/* ============================================
   栃杜建設 LP — Complete Stylesheet
   Design: B案 — フレンドリー x 信頼 ハイブリッド型
   ============================================ */

/* -----------------------------------------------
   DESIGN TOKENS
   ----------------------------------------------- */
:root {
  /* Primary */
  --color-primary:       #1B4332;
  --color-primary-light:  #2D6A4F;
  --color-primary-tint:   #E8F5E9;

  /* Secondary */
  --color-secondary:     #2C2C2C;

  /* Neutral */
  --color-neutral:       #8C8C8C;
  --color-bg:            #F5F3EF;
  --color-card:          #FFFFFF;

  /* Accent */
  --color-accent:        #607D8B;
  --color-accent-tint:   #E3EDF2;
  --color-warm:          #8B6F47;
  --color-warm-tint:     #F5EDE0;
  --color-helmet:        #F5A623;

  /* Borders & Surfaces */
  --color-border:        #E0DDD7;
  --color-projects-bg:   #F0EDEA;

  /* Text */
  --color-text:          #1A1A1A;
  --color-text-sub:      #5C5C5C;
  --color-text-light:    #8A8A8A;

  /* Layout */
  --max-width:           1200px;
  --section-py:          100px;
  --header-h:            72px;
  --content-px:          48px;

  /* Radius */
  --radius-sm:  8px;
  --radius-md:  12px;
  --radius-lg:  16px;
  --radius-xl:  24px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-card:       0 4px 24px rgba(11, 22, 40, 0.04);
  --shadow-card-hover: 0 8px 32px rgba(11, 22, 40, 0.10);
  --shadow-header:     0 2px 12px rgba(0, 0, 0, 0.04);
  --shadow-form:       0 8px 40px rgba(0, 0, 0, 0.12);

  /* Animation */
  --ease-out:      cubic-bezier(0.22, 1, 0.36, 1);
  --duration:      0.6s;
  --stagger-delay: 0.12s;

  /* === KOKUYO-inspired: oklch color palette === */
  --oklch-primary:       oklch(0.33 0.06 160);
  --oklch-primary-light: oklch(0.42 0.08 160);
  --oklch-accent:        oklch(0.55 0.04 230);
  --oklch-warm:          oklch(0.52 0.07 65);
  --oklch-helmet:        oklch(0.76 0.15 75);
  --oklch-bg:            oklch(0.96 0.01 90);

  /* Slash angle (36deg = KOKUYO's brand angle, here we use 30deg for tochimori) */
  --slash-angle:         30deg;
  --slash-tan:           0.5773502692; /* tan(30deg) */
}


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

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

body {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 17px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol { list-style: none; }

.sp-only  { display: none; }
.pc-only  { display: inline; }


/* -----------------------------------------------
   SHARED COMPONENTS
   ----------------------------------------------- */

/* --- Section Label (English uppercase) --- */
.section-label {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: 12px;
}
.section-label--center { text-align: center; }
.section-label--green  { color: var(--color-primary-light); }
.section-label--light  { color: rgba(255, 255, 255, 0.5); }

/* --- Section Accent Line --- */
.section-accent-line {
  width: 56px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 2px;
  margin-bottom: 20px;
}
.section-accent-line--center { margin-left: auto; margin-right: auto; }

/* --- Section Heading --- */
.section-heading {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--color-text);
  margin-bottom: 24px;
}
.section-heading--center { text-align: center; }
.section-heading--light  { color: var(--color-card); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-pill);
  padding: 16px 36px;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: all 0.35s var(--ease-out);
}

/* Primary CTA */
.btn--primary {
  background: var(--color-primary);
  color: var(--color-card);
}
.btn--primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-primary-light);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out);
  z-index: 0;
  border-radius: inherit;
}
.btn--primary:hover::before { transform: scaleX(1); }
.btn--primary span,
.btn--primary { z-index: 1; }
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(27, 67, 50, 0.3);
}

/* Outline */
.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn--outline:hover {
  background: var(--color-primary);
  color: var(--color-card);
  transform: translateY(-2px);
}

/* Outline Light (on dark bg) */
.btn--outline-light {
  background: transparent;
  color: var(--color-card);
  border: 2px solid rgba(255, 255, 255, 0.35);
  padding: 12px 28px;
  font-size: 15px;
}
.btn--outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.7);
}

