*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg-start: #1a0a0a; --bg-mid: #241015; --bg-end: #1a0a0e;
  --text: #dcc8b8; --text-title: #f0d4c0;
  --text-dim: rgba(255,255,255,0.25); --text-subtle: rgba(255,255,255,0.15);
  --accent: #e8a87c; --accent-rgb: 232,168,124;
  --card-bg: rgba(232,168,124,0.04); --card-border: rgba(232,168,124,0.1);
  --input-bg: rgba(255,255,255,0.04); --input-border: rgba(232,168,124,0.2);
  --modal-bg: #1e1215; --overlay-bg: rgba(0,0,0,0.6);
  --danger: #e07b7b; --danger-rgb: 224,123,123;
  --glow-1: rgba(232,168,124,0.06);
  --glow-2: rgba(180,130,160,0.04);
  --glass-highlight: rgba(255,255,255,0.08);
  --premium-shadow: 0 28px 90px rgba(0,0,0,0.24);
  --title-gradient: linear-gradient(135deg, #fff3df 0%, #e8a87c 45%, #d9a7c7 100%);
  --surface-line: rgba(255,255,255,0.08);
  --spotlight: rgba(232,168,124,0.16);
}

body.light {
  --bg-start: #fdf6f0; --bg-mid: #fef0e6; --bg-end: #fff5f0;
  --text: #5c4a3a; --text-title: #8b5e3c;
  --text-dim: rgba(0,0,0,0.2); --text-subtle: rgba(0,0,0,0.1);
  --accent: #d4786e; --accent-rgb: 212,120,110;
  --card-bg: rgba(212,120,110,0.06); --card-border: rgba(212,120,110,0.12);
  --input-bg: rgba(0,0,0,0.03); --input-border: rgba(212,120,110,0.18);
  --modal-bg: #fff5f0; --overlay-bg: rgba(0,0,0,0.3);
  --danger: #c96060; --danger-rgb: 201,96,96;
  --glow-1: rgba(200,140,120,0.18);
  --glow-2: rgba(220,180,160,0.12);
  --glass-highlight: rgba(255,255,255,0.62);
  --premium-shadow: 0 26px 80px rgba(158,89,74,0.13);
  --title-gradient: linear-gradient(135deg, #8b5e3c 0%, #d4786e 48%, #d99b72 100%);
  --surface-line: rgba(120,72,54,0.1);
  --spotlight: rgba(212,120,110,0.14);
}

body {
  font-family: "PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  background:
    linear-gradient(120deg, transparent 0 44%, rgba(var(--accent-rgb),0.035) 44% 45%, transparent 45% 100%),
    radial-gradient(circle at 12% 10%, rgba(var(--accent-rgb),0.18) 0, transparent 30vw),
    radial-gradient(ellipse at 75% 70%, var(--glow-2) 0%, transparent 60%),
    linear-gradient(135deg, var(--bg-start) 0%, var(--bg-mid) 30%, var(--bg-end) 60%, var(--bg-start) 100%);
  background-attachment: fixed; min-height: 100vh; color: var(--text);
  display: flex; flex-direction: column; align-items: center;
  transition: background 0.6s ease, color 0.4s ease;
}
.admin-aurora {
  position: fixed; inset: -20% -10%; z-index: 0; pointer-events: none;
  filter: blur(30px); overflow: hidden;
}
.admin-aurora span {
  position: absolute; width: 42vw; height: 42vw; min-width: 300px; min-height: 300px;
  border-radius: 50%; opacity: 0.24; mix-blend-mode: screen;
  animation: adminAurora 20s ease-in-out infinite alternate;
}
.admin-aurora span:nth-child(1) { left: 5%; top: 0; background: rgba(var(--accent-rgb),0.45); }
.admin-aurora span:nth-child(2) { right: 4%; top: 12%; background: rgba(217,167,199,0.26); animation-delay: -7s; }
.admin-aurora span:nth-child(3) { left: 32%; bottom: 0; background: rgba(255,214,165,0.2); animation-delay: -12s; }
@keyframes adminAurora {
  from { transform: translate(-4%, 4%) scale(0.95); }
  to { transform: translate(7%, -5%) scale(1.12); }
}
.admin-noise {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: 0.16;
  background-image:
    linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.014) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(circle at center, #000 0%, transparent 78%);
}

