/* ==========================================================
   P2T Inc. — Official Website
   Quiet confidence. Clear structure. Deliberate motion.
========================================================== */

/* ==========================================================
   1. Design tokens
========================================================== */

:root {
  --color-bg: #ffffff;
  --color-text: #111111;
  --color-text-soft: #4b4b4b;
  --color-text-muted: #777777;
  --color-line: rgba(17, 17, 17, 0.16);
  
  --font-sans: Inter, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-ja: "Hiragino Sans", "Yu Gothic", YuGothic, Meiryo, sans-serif;

  --weight-light: 300;
  --weight-regular: 400;
  --weight-medium: 500;

  --size-hero: clamp(2.75rem, 5.8vw, 4.75rem);
  --size-heading: clamp(1.8rem, 3vw, 2.65rem);
  --size-philosophy: clamp(1.08rem, 1.45vw, 1.28rem);
  --size-body: clamp(1rem, 1.15vw, 1.12rem);
  --size-small: 0.86rem;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;
  --space-7: 6rem;
  --space-8: 8rem;
  --space-9: 10rem;
  --space-10: 12rem;

  --container: 68rem;
  --reading: 45rem;
  --closing-width: 40rem;
  --hero-content-gap: 3rem;
  --flow-space: 6rem;
  --pause-space: 12rem;

  --duration-fast: 320ms;
  --duration-base: 820ms;
  --duration-slow: 680ms;
  --ease-standard: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-soft: cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* ==========================================================
   2. Reset
========================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body,
h1,
h2,
p,
blockquote,
ul {
  margin: 0;
}

ul {
  padding: 0;
  list-style: none;
}

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

address {
  font-style: normal;
}

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

/* ==========================================================
   3. Base
========================================================== */

html {
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 16px;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--color-bg);
  font-family: var(--font-sans);
  font-weight: var(--weight-light);
  line-height: 1.85;
  letter-spacing: 0.018em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--color-text);
  color: var(--color-bg);
}

main {
  position: relative;
}

section {
  position: relative;
}

.container {
  width: min(calc(100% - 4rem), var(--container));
  margin-inline: auto;
}

h1,
h2 {
  font-weight: var(--weight-light);
  line-height: 1.2;
  letter-spacing: -0.03em;
}

p,
li,
a {
  font-size: var(--size-body);
}

a {
  position: relative;
  transition: opacity var(--duration-fast) ease;
}

a:hover {
  opacity: 0.58;
}

a:focus-visible {
  outline: 1px solid var(--color-text);
  outline-offset: 0.45rem;
}

/* ==========================================================
   4. Hero
========================================================== */

.hero {
  min-height: 100svh;
  overflow: hidden;
  background: var(--color-bg);
}

.hero__inner {
  position: relative;
  display: grid;
  min-height: 100svh;
  width: min(calc(100% - 4rem), var(--container));
  margin-inline: auto;
  grid-template-rows:
    minmax(6rem, 1.18fr)
    auto
    auto
    minmax(6rem, 0.82fr);
  row-gap: var(--hero-content-gap);
  justify-items: center;
  align-items: center;
}

.hero__logo {
  grid-row: 2;
  width: min(40vw, 24rem);
  color: var(--color-text);
}

.hero__logo-mark,
.hero__logo svg {
  display: block;
  width: 100%;
  height: auto;
}

.hero__logo-mark {
  opacity: 1;
}

.hero__title {
  display: flex;
  flex-direction: column;
  align-items: center;
  grid-row: 3;
  gap: 0.1em;
  margin-top: 0;
  font-size: var(--size-hero);
  text-align: center;
  line-height: 1.16;
  letter-spacing: -0.045em;
  opacity: 1;
  transform: translateY(0);
}

.js .hero__title {
  opacity: 0;
  transform: translateY(0.25rem);
}

.hero__title.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity var(--duration-slow) var(--ease-standard),
    transform var(--duration-slow) var(--ease-standard);
}

.scroll-indicator {
  position: absolute;
  left: 50%;
  bottom: 2.5rem;
  width: 1px;
  height: 2.625rem;
  overflow: hidden;
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity var(--duration-slow) ease;
}

.scroll-indicator.is-visible {
  opacity: 1;
}

.scroll-indicator__line {
  display: block;
  width: 1px;
  height: 100%;
  background: rgba(17, 17, 17, 0.40);
  transform-origin: top;
  animation: indicator-breathe 2.8s ease-in-out infinite;
}

/* Inline SVG / assembled-logo states */
.js .hero__logo .logo-part,
.js .hero__logo [data-logo-part] {
  opacity: 0;
}

.js .hero__logo svg.is-motion-ready .logo-part,
.js .hero__logo svg.is-motion-ready [data-logo-part] {
  opacity: 1;
}

.js .hero__logo .logo-motion-part {
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center;
  will-change: transform, opacity;
}

.js .hero__logo .logo-motion-part.is-settled {
  opacity: 1;
  transform: translate(0, 0);
  will-change: auto;
}

/* ==========================================================
   5. Approach
========================================================== */

.approach {
  display: flex;
  align-items: center;
  padding-block: var(--space-9) var(--flow-space);
}

