/*
Theme Name: Cocoon Child
Template: cocoon-master
*/
@import url('../cocoon-master/style.css');


/* ============================================================
   Fujiwara Intelligence Lab — Tesla-inspired Design System
   ============================================================ */

:root {
  --fil-black: #111111;
  --fil-dark: #1f2933;
  --fil-gray: #6b7280;
  --fil-light-gray: #f5f5f7;
  --fil-border: #e5e7eb;
  --fil-white: #ffffff;
  --fil-blue: #2563eb;
  --fil-blue-dark: #1d4ed8;
  --fil-accent: #0f172a;
  --fil-radius: 16px;
  --fil-transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --fil-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --fil-shadow-hover: 0 8px 40px rgba(0, 0, 0, 0.14);
  --fil-max-width: 1440px;
  --fil-content-width: 1140px;
}

/* ── Reset ────────────────────────────── */
.fil-page * {
  box-sizing: border-box;
}

.fil-page {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  color: var(--fil-black);
  background: var(--fil-white);
  letter-spacing: 0.01em;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ── Layout Utility ───────────────────── */
.fil-container {
  max-width: var(--fil-content-width);
  margin: 0 auto;
  padding: 0 24px;
}

.fil-section {
  padding: 96px 0;
}

.fil-section--light {
  background: var(--fil-light-gray);
}

.fil-section--dark {
  background: var(--fil-accent);
  color: var(--fil-white);
}

.fil-section__header {
  text-align: center;
  margin-bottom: 56px;
}

.fil-section__eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fil-blue);
  margin-bottom: 12px;
  display: block;
}

.fil-section__title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--fil-black);
  margin: 0 0 16px;
}

.fil-section--dark .fil-section__title {
  color: var(--fil-white);
}

.fil-section__desc {
  font-size: 17px;
  color: var(--fil-gray);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.75;
}

.fil-section--dark .fil-section__desc {
  color: rgba(255,255,255,0.72);
}

/* ── Buttons ──────────────────────────── */
.fil-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 14px 32px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--fil-transition);
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.fil-button--primary {
  background: var(--fil-blue);
  color: var(--fil-white);
  border-color: var(--fil-blue);
}

.fil-button--primary:hover {
  background: var(--fil-blue-dark);
  border-color: var(--fil-blue-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37,99,235,0.35);
  color: var(--fil-white);
  text-decoration: none;
}

.fil-button--secondary {
  background: transparent;
  color: var(--fil-black);
  border-color: rgba(0,0,0,0.28);
}

.fil-button--secondary:hover {
  background: rgba(0,0,0,0.05);
  border-color: rgba(0,0,0,0.5);
  color: var(--fil-black);
  text-decoration: none;
}

.fil-button--white {
  background: var(--fil-white);
  color: var(--fil-black);
  border-color: var(--fil-white);
}

.fil-button--white:hover {
  background: rgba(255,255,255,0.88);
  transform: translateY(-1px);
  color: var(--fil-black);
  text-decoration: none;
}

.fil-button--outline-white {
  background: transparent;
  color: var(--fil-white);
  border-color: rgba(255,255,255,0.56);
}

.fil-button--outline-white:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.8);
  color: var(--fil-white);
  text-decoration: none;
}

.fil-button-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

/* ── Header ───────────────────────────── */
.fil-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 72px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: background var(--fil-transition), box-shadow var(--fil-transition);
}

.fil-header.scrolled {
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 2px 16px rgba(0,0,0,0.08);
}

.fil-header__inner {
  max-width: var(--fil-max-width);
  margin: 0 auto;
  padding: 0 32px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.fil-header__logo {
  text-decoration: none;
  color: var(--fil-black);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  white-space: nowrap;
  flex-shrink: 0;
}

.fil-header__logo:hover {
  color: var(--fil-black);
  text-decoration: none;
}

.fil-header__logo span {
  color: var(--fil-blue);
}

.fil-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}

.fil-nav a {
  padding: 6px 12px;
  font-size: 14px;
  color: var(--fil-dark);
  text-decoration: none;
  border-radius: 6px;
  transition: var(--fil-transition);
  white-space: nowrap;
}