.theme-toggle {
  position: fixed; bottom: 24px; right: 24px; z-index: 200;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--card-bg); border: 1px solid var(--card-border);
  color: var(--accent); font-size: 1.2rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.4s ease; backdrop-filter: blur(8px);
}
.theme-toggle:hover {
  background: rgba(var(--accent-rgb),0.12);
  box-shadow: 0 0 16px rgba(var(--accent-rgb),0.15);
}

.admin-topnav {
  position: sticky; top: 14px; z-index: 180;
  width: min(1040px, calc(100% - 32px)); margin: 14px auto 0;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 10px 12px 10px 16px; border-radius: 999px;
  background: color-mix(in srgb, var(--bg-start) 52%, transparent);
  border: 1px solid var(--card-border);
  box-shadow: 0 18px 54px rgba(0,0,0,0.12), inset 0 1px 0 var(--glass-highlight);
  backdrop-filter: blur(18px);
  overflow: hidden;
}
.admin-topnav::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, var(--surface-line), transparent);
  transform: translateX(-100%); animation: cardSheen 8s ease-in-out infinite;
}
.admin-brand {
  position: relative; z-index: 1;
  display: inline-flex; align-items: center; gap: 9px;
  color: var(--text-title); text-decoration: none; letter-spacing: 0.04em;
}
.admin-brand span {
  width: 30px; height: 30px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;
  color: #fff; background: linear-gradient(135deg, rgba(var(--accent-rgb),0.95), rgba(var(--accent-rgb),0.52));
  box-shadow: 0 10px 24px rgba(var(--accent-rgb),0.18);
}
.admin-nav-links { position: relative; z-index: 1; display: flex; align-items: center; gap: 4px; }
.nav-logout { position: relative; z-index: 1; }
.admin-nav-links a,
.admin-nav-links button,
.nav-logout {
  border: 0; background: transparent; color: var(--text-dim); cursor: pointer;
  text-decoration: none; padding: 8px 14px; border-radius: 999px;
  font: inherit; font-size: 0.86rem; letter-spacing: 0.05em; transition: all 0.25s ease;
}
.admin-nav-links a:hover,
.admin-nav-links button:hover,
.admin-nav-links button.active,
.nav-logout:hover { color: var(--accent); background: rgba(var(--accent-rgb),0.09); }

