/* ============================================
   BUSHIDORO — Cyber-Samurai Landing Page
   Design: Dark Mode · Crimson Accents · Sharp
   ============================================ */

/* ─── TOKENS ─── */
:root {
  --clr-bg:        #0a0a0b;
  --clr-surface:   #111114;
  --clr-surface-2: #18181d;
  --clr-border:    rgba(255, 255, 255, 0.06);
  --clr-border-2:  rgba(255, 255, 255, 0.12);

  --clr-text:      #f0f0f2;
  --clr-text-dim:  rgba(240, 240, 242, 0.55);
  --clr-text-muted:rgba(240, 240, 242, 0.3);

  --clr-accent:    #ff2222;
  --clr-accent-lo: rgba(255, 34, 34, 0.15);
  --clr-accent-md: rgba(255, 34, 34, 0.35);
  --clr-accent-glow: rgba(255, 34, 34, 0.6);

  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --container: 1180px;
  --section-py: clamp(80px, 10vw, 140px);

  --ease-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-back: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ─── 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);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ─── CONTAINER ─── */
.container {
  width: min(var(--container), 100% - 2rem);
  margin-inline: auto;
}

/* ─── SECTIONS ─── */
.section { padding-block: var(--section-py); }
.section--tight { padding-block: clamp(40px, 5vw, 64px); }

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1.5px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.25s var(--ease-expo);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.06) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.25s;
}

.btn:hover::after { opacity: 1; }

.btn--sm  { padding: 10px 20px; font-size: 0.8rem; }
.btn--lg  { padding: 16px 36px; font-size: 0.95rem; }
.btn--xl  { padding: 20px 48px; font-size: 1rem; }

.btn--primary {
  background: var(--clr-accent);
  color: #fff;
  border-color: var(--clr-accent);
}

.btn--primary:hover {
  background: #ff0000;
  border-color: #ff0000;
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(255, 34, 34, 0.4);
}

.btn--primary:active { transform: translateY(0); }

.btn--ghost {
  background: transparent;
  color: var(--clr-text);
  border-color: var(--clr-border-2);
}

.btn--ghost:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
}

.btn--glow {
  box-shadow: 0 0 24px rgba(255, 34, 34, 0.35),
              0 0 80px rgba(255, 34, 34, 0.12);
}

.btn--glow:hover {
  box-shadow: 0 0 40px rgba(255, 34, 34, 0.6),
              0 0 120px rgba(255, 34, 34, 0.25);
}

.btn__icon {
  width: 18px;
  height: 18px;
  transition: transform 0.25s var(--ease-expo);
  flex-shrink: 0;
}

.btn:hover .btn__icon { transform: translateX(4px); }

/* ─── ACCENT ─── */
.accent { color: var(--clr-accent); }

/* ─── REVEAL ANIMATIONS ─── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s var(--ease-expo), transform 0.8s var(--ease-expo);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── NAV ─── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 0;
  border-bottom: 1px solid transparent;
  transition: background 0.4s, border-color 0.4s, padding 0.4s;
}

.nav.scrolled {
  background: rgba(10, 10, 11, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-color: var(--clr-border);
  padding: 14px 0;
}

.nav__inner {
  width: min(var(--container), 100% - 2rem);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 1.05rem;
  letter-spacing: 0.12em;
  color: var(--clr-text);
  transition: color 0.2s;
}

.nav__logo:hover { color: var(--clr-accent); }

.nav__logo-mark {
  font-size: 1.5rem;
  color: var(--clr-accent);
  line-height: 1;
  text-shadow: 0 0 20px var(--clr-accent-glow);
}

/* ─── HERO ─── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-block: 120px 80px;
  overflow: hidden;
}

/* Background image overlay */
.hero__bg {
  position: absolute;
  inset: 0;
  background-image: url('assets/samurai-bg.jpg');
  background-size: cover;
  background-position: center 20%;
  opacity: 0.35;
  mix-blend-mode: luminosity;
  mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
}

/* Grid bg */
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, black 30%, transparent 80%);
  z-index: 1;
}