.fil-nav a:hover {
  background: rgba(0,0,0,0.05);
  color: var(--fil-black);
}

.fil-header__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.fil-header__actions a {
  font-size: 14px;
  color: var(--fil-dark);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 6px;
  transition: var(--fil-transition);
  white-space: nowrap;
}

.fil-header__actions a:hover {
  background: rgba(0,0,0,0.05);
  color: var(--fil-black);
}

.fil-header__actions a.is-cta {
  background: var(--fil-blue);
  color: var(--fil-white);
  font-weight: 600;
}

.fil-header__actions a.is-cta:hover {
  background: var(--fil-blue-dark);
  color: var(--fil-white);
}

/* Mobile nav */
.fil-mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.fil-mobile-menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--fil-black);
  border-radius: 2px;
  transition: var(--fil-transition);
}

.fil-mobile-nav {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--fil-border);
  z-index: 999;
  padding: 16px 24px 24px;
  flex-direction: column;
  gap: 4px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.1);
}

.fil-mobile-nav.open {
  display: flex;
}

.fil-mobile-nav a {
  padding: 12px 16px;
  font-size: 16px;
  color: var(--fil-dark);
  text-decoration: none;
  border-radius: 8px;
  transition: var(--fil-transition);
  border-bottom: 1px solid var(--fil-border);
}

.fil-mobile-nav a:hover {
  background: var(--fil-light-gray);
  color: var(--fil-black);
}

.fil-mobile-nav a:last-child {
  border-bottom: none;
}

/* ── 1. Hero Section ──────────────────── */
.fil-hero {
  position: relative;
  min-height: 720px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 45%, #1d4ed8 100%);
}

.fil-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 50%, rgba(37,99,235,0.18) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 20% 80%, rgba(99,179,237,0.12) 0%, transparent 60%);
  pointer-events: none;
}

/* Grid pattern overlay */
.fil-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.fil-hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--fil-content-width);
  margin: 0 auto;
  padding: 80px 24px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 64px;
  align-items: center;
  width: 100%;
}

.fil-hero__text {
  max-width: 640px;
}

.fil-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(37,99,235,0.2);
  border: 1px solid rgba(37,99,235,0.4);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #93c5fd;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.fil-hero__title {
  font-size: clamp(36px, 5.5vw, 72px);
  font-weight: 800;
  line-height: 1.1;
  color: var(--fil-white);
  letter-spacing: -0.02em;
  margin: 0 0 20px;
}

.fil-hero__title em {
  font-style: normal;
  color: #60a5fa;
}

.fil-hero__subtitle {
  font-size: clamp(17px, 2vw, 22px);
  color: rgba(255,255,255,0.82);
  font-weight: 400;
  line-height: 1.6;
  margin: 0 0 16px;
}

.fil-hero__body {
  font-size: 15px;
  color: rgba(255,255,255,0.62);
  line-height: 1.8;
  margin: 0 0 40px;
}

.fil-hero__cta-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.fil-hero__sub-cta {
  display: flex;
  gap: 24px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.fil-hero__sub-cta a {
  font-size: 14px;
  color: rgba(255,255,255,0.62);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: var(--fil-transition);
}

.fil-hero__sub-cta a:hover {
  color: rgba(255,255,255,0.9);
}

.fil-hero__visual {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.fil-hero__stat-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  padding: 20px 24px;
  min-width: 200px;
  backdrop-filter: blur(8px);
}

.fil-hero__stat-card .number {
  font-size: 36px;
  font-weight: 800;
  color: var(--fil-white);
  line-height: 1;
  letter-spacing: -0.02em;
}

.fil-hero__stat-card .number span {
  font-size: 20px;
  color: #60a5fa;
}

.fil-hero__stat-card .label {
  font-size: 13px;
  color: rgba(255,255,255,0.56);
  margin-top: 6px;
}

