@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Space+Grotesk:wght@300;400;500;600;700&display=swap");

:root {
  --paper: #fbf7f1;
  --paper-strong: #ffffff;
  --ink: #1b1f24;
  --muted: #5b6471;
  --accent: #e36a3d;
  --accent-soft: #f7d2c3;
  --stroke: rgba(27, 31, 36, 0.12);
  --shadow: 0 16px 32px rgba(27, 31, 36, 0.12);
  --radius: 16px;
}

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

body {
  font-family: "Inter", sans-serif;
  color: var(--ink);
  line-height: 1.5;
  background-color: #2c2e30;
  background-image:
    radial-gradient(
      circle at 30% 20%,
      rgba(255, 255, 255, 0.05) 0%,
      transparent 50%
    ),
    linear-gradient(
      145deg,
      rgba(255, 255, 255, 0.03) 0%,
      rgba(0, 0, 0, 0.1) 100%
    );
  background-size:
    cover,
    4px 4px;
}

a {
  color: inherit;
  text-decoration: none;
}

/* MAIN CONTAINER */
.book {
  background: var(--paper-strong);
  width: min(1120px, 100% - 10vw);
  margin: 38px auto 0; /* Changed bottom margin from 70px to 0 */
  padding: 40px 30px;
  padding-bottom: 0;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.hero-intro {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.hero-intro h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 16px;
}
.hero-intro p.lead {
  font-size: 1.2rem;
  color: var(--muted);
}

/* CARDS CORE STYLE */
.card {
  background: rgba(245, 247, 250, 0.4);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 0, 0, 0.05);
  outline: 1px solid rgba(255, 255, 255, 0.8);
  outline-offset: -2px;
  box-shadow:
    0 4px 6px -1px rgba(0, 0, 0, 0.05),
    0 20px 25px -5px rgba(0, 0, 0, 0.08),
    inset 0 0 15px rgba(255, 255, 255, 0.5);
  border-radius: 16px;
  padding: 24px;
}

/* PROJECT FEATURE CARDS */
.card-container {
  display: flex;
  align-items: stretch;
  gap: 2rem;
}

.project-feature {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-feature h3 {
  font-size: 1.6rem;
  margin-bottom: 12px;
  font-weight: 600;
}
.project-feature h4 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink);
  margin-bottom: 10px;
}
.project-feature .summary {
  font-size: 1.05rem;
  margin-bottom: 20px;
}
.project-feature .card-content {
  flex-grow: 1;
}

.cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
ul {
  padding-left: 18px;
  color: var(--muted);
  font-size: 0.95rem;
}
li + li {
  margin-top: 6px;
}

.chip {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #3f2d24;
  margin-bottom: 12px;
}

.actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 20px;
}

/* NARRATIVE SECTIONS */
.rigor-section {
  text-align: center;
  padding: 20px 0;
}
.rigor-content h2 {
  font-size: 2rem;
  margin-bottom: 15px;
}
.rigor-content p {
  max-width: 700px;
  margin: 0 auto 30px;
  font-size: 1.1rem;
  color: var(--muted);
}

.tech-badges {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}
.badge {
  padding: 6px 12px;
  background: var(--paper);
  border: 1px solid var(--stroke);
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
}

.adaptation-focus {
  padding: 20px 0;
}
.paper-card {
  background: #fff;
  padding: 40px;
  border: 1px solid var(--stroke);
  border-radius: 16px;
}
.paper-card .cols {
  display: flex;
  gap: 40px;
  align-items: center;
}
.paper-card .col {
  flex: 1;
}
.paper-card h3 {
  margin-bottom: 10px;
  font-size: 1.3rem;
}
.divider-v {
  width: 1px;
  height: 80px;
  background: var(--stroke);
  flex-shrink: 0;
}

.roadmap-section {
  padding: 20px 0;
}
.roadmap-intro {
  text-align: center;
  margin-bottom: 40px;
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.step-card {
  position: relative;
  padding: 30px 20px;
  background: var(--paper);
  border-radius: 16px;
  border: 1px solid var(--stroke);
}
.step-num {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  opacity: 0.15;
  position: absolute;
  top: 5px;
  right: 15px;
}
.step-card h4 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  color: var(--ink);
}
.step-card.active {
  border-color: var(--accent);
  background: #fff;
  box-shadow: var(--shadow);
}

/* FINAL CTA (DARK) */
.final-cta {
  background: var(--ink);
  color: #fff;
  padding: 60px 40px;
  border-radius: 24px 24px 0 0; /* Rounded top only to sit flat on footer */
  margin-top: 40px;
}

.engage-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}
.cta-text-content h2 {
  font-size: 2.2rem;
  color: #fff;
  margin-bottom: 20px;
  line-height: 1.1;
}
.cta-text-content p {
  color: #94a3b8;
  font-size: 1.1rem;
  margin-bottom: 30px;
}

.contact-glass {
  background: rgba(255, 255, 255, 0.03); /* Lighter background */
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 40px; /* More internal breathing room */
  border-radius: 20px;
  box-shadow: none; /* Remove heavy shadow inside dark section */
  outline: none; /* Remove the white inner edge for this specific card */
}

.contact-glass h3 {
  color: #fff;
  margin-bottom: 24px;
  font-size: 1.4rem;
  font-weight: 500;
}

.modern-form input,
.modern-form select,
.modern-form textarea {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  border-radius: 10px;
  margin-bottom: 16px;
  padding: 12px 16px;
  width: 100%;
  font-family: inherit;
  font-size: 1rem;
  transition:
    border-color 0.3s,
    background 0.3s;
}

.modern-form input:focus,
.modern-form select:focus,
.modern-form textarea:focus {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}

.modern-form select option {
  background: #1b1f24;
  color: #fff;
}
.modern-form input::placeholder,
.modern-form textarea::placeholder {
  color: #94a3b8;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* BUTTONS */
.button {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: transform 0.2s;
}
.button:hover {
  transform: translateY(-2px);
}
.button.ghost {
  background: transparent;
  color: var(--accent);
}
.button.whatsapp {
  background: #25d366;
  border-color: #25d366;
}

.direct-actions-modern { display: flex; gap: 12px; }

/* RESPONSIVE */

@media (max-width: 1024px) {
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .engage-grid {
    grid-template-columns: 1fr;
  }
  .card-container {
    flex-direction: column;
  }
}

@media (max-width: 760px) {
  .form-row {
    grid-template-columns: 1fr;
  }
  .paper-card .cols {
    flex-direction: column;
    gap: 30px;
  }
  .divider-v {
    display: none;
  }
  .footer.page {
    grid-template-columns: 1fr;
    padding: 40px 8vw 20px;
  }
  .cols {
    grid-template-columns: 1fr;
  }
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}