/* Submit */
.btn--submit {
  background: var(--color-primary);
  color: var(--color-card);
  width: 100%;
  padding: 18px;
  font-size: 17px;
  margin-top: 8px;
}
.btn--submit:hover {
  background: var(--color-primary-light);
}

/* --- Text Link --- */
.text-link {
  color: var(--color-primary);
  font-weight: 500;
  font-size: 15px;
  transition: opacity 0.2s;
}
.text-link:hover { opacity: 0.7; }
.text-link--dark { color: var(--color-text-sub); }
.text-link--dark:hover { color: var(--color-primary); opacity: 1; }

/* --- Required Badge --- */
.required {
  display: inline-block;
  background: #D32F2F;
  color: white;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 4px;
  vertical-align: middle;
}


/* -----------------------------------------------
   ANIMATIONS
   ----------------------------------------------- */

/* fade-in: scroll-triggered */
.fade-in {
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity var(--duration) var(--ease-out),
    transform var(--duration) var(--ease-out);
  transition-delay: calc(var(--i, 0) * var(--stagger-delay));
}
.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* hover-lift: card hover effect */
.hover-lift {
  transition:
    opacity var(--duration) var(--ease-out),
    transform 0.35s var(--ease-out),
    box-shadow 0.35s var(--ease-out);
}
.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
/* Keep fade-in translateY(0) when visible AND hovered */
.hover-lift.is-visible:hover {
  transform: translateY(-4px);
}

/* line-draw */
.line-draw {
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.8s var(--ease-out);
}
.line-draw.is-visible {
  transform: scaleX(1);
}

/* ===== KOKUYO-inspired: Slash Reveal (diagonal mask wipe) ===== */
.slash-reveal {
  clip-path: polygon(0 0, 0 0, 0 100%, 0 100%);
  transition: clip-path 0.8s var(--ease-out);
  transition-delay: calc(var(--i, 0) * var(--stagger-delay));
}
.slash-reveal.is-visible {
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

/* ===== KOKUYO-inspired: Color Chip (skewX strip behind label) ===== */
.color-chip {
  position: relative;
  display: inline-block;
}
.color-chip::before {
  content: '';
  position: absolute;
  inset: -2px -8px;
  background: var(--oklch-primary);
  transform: scaleX(0) skewX(calc(-1 * var(--slash-angle)));
  transform-origin: left center;
  transition: transform 0.6s var(--ease-out);
  z-index: -1;
  border-radius: 2px;
}
.color-chip.is-visible::before {
  transform: scaleX(1) skewX(calc(-1 * var(--slash-angle)));
}
.color-chip--warm::before  { background: var(--oklch-warm); }
.color-chip--accent::before { background: var(--oklch-accent); }
.color-chip--helmet::before { background: var(--oklch-helmet); }
.color-chip.is-visible {
  color: #fff;
  transition: color 0.3s 0.2s var(--ease-out);
}

/* ===== KOKUYO-inspired: oklch hover states ===== */
.oklch-hover {
  transition: background-color 0.25s var(--ease-out), color 0.25s var(--ease-out);
}
.oklch-hover:hover {
  background-color: oklch(from var(--oklch-primary) calc(l + 0.08) c h);
  color: #fff;
}
.oklch-hover--warm:hover {
  background-color: oklch(from var(--oklch-warm) calc(l + 0.08) c h);
}
.oklch-hover--accent:hover {
  background-color: oklch(from var(--oklch-accent) calc(l + 0.08) c h);
}

/* ===== KOKUYO-inspired: Slash Section Divider ===== */
.slash-divider {
  position: relative;
  overflow: hidden;
}
.slash-divider::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: -10%;
  width: 120%;
  height: 80px;
  background: var(--color-bg);
  transform: skewY(calc(-1 * var(--slash-angle) / 4));
  transform-origin: bottom left;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .fade-in,
  .hover-lift,
  .line-draw,
  .slash-reveal,
  .color-chip {
    opacity: 1;
    transform: none;
    clip-path: none;
    transition: none;
  }
  .color-chip::before {
    transform: scaleX(1) skewX(calc(-1 * var(--slash-angle)));
    transition: none;
  }
  .hero__img { animation: none; }
  .hero__float { animation: none; }
  .projects__track {
    animation: none !important;
    transform: none !important;
  }
  .ticker__track { animation: none; }
  .footer-transition__character { animation: none; }
}


/* -----------------------------------------------
   HEADER
   ----------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}
.header.is-scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-header);
}

