/* ─────────────────────────────────────────
   Design tokens
───────────────────────────────────────── */
:root {
  --nku-green:       #0f6a52;
  --nku-green-dark:  #0b4e3d;
  --nku-green-light: #3f9479;
  --nku-gold:        #c6a86f;
  --nku-gold-light:  #dfc08a;
  --bg:              #f5f1ea;
  --bg-card:         rgba(255, 252, 246, 0.92);
  --bg-card-solid:   #fffdf8;
  --text:            #14211d;
  --text-muted:      #56635e;
  --border:          rgba(20, 33, 29, 0.10);
  --serif:           "Noto Serif SC", serif;
  --sans:            "DM Sans", "PingFang SC", sans-serif;
  --shadow-soft:     0 12px 48px rgba(15, 106, 82, 0.10);
  --shadow-medium:   0 20px 64px rgba(7, 28, 23, 0.16);
  --shadow-strong:   0 28px 88px rgba(7, 28, 23, 0.22);
  --radius-card:     26px;
  --radius-sm:       14px;
}

/* ─────────────────────────────────────────
   Reset & base
───────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--sans);
  background: #f4f0e8;
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

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

code {
  padding: 0.12rem 0.4rem;
  border-radius: 999px;
  background: rgba(20, 33, 29, 0.08);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.88em;
}

button, input {
  font: inherit;
}

.serif {
  font-family: var(--serif);
}

/* ─────────────────────────────────────────
   Layout utilities
───────────────────────────────────────── */
.container {
  width: min(1140px, calc(100% - 44px));
  margin: 0 auto;
}

.section {
  padding: 96px 0;
}

/* ─────────────────────────────────────────
   Header
───────────────────────────────────────── */
.header {
  position: sticky;
  top: 0;
  z-index: 20;
  transition:
    background-color 0.30s ease,
    border-color 0.30s ease,
    box-shadow 0.30s ease,
    backdrop-filter 0.30s ease;
}

/* Faint top-shadow so nav text is legible over the photo */
.header--transparent {
  background: linear-gradient(
    180deg,
    rgba(4, 16, 12, 0.46) 0%,
    rgba(4, 16, 12, 0.18) 70%,
    transparent 100%
  );
}

.header.is-solid {
  background: rgba(250, 247, 240, 0.88);
  border-bottom: 1px solid rgba(20, 33, 29, 0.08);
  box-shadow: 0 2px 24px rgba(7, 28, 23, 0.08);
  backdrop-filter: blur(22px) saturate(1.4);
  -webkit-backdrop-filter: blur(22px) saturate(1.4);
}

/* Logo text & nav links — transparent (over dark photo) */
.header--transparent .header__logo-text,
.header--transparent .header__link {
  color: rgba(255, 250, 240, 0.96);
}

/* Logo SVG icon — invert to white over dark photo */
.header--transparent .header__logo-icon {
  filter: brightness(0) invert(1);
  opacity: 0.90;
}

/* Solid state — restore normal colours */
.header.is-solid .header__logo-text,
.header.is-solid .header__link {
  color: var(--text);
}

.header.is-solid .header__logo-icon {
  filter: none;
  opacity: 1;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
}

.header__logo {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 1.18rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.header__logo-icon {
  width: 30px;
  height: 30px;
  transition: filter 0.30s ease, opacity 0.30s ease;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.header__link {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.94rem;
  font-weight: 500;
  transition:
    background-color 0.18s ease,
    color 0.18s ease,
    opacity 0.18s ease;
}

.header--transparent .header__link:hover {
  background: rgba(255, 255, 255, 0.14);
}

.header.is-solid .header__link:hover {
  background: rgba(15, 106, 82, 0.08);
  color: var(--nku-green-dark);
}

/* CTA-style "加入" link */
.header__link--cta {
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.26);
  font-weight: 600;
}

.header--transparent .header__link--cta:hover {
  background: rgba(255, 255, 255, 0.22);
}

.header.is-solid .header__link--cta {
  background: var(--nku-green);
  border-color: transparent;
  color: #fff !important;
}

.header.is-solid .header__link--cta:hover {
  background: var(--nku-green-dark);
}

/* ─────────────────────────────────────────
   Hero
───────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: clip;
  padding: 118px 0 96px;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg,
      rgba(6, 20, 15, 0.52) 0%,
      rgba(8, 26, 20, 0.38) 35%,
      rgba(4, 14, 11, 0.20) 65%,
      rgba(244, 240, 232, 0.70) 90%,
      #f4f0e8 100%),
    radial-gradient(circle at 18% 22%, rgba(198, 168, 111, 0.18), transparent 30%),
    radial-gradient(circle at 82% 16%, rgba(63, 148, 121, 0.22), transparent 28%),
    url('https://upload.wikimedia.org/wikipedia/commons/9/90/Main_Building_of_Nankai_University_2015-08-04.jpg')
      center 35% / cover no-repeat,
    linear-gradient(140deg, #122e25 0%, #0d5c44 40%, #195041 70%, #22503e 100%);
}

.hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(4, 16, 13, 0) 45%,
    rgba(244, 240, 232, 0.60) 80%,
    #f4f0e8 100%
  );
}

.hero__grain {
  position: absolute;
  inset: 0;
  opacity: 0.08;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.22) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.65), transparent 80%);
}

.hero__orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(4px);
  mix-blend-mode: screen;
}

.hero__orb--left {
  width: 380px;
  height: 380px;
  left: -50px;
  top: 18%;
  background: radial-gradient(circle, rgba(255, 215, 140, 0.28) 0%, rgba(255,215,140,0) 68%);
}

.hero__orb--right {
  width: 440px;
  height: 440px;
  right: -90px;
  top: 10%;
  background: radial-gradient(circle, rgba(140, 228, 195, 0.20) 0%, rgba(140,228,195,0) 70%);
}

/* NKU gate / horseshoe lake decorative SVG */
.hero__gate {
  position: absolute;
  right: 6%;
  bottom: 12%;
  width: min(38vw, 420px);
  aspect-ratio: 3 / 2;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 20px;
  margin-bottom: 28px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 250, 240, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.14);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  font-size: 0.94rem;
  letter-spacing: 0.01em;
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  flex-shrink: 0;
  border-radius: 999px;
  background: #9ef1cb;
  box-shadow: 0 0 14px rgba(158, 241, 203, 0.9);
  animation: pulse-dot 2.4s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 14px rgba(158, 241, 203, 0.9); }
  50%       { box-shadow: 0 0 22px rgba(158, 241, 203, 0.50); }
}

.hero__title {
  margin: 0 0 20px;
  font-size: clamp(2.75rem, 6.8vw, 5rem);
  line-height: 1.07;
  letter-spacing: 0.02em;
  color: #fffdf7;
  text-shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
}

.hero__title-line {
  display: block;
}

.hero__subtitle {
  max-width: 640px;
  margin: 0 0 34px;
  font-size: 1.12rem;
  line-height: 1.72;
  color: rgba(255, 250, 242, 0.90);
  text-shadow: 0 6px 18px rgba(0, 0, 0, 0.16);
}

.hero__cta-wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-bottom: 24px;
}

.hero__proof {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 20px;
  margin-bottom: 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.20);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.hero__proof-value {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 4vw, 2.3rem);
  line-height: 1;
  color: #fffdf7;
}

.hero__proof-label {
  font-size: 0.94rem;
  color: rgba(255, 248, 238, 0.82);
}

.hero__hint {
  margin: 0;
  font-size: 0.98rem;
  color: rgba(255, 248, 238, 0.88);
}

.hero__hint strong {
  color: #ffffff;
}

.hero__hint--sub {
  margin-top: 6px;
  font-size: 0.90rem;
  color: rgba(255, 248, 238, 0.65);
}

/* ─────────────────────────────────────────
   Section headings
───────────────────────────────────────── */
.section-heading {
  max-width: 700px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-heading__eyebrow,
.principle__eyebrow,
.campus-card__eyebrow {
  margin: 0 0 10px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--nku-green);
}

.section-heading__title {
  margin: 0 0 14px;
  font-size: clamp(1.9rem, 3.8vw, 2.9rem);
  line-height: 1.18;
  letter-spacing: 0.01em;
}

.section-heading__text,
.principle__text {
  margin: 0;
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.70;
}

/* ─────────────────────────────────────────
   Cards
───────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.52);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.card--soft {
  background: linear-gradient(
    160deg,
    rgba(255, 255, 255, 0.82) 0%,
    rgba(255, 252, 246, 0.94) 100%
  );
}

.card--feature {
  background:
    radial-gradient(ellipse at top right, rgba(198, 168, 111, 0.16), transparent 38%),
    linear-gradient(160deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 252, 246, 0.96) 100%);
  box-shadow: var(--shadow-strong);
}

/* ─────────────────────────────────────────
   Campus Gallery
───────────────────────────────────────── */
.campus {
  background:
    radial-gradient(ellipse at 0% 50%, rgba(198, 168, 111, 0.08), transparent 44%),
    radial-gradient(ellipse at 100% 50%, rgba(15, 106, 82, 0.06), transparent 44%),
    #f0ece4;
}

.campus__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.campus-card {
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--bg-card-solid);
  border: 1px solid rgba(255, 255, 255, 0.60);
  box-shadow: var(--shadow-soft);
  transition: transform 0.28s ease, box-shadow 0.28s ease;
}

.campus-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.campus-card__scene {
  display: block;
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: #c8d8e4;
}

