/* =============================================
   uPhyca Inc. - Corporate Website 2026
   Modern, Clean Design System
   ============================================= */

/* --- CSS Custom Properties --- */
:root {
  --color-primary: #c4185a;
  --color-primary-dark: #9c1348;
  --color-primary-light: #e91e72;
  --color-accent: #ff6b9d;

  --color-dark: #0f0f1a;
  --color-dark-soft: #1a1a2e;
  --color-dark-muted: #2d2d44;

  --color-light: #f8f9fc;
  --color-light-soft: #eef0f5;
  --color-white: #ffffff;

  --color-text: #1a1a2e;
  --color-text-muted: #6b7280;
  --color-text-light: #9ca3af;
  --color-text-on-dark: #e5e7eb;

  --font-sans: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);

  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

/* --- Layout --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-lg);
  }
}

.sp-only {
  display: none;
}

@media (max-width: 768px) {
  .sp-only {
    display: inline;
  }
}

/* =============================================
   HEADER
   ============================================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.header--scrolled {
  background: rgba(255,255,255,0.95);
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header__logo img {
  transition: opacity var(--transition-fast);
}

.header__logo:hover img {
  opacity: 0.7;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.header__nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  position: relative;
  padding: var(--space-xs) 0;
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-base);
}

.header__nav a:hover {
  color: var(--color-text);
}

.header__nav a:hover::after {
  width: 100%;
}

.nav-cta {
  background: var(--color-primary);
  color: var(--color-white) !important;
  padding: var(--space-sm) var(--space-lg) !important;
  border-radius: var(--radius-full);
  font-size: 0.8125rem !important;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  background: var(--color-primary-dark);
  color: var(--color-white) !important;
}

/* Hamburger */
.header__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 1001;
}

.header__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.header__hamburger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.header__hamburger.is-open span:nth-child(2) {
  opacity: 0;
}

.header__hamburger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 768px) {
  .header__hamburger {
    display: flex;
  }

  .header__nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    padding: calc(var(--header-height) + var(--space-xl)) var(--space-2xl);
    gap: var(--space-lg);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    box-shadow: var(--shadow-xl);
  }

  .header__nav.is-open {
    transform: translateX(0);
  }

  .header__nav a {
    font-size: 1rem;
  }

  .nav-cta {
    margin-top: var(--space-md);
  }
}

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(196,24,90,0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(196,24,90,0.05) 0%, transparent 50%),
    radial-gradient(ellipse at 60% 80%, rgba(255,107,157,0.05) 0%, transparent 50%);
  z-index: 0;
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
  padding: var(--space-4xl) 0;
}

.hero__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  background: rgba(196,24,90,0.08);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
}

.hero__title {
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
}

.hero__subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
}

.hero__actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* Hero visual cards */
.hero__visual {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  padding: var(--space-xl);
}

.hero__card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl) var(--space-xl);
  text-align: center;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  border: 1px solid rgba(0,0,0,0.04);
}

.hero__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.hero__card--1 {
  grid-column: 1;
  grid-row: 1;
}

.hero__card--2 {
  grid-column: 2;
  grid-row: 1 / 3;
  align-self: center;
}

.hero__card--3 {
  grid-column: 1;
  grid-row: 2;
}

.hero__card-icon {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
  color: var(--color-primary);
}

.hero__card-text {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}


@media (max-width: 768px) {
  .hero__inner {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    padding: var(--space-2xl) 0;
  }

  .hero__visual {
    display: flex;
    gap: var(--space-md);
    padding: 0;
    justify-content: center;
  }

  .hero__card {
    padding: var(--space-lg) var(--space-md);
    flex: 1;
    max-width: 140px;
  }


}

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  cursor: pointer;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(196,24,90,0.3);
}

.btn--outline {
  border: 1.5px solid var(--color-text);
  color: var(--color-text);
}

.btn--outline:hover {
  background: var(--color-text);
  color: var(--color-white);
}

.btn--large {
  font-size: 1.0625rem;
  padding: 1rem 2.25rem;
}

.btn--light {
  background: var(--color-white);
  color: var(--color-primary);
}

.btn--light:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
}

/* =============================================
   AI HIGHLIGHT
   ============================================= */
.ai-highlight {
  position: relative;
  overflow: hidden;
  background: linear-gradient(120deg, var(--color-primary) 0%, var(--color-primary-light) 55%, var(--color-accent) 100%);
}

