/* ==========================================
   arcas（アーカス）ネイルサロン 1枚もの（ver1.0 2026/10/25）
   構成：Foundation → Layout → Component → Project → Utility
   ========================================== */

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

html,
body,
h1,
h2,
h3,
p,
ul,
dl,
dd {
  margin: 0;
  padding: 0;
}

ul {
  list-style: none;
}

a {
  color: inherit;
}

/* Foundation: base */
:root {
  --color-text: #4a4344;
  --color-accent: #9a5a63;      /* くすみローズ：白地の文字 5.6:1 */
  --color-accent-light: #f6eeee;
  --color-bg: #fbf8f6;
  --color-line: #e6dad8;
  --white: #ffffff;

  --ff-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  --ff-serif: "Noto Serif JP", "Hiragino Mincho ProN", serif;
  --ff-en: "Cormorant Garamond", "Times New Roman", serif;

  --padding-side: clamp(20px, 4vw, 40px);
  --space-section: clamp(64px, 9vw, 112px);
  --space-heading: clamp(28px, 4vw, 40px);
  --space-element: clamp(16px, 2.5vw, 24px);
  --inner: 960px;
  --inner-narrow: 680px;
}

body {
  min-height: 100vh;
  min-height: 100svh;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--ff-sans);
  font-size: 1rem;
  line-height: 1.9;
  letter-spacing: 0.06em;
  font-feature-settings: "palt" 1;
  -webkit-font-smoothing: antialiased;
}

/* Layout */
.l-inner {
  width: 100%;
  max-width: calc(var(--inner) + var(--padding-side) * 2);
  margin-inline: auto;
  padding-inline: var(--padding-side);
}

.l-inner--narrow {
  max-width: calc(var(--inner-narrow) + var(--padding-side) * 2);
}

.l-section {
  padding-block: var(--space-section);
}

/* Component */
.c-label {
  color: var(--color-accent);
  font-family: var(--ff-en);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-align: center;
}

.c-title {
  margin-top: 4px;
  font-family: var(--ff-serif);
  font-size: clamp(1.5rem, 3.2vw, 1.875rem);
  font-weight: 500;
  letter-spacing: 0.12em;
  line-height: 1.5;
  text-align: center;
}

.c-link {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 0.25em;
  transition: opacity 0.3s;
}

@media (hover: hover) {
  .c-link:hover {
    opacity: 0.7;
  }
}

/* Project: header */
.p-header {
  padding: 28px var(--padding-side) 20px;
  background-color: var(--white);
  text-align: center;
}

.p-header__logo {
  color: var(--color-accent);
  font-family: var(--ff-en);
  font-size: clamp(2.25rem, 6vw, 3rem);
  font-weight: 500;
  letter-spacing: 0.16em;
  line-height: 1;
}

.p-header__sub {
  margin-top: 6px;
  font-family: var(--ff-en);
  font-size: 0.9375rem;
  letter-spacing: 0.3em;
}

/* Project: hero */
.p-hero {
  padding-block: clamp(72px, 12vw, 140px);
  background: linear-gradient(180deg, var(--color-accent-light) 0%, var(--color-bg) 100%);
  text-align: center;
}

.p-hero__label {
  color: var(--color-accent);
  font-size: 0.9375rem;
  letter-spacing: 0.2em;
}

.p-hero__title {
  margin-top: 16px;
  font-family: var(--ff-serif);
  font-size: clamp(1.625rem, 4.4vw, 2.5rem);
  font-weight: 500;
  letter-spacing: 0.12em;
  line-height: 1.6;
}

.p-hero__text {
  margin-top: 20px;
  font-size: 1rem;
  letter-spacing: 0.16em;
}

/* Project: about */
.p-about {
  background-color: var(--white);
}

.p-about__body {
  margin-top: var(--space-heading);
}

.p-about__body p + p {
  margin-top: var(--space-element);
}

/* Project: menu */
.p-menu__card {
  margin-top: var(--space-heading);
  padding: clamp(28px, 4vw, 40px);
  border: 1px solid var(--color-line);
  border-radius: 12px;
  background-color: var(--white);
  text-align: center;
}

.p-menu__name {
  font-family: var(--ff-serif);
  font-size: 1.375rem;
  font-weight: 500;
  letter-spacing: 0.16em;
}

.p-menu__note {
  margin-top: 12px;
  font-size: 0.9375rem;
}

/* Project: contact */
.p-contact {
  background-color: var(--white);
}

.p-contact__text {
  margin-top: var(--space-heading);
  text-align: center;
}

.p-contact__list {
  margin-top: var(--space-element);
  text-align: center;
}

.p-contact__key {
  margin-right: 1em;
  font-weight: 700;
}

.p-info {
  margin-top: var(--space-heading);
  border-top: 1px solid var(--color-line);
}

.p-info__row {
  display: grid;
  grid-template-columns: 7em 1fr;
  gap: 16px;
  padding-block: 16px;
  border-bottom: 1px solid var(--color-line);
}

.p-info__row dt {
  font-weight: 700;
}

@media (max-width: 767px) {
  .p-info__row {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

/* Project: footer */
.p-footer {
  padding: 24px var(--padding-side);
  background-color: var(--color-accent);
  color: var(--white);
  font-size: 0.8125rem;
  text-align: center;
}

/* Utility */
.u-sp-only {
  display: inline;
}

@media (min-width: 768px) {
  .u-sp-only {
    display: none;
  }
}