/* Header colors when overlaying hero (not scrolled) */
.header:not(.is-scrolled) .header__logo-main { color: white; text-shadow: 0 1px 4px rgba(0,0,0,0.4); }
.header:not(.is-scrolled) .header__logo-sub { color: rgba(255,255,255,0.85); text-shadow: 0 1px 3px rgba(0,0,0,0.3); }
.header:not(.is-scrolled) .header__link { color: rgba(255,255,255,0.95); text-shadow: 0 1px 3px rgba(0,0,0,0.3); }
.header:not(.is-scrolled) .header__link:hover { color: white; }
.header:not(.is-scrolled) .header__link--cta { background: white; color: var(--color-primary) !important; text-shadow: none; box-shadow: 0 2px 8px rgba(0,0,0,0.15); }
.header:not(.is-scrolled) .header__hamburger span { background: white; box-shadow: 0 1px 2px rgba(0,0,0,0.3); }

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

.header__logo {
  display: flex;
  flex-direction: column;
  gap: 0;
  flex-shrink: 0;
}
.header__logo-main {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  line-height: 1.2;
}
.header__logo-sub {
  font-size: 9px;
  font-weight: 500;
  color: var(--color-neutral);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.header__link {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-sub);
  transition: color 0.2s;
  white-space: nowrap;
}
.header__link:hover {
  color: var(--color-primary);
}
.header__link--cta {
  background: var(--color-primary);
  color: var(--color-card) !important;
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  transition: background 0.2s;
}
.header__link--cta:hover {
  background: var(--color-primary-light);
}

/* Hamburger */
.header__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}
.header__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-secondary);
  border-radius: 1px;
  transition: all 0.3s ease;
}
.header__hamburger.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.header__hamburger.is-active span:nth-child(2) {
  opacity: 0;
}
.header__hamburger.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}


/* -----------------------------------------------
   S1  HERO — Full-viewport illustration-dominant
   ----------------------------------------------- */
.hero {
  position: relative;
  min-height: 92vh;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}

/* Top gradient for header readability */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 160px;
  background: linear-gradient(to bottom, rgba(0,0,0,0.35) 0%, rgba(0,0,0,0.12) 50%, transparent 100%);
  z-index: 2;
  pointer-events: none;
}

/* Bottom gradient for text readability */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60%;
  background: linear-gradient(to top, rgba(245,243,239,0.95) 0%, rgba(245,243,239,0.7) 35%, transparent 100%);
  z-index: 1;
  pointer-events: none;
}

.hero__visual {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  animation: heroZoom 8s var(--ease-out) forwards;
}

@keyframes heroZoom {
  from { transform: scale(1.08); }
  to { transform: scale(1); }
}

/* Floating decorative elements */
.hero__float {
  position: absolute;
  border-radius: 50%;
  opacity: 0.15;
  pointer-events: none;
  z-index: 1;
}
.hero__float--1 {
  width: 200px; height: 200px;
  background: radial-gradient(circle, var(--color-primary-tint), transparent);
  top: 10%; right: 5%;
  animation: heroFloat 12s ease-in-out infinite alternate;
}
.hero__float--2 {
  width: 150px; height: 150px;
  background: radial-gradient(circle, var(--color-accent-tint), transparent);
  top: 20%; left: 8%;
  animation: heroFloat 10s ease-in-out infinite alternate-reverse;
}
.hero__float--3 {
  width: 180px; height: 180px;
  background: radial-gradient(circle, var(--color-warm-tint), transparent);
  bottom: 30%; right: 15%;
  animation: heroFloat 14s ease-in-out infinite alternate;
}
@keyframes heroFloat {
  from { transform: translate(0, 0); }
  to { transform: translate(20px, -15px); }
}

