/* ============================================================
   WEDDING CHAT — STYLE
   ============================================================ */

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

:root {
  --bg-deep: #0f0720;
  --bg-dark: #160d2e;
  --bg-card: rgba(255,255,255,0.05);
  --bg-glass: rgba(255,255,255,0.07);
  --border: rgba(255,255,255,0.12);
  --gold: #d4a853;
  --gold-light: #f0c97a;
  --rose: #d47fa0;
  --rose-light: #f4b8d0;
  --lavender: #a078d4;
  --lavender-light: #c9acee;
  --text-primary: #f0e8ff;
  --text-secondary: rgba(240,232,255,0.6);
  --text-muted: rgba(240,232,255,0.35);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Inter', system-ui, sans-serif;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-top: env(safe-area-inset-top, 0px);
}

html, body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font-sans);
  background: var(--bg-deep);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

/* ============================================================
   SCREENS
   ============================================================ */
.screen {
  position: fixed;
  inset: 0;
  display: none;
  flex-direction: column;
  transition: opacity 0.4s ease, transform 0.4s ease;
  opacity: 0;
  transform: translateY(12px);
}
.screen.active {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   REGISTER SCREEN
   ============================================================ */
#register-screen {
  background: linear-gradient(145deg, #0f0720 0%, #1a0a2e 40%, #0d1530 100%);
  align-items: center;
  justify-content: center;
  padding: 16px;
  overflow-y: auto;
  padding-top: calc(var(--safe-top) + 16px);
  padding-bottom: calc(var(--safe-bottom) + 16px);
}

/* Floating petals */
.register-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.petal {
  position: absolute;
  top: -40px;
  left: var(--x);
  width: calc(16px * var(--s));
  height: calc(22px * var(--s));
  background: radial-gradient(ellipse at 40% 30%, rgba(212,167,160,0.7), rgba(212,120,160,0.3));
  border-radius: 50% 0 50% 50%;
  transform: rotate(-30deg);
  animation: fall 8s ease-in var(--d) infinite;
  filter: blur(1px);
}
@keyframes fall {
  0%   { top: -40px; transform: rotate(-30deg) translateX(0); opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 0.6; }
  100% { top: 110vh; transform: rotate(200deg) translateX(60px); opacity: 0; }
}

.register-card {
  width: 100%;
  max-width: 440px;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(212,168,83,0.15),
    0 32px 80px rgba(0,0,0,0.6),
    0 0 120px rgba(160,120,212,0.12) inset;
  animation: card-rise 0.6s cubic-bezier(0.34,1.56,0.64,1) both;
}
@keyframes card-rise {
  from { opacity: 0; transform: translateY(30px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.register-header {
  background: linear-gradient(160deg, rgba(212,168,83,0.15), rgba(160,120,212,0.1));
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding: 36px 32px 28px;
  text-align: center;
}

.rings-icon {
  font-size: 48px;
  margin-bottom: 12px;
  animation: float 3s ease-in-out infinite;
}
@keyframes float {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}

.couple-names {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 300;
  letter-spacing: 0.02em;
  background: linear-gradient(135deg, var(--gold-light), var(--rose-light), var(--lavender-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: 6px;
}

.wedding-date {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 15px;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
}

.divider-ornament {
  margin-top: 16px;
  font-size: 20px;
  color: var(--gold);
  opacity: 0.7;
}

.register-body {
  padding: 28px 32px 32px;
}

.welcome-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
  text-align: center;
}

.field-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 10px;
}

/* Avatar Grid */
.avatar-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-bottom: 24px;
}
.avatar-btn {
  aspect-ratio: 1;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.05);
  font-size: 22px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.avatar-btn:hover {
  background: rgba(255,255,255,0.1);
  transform: scale(1.1);
}
.avatar-btn.selected {
  border-color: var(--gold);
  background: rgba(212,168,83,0.15);
  box-shadow: 0 0 16px rgba(212,168,83,0.3);
  transform: scale(1.12);
}

/* Text Input */
.input-wrap {
  position: relative;
  margin-bottom: 8px;
}
.text-input {
  width: 100%;
  padding: 14px 16px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px; /* 16px prevents iOS zoom */
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.text-input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(212,168,83,0.18);
}
.text-input::placeholder {
  color: var(--text-muted);
}

