/* Korea Run Club — Site styles
   Base resets, design-system components (Button, Card, Badge, Checklist,
   Timeline, Field, Input, Select, MugunghwaMark) and page layout. */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 78px;
}

body {
  margin: 0;
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  line-height: var(--lh-heading);
  letter-spacing: var(--ls-heading);
  color: var(--text-primary);
  margin: 0;
  text-wrap: balance;
}

p { text-wrap: pretty; }

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-soft);
}
a:hover { color: var(--accent-deep); }

:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-sm);
}

@keyframes krcFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(7px); }
}

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

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

.overline {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-overline);
  text-transform: uppercase;
  color: var(--krc-pink);
}

.hangul {
  font-family: var(--font-hangul);
  color: var(--krc-petal);
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(var(--reveal-shift));
  transition: opacity var(--dur-reveal) var(--ease-out), transform var(--dur-reveal) var(--ease-out);
}
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ============ Button ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.01em;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition:
    transform var(--dur-fast) var(--ease-soft),
    box-shadow var(--dur-base) var(--ease-out),
    background var(--dur-base) var(--ease-soft),
    border-color var(--dur-base) var(--ease-soft),
    color var(--dur-base) var(--ease-soft);
}
.btn:active { transform: scale(0.98); }

.btn--sm { padding: 9px 16px;  font-size: 13px; }
.btn--md { padding: 13px 24px; font-size: 15px; }
.btn--lg { padding: 17px 34px; font-size: 16px; }
.btn--full { width: 100%; }

.btn--primary {
  background: var(--krc-gradient);
  color: #fff;
  box-shadow: 0 4px 18px rgba(236,74,134,0.28);
}
.btn--primary:hover {
  background: linear-gradient(135deg, #F15C93, #C42568);
  color: #fff;
  box-shadow: 0 10px 34px rgba(236,74,134,0.45);
}

.btn--secondary {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.btn--secondary:hover {
  color: var(--krc-pink);
  border-color: var(--krc-pink);
}

/* ============ Card ============ */
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition:
    transform var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-soft);
}
.card--hover:hover {
  border-color: var(--border-strong);
  box-shadow: var(--lift-hover);
  transform: translateY(-4px);
}

.card__icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(236,74,134,0.10);
  border: 1px solid rgba(236,74,134,0.22);
  color: var(--krc-pink);
  margin-bottom: 20px;
}
.card__icon--sm {
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
}

/* ============ Badge ============ */
.badge--soft {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  background: rgba(236,74,134,0.12);
  color: var(--krc-pink);
  border: 1px solid rgba(236,74,134,0.28);
}

/* ============ Mugunghwa mark ============ */
.mark { display: block; }

/* ============ Checklist ============ */
.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-4);
}
.checklist li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
}
.checklist .mark { margin-top: 2px; flex-shrink: 0; }
.checklist span:last-child {
  font-size: 16px;
  color: var(--text-primary);
  line-height: 1.5;
}

/* ============ Timeline ============ */
.timeline { display: grid; gap: 0; }
.timeline__row {
  display: grid;
  grid-template-columns: auto 28px 1fr;
  gap: var(--space-4);
}
.timeline__time {
  font-family: var(--font-display);
  font-weight: var(--fw-semibold);
  font-size: 15px;
  color: var(--krc-pink);
  text-align: right;
  min-width: 56px;
  padding-top: 1px;
}
.timeline__spine {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.timeline__line {
  flex: 1;
  width: 1px;
  background: var(--border-strong);
  margin-top: 6px;
}
.timeline__body { padding-bottom: var(--space-6); }
.timeline__row:last-child .timeline__body { padding-bottom: 0; }
.timeline__title {
  font-family: var(--font-display);
  font-weight: var(--fw-semibold);
  font-size: 17px;
  color: var(--text-primary);
  margin-bottom: 4px;
}

/* ============ Forms ============ */
.field { display: grid; gap: 8px; }
.field > label {
  font-size: 12px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.field > label .req { color: var(--krc-pink); }

.input,
.select,
.textarea {
  width: 100%;
  padding: 13px 16px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text-primary);
  background: var(--bg-base);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--dur-fast) var(--ease-soft), box-shadow var(--dur-base) var(--ease-out);
}
.input:focus,
.select:focus,
.textarea:focus {
  border-color: var(--krc-pink);
  box-shadow: 0 0 0 3px rgba(249,201,222,0.18);
}
.input::placeholder,
.textarea::placeholder { color: var(--text-tertiary); }

.textarea { resize: vertical; min-height: 110px; }

.select-wrap { position: relative; }
.select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 44px;
  cursor: pointer;
}
.select-wrap::after {
  content: "\25BE";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--krc-pink);
  font-size: 12px;
}