/* ── 2. Category Product Cards ────────── */
.fil-product-cards {
  padding: 0;
  background: var(--fil-white);
}

.fil-product-card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
}

.fil-product-card {
  position: relative;
  min-height: 420px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 40px;
  text-decoration: none;
  transition: var(--fil-transition);
}

.fil-product-card:hover {
  text-decoration: none;
}

.fil-product-card:hover .fil-product-card__bg {
  transform: scale(1.04);
}

.fil-product-card__bg {
  position: absolute;
  inset: 0;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.fil-product-card--joho1 .fil-product-card__bg {
  background: linear-gradient(160deg, #1e3a5f 0%, #1d4ed8 100%);
}

.fil-product-card--ai .fil-product-card__bg {
  background: linear-gradient(160deg, #0f172a 0%, #4338ca 100%);
}

.fil-product-card--data .fil-product-card__bg {
  background: linear-gradient(160deg, #1f2933 0%, #0891b2 100%);
}

.fil-product-card--programming .fil-product-card__bg {
  background: linear-gradient(160deg, #14532d 0%, #16a34a 100%);
}

.fil-product-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.65) 0%, transparent 60%);
}

.fil-product-card__icon {
  position: absolute;
  top: 36px;
  right: 36px;
  width: 56px;
  height: 56px;
  background: rgba(255,255,255,0.12);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.fil-product-card__content {
  position: relative;
  z-index: 2;
}

.fil-product-card__title {
  font-size: 32px;
  font-weight: 800;
  color: var(--fil-white);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}

.fil-product-card__desc {
  font-size: 15px;
  color: rgba(255,255,255,0.78);
  line-height: 1.6;
  margin: 0 0 20px;
  max-width: 360px;
}

.fil-product-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 6px;
  color: var(--fil-white);
  font-size: 14px;
  font-weight: 600;
  transition: var(--fil-transition);
}

.fil-product-card:hover .fil-product-card__cta {
  background: rgba(255,255,255,0.25);
  border-color: rgba(255,255,255,0.5);
}

/* ── 3. Learning Path ─────────────────── */
.fil-learning-path {
  padding: 96px 0;
}

.fil-learning-path__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  background: var(--fil-border);
  border-radius: var(--fil-radius);
  overflow: hidden;
  margin-top: 48px;
}

.fil-path-item {
  background: var(--fil-white);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-decoration: none;
  color: inherit;
  transition: var(--fil-transition);
}

.fil-path-item:hover {
  background: var(--fil-light-gray);
  text-decoration: none;
  color: inherit;
}

.fil-path-item__number {
  font-size: 48px;
  font-weight: 800;
  color: var(--fil-border);
  line-height: 1;
  letter-spacing: -0.03em;
}

.fil-path-item__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--fil-black);
}

.fil-path-item__desc {
  font-size: 14px;
  color: var(--fil-gray);
  line-height: 1.7;
  flex: 1;
}

.fil-path-item__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--fil-blue);
}

/* ── 4. Pillar Cards ──────────────────── */
.fil-pillar-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.fil-pillar-card {
  background: var(--fil-white);
  border: 1px solid var(--fil-border);
  border-radius: var(--fil-radius);
  padding: 36px;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: var(--fil-transition);
  box-shadow: var(--fil-shadow);
}

.fil-pillar-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--fil-shadow-hover);
  border-color: var(--fil-blue);
  text-decoration: none;
  color: inherit;
}

.fil-pillar-card__icon {
  width: 48px;
  height: 48px;
  background: var(--fil-light-gray);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.fil-pillar-card__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--fil-black);
}

.fil-pillar-card__desc {
  font-size: 15px;
  color: var(--fil-gray);
  line-height: 1.7;
  flex: 1;
}

.fil-pillar-card__arrow {
  color: var(--fil-blue);
  font-size: 20px;
  align-self: flex-start;
}

/* ── 5. Book CTA ──────────────────────── */
.fil-book-cta {
  background: var(--fil-light-gray);
  border-radius: var(--fil-radius);
  padding: 64px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 64px;
  align-items: center;
}