.ai-highlight::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 15% 20%, rgba(255,255,255,0.18) 0%, transparent 45%),
    radial-gradient(ellipse at 85% 90%, rgba(255,255,255,0.12) 0%, transparent 50%);
  pointer-events: none;
}

.ai-highlight__inner {
  position: relative;
  text-align: center;
  max-width: 820px;
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
}

.ai-highlight__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-white);
  background: rgba(255,255,255,0.18);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
}

.ai-highlight__title {
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin-bottom: var(--space-lg);
}

.ai-highlight__text {
  font-size: 1.0625rem;
  line-height: 1.9;
  color: rgba(255,255,255,0.92);
  margin-bottom: var(--space-2xl);
}

@media (max-width: 768px) {
  .ai-highlight__inner {
    padding-top: var(--space-3xl);
    padding-bottom: var(--space-3xl);
  }
  .sp-hide {
    display: none;
  }
}

/* =============================================
   SECTIONS
   ============================================= */
.section {
  padding: var(--space-5xl) 0;
}

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

.section--dark {
  background: var(--color-dark-soft);
  color: var(--color-text-on-dark);
}

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

.section--cta {
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-soft) 50%, var(--color-dark-muted) 100%);
  color: var(--color-text-on-dark);
  padding: var(--space-3xl) 0;
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.section__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.section--dark .section__label {
  color: var(--color-accent);
}

.section__title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* =============================================
   PHILOSOPHY
   ============================================= */
.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.philosophy-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  border: 1px solid rgba(0,0,0,0.04);
}

.philosophy-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.philosophy-card__number {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-primary);
  font-family: var(--font-mono);
  margin-bottom: var(--space-md);
}

.philosophy-card__title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.philosophy-card__text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

@media (max-width: 1024px) {
  .philosophy-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .philosophy-grid {
    grid-template-columns: 1fr;
  }
}

/* =============================================
   SOLUTIONS
   ============================================= */
.section__lead {
  max-width: 640px;
  margin: var(--space-md) auto 0;
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.solution-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  border: 1px solid rgba(0,0,0,0.04);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.solution-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.solution-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(196,24,90,0.1), rgba(255,107,157,0.1));
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
}

.solution-card__title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.solution-card__text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.solution-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: var(--space-lg);
}

.solution-card__tags .tag {
  text-transform: none;
}

@media (max-width: 1024px) {
  .solutions-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .solutions-grid {
    grid-template-columns: 1fr;
  }
}

/* =============================================
   TECHNOLOGY
   ============================================= */
.tech-grid {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  flex-wrap: wrap;
}

.tech-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  transition: all var(--transition-base);
  min-width: 120px;
}

.tech-item:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
}

.tech-item__icon {
  color: var(--color-accent);
}

.tech-item__icon svg {
  stroke: var(--color-accent);
  fill: none;
}

.tech-item__name {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.05em;
}

/* =============================================
   WORKS
   ============================================= */
.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.work-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  border: 1px solid rgba(0,0,0,0.04);
}

.work-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.work-card__image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.work-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.work-card:hover .work-card__image img {
  transform: scale(1.05);
}

.work-card__overlay {
  position: absolute;
  inset: 0;
  background: rgba(15,15,26,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.work-card:hover .work-card__overlay {
  opacity: 1;
}

.work-card__view {
  color: var(--color-white);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid rgba(255,255,255,0.5);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
}

.work-card__body {
  padding: var(--space-xl);
}

.work-card__tags {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-sm);
}

.tag {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  background: rgba(196,24,90,0.08);
  color: var(--color-primary);
}

.tag--accent {
  background: rgba(255,107,157,0.1);
  color: var(--color-accent);
}

.work-card__title {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.work-card__desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

@media (max-width: 1024px) {
  .works-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .works-grid {
    grid-template-columns: 1fr;
  }
}

/* =============================================
   BOOKS
   ============================================= */
.books-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.book-card {
  display: flex;
  gap: var(--space-2xl);
  background: var(--color-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  border: 1px solid rgba(0,0,0,0.04);
}

.book-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.book-card__cover {
  flex-shrink: 0;
  width: 120px;
}

.book-card__cover img {
  width: 100%;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
}

.book-card__info {
  flex: 1;
}

.book-card__title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.book-card__author {
  font-size: 0.875rem;
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: var(--space-xs);
}