.approach__content {
  max-width: var(--reading);
}

.approach h2 {
  max-width: 24ch;
  margin-bottom: var(--space-6);
  font-size: var(--size-heading);
  line-height: 1.4;
}

.approach p {
  max-width: var(--reading);
  color: var(--color-text-soft);
}

.approach p + p {
  margin-top: var(--space-5);
}

/* ==========================================================
   6. Philosophy
========================================================== */

.philosophy {
  display: flex;
  align-items: center;
  padding-block: var(--flow-space);
}

.philosophy__quote {
  position: relative;
  max-width: var(--reading);
  font-family: var(--font-ja);
}

.philosophy__quote p {
  position: relative;
  z-index: 1;
  font-size: var(--size-philosophy);
  font-weight: var(--weight-medium);
  line-height: 2.05;
  letter-spacing: 0.025em;
}

.philosophy__quote p + p {
  margin-top: var(--space-6);
}

/* ==========================================================
   7. Information
========================================================== */

.information {
  display: flex;
  align-items: center;
  padding-block: var(--flow-space) var(--pause-space);
}

.information__content {
  max-width: var(--reading);
}

.information h2 {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: var(--weight-medium);
}

.information__since {
  margin-top: var(--space-5);
  color: var(--color-text-muted);
  font-size: var(--size-small);
  font-weight: var(--weight-regular);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.information__services {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-7);
}

.information__services li {
  position: relative;
  padding-left: 1.15rem;
  color: var(--color-text-soft);
}

.information__services li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.95em;
  width: 0.55rem;
  height: 1px;
  background: currentColor;
  opacity: 0.46;
  transform: translateY(-50%);
}

.information__address {
  margin-top: var(--space-8);
  color: var(--color-text-muted);
}

.information__address p {
  font-size: var(--size-body);
}


.closing__links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.35rem;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--duration-fast) var(--ease-standard);
}

.closing__links a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* ==========================================================
   8. Closing
========================================================== */

.closing {
  display: flex;
  min-height: 64svh;
  align-items: center;
  padding-block: var(--pause-space) var(--space-9);
}

.closing__content {
  width: 100%;
  max-width: var(--closing-width);
  margin-inline: auto;
  text-align: center;
}

.closing h2 {
  font-size: clamp(2.5rem, 5vw, 4rem);
}

.closing__links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

/* ==========================================================
   9. Footer
========================================================== */

.footer {
  padding: var(--space-6) 2rem var(--space-5);
  text-align: center;
}

.footer small {
  color: var(--color-text-muted);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
}

/* ==========================================================
   10. Reveal motion
========================================================== */

.fade {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity var(--duration-base) var(--ease-standard),
    transform var(--duration-base) var(--ease-standard);
}

.js .fade {
  opacity: 0;
  transform: translateY(1rem);
}

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

@keyframes indicator-breathe {
  0%,
  100% {
    opacity: 0.82;
    transform: translateY(0);
  }

  50% {
    opacity: 0.42;
    transform: translateY(0.2rem);
  }
}

/* ==========================================================
   11. Responsive
========================================================== */

@media (max-width: 62rem) {
  :root {
    --space-9: 8rem;
    --space-10: 9rem;
  }

  .hero__logo {
    width: min(52vw, 22rem);
  }

}

@media (max-width: 48rem) {
  :root {
    --size-body: 1rem;
    --space-7: 4.5rem;
    --space-8: 6rem;
    --space-9: 7rem;
    --space-10: 8rem;
  }

  .container,
  .hero__inner {
    width: min(calc(100% - 2.5rem), var(--container));
  }

  .hero__inner {
    grid-template-rows:
      minmax(5rem, 1.12fr)
      auto
      auto
      minmax(5rem, 0.88fr);
    row-gap: var(--space-5);
  }

  .hero__logo {
    width: min(72vw, 20rem);
  }

  .hero__title {
    font-size: clamp(2.45rem, 11vw, 3.7rem);
    line-height: 1.18;
  }

  .scroll-indicator {
    bottom: 1.75rem;
    height: 2.625rem;
  }

  .approach,
  .philosophy,
  .information,
 .closing {
    min-height: auto;
  }

  .approach,
 .information {
    padding-block: var(--space-9);
  }

 .philosophy {
    padding-block: var(--space-10);
  }


  .philosophy__quote p {
    line-height: 1.95;
  }

  .break--desktop {
    display: none;
  }
}

@media (max-width: 30rem) {
  .container,
  .hero__inner {
    width: calc(100% - 2rem);
  }

  .hero__logo {
    width: min(78vw, 18rem);
  }

  .hero__title {
    font-size: clamp(2.2rem, 11.5vw, 3rem);
  }

  .approach h2 {
    font-size: 1.65rem;
  }

  .philosophy__quote p {
    font-size: 1.08rem;
  }

  .information__services {
    gap: 0.75rem;
  }
}

/* ==========================================================
   12. Reduced motion / print
========================================================== */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .hero__title,
  .scroll-indicator,
  .fade,
  .js .hero__logo .logo-part,
  .js .hero__logo [data-logo-part],
  .js .hero__logo .logo-motion-part {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .scroll-indicator {
    display: none;
  }

  body {
    color: #000;
    background: #fff;
  }

  .fade,
  .hero__title {
    opacity: 1;
    transform: none;
  }
}