/* ===== Variables ===== */
:root {
  --color-base: #FFFFFF;
  --color-base-2: #F8FAFC;
  --color-text: #0F172A;
  --color-text-sub: #475569;
  --color-accent: #0EA5E9;      /* 科学ブルー */
  --color-accent-deep: #0369A1; /* 信頼の深み */
  --color-accent-cta: #06B6D4;  /* 行動喚起 */
  --color-divider: #E2E8F0;
  --color-warning: #DC2626;

  --font-heading: "Inter", "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
  --font-body: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;

  --container-max: 1100px;
  --section-py: 120px;
  --header-h: 72px;
}

@media (max-width: 768px) {
  :root {
    --section-py: 72px;
    --header-h: 60px;
  }
}

/* ===== Common ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 32px;
}
@media (max-width: 768px) {
  .container {
    padding-inline: 20px;
  }
}

.sp-only { display: none; }
@media (max-width: 768px) {
  .sp-only { display: inline; }
  .hero__br-pc { display: none; }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 200px;
  height: 56px;
  padding: 0 32px;
  border-radius: 4px;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: transform 0.2s ease, background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
  position: relative;
  overflow: hidden;
}
.btn--primary {
  background-color: var(--color-accent);
  color: #FFFFFF;
  box-shadow: 0 8px 24px rgba(14, 165, 233, 0.25);
}
.btn--primary:hover {
  background-color: var(--color-accent-deep);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(3, 105, 161, 0.3);
}
.btn--ghost {
  background-color: transparent;
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.6);
}
.btn--ghost:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: #FFFFFF;
}
.btn--block {
  width: 100%;
  min-width: 0;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
  z-index: 100;
}
.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1;
  color: var(--color-text);
}
.header__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-deep) 100%);
  color: #FFFFFF;
  font-size: 14px;
  letter-spacing: 0.02em;
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}
.header__logo-text {
  font-size: 13px;
  letter-spacing: 0.12em;
  line-height: 1.2;
}
.header__logo-text--sub {
  color: var(--color-accent);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.header__nav-link {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--color-text);
  position: relative;
  padding: 6px 0;
}
.header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-accent);
  transition: width 0.3s ease;
}
.header__nav-link:hover::after {
  width: 100%;
}
.header__nav-link--cta {
  background-color: var(--color-accent);
  color: #FFFFFF;
  padding: 10px 20px;
  border-radius: 4px;
  font-weight: 600;
}
.header__nav-link--cta::after { display: none; }
.header__nav-link--cta:hover {
  background-color: var(--color-accent-deep);
}

/* Burger */
.header__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 28px;
  height: 28px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  z-index: 101;
  color: var(--color-text);
}
.header__burger span {
  display: block;
  width: 100%;
  height: 1px;
  background-color: currentColor;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.header__burger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.header__burger.is-open span:nth-child(2) {
  opacity: 0;
}
.header__burger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.header__overlay { display: none; }

@media (max-width: 768px) {
  .header__nav {
    position: fixed;
    top: 0;
    right: 0;
    left: auto;
    width: 280px;
    max-width: 100vw;
    height: 100vh;
    flex-direction: column;
    justify-content: center;
    gap: 28px;
    padding: 80px 32px 32px;
    background-color: #FFFFFF;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.08);
    z-index: 100;
  }
  .header__nav.is-open {
    transform: translateX(0);
  }
  .header__nav-link {
    font-size: 16px;
    width: 100%;
    text-align: center;
  }
  .header__nav-link--cta {
    margin-top: 8px;
  }
  .header__burger {
    display: flex;
  }
  .header__overlay {
    display: block;
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 99;
  }
  .header__overlay.is-visible {
    opacity: 1;
    visibility: visible;
  }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 80px) 0 80px;
  overflow: hidden;
  color: #FFFFFF;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: heroZoom 20s ease-out infinite alternate;
}
@keyframes heroZoom {
  from { transform: scale(1); }
  to   { transform: scale(1.08); }
}
.hero__bg-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(3, 105, 161, 0.85) 0%, rgba(15, 23, 42, 0.82) 100%);
}
.hero__bg-overlay::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(14, 165, 233, 0.35) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(6, 182, 212, 0.25) 0%, transparent 45%);
}
.hero__inner {
  position: relative;
  z-index: 1;
  text-align: center;
}
.hero__company {
  font-family: var(--font-heading);
  font-size: 13px;
  letter-spacing: 0.25em;
  margin-bottom: 16px;
  color: var(--color-accent-cta);
  font-weight: 500;
}
.hero__tagline {
  font-family: var(--font-heading);
  font-size: 14px;
  letter-spacing: 0.15em;
  margin-bottom: 32px;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 400;
}
.hero__catch {
  font-family: var(--font-heading);
  font-size: clamp(36px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.02em;
  margin-bottom: 40px;
}
.hero__catch-mark {
  color: var(--color-accent-cta);
  position: relative;
  display: inline-block;
}
.hero__catch-mark::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent-cta), transparent);
}
.hero__lead {
  font-size: 15px;
  line-height: 2;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 24px;
}
.hero__lead--sub {
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 48px;
}
.hero__cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: calc(var(--header-h) + 56px) 0 64px;
  }
  .hero__catch {
    font-size: 32px;
  }
  .hero__lead {
    font-size: 14px;
  }
  .btn {
    min-width: 0;
    width: 100%;
    max-width: 320px;
  }
  .hero__cta {
    flex-direction: column;
    align-items: center;
  }
}

