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

:root {
  /* Colors */
  --clr-bg: #070a12;
  --clr-surface: #0d1121;
  --clr-surface-2: #131929;
  --clr-border: rgba(255,255,255,0.07);
  --clr-text: #e8eaf6;
  --clr-text-muted: rgba(232,234,246,0.55);
  --clr-accent: #6366f1;
  --clr-accent-2: #a78bfa;
  --clr-accent-3: #38bdf8;
  --clr-green: #22d3a8;
  --clr-orange: #fb923c;

  /* Gradients */
  --grad-accent: linear-gradient(135deg, #6366f1 0%, #a78bfa 100%);
  --grad-green: linear-gradient(135deg, #22d3a8 0%, #38bdf8 100%);
  --grad-orange: linear-gradient(135deg, #fb923c 0%, #f43f5e 100%);
  --grad-hero: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(99,102,241,0.35) 0%, transparent 70%);

  /* Typography */
  --font-en: 'Inter', sans-serif;
  --font-ja: 'Noto Sans JP', sans-serif;

  /* Spacing */
  --section-py: 120px;
  --container-max: 1200px;
  --container-px: 24px;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  /* Shadows */
  --shadow-card: 0 4px 32px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 60px rgba(99,102,241,0.25);
}

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

body {
  font-family: var(--font-ja);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ============================================
   UTILITIES
   ============================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

.section {
  padding: var(--section-py) 0;
}

.br-pc { display: block; }

/* ============================================
   HEADER / NAV
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: background 0.4s, backdrop-filter 0.4s, box-shadow 0.4s;
}

.header.scrolled {
  background: rgba(7, 10, 18, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--clr-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

.nav__logo {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: 0.02em;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav__link {
  font-family: var(--font-en);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  color: var(--clr-text-muted);
  transition: color 0.2s, background 0.2s;
}

.nav__link:hover {
  color: var(--clr-text);
  background: rgba(255,255,255,0.06);
}

.nav__link--cta {
  background: var(--grad-accent);
  color: #fff !important;
  -webkit-text-fill-color: #fff !important;
  padding: 8px 20px;
  border-radius: 100px;
  font-weight: 600;
  transition: opacity 0.2s, transform 0.2s;
}

.nav__link--cta:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 80px;
}

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

.hero__gradient {
  position: absolute;
  inset: 0;
  background:
    var(--grad-hero),
    radial-gradient(ellipse 60% 50% at 80% 50%, rgba(167,139,250,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(56,189,248,0.08) 0%, transparent 60%);
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.5;
}

.hero__content {
  position: relative;
  z-index: 1;
  padding: 80px 0 120px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-en);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-accent-2);
  background: rgba(99,102,241,0.12);
  border: 1px solid rgba(99,102,241,0.25);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--clr-green);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34,211,168,0.6); }
  50% { box-shadow: 0 0 0 6px rgba(34,211,168,0); }
}

.hero__title {
  font-family: var(--font-ja);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  color: #fff;
}

.hero__title em {
  font-style: normal;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--clr-text-muted);
  line-height: 1.8;
  margin-bottom: 48px;
  max-width: 560px;
}

.hero__subtitle strong {
  color: var(--clr-text);
  font-weight: 700;
}

.hero__stats {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 48px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 20px 0;
  width: fit-content;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 36px;
}

.stat__num {
  font-family: var(--font-en);
  font-size: 2.25rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
  margin-bottom: 6px;
}

.stat__num small {
  font-size: 1rem;
  font-weight: 600;
  opacity: 0.7;
}

.stat__label {
  font-size: 0.75rem;
  color: var(--clr-text-muted);
  white-space: nowrap;
}

.stat__divider {
  width: 1px;
  height: 40px;
  background: var(--clr-border);
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 1;
  opacity: 0.4;
  font-family: var(--font-en);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, transparent, var(--clr-text));
  animation: scrollAnim 2s ease-in-out infinite;
}