.error-msg {
  font-size: 13px;
  color: #f08080;
  min-height: 20px;
  margin-bottom: 16px;
  text-align: center;
}

/* Join Button */
.join-btn {
  width: 100%;
  padding: 16px 24px;
  background: linear-gradient(135deg, var(--gold), #c99040, var(--lavender));
  border: none;
  border-radius: var(--radius-md);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.25s ease;
  box-shadow: 0 8px 30px rgba(160,120,212,0.35), 0 2px 8px rgba(212,168,83,0.25);
  text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}
.join-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(160,120,212,0.45), 0 4px 12px rgba(212,168,83,0.3);
}
.join-btn:active {
  transform: translateY(0);
}
.btn-icon {
  transition: transform 0.2s;
}
.join-btn:hover .btn-icon {
  transform: translateX(4px);
}

/* ============================================================
   CHAT SCREEN
   ============================================================ */
#chat-screen {
  background: linear-gradient(160deg, #0f0720 0%, #130a24 100%);
}

/* Header */
.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  padding-top: calc(var(--safe-top) + 12px);
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.header-left { display: flex; flex-direction: column; gap: 2px; }
.header-couple {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 400;
  background: linear-gradient(90deg, var(--gold-light), var(--rose-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 0.02em;
}
.header-sub {
  font-size: 12px;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}

.header-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-shrink: 0;
}

.faq-btn {
  padding: 6px 14px;
  border: 1px solid rgba(212,168,83,0.45);
  border-radius: 20px;
  background: rgba(212,168,83,0.1);
  color: var(--gold-light);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}
.faq-btn:hover, .faq-btn[aria-expanded="true"] {
  background: rgba(212,168,83,0.2);
  box-shadow: 0 0 12px rgba(212,168,83,0.25);
}

.leave-btn {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  color: var(--text-secondary);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
}
.leave-btn:hover {
  background: rgba(255,255,255,0.12);
  color: var(--text-primary);
}

/* ============================================================
   FAQ OVERLAY / BLADE
   ============================================================ */
.faq-overlay {
  position: fixed;
  inset: 0;
  z-index: 800;
  background: rgba(10,4,24,0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  animation: overlay-in 0.3s ease both;
}
.faq-overlay[hidden] { display: none !important; }

@keyframes overlay-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.faq-blade {
  width: 100%;
  max-width: 580px;
  max-height: 82vh;
  display: flex;
  flex-direction: column;
  background: rgba(18, 8, 36, 0.97);
  border: 1px solid rgba(255,255,255,0.12);
  border-bottom: none;
  border-radius: 28px 28px 0 0;
  box-shadow:
    0 -8px 60px rgba(0,0,0,0.7),
    0 0 0 1px rgba(212,168,83,0.12) inset;
  animation: blade-up 0.4s cubic-bezier(0.34,1.2,0.64,1) both;
  overflow: hidden;
}
@keyframes blade-up {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}

.faq-blade-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  background: linear-gradient(135deg, rgba(212,168,83,0.1), rgba(160,120,212,0.08));
  flex-shrink: 0;
}
.faq-blade-title {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 400;
  letter-spacing: 0.04em;
  background: linear-gradient(90deg, var(--gold-light), var(--rose-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.faq-blade-sub {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin-top: 2px;
}

.faq-close {
  width: 34px;
  height: 34px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  color: var(--text-secondary);
  font-size: 15px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
}
.faq-close:hover {
  background: rgba(255,255,255,0.12);
  color: var(--text-primary);
}

.faq-blade-body {
  overflow-y: auto;
  padding: 8px 0 calc(var(--safe-bottom) + 24px);
  flex: 1;
}
.faq-blade-body::-webkit-scrollbar { width: 4px; }
.faq-blade-body::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }

/* Accordion items */
.faq-item {
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.faq-item:last-of-type { border-bottom: none; }

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 24px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: background 0.2s;
  line-height: 1.4;
}
.faq-question:hover {
  background: rgba(255,255,255,0.04);
}
.faq-question[aria-expanded="true"] {
  color: var(--gold-light);
}