/* Hero circle character bubbles — 丸抜きで仕事の多様性を表現 */
.hero__characters {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}
.hero__char {
  position: absolute;
  border-radius: 50%;
  overflow: hidden;
  background: var(--color-bg);
  border: 3px solid rgba(255,255,255,0.7);
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
}
.hero__char img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  mix-blend-mode: multiply;
}
/* 7 circles — scattered in upper/right area, below header */
.hero__char--1 {
  width: 80px; height: 80px;
  top: 12%; right: 3%;
  animation: charFloat 5s ease-in-out infinite;
}
.hero__char--2 {
  width: 64px; height: 64px;
  top: 10%; right: 16%;
  animation: charFloat 6s ease-in-out 0.5s infinite;
}
.hero__char--3 {
  width: 72px; height: 72px;
  top: 20%; right: 8%;
  animation: charFloat 5.5s ease-in-out 1s infinite;
}
.hero__char--4 {
  width: 56px; height: 56px;
  top: 11%; right: 28%;
  animation: charFloat 7s ease-in-out 0.3s infinite;
}
.hero__char--5 {
  width: 68px; height: 68px;
  top: 18%; right: 20%;
  animation: charFloat 6.5s ease-in-out 0.8s infinite;
}
.hero__char--6 {
  width: 52px; height: 52px;
  top: 13%; right: 38%;
  animation: charFloat 5.8s ease-in-out 1.2s infinite;
}
.hero__char--7 {
  width: 60px; height: 60px;
  top: 24%; right: 32%;
  animation: charFloat 6.2s ease-in-out 0.6s infinite;
}

@keyframes charFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@media (prefers-reduced-motion: reduce) {
  .hero__char { animation: none !important; }
  .hero__char-track { animation: none !important; }
}

/* Mobile character ticker — hidden on desktop */
.hero__char-ticker {
  display: none;
}

.hero__text {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--content-px) 64px;
  width: 100%;
}

.hero__label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.hero__accent-line {
  width: 56px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 2px;
  margin-bottom: 24px;
}

.hero__heading {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.02em;
  color: var(--color-primary);
  margin-bottom: 20px;
  text-shadow:
    0 1px 2px rgba(245,243,239,0.9),
    0 2px 8px rgba(245,243,239,0.8),
    0 0 24px rgba(245,243,239,0.6);
}

.hero__sub {
  font-size: 17px;
  line-height: 1.9;
  color: var(--color-text-sub);
  max-width: 600px;
  text-shadow:
    0 1px 2px rgba(245,243,239,0.9),
    0 0 16px rgba(245,243,239,0.5);
}

.hero__label {
  text-shadow:
    0 1px 2px rgba(245,243,239,0.8),
    0 0 12px rgba(245,243,239,0.4);
}


/* -----------------------------------------------
   S2  ABOUT
   ----------------------------------------------- */
.about {
  padding: var(--section-py) 0;
  background: var(--color-bg);
}

.about__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--content-px);
  display: flex;
  gap: 72px;
}

.about__left {
  flex: 0 0 38%;
  position: sticky;
  top: calc(var(--header-h) + 40px);
  align-self: flex-start;
}
.about__left::after {
  content: "";
  display: block;
  margin-top: 56px;
  width: 110%;
  aspect-ratio: 1;
  background: url("asset/illustrations/step_build_v2.png") center / contain no-repeat;
  opacity: 0.07;
  pointer-events: none;
  filter: grayscale(0.3);
}

.about__lead {
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-text-sub);
}

.about__right {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.about__card {
  background: var(--color-card);
  border-radius: var(--radius-xl);
  padding: 32px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.35s var(--ease-out), transform 0.35s var(--ease-out);
}
.about__card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}

.about__card-img {
  margin-bottom: 20px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-primary-tint);
}
.about__card-img img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  mix-blend-mode: multiply;
}

.about__card-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.about__card-text {
  font-size: 15px;
  color: var(--color-text-sub);
  line-height: 1.8;
}


/* -----------------------------------------------
   S3  SERVICES
   ----------------------------------------------- */
.services {
  padding: var(--section-py) 0;
  background: var(--color-bg);
}

.services__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--content-px);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.services__card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.35s var(--ease-out), transform 0.35s var(--ease-out);
}
.services__card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
}

.services__card-img {
  margin-bottom: 16px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-primary-tint);
}
.services__card-img img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  mix-blend-mode: multiply;
}

.services__card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.services__card-text {
  font-size: 15px;
  color: var(--color-text-sub);
  line-height: 1.7;
}


/* -----------------------------------------------
   S4  CHALLENGES — Magazine storytelling layout
   ----------------------------------------------- */
.challenges {
  padding: var(--section-py) 0;
  background: var(--color-card);
  overflow: hidden;
}

.challenges__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--content-px);
}

.challenges__list {
  margin-top: 56px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* Each challenge: full-width horizontal band, alternating direction */
.challenges__item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: stretch;
  min-height: 260px;
  position: relative;
}

