/* ===================================
   Linktree Clone - Stylesheet
   =================================== */

/* ===== CSS Variables ===== */
:root {
  /* 배경 그라디언트 */
  --bg-gradient-start: #0f0c29;
  --bg-gradient-mid: #302b63;
  --bg-gradient-end: #24243e;
  
  /* 글래스모피즘 */
  --glass-bg: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.15);
  --glass-shadow: rgba(0, 0, 0, 0.3);
  
  /* 텍스트 */
  --text-primary: #ffffff;
  --text-secondary: #b8b8b8;
  --text-muted: #6b6b6b;
  
  /* 버튼 */
  --btn-bg: rgba(255, 255, 255, 0.12);
  --btn-hover: rgba(255, 255, 255, 0.22);
  --btn-active: rgba(255, 255, 255, 0.08);
  
  /* 액센트 */
  --accent: #6c63ff;
  --accent-glow: rgba(108, 99, 255, 0.4);
  
  /* 상태 */
  --online: #00d26a;
  --heart: #ff6b6b;
  
  /* 간격 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  
  /* 폰트 */
  --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  
  /* 반응형 */
  --card-max-width: 420px;
  --border-radius: 16px;
  --border-radius-sm: 12px;
  --border-radius-full: 50%;
  
  /* 애니메이션 */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ===== Background ===== */
.background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.background__gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    var(--bg-gradient-start) 0%,
    var(--bg-gradient-mid) 50%,
    var(--bg-gradient-end) 100%
  );
}

/* 미묘한 노이즈 텍스처 */
.background__noise {
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* 애니메이션 배경 원 (선택적 장식) */
.background::before,
.background::after {
  content: '';
  position: absolute;
  border-radius: var(--border-radius-full);
  filter: blur(80px);
  opacity: 0.3;
  animation: float 20s ease-in-out infinite;
}

.background::before {
  width: 400px;
  height: 400px;
  background: var(--accent);
  top: -200px;
  right: -100px;
}

.background::after {
  width: 300px;
  height: 300px;
  background: #ff6b6b;
  bottom: -150px;
  left: -100px;
  animation-delay: -10s;
}

@keyframes float {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  25% {
    transform: translate(30px, 30px) scale(1.1);
  }
  50% {
    transform: translate(-20px, 50px) scale(0.9);
  }
  75% {
    transform: translate(-40px, -20px) scale(1.05);
  }
}

/* ===== Container ===== */
.container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: var(--spacing-md);
}

/* ===== Card (글래스모피즘) ===== */
.card {
  width: 100%;
  max-width: var(--card-max-width);
  padding: var(--spacing-lg);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  box-shadow: 
    0 8px 32px var(--glass-shadow),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  animation: cardAppear 0.8s ease-out;
}

@keyframes cardAppear {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ===== Profile Section ===== */
.profile {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.profile__avatar-wrapper {
  position: relative;
  display: inline-block;
  margin-bottom: var(--spacing-sm);
}

.profile__avatar {
  width: 96px;
  height: 96px;
  border-radius: var(--border-radius-full);
  object-fit: cover;
  border: 3px solid var(--glass-border);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  transition: var(--transition-base);
}

.profile__avatar:hover {
  transform: scale(1.05);
  border-color: var(--accent);
  box-shadow: 0 4px 30px var(--accent-glow);
}

.profile__status {
  position: absolute;
  bottom: 4px;
  right: 4px;
  width: 16px;
  height: 16px;
  background: var(--online);
  border: 3px solid var(--bg-gradient-mid);
  border-radius: var(--border-radius-full);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(0, 210, 106, 0.4);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(0, 210, 106, 0);
  }
}

.profile__name {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  letter-spacing: -0.02em;
}

.profile__username {
  font-size: var(--font-size-sm);
  color: var(--accent);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.profile__bio {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  max-width: 280px;
  margin: 0 auto;
}

/* ===== Links Section ===== */
.links {
  margin-bottom: var(--spacing-lg);
}

.links__list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.link-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--btn-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-size: var(--font-size-base);
  font-weight: 500;
  text-align: center;
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.link-button::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    transparent 0%,
    rgba(255, 255, 255, 0.1) 50%,
    transparent 100%
  );
  transform: translateX(-100%);
  transition: var(--transition-slow);
}

.link-button:hover {
  background: var(--btn-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
  border-color: var(--accent);
}

.link-button:hover::before {
  transform: translateX(100%);
}

.link-button:active {
  transform: translateY(0);
  background: var(--btn-active);
}

.link-button__icon {
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.link-button__text {
  flex: 1;
}