.fil-book-cta__eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fil-blue);
  margin-bottom: 16px;
  display: block;
}

.fil-book-cta__title {
  font-size: 32px;
  font-weight: 800;
  color: var(--fil-black);
  line-height: 1.2;
  margin: 0 0 20px;
}

.fil-book-cta__desc {
  font-size: 16px;
  color: var(--fil-gray);
  line-height: 1.8;
  margin: 0 0 32px;
}

.fil-book-cta__image {
  width: 180px;
  height: 250px;
  background: linear-gradient(135deg, #e8f0fe 0%, #c7d2fe 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--fil-gray);
  text-align: center;
  padding: 16px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
  flex-shrink: 0;
}

/* ── 6. PDF Cards ────────────────────── */
.fil-pdf-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.fil-pdf-card {
  background: var(--fil-white);
  border: 1px solid var(--fil-border);
  border-radius: 12px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: var(--fil-transition);
  text-decoration: none;
  color: inherit;
}

.fil-pdf-card:hover {
  border-color: var(--fil-blue);
  box-shadow: 0 4px 20px rgba(37,99,235,0.12);
  transform: translateY(-2px);
  text-decoration: none;
  color: inherit;
}

.fil-pdf-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: rgba(37,99,235,0.08);
  color: var(--fil-blue);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  align-self: flex-start;
}

.fil-pdf-card__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--fil-black);
  line-height: 1.4;
}

.fil-pdf-card__desc {
  font-size: 13px;
  color: var(--fil-gray);
  line-height: 1.6;
  flex: 1;
}

.fil-pdf-card__download {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--fil-blue);
}

/* ── 7. Audience Cards ────────────────── */
.fil-audience-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.fil-audience-card {
  background: var(--fil-white);
  border: 1px solid var(--fil-border);
  border-radius: var(--fil-radius);
  padding: 40px 32px;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: var(--fil-transition);
  box-shadow: var(--fil-shadow);
}

.fil-audience-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--fil-shadow-hover);
  text-decoration: none;
  color: inherit;
}

.fil-audience-card__icon {
  font-size: 36px;
  line-height: 1;
}

.fil-audience-card__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--fil-black);
}

.fil-audience-card__desc {
  font-size: 15px;
  color: var(--fil-gray);
  line-height: 1.7;
  flex: 1;
}

.fil-audience-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--fil-blue);
  text-decoration: none;
}

/* ── 8. Article Cards ────────────────── */
.fil-article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.fil-article-card {
  background: var(--fil-white);
  border: 1px solid var(--fil-border);
  border-radius: var(--fil-radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  transition: var(--fil-transition);
  box-shadow: var(--fil-shadow);
}

.fil-article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--fil-shadow-hover);
  text-decoration: none;
  color: inherit;
}

.fil-article-card__thumbnail {
  height: 180px;
  background: linear-gradient(135deg, var(--fil-light-gray) 0%, #e2e8f0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  overflow: hidden;
}

.fil-article-card__thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.fil-article-card__body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.fil-article-card__category {
  display: inline-flex;
  padding: 3px 10px;
  background: rgba(37,99,235,0.08);
  color: var(--fil-blue);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  align-self: flex-start;
}

.fil-article-card__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--fil-black);
  line-height: 1.5;
}

.fil-article-card__excerpt {
  font-size: 13px;
  color: var(--fil-gray);
  line-height: 1.7;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.fil-article-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4px;
}

.fil-article-card__date {
  font-size: 12px;
  color: var(--fil-gray);
}

.fil-article-card__read {
  font-size: 13px;
  font-weight: 600;
  color: var(--fil-blue);
}

.fil-articles__footer {
  text-align: center;
  margin-top: 48px;
}

/* ── 9. Author Section ───────────────── */
.fil-author {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 80px;
  align-items: center;
}

.fil-author__eyebrow {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fil-blue);
  margin-bottom: 16px;
}

.fil-author__name {
  font-size: 36px;
  font-weight: 800;
  color: var(--fil-black);
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}