/* ===== Section common ===== */
.section {
  padding: var(--section-py) 0;
  position: relative;
}
.section__head {
  text-align: center;
  margin-bottom: 64px;
}
.section__eyebrow {
  font-family: var(--font-heading);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.section__eyebrow--light { color: var(--color-accent-cta); }
.section__title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--color-text);
  margin-bottom: 24px;
}
.section__title--light { color: #FFFFFF; }
.section__divider {
  width: 64px;
  height: 2px;
  background-color: var(--color-accent);
  margin: 0 auto;
}
.section__divider--light { background-color: var(--color-accent-cta); }

/* ===== About ===== */
.about {
  background-color: var(--color-base);
}
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about__text p {
  color: var(--color-text-sub);
  font-size: 16px;
  line-height: 2;
  margin-bottom: 24px;
}
.about__text strong {
  color: var(--color-text);
  font-weight: 700;
}
.about__points {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--color-divider);
}
.about__points li {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 15px;
  color: var(--color-text);
}
.about__points-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: rgba(14, 165, 233, 0.1);
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.about__visual {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}
.about__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 60%, rgba(3, 105, 161, 0.6));
  pointer-events: none;
}
.about__visual-tag {
  position: absolute;
  right: 24px;
  bottom: 24px;
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: #FFFFFF;
  text-align: right;
  z-index: 1;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .about__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* ===== Problem ===== */
.problem {
  background-color: var(--color-base-2);
  position: relative;
}
.problem::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 90% 10%, rgba(14, 165, 233, 0.06) 0%, transparent 40%);
  pointer-events: none;
}
.problem__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.problem__card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-divider);
  border-radius: 8px;
  padding: 32px 24px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.problem__card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
  box-shadow: 0 12px 32px rgba(14, 165, 233, 0.1);
}
.problem__card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background-color: rgba(220, 38, 38, 0.08);
  color: var(--color-warning);
  border-radius: 50%;
  margin-bottom: 20px;
}
.problem__card-icon svg {
  width: 28px;
  height: 28px;
}
.problem__card-text {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.6;
}

.problem__answer {
  text-align: center;
}
.problem__answer-arrow {
  font-size: 24px;
  color: var(--color-accent);
  margin-bottom: 16px;
  font-weight: 700;
}
.problem__answer-text {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: clamp(18px, 2.5vw, 24px);
  font-weight: 700;
  color: var(--color-text);
  padding: 16px 40px;
  background-color: #FFFFFF;
  border: 1px solid var(--color-divider);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}
.problem__answer-text strong {
  color: var(--color-accent-deep);
}

@media (max-width: 768px) {
  .problem__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .problem__card {
    padding: 24px 16px;
  }
}

/* ===== Solution ===== */
.solution {
  background-color: var(--color-base);
}
.solution__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.sol-card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-divider);
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}
.sol-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.1);
}
.sol-card__num {
  position: absolute;
  top: 16px;
  right: 20px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  background-color: rgba(255, 255, 255, 0.95);
  padding: 4px 10px;
  border-radius: 4px;
  z-index: 1;
}
.sol-card__image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.sol-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.sol-card:hover .sol-card__image img {
  transform: scale(1.05);
}
.sol-card__title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  padding: 24px 28px 12px;
  line-height: 1.4;
}
.sol-card__title-sub {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-sub);
  margin-top: 4px;
  letter-spacing: 0.02em;
}
.sol-card__text {
  padding: 0 28px 28px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--color-text-sub);
}

@media (max-width: 768px) {
  .solution__grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .sol-card__title {
    font-size: 18px;
    padding: 20px 20px 8px;
  }
  .sol-card__text {
    padding: 0 20px 24px;
  }
}

/* ===== Strength ===== */
.strength {
  background-color: var(--color-base-2);
  position: relative;
}
.strength::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 10% 90%, rgba(14, 165, 233, 0.06) 0%, transparent 45%);
  pointer-events: none;
}
.strength__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 56px;
}
.strength__item {
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 32px 24px;
  text-align: center;
  border-top: 3px solid var(--color-accent);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.strength__item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
}
.strength__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.12), rgba(3, 105, 161, 0.06));
  color: var(--color-accent);
  border-radius: 50%;
  margin-bottom: 20px;
}
.strength__icon svg {
  width: 32px;
  height: 32px;
}
.strength__title {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.5;
  margin-bottom: 12px;
}
.strength__text {
  font-size: 13px;
  line-height: 1.8;
  color: var(--color-text-sub);
}