.book-card__meta {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
}

.book-card__desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

@media (max-width: 640px) {
  .book-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-lg);
  }

  .book-card__cover {
    width: 100px;
  }
}

/* =============================================
   MEMBER
   ============================================= */
.member-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl);
}

.member-card {
  text-align: center;
  padding: var(--space-2xl);
}

.member-card__avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: var(--color-light-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  overflow: hidden;
  border: 3px solid var(--color-white);
  box-shadow: var(--shadow-md);
}

.member-card__avatar img {
  width: 60%;
  height: 60%;
  object-fit: contain;
  opacity: 0.5;
}

.member-card__name {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.member-card__role {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  background: rgba(196,24,90,0.08);
  padding: 2px 12px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.member-card__bio {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .member-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

/* =============================================
   COMPANY & TIMELINE
   ============================================= */
.company-layout {
  display: grid;
  grid-template-columns: 1fr;
  max-width: 640px;
  margin: 0 auto;
  gap: var(--space-4xl);
  align-items: start;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
}

.info-table tr {
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.info-table th,
.info-table td {
  padding: var(--space-md) 0;
  text-align: left;
  vertical-align: top;
}

.info-table th {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-light);
  width: 100px;
  white-space: nowrap;
  padding-right: var(--space-xl);
}

.info-table td {
  font-size: 0.9375rem;
  color: var(--color-text-on-dark);
}

/* Timeline */
.timeline__heading {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-2xl);
  color: var(--color-accent);
}

.timeline__items {
  position: relative;
  padding-left: var(--space-2xl);
}

.timeline__items::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-accent));
  border-radius: 1px;
}

.timeline__item {
  position: relative;
  padding-bottom: var(--space-xl);
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-2xl) - 4px);
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid var(--color-dark-soft);
}

.timeline__year {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-xs);
}

.timeline__content strong {
  display: block;
  font-size: 0.9375rem;
  margin-bottom: var(--space-xs);
}

.timeline__content p {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .company-layout {
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
  }
}

/* =============================================
   CTA / CONTACT
   ============================================= */
.cta-content {
  text-align: center;
  padding: var(--space-3xl) 0;
}

.cta__title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-top: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.cta__text {
  font-size: 1.0625rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-2xl);
  line-height: 1.8;
}

.section--cta .section__label {
  color: var(--color-accent);
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: var(--color-dark);
  color: var(--color-text-light);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xl);
}

.footer__brand {
  text-align: center;
}

.footer__logo {
  margin: 0 auto var(--space-sm);
  filter: brightness(0) invert(1);
  opacity: 0.8;
}

.footer__tagline {
  font-size: 0.8125rem;
  color: var(--color-text-light);
}

.footer__links {
  display: flex;
  gap: var(--space-xl);
  flex-wrap: wrap;
  justify-content: center;
}

.footer__links a {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  transition: color var(--transition-fast);
}

.footer__links a:hover {
  color: var(--color-white);
}

.footer__bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255,255,255,0.08);
  width: 100%;
  text-align: center;
}

.footer__bottom p {
  font-size: 0.75rem;
  color: var(--color-text-light);
  opacity: 0.6;
}

/* =============================================
   BACK TO TOP
   ============================================= */
.back-to-top {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
  z-index: 100;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

/* =============================================
   MESSAGE
   ============================================= */
.message-layout {
  max-width: 800px;
  margin: 0 auto;
}

.message-content__heading {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: var(--space-2xl);
  color: var(--color-primary);
}

.message-content__text {
  font-size: 1rem;
  line-height: 2;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

.message-content__signature {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-top: var(--space-2xl);
  color: var(--color-text);
}

/* =============================================
   TECHNOLOGY (updated)
   ============================================= */
.tech-categories {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
}

.tech-category__title {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
  text-align: center;
}

/* =============================================
   WORKFLOW
   ============================================= */
.workflow-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.workflow-step {
  background: var(--color-light);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  border: 1px solid rgba(0,0,0,0.04);
  position: relative;
}

.workflow-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.workflow-step__number {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-primary);
  font-family: var(--font-mono);
  margin-bottom: var(--space-md);
}

.workflow-step__title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.workflow-step__text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

@media (max-width: 1024px) {
  .workflow-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .workflow-grid {
    grid-template-columns: 1fr;
  }
}