.link-button__arrow {
  opacity: 0;
  transform: translateX(-10px);
  transition: var(--transition-base);
}

.link-button:hover .link-button__arrow {
  opacity: 1;
  transform: translateX(0);
}

/* 개별 링크 애니메이션 딜레이 */
.link-button:nth-child(1) { animation-delay: 0.1s; }
.link-button:nth-child(2) { animation-delay: 0.2s; }
.link-button:nth-child(3) { animation-delay: 0.3s; }
.link-button:nth-child(4) { animation-delay: 0.4s; }
.link-button:nth-child(5) { animation-delay: 0.5s; }

.link-button {
  animation: slideUp 0.5s ease-out forwards;
  opacity: 0;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Social Section ===== */
.social {
  text-align: center;
}

.social__icons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.social__link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--btn-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-full);
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
  transition: var(--transition-base);
}

.social__link:hover {
  background: var(--btn-hover);
  color: var(--text-primary);
  transform: translateY(-3px) scale(1.1);
  border-color: var(--accent);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.social__link:active {
  transform: translateY(0) scale(0.95);
}

/* 소셜 아이콘 SVG */
.social__link svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.social__footer {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.social__footer .heart {
  color: var(--heart);
  display: inline-block;
  animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.2);
  }
}

/* ===== Responsive Design ===== */

/* Tablet */
@media (min-width: 481px) {
  .card {
    padding: var(--spacing-xl);
  }
  
  .profile__avatar {
    width: 110px;
    height: 110px;
  }
  
  .profile__name {
    font-size: 1.75rem;
  }
}

/* Desktop */
@media (min-width: 769px) {
  :root {
    --card-max-width: 480px;
  }
  
  .profile__avatar {
    width: 120px;
    height: 120px;
  }
  
  .link-button {
    padding: var(--spacing-md) var(--spacing-lg);
  }
}

/* 작은 모바일 */
@media (max-width: 360px) {
  .card {
    padding: var(--spacing-sm);
  }
  
  .profile__avatar {
    width: 80px;
    height: 80px;
  }
  
  .profile__name {
    font-size: var(--font-size-lg);
  }
  
  .social__icons {
    gap: var(--spacing-sm);
  }
  
  .social__link {
    width: 40px;
    height: 40px;
  }
}

/* ===== Accessibility ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 포커스 스타일 */
.link-button:focus-visible,
.social__link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* 고대비 모드 */
@media (prefers-contrast: high) {
  :root {
    --glass-bg: rgba(0, 0, 0, 0.8);
    --glass-border: rgba(255, 255, 255, 0.5);
    --btn-bg: rgba(255, 255, 255, 0.2);
  }
}

/* ===== Loading Screen ===== */
.loading-screen {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  background: linear-gradient(
    135deg,
    var(--bg-gradient-start) 0%,
    var(--bg-gradient-mid) 50%,
    var(--bg-gradient-end) 100%
  );
  z-index: 9999;
  transition: opacity 0.3s ease;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--glass-border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.loading-screen p {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

/* ===== Admin Toggle Button ===== */
.admin-toggle-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background: var(--accent);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: 0 4px 20px var(--accent-glow);
  transition: var(--transition-base);
  z-index: 100;
}

.admin-toggle-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px var(--accent-glow);
}

.admin-toggle-btn:active {
  transform: scale(0.95);
}

/* ===== Admin Panel Overlay ===== */
.admin-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-base);
  z-index: 1000;
  padding: var(--spacing-md);
}

.admin-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ===== Admin Panel ===== */
.admin-panel {
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  background: var(--bg-gradient-mid);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  overflow: hidden;
  transform: translateY(20px) scale(0.95);
  transition: var(--transition-base);
  display: flex;
  flex-direction: column;
}

.admin-overlay.active .admin-panel {
  transform: translateY(0) scale(1);
}

/* Admin Header */
.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.2);
}

.admin-header h2 {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.admin-close-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--text-secondary);
  background: var(--btn-bg);
  border-radius: var(--border-radius-full);
  transition: var(--transition-base);
}

.admin-close-btn:hover {
  color: var(--text-primary);
  background: var(--btn-hover);
}

/* Admin Content */
.admin-content {
  padding: var(--spacing-md);
  overflow-y: auto;
  flex: 1;
}

/* Admin Sections */
.admin-section {
  margin-bottom: var(--spacing-lg);
}

.admin-section h3 {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.admin-description {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

/* Form Elements */
.form-group {
  margin-bottom: var(--spacing-sm);
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--spacing-sm);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  font-family: inherit;
  transition: var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group textarea {
  resize: vertical;
  min-height: 60px;
}