@keyframes scrollAnim {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 14px 28px;
  border-radius: 100px;
  transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
  cursor: pointer;
  border: none;
  letter-spacing: 0.01em;
}

.btn--primary {
  background: var(--grad-accent);
  color: #fff;
  box-shadow: 0 4px 24px rgba(99,102,241,0.35);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(99,102,241,0.5);
}

.btn--ghost {
  background: transparent;
  color: var(--clr-text);
  border: 1px solid var(--clr-border);
}

.btn--ghost:hover {
  background: rgba(255,255,255,0.06);
  transform: translateY(-2px);
}

.btn--xl {
  font-size: 1.0625rem;
  padding: 18px 40px;
}

/* ============================================
   SECTION HEADERS
   ============================================ */
.section__header {
  text-align: center;
  margin-bottom: 80px;
}

.section__tag {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-accent-2);
  margin-bottom: 16px;
}

.section__title {
  font-family: var(--font-ja);
  font-size: clamp(1.875rem, 4vw, 3rem);
  font-weight: 900;
  line-height: 1.2;
  color: #fff;
  margin-bottom: 20px;
}

.section__desc {
  font-size: 1.0625rem;
  color: var(--clr-text-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ============================================
   ABOUT
   ============================================ */
.about {
  background: var(--clr-surface);
}

.about__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.about__card {
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.about__card:hover {
  transform: translateY(-6px);
  border-color: rgba(99,102,241,0.3);
  box-shadow: 0 20px 40px rgba(99,102,241,0.15);
}

.about__icon {
  width: 52px;
  height: 52px;
  background: rgba(99,102,241,0.15);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.25rem;
  color: var(--clr-accent-2);
}

.about__card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.4;
}

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

/* ============================================
   WORKS
   ============================================ */
.works {
  background: var(--clr-bg);
}

.work__item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 120px;
}

.work__item:last-child {
  margin-bottom: 0;
}

.work__item--right {
  direction: rtl;
}

.work__item--right > * {
  direction: ltr;
}

/* Phone mock */
.work__media {
  position: relative;
  display: flex;
  justify-content: center;
}

.work__phone-wrap {
  position: relative;
}

.work__phone {
  width: 260px;
  height: 520px;
  background: #111827;
  border-radius: 40px;
  border: 3px solid rgba(255,255,255,0.1);
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.05);
  position: relative;
}

.work__phone::before {
  content: '';
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 14px;
  background: #1a2133;
  border-radius: 10px;
  z-index: 10;
}

.work__screen {
  width: 100%;
  height: 100%;
  overflow: hidden;
  position: relative;
}

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

.work__screen-img--phone {
  object-fit: contain;
  background: #fff;
  padding: 12px 0;
}

/* CalmPulse screen */
.work__screen--calmpulse {
  background: #1a1a2e;
}

/* MiNTO / Ridelane screen */
.work__screen--minto {
  background: #29a8ff;
}

.work__screen--ridelane {
  background: #1e3a5f;
}

/* Badges */
.work__badge-wrap {
  position: absolute;
  bottom: -16px;
  right: -16px;
}

.work__badge {
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8125rem;
  color: var(--clr-text-muted);
  box-shadow: var(--shadow-card);
  white-space: nowrap;
}

.work__badge i {
  color: var(--clr-accent-2);
  font-size: 1rem;
}

.work__badge strong {
  display: block;
  font-family: var(--font-en);
  font-size: 1rem;
  font-weight: 800;
  color: var(--clr-accent-2);
}

.work__badge--fast i { color: var(--clr-green); }
.work__badge--fast strong { color: var(--clr-green); }

.work__badge--ultra i { color: #fb923c; }
.work__badge--ultra strong { color: #fb923c; }

/* Work info */
.work__tag-row {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.work__tag {
  font-family: var(--font-en);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 100px;
}

