/* ==========================================
   CSS Custom Properties
   ========================================== */
:root {
  --color-dark: #0a192f;
  --color-dark-2: #112240;
  --color-bg: #f7f7f4;
  --color-accent: #5c9e31;
  --color-accent-light: #72b83e;
  --color-text: #1a1a2e;
  --color-text-light: #6b7280;
  --color-border: #e2e2d8;
  --color-white: #ffffff;
  --font-serif: 'Noto Serif JP', serif;
  --font-sans: 'Noto Sans JP', sans-serif;
  --font-en: 'Inter', sans-serif;
  --max-width: 1200px;
  --header-height: 72px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow: 0 4px 24px rgba(10, 25, 47, 0.07);
  --shadow-hover: 0 16px 48px rgba(10, 25, 47, 0.14);
  --radius: 4px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

ul {
  list-style: none;
}

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

button {
  cursor: pointer;
}

/* ==========================================
   Layout
   ========================================== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 80px);
}

/* ==========================================
   Typography
   ========================================== */
.section-label {
  display: block;
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.25em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3.5vw, 40px);
  font-weight: 600;
  line-height: 1.45;
  color: var(--color-dark);
}

.section-header {
  margin-bottom: 64px;
}

/* ==========================================
   Buttons
   ========================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 40px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.06em;
  border-radius: var(--radius);
  transition: var(--transition);
  cursor: pointer;
  border: 1.5px solid transparent;
  white-space: nowrap;
}

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

.btn--primary:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(92, 158, 49, 0.35);
}

.btn--outline {
  background: transparent;
  color: var(--color-dark);
  border-color: var(--color-dark);
}

.btn--outline:hover {
  background: var(--color-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

/* ==========================================
   Scroll Animations
   ========================================== */
.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.75s ease, transform 0.75s ease;
}

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

/* ==========================================
   Header
   ========================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--color-white);
  box-shadow: 0 1px 0 var(--color-border);
  transition: box-shadow 0.4s ease;
}

.header.is-scrolled {
  box-shadow: 0 2px 20px rgba(10, 25, 47, 0.1);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo-img {
  height: 30px;
  width: auto;
  display: block;
}


.header__nav .nav-list {
  display: flex;
  align-items: center;
  gap: 44px;
}

.nav-link {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-text-light);
  transition: var(--transition);
  position: relative;
  padding-bottom: 2px;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width 0.3s ease;
}

.nav-link:hover {
  color: var(--color-dark);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link--cta {
  padding: 8px 22px;
  border: 1px solid var(--color-dark);
  border-radius: var(--radius);
  color: var(--color-dark);
  transition: var(--transition);
}

.nav-link--cta::after {
  display: none;
}

.nav-link--cta:hover {
  background: var(--color-dark);
  border-color: var(--color-dark);
  color: var(--color-white);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  width: 40px;
  height: 40px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-dark);
  transition: var(--transition);
  transform-origin: center;
}

.hamburger.is-open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

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

.hamburger.is-open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile Nav */
.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: rgba(10, 25, 47, 0.98);
  z-index: 99;
  transform: translateY(-8px);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  pointer-events: none;
}

.mobile-nav.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav ul {
  padding: 16px 0 40px;
}

.mobile-nav__link {
  display: block;
  padding: 16px clamp(24px, 5vw, 80px);
  font-family: var(--font-en);
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.mobile-nav__link:hover {
  color: var(--color-white);
  padding-left: calc(clamp(24px, 5vw, 80px) + 8px);
}

/* ==========================================
   Hero
   ========================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: #050d1a;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 85% 65% at 72% 38%, rgba(92, 158, 49, 0.18) 0%, transparent 60%),
    radial-gradient(ellipse 65% 75% at 10% 80%, rgba(0, 180, 220, 0.08) 0%, transparent 55%),
    radial-gradient(ellipse 50% 50% at 90% 88%, rgba(92, 158, 49, 0.1) 0%, transparent 50%);
  animation: heroBgBreath 9s ease-in-out infinite alternate;
}

@keyframes heroBgBreath {
  0%   { opacity: 0.75; }
  100% { opacity: 1; }
}

.hero__bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(92, 158, 49, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(92, 158, 49, 0.045) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 65%, #050d1a 100%);
}

/* Canvas particles */
.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 1;
  padding-top: calc(var(--header-height) + 40px);
  padding-bottom: 100px;
}

.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.25em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 28px;
}