/* Avatar Upload */
.avatar-upload {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.avatar-upload__preview {
  width: 56px;
  height: 56px;
  border-radius: var(--border-radius-full);
  background: var(--glass-bg);
  border: 2px dashed var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
  position: relative;
}

.avatar-upload__preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: none;
}

.avatar-upload__preview.has-image img {
  display: block;
}

.avatar-upload__preview.has-image .avatar-upload__placeholder {
  display: none;
}

.avatar-upload__placeholder {
  font-size: 20px;
  opacity: 0.5;
}

.avatar-upload__dropzone {
  flex: 1;
  padding: var(--spacing-sm);
  background: var(--glass-bg);
  border: 2px dashed var(--glass-border);
  border-radius: var(--border-radius-sm);
  text-align: center;
  cursor: pointer;
  transition: var(--transition-base);
}

.avatar-upload__dropzone:hover,
.avatar-upload__dropzone.dragover {
  border-color: var(--accent);
  background: rgba(108, 99, 255, 0.1);
}

.avatar-upload__dropzone p {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  margin-bottom: 2px;
  line-height: 1.3;
}

.avatar-upload__dropzone strong {
  color: var(--accent);
}

.avatar-upload__hint {
  font-size: 10px;
  color: var(--text-muted);
}

.upload-hint-link {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--accent);
  text-decoration: none;
  transition: var(--transition-base);
}

.upload-hint-link:hover {
  text-decoration: underline;
  opacity: 0.8;
}

.avatar-upload__progress {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md);
  background: var(--glass-bg);
  border-radius: var(--border-radius-sm);
}

.avatar-upload__progress-bar {
  width: 100%;
  height: 6px;
  background: var(--glass-border);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}

.avatar-upload__progress-bar::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: var(--progress, 0%);
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.3s ease;
}

#avatarProgressBar {
  width: 0%;
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.3s ease;
}

#avatarProgressText {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--border-radius-sm);
  transition: var(--transition-base);
  cursor: pointer;
}

.btn--primary {
  background: var(--accent);
  color: white;
}

.btn--primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.btn--secondary {
  background: var(--btn-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
}

.btn--secondary:hover {
  background: var(--btn-hover);
}

.btn--danger {
  background: var(--heart);
  color: white;
}

.btn--danger:hover {
  filter: brightness(1.1);
}

.btn--small {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
}

.btn--google {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: white;
  color: #333;
  font-weight: 500;
  border-radius: var(--border-radius-sm);
}

.btn--google:hover {
  background: #f5f5f5;
}

.btn--google svg {
  flex-shrink: 0;
}

/* User Info */
.user-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: var(--glass-bg);
  border-radius: var(--border-radius-sm);
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-full);
  object-fit: cover;
}

.user-details {
  flex: 1;
  min-width: 0;
}

.user-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-email {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Link Item Editor */
.link-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-sm);
  padding: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.link-item__header {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-xs);
}

.link-item__drag {
  cursor: grab;
  color: var(--text-muted);
  padding: 4px;
}

.link-item__icon {
  width: 40px;
  text-align: center;
  padding: var(--spacing-xs);
  background: var(--btn-bg);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: var(--font-size-lg);
}

.link-item__delete {
  margin-left: auto;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--btn-bg);
  border-radius: var(--border-radius-full);
  color: var(--text-secondary);
  font-size: 18px;
  transition: var(--transition-base);
}

.link-item__delete:hover {
  background: var(--heart);
  color: white;
}

.link-item__field {
  margin-bottom: var(--spacing-xs);
}

.link-item__field:last-child {
  margin-bottom: 0;
}

.link-item__field label {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-bottom: 4px;
}

.link-item__title,
.link-item__url {
  width: 100%;
  padding: var(--spacing-xs);
  background: transparent;
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.link-item__title:focus,
.link-item__url:focus {
  border-color: var(--accent);
  outline: none;
}

.empty-editor-message {
  text-align: center;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  padding: var(--spacing-md);
  background: var(--glass-bg);
  border-radius: var(--border-radius-sm);
  border: 1px dashed var(--glass-border);
}

/* Emoji Picker */
.emoji-picker-wrapper {
  position: relative;
}

.link-item__icon-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  background: var(--btn-bg);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-base);
}

.link-item__icon-btn:hover {
  background: var(--btn-hover);
  border-color: var(--accent);
}

.link-item__icon-display {
  font-size: var(--font-size-lg);
}

.link-item__icon-arrow {
  font-size: 8px;
  color: var(--text-muted);
}

.emoji-picker {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 4px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  padding: 8px;
  background: rgba(48, 43, 99, 0.98);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-sm);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  z-index: 100;
  min-width: 180px;
}