/* Glowing orb */
.hero__orb {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(255, 34, 34, 0.12) 0%, transparent 70%);
  pointer-events: none;
  animation: orb-pulse 6s ease-in-out infinite;
}

@keyframes orb-pulse {
  0%, 100% { opacity: 0.6; transform: translateX(-50%) scale(1); }
  50%       { opacity: 1;   transform: translateX(-50%) scale(1.1); }
}

.hero__content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 28px;
}

.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--clr-accent);
}

.eyebrow-line {
  width: 40px;
  height: 1px;
  background: var(--clr-accent);
  opacity: 0.6;
  flex-shrink: 0;
}

.hero__title {
  font-size: clamp(3rem, 8vw, 7.5rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.03em;
  max-width: 900px;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--clr-text-dim);
  max-width: 600px;
  font-weight: 400;
  line-height: 1.7;
}

.hero__cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

/* ─── TIMER MOCKUP ─── */
.hero__mockup {
  width: 100%;
  max-width: 480px;
  margin-top: 24px;
}

.mockup {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-2);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.04),
    0 40px 100px rgba(0,0,0,0.6),
    0 0 60px rgba(255, 34, 34, 0.08);
}

.mockup__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  background: var(--clr-surface-2);
  border-bottom: 1px solid var(--clr-border);
}

.mockup__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.mockup__dot--red    { background: #ff5f57; }
.mockup__dot--yellow { background: #ffbd2e; }
.mockup__dot--green  { background: #28ca41; }

.mockup__title {
  flex: 1;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--clr-text-dim);
  letter-spacing: 0.1em;
}

.mockup__body {
  padding: 32px 28px 36px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.phase-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--clr-accent);
  background: var(--clr-accent-lo);
  border: 1px solid var(--clr-accent-md);
  padding: 5px 14px;
  border-radius: 2px;
}

/* Timer ring */
.mockup__timer {
  position: relative;
  width: 180px;
  height: 180px;
}

.timer-ring {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.timer-ring__bg {
  fill: none;
  stroke: var(--clr-surface-2);
  stroke-width: 6;
}

.timer-ring__progress {
  fill: none;
  stroke: var(--clr-accent);
  stroke-width: 6;
  stroke-linecap: round;
  stroke-dasharray: 553;
  stroke-dashoffset: 92; /* ~24:37 of 25min */
  filter: drop-shadow(0 0 6px rgba(255,34,34,0.8));
  transition: stroke-dashoffset 1s linear;
}

.timer-display {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.timer-display__time {
  font-family: var(--font-mono);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--clr-text);
  line-height: 1;
  letter-spacing: -0.02em;
}

.timer-display__label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.25em;
  color: var(--clr-accent);
  font-weight: 700;
}

.mockup__task {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  width: 100%;
  padding: 14px 18px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
}

.task-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--clr-text-muted);
  text-transform: uppercase;
}

.task-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--clr-text);
  text-align: center;
}

/* Decorative katana */
.mockup__katana {
  width: 100%;
  display: flex;
  justify-content: center;
  opacity: 0.25;
}

.katana {
  display: flex;
  align-items: center;
  gap: 0;
}

.katana__blade {
  width: 120px;
  height: 2px;
  background: linear-gradient(90deg, var(--clr-accent) 0%, rgba(255,255,255,0.6) 60%, transparent 100%);
  border-radius: 0 1px 1px 0;
}

.katana__guard {
  width: 4px;
  height: 14px;
  background: var(--clr-text-dim);
  border-radius: 2px;
  flex-shrink: 0;
}

.katana__handle {
  width: 40px;
  height: 4px;
  background: repeating-linear-gradient(90deg, var(--clr-text-dim) 0, var(--clr-text-dim) 4px, transparent 4px, transparent 8px);
  border-radius: 2px;
}

/* ─── SCROLL HINT ─── */
.scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  z-index: 2;
  animation: fade-bounce 2s ease-in-out infinite;
}

.scroll-hint__text {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  color: var(--clr-text-muted);
}

.scroll-hint__line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--clr-text-muted), transparent);
}

@keyframes fade-bounce {
  0%, 100% { opacity: 0.5; transform: translateX(-50%) translateY(0); }
  50%       { opacity: 1;   transform: translateX(-50%) translateY(6px); }
}

