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

:root {
  --color-primary: #1a1a2e;
  --color-accent: #4DBCE5;
  --color-accent-hover: #3aa8d1;
  --color-bg: #f5f5f7;
  --color-white: #ffffff;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-border: #e0e0e0;
  --color-success: #27ae60;
  --color-error: #e74c3c;
  --color-danger: #dc3545;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.18);
  --transition: 0.25s ease;
  --card-bg: #ffffff;
  --input-bg: #fff;
  --input-border: #e0e0e0;
  --table-header-bg: #f8f9fc;
  --table-row-hover: #f5f7fa;
  --badge-bg: #f0f0f2;
}

/* === Dark Mode === */
[data-theme="dark"] {
  --color-primary: #e0e0e0;
  --color-bg: #1a1a2e;
  --color-white: #242438;
  --color-text: #e0e0e0;
  --color-text-light: #a0a0b0;
  --color-border: #3a3a50;
  --card-bg: #242438;
  --input-bg: #1e1e32;
  --input-border: #3a3a50;
  --table-header-bg: #1e1e32;
  --table-row-hover: #2a2a40;
  --badge-bg: #333350;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] body {
  background: #0f0f1e;
}

[data-theme="dark"] .upload-card,
[data-theme="dark"] .download-card,
[data-theme="dark"] .expired-card,
[data-theme="dark"] .auth-card,
[data-theme="dark"] .admin-card {
  background: var(--card-bg);
}

[data-theme="dark"] .add-btn {
  background: var(--input-bg);
  border-color: var(--color-border);
  color: var(--color-text-light);
}

[data-theme="dark"] .add-btn:hover {
  background: #2a2a40;
  border-color: var(--color-accent);
  color: var(--color-accent);
}

[data-theme="dark"] .uppy-Dashboard-inner {
  background: var(--input-bg) !important;
  border-color: var(--color-border) !important;
}

[data-theme="dark"] .uppy-DashboardContent-bar {
  background: var(--card-bg) !important;
}

[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group textarea,
[data-theme="dark"] .form-group select {
  background: var(--input-bg);
  border-color: var(--input-border);
  color: var(--color-text);
}

[data-theme="dark"] .form-group input::placeholder,
[data-theme="dark"] .form-group textarea::placeholder {
  color: #666;
}

[data-theme="dark"] .toggle-btn {
  background: var(--input-bg);
  color: var(--color-text-light);
  border-color: var(--color-border);
}

[data-theme="dark"] .toggle-btn:not(.active):hover {
  background: #2a2a40;
}

[data-theme="dark"] .btn-secondary {
  background: #333350;
  color: var(--color-text);
  border-color: var(--color-border);
}

[data-theme="dark"] .btn-secondary:hover {
  background: #3a3a55;
}

[data-theme="dark"] .btn-primary:disabled {
  background: #333350;
  color: #666;
}

[data-theme="dark"] .file-list {
  border-color: var(--color-border);
}

[data-theme="dark"] .file-list-header {
  background: var(--table-header-bg);
  border-color: var(--color-border);
}

[data-theme="dark"] .file-item {
  border-color: var(--color-border);
}

[data-theme="dark"] .transfer-message {
  background: var(--table-header-bg);
  color: var(--color-text-light);
}

[data-theme="dark"] .link-copy input {
  background: var(--input-bg);
  border-color: var(--input-border);
  color: var(--color-text);
}

[data-theme="dark"] .mode-btn {
  background: var(--input-bg);
  color: var(--color-text-light);
  border-color: var(--color-border);
}

[data-theme="dark"] .mode-btn:not(.active):hover {
  background: #2a2a40;
}

[data-theme="dark"] .btn-option {
  background: var(--input-bg);
  color: var(--color-text-light);
  border-color: var(--color-border);
}

[data-theme="dark"] .btn-option:not(.active):hover {
  background: #2a2a40;
}

[data-theme="dark"] .admin-table th {
  background: var(--table-header-bg);
}

[data-theme="dark"] .admin-table td {
  border-color: var(--color-border);
}

[data-theme="dark"] .admin-table tr:hover td {
  background: var(--table-row-hover);
}