.faq-chevron {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: transform 0.3s ease;
  color: var(--text-muted);
}
.faq-question[aria-expanded="true"] .faq-chevron {
  transform: rotate(180deg);
  color: var(--gold);
}

.faq-answer {
  padding: 0 24px 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  animation: answer-drop 0.3s ease both;
}
.faq-answer[hidden] { display: none !important; }

@keyframes answer-drop {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.faq-answer p { margin-bottom: 10px; }
.faq-answer p:last-child { margin-bottom: 0; }
.faq-answer ul {
  margin: 10px 0 0 0;
  padding-left: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.faq-answer li {
  padding: 10px 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.5;
}
.faq-answer strong { color: var(--text-primary); font-weight: 600; }

.faq-zola-link {
  padding: 20px 24px 8px;
  text-align: center;
}
.faq-zola-link a {
  font-size: 13px;
  color: var(--lavender-light);
  text-decoration: none;
  opacity: 0.8;
  transition: opacity 0.2s;
}
.faq-zola-link a:hover { opacity: 1; text-decoration: underline; }

/* Messages */
.messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  scroll-behavior: smooth;
  overscroll-behavior: contain;
}
.messages::-webkit-scrollbar { width: 4px; }
.messages::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 4px; }

/* Message bubbles */
.msg-row {
  display: flex;
  gap: 10px;
  align-items: flex-end;
  animation: msg-in 0.3s cubic-bezier(0.34,1.3,0.64,1) both;
}
@keyframes msg-in {
  from { opacity: 0; transform: translateY(8px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.msg-row.own {
  flex-direction: row-reverse;
}

.msg-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.msg-content {
  max-width: min(72%, 380px);
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.msg-name {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  padding: 0 4px;
}

.msg-row.own .msg-name {
  text-align: right;
}

.msg-bubble {
  padding: 10px 14px;
  border-radius: 18px;
  font-size: 15px;
  line-height: 1.5;
  word-break: break-word;
  position: relative;
  cursor: default;
}

/* Others' bubbles */
.msg-row:not(.own) .msg-bubble {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.1);
  border-bottom-left-radius: 4px;
  color: var(--text-primary);
}

/* Own bubbles */
.msg-row.own .msg-bubble {
  background: linear-gradient(135deg, rgba(212,168,83,0.28), rgba(160,120,212,0.25));
  border: 1px solid rgba(212,168,83,0.35);
  border-bottom-right-radius: 4px;
  color: var(--text-primary);
}

.msg-time {
  font-size: 10px;
  color: var(--text-muted);
  padding: 0 4px;
}
.msg-row.own .msg-time { text-align: right; }

/* Reaction pip */
.msg-reaction {
  position: absolute;
  bottom: -8px;
  right: 6px;
  background: rgba(30,15,50,0.9);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 20px;
  padding: 2px 6px;
  font-size: 12px;
  pointer-events: none;
  animation: pop 0.3s cubic-bezier(0.34,1.56,0.64,1) both;
}
@keyframes pop { from { transform: scale(0); } to { transform: scale(1); } }

/* System messages */
.msg-system {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  font-style: italic;
  padding: 6px 0;
  animation: msg-in 0.3s ease both;
}
.msg-system span {
  display: inline-block;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px;
  padding: 4px 14px;
}

/* Date separator */
.date-sep {
  text-align: center;
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 8px 0;
}
.date-sep span {
  background: rgba(212,168,83,0.1);
  border: 1px solid rgba(212,168,83,0.2);
  border-radius: 20px;
  padding: 3px 14px;
  color: var(--gold);
}

/* Typing indicator */
.typing-bar {
  min-height: 22px;
  padding: 0 20px;
  font-size: 12px;
  color: var(--text-muted);
  font-style: italic;
  flex-shrink: 0;
  transition: opacity 0.3s;
}

/* ============================================================
   INPUT AREA
   ============================================================ */
.chat-input-area {
  padding: 10px 16px;
  padding-bottom: calc(var(--safe-bottom) + 10px);
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.input-row {
  display: flex;
  gap: 10px;
  align-items: flex-end;
}