.workflow-grid .fade-up:nth-child(1) { transition-delay: 0s; }
.workflow-grid .fade-up:nth-child(2) { transition-delay: 0.1s; }
.workflow-grid .fade-up:nth-child(3) { transition-delay: 0.2s; }
.workflow-grid .fade-up:nth-child(4) { transition-delay: 0.3s; }
.workflow-grid .fade-up:nth-child(5) { transition-delay: 0.4s; }
.workflow-grid .fade-up:nth-child(6) { transition-delay: 0.5s; }

/* =============================================
   WORKS - RECENT
   ============================================= */
.works-recent {
  margin-bottom: var(--space-4xl);
}

.works-recent__heading {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.works-recent__note {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-xl);
}

.works-recent__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.works-recent__item {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  border: 1px solid rgba(0,0,0,0.04);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.works-recent__item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.works-recent__item .work-card__tags {
  margin-bottom: var(--space-sm);
}

.works-recent__item h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.works-recent__item p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

@media (max-width: 1024px) {
  .works-recent__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .works-recent__grid {
    grid-template-columns: 1fr;
  }
}

.section__subheader {
  margin-bottom: var(--space-2xl);
}

.section__subtitle {
  font-size: 1.25rem;
  font-weight: 600;
}

/* =============================================
   COMPANY MAP
   ============================================= */
.company-map {
  margin-top: var(--space-2xl);
}

.company-map__heading {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  color: var(--color-accent);
}

.company-map__access {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-top: var(--space-sm);
}

/* =============================================
   CONTACT (enhanced)
   ============================================= */
.cta__methods {
  margin-bottom: var(--space-xl);
}

.cta__note {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* =============================================
   FOOTER SOCIAL
   ============================================= */
.footer__social {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
}

.footer__social-link {
  color: var(--color-text-light);
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
}

.footer__social-link:hover {
  color: var(--color-white);
}

.footer__bottom a {
  color: var(--color-text-light);
  transition: color var(--transition-fast);
}

.footer__bottom a:hover {
  color: var(--color-white);
}

/* =============================================
   PRIVACY POLICY
   ============================================= */
.privacy-content {
  max-width: 800px;
  margin: 0 auto;
}

.privacy-content h2 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}

.privacy-content p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.privacy-content ul {
  list-style: disc;
  padding-left: var(--space-xl);
  margin-bottom: var(--space-md);
}

.privacy-content li {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.privacy-content a {
  color: var(--color-primary);
}

.privacy-content a:hover {
  text-decoration: underline;
}

.privacy-content__date {
  margin-top: var(--space-2xl);
  font-size: 0.8125rem;
  color: var(--color-text-light);
}

/* =============================================
   ANIMATIONS
   ============================================= */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.philosophy-grid .fade-up:nth-child(1) { transition-delay: 0s; }
.philosophy-grid .fade-up:nth-child(2) { transition-delay: 0.1s; }
.philosophy-grid .fade-up:nth-child(3) { transition-delay: 0.2s; }
.philosophy-grid .fade-up:nth-child(4) { transition-delay: 0.3s; }
.philosophy-grid .fade-up:nth-child(5) { transition-delay: 0.4s; }
.philosophy-grid .fade-up:nth-child(6) { transition-delay: 0.5s; }

.solutions-grid .fade-up:nth-child(1) { transition-delay: 0s; }
.solutions-grid .fade-up:nth-child(2) { transition-delay: 0.1s; }
.solutions-grid .fade-up:nth-child(3) { transition-delay: 0.2s; }
.solutions-grid .fade-up:nth-child(4) { transition-delay: 0.3s; }
.solutions-grid .fade-up:nth-child(5) { transition-delay: 0.4s; }

.works-grid .fade-up:nth-child(1) { transition-delay: 0s; }
.works-grid .fade-up:nth-child(2) { transition-delay: 0.1s; }
.works-grid .fade-up:nth-child(3) { transition-delay: 0.2s; }
.works-grid .fade-up:nth-child(4) { transition-delay: 0.15s; }
.works-grid .fade-up:nth-child(5) { transition-delay: 0.25s; }
.works-grid .fade-up:nth-child(6) { transition-delay: 0.35s; }

.member-grid .fade-up:nth-child(1) { transition-delay: 0s; }
.member-grid .fade-up:nth-child(2) { transition-delay: 0.15s; }
.member-grid .fade-up:nth-child(3) { transition-delay: 0.3s; }