.fil-author__role {
  font-size: 16px;
  color: var(--fil-gray);
  margin: 0 0 24px;
}

.fil-author__bio {
  font-size: 16px;
  color: var(--fil-dark);
  line-height: 1.85;
  margin: 0 0 32px;
}

.fil-author__credentials {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.fil-author__credential {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--fil-light-gray);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--fil-dark);
}

.fil-author__photo {
  width: 280px;
  height: 360px;
  background: linear-gradient(135deg, #1e3a5f 0%, #1d4ed8 100%);
  border-radius: var(--fil-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.5);
  font-size: 14px;
  text-align: center;
  flex-shrink: 0;
  overflow: hidden;
}

.fil-author__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ── 10. Final CTA ───────────────────── */
.fil-final-cta {
  text-align: center;
  padding: 120px 24px;
  background: var(--fil-accent);
  position: relative;
  overflow: hidden;
}

.fil-final-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 50% 100%, rgba(37,99,235,0.25) 0%, transparent 70%);
  pointer-events: none;
}

.fil-final-cta__content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  margin: 0 auto;
}

.fil-final-cta__title {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  color: var(--fil-white);
  line-height: 1.2;
  margin: 0 0 20px;
  letter-spacing: -0.02em;
}

.fil-final-cta__desc {
  font-size: 17px;
  color: rgba(255,255,255,0.7);
  line-height: 1.8;
  margin: 0 0 40px;
}

/* ── Fixed Bottom CTA Bar ────────────── */
.fil-bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 900;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--fil-border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.08);
  transition: transform var(--fil-transition);
}

.fil-bottom-bar.hidden {
  transform: translateY(100%);
}

.fil-bottom-bar__text {
  font-size: 14px;
  color: var(--fil-gray);
}

/* ── Responsive ──────────────────────── */
@media (max-width: 1024px) {
  .fil-header__inner {
    padding: 0 20px;
  }

  .fil-nav {
    display: none;
  }

  .fil-mobile-menu-toggle {
    display: flex;
  }

  .fil-header__actions {
    display: none;
  }

  .fil-hero__content {
    grid-template-columns: 1fr;
  }

  .fil-hero__visual {
    display: none;
  }

  .fil-product-card-grid {
    grid-template-columns: 1fr;
  }

  .fil-learning-path__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .fil-pillar-grid {
    grid-template-columns: 1fr;
  }

  .fil-audience-grid {
    grid-template-columns: 1fr;
  }

  .fil-article-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .fil-author {
    grid-template-columns: 1fr;
  }

  .fil-author__photo {
    width: 200px;
    height: 260px;
  }

  .fil-book-cta {
    grid-template-columns: 1fr;
    padding: 40px;
  }

  .fil-book-cta__image {
    width: 140px;
    height: 195px;
  }
}

@media (max-width: 768px) {
  .fil-section {
    padding: 64px 0;
  }

  .fil-hero {
    min-height: 620px;
  }

  .fil-hero__content {
    padding: 60px 20px;
  }

  .fil-hero__cta-group {
    flex-direction: column;
  }

  .fil-hero__cta-group .fil-button {
    width: 100%;
    justify-content: center;
  }

  .fil-learning-path__grid {
    grid-template-columns: 1fr;
  }

  .fil-pdf-grid {
    grid-template-columns: 1fr;
  }

  .fil-article-grid {
    grid-template-columns: 1fr;
  }

  .fil-pillar-grid {
    grid-template-columns: 1fr;
  }

  .fil-button-group {
    flex-direction: column;
    align-items: stretch;
  }

  .fil-button-group .fil-button {
    width: 100%;
  }

  .fil-bottom-bar {
    flex-direction: column;
    gap: 8px;
    padding: 16px;
  }

  .fil-bottom-bar .fil-button {
    width: 100%;
    justify-content: center;
  }

  .fil-final-cta__title {
    font-size: 28px;
  }

  .fil-book-cta {
    padding: 32px 24px;
  }
}