:root {
  --bg: #fff8f1;
  --card: rgba(255,255,255,0.82);
  --card-solid: #ffffff;
  --text: #221a2f;
  --muted: #746b80;
  --primary: #6d4aff;
  --primary-dark: #4c2fc7;
  --accent: #ff8a65;
  --accent-soft: #ffe2d6;
  --purple-soft: #f0ebff;
  --line: rgba(34, 26, 47, 0.1);
  --shadow: 0 22px 70px rgba(49, 34, 83, 0.10);
  --radius: 26px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(255,138,101,0.18), transparent 32%),
    radial-gradient(circle at top right, rgba(109,74,255,0.13), transparent 30%),
    var(--bg);
}

button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
a { color: var(--primary-dark); font-weight: 800; }

.navbar {
  width: min(1120px, calc(100% - 28px));
  margin: 16px auto 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255,255,255,0.76);
  backdrop-filter: blur(18px);
  box-shadow: 0 12px 34px rgba(49,34,83,0.08);
  position: sticky;
  top: 12px;
  z-index: 40;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 1.08rem;
  cursor: pointer;
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: white;
  background: var(--primary);
  font-weight: 950;
  box-shadow: 0 12px 25px rgba(109,74,255,0.24);
}

.nav-actions, .hero-actions, .dashboard-actions, .card-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.shell {
  width: min(1120px, calc(100% - 28px));
  margin: 28px auto 70px;
}

.view { display: none; }
.view.active { display: block; }

.primary-btn, .secondary-btn, .ghost-btn, .danger-btn, .icon-btn {
  border: 0;
  border-radius: 999px;
  padding: 13px 18px;
  font-weight: 850;
  transition: 0.18s ease;
}

.primary-btn {
  color: white;
  background: var(--primary);
  box-shadow: 0 16px 34px rgba(109,74,255,0.22);
}
.primary-btn:hover, .secondary-btn:hover, .ghost-btn:hover, .danger-btn:hover { transform: translateY(-1px); }

.secondary-btn, .ghost-btn {
  color: var(--text);
  background: rgba(255,255,255,0.72);
  border: 1px solid var(--line);
}
.ghost-btn { padding: 10px 14px; }
.small { padding: 10px 14px; }
.full { width: 100%; }
.danger-btn {
  color: #9f1239;
  background: #fff1f2;
  border: 1px solid #fecdd3;
  padding: 10px 14px;
}
.icon-btn {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  padding: 0;
  color: var(--text);
  background: rgba(255,255,255,0.76);
  border: 1px solid var(--line);
  font-size: 1.2rem;
}
button:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 24px;
  min-height: 540px;
  padding: clamp(28px, 5vw, 54px);
  border-radius: 42px;
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.pill, .eyebrow, .badge, .tier {
  display: inline-flex;
  align-items: center;
  width: max-content;
  border-radius: 999px;
  padding: 7px 11px;
  font-size: 0.8rem;
  font-weight: 900;
}
.pill, .eyebrow {
  color: var(--primary-dark);
  background: var(--purple-soft);
}
.hero h1 {
  margin: 16px 0 14px;
  max-width: 720px;
  font-size: clamp(2.7rem, 7vw, 5.7rem);
  line-height: 0.91;
  letter-spacing: -0.08em;
}
.hero p {
  max-width: 600px;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.7;
  margin: 0 0 26px;
}
.hero-preview {
  display: grid;
  gap: 16px;
  padding: 12px;
}
.preview-card, .feature-grid article, .auth-card, .form-card, .panel, .activity-card, .detail-main, .detail-side {
  background: var(--card-solid);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.preview-card {
  padding: 22px;
  transform: rotate(1deg);
}
.preview-card.small-card {
  transform: rotate(-2deg);
  margin-left: 36px;
}
.preview-card h3 { margin: 14px 0 8px; }
.preview-row {
  margin-top: 14px;
  display: flex;
  justify-content: space-between;
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 18px;
}
.feature-grid article { padding: 23px; }
.feature-grid article span { font-size: 1.8rem; }
.feature-grid h3 { margin: 14px 0 8px; }
.feature-grid p, .muted { color: var(--muted); line-height: 1.6; margin: 0; }

.auth-card, .form-card {
  width: min(620px, 100%);
  margin: 58px auto;
  padding: 24px;
}
.form-card.wide { width: min(820px, 100%); }

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--purple-soft);
  border-radius: 999px;
  padding: 5px;
  margin-bottom: 22px;
}
.tabs button {
  border: 0;
  border-radius: 999px;
  padding: 12px;
  font-weight: 900;
  background: transparent;
  color: var(--muted);
}
.tabs button.active {
  background: white;
  color: var(--primary-dark);
  box-shadow: 0 8px 20px rgba(49,34,83,0.08);
}