.my-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(212,168,83,0.15);
  border: 1px solid rgba(212,168,83,0.35);
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.message-input-wrap {
  flex: 1;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 22px;
  padding: 0 16px;
  transition: border-color 0.2s, box-shadow 0.2s;
  display: flex;
  align-items: center;
}
.message-input-wrap:focus-within {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(212,168,83,0.15);
}
.message-input {
  width: 100%;
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px; /* 16px prevents iOS zoom */
  line-height: 1.4;
  resize: none;
  padding: 10px 0;
  max-height: 100px;
  overflow-y: auto;
}
.message-input::placeholder { color: var(--text-muted); }
.message-input::-webkit-scrollbar { display: none; }

.send-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--lavender));
  border: none;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s ease;
  box-shadow: 0 4px 16px rgba(160,120,212,0.4);
}
.send-btn svg {
  width: 18px;
  height: 18px;
}
.send-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(160,120,212,0.55);
}
.send-btn:active {
  transform: scale(0.95);
}
.send-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

/* ============================================================
   TOAST
   ============================================================ */
.toast {
  position: fixed;
  bottom: calc(var(--safe-bottom) + 80px);
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(30,15,50,0.95);
  border: 1px solid rgba(212,168,83,0.4);
  border-radius: 24px;
  padding: 10px 20px;
  font-size: 14px;
  color: var(--gold-light);
  pointer-events: none;
  opacity: 0;
  transition: all 0.3s ease;
  white-space: nowrap;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 1000;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ============================================================
   EMOJI PICKER
   ============================================================ */
.emoji-toggle-btn {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s, filter 0.2s;
  user-select: none;
  flex-shrink: 0;
}
.emoji-toggle-btn:hover {
  transform: scale(1.15);
  filter: drop-shadow(0 0 4px rgba(212, 168, 83, 0.4));
}
.emoji-picker-panel {
  position: absolute;
  bottom: 75px;
  right: 16px;
  left: 16px;
  background: rgba(22, 13, 46, 0.96);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6), 0 0 20px rgba(160, 120, 212, 0.1) inset;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  height: 280px;
  z-index: 10;
  animation: picker-pop 0.25s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
@keyframes picker-pop {
  from { opacity: 0; transform: translateY(10px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.emoji-picker-panel[hidden] {
  display: none !important;
}
.emoji-tabs {
  display: flex;
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 4px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.emoji-tabs::-webkit-scrollbar {
  display: none;
}
.emoji-tab-btn {
  flex: 1;
  background: none;
  border: none;
  font-size: 18px;
  padding: 10px 4px;
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: background-color 0.2s, transform 0.1s;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
}
.emoji-tab-btn:hover {
  background: rgba(255, 255, 255, 0.06);
}
.emoji-tab-btn.active {
  background: rgba(212, 168, 83, 0.15);
  border: 1px solid rgba(212, 168, 83, 0.3);
}
.emoji-grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(40px, 1fr));
  gap: 6px;
  padding: 12px;
  overflow-y: auto;
}
.emoji-item {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: background-color 0.15s, transform 0.1s;
  user-select: none;
}
.emoji-item:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: scale(1.15);
}
.emoji-item:active {
  transform: scale(0.95);
}

@media (min-width: 480px) {
  .emoji-picker-panel {
    left: auto;
    width: 320px;
    right: 16px;
  }
}

/* ============================================================
   SCROLL BOTTOM PILL
   ============================================================ */
.scroll-bottom-btn {
  position: absolute;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(30, 15, 50, 0.92);
  border: 1px solid var(--gold);
  border-radius: 20px;
  padding: 8px 18px;
  color: var(--gold-light);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5), 0 0 10px rgba(212, 168, 83, 0.3);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 50;
  animation: bounce-in 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) both;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: transform 0.2s, background 0.2s;
}
.scroll-bottom-btn:hover {
  background: rgba(45, 20, 75, 0.95);
  transform: translateX(-50%) translateY(-2px);
}
.scroll-bottom-btn[hidden] {
  display: none !important;
}
@keyframes bounce-in {
  from { opacity: 0; transform: translateX(-50%) translateY(12px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ============================================================
   MEDIA ATTACHMENTS & PREVIEW
   ============================================================ */
.media-attach-btn {
  background: none;
  border: none;
  font-size: 19px;
  cursor: pointer;
  padding: 4px 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s, filter 0.2s;
  user-select: none;
  flex-shrink: 0;
  color: var(--text-secondary);
}
.media-attach-btn:hover {
  transform: scale(1.15);
  filter: drop-shadow(0 0 4px rgba(212, 168, 83, 0.4));
  color: var(--gold-light);
}