.work__tag--health { background: rgba(167,139,250,0.15); color: #a78bfa; }
.work__tag--wellness { background: rgba(34,211,168,0.15); color: var(--clr-green); }
.work__tag--social { background: rgba(56,189,248,0.15); color: #38bdf8; }
.work__tag--chat { background: rgba(99,102,241,0.15); color: #818cf8; }
.work__tag--ai { background: rgba(99,102,241,0.15); color: #818cf8; }
.work__tag--edu { background: rgba(251,146,60,0.15); color: #fb923c; }
.work__tag--sports { background: rgba(34,211,168,0.15); color: var(--clr-green); }
.work__tag--map { background: rgba(56,189,248,0.15); color: #38bdf8; }

.work__title {
  font-family: var(--font-en);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.work__desc {
  font-size: 1rem;
  color: var(--clr-text-muted);
  line-height: 1.8;
  margin-bottom: 28px;
}

.work__features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 16px;
  margin-bottom: 36px;
}

.work__features li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--clr-text-muted);
}

.work__features i {
  color: var(--clr-green);
  font-size: 0.75rem;
  flex-shrink: 0;
}

.work__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-en);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--clr-accent-2);
  border-bottom: 1px solid rgba(167,139,250,0.3);
  padding-bottom: 4px;
  transition: color 0.2s, border-color 0.2s, gap 0.2s;
}

.work__link:hover {
  color: #fff;
  border-color: rgba(255,255,255,0.3);
  gap: 12px;
}

/* ============================================
   TIMELINE
   ============================================ */
.timeline {
  background: var(--clr-surface);
}

.timeline__wrap {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
}

.timeline__line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--clr-accent), var(--clr-accent-2), transparent);
  transform: translateX(-50%);
}

.timeline__item {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  align-items: center;
  margin-bottom: 60px;
}

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

.timeline__item:nth-child(odd) .timeline__card {
  grid-column: 1;
  text-align: right;
}

.timeline__item:nth-child(even) .timeline__card {
  grid-column: 3;
  text-align: left;
}

.timeline__dot {
  width: 52px;
  height: 52px;
  background: var(--grad-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 6px rgba(99,102,241,0.15), var(--shadow-glow);
}

.timeline__dot span {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 800;
  color: #fff;
}

.timeline__card {
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  transition: border-color 0.3s, transform 0.3s;
}

.timeline__card:hover {
  border-color: rgba(99,102,241,0.3);
  transform: translateY(-3px);
}

.timeline__week {
  font-family: var(--font-en);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-accent-2);
  display: block;
  margin-bottom: 8px;
}

.timeline__card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

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

/* ============================================
   CTA
   ============================================ */
.cta {
  position: relative;
  overflow: hidden;
  text-align: center;
  background: var(--clr-bg);
}

.cta__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.cta__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.15;
}

.cta__glow--1 {
  width: 600px;
  height: 600px;
  background: var(--clr-accent);
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
}

.cta__glow--2 {
  width: 400px;
  height: 400px;
  background: var(--clr-accent-2);
  bottom: -100px;
  right: 10%;
}

.cta__content {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 0 auto;
}

.cta__title {
  font-family: var(--font-ja);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 20px;
}

.cta__title em {
  font-style: normal;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta__desc {
  font-size: 1.0625rem;
  color: var(--clr-text-muted);
  line-height: 1.8;
  margin-bottom: 40px;
}

.cta__note {
  margin-top: 20px;
  font-size: 0.8125rem;
  color: var(--clr-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.cta__note i {
  color: var(--clr-green);
}

/* ============================================
   LOGO X MARK
   ============================================ */
.logo__x {
  display: inline-block;
  margin: 0 3px;
  font-style: normal;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================
   CONTACT FORM
   ============================================ */
.contact-form {
  width: 100%;
  max-width: 600px;
  margin: 0 auto 32px;
  text-align: left;
}

.contact-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.contact-form__group {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 16px;
}

.contact-form__group label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  letter-spacing: 0.02em;
}

.req {
  font-size: 0.6875rem;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
  margin-left: 4px;
}

.contact-form__group input,
.contact-form__group select,
.contact-form__group textarea {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  color: var(--clr-text);
  font-family: var(--font-ja);
  font-size: 0.9375rem;
  padding: 12px 16px;
  outline: none;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
}

