/* ═══════════════════════════════════════════
   HANGUL HANGOVER — Social Feed Styles
   ═══════════════════════════════════════════ */

:root {
  --pink-neon: #ff2d78;
  --pink-light: #ff6ba6;
  --pink-glow: #ff2d7840;
  --purple-deep: #0d0015;
  --purple-mid: #1a0a2e;
  --purple-accent: #9b59ff;
  --blue-electric: #00d4ff;
  --bg: #1a0a2e;
  --surface-1: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.07);
  --surface-hover: rgba(255, 255, 255, 0.10);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.18);
  --text-primary: #f0e6ff;
  --text-secondary: rgba(240, 230, 255, 0.65);
  --text-muted: rgba(240, 230, 255, 0.4);
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --font-main: 'Outfit', 'Noto Sans KR', sans-serif;
  --topbar-h: 56px;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  min-height: 100dvh;
  font-family: var(--font-main);
  background-color: var(--bg);
  color: var(--text-primary);
  overflow-x: hidden;
  overscroll-behavior: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }
.hidden { display: none !important; }

/* ── Particles background ── */
.bg-particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.particle {
  position: absolute;
  border-radius: 50%;
  opacity: 0;
  animation: floatParticle linear infinite;
}

@keyframes floatParticle {
  0%   { opacity: 0; transform: translateY(100vh) scale(0); }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { opacity: 0; transform: translateY(-10vh) scale(1); }
}

/* ════════════ TOPBAR ════════════ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(26, 10, 46, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding-top: env(safe-area-inset-top);
}

.topbar-inner {
  max-width: 600px;
  margin: 0 auto;
  height: var(--topbar-h);
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
  user-select: none;
}

.brand-hangul {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: 2px;
  background: linear-gradient(135deg, var(--pink-neon), var(--purple-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 12px var(--pink-glow));
}

.brand-hangover {
  font-size: 0.7rem;
  font-weight: 300;
  letter-spacing: 4px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.topbar-actions {
  display: flex;
  gap: 4px;
  align-items: center;
}

.icon-btn {
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, color 0.2s;
}

.icon-btn:hover {
  background: var(--surface-hover);
  color: var(--pink-light);
}

.notif-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  background: var(--pink-neon);
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 12px var(--pink-glow);
}

.mini-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--border-strong);
  background-image: linear-gradient(to bottom right, var(--pink-neon) 0%, var(--purple-accent) 100%);
  background-size: 130% 130%;
  background-position: center center;
  display: block;
}

/* ════════════ APP SHELL ════════════ */
.app-shell {
  position: relative;
  z-index: 1;
  max-width: 600px;
  margin: 0 auto;
  padding: 12px 12px;
  padding-bottom: max(48px, env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ════════════ FLOATING UPDATE BUTTON ════════════ */
.update-feed-btn {
  position: sticky;
  top: calc(var(--topbar-h) + env(safe-area-inset-top) + 8px);
  z-index: 30;
  align-self: center;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 999px;
  border: none;
  background: linear-gradient(135deg, var(--pink-neon), #d926a9);
  color: white;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 20px rgba(255, 45, 120, 0.5);
  transition: transform 0.15s, box-shadow 0.2s;
  animation: slideDown 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.update-feed-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(255, 45, 120, 0.65);
}

.update-feed-btn:active {
  transform: translateY(0) scale(0.97);
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ════════════ AVATAR ════════════ */
.avatar {
  border-radius: 50%;
  flex-shrink: 0;
  background-image: linear-gradient(to bottom right, var(--pink-neon) 0%, var(--purple-accent) 100%);
  background-size: 130% 130%;
  background-position: center center;
  border: 1px solid var(--border-strong);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.avatar-sm { width: 28px; height: 28px; }
.avatar-md { width: 42px; height: 42px; }
.avatar-lg { width: 68px; height: 68px; }

/* ════════════ COMPOSER ════════════ */
.composer {
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 14px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.3s;
}

.composer:focus-within {
  border-color: var(--pink-glow);
  box-shadow: 0 0 0 1px var(--pink-glow);
}

.composer-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.composer-body {
  flex: 1;
  min-width: 0;
}

.composer-input {
  width: 100%;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1rem;
  outline: none;
  resize: none;
  padding: 6px 0;
  line-height: 1.5;
  min-height: 44px;
  overflow: hidden;
}

.composer-input::placeholder {
  color: var(--text-muted);
}

.composer-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border-subtle);
}

.composer-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.mode-toggle {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--pink-light);
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
  transition: background 0.2s, border-color 0.2s;
  flex-shrink: 0;
}