.media-preview-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  margin-bottom: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(212, 168, 83, 0.3);
  border-radius: var(--radius-md);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  animation: picker-pop 0.25s ease both;
}
.media-preview-bar[hidden] {
  display: none !important;
}

.media-preview-thumb-wrap {
  position: relative;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.media-preview-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-preview-remove {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  font-size: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s;
}
.media-preview-remove:hover {
  background: var(--red);
}

.media-preview-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 12px;
  overflow: hidden;
}
#media-preview-name {
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}
#media-preview-size {
  color: var(--text-muted);
  font-size: 11px;
}

/* In-message media */
.msg-media-wrap {
  margin-top: 6px;
  border-radius: 12px;
  overflow: hidden;
  max-width: 100%;
}
.msg-media-img {
  max-width: 100%;
  max-height: 280px;
  border-radius: 12px;
  cursor: pointer;
  display: block;
  object-fit: cover;
  transition: transform 0.2s;
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.msg-media-img:hover {
  transform: scale(1.02);
}
.msg-media-video {
  max-width: 100%;
  max-height: 280px;
  border-radius: 12px;
  display: block;
  background: #000;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ============================================================
   MESSAGE REACTIONS
   ============================================================ */
.msg-reactions-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 4px;
  align-items: center;
}
.msg-row.own .msg-reactions-bar {
  justify-content: flex-end;
}

.reaction-badge {
  background: rgba(30, 15, 50, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 2px 8px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all 0.2s;
  user-select: none;
}
.reaction-badge:hover {
  border-color: var(--gold);
  background: rgba(50, 25, 80, 0.9);
  transform: scale(1.08);
}
.reaction-badge.active {
  background: rgba(212, 168, 83, 0.25);
  border-color: var(--gold);
  color: var(--gold-light);
}

.reaction-trigger-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  padding: 2px 6px;
  opacity: 0.6;
  border-radius: 12px;
  transition: all 0.2s;
}
.reaction-trigger-btn:hover {
  opacity: 1;
  color: var(--gold-light);
  background: rgba(255, 255, 255, 0.08);
}

.floating-reaction-picker {
  position: absolute;
  bottom: calc(100% + 6px);
  background: rgba(20, 10, 40, 0.96);
  border: 1px solid var(--border-gold);
  border-radius: 24px;
  padding: 4px 8px;
  display: flex;
  gap: 6px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 100;
  animation: picker-pop 0.2s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
.msg-row.own .floating-reaction-picker {
  right: 0;
}
.msg-row:not(.own) .floating-reaction-picker {
  left: 0;
}

.floating-reaction-btn {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 50%;
  transition: transform 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.floating-reaction-btn:hover {
  transform: scale(1.3);
}

/* ============================================================
   LIGHTBOX MODAL
   ============================================================ */
.lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(5, 2, 12, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: overlay-in 0.25s ease both;
}
.lightbox-modal[hidden] {
  display: none !important;
}

.lightbox-content {
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-content img,
.lightbox-content video {
  max-width: 100%;
  max-height: 85vh;
  border-radius: var(--radius-md);
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.8);
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border);
  color: #fff;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s;
}
.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* ============================================================
   SCROLLBAR (desktop)
   ============================================================ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 6px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 480px) {
  .register-card { border-radius: var(--radius-lg); }
  .register-header { padding: 28px 20px 20px; }
  .register-body { padding: 20px; }
  .couple-names { font-size: 26px; }
  .avatar-btn { font-size: 20px; }
  .msg-bubble { font-size: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  .petal, .rings-icon { animation: none; }
  .msg-row, .register-card { animation: none; }
}