@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;800&family=Outfit:wght@500;700&display=swap');

:root {
  --dm-bg: #0f1115;
  --dm-surface: #171a21;
  --dm-surface-2: #1d2230;
  --dm-card: #1f2533;
  --dm-text: #edf1f8;
  --dm-muted: #9aa8bf;
  --dm-line: rgba(255, 255, 255, 0.08);
  --dm-accent: #ff5a8f;
  --dm-accent-2: #56c1ff;
  --dm-ok: #53d29a;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 15px;
}

body.dm-body {
  margin: 0;
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--dm-text);
  background: radial-gradient(1200px 700px at 8% -12%, #26314d 0%, transparent 55%),
    radial-gradient(800px 500px at 96% -20%, #3f1f3f 0%, transparent 60%),
    var(--dm-bg);
  min-height: 100vh;
  padding-top: 64px;
  padding-bottom: 84px;
}

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

.dm-shell {
  max-width: 1120px;
}

.dm-topbar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1040;
  backdrop-filter: blur(12px);
  background: rgba(15, 17, 21, 0.78);
  border-bottom: 1px solid var(--dm-line);
}

.dm-brand {
  font-family: 'Outfit', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  background: linear-gradient(130deg, #f3f4ff, #cad7ff 56%, #ff95b7 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.dm-link-chip,
.dm-auth-pill {
  border: 1px solid var(--dm-line);
  background: rgba(255, 255, 255, 0.02);
  color: var(--dm-muted);
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  font-size: 0.82rem;
  line-height: 1;
  transition: 0.2s ease;
}

.dm-link-chip:hover,
.dm-auth-pill:hover {
  color: var(--dm-text);
  border-color: rgba(255, 255, 255, 0.22);
}

.dm-link-chip.active {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(130deg, #fc5d99, #6ebdff);
}

.dm-auth-pill {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(130deg, #fc5d99, #57b7f8);
}

.dm-auth-pill.dm-auth-ghost {
  background: transparent;
  color: var(--dm-muted);
  border-color: var(--dm-line);
}

button.dm-auth-pill {
  font-family: inherit;
  cursor: pointer;
}

.dm-main {
  padding-top: 1.25rem;
}

.dm-alert {
  border: 1px solid rgba(83, 210, 154, 0.28);
  background: rgba(83, 210, 154, 0.12);
  color: #ddfff0;
}

.dm-footer {
  border-top: 1px solid var(--dm-line);
  margin-top: 2rem;
}

.dm-mobile-nav {
  position: fixed;
  left: 50%;
  bottom: 10px;
  transform: translateX(-50%);
  width: min(96%, 520px);
  border-radius: 18px;
  padding: 0.45rem;
  background: rgba(24, 28, 37, 0.95);
  border: 1px solid var(--dm-line);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.35rem;
  z-index: 1050;
}

.dm-mobile-item {
  text-align: center;
  border-radius: 12px;
  color: var(--dm-muted);
  padding: 0.52rem 0.2rem;
  font-size: 0.75rem;
  font-weight: 600;
}

.dm-mobile-item.active {
  color: #fff;
  background: linear-gradient(140deg, rgba(252, 93, 153, 0.88), rgba(87, 183, 248, 0.88));
}

.feed-header {
  margin-bottom: 1rem;
}

.feed-title {
  font-family: 'Outfit', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.feed-subtitle {
  color: var(--dm-muted);
  font-size: 0.9rem;
  margin: 0;
}

.feed-quick-tags {
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  padding-bottom: 0.45rem;
  margin-bottom: 1.1rem;
  scrollbar-width: none;
}

.feed-quick-tags::-webkit-scrollbar {
  display: none;
}

.feed-tag {
  white-space: nowrap;
  border-radius: 999px;
  border: 1px solid var(--dm-line);
  padding: 0.35rem 0.7rem;
  color: var(--dm-muted);
  font-size: 0.78rem;
  background: rgba(255, 255, 255, 0.02);
}

.public-diary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

.dm-feed-card {
  border-radius: 18px;
  overflow: hidden;
  background: var(--dm-card);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 18px 30px rgba(0, 0, 0, 0.3);
}

.dm-feed-link {
  display: block;
}

.dm-feed-media {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: linear-gradient(135deg, #2a3042, #1f2433);
}

.dm-feed-media img,
.dm-feed-media video,
.media-preview img,
.media-preview video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dm-feed-overlay {
  position: absolute;
  inset: auto 0 0 0;
  padding: 0.65rem;
  background: linear-gradient(to top, rgba(10, 10, 14, 0.9), rgba(10, 10, 14, 0));
}

.dm-feed-author,
.dm-feed-date {
  display: inline-block;
  font-size: 0.68rem;
  color: #d3deef;
  border-radius: 999px;
  padding: 0.18rem 0.42rem;
  background: rgba(255, 255, 255, 0.13);
  margin-right: 0.28rem;
  margin-bottom: 0.35rem;
}

.dm-feed-overlay h2 {
  font-size: 0.84rem;
  line-height: 1.35;
  margin: 0;
  color: #fff;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.dm-feed-overlay p {
  margin: 0.3rem 0 0;
  color: #d1d9e6;
  font-size: 0.74rem;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.dm-video-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 0.66rem;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.38);
  padding: 0.2rem 0.45rem;
}

.dm-page-nav .pagination {
  --bs-pagination-bg: #1f2533;
  --bs-pagination-border-color: var(--dm-line);
  --bs-pagination-color: #d3def2;
  --bs-pagination-hover-bg: #283047;
  --bs-pagination-hover-color: #fff;
  --bs-pagination-disabled-bg: #1b1f2b;
  --bs-pagination-disabled-color: #70819d;
}