.strength__closing {
  text-align: center;
  font-family: var(--font-heading);
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.8;
  color: var(--color-text);
  font-weight: 500;
  padding: 32px;
  background-color: #FFFFFF;
  border-radius: 8px;
  border-left: 4px solid var(--color-accent);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}
.strength__closing strong {
  color: var(--color-accent-deep);
  font-weight: 800;
}

@media (max-width: 768px) {
  .strength__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .strength__item {
    padding: 24px 16px;
  }
}

/* ===== Fields ===== */
.fields {
  background-color: var(--color-base);
}
.fields__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}
.fields__item {
  text-align: center;
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.3s ease;
}
.fields__item:hover {
  transform: translateY(-4px);
}
.fields__image {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  position: relative;
}
.fields__image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(15, 23, 42, 0.7));
}
.fields__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.fields__item:hover .fields__image img {
  transform: scale(1.08);
}
.fields__label {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 16px;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 0.05em;
  z-index: 1;
}

@media (max-width: 768px) {
  .fields__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .fields__label {
    font-size: 13px;
  }
}

/* ===== Contact ===== */
.contact {
  background: linear-gradient(135deg, #0F172A 0%, #0369A1 100%);
  position: relative;
  overflow: hidden;
}
.contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 80% 20%, rgba(14, 165, 233, 0.25) 0%, transparent 50%),
    radial-gradient(circle at 20% 80%, rgba(6, 182, 212, 0.18) 0%, transparent 50%);
  pointer-events: none;
}
.contact > .container {
  position: relative;
  z-index: 1;
}
.contact__lead {
  text-align: center;
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  line-height: 2;
  margin-bottom: 56px;
}
.contact__grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 48px;
  align-items: start;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 32px;
  padding: 32px;
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  backdrop-filter: blur(4px);
}
.contact__info-label {
  font-family: var(--font-heading);
  font-size: 11px;
  letter-spacing: 0.25em;
  color: var(--color-accent-cta);
  margin-bottom: 8px;
  font-weight: 600;
}
.contact__info-value {
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 600;
  word-break: break-all;
}
.contact__info-value--text {
  font-size: 14px;
  font-weight: 400;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.9);
}
.contact__info-value a {
  color: #FFFFFF;
  border-bottom: 1px solid rgba(14, 165, 233, 0.5);
  padding-bottom: 2px;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.contact__info-value a:hover {
  color: var(--color-accent-cta);
  border-color: var(--color-accent-cta);
}

.contact__form {
  background-color: #FFFFFF;
  padding: 40px;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}
.form-row {
  margin-bottom: 24px;
}
.form-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}
.form-required {
  display: inline-block;
  padding: 2px 8px;
  background-color: var(--color-warning);
  color: #FFFFFF;
  font-size: 10px;
  border-radius: 3px;
  font-weight: 600;
  letter-spacing: 0.05em;
}
.form-input {
  width: 100%;
  height: 48px;
  padding: 0 16px;
  border: 1px solid var(--color-divider);
  border-radius: 4px;
  background-color: var(--color-base-2);
  color: var(--color-text);
  transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}
.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  background-color: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}
.form-input--textarea {
  height: auto;
  min-height: 140px;
  padding: 12px 16px;
  line-height: 1.7;
}
select.form-input {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' fill='none' stroke='%23475569' stroke-width='1.5'%3E%3Cpath d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 12px;
  padding-right: 40px;
}
.form-note {
  font-size: 12px;
  color: var(--color-text-sub);
  margin-bottom: 16px;
  padding: 12px 16px;
  background-color: rgba(220, 38, 38, 0.06);
  color: #B91C1C;
  border-left: 3px solid var(--color-warning);
  border-radius: 0 4px 4px 0;
}
.form-feedback {
  margin-top: 16px;
  padding: 12px 16px;
  background-color: rgba(14, 165, 233, 0.08);
  color: var(--color-accent-deep);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 4px 4px 0;
  font-size: 13px;
  font-weight: 500;
}

@media (max-width: 768px) {
  .contact__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .contact__form {
    padding: 24px;
  }
  .contact__info {
    padding: 24px;
  }
}

/* ===== Footer ===== */
.footer {
  background-color: #0B1220;
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 32px;
}
.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 32px;
}
.footer__brand {
  flex-shrink: 0;
}
.footer__logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.footer__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-deep) 100%);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 13px;
}
.footer__logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.12em;
  color: #FFFFFF;
}
.footer__tagline {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}
.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.footer__nav-link {
  font-family: var(--font-heading);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.2s ease;
}
.footer__nav-link:hover {
  color: var(--color-accent-cta);
}
.footer__bottom {
  text-align: center;
}
.footer__copyright {
  font-family: var(--font-heading);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 16px;
}
.footer__note {
  font-size: 11px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.4);
}

@media (max-width: 768px) {
  .footer__top {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }
  .footer__nav {
    gap: 16px 20px;
  }
}

/* ===== Scroll Animations ===== */
[data-anim] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
  transition-delay: var(--anim-delay, 0s);
}
[data-anim].is-visible {
  opacity: 1;
  transform: translateY(0);
}