.mode-toggle:hover {
  background: rgba(255, 45, 120, 0.12);
  border-color: var(--pink-neon);
}

.mode-toggle.active {
  background: rgba(255, 45, 120, 0.18);
  border-color: var(--pink-neon);
  color: white;
}

.char-count {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  flex-shrink: 0;
}

.char-count.over { color: var(--pink-neon); }

/* draw controls inline in footer */
.draw-inline-tools {
  display: flex;
  align-items: center;
  gap: 8px;
}

.color-picker-wrapper {
  position: relative;
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}

.color-preview {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--pink-neon);
  border: 2px solid var(--border-strong);
}

.color-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
  border-radius: 50%;
}

.clear-btn {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
}

.clear-btn:hover {
  background: rgba(255, 60, 60, 0.15);
  color: #ff6b6b;
  border-color: rgba(255, 60, 60, 0.3);
}

.post-btn {
  padding: 10px 22px;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--pink-neon), #d926a9);
  color: white;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: lowercase;
  transition: transform 0.15s, box-shadow 0.2s, opacity 0.2s;
  box-shadow: 0 4px 16px rgba(255, 45, 120, 0.3);
  min-width: 90px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.post-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(255, 45, 120, 0.45);
}

.post-btn:active:not(:disabled) {
  transform: translateY(0) scale(0.97);
}

.post-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.spinner {
  animation: spin 1s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Draw section ── */
.draw-section {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.canvas-container {
  width: 100%;
  max-width: 220px;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: #fff;
}

.canvas-container canvas {
  width: 100% !important;
  height: 100% !important;
  cursor: crosshair;
  touch-action: none;
  display: block;
}

/* ════════════ FEED ════════════ */
.feed {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.post {
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 12px;
  display: flex;
  gap: 10px;
  transition: border-color 0.3s, background 0.3s;
  animation: postFadeIn 0.4s ease-out;
}

@keyframes postFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.post.is-mine {
  border-color: rgba(255, 45, 120, 0.25);
}

.post:hover {
  border-color: var(--border-strong);
  background: var(--surface-2);
}

.post-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.post-header {
  display: flex;
  align-items: baseline;
  gap: 7px;
  flex-wrap: wrap;
}

.post-author {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.9rem;
}

.post-time {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.post-mine-tag {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--pink-light);
  background: rgba(255, 45, 120, 0.12);
  padding: 2px 6px;
  border-radius: 4px;
}

.post-content {
  font-size: 0.97rem;
  line-height: 1.45;
  word-break: break-word;
  white-space: pre-wrap;
  color: var(--text-primary);
}

.post-drawing {
  max-width: 180px;
  width: 100%;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-md);
  background: #fff;
  margin-top: 4px;
  border: 1px solid var(--border-subtle);
  object-fit: cover;
  display: block;
}

.post-actions {
  display: flex;
  gap: 2px;
  margin-top: 4px;
}

.action-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 7px 10px;
  border-radius: 999px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 600;
  transition: background 0.2s, color 0.2s;
  min-height: 36px;
}

.action-btn:hover {
  background: rgba(255, 45, 120, 0.1);
  color: var(--pink-light);
}

.action-btn.liked { color: var(--pink-neon); }
.action-btn.liked svg { fill: var(--pink-neon); }
.action-btn .count { font-variant-numeric: tabular-nums; }

/* ── Inline replies / thread ── */
.replies-section {
  margin-top: 6px;
  padding-top: 8px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 0;
}

.reply-thread {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.thread-item {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  padding: 6px 0;
  position: relative;
}

/* vertical connector line between replies */
.thread-item:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 13px;
  top: 34px;
  bottom: 0;
  width: 2px;
  background: var(--border-subtle);
}

.reply-body {
  flex: 1;
  min-width: 0;
}

.reply-header {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 2px;
  flex-wrap: wrap;
}

.reply-author {
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--text-primary);
}

.reply-time {
  font-size: 0.68rem;
  color: var(--text-muted);
}

.reply-content {
  font-size: 0.88rem;
  line-height: 1.35;
  word-break: break-word;
  white-space: pre-wrap;
  color: var(--text-secondary);
}

/* reply composer always visible */
.reply-composer {
  display: flex;
  gap: 7px;
  align-items: center;
  padding-top: 8px;
  margin-top: 2px;
}

.reply-composer .reply-input {
  flex: 1;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  padding: 8px 14px;
  color: var(--text-primary);
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
  min-height: 36px;
}

.reply-composer .reply-input:focus {
  border-color: var(--pink-neon);
  background: rgba(255, 255, 255, 0.06);
}

