/* =========================
   THEME VARIABLES
========================= */

:root {
  --bg-color: #0f1220;
  --card-bg: #171a2f;
  --text-color: #ffffff;
  --muted-text: #b5b7d2;
  --accent-color: #6c63ff;
  --border-color: #2a2d4d;
  --input-bg: #1f2340;
  --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.light-theme {
  --bg-color: #f5f6fa;
  --card-bg: #ffffff;
  --text-color: #1a1a1a;
  --muted-text: #555555;
  --accent-color: #6c63ff;
  --border-color: #dddddd;
  --input-bg: #f0f0f0;
  --card-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

/* =========================
   GLOBAL
========================= */

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

body {
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  line-height: 1.65;
}

/* =========================
   HEADER
========================= */

header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
}

.navbar {
  max-width: 1100px;
  margin: auto;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-links {
  display: flex;
  gap: 1rem;
}

#theme-toggle {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-color);
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.25s ease, transform 0.25s ease;
}

#theme-toggle:hover {
  background-color: var(--input-bg);
  transform: rotate(8deg);
}

/* =========================
   HERO
========================= */

.hero {
  max-width: 900px;
  margin: 3rem auto 2.5rem;
  padding: 0 1rem;
  text-align: center;
}

.hero h1 {
  font-size: 2.2rem;
  margin-bottom: 0.6rem;
}

.hero p {
  max-width: 600px;
  margin: auto;
  color: var(--muted-text);
}

/* =========================
   MAIN
========================= */

main {
  max-width: 900px;
  margin: auto;
  padding: 0 1rem;
}

/* CENTER EACH MAIN SECTION */
.calculator,
.insight,
.education,
.popular-guides,
.calculator-link,
.footer {
  display: flex;
  justify-content: center;
  margin-bottom: 2rem;
}

/* =========================
   CARD (POLISHED)
========================= */

.card {
  width: 100%;
  max-width: 500px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.75rem;
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

/* Hover effect (desktop only) */
@media (hover: hover) {
  .card:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-shadow);
  }
}

/* =========================
   FORM
========================= */

label {
  display: block;
  text-align: left;
  margin-bottom: 0.35rem;
  color: var(--muted-text);
  font-size: 0.9rem;
}

input,
select {
  width: 100%;
  padding: 0.65rem;
  margin-bottom: 1.1rem;
  background: var(--input-bg);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  border-radius: 6px;
}

input:focus,
select:focus {
  outline: none;
 box-shadow: 0 0 0 2px rgba(108, 99, 255, 0.25);
  border-color: var(--accent-color);
}

/* =========================
   INPUT HINTS
========================= */

.input-hint {
  display: block;
  margin-top: -0.6rem;
  margin-bottom: 0.8rem;
  font-size: 0.75rem;
  color: var(--muted-text);
  opacity: 0.85;
}


/* =========================
   RESULT
========================= */

.result-value {
  font-size: 2.3rem;
  color: var(--accent-color);
  margin-bottom: 0.4rem;
}

.result-label,
.insight p {
  color: var(--muted-text);
  text-align: center;
}


/* Improve vertical spacing between result blocks */
.result-card {
  margin-bottom: 1.0rem;
}

.copy-btn,
.reset-btn {
  margin-top: 0.75rem;
}

.cm360-card,
#cm360-result {
  margin-top: 1.0rem;
}

.result-card,
.cm360-card,
.reference-card {
  margin-top: 1.5rem;
}


/* =========================
   EDUCATION (TEXT LEFT ONLY)
========================= */

.education .card {
  text-align: left;
}

.education h3 {
  margin-top: 1.1rem;
  margin-bottom: 0.4rem;
}

.education ul {
  padding-left: 1.2rem;
}

.education li {
  margin-bottom: 0.45rem;
}

.faq h3 {
  margin-top: 1.5rem;
}

.faq p {
  margin-bottom: 1rem;
}


/* =========================
   FOOTER
========================= */

footer {
  background: var(--card-bg);
  border-top: 1px solid var(--border-color);
  margin-top: 3rem;
}