[data-theme="dark"] .stat-card {
  background: var(--card-bg);
}

[data-theme="dark"] .invite-link-input {
  background: var(--input-bg);
  border-color: var(--input-border);
  color: var(--color-text);
}

[data-theme="dark"] summary {
  color: var(--color-text-light);
}

/* === Theme Toggle === */
.theme-toggle {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.6);
  cursor: pointer;
  padding: 8px 16px;
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  font-size: 0.85rem;
}

.theme-toggle:hover {
  border-color: rgba(255,255,255,0.4);
  color: #fff;
}

.theme-icon-moon { display: none; }
[data-theme="dark"] .theme-icon-sun { display: none; }
[data-theme="dark"] .theme-icon-moon { display: block; }

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: #1a1a2e;
  overflow-x: hidden;
}

/* === Dynamic Background === */
.page-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transition: opacity 1s ease;
}

.page-background::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0,0,0,0.35) 0%, rgba(0,0,0,0.15) 50%, rgba(0,0,0,0.3) 100%);
}

.bg-credit {
  position: fixed;
  bottom: 14px;
  right: 20px;
  z-index: 2;
  color: rgba(255,255,255,0.5);
  font-size: 0.7rem;
  text-decoration: none;
  transition: color var(--transition);
}

.bg-credit:hover {
  color: rgba(255,255,255,0.85);
}

/* === Header === */
.site-header {
  position: relative;
  z-index: 10;
  padding: 14px 0;
  background: transparent;
  flex-shrink: 0;
}

.site-header .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo {
  text-decoration: none;
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-vip { color: #fff; }
.logo-transfer { color: rgba(255,255,255,0.7); font-weight: 400; }

.nav-link {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color var(--transition);
  padding: 8px 16px;
  border-radius: 0;
  border: 1px solid rgba(255,255,255,0.15);
}

.nav-link:hover {
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}

.nav-back {
  margin-right: auto;
  border-color: transparent;
  opacity: 0.7;
}

.nav-back:hover {
  opacity: 1;
  border-color: transparent;
}

.nav-user {
  color: rgba(255,255,255,0.7);
  font-size: 0.85rem;
  padding: 0 8px;
}

/* === Main Content === */
main {
  flex: 1;
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  padding: 0 32px 20px;
}

main > .container {
  max-width: 1200px;
  width: 100%;
}

/* === Upload Page === */
.upload-page {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.upload-card {
  width: 100%;
  max-width: 680px;
  background: var(--card-bg);
  border-radius: 0;
  box-shadow: var(--shadow-lg);
  padding: 48px;
  position: relative;
}

.upload-card-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.upload-card-title .icon {
  width: 46px;
  height: 46px;
  background: var(--color-accent);
  color: white;
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

/* === Mode Toggle === */
.mode-toggle {
  display: flex;
  gap: 0;
  margin-bottom: 24px;
  border-radius: 0;
  overflow: hidden;
  border: 1.5px solid var(--color-border);
}

.mode-btn {
  flex: 1;
  padding: 12px 14px;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  border: none;
  background: var(--input-bg);
  color: var(--color-text-light);
  cursor: pointer;
  transition: all var(--transition);
}

.mode-btn + .mode-btn {
  border-left: 1.5px solid var(--color-border);
}

.mode-btn.active {
  background: var(--color-accent);
  color: #fff;
}

.mode-btn:not(.active):hover {
  background: #f0f0f2;
}

/* === Add Files Buttons === */
.add-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.add-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 40px 20px;
  border: 2px dashed rgba(0,0,0,0.12);
  border-radius: 0;
  background: #fafbfc;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--color-text-light);
}

.add-btn:hover {
  border-color: var(--color-accent);
  background: #f0f7ff;
  color: var(--color-accent);
}

.add-btn-icon { font-size: 2.5rem; line-height: 1; }
.add-btn-label { font-size: 1rem; font-weight: 600; }
.add-buttons.hidden { display: none; }

/* === Uppy Overrides === */
.uppy-Dashboard-inner {
  border: 2px dashed rgba(0,0,0,0.12) !important;
  border-radius: 0 !important;
  background: #fafbfc !important;
  min-height: 180px !important;
}