.login-wrap {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; width: 100%; padding: 40px 20px;
}
.login-card {
  position: relative; overflow: hidden;
  background: linear-gradient(145deg, var(--card-bg), rgba(var(--accent-rgb),0.055));
  border: 1px solid var(--card-border);
  border-radius: 34px; padding: 58px 42px; max-width: 430px; width: 100%; text-align: center;
  box-shadow: var(--premium-shadow), inset 0 1px 0 var(--glass-highlight);
  backdrop-filter: blur(20px);
  transition: background 0.4s ease, border-color 0.4s ease, transform 0.35s ease;
}
.login-card:hover { transform: translateY(-5px); }
.login-card::before {
  content: ''; position: absolute; inset: -80px auto auto -80px;
  width: 180px; height: 180px; border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--accent-rgb),0.16), transparent 68%);
}
.login-card::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(120deg, transparent, var(--surface-line), transparent);
  transform: translateX(-120%); animation: cardSheen 6s ease-in-out infinite;
  pointer-events: none;
}
@keyframes cardSheen { 55%, 100% { transform: translateX(120%); } }
.login-card h1 {
  font-size: 1.75rem; color: transparent; font-weight: 800;
  margin-bottom: 8px; letter-spacing: 0.08em; transition: color 0.4s ease;
  background: var(--title-gradient); -webkit-background-clip: text; background-clip: text;
}
.login-card .sub {
  font-size: 0.85rem; color: var(--text-dim); margin-bottom: 36px; letter-spacing: 0.1em; transition: color 0.4s ease;
}
.login-card label {
  display: block; text-align: left; font-size: 0.8rem;
  color: var(--text-dim); margin-bottom: 6px; letter-spacing: 0.05em; transition: color 0.4s ease;
}
.login-card input {
  width: 100%; padding: 13px 16px; margin-bottom: 20px;
  background: rgba(var(--accent-rgb),0.045); border: 1px solid var(--input-border);
  border-radius: 14px; color: var(--text); font-size: 1rem;
  outline: none; font-family: inherit; transition: all 0.3s ease;
  box-shadow: inset 0 1px 0 var(--glass-highlight);
}
.login-card input:focus {
  border-color: var(--accent); box-shadow: 0 0 12px rgba(var(--accent-rgb),0.12);
}
.login-card button {
  position: relative; overflow: hidden;
  width: 100%; padding: 13px;
  background: linear-gradient(135deg, rgba(var(--accent-rgb),0.86), rgba(var(--accent-rgb),0.48)); color: #fff;
  border: 1px solid rgba(var(--accent-rgb),0.3); border-radius: 999px;
  font-size: 1rem; cursor: pointer; letter-spacing: 0.08em;
  transition: all 0.3s; font-family: inherit;
  box-shadow: 0 16px 36px rgba(var(--accent-rgb),0.18);
}
.login-card button:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 44px rgba(var(--accent-rgb),0.24);
}
.login-err { color: var(--danger); font-size: 0.85rem; margin-top: 16px; min-height: 20px; transition: color 0.4s ease; }

.admin-wrap { position: relative; z-index: 1; max-width: 1040px; width: 100%; padding: 36px 22px 84px; }
.admin-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 34px; flex-wrap: wrap; gap: 18px;
  padding: 24px 26px; border-radius: 28px;
  background: linear-gradient(145deg, var(--card-bg), rgba(var(--accent-rgb),0.045));
  border: 1px solid var(--card-border);
  box-shadow: var(--premium-shadow);
  backdrop-filter: blur(18px);
}
.admin-kicker {
  display: inline-block; margin-bottom: 8px;
  color: var(--accent); font-size: 0.72rem; letter-spacing: 0.16em;
  text-transform: uppercase;
}
.admin-header h2 {
  font-size: clamp(1.65rem, 4vw, 2.4rem); color: transparent; letter-spacing: 0.06em; transition: color 0.4s ease;
  background: var(--title-gradient); -webkit-background-clip: text; background-clip: text;
}
.admin-desc {
  color: var(--text-dim); font-size: 0.84rem; letter-spacing: 0.05em; margin-top: 8px;
}
.admin-header .actions { display: flex; gap: 12px; flex-wrap: wrap; }
.admin-stats {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px; margin-bottom: 18px;
}
.stat-card {
  position: relative; overflow: hidden;
  padding: 20px 22px; border-radius: 24px;
  background: linear-gradient(145deg, var(--card-bg), rgba(var(--accent-rgb),0.04));
  border: 1px solid var(--card-border);
  box-shadow: 0 18px 56px rgba(0,0,0,0.08), inset 0 1px 0 var(--glass-highlight);
  backdrop-filter: blur(16px);
  transition: transform 0.28s ease, border-color 0.28s ease, box-shadow 0.28s ease;
}
.stat-card:hover {
  transform: translateY(-4px);
  border-color: rgba(var(--accent-rgb),0.28);
  box-shadow: 0 24px 70px rgba(0,0,0,0.11), inset 0 1px 0 var(--glass-highlight);
}
.stat-card::after {
  content: ''; position: absolute; right: -42px; top: -42px; width: 110px; height: 110px;
  border-radius: 50%; background: radial-gradient(circle, rgba(var(--accent-rgb),0.15), transparent 68%);
}
.stat-card span {
  display: block; color: var(--text-subtle); font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase;
}
.stat-card strong {
  display: block; margin: 8px 0 4px; color: var(--accent); font-size: clamp(1.45rem, 4vw, 2.1rem); line-height: 1;
}
.stat-card em { color: var(--text-dim); font-style: normal; font-size: 0.82rem; letter-spacing: 0.06em; }
.admin-toolbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  margin-bottom: 18px; padding: 14px;
  border: 1px solid var(--card-border); border-radius: 22px;
  background: linear-gradient(145deg, var(--card-bg), rgba(var(--accent-rgb),0.025));
  backdrop-filter: blur(14px); box-shadow: 0 14px 42px rgba(0,0,0,0.06);
}
.admin-tabs { display: flex; gap: 8px; flex-wrap: wrap; }
.admin-tabs button {
  border: 1px solid rgba(var(--accent-rgb),0.12); border-radius: 999px;
  background: transparent; color: var(--text-dim); padding: 8px 15px;
  cursor: pointer; font: inherit; transition: all 0.25s ease;
}
.admin-tabs button.active,
.admin-tabs button:hover { color: var(--accent); background: rgba(var(--accent-rgb),0.09); border-color: rgba(var(--accent-rgb),0.22); }
.search-box {
  min-width: min(100%, 320px); flex: 1; max-width: 420px;
  display: flex; align-items: center; gap: 8px;
  padding: 0 14px; border-radius: 999px;
  background: rgba(var(--accent-rgb),0.045); border: 1px solid var(--input-border);
  box-shadow: inset 0 1px 0 var(--glass-highlight);
}
.search-box span { color: var(--accent); }
.search-box input {
  width: 100%; height: 40px; border: 0; outline: none; background: transparent;
  color: var(--text); font: inherit;
}
.search-box input::placeholder { color: var(--text-subtle); }