/* ============ Nav ============ */
.nav {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(11,11,13,0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-hairline);
}
.nav__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px var(--gutter);
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.nav__brand img { height: 28px; width: auto; display: block; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav__anchors { display: flex; gap: 32px; }
.nav__anchors a {
  font-size: 14px;
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  transition: color var(--dur-fast) var(--ease-soft);
}
.nav__anchors a:hover,
.nav__anchors a.is-active { color: var(--krc-pink); }

.nav__burger {
  display: none;
  place-items: center;
  width: 42px;
  height: 42px;
  background: transparent;
  border: 1px solid var(--border-hairline);
  border-radius: 10px;
  color: var(--text-primary);
  cursor: pointer;
}

.nav__mobile {
  display: none;
  border-top: 1px solid var(--border-hairline);
  padding: 8px var(--gutter) 20px;
  flex-direction: column;
  gap: 4px;
  background: rgba(11,11,13,0.96);
}
.nav__mobile a:not(.btn) {
  padding: 12px 0;
  font-size: 16px;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-hairline);
}
.nav__mobile a:last-of-type:not(.btn) { border-bottom: none; padding-bottom: 16px; }
.nav__mobile .btn { margin-top: 4px; }

@media (max-width: 820px) {
  .nav__links { display: none; }
  .nav__burger { display: grid; }
  .nav__mobile.is-open { display: flex; }
}

/* ============ Hero ============ */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: -12% 0;
  width: 100%;
  height: 124%;
  object-fit: cover;
  object-position: center 30%;
  filter: var(--krc-photo-filter);
  transform: scale(1.1);
  will-change: transform;
}
.hero__scrim-full { position: absolute; inset: 0; background: var(--krc-overlay-full); }
.hero__scrim-pink { position: absolute; inset: 0; background: var(--krc-overlay-pink); }

.hero__content {
  position: relative;
  max-width: var(--container-max);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--gutter) clamp(80px, 12vh, 140px);
}
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 26px;
}
.hero__eyebrow span {
  font-family: var(--font-hangul);
  color: var(--krc-petal);
  font-size: 15px;
  letter-spacing: 0.1em;
}
.hero h1 {
  font-size: var(--fs-display);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-display);
  max-width: 16ch;
}
.hero__sub {
  margin: 26px 0 0;
  max-width: 44ch;
  font-size: var(--fs-body-lg);
  line-height: 1.6;
  color: var(--text-secondary);
}
.hero__ctas {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-tertiary);
}
.hero__scroll span {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.hero__scroll svg { animation: krcFloat 2.4s var(--ease-soft) infinite; }
@media (prefers-reduced-motion: reduce) {
  .hero__scroll svg { animation: none; }
}

/* ============ Sections ============ */
.section { padding: var(--section-y) var(--gutter); }
.section--flush-top { padding-top: 0; }

.section-head { max-width: var(--reading-max); }
.section-head h2 {
  font-size: var(--fs-h2);
  margin: 18px 0 0;
}
.section-head .lede {
  margin: 14px 0 0;
  font-size: var(--fs-body-lg);
  color: var(--text-secondary);
}

/* Perché */
.why-grid {
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(268px, 1fr));
  gap: 20px;
}
.why-grid h3 {
  font-weight: var(--fw-semibold);
  font-size: 20px;
  margin: 0 0 8px;
}
.why-grid p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
}

/* Chi siamo */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.about-grid h2 { font-size: var(--fs-h2); margin: 18px 0 24px; }
.about-grid .lede {
  font-size: var(--fs-body-lg);
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0;
  max-width: 52ch;
}
.about-photo {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-hairline);
}
.about-photo__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: var(--krc-photo-filter);
}
.about-photo__scrim { position: absolute; inset: 0; background: var(--krc-overlay-bottom); }
.about-photo__label {
  position: absolute;
  left: 20px;
  bottom: 18px;
  font-family: var(--font-hangul);
  color: var(--krc-petal);
  font-size: 14px;
  letter-spacing: 0.08em;
}

/* Cosa vivrai */
.vivrai {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border-hairline);
  border-bottom: 1px solid var(--border-hairline);
}
/* 7 cards: 4 in the first row, 3 centred below on desktop;
   2 per row on tablet, stacked on mobile. */
.vivrai-grid {
  margin-top: 48px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
}
.vivrai-grid .card {
  background: var(--bg-base);
  flex: 0 1 calc(25% - 14px);
  min-width: 232px;
}
@media (max-width: 1080px) {
  .vivrai-grid .card { flex-basis: calc(50% - 9px); }
}
@media (max-width: 540px) {
  .vivrai-grid .card { flex-basis: 100%; }
}
.vivrai-grid h3 {
  font-weight: var(--fw-semibold);
  font-size: 18px;
  margin: 0 0 6px;
}
.vivrai-grid p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
}