.campus-card__scene svg {
  display: block;
  width: 100%;
  height: 100%;
}

.campus-card__body {
  padding: 22px 24px 26px;
}

.campus-card__eyebrow {
  margin: 0 0 6px;
}

.campus-card__title {
  margin: 0 0 8px;
  font-size: 1.26rem;
  line-height: 1.25;
}

.campus-card__text {
  margin: 0;
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.60;
}

/* ─────────────────────────────────────────
   How it works
───────────────────────────────────────── */
.how__steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.step {
  padding: 30px;
  transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.step:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
}

.step__num {
  width: 48px;
  height: 48px;
  display: inline-grid;
  place-items: center;
  margin-bottom: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--nku-green) 0%, var(--nku-green-light) 100%);
  color: #fff;
  font-weight: 700;
  font-size: 1.16rem;
  box-shadow: 0 8px 22px rgba(15, 106, 82, 0.28);
}

.step__title,
.principle__title {
  margin: 0 0 10px;
  font-size: 1.32rem;
  line-height: 1.30;
}

.step__desc {
  margin: 0;
  font-size: 0.97rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ─────────────────────────────────────────
   Principles
───────────────────────────────────────── */
.principles {
  background:
    radial-gradient(ellipse at 50% 0%, rgba(15, 106, 82, 0.06), transparent 56%),
    #f4f0e8;
}

.principles__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.principle {
  padding: 32px;
  transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.principle:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
}

.principle__icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 12px;
  background: rgba(15, 106, 82, 0.10);
  color: var(--nku-green);
}

.principle__eyebrow {
  margin-bottom: 8px;
}

/* ─────────────────────────────────────────
   Countdown / stats
───────────────────────────────────────── */
.deadline-stats {
  background:
    radial-gradient(ellipse at 100% 0%, rgba(198, 168, 111, 0.10), transparent 42%),
    #eeeae2;
}

.deadline-stats__countdown-card {
  padding: 40px;
  text-align: center;
  margin-bottom: 22px;
}

.deadline-stats__label {
  margin: 0 0 22px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.deadline-stats__timer {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 32px;
  margin-bottom: 18px;
}

.deadline-stats__cell {
  min-width: 96px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.deadline-stats__num {
  font-family: var(--serif);
  font-size: clamp(2.1rem, 5vw, 3.2rem);
  line-height: 1;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.deadline-stats__unit,
.deadline-stats__date {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.deadline-stats__date {
  margin: 0;
  font-size: 0.92rem;
}

.deadline-stats__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.deadline-stats__item {
  text-align: center;
  padding: 20px 12px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.50);
}

.deadline-stats__value {
  display: block;
  margin-bottom: 6px;
  font-family: var(--serif);
  font-size: 2.2rem;
  line-height: 1;
  color: var(--nku-green-dark);
}

.deadline-stats__caption {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ─────────────────────────────────────────
   Match Preview
───────────────────────────────────────── */
.preview__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.preview__list {
  margin: 22px 0 0;
  padding-left: 0;
  list-style: none;
  color: var(--text);
}

.preview__list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.98rem;
  line-height: 1.60;
}

.preview__list li + li {
  margin-top: 10px;
}

.preview__list li::before {
  content: "";
  display: block;
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--nku-gold);
}

.match-card {
  padding: 30px;
}

.match-card__header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.match-card__avatar {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--nku-green) 0%, var(--nku-green-light) 100%);
  color: #fff;
  font-weight: 700;
  font-size: 1.2rem;
  box-shadow: 0 6px 18px rgba(15, 106, 82, 0.22);
}

.match-card__name {
  margin: 0 0 4px;
  font-size: 1.24rem;
  line-height: 1.25;
}

.match-card__meta-line,
.match-card__footer {
  margin: 0;
  font-size: 0.91rem;
  color: var(--text-muted);
}

.match-card__score {
  margin-left: auto;
  font-weight: 700;
  font-size: 1.08rem;
  color: var(--nku-green);
  background: rgba(15, 106, 82, 0.09);
  padding: 5px 12px;
  border-radius: 999px;
}

.match-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.match-card__meta span {
  padding: 5px 13px;
  border-radius: 999px;
  background: rgba(15, 106, 82, 0.07);
  color: var(--nku-green-dark);
  font-size: 0.88rem;
  font-weight: 500;
}

.match-card__reasons h4 {
  margin: 0 0 10px;
  font-size: 0.96rem;
  font-weight: 600;
  color: var(--text);
}

.match-card__reasons ul {
  margin: 0 0 18px;
  padding-left: 18px;
  color: var(--text-muted);
}

.match-card__reasons li {
  font-size: 0.94rem;
  line-height: 1.60;
}

.match-card__reasons li + li {
  margin-top: 6px;
}

.match-card__footer {
  font-size: 0.88rem;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ─────────────────────────────────────────
   Join / Waitlist
───────────────────────────────────────── */
.join__shell {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 44px;
}