/* ─── CODEX SECTION ─── */
.codex-header {
  text-align: center;
  margin-bottom: 64px;
}
.codex-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 24px;
}
.codex-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--clr-text-dim);
  font-style: italic;
  max-width: 700px;
  margin: 0 auto;
}

.codex-intro-box {
  background: rgba(17, 17, 20, 0.6);
  border: 1px solid var(--clr-border-2);
  border-left: 3px solid var(--clr-accent);
  padding: 40px;
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
  margin-bottom: 64px;
}

.codex-intro-box__content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.codex-intro-box__content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--clr-text);
}

.codex-intro-box__content p {
  color: var(--clr-text-dim);
  font-size: 1.05rem;
  line-height: 1.7;
}

.codex-intro-box__bg {
  position: absolute;
  right: -20px;
  bottom: -40px;
  font-size: 160px;
  font-weight: 900;
  color: rgba(255, 34, 34, 0.04);
  line-height: 1;
  pointer-events: none;
  z-index: 1;
}

.codex-grid-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}

.red-square {
  width: 12px;
  height: 12px;
  background: var(--clr-accent);
  box-shadow: 0 0 10px var(--clr-accent-glow);
}

.codex-grid-header h3 {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.codex-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}

.codex-card {
  background: rgba(17, 17, 20, 0.4);
  border: 1px solid var(--clr-border);
  padding: 32px 24px;
  border-radius: var(--radius-md);
  transition: transform 0.3s, border-color 0.3s;
}

.codex-card:hover {
  transform: translateY(-4px);
  border-color: var(--clr-border-2);
}

.codex-card__tag {
  color: var(--clr-accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}

.codex-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.3;
}

.codex-card__text {
  font-size: 0.95rem;
  color: var(--clr-text-dim);
  line-height: 1.6;
}

.codex-universality {
  background: rgba(17, 17, 20, 0.4);
  border: 1px solid var(--clr-border);
  padding: 32px;
  border-radius: var(--radius-md);
}

.codex-univ-title {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.codex-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.codex-tag {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--clr-border-2);
  padding: 10px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--clr-text-dim);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ─── SECTION HEADER ─── */
.section-header {
  margin-bottom: clamp(48px, 6vw, 80px);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--clr-accent);
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

/* ─── PHILOSOPHY CARDS ─── */
.philosophy__cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.phil-card {
  position: relative;
  padding: 44px 40px 48px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-2);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s var(--ease-expo);
}

.phil-card:hover {
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-6px);
}

.phil-card--accent {
  border-color: var(--clr-accent-md);
  background: linear-gradient(135deg, var(--clr-surface) 60%, rgba(255,34,34,0.04) 100%);
}

.phil-card--accent:hover {
  border-color: var(--clr-accent);
}

.phil-card__num {
  position: absolute;
  top: 28px;
  right: 32px;
  font-family: var(--font-mono);
  font-size: 4.5rem;
  font-weight: 900;
  color: rgba(255,255,255,0.03);
  line-height: 1;
  letter-spacing: -0.04em;
  pointer-events: none;
  user-select: none;
}

.phil-card__icon {
  font-size: 2.4rem;
  margin-bottom: 24px;
  display: block;
}

.phil-card__title {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.phil-card__text {
  font-size: 1rem;
  color: var(--clr-text-dim);
  line-height: 1.75;
  font-weight: 400;
}

.phil-card__line {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--clr-accent) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.3s;
}

.phil-card:hover .phil-card__line,
.phil-card--accent .phil-card__line { opacity: 1; }

/* ─── DIVIDER ─── */
.section-divider {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 min(calc(50% - var(--container)/2), 1rem);
  opacity: 0.3;
}

.divider-line {
  flex: 1;
  height: 1px;
  background: var(--clr-border-2);
}

.divider-kanji {
  font-size: 1.5rem;
  color: var(--clr-accent);
  font-weight: 900;
  text-shadow: 0 0 20px var(--clr-accent-glow);
  flex-shrink: 0;
}