.footer-links {
  max-width: 900px;
  margin: auto;
  padding: 1.6rem 1rem;
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* =========================
   RESPONSIVE
========================= */

@media (max-width: 600px) {
  .hero h1 {
    font-size: 1.85rem;
  }
}


@media (max-width: 600px) {

  .card {
    padding: 1.25rem;
  }

  .input-group {
    margin-bottom: 1.25rem;
  }

  .result-card h3 {
    font-size: 1.2rem;
  }

  #edpi-result {
    font-size: 2rem;
  }

  .copy-btn,
  .reset-btn {
    width: 100%;
    margin-top: 0.75rem;
  }

  .copy-btn.secondary {
    width: 100%;
  }
}


/* =========================
   RESULT ANIMATION
========================= */

.result-value {
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.result-animate {
  transform: scale(1.08);
  opacity: 0.85;
}

/* =========================
   TYPOGRAPHY POLISH
========================= */

/* Card headings */
.card h2,
.card h3 {
  line-height: 1.3;
  font-weight: 600;
}

/* Paragraph readability */
.card p,
.education li {
  line-height: 1.75;
  font-size: 0.95rem;
}

/* Insight text spacing */
.insight p {
  margin-top: 0.6rem;
}

/* Education section refinement */
.education h3 {
  font-size: 1.05rem;
}

.education ul {
  margin-top: 0.5rem;
}

/* =========================
   FINAL MICRO INTERACTIONS
========================= */

/* Theme toggle press feedback */
#theme-toggle:active {
  transform: scale(0.92);
}

/* Subtle section rhythm balance */
.calculator,
.insight,
.education {
  padding-top: 0.25rem;
}

/* Slight breathing room after result */
.result-value {
  letter-spacing: 0.5px;
}

/* SEO intro */
.seo-intro {
  max-width: 700px;
  margin: 0 auto 2rem;
  padding: 0 1rem;
  text-align: center;
  color: var(--muted-text);
  font-size: 0.95rem;
}

.copy-btn {
  font-weight: 600;
}

.copy-btn.secondary {
  font-weight: 500;
  opacity: 0.85;
}

.reset-btn {
  opacity: 0.7;
}

.trust-section ul {
  margin-top: 1rem;
  padding-left: 1.2rem;
}

.trust-section li {
  margin-bottom: 0.4rem;
}


/* =========================
   NAVBAR LINK VISIBILITY FIX
========================= */

.nav-links a {
  color: var(--text-color);
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--accent-color);
}

/* =========================
   FOOTER LINK VISIBILITY FIX
========================= */

.footer .nav-links a {
  color: var(--muted-text);
}

.footer .nav-links a:hover {
  color: var(--accent-color);
}

/* =========================
   COPY eDPI BUTTON
========================= */

.copy-btn {
  margin-top: 0.8rem;
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
  background-color: var(--accent-color);
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.copy-btn:hover {
  opacity: 0.85;
}

/* =========================
   RESET BUTTON
========================= */

.reset-btn {
  margin-top: 0.6rem;
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
  background-color: transparent;
  color: var(--muted-text);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.reset-btn:hover {
  background-color: var(--border-color);
  color: var(--text-color);
}


/* =========================
   CM/360 RESULT
========================= */
#cm360-result {
  font-size: 1.6rem;
  font-weight: bold;
  color: var(--accent-color);
}

/* cm/360 separation */
.result-card + .cm360-card,
.result-card + .result-card {
  margin-top: 0.5rem;
}



/* =========================
   SENSITIVITY REFERENCE
========================= */

.reference-card {
  margin-top: 1.2rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--border-color);
  font-size: 0.85rem;
  color: var(--muted-text);
}

.reference-card h4 {
  margin-bottom: 0.5rem;
  color: var(--text-color);
}


#preset {
  cursor: pointer;
}

.copy-btn.secondary {
  margin-top: 0.75rem;
  opacity: 0.9;
}


.gear-section {
  margin-top: 3rem;
}

.gear-item {
  margin-top: 1.5rem;
}