.btn {
  position: relative; overflow: hidden;
  padding: 10px 24px; border-radius: 999px; font-size: 0.9rem;
  cursor: pointer; letter-spacing: 0.05em; font-family: inherit;
  transition: all 0.28s ease; border: 1px solid transparent;
}
.btn::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,0.22), transparent);
  transform: translateX(-120%); transition: transform 0.55s ease;
}
.btn:hover::after { transform: translateX(120%); }
.btn-primary {
  background: rgba(var(--accent-rgb),0.15); color: var(--accent);
  border-color: rgba(var(--accent-rgb),0.3);
}
.btn-primary:hover {
  background: rgba(var(--accent-rgb),0.25);
  box-shadow: 0 12px 26px rgba(var(--accent-rgb),0.13);
  transform: translateY(-1px);
}
.btn-danger {
  background: rgba(var(--danger-rgb),0.12); color: var(--danger);
  border-color: rgba(var(--danger-rgb),0.25);
}
.btn-danger:hover { background: rgba(var(--danger-rgb),0.2); }
.btn-ghost {
  background: none; color: var(--text-dim);
  border-color: rgba(var(--accent-rgb),0.08);
}
.btn-ghost:hover { color: var(--accent); border-color: rgba(var(--accent-rgb),0.2); }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }

.diary-list { display: flex; flex-direction: column; gap: 16px; }
.diary-card {
  position: relative; overflow: hidden;
  background: linear-gradient(145deg, var(--card-bg), rgba(var(--accent-rgb),0.045));
  border: 1px solid var(--card-border);
  border-radius: 24px; padding: 22px 24px;
  display: grid; grid-template-columns: auto 1fr auto; align-items: flex-start; gap: 18px;
  box-shadow: 0 18px 56px rgba(0,0,0,0.08), inset 0 1px 0 var(--glass-highlight);
  backdrop-filter: blur(16px);
  transition: background 0.4s ease, border-color 0.4s ease, transform 0.28s ease, box-shadow 0.28s ease;
}
.diary-card::before {
  content: ''; position: absolute; inset: 0 0 auto 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-highlight), transparent);
}
.diary-card::after {
  content: ''; position: absolute; width: 150px; height: 150px; right: -86px; top: -86px;
  background: radial-gradient(circle, rgba(var(--accent-rgb),0.14), transparent 68%);
  pointer-events: none;
}
.diary-card .card-main,
.diary-card .card-actions,
.diary-card .card-thumb { position: relative; z-index: 1; }
.diary-card:hover { border-color: rgba(var(--accent-rgb),0.3); transform: translateY(-3px); box-shadow: 0 24px 70px rgba(0,0,0,0.11), inset 0 1px 0 var(--glass-highlight); }
.diary-card .card-date {
  font-size: 0.8rem; color: var(--accent);
  letter-spacing: 0.06em; font-weight: 500; transition: color 0.4s ease;
  margin-bottom: 8px;
}
.diary-card .card-title {
  font-size: 0.95rem; font-weight: 600;
  color: var(--text-title); margin-bottom: 4px; transition: color 0.4s ease;
}
.diary-card .card-location {
  font-size: 0.75rem; color: var(--text-dim); transition: color 0.4s ease;
}
.diary-card .card-content {
  flex: 1; font-size: 0.95rem; line-height: 1.7; word-break: break-word; transition: color 0.4s ease;
}
.card-thumb {
  position: relative; z-index: 1;
  width: 82px; height: 82px; object-fit: cover;
  border-radius: 18px; border: 1px solid var(--card-border);
  box-shadow: 0 12px 28px rgba(0,0,0,0.12);
}
.card-thumb-empty {
  display: flex; align-items: center; justify-content: center;
  color: var(--accent); background: rgba(var(--accent-rgb),0.06);
  font-size: 1.5rem;
}
.diary-card .card-actions { display: flex; gap: 8px; flex-shrink: 0; }

.modal-overlay {
  position: fixed; inset: 0; background: var(--overlay-bg);
  display: flex; align-items: center; justify-content: center;
  z-index: 500; padding: 20px; transition: background 0.4s ease;
  overflow-y: auto;
}
.modal {
  position: relative; overflow: hidden;
  background: linear-gradient(145deg, var(--modal-bg), rgba(var(--accent-rgb),0.045));
  border: 1px solid rgba(var(--accent-rgb),0.2);
  border-radius: 30px; padding: 42px 36px; max-width: 580px; width: 100%;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  box-shadow: 0 30px 100px rgba(0,0,0,0.28), inset 0 1px 0 var(--glass-highlight);
  backdrop-filter: blur(20px);
  animation: modalIn 0.3s ease both;
  transition: background 0.4s ease, border-color 0.4s ease;
}
.modal::before {
  content: ''; position: absolute; inset: 0 0 auto 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-highlight), transparent);
}
.modal::after {
  content: ''; position: absolute; right: -120px; top: -120px; width: 240px; height: 240px;
  background: radial-gradient(circle, rgba(var(--accent-rgb),0.16), transparent 68%);
  pointer-events: none;
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(16px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.modal h3 {
  position: relative; z-index: 1;
  font-size: 1.28rem; color: transparent; margin-bottom: 24px; letter-spacing: 0.06em; transition: color 0.4s ease;
  background: var(--title-gradient); -webkit-background-clip: text; background-clip: text;
}
.modal label,
.modal input,
.modal textarea,
.upload-box,
.upload-preview,
.upload-tip,
.modal .btns,
.modal .err { position: relative; z-index: 1; }
.modal label {
  display: block; font-size: 0.8rem; color: var(--text-dim);
  margin-bottom: 6px; letter-spacing: 0.05em; transition: color 0.4s ease;
}
.modal input, .modal textarea {
  width: 100%; padding: 13px 15px; margin-bottom: 18px;
  background: rgba(var(--accent-rgb),0.045); border: 1px solid var(--input-border);
  border-radius: 14px; color: var(--text); font-size: 0.95rem;
  outline: none; font-family: inherit; resize: vertical; transition: all 0.3s ease;
  box-shadow: inset 0 1px 0 var(--glass-highlight);
}
.upload-box {
  display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: start;
  margin-bottom: 12px;
}
.upload-box input { margin-bottom: 0; }
.upload-btn { height: 46px; white-space: nowrap; }
.upload-tip {
  margin: -4px 0 18px; color: var(--text-dim);
  font-size: 0.76rem; letter-spacing: 0.04em; transition: color 0.3s ease;
}
.upload-tip.error { color: var(--danger); }
.upload-preview {
  position: relative; overflow: hidden; margin: 0 0 12px;
  border-radius: 20px; border: 1px solid var(--card-border);
  background: rgba(var(--accent-rgb),0.04);
  box-shadow: 0 18px 46px rgba(0,0,0,0.1);
}
.upload-preview::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.18));
  pointer-events: none;
}
.upload-preview img {
  display: block; width: 100%; max-height: 240px; object-fit: cover;
  transition: transform 0.55s ease;
}
.upload-preview:hover img { transform: scale(1.035); }
.upload-remove {
  position: absolute; right: 10px; top: 10px;
  padding: 6px 12px; border-radius: 999px;
  border: 1px solid rgba(var(--danger-rgb),0.28);
  background: rgba(0,0,0,0.38); color: #fff;
  cursor: pointer; font-family: inherit; font-size: 0.76rem;
  backdrop-filter: blur(8px); transition: all 0.25s ease;
}
.upload-remove:hover { background: rgba(var(--danger-rgb),0.8); }
.modal textarea { min-height: 120px; line-height: 1.6; }
.modal input:focus, .modal textarea:focus {
  border-color: var(--accent); box-shadow: 0 0 12px rgba(var(--accent-rgb),0.12);
}
.modal .btns { display: flex; gap: 12px; justify-content: flex-end; }
.modal .err { color: var(--danger); font-size: 0.8rem; margin-bottom: 12px; min-height: 18px; transition: color 0.4s ease; }