/* ─── THE WAY ─── */
.way__callout {
  position: relative;
  text-align: center;
  font-size: clamp(1.2rem, 2.5vw, 1.9rem);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--clr-text);
  max-width: 820px;
  margin: 0 auto 72px;
  padding: 48px 64px;
  border: 1px solid var(--clr-border-2);
  border-radius: var(--radius-md);
  background: var(--clr-surface);
  border-left: 3px solid var(--clr-accent);
  border-right: none;
}

.way__callout-mark {
  position: absolute;
  font-size: 6rem;
  color: var(--clr-accent);
  opacity: 0.12;
  line-height: 1;
  font-family: Georgia, serif;
}

.way__callout-mark { top: 10px; left: 24px; }
.way__callout-mark--right { top: auto; bottom: 10px; left: auto; right: 24px; }

/* ─── PHASES ─── */
.phases {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 780px;
  margin-inline: auto;
}

.phase {
  display: grid;
  grid-template-columns: 64px 1fr 56px;
  gap: 28px;
  align-items: center;
  padding: 32px 0;
  border-bottom: 1px solid var(--clr-border);
  position: relative;
  transition: background 0.3s;
}

.phase:last-child { border-bottom: none; }

.phase:hover { background: rgba(255,255,255,0.01); }

.phase__connector {
  position: absolute;
  left: 28px;
  top: 0; bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, transparent 0%, var(--clr-border-2) 50%, transparent 100%);
}

.phase__num-wrap {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--clr-border-2);
  border-radius: var(--radius-sm);
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  background: var(--clr-surface);
  transition: border-color 0.3s;
}

.phase__num-wrap--accent {
  border-color: var(--clr-accent);
  background: var(--clr-accent-lo);
  box-shadow: 0 0 20px rgba(255,34,34,0.2);
}

.phase__num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--clr-text-dim);
  letter-spacing: 0.05em;
}

.phase__num-wrap--accent .phase__num { color: var(--clr-accent); }

.phase__content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.phase__tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  color: var(--clr-text-muted);
  text-transform: uppercase;
}

.phase__title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--clr-text);
}

.phase--active .phase__title { color: var(--clr-accent); }

.phase__subtitle {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--clr-text-muted);
  font-style: italic;
}

.phase__desc {
  margin-top: 8px;
  font-size: 0.9rem;
  color: var(--clr-text-dim);
  line-height: 1.7;
}

.phase__icon {
  width: 48px;
  height: 48px;
  color: var(--clr-text-muted);
  flex-shrink: 0;
  transition: color 0.3s;
}

.phase__icon--accent { color: var(--clr-accent); }
.phase:hover .phase__icon { color: var(--clr-text-dim); }

/* ─── STATS ─── */
.stats {
  border-top: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
  background: var(--clr-surface);
}

.stats__grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.stat__num {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1;
  color: var(--clr-accent);
  letter-spacing: -0.04em;
}

.stat__unit {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--clr-accent);
  opacity: 0.6;
}

.stat__label {
  width: 100%;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--clr-text-muted);
  text-transform: uppercase;
}

.stat-sep {
  font-size: 2rem;
  color: var(--clr-border-2);
  flex-shrink: 0;
}

/* ─── FINAL CTA ─── */
.cta-section {
  position: relative;
  overflow: hidden;
}

.cta-section__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 50% 100%, rgba(255,34,34,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.cta-box {
  position: relative;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  padding: 80px 40px;
  border: 1px solid var(--clr-border-2);
  border-radius: var(--radius-lg);
  background: var(--clr-surface);
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(255,34,34,0.04) 100%);
  pointer-events: none;
}

.cta-box__kanjis {
  display: flex;
  gap: 20px;
  font-size: 3.5rem;
  font-weight: 900;
  color: rgba(255,255,255,0.03);
  letter-spacing: 0.1em;
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  user-select: none;
}

.cta-box__title {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.cta-box__subtitle {
  font-size: 1.1rem;
  color: var(--clr-text-dim);
  max-width: 440px;
  font-weight: 400;
  line-height: 1.7;
}

.cta-box__note {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--clr-text-muted);
  letter-spacing: 0.1em;
}

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

.footer__inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.footer__left {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 24px;
}