.emoji-option {
  padding: 8px;
  font-size: 20px;
  background: transparent;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition-base);
}

.emoji-option:hover {
  background: var(--btn-hover);
  transform: scale(1.2);
}

/* Social Item Editor */
.social-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.social-item__platform {
  width: 120px;
  padding: var(--spacing-xs);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.social-item__url {
  flex: 1;
  padding: var(--spacing-xs);
  background: transparent;
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.social-item__delete {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--btn-bg);
  border-radius: var(--border-radius-full);
  color: var(--text-secondary);
  font-size: 18px;
  transition: var(--transition-base);
}

.social-item__delete:hover {
  background: var(--heart);
  color: white;
}

/* Admin Actions */
.admin-actions {
  display: flex;
  gap: var(--spacing-sm);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--glass-border);
}

.admin-actions .btn {
  flex: 1;
}

/* ===== Toast Notification ===== */
.toast {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-gradient-mid);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-base);
  z-index: 2000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

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

.toast--success {
  border-color: var(--online);
}

.toast--error {
  border-color: var(--heart);
}

.toast--warning {
  border-color: #ffc107;
}

.toast--info {
  border-color: var(--accent);
}

/* Empty Message */
.empty-message {
  text-align: center;
  color: var(--text-muted);
  padding: var(--spacing-lg);
  font-size: var(--font-size-sm);
}

/* ===== fadeIn Animation ===== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* ===== Admin Panel Mobile Responsive ===== */
@media (max-width: 480px) {
  .admin-panel {
    max-height: 95vh;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    max-width: 100%;
  }
  
  .admin-overlay.active .admin-panel {
    transform: translateY(0);
  }
  
  .admin-toggle-btn {
    bottom: 16px;
    right: 16px;
    width: 48px;
    height: 48px;
    font-size: 20px;
  }
  
  .user-info {
    flex-wrap: wrap;
  }
  
  .user-details {
    flex: 1 1 100%;
    order: 1;
    margin-top: var(--spacing-xs);
  }
  
  .admin-actions {
    flex-direction: column;
  }
}

/* ===== Landing Page ===== */
.landing-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.landing-container {
  max-width: 600px;
  width: 100%;
  text-align: center;
}

.landing-hero {
  margin-bottom: var(--spacing-xl);
}

.landing-logo {
  font-size: 4rem;
  margin-bottom: var(--spacing-md);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.landing-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.landing-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.landing-description {
  font-size: var(--font-size-base);
  color: var(--text-muted);
  line-height: 1.6;
}

.landing-cta {
  margin-bottom: var(--spacing-xl);
}

.landing-cta .btn--large {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
  gap: var(--spacing-sm);
}

.landing-login-hint {
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.landing-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.feature-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  backdrop-filter: blur(10px);
  transition: var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.feature-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
  font-size: var(--font-size-base);
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.feature-card p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.landing-footer {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

/* ===== 404 Page ===== */
.page-404 {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.page-404__content {
  text-align: center;
}

.page-404__icon {
  font-size: 4rem;
  display: block;
  margin-bottom: var(--spacing-md);
}

.page-404__content h1 {
  font-size: var(--font-size-xl);
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.page-404__content p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  z-index: 1000;
}

.modal {
  background: linear-gradient(145deg, rgba(48, 43, 99, 0.95), rgba(15, 12, 41, 0.95));
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  max-width: 400px;
  width: 100%;
  overflow: hidden;
  animation: modalIn 0.3s ease-out;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal__header {
  padding: var(--spacing-lg);
  text-align: center;
  border-bottom: 1px solid var(--glass-border);
}

.modal__header h2 {
  font-size: var(--font-size-xl);
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.modal__header p {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.modal__body {
  padding: var(--spacing-lg);
}

.modal__footer {
  padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg);
}

.modal__footer .btn--large {
  width: 100%;
  padding: var(--spacing-md);
}

/* Input with prefix */
.input-with-prefix {
  display: flex;
  align-items: stretch;
}

.input-prefix {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-right: none;
  border-radius: var(--border-radius-sm) 0 0 var(--border-radius-sm);
  padding: var(--spacing-sm);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
}

.input-with-prefix input {
  border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
}

.form-hint {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.error-message {
  color: var(--heart);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-sm);
  min-height: 1.5em;
}

/* ===== Responsive Landing ===== */
@media (max-width: 480px) {
  .landing-title {
    font-size: 2rem;
  }
  
  .landing-cta .btn--large {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
  }
  
  .landing-features {
    grid-template-columns: 1fr;
  }
}