.auth-form h2, .form-card h2, .dashboard-top h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.1rem);
  letter-spacing: -0.055em;
}
label {
  display: block;
  margin: 16px 0 8px;
  font-weight: 850;
}
input, textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255,255,255,0.9);
  color: var(--text);
  outline: none;
  padding: 14px;
}
textarea { min-height: 110px; resize: vertical; }
input:focus, textarea:focus, select:focus {
  border-color: rgba(109,74,255,0.46);
  box-shadow: 0 0 0 4px rgba(109,74,255,0.1);
}

.message { color: #b42318; min-height: 22px; }
.hidden { display: none !important; }

.chip-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}
.chip {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,0.74);
  padding: 9px 12px;
  color: var(--muted);
  font-weight: 800;
}
.chip.selected {
  color: var(--primary-dark);
  background: var(--purple-soft);
  border-color: rgba(109,74,255,0.22);
}

.dashboard-top {
  margin: 42px 0 18px;
  padding: 24px;
  border-radius: 32px;
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.dashboard-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 18px;
  align-items: start;
}
.main-column { min-width: 0; }
.side-column {
  display: grid;
  gap: 18px;
  position: sticky;
  top: 96px;
}
.panel { padding: 20px; }
.panel-head, .form-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}
.panel-head h3 { margin: 0; }

.activity-list {
  margin-top: 14px;
  display: grid;
  gap: 14px;
}
.activity-card {
  padding: 20px;
}
.activity-card h3 {
  margin: 12px 0 8px;
  font-size: 1.28rem;
  letter-spacing: -0.035em;
}
.activity-card p { margin: 0; }
.meta {
  margin: 14px 0;
  display: grid;
  gap: 7px;
  color: var(--muted);
}
.badge {
  background: var(--purple-soft);
  color: var(--primary-dark);
}
.tier.easy { color: #047857; background: #d1fae5; }
.tier.medium { color: #92400e; background: #fef3c7; }
.tier.hard { color: #be123c; background: #ffe4e6; }
.tier.legendary { color: var(--primary-dark); background: #ede9fe; }

.stack {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}
.notification-item, .participant-card, .request-card, .message-row {
  padding: 14px;
  border-radius: 18px;
  background: rgba(255,248,241,0.72);
  border: 1px solid var(--line);
}
.notification-item {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}
.notification-item.unread {
  border-color: rgba(109,74,255,0.25);
  background: #f7f3ff;
}
.notification-item p { margin-top: 4px; }

.profile-mini-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.avatar-box {
  width: 54px;
  height: 54px;
  border-radius: 20px;
  display: grid;
  place-items: center;
  background: var(--purple-soft);
  font-size: 1.5rem;
}
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.detail-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
  margin: 44px 0;
}
.detail-main, .detail-side { padding: 22px; }
.detail-main h2 {
  margin: 14px 0 10px;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 0.95;
  letter-spacing: -0.07em;
}
.lock-box {
  background: var(--purple-soft);
  border: 1px solid rgba(109,74,255,0.14);
  border-radius: 20px;
  padding: 15px;
  margin: 18px 0;
}
.participant-card, .request-card {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}
.person {
  display: flex;
  align-items: center;
  gap: 10px;
}
.person .avatar {
  width: 42px;
  height: 42px;
  border-radius: 15px;
  background: var(--purple-soft);
  display: grid;
  place-items: center;
}
.chat-box {
  margin-top: 16px;
  border: 1px solid var(--line);
  border-radius: 22px;
  overflow: hidden;
  background: white;
}
.messages {
  height: 260px;
  overflow: auto;
  padding: 14px;
  display: grid;
  gap: 10px;
}
.message-row strong { display: block; margin-bottom: 4px; }
.chat-form {
  border-top: 1px solid var(--line);
  padding: 12px;
  display: flex;
  gap: 10px;
}
.chat-form input { border-radius: 999px; }

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: min(390px, calc(100% - 36px));
  z-index: 100;
  border-radius: 22px;
  padding: 16px;
  background: #221a2f;
  color: white;
  box-shadow: var(--shadow);
}
.toast p { color: rgba(255,255,255,0.78); }

.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(34,26,47,0.26);
  backdrop-filter: blur(3px);
  z-index: 70;
}
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(330px, 88vw);
  height: 100vh;
  background: #fffdf9;
  box-shadow: -24px 0 80px rgba(49,34,83,0.2);
  z-index: 80;
  transform: translateX(105%);
  transition: transform 0.22s ease;
  padding: 18px;
  display: flex;
  flex-direction: column;
}
.mobile-drawer.open { transform: translateX(0); }
.drawer-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.drawer-profile {
  margin: 22px 0;
  padding: 16px;
  border-radius: 22px;
  background: var(--bg);
  border: 1px solid var(--line);
}
.drawer-links {
  display: grid;
  gap: 10px;
}
.drawer-links button {
  border: 1px solid var(--line);
  background: white;
  border-radius: 16px;
  padding: 14px;
  text-align: left;
  font-weight: 850;
}
.mobile-only, .mobile-notifications, .mobile-scroll-note { display: none; }