.footer__copy {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
}

.footer__credit {
  font-size: 0.85rem;
  color: var(--clr-text-dim);
}

.footer__kanji {
  font-size: 1.1rem;
  font-weight: 900;
  color: rgba(255,255,255,0.04);
  letter-spacing: 0.1em;
  user-select: none;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
  .hero { min-height: auto; padding-block: 140px 100px; }
  .section-title { font-size: clamp(2rem, 5vw, 3.5rem); }
  .phase { grid-template-columns: 60px 80px 1fr 60px; }
  .hero__title { font-size: clamp(2.8rem, 6vw, 5rem); }
}

@media (max-width: 768px) {
  .hero__title { font-size: clamp(2.4rem, 8vw, 3.5rem); }
  .hero__subtitle { font-size: 1rem; padding: 0 16px; }
  .hero__mockup { max-width: 100%; margin-top: 40px; }
  .hero__cta { flex-direction: column; width: 100%; padding: 0 24px; align-items: stretch; }
  .hero__cta .btn { justify-content: center; width: 100%; }

  .codex-intro-box { padding: 32px 24px; }
  .codex-intro-box__bg { font-size: 100px; right: -10px; bottom: -20px; }
  .codex-title { font-size: clamp(1.8rem, 6vw, 2.5rem); margin-bottom: 16px; }
  .codex-subtitle { font-size: 1rem; padding: 0 16px; }
  .codex-card { padding: 24px 20px; }
  .codex-universality { padding: 24px; }
  
  .phil-card { padding: 32px 24px; }
  
  .way__callout { padding: 24px 20px; font-size: 1.1rem; }
  .way__callout-mark { font-size: 3rem; top: -10px; left: 10px; }
  .way__callout-mark--right { bottom: -30px; right: 10px; }

  .phase {
    grid-template-columns: 40px 1fr;
    grid-template-rows: auto auto;
    gap: 16px;
    padding-bottom: 32px;
  }
  .phase__icon { display: none; }
  .phase__num-wrap { width: 40px; height: 40px; }
  .phase__num { font-size: 0.75rem; }
  .phase__connector { left: 19px; }

  .stats__grid { gap: 24px; flex-direction: column; }
  .stat-sep { display: none; }

  .footer__inner { flex-direction: column; text-align: center; align-items: center; gap: 32px; }
  .footer__left, .footer__right { align-items: center; }
  .footer__kanji { display: none; }

  .cta-box { padding: 48px 20px; border-radius: var(--radius-md); }
  .cta-box__title { font-size: clamp(2rem, 7vw, 3rem); }
  .cta-box__kanjis { font-size: 2.5rem; }
}

@media (max-width: 480px) {
  .nav__inner { padding: 0 8px; }
  .nav__logo-mark { font-size: 1.25rem; }
  .nav .btn { display: none; } /* Hide join btn in nav on very small screens to save space */
  
  .hero__title { font-size: clamp(2rem, 10vw, 2.5rem); }
  .hero__eyebrow { font-size: 0.6rem; letter-spacing: 0.15em; }
  
  .mockup__timer { width: 140px; height: 140px; }
  .timer-display__time { font-size: 2rem; }
  .timer-ring__progress { stroke-width: 5; }
  .timer-ring__bg { stroke-width: 5; }
  
  .codex-tags { justify-content: center; }
  .codex-tag { width: 100%; justify-content: center; font-size: 0.85rem; }
  
  .modal__header { padding: 20px 24px; }
  .modal__title { font-size: 1.2rem; }
  .music-toggle { right: 24px; top: 20px; width: 32px; height: 32px; }
  .modal__close { right: 24px; top: 20px; width: 32px; height: 32px; }
  
  .sprint-ring-wrap { width: 160px; height: 160px; }
  .sprint-time-display { font-size: 2.5rem; }
  .sprint-task-display__name { font-size: 0.85rem; }
  
  .result-num { font-size: 3rem; }
  .result-title { font-size: 1.5rem; }
}

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--clr-bg); }
::-webkit-scrollbar-thumb {
  background: var(--clr-accent);
  border-radius: 3px;
  opacity: 0.5;
}