.hero__eyebrow-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px rgba(92, 158, 49, 0.9), 0 0 18px rgba(92, 158, 49, 0.5);
  animation: eyebrowPulse 2.5s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes eyebrowPulse {
  0%, 100% {
    box-shadow: 0 0 8px rgba(92, 158, 49, 0.9), 0 0 18px rgba(92, 158, 49, 0.5);
    opacity: 1;
  }
  50% {
    box-shadow: 0 0 4px rgba(92, 158, 49, 0.5), 0 0 8px rgba(92, 158, 49, 0.2);
    opacity: 0.55;
  }
}

.hero__title {
  font-family: var(--font-en);
  font-size: clamp(54px, 8.5vw, 108px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.025em;
  margin-bottom: 20px;
  padding-bottom: 0.1em;
  color: var(--color-white); /* fallback */
  background: linear-gradient(130deg, #ffffff 0%, #ffffff 45%, rgba(140, 220, 80, 0.88) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-family: var(--font-serif);
  font-size: clamp(15px, 2vw, 20px);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 28px;
  letter-spacing: 0.05em;
}

.hero__desc {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.5);
  line-height: 2.0;
  margin-bottom: 52px;
  max-width: 520px;
}

/* Hero CTA glow */
.hero .btn--primary {
  box-shadow: 0 0 24px rgba(92, 158, 49, 0.35), 0 4px 16px rgba(92, 158, 49, 0.2);
}
.hero .btn--primary:hover {
  box-shadow: 0 0 36px rgba(92, 158, 49, 0.5), 0 8px 28px rgba(92, 158, 49, 0.3);
}

.hero__scroll {
  position: absolute;
  bottom: 44px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.3);
  font-family: var(--font-en);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
}

.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(92, 158, 49, 0.7), transparent);
  animation: scrollPulse 2.2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 1; }
  49%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  50%  { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ==========================================
   What We Do
   ========================================== */
.what-we-do {
  padding: 128px 0;
  background: var(--color-white);
}

.what-we-do__lead {
  font-size: 16px;
  line-height: 2.1;
  color: var(--color-text-light);
  margin-bottom: 40px;
  max-width: 680px;
}

.shopify-logo-display {
  margin-bottom: 64px;
}

.shopify-logo-large {
  width: 200px;
  height: 200px;
  object-fit: contain;
  display: block;
  background: var(--color-white);
}

.strengths {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.strength {
  padding: 40px 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: var(--transition);
}

.strength:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-6px);
  border-color: transparent;
}

.strength__icon {
  width: 44px;
  height: 44px;
  color: var(--color-accent);
  margin-bottom: 24px;
}

.strength h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-dark);
}

.strength p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.9;
}

/* ==========================================
   Service
   ========================================== */
.service {
  padding: 128px 0;
  background: var(--color-bg);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 60px;
}

.service-card {
  background: var(--color-white);
  padding: 48px 36px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.service-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-8px);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card__num {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.service-card__title {
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 16px;
  line-height: 1.5;
}

.service-card__desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.95;
  margin-bottom: 28px;
}

.service-card__list {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
}

.service-card__list li {
  font-size: 13px;
  color: var(--color-text-light);
  padding: 6px 0 6px 18px;
  position: relative;
  line-height: 1.6;
}

.service-card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.6;
}

.service__cta {
  text-align: center;
}

/* ==========================================
   Works
   ========================================== */
.works {
  padding: 128px 0;
  background: var(--color-dark);
}

.works .section-label {
  color: var(--color-accent);
}

.works .section-title {
  color: var(--color-white);
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.work-card {
  background: var(--color-dark-2);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.work-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
  border-color: rgba(255, 255, 255, 0.1);
}

.work-card__img {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.work-card__img--01 {
  background:
    linear-gradient(135deg, #1a0e0a 0%, #6b3a1f 40%, #b8762a 75%, #d4983c 100%);
}

.work-card__img--02 {
  background:
    linear-gradient(135deg, #0d1421 0%, #1e3a5f 40%, #2e5f8f 70%, #4a88b8 100%);
}

.work-card__overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 25, 47, 0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.35s ease;
}

.work-card__overlay span {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.6);
  padding: 10px 28px;
  transition: var(--transition);
}

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

.work-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
  transition: transform 0.5s ease;
}

.work-card:hover .work-card__img img {
  transform: scale(1.04);
}

.work-card:hover .work-card__overlay span {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.work-card__info {
  padding: 32px 36px 36px;
}

.work-card__tag {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  text-transform: uppercase;
  display: block;
  margin-bottom: 12px;
}

.work-card__title {
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
  letter-spacing: 0.01em;
}

.work-card__desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.85;
}

/* ==========================================
   About
   ========================================== */
.about {
  padding: 128px 0;
  background: var(--color-white);
}