.empty { color: var(--muted); margin: 0; }

@media (max-width: 860px) {
  .navbar, .shell { width: calc(100% - 20px); }
  .desktop-nav, .desktop-side { display: none !important; }
  .mobile-only { display: grid; }
  .hero, .feature-grid, .dashboard-layout, .detail-layout, .two-col {
    grid-template-columns: 1fr;
  }
  .hero {
    min-height: auto;
    border-radius: 30px;
    padding: 28px 20px;
  }
  .hero h1 { font-size: clamp(2.55rem, 14vw, 4rem); }
  .preview-card.small-card { margin-left: 0; }
  .dashboard-top {
    margin-top: 26px;
    flex-direction: column;
    align-items: flex-start;
    border-radius: 26px;
  }
  .dashboard-actions { width: 100%; }
  .dashboard-actions button { flex: 1; }
  .mobile-scroll-note {
    display: block;
    color: var(--muted);
    margin: -4px 0 14px;
    font-weight: 800;
  }
  .mobile-notifications { display: block; margin-top: 18px; }
  .activity-list {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: 4px 4px 12px;
    margin-left: -4px;
    margin-right: -4px;
  }
  .activity-card {
    min-width: 86%;
    scroll-snap-align: start;
  }
  .detail-main, .detail-side, .form-card, .auth-card, .panel {
    border-radius: 22px;
  }
  .notification-item, .participant-card, .request-card {
    align-items: flex-start;
    flex-direction: column;
  }
}

/* V5 image polish */
.activity-card {
  overflow: hidden;
  padding: 0;
}
.activity-card > .panel-head,
.activity-card > h3,
.activity-card > p,
.activity-card > .meta,
.activity-card > .card-actions {
  margin-left: 18px;
  margin-right: 18px;
}
.activity-card > .panel-head {
  margin-top: 16px;
}
.activity-card > .card-actions {
  margin-bottom: 18px;
}
.activity-image {
  height: 172px;
  position: relative;
  background-size: cover;
  background-position: center;
  border-radius: 22px;
  margin: 10px;
  overflow: hidden;
}
.image-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.04), rgba(0,0,0,0.34));
}
.image-label {
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: 7px 11px;
  border-radius: 999px;
  color: white;
  background: rgba(34,26,47,0.46);
  backdrop-filter: blur(12px);
  font-size: 0.78rem;
  font-weight: 900;
}
.detail-cover {
  margin-top: 18px;
  height: 280px;
  border-radius: 24px;
  background-size: cover;
  background-position: center;
  box-shadow: inset 0 -60px 90px rgba(0,0,0,0.14);
}
.image-preview {
  overflow: hidden;
  padding: 0;
}
.preview-image {
  height: 210px;
  background-image: url("https://images.unsplash.com/photo-1551632811-561732d1e306?auto=format&fit=crop&w=1200&q=80");
  background-size: cover;
  background-position: center;
}
.preview-content {
  padding: 22px;
}
.activity-card h3 {
  font-size: 1.36rem;
}
.panel, .activity-card, .detail-main, .detail-side, .form-card, .auth-card {
  border-color: rgba(34, 26, 47, 0.085);
}
@media (max-width: 860px) {
  .activity-image {
    height: 220px;
  }
  .detail-cover {
    height: 220px;
  }
}


/* V6 My Activities + edit/delete polish */
.my-activities-section {
  margin-bottom: 26px;
}
.explore-head {
  margin-top: 8px;
}
.my-activity-list {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}
.my-activity-card {
  display: grid;
  grid-template-columns: 112px 1fr;
  gap: 14px;
  padding: 10px;
  border-radius: 22px;
  background: var(--card-solid);
  border: 1px solid var(--line);
  box-shadow: 0 12px 42px rgba(49, 34, 83, 0.08);
}
.my-activity-thumb {
  min-height: 112px;
  border-radius: 18px;
  background-size: cover;
  background-position: center;
}
.my-activity-info {
  min-width: 0;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
}
.my-activity-info h4 {
  margin: 8px 0 5px;
  font-size: 1.05rem;
  letter-spacing: -0.025em;
}
.my-activity-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.empty-card {
  border-radius: 22px;
  border: 1px dashed rgba(109, 74, 255, 0.24);
  background: rgba(255, 255, 255, 0.68);
  padding: 18px;
}
.creator-tools {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 16px 0;
}
.edit-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}
.edit-actions .primary-btn {
  flex: 1;
}
@media (max-width: 860px) {
  .my-activity-card {
    grid-template-columns: 1fr;
  }
  .my-activity-thumb {
    height: 170px;
  }
  .my-activity-info {
    align-items: flex-start;
    flex-direction: column;
  }
  .my-activity-actions {
    width: 100%;
    justify-content: flex-start;
  }
  .my-activity-actions button {
    flex: 1;
  }
  .edit-actions {
    flex-direction: column;
  }
}