(--paper) 100%);
  border-top: 1px solid var(--line);
}
.testimonial-section .head { max-width: 640px; margin-bottom: 48px; }
.testimonial-section .head h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  margin: 14px 0 18px;
}
.testimonial-section .head p { color: var(--ink-soft); font-size: 1.05rem; }
.slider {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
}
.slider-viewport {
  overflow: hidden;
  border-radius: var(--radius);
}
.slider-track {
  display: flex;
  transition: transform 0.5s ease;
}
.slide {
  flex: 0 0 100%;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 44px;
  text-align: center;
}
.slide .quote {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--ink-soft);
  font-weight: 500;
  margin-bottom: 24px;
}
.slide .author {
  font-weight: 800;
  color: var(--ink);
}
.slide .role {
  color: var(--muted);
  font-size: 0.92rem;
}
.slider-controls {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 26px;
}
.slider-controls button {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--gold-deep);
  background: var(--card);
  color: var(--gold-deep);
  font-size: 1.1rem;
  cursor: pointer;
  transition: background 0.2s ease;
}
.slider-controls button:hover { background: var(--gold-pale); }
.slider-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 18px;
}
.slider-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid var(--gold-deep);
  background: transparent;
  cursor: pointer;
}
.slider-dots .dot.active { background: var(--gold); }

/* =========================================================
   CONTACT
   ========================================================= */
.contact-section {
  padding: 96px 0;
  background: var(--card);
  border-top: 1px solid var(--line);
}
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
}
.contact-info h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  margin: 14px 0 18px;
}
.contact-info p { color: var(--ink-soft); margin-bottom: 26px; font-size: 1.05rem; }
.contact-info .line {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
  color: var(--ink-soft);
}
.contact-info .line:last-child { border-bottom: 0; }
.contact-info .line .label { font-weight: 800; color: var(--ink); min-width: 74px; }
.contact-form {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px;
}
.form-field { margin-bottom: 18px; }
.form-field label {
  display: block;
  font-weight: 700;
  margin-bottom: 7px;
  color: var(--ink);
  font-size: 0.95rem;
}
.form-field input,
.form-field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px 14px;
  font-family: inherit;
  font-size: 1rem;
  color: var(--ink);
  background: var(--card);
}
.form-field input:focus,
.form-field textarea:focus {
  outline: 2px solid var(--gold);
  outline-offset: 1px;
  border-color: var(--gold-deep);
}
.form-field textarea { resize: vertical; min-height: 130px; }
.form-note {
  font-size: 0.88rem;
  color: var(--muted);
  margin-top: 14px;
}

/* =========================================================
   SPLIT CTA BAND
   ========================================================= */
.cta-band {
  padding: 84px 0;
  background: var(--paper);
}
.cta-band .cta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
}
.cta-panel {
  border-radius: var(--radius);
  padding: 42px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.cta-panel.gold {
  background: var(--gold);
  color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--gold-deep);
}
.cta-panel.dark {
  background: var(--ink);
  color: #EFE9D6;
}
.cta-panel h3 { font-size: 1.6rem; }
.cta-panel.gold h3 { color: var(--ink); }
.cta-panel.dark h3 { color: #FFFFFF; }
.cta-panel p { color: var(--ink-soft); }
.cta-panel.dark p { color: #D8D1BA; }
.cta-panel .btn { align-self: flex-start; }
.cta-panel.dark .btn-primary { background: var(--gold); color: var(--ink); }
.cta-panel.dark .btn-ghost {
  border-color: var(--gold);
  color: var(--gold);
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
  background: var(--ink);
  color: #D8D1BA;
  border-top: 3px solid var(--gold);
}
.site-footer .footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  padding: 56px 0 40px;
}
.site-footer .footer-brand .brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.2rem;
  color: #FFFFFF;
  margin-bottom: 16px;
}
.site-footer .footer-brand p { font-size: 0.95rem; max-width: 320px; }
.site-footer h4 {
  color: var(--gold);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 18px;
}
.site-footer ul li { margin-bottom: 10px; }
.site-footer ul li a { color: #D8D1BA; font-size: 0.95rem; }
.site-footer ul li a:hover { color: var(--gold); }
.site-footer .footer-bottom {
  border-top: 1px solid #3B3625;
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.88rem;
  color: #A9A286;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 960px) {
  .display-hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-top: 52px;
    padding-bottom: 56px;
  }
  .monitor { max-width: 420px; }
  .about-grid,
  .contact-grid,
  .compare-grid,
  .cta-band .cta-grid {
    grid-template-columns: 1fr;
  }
  .stats-section .stats-grid { grid-template-columns: 1fr 1fr; }
  .services-list { grid-template-columns: 1fr; }
  .site-footer .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .chip-nav .nav-toggle { display: flex; }
  .chip-nav .nav-links {
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #FFFFFF;
    border-bottom: 1px solid var(--line);
    padding: 8px 24px 20px;
    display: none;
  }
  .chip-nav .nav-links.open { display: flex; }
  .chip-nav .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .chip-nav .nav-links a:last-child { border-bottom: 0; }
  .chip-nav .cta { display: none; }
  .display-hero .container { padding-top: 40px; }
  .process-list::before { left: 22px; }
  .process-step { grid-template-columns: 46px 1fr; gap: 18px; }
  .process-step .node { width: 46px; height: 46px; }
  .statement-row { padding: 64px 0; }
  .about-section,
  .services-section,
  .process-section,
  .compare-section,
  .testimonial-section,
  .contact-section { padding: 64px 0; }
  .site-footer .footer-grid { grid-template-columns: 1fr; }
  .slide { padding: 28px; }
}