.join__form {
  display: grid;
  gap: 16px;
}

.join__field {
  display: grid;
  gap: 8px;
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--text);
}

.input {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid rgba(20, 33, 29, 0.12);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.85);
  color: var(--text);
  font-size: 0.98rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.input:focus {
  outline: none;
  border-color: rgba(15, 106, 82, 0.50);
  box-shadow: 0 0 0 4px rgba(15, 106, 82, 0.11);
  transform: translateY(-1px);
}

.input::placeholder {
  color: rgba(20, 33, 29, 0.35);
}

.join__feedback {
  min-height: 22px;
  margin: 2px 0 0;
  font-size: 0.92rem;
}

.join__feedback.is-error   { color: #b43e3e; }
.join__feedback.is-success { color: var(--nku-green-dark); font-weight: 500; }

/* ─────────────────────────────────────────
   Buttons
───────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 26px;
  border-radius: 999px;
  border: none;
  font-weight: 700;
  font-size: 0.98rem;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease,
    background-color 0.22s ease,
    opacity 0.22s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:disabled {
  cursor: wait;
  opacity: 0.78;
  transform: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--nku-green) 0%, #125a47 100%);
  color: #fff;
  box-shadow: 0 10px 28px rgba(15, 106, 82, 0.26);
}

.btn-primary:hover {
  box-shadow: 0 16px 36px rgba(15, 106, 82, 0.32);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.10);
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.hero__ghost:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.38);
}

.join__submit {
  margin-top: 4px;
}

/* ─────────────────────────────────────────
   Footer
───────────────────────────────────────── */
.footer {
  padding: 36px 0 0;
  overflow: hidden;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding-bottom: 28px;
  border-top: 1px solid rgba(20, 33, 29, 0.08);
  padding-top: 24px;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 9px;
}

.footer__logo {
  width: 22px;
  height: 22px;
  opacity: 0.70;
}

.footer__brand-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-muted);
}

.footer__copy,
.footer__note {
  margin: 0;
  font-size: 0.90rem;
  color: var(--text-muted);
}

/* Tianjin skyline strip */
.footer__skyline {
  display: flex;
  align-items: flex-end;
  margin-top: 8px;
  color: rgba(20, 33, 29, 0.065);
  line-height: 0;
}

.footer__skyline svg {
  display: block;
  width: 100%;
}

/* ─────────────────────────────────────────
   Scroll reveal animations
───────────────────────────────────────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─────────────────────────────────────────
   Responsive — 1024px
───────────────────────────────────────── */
@media (max-width: 1024px) {
  .campus__grid {
    gap: 18px;
  }
}

/* ─────────────────────────────────────────
   Responsive — 960px
───────────────────────────────────────── */
@media (max-width: 960px) {
  .how__steps,
  .principles__grid,
  .deadline-stats__grid,
  .preview__grid {
    grid-template-columns: 1fr;
  }

  .join__shell {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 32px;
  }

  .preview__copy {
    order: -1;
  }

  .hero__gate {
    right: auto;
    left: 50%;
    transform: translateX(-50%);
    bottom: 10%;
    width: min(64vw, 320px);
    opacity: 0.65;
  }
}

/* ─────────────────────────────────────────
   Responsive — 720px
───────────────────────────────────────── */
@media (max-width: 720px) {
  .container {
    width: min(100% - 28px, 1140px);
  }

  .section {
    padding: 72px 0;
  }

  .header__inner {
    min-height: 68px;
  }

  .header__nav {
    gap: 16px;
  }

  .hero {
    padding-top: 108px;
  }

  .hero__badge {
    font-size: 0.88rem;
    padding: 8px 16px;
  }

  .hero__subtitle {
    font-size: 1.02rem;
  }

  .hero__proof {
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 14px 18px;
  }

  .campus__grid {
    grid-template-columns: 1fr;
    max-width: 440px;
    margin: 0 auto;
  }

  .deadline-stats__timer {
    gap: 20px 12px;
  }

  .deadline-stats__cell {
    min-width: 82px;
  }

  .deadline-stats__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .card,
  .join__shell,
  .deadline-stats__countdown-card,
  .match-card,
  .step,
  .principle {
    border-radius: 20px;
  }

  .campus-card {
    border-radius: 20px;
  }
}

/* ─────────────────────────────────────────
   Responsive — 520px
───────────────────────────────────────── */
@media (max-width: 520px) {
  .header__nav {
    display: none;
  }

  .hero__cta-wrap {
    width: 100%;
  }

  .hero__cta,
  .hero__ghost,
  .join__submit {
    width: 100%;
  }

  .match-card__header {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .match-card__score {
    margin-left: 0;
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}