.public-detail-wrap {
  display: grid;
  gap: 1rem;
}

.public-detail-main {
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--dm-line);
  background: linear-gradient(170deg, #1f2534, #1a1f2d);
}

.public-detail-hero {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  background: #1c2230;
}

.public-detail-body {
  padding: 1rem;
}

.public-detail-title {
  font-family: 'Outfit', sans-serif;
  font-size: 1.35rem;
  margin: 0.45rem 0 0.65rem;
}

.public-detail-text {
  color: #dce4f2;
  font-size: 0.93rem;
  line-height: 1.8;
  white-space: pre-wrap;
}

.public-media-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
  margin-top: 1rem;
}

.media-preview {
  border-radius: 14px;
  overflow: hidden;
  background: #141824;
  border: 1px solid var(--dm-line);
  height: 180px;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.4rem;
}

.calendar-cell {
  background: rgba(255, 255, 255, 0.02);
  border-radius: 12px;
  min-height: 92px;
  padding: 0.45rem;
  border: 1px solid var(--dm-line);
}

.calendar-cell.outside {
  opacity: 0.44;
}

.calendar-thumb {
  width: 100%;
  height: 54px;
  object-fit: cover;
  border-radius: 8px;
  margin-top: 0.35rem;
}

.diary-body {
  white-space: pre-wrap;
}

.card,
.list-group-item,
.form-control,
.form-select,
textarea,
.btn {
  border-radius: 14px;
}

.card,
.list-group-item {
  border-color: var(--dm-line);
  background-color: rgba(31, 37, 51, 0.72);
  color: var(--dm-text);
}

.text-muted,
.small,
.form-text {
  color: var(--dm-muted) !important;
}

.form-control,
.form-select,
textarea {
  border: 1px solid var(--dm-line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--dm-text);
}

.form-control:focus,
textarea:focus {
  color: var(--dm-text);
  border-color: rgba(86, 193, 255, 0.68);
  box-shadow: 0 0 0 0.18rem rgba(86, 193, 255, 0.2);
  background: rgba(255, 255, 255, 0.04);
}

.btn-success {
  border: 0;
  background: linear-gradient(120deg, #ff5a8f, #56c1ff);
}

.btn-outline-secondary,
.btn-outline-primary,
.btn-outline-danger,
.btn-outline-warning {
  border-color: var(--dm-line);
  color: #dce6f9;
}

.btn-outline-secondary:hover,
.btn-outline-primary:hover,
.btn-outline-danger:hover,
.btn-outline-warning:hover {
  background: #2b3349;
  border-color: #2b3349;
  color: #fff;
}

.auth-shell {
  display: grid;
  gap: 0.9rem;
  margin: 0 auto;
  max-width: 980px;
}

.auth-hero {
  border: 1px solid var(--dm-line);
  border-radius: 24px;
  padding: 1.1rem;
  background: linear-gradient(160deg, rgba(255, 90, 143, 0.18), rgba(86, 193, 255, 0.18) 58%, rgba(31, 37, 51, 0.6));
}

.auth-kicker {
  display: inline-block;
  margin: 0 0 0.4rem;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #ffd7e8;
}

.auth-hero h1 {
  margin: 0;
  font-size: 1.4rem;
  line-height: 1.35;
  white-space: pre-line;
  font-family: 'Outfit', sans-serif;
}

.auth-hero p {
  margin: 0.7rem 0 0;
  color: #d7e3f8;
  font-size: 0.9rem;
}

.auth-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.42rem;
  margin-top: 0.85rem;
}

.auth-badges span {
  font-size: 0.72rem;
  color: #d5def0;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  padding: 0.24rem 0.52rem;
  background: rgba(255, 255, 255, 0.08);
}

.auth-panel {
  border: 1px solid var(--dm-line);
  border-radius: 24px;
  background: rgba(29, 34, 48, 0.78);
  backdrop-filter: blur(8px);
  padding: 1rem;
}

.auth-panel h2 {
  margin: 0 0 0.8rem;
  font-family: 'Outfit', sans-serif;
  font-size: 1.2rem;
}

.auth-form {
  display: grid;
  gap: 0.8rem;
}

.auth-links {
  margin-top: 0.9rem;
  display: grid;
  gap: 0.35rem;
}

.auth-links a {
  font-size: 0.82rem;
  color: #c6d9ff;
}

.auth-links a:hover {
  color: #fff;
}

@media (min-width: 768px) {
  body.dm-body {
    padding-bottom: 16px;
  }

  .public-diary-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
  }

  .public-media-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.8rem;
  }

  .public-detail-body {
    padding: 1.4rem;
  }

  .auth-shell {
    grid-template-columns: 1.1fr 1fr;
    gap: 1rem;
  }

  .auth-hero,
  .auth-panel {
    padding: 1.35rem;
  }

  .auth-hero h1 {
    font-size: 1.75rem;
  }
}

@media (min-width: 992px) {
  .dm-main {
    padding-top: 1.8rem;
  }

  .public-diary-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .public-detail-wrap {
    grid-template-columns: 2fr 1fr;
    align-items: start;
  }

  .public-detail-main {
    position: sticky;
    top: 84px;
  }

  .dm-feed-overlay h2 {
    font-size: 0.95rem;
  }

  .dm-mobile-nav {
    display: none;
  }
}