.contact-form__group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236366f1' stroke-width='1.8' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  cursor: pointer;
}

.contact-form__group select option {
  background: var(--clr-surface-2);
  color: var(--clr-text);
}

.contact-form__group input::placeholder,
.contact-form__group textarea::placeholder {
  color: rgba(232,234,246,0.25);
}

.contact-form__group input:focus,
.contact-form__group select:focus,
.contact-form__group textarea:focus {
  border-color: rgba(99,102,241,0.6);
  background: rgba(99,102,241,0.07);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.12);
}

.contact-form__group input.error,
.contact-form__group select.error,
.contact-form__group textarea.error {
  border-color: rgba(244, 63, 94, 0.7);
  box-shadow: 0 0 0 3px rgba(244,63,94,0.1);
}

.contact-form__group textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form__btn {
  width: 100%;
  justify-content: center;
  margin-top: 8px;
}

.contact-form__msg {
  margin-top: 16px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  text-align: center;
  display: none;
}

.contact-form__msg.success {
  display: block;
  background: rgba(34,211,168,0.12);
  border: 1px solid rgba(34,211,168,0.3);
  color: var(--clr-green);
}

.contact-form__msg.error {
  display: block;
  background: rgba(244,63,94,0.1);
  border: 1px solid rgba(244,63,94,0.3);
  color: #f87171;
}

.contact-form__btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

/* Spinner */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@media (max-width: 540px) {
  .contact-form__row {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  padding: 64px 0 32px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 48px;
}

.footer__logo {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 1.25rem;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
  margin-bottom: 12px;
}

.footer__tagline {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
}

.footer__links h5 {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  margin-bottom: 16px;
}

.footer__links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__links a {
  font-size: 0.9375rem;
  color: var(--clr-text-muted);
  transition: color 0.2s;
}

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

.footer__bottom {
  border-top: 1px solid var(--clr-border);
  padding-top: 24px;
  text-align: center;
}

.footer__bottom p {
  font-family: var(--font-en);
  font-size: 0.8125rem;
  color: var(--clr-text-muted);
}

/* ============================================
   AOS ANIMATION STUB
   ============================================ */
[data-aos] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-aos="fade-left"] {
  transform: translateX(40px);
}

[data-aos="fade-right"] {
  transform: translateX(-40px);
}

[data-aos].aos-animate {
  opacity: 1;
  transform: none;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1100px) {
  .about__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  :root {
    --section-py: 80px;
  }

  .work__item,
  .work__item--right {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: 48px;
  }

  .work__phone-wrap {
    display: flex;
    justify-content: center;
  }

  .work__phone {
    width: 220px;
    height: 440px;
  }

  .timeline__line { display: none; }

  .timeline__item {
    grid-template-columns: auto 1fr;
    gap: 20px;
  }

  .timeline__item:nth-child(odd) .timeline__card,
  .timeline__item:nth-child(even) .timeline__card {
    grid-column: 2;
    text-align: left;
  }

  .footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .footer__brand {
    grid-column: 1 / -1;
  }

  .br-pc { display: inline; }
}

@media (max-width: 640px) {
  :root {
    --section-py: 64px;
    --container-px: 16px;
  }

  .nav__menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(7,10,18,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px 20px;
    gap: 4px;
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    border-bottom: 1px solid var(--clr-border);
  }

  .nav__menu.open {
    transform: translateY(0);
  }

  .nav__link {
    width: 100%;
    text-align: center;
    padding: 12px 16px;
  }

  .nav__hamburger {
    display: flex;
  }

  .hero__stats {
    flex-wrap: wrap;
    justify-content: center;
  }

  .stat__divider {
    display: none;
  }

  .stat {
    padding: 16px 24px;
  }

  .hero__actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .btn { width: 100%; justify-content: center; }

  .work__phone {
    width: 180px;
    height: 360px;
  }

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

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

  .footer__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer__brand {
    grid-column: auto;
  }
}