.reply-send {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--pink-neon), #d926a9);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: opacity 0.2s, transform 0.15s;
}

.reply-send:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.reply-send:not(:disabled):hover {
  transform: scale(1.08);
}

/* ════════════ SEEN POSTS ACCORDION ════════════ */
.seen-section {
  margin-top: 4px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.seen-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: lowercase;
  letter-spacing: 0.5px;
  transition: background 0.2s, color 0.2s;
  width: 100%;
  min-height: 48px;
}

.seen-toggle:hover {
  background: var(--surface-2);
  color: var(--text-primary);
}

.seen-toggle-text { flex: 1; text-align: left; }

.seen-count {
  background: rgba(255, 45, 120, 0.15);
  color: var(--pink-light);
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.seen-chevron { transition: transform 0.3s; }
.seen-section.open .seen-chevron { transform: rotate(180deg); }

.seen-feed {
  display: flex;
  flex-direction: column;
  gap: 10px;
  opacity: 0.7;
}

.seen-feed .post { opacity: 0.85; }

.empty-feed {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
}

.empty-icon {
  display: block;
  font-size: 2rem;
  color: var(--pink-neon);
  filter: drop-shadow(0 0 16px var(--pink-glow));
  animation: emptyPulse 2s ease-in-out infinite;
  margin-bottom: 8px;
}

@keyframes emptyPulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.15); opacity: 1; }
}

/* ════════════ MODALS (shared) ════════════ */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(10, 0, 20, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.modal-card {
  width: 100%;
  max-width: 420px;
  background: rgba(22, 8, 40, 0.97);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 60px rgba(255, 45, 120, 0.12);
  animation: cardRise 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  max-height: 90dvh;
  overflow-y: auto;
}

@keyframes cardRise {
  from { opacity: 0; transform: translateY(24px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h2 {
  font-size: 1rem;
  font-weight: 700;
  text-transform: lowercase;
  letter-spacing: 1px;
  color: var(--text-primary);
}

.modal-close {
  color: var(--text-muted);
  width: 36px;
  height: 36px;
}

/* ════════════ TERMS MODAL ════════════ */
.terms-card { max-width: 480px; }

.terms-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.terms-body h3 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--pink-light);
  margin-top: 4px;
}

.terms-body p, .terms-body ul { color: var(--text-secondary); }

.terms-body ul {
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.terms-body strong { color: var(--text-primary); }

/* ════════════ PROFILE MODAL ════════════ */
.profile-card { max-width: 360px; }

.profile-hero {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 8px 0 4px;
}

.profile-info { display: flex; flex-direction: column; gap: 4px; }

.profile-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.profile-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.profile-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.profile-action-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 13px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--surface-1);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-weight: 600;
  text-align: left;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.profile-action-btn:hover {
  background: var(--surface-2);
  border-color: var(--border-strong);
  color: var(--pink-light);
}

.profile-action-btn.danger:hover {
  background: rgba(255, 60, 60, 0.1);
  border-color: rgba(255, 80, 80, 0.4);
  color: #ff6b6b;
}

/* ════════════ ONBOARDING ════════════ */
.onboarding-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: fadeIn 0.4s ease-out;
}

.onboarding-card {
  width: 100%;
  max-width: 420px;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 60px rgba(255, 45, 120, 0.15);
  animation: cardRise 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  max-height: 90dvh;
  overflow-y: auto;
}

.onboarding-header { text-align: center; }

.logo-hangul {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: 4px;
  background: linear-gradient(135deg, var(--pink-neon), var(--purple-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 20px var(--pink-glow));
  line-height: 1;
}

.logo-hangover {
  font-size: 0.82rem;
  letter-spacing: 8px;
  color: var(--text-secondary);
  font-weight: 300;
  text-transform: uppercase;
  margin-top: 2px;
}

.onboarding-subtitle {
  margin-top: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.input-field {
  width: 100%;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
  -webkit-appearance: none;
}

.input-field::placeholder { color: var(--text-muted); }

.field-hint {
  font-size: 0.72rem;
  color: var(--text-muted);
  padding-left: 2px;
}

.name-error {
  font-size: 0.78rem;
  font-weight: 600;
  color: #ff6b6b;
  padding-left: 2px;
  animation: fadeIn 0.2s ease-out;
}

.input-field:focus {
  border-color: var(--pink-neon);
  box-shadow: 0 0 0 3px var(--pink-glow);
  background: rgba(255, 255, 255, 0.06);
}