.hidden { display: none !important; }

.empty-hint {
  text-align: center; color: var(--text-dim); padding: 60px 20px;
  font-size: 0.95rem; letter-spacing: 0.05em; transition: color 0.4s ease;
}

.back-link { margin-top: 40px; text-align: center; }
.back-link a {
  color: var(--text-subtle); text-decoration: none;
  font-size: 0.8rem; letter-spacing: 0.1em; transition: color 0.3s;
}
.back-link a:hover { color: var(--accent); }

.site-footer {
  position: relative; z-index: 1; text-align: center;
  padding: 32px 20px 40px; color: var(--text-subtle);
  font-size: 0.75rem; letter-spacing: 0.08em; line-height: 2;
}
.site-footer p { margin: 0; }

@media (max-width: 480px) {
  .admin-wrap { padding: 28px 16px 60px; }
  .admin-topnav { top: 8px; width: calc(100% - 20px); }
  body.modal-open .admin-topnav { display: none !important; }
  body.modal-open .theme-toggle { display: none !important; }
  .admin-brand strong { display: none; }
  .admin-nav-links a, .admin-nav-links button, .nav-logout { padding: 7px 9px; font-size: 0.78rem; }
  .admin-stats { grid-template-columns: 1fr; gap: 10px; }
  .admin-toolbar { align-items: stretch; }
  .search-box { max-width: none; }
  .admin-header { align-items: flex-start; padding: 22px 18px; border-radius: 22px; }
  .admin-header .actions { width: 100%; }
  .admin-header .actions .btn { flex: 1; }
  .diary-card { grid-template-columns: 1fr; gap: 10px; border-radius: 16px; }
  .card-thumb { width: 100%; height: 150px; }
  .diary-card:hover { transform: none; }
  .diary-card .card-actions { justify-self: end; }
  .modal { width: 100%; max-height: calc(100vh - 28px); padding: 26px 20px; border-radius: 20px; }
  .modal-overlay { align-items: flex-start; padding: 14px 12px; }
  .upload-box { grid-template-columns: 1fr; }
  .upload-btn { width: 100%; }
  .modal .btns { justify-content: stretch; }
  .modal .btns .btn { flex: 1; }
  .theme-toggle { bottom: 16px; right: 16px; width: 38px; height: 38px; font-size: 1rem; }
}