/* Alternating: even items flip image & text */
.challenges__item:nth-child(even) {
  direction: rtl;
}
.challenges__item:nth-child(even) > * {
  direction: ltr;
}

/* Illustration side: larger, with tinted bg */
.challenges__item-visual {
  position: relative;
  height: 100%;
  min-height: 240px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.challenges__item:nth-child(1) .challenges__item-visual { background: var(--color-warm-tint); }
.challenges__item:nth-child(2) .challenges__item-visual { background: var(--color-primary-tint); }
.challenges__item:nth-child(3) .challenges__item-visual { background: var(--color-accent-tint); }
.challenges__item:nth-child(4) .challenges__item-visual { background: var(--color-warm-tint); }

.challenges__item-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  mix-blend-mode: multiply;
  transition: transform 0.6s var(--ease-out);
}
.challenges__item:hover .challenges__item-visual img {
  transform: scale(1.05);
}

/* Text side */
.challenges__item-body {
  padding: 36px 44px;
}

.challenges__item-num {
  display: inline-block;
  font-size: 64px;
  font-weight: 700;
  color: var(--color-border);
  line-height: 1;
  margin-bottom: 12px;
  font-feature-settings: 'tnum';
}

.challenges__item-body h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}
.challenges__item-body p {
  font-size: 15px;
  color: var(--color-text-sub);
  line-height: 1.8;
}

/* Thin separator between items */
.challenges__item + .challenges__item {
  border-top: 1px solid var(--color-border);
}

.challenges__cta {
  margin-top: 56px;
  text-align: center;
}


/* -----------------------------------------------
   S5  PROJECTS
   ----------------------------------------------- */
.projects {
  padding: var(--section-py) 0;
  background: var(--color-projects-bg);
}

.projects__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--content-px);
}

.projects__badge {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-sub);
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 8px 24px;
  margin-bottom: 48px;
}
.projects__badge strong {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
}

.projects__carousel {
  position: relative;
  overflow: hidden;
}

.projects__track {
  display: flex;
  gap: 24px;
  width: max-content;
  will-change: transform;
  padding-bottom: 8px;
}

.projects__controls {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
}

.projects__btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  background: var(--color-card);
  color: var(--color-text);
  font-size: 18px;
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
  display: flex;
  align-items: center;
  justify-content: center;
}
.projects__btn:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.projects__btn:disabled {
  opacity: 0.3;
  cursor: default;
  background: var(--color-card);
  color: var(--color-text);
  border-color: var(--color-border);
}

.projects__card-link {
  text-decoration: none;
  color: inherit;
  flex: 0 0 380px;
  min-width: 380px;
}

.projects__card-link .projects__card {
  flex: none;
  width: 100%;
  height: 100%;
}

.projects__card {
  flex: 0 0 380px;
  min-width: 380px;
  background: var(--color-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
}

.projects__card-img {
  overflow: hidden;
}
.projects__card-img img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}
.projects__card:hover .projects__card-img img {
  transform: scale(1.05);
}

.projects__card-body {
  padding: 24px;
}

.projects__card-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary-light);
  background: var(--color-primary-tint);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 12px;
}

.projects__card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.5;
}

.projects__card-meta {
  font-size: 13px;
  color: var(--color-neutral);
  margin-bottom: 12px;
}

.projects__card-text {
  font-size: 15px;
  color: var(--color-text-sub);
  line-height: 1.7;
}


/* -----------------------------------------------
   S6  PROCESS
   ----------------------------------------------- */
.process {
  padding: var(--section-py) 0;
  background: var(--color-card);
}

.process__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--content-px);
  display: flex;
  gap: 56px;
}

.process__left {
  flex: 0 0 30%;
  position: sticky;
  top: calc(var(--header-h) + 40px);
  align-self: flex-start;
}
.process__left::after {
  content: "";
  display: block;
  margin-top: 40px;
  width: 100%;
  aspect-ratio: 1;
  background: url("asset/illustrations/step_hearing_v2.png") center / contain no-repeat;
  opacity: 0.07;
  pointer-events: none;
  filter: grayscale(0.3);
}

.process__lead {
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-text-sub);
  margin-bottom: 36px;
}

.process__cta-btn {
  /* btn--primary handles the rest */
}

.process__right {
  flex: 1;
}

.process__timeline {
  position: relative;
  padding-left: 60px;
}
.process__timeline::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 24px;
  bottom: 24px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
  border-radius: 2px;
}