/* Giornata tipo */
.day-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: clamp(32px, 5vw, 80px);
}
.day-grid h2 { font-size: var(--fs-h2); margin: 18px 0 20px; }
.day-grid .lede {
  font-size: var(--fs-body-lg);
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0;
  max-width: 44ch;
}

/* Tour */
.tour-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.tour-card {
  height: 100%;
  display: flex;
  flex-direction: column;
}
.tour-card__meta {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 10px;
}
.tour-card__meta .hangul { font-size: 15px; }
.tour-card h3 {
  font-size: 26px;
  line-height: 1.15;
  margin: 0 0 14px;
}
.tour-card__badge { margin-bottom: 18px; }
.tour-card__desc {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.6;
  margin: 0 0 22px;
}
.tour-card__rule {
  height: 1px;
  background: var(--border-hairline);
  margin: 0 0 22px;
}
.tour-card__spacer { flex: 1; }
.tour-card__cta { margin-top: 26px; }

/* Atmosfera / Cibo — uniform portrait tiles, 5 per row on desktop */
.atmo-grid {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}
.atmo-tile {
  position: relative;
  aspect-ratio: 5 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-hairline);
}
@media (max-width: 1080px) {
  .atmo-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 640px) {
  .atmo-grid { grid-template-columns: repeat(2, 1fr); }
}
.atmo-tile__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: var(--krc-photo-filter);
}
.atmo-tile__scrim { position: absolute; inset: 0; background: var(--krc-overlay-bottom); }
.atmo-tile__label {
  position: absolute;
  left: 16px;
  bottom: 14px;
  font-family: var(--font-hangul);
  color: var(--krc-petal);
  font-size: 13px;
}

/* CTA */
.cta {
  position: relative;
  overflow: hidden;
}
.cta__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(80% 130% at 50% 0%, rgba(236,74,134,0.38) 0%, rgba(236,74,134,0) 58%),
    linear-gradient(160deg, #4a0f27 0%, #1c0a12 55%, #0b0b0d 100%);
}
.cta__content {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}
.cta h2 {
  font-size: var(--fs-h1);
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0;
}
.cta p {
  margin: 22px auto 0;
  max-width: 56ch;
  font-size: var(--fs-body-lg);
  line-height: 1.7;
  color: var(--krc-petal);
}
.cta__btn {
  margin-top: 34px;
  display: flex;
  justify-content: center;
}

/* Form */
.contact { border-top: 1px solid var(--border-hairline); }
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: clamp(32px, 5vw, 72px);
}
.contact-grid h2 { font-size: var(--fs-h2); margin: 18px 0 20px; }
.contact-grid .lede {
  font-size: var(--fs-body-lg);
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0 0 28px;
  max-width: 44ch;
}
.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-size: 15px;
}
.contact-email:hover { color: var(--krc-pink); }

.form-card { padding: clamp(24px, 4vw, 40px); }
.lead-form { display: grid; gap: 20px; }
.lead-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 480px) {
  .lead-form__row { grid-template-columns: 1fr; }
}
.lead-form__rule {
  height: 1px;
  background: var(--border-hairline);
  margin: 4px 0;
}
.lead-form__about h3 {
  font-weight: var(--fw-semibold);
  font-size: 18px;
  margin: 0 0 4px;
}
.lead-form__about > p {
  color: var(--text-secondary);
  font-size: 14px;
  margin: 0 0 18px;
}
.lead-form__about-fields { display: grid; gap: 16px; }

.consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  cursor: pointer;
}
.consent input {
  margin-top: 2px;
  width: 16px;
  height: 16px;
  accent-color: var(--krc-pink);
  flex-shrink: 0;
}

.form-success {
  display: none;
  text-align: center;
  padding: 32px 8px;
  justify-items: center;
  gap: 20px;
}
.form-success.is-visible { display: grid; }
.form-success h3 { font-size: 26px; margin: 0; }
.form-success p {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.6;
  margin: 0;
  max-width: 42ch;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-hairline);
  padding: 56px var(--gutter);
  position: relative;
  overflow: hidden;
}
.footer__watermark {
  position: absolute;
  right: -40px;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.05;
  pointer-events: none;
}
.footer__row {
  position: relative;
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.footer__brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.footer__brand img { height: 30px; width: auto; display: block; }
.footer__links {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}
.footer__links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 14px;
}
.footer__links a:hover { color: var(--krc-pink); }
.footer__legal {
  position: relative;
  max-width: var(--container-max);
  margin: 28px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--border-hairline);
  color: var(--text-tertiary);
  font-size: 13px;
}