.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 88px;
  align-items: start;
}

.about__ceo {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.about__ceo-photo {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  overflow: hidden;
}

.about__ceo-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
}

.ceo-placeholder {
  width: 80px;
  height: 80px;
  color: rgba(10, 25, 47, 0.18);
}

.ceo-role {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.ceo-name {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.ceo-bio {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 2.1;
}

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

.company-table tr {
  border-bottom: 1px solid var(--color-border);
}

.company-table tr:first-child {
  border-top: 1px solid var(--color-border);
}

.company-table th {
  padding: 22px 0;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-light);
  width: 32%;
  text-align: left;
  vertical-align: top;
  letter-spacing: 0.02em;
}

.company-table td {
  padding: 22px 0 22px 16px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.85;
  vertical-align: top;
}

/* ==========================================
   Contact
   ========================================== */
.contact {
  padding: 128px 0;
  background: var(--color-bg);
}

.contact__lead {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 2.0;
  margin-bottom: 60px;
  max-width: 560px;
}

.contact-form {
  max-width: 640px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.form-group {
  margin-bottom: 28px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 8px;
  letter-spacing: 0.03em;
}

.required {
  color: var(--color-accent);
  margin-left: 2px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(107, 114, 128, 0.5);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(92, 158, 49, 0.12);
}

.form-group textarea {
  resize: vertical;
  min-height: 144px;
  line-height: 1.7;
}

.form-submit {
  margin-top: 40px;
}

/* ==========================================
   Footer
   ========================================== */
.footer {
  background: var(--color-dark);
  padding: 64px 0 36px;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__logo {
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.04em;
  display: block;
  margin-bottom: 8px;
  transition: opacity 0.2s ease;
}

.footer__logo:hover {
  opacity: 0.8;
}

.footer__tagline {
  font-family: var(--font-en);
  font-size: 11px;
  color: rgba(255, 255, 255, 0.35);
  letter-spacing: 0.12em;
}

.footer__nav {
  display: flex;
  gap: 36px;
  align-items: center;
}

.footer__nav a {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.55);
  transition: color 0.2s ease;
}

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

.footer__bottom p {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.25);
  letter-spacing: 0.06em;
}

/* ==========================================
   Responsive — Tablet (≤1024px)
   ========================================== */
@media (max-width: 1024px) {
  .strengths {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .service-grid .service-card:last-child {
    grid-column: 1 / -1;
    max-width: 480px;
  }

  .about__inner {
    gap: 56px;
  }
}

/* ==========================================
   Responsive — Mobile (≤768px)
   ========================================== */
@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }

  .header__nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero {
    min-height: 100svh;
  }

  .hero__content {
    padding-top: calc(var(--header-height) + 60px);
    padding-bottom: 120px;
  }

  .hero__desc br {
    display: none;
  }

  .hero__scroll {
    display: none;
  }

  .what-we-do,
  .service,
  .works,
  .about,
  .contact {
    padding: 88px 0;
  }

  .section-header {
    margin-bottom: 48px;
  }

  .strengths {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .strength {
    padding: 32px 24px;
  }

  .service-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .service-grid .service-card:last-child {
    grid-column: auto;
    max-width: none;
  }

  .service-card {
    padding: 36px 28px;
  }

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

  .work-card__info {
    padding: 24px 28px 28px;
  }

  .about__inner {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 36px;
    margin-bottom: 36px;
    padding-bottom: 36px;
  }

  .footer__nav {
    gap: 24px;
    flex-wrap: wrap;
  }
}

/* ==========================================
   Responsive — Small Mobile (≤480px)
   ========================================== */
@media (max-width: 480px) {
  .hero__title {
    font-size: clamp(44px, 14vw, 64px);
  }

  .btn {
    padding: 14px 32px;
    font-size: 13px;
  }
}

/* ==========================================
   Thank You Modal
   ========================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 25, 47, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-white);
  border-radius: 12px;
  padding: 48px 40px;
  max-width: 440px;
  width: 100%;
  text-align: center;
  box-shadow: 0 24px 80px rgba(10, 25, 47, 0.2);
  transform: translateY(20px) scale(0.96);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.is-open .modal {
  transform: translateY(0) scale(1);
}

.modal__icon {
  margin-bottom: 24px;
}

.modal__icon svg {
  width: 64px;
  height: 64px;
}

.modal__title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: 16px;
}

.modal__body {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 32px;
}

.modal__close {
  min-width: 160px;
}

@media (max-width: 480px) {
  .modal {
    padding: 36px 24px;
  }

  .modal__title {
    font-size: 18px;
  }
}