.uppy-Dashboard-dropFilesHereHint { color: var(--color-text-light) !important; }
.uppy-DashboardContent-bar { background: var(--color-white) !important; border-radius: 0 !important; }
.uppy-Dashboard-AddFiles-title { color: var(--color-text) !important; font-size: 0.95rem !important; }
.uppy-DashboardContent-addMore svg, .uppy-Dashboard-browse { color: var(--color-accent) !important; }
.uppy-StatusBar-actionBtn--upload { background-color: var(--color-accent) !important; border-radius: 0 !important; }

/* === Drag & Drop Overlay === */
.drag-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  background: rgba(77, 188, 229, 0.15);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.drag-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.drag-overlay-content {
  text-align: center;
  padding: 60px;
  border: 3px dashed var(--color-accent);
  border-radius: 20px;
  background: rgba(255,255,255,0.95);
  color: var(--color-text);
}

[data-theme="dark"] .drag-overlay-content {
  background: rgba(36,36,56,0.95);
}

.drag-icon { font-size: 4rem; margin-bottom: 16px; }
.drag-overlay-content p { font-size: 1.3rem; font-weight: 600; }

/* === Upload Progress Info === */
.upload-progress-info {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.progress-speed { font-weight: 600; }

/* === Recipient List === */
.recipient-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.recipient-entry {
  display: flex;
  gap: 6px;
}

.recipient-input {
  flex: 1;
  padding: 10px 12px;
  border: 1.5px solid var(--input-border);
  border-radius: 0;
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--input-bg);
  color: var(--color-text);
}

.recipient-remove {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-error);
  cursor: pointer;
  padding: 0 10px;
  font-size: 1.2rem;
  border-radius: 0;
}

/* === Button Groups === */
.btn-group {
  display: flex;
  gap: 0;
  border-radius: 0;
  overflow: hidden;
  border: 1.5px solid var(--color-border);
}

.btn-option {
  flex: 1;
  padding: 8px 12px;
  font-size: 0.85rem;
  font-weight: 500;
  font-family: inherit;
  border: none;
  background: var(--input-bg);
  color: var(--color-text-light);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-option + .btn-option {
  border-left: 1.5px solid var(--color-border);
}

.btn-option.active {
  background: var(--color-accent);
  color: #fff;
}

.btn-option:not(.active):hover {
  background: #f0f0f2;
}

/* === Advanced Options === */
.advanced-options {
  margin: 16px 0;
}

.advanced-options summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-accent);
  padding: 8px 0;
}

.advanced-options[open] summary {
  margin-bottom: 12px;
}

/* === Forms === */
.transfer-form {
  margin-top: 20px;
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
}

.form-group {
  margin-bottom: 22px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid var(--input-border);
  border-radius: 0;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
  background: var(--input-bg);
  color: var(--color-text);
}

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

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(64,159,255,0.12);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #bbb;
}

.form-select {
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3e%3cpath d='M6 9l6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 18px;
  padding-right: 40px;
}

.form-hint {
  display: block;
  margin-top: 3px;
  font-size: 0.75rem;
  color: #aaa;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: 0;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  gap: 8px;
}

.btn-primary { background: var(--color-accent); color: #fff; }
.btn-primary:hover { background: var(--color-accent-hover); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(64,159,255,0.3); }
.btn-primary:disabled { background: #d0d5dd; color: #98a2b3; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-secondary { background: #f2f4f7; color: var(--color-text); border: 1px solid var(--color-border); }
.btn-secondary:hover { background: #e4e7ec; }
.btn-danger { background: var(--color-danger); color: #fff; border: none; }
.btn-danger:hover { background: #c82333; }
.btn-lg { padding: 14px 28px; font-size: 0.95rem; width: 100%; border-radius: 0; }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }

#sendBtn {
  margin-top: 10px;
  border-radius: 0;
  font-size: 1.05rem;
  padding: 16px 32px;
  width: 100%;
  letter-spacing: 0.3px;
}

/* === Success State === */
.transfer-success { text-align: center; padding: 16px 0; }
.success-icon {
  width: 56px; height: 56px; margin: 0 auto 14px;
  background: var(--color-success); color: white; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; box-shadow: 0 4px 14px rgba(39,174,96,0.3);
}
.transfer-success h2 { color: var(--color-text); margin-bottom: 6px; font-size: 1.2rem; }
.transfer-success > p { color: var(--color-text-light); font-size: 0.9rem; }