.process__step {
  position: relative;
  margin-bottom: 24px;
}
.process__step:last-child {
  margin-bottom: 0;
}

.process__step-num {
  position: absolute;
  left: -60px;
  top: 16px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-card);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.process__step-content {
  background: var(--color-bg);
  border-radius: var(--radius-xl);
  padding: 20px 24px;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 24px;
}

.process__step-img {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--color-primary-tint);
}
.process__step:nth-child(2) .process__step-img { background: var(--color-accent-tint); }
.process__step:nth-child(3) .process__step-img { background: var(--color-warm-tint); }
.process__step:nth-child(4) .process__step-img { background: var(--color-primary-tint); }
.process__step:nth-child(5) .process__step-img { background: var(--color-accent-tint); }
.process__step:nth-child(6) .process__step-img { background: var(--color-warm-tint); }

.process__step-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  mix-blend-mode: multiply;
}

.process__step-content h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}
.process__step-content p {
  font-size: 14px;
  color: var(--color-text-sub);
  line-height: 1.7;
}
.process__step-text {
  flex: 1;
  min-width: 0;
}


/* -----------------------------------------------
   S7  CAREERS
   ----------------------------------------------- */
.careers {
  padding: var(--section-py) 0;
  background: linear-gradient(180deg, var(--color-primary-tint) 0%, var(--color-bg) 100%);
  position: relative;
  overflow: hidden;
}
.careers::after {
  content: "";
  position: absolute;
  right: calc(50% - var(--max-width) / 2 + var(--content-px));
  top: 120px;
  width: 440px;
  height: 440px;
  background: url("asset/illustrations/step_delivery_v2.png") center / contain no-repeat;
  opacity: 0.06;
  pointer-events: none;
  filter: grayscale(0.3);
}

.careers__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--content-px);
}

.careers__lead {
  font-size: 17px;
  line-height: 1.9;
  color: var(--color-text-sub);
  margin-bottom: 20px;
}

.careers__body {
  font-size: 15px;
  line-height: 2;
  color: var(--color-text-sub);
  margin-bottom: 16px;
}

.careers__body:last-of-type {
  margin-bottom: 48px;
}

.careers__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.careers__card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.35s var(--ease-out), transform 0.35s var(--ease-out);
}
.careers__card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
}

.careers__card-img {
  margin-bottom: 16px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-accent-tint);
}
.careers__card-img img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  mix-blend-mode: multiply;
}

.careers__card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.careers__card-text {
  font-size: 15px;
  color: var(--color-text-sub);
  line-height: 1.7;
}

.careers__cta-group {
  display: flex;
  align-items: center;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}


/* -----------------------------------------------
   TICKER
   ----------------------------------------------- */
.ticker {
  padding: 20px 0;
  background: var(--color-primary);
  overflow: hidden;
}
.ticker__track {
  display: flex;
  gap: 48px;
  width: max-content;
  animation: tickerScroll 25s linear infinite;
}
.ticker__item {
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  white-space: nowrap;
  letter-spacing: 0.04em;
}
@keyframes tickerScroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}


/* -----------------------------------------------
   S9  CONTACT
   ----------------------------------------------- */
.contact {
  padding: var(--section-py) 0;
  background: var(--color-secondary);
  color: var(--color-card);
}

.contact__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--content-px);
}

.contact__heading {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 16px;
}

.contact__lead {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 48px;
}

.contact__layout {
  display: flex;
  gap: 40px;
}

.contact__form-wrap {
  flex: 1;
}

.contact__form {
  background: var(--color-card);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-form);
}

.contact__form-row {
  margin-bottom: 20px;
}
.contact__form-row label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 6px;
}
.contact__form-row input,
.contact__form-row textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: inherit;
  font-size: 15px;
  letter-spacing: 0.02em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color 0.2s;
}
.contact__form-row input:focus,
.contact__form-row textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27, 67, 50, 0.08);
}
.contact__form-row textarea {
  resize: vertical;
}

.contact__side {
  flex: 0 0 300px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact__phone {
  padding: 32px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
}
.contact__phone-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 8px;
}
.contact__phone-num {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--color-card);
  margin-bottom: 4px;
  letter-spacing: 0.04em;
}
.contact__phone-hours {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

.contact__doc {
  padding: 32px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
}
.contact__doc-label {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}
.contact__doc-text {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 20px;
}