/* avatar builder */
.avatar-builder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.avatar-preview {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background-image: linear-gradient(to bottom right, #ff2d78 0%, #9b59ff 100%);
  background-size: 130% 130%;
  background-position: center center;
  border: 2px solid var(--border-strong);
  box-shadow: 0 0 32px rgba(255, 45, 120, 0.35);
}

/* color blend row: ● + ● */
.color-blend-row {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
}

.blend-plus {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-muted);
  user-select: none;
  line-height: 1;
}

.color-swatch-label {
  position: relative;
  width: 44px;
  height: 44px;
  cursor: pointer;
}

.swatch-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid var(--border-strong);
  background: var(--pink-neon);
  transition: transform 0.15s, box-shadow 0.2s;
}

.color-swatch-label:hover .swatch-circle {
  transform: scale(1.08);
  box-shadow: 0 0 12px rgba(255, 45, 120, 0.4);
}

.color-swatch-label input[type="color"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
  border-radius: 50%;
}

/* terms checkbox */
.terms-check-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 2px 0;
}

.terms-check-label input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--pink-neon);
  cursor: pointer;
  flex-shrink: 0;
  border-radius: 4px;
}

.terms-link {
  background: none;
  border: none;
  color: var(--pink-light);
  font-size: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
  display: inline;
}

.terms-link:hover { color: var(--pink-neon); }

.submit-btn {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--pink-neon), #d926a9);
  color: white;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  transition: transform 0.15s, box-shadow 0.3s, opacity 0.2s;
  box-shadow: 0 4px 20px rgba(255, 45, 120, 0.3);
}

.submit-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  box-shadow: none;
}

.submit-btn:not(:disabled):hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255, 45, 120, 0.5);
}

.submit-btn:not(:disabled):active { transform: translateY(0); }

/* ════════════ NOTIFICATIONS DRAWER ════════════ */
.notif-drawer {
  position: fixed;
  top: 0;
  right: 0;
  height: 100dvh;
  width: min(400px, 100vw);
  z-index: 110;
  background: rgba(20, 8, 38, 0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-left: 1px solid var(--border-strong);
  display: flex;
  flex-direction: column;
  transform: translateX(0);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  padding-top: env(safe-area-inset-top);
}

.notif-drawer.hidden {
  display: flex !important;
  transform: translateX(100%);
  pointer-events: none;
}

.notif-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.notif-header h2 {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: lowercase;
}

.notif-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.notif-item {
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.88rem;
}

.notif-item.unread {
  border-color: rgba(255, 45, 120, 0.4);
  background: rgba(255, 45, 120, 0.08);
}

.notif-line {
  display: flex;
  align-items: center;
  gap: 8px;
}

.notif-line svg { color: var(--pink-light); }

.notif-context {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-style: italic;
  border-left: 2px solid var(--border-subtle);
  padding-left: 8px;
  margin-top: 4px;
}

.notif-empty {
  text-align: center;
  color: var(--text-muted);
  padding: 40px 20px;
  font-size: 0.9rem;
}

.drawer-backdrop {
  position: fixed;
  inset: 0;
  z-index: 105;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  animation: fadeIn 0.25s ease-out;
}

/* ════════════ TOAST ════════════ */
.toast {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(20, 10, 40, 0.95);
  border: 1px solid var(--pink-neon);
  border-radius: 999px;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 0 30px rgba(255, 45, 120, 0.4);
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  white-space: nowrap;
}

.toast.hidden { display: flex; }

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast-icon { font-size: 1.1rem; color: var(--pink-neon); }
.toast-text { font-size: 0.85rem; font-weight: 600; letter-spacing: 0.5px; }

/* ════════════ MOBILE OPTIMIZATIONS ════════════ */
@media (max-width: 600px) {
  .app-shell { padding: 10px; gap: 10px; }
  .composer { padding: 12px; }
  .post { padding: 10px; gap: 8px; }
  .composer-input { font-size: 1rem; }
  .post-btn { padding: 10px 16px; min-width: 76px; }
  .canvas-container { max-width: 200px; }
  .post-drawing { max-width: 160px; }
  .mode-toggle { padding: 8px 10px; font-size: 0.8rem; }
  .char-count { font-size: 0.7rem; }

  .onboarding-card { padding: 20px 16px; gap: 16px; }
  .logo-hangul { font-size: 2rem; }

  .modal-card { padding: 16px; }
}

@media (max-width: 380px) {
  .canvas-container { max-width: 160px; }
  .post-drawing { max-width: 130px; }
}

/* ── Selection & scrollbar ── */
::selection { background: rgba(255, 45, 120, 0.35); color: white; }

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255, 45, 120, 0.3); border-radius: 4px; }