.download-link-box { margin: 20px 0; text-align: left; }
.download-link-box label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.8rem; color: var(--color-text-light); text-transform: uppercase; letter-spacing: 0.5px; }
.link-copy { display: flex; gap: 6px; }
.link-copy input { flex: 1; padding: 10px 12px; border: 1.5px solid var(--color-border); border-radius: 0; font-size: 0.85rem; background: var(--input-bg); color: var(--color-text); }
.link-copy .btn { white-space: nowrap; }
.expires-info { color: var(--color-text-light); font-size: 0.8rem; margin-top: 10px; }

/* === QR Code === */
.qr-code-box {
  margin: 16px auto;
  text-align: center;
  max-width: 200px;
}

.qr-code-box svg {
  width: 100%;
  height: auto;
}

.qr-download-section {
  margin: 16px 0;
  text-align: center;
}

.qr-download-section summary {
  cursor: pointer;
  color: var(--color-accent);
  font-size: 0.85rem;
  font-weight: 600;
}

/* === Download Page === */
.download-page { max-width: 520px; margin: 60px auto 0; }
.download-card { background: var(--card-bg); border-radius: 0; box-shadow: var(--shadow-lg); padding: 36px; }
.download-info h2 { margin-bottom: 6px; color: var(--color-primary); font-size: 1.3rem; }
.sender-info { color: var(--color-text-light); margin-bottom: 20px; font-size: 0.9rem; }
.transfer-message { background: var(--table-header-bg); padding: 14px 16px; border-radius: 0; margin-bottom: 24px; border-left: 3px solid var(--color-accent); font-size: 0.9rem; color: var(--color-text-light); }

.file-list { border: 1px solid var(--color-border); border-radius: 0; margin-bottom: 20px; overflow: hidden; }
.file-list-header { padding: 10px 16px; background: var(--table-header-bg); border-bottom: 1px solid var(--color-border); font-weight: 600; font-size: 0.8rem; color: var(--color-text-light); text-transform: uppercase; letter-spacing: 0.5px; display: flex; justify-content: space-between; align-items: center; }
.download-counter { font-size: 0.75rem; }

.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--color-border);
  gap: 12px;
}
.file-item:last-child { border-bottom: none; }

.file-info-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 0;
}

.file-info { flex: 1; min-width: 0; }
.file-name { display: block; font-weight: 500; font-size: 0.9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-size { display: block; font-size: 0.75rem; color: #aaa; }

.file-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.file-thumb {
  width: 48px;
  height: 48px;
  border-radius: 4px;
  overflow: hidden;
  flex-shrink: 0;
  cursor: pointer;
}

.file-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.download-all-btn { display: block; margin-bottom: 16px; border-radius: 0; }
.expires-note { text-align: center; color: rgba(255,255,255,0.6); font-size: 0.8rem; }

/* === Image Preview Modal === */
.preview-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  background: rgba(0,0,0,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-modal-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  text-align: center;
}

.preview-modal-content img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
}

.preview-modal-content p {
  color: #fff;
  margin-top: 12px;
  font-size: 0.9rem;
}

.preview-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: none;
  border: none;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
}

/* === Password Gate === */
.password-gate { text-align: center; padding: 20px 0; }
.lock-icon { font-size: 2.5rem; margin-bottom: 12px; }
.password-gate h2 { margin-bottom: 6px; font-size: 1.2rem; }
.password-gate p { color: var(--color-text-light); margin-bottom: 20px; font-size: 0.9rem; }
.password-gate form { max-width: 280px; margin: 0 auto; }
.password-gate .form-group { margin-bottom: 14px; }
.password-gate .btn { width: 100%; border-radius: 0; }
.error-msg { color: var(--color-error); font-weight: 600; font-size: 0.9rem; }

/* === Expired Page === */
.expired-page { max-width: 480px; margin: 80px auto 0; }
.expired-card { text-align: center; padding: 48px 36px; background: var(--card-bg); border-radius: 0; box-shadow: var(--shadow-lg); }
.expired-icon { font