/* -----------------------------------------------
   S10  SAMPLE NOTE
   ----------------------------------------------- */
.sample-note {
  padding: 56px 0;
  background: #ECEAE6;
}

.sample-note__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--content-px);
  text-align: center;
}

.sample-note__badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-neutral);
  background: var(--color-card);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}

.sample-note__heading {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.sample-note__text {
  font-size: 14px;
  color: var(--color-text-sub);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}


/* -----------------------------------------------
   FOOTER TRANSITION
   ----------------------------------------------- */
.footer-transition {
  position: relative;
  height: 160px;
  background: var(--color-bg);
  margin-top: -1px;
}
.footer-transition__wave {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 120px;
  display: block;
}
.footer-transition__character {
  position: absolute;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  text-align: center;
  animation: characterBounce 3s ease-in-out infinite;
}
.footer-transition__character img {
  width: 96px;
  height: 96px;
  object-fit: cover;
  border-radius: 50%;
  background: var(--color-bg);
  border: 3px solid rgba(255,255,255,0.7);
  box-shadow: 0 4px 20px rgba(0,0,0,0.10);
  mix-blend-mode: multiply;
}
.footer-transition__speech {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
  margin-top: 6px;
  letter-spacing: 0.04em;
}
@keyframes characterBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* -----------------------------------------------
   FOOTER
   ----------------------------------------------- */
.footer {
  padding: 56px 0 40px;
  background: var(--color-secondary);
}
.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--content-px);
}
.footer__main {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 24px;
}
.footer__brand-col {
  flex: 0 0 auto;
}
.footer__logo {
  font-size: 20px;
  font-weight: 700;
  color: rgba(255,255,255,0.85);
  letter-spacing: 0.08em;
  display: block;
}
.footer__logo-en {
  display: block;
  font-size: 10px;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 4px;
}
.footer__tagline {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  line-height: 1.7;
  margin-top: 16px;
}
.footer__nav {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}
.footer__nav a {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  transition: color 0.3s;
}
.footer__nav a:hover {
  color: rgba(255,255,255,0.85);
}
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer__copy {
  font-size: 12px;
  color: rgba(255,255,255,0.3);
}
.footer__credit {
  font-size: 12px;
  color: rgba(255,255,255,0.2);
}


/* -----------------------------------------------
   MOBILE FIXED CTA
   ----------------------------------------------- */
.fixed-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 900;
  padding: 12px 20px;
  padding-bottom: calc(12px + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-border);
  transform: translateY(100%);
  transition: transform 0.35s var(--ease-out);
  display: none;
}
.fixed-cta.is-visible {
  transform: translateY(0);
}
.btn--fixed {
  width: 100%;
}


/* -----------------------------------------------
   MODAL
   ----------------------------------------------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  visibility: hidden;
  opacity: 0;
  transition: all 0.3s ease;
}
.modal.is-active {
  visibility: visible;
  opacity: 1;
}

.modal__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
}

.modal__content {
  position: relative;
  background: var(--color-card);
  border-radius: var(--radius-xl);
  padding: 48px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  box-shadow: 0 16px 64px rgba(0, 0, 0, 0.2);
}
.modal__content h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-primary);
}
.modal__content p {
  font-size: 15px;
  color: var(--color-text-sub);
  margin-bottom: 28px;
  line-height: 1.7;
}


/* ===============================================
   RESPONSIVE — TABLET (max-width: 1024px)
   =============================================== */
@media (max-width: 1024px) {
  :root {
    --content-px: 32px;
  }

  .about__inner   { gap: 48px; }
  .process__inner { gap: 48px; }

  .projects__card {
    flex: 0 0 340px;
    min-width: 340px;
  }
  .projects__card-link {
    flex: 0 0 340px;
    min-width: 340px;
  }


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


/* ===============================================
   RESPONSIVE — MOBILE (max-width: 768px)
   =============================================== */
@media (max-width: 768px) {
  :root {
    --section-py: 64px;
    --content-px: 20px;
  }

  body { font-size: 16px; }

  .sp-only  { display: inline; }
  .pc-only  { display: none; }

  .section-heading { font-size: 26px; }

  /* Header */
  .header__nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.98);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 28px;
    transform: translateX(100%);
    transition: transform 0.35s var(--ease-out);
    z-index: 999;
  }
  .header__nav.is-open {
    transform: translateX(0);
  }
  .header__link { font-size: 18px; }
  .header__link--cta {
    font-size: 16px;
    padding: 12px 32px;
  }
  .header__hamburger { display: flex; }

  /* Hero — stacked layout on mobile */
  .hero {
    min-height: auto;
    display: block;
  }
  .hero__heading { font-size: 28px; }
  .hero__sub { font-size: 14px; }
  .hero__img { object-position: center 40%; }
  .hero::after { height: 70%; }
  .hero__visual {
    position: relative;
    height: 50vh;
  }
  .hero__text {
    padding: 32px var(--content-px) 24px;
  }

  /* Hide desktop absolute circles, show mobile ticker */
  .hero__characters { display: none; }
  .hero__char-ticker {
    display: block;
    position: relative;
    overflow: hidden;
    background: var(--color-bg);
    padding: 16px 0;
    z-index: 3;
  }
  .hero__char-track {
    display: flex;
    gap: 14px;
    width: max-content;
    animation: heroCharScroll 24s linear infinite;
  }
  .hero__char-bubble {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    overflow: hidden;
    background: var(--color-bg);
    border: 2px solid rgba(255,255,255,0.7);
    box-shadow: 0 3px 12px rgba(0,0,0,0.10);
  }
  .hero__char-bubble img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    mix-blend-mode: multiply;
  }
  @keyframes heroCharScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
  }

  /* About */
  .about__inner {
    flex-direction: column;
    gap: 32px;
  }
  .about__left {
    position: relative;
    flex: none;
  }
  .about__left::after {
    margin: 16px auto 0;
    width: 180px;
    opacity: 0.06;
  }
  .about__card-title { font-size: 18px; }

  /* Services */
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  /* Challenges — stacked: full-width illustration + text below */
  .challenges__item {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .challenges__item:nth-child(even) {
    direction: ltr;
  }
  .challenges__item-visual {
    min-height: 220px;
    aspect-ratio: 16 / 10;
  }
  .challenges__item-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .challenges__item-body {
    padding: 24px 20px;
  }
  .challenges__item-num {
    font-size: 48px;
    margin-bottom: 4px;
  }
  .challenges__item-body h3 {
    font-size: 18px;
  }

  /* Projects carousel */
  .projects__card {
    flex: 0 0 320px;
    min-width: 320px;
  }
  .projects__card-link {
    flex: 0 0 320px;
    min-width: 320px;
  }

  /* Process */
  .process__inner {
    flex-direction: column;
    gap: 32px;
  }
  .process__left {
    position: relative;
    flex: none;
  }
  .process__left::after {
    margin: 16px auto 0;
    width: 160px;
    opacity: 0.06;
  }
  .process__cta-btn { display: none; }
  .process__step-content {
    flex-direction: row;
    gap: 16px;
    padding: 16px;
  }
  .process__step-img {
    width: 88px;
    height: 88px;
  }

  /* Careers */
  .careers::after {
    right: 50%;
    top: auto;
    bottom: 80px;
    transform: translateX(50%);
    width: 200px;
    height: 200px;
    opacity: 0.05;
  }
  .careers__grid {
    grid-template-columns: 1fr;
  }
  .careers__cta-group {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  /* Contact */
  .contact__heading { font-size: 26px; }
  .contact__layout {
    flex-direction: column;
  }
  .contact__side { flex: none; }
  .contact__form { padding: 28px; }

  /* Fixed CTA */
  .fixed-cta { display: block; }

  /* Footer */
  .footer__main {
    flex-direction: column;
    gap: 32px;
  }
  .footer__nav {
    gap: 16px 24px;
  }
  .footer__bottom {
    flex-direction: column;
    gap: 4px;
    text-align: center;
  }
  .footer-transition__character img {
    width: 64px;
    height: 64px;
  }

  /* Modal */
  .modal__content { padding: 32px 24px; }
}


/* ===============================================
   RESPONSIVE — SMALL MOBILE (max-width: 480px)
   =============================================== */
@media (max-width: 480px) {
  .hero__heading { font-size: 24px; }
  .section-heading { font-size: 22px; }

  .services__grid {
    grid-template-columns: 1fr;
  }

  .projects__card {
    flex: 0 0 280px;
    min-width: 280px;
  }
  .projects__card-link {
    flex: 0 0 280px;
    min-width: 280px;
  }

  .contact__heading { font-size: 22px; }
  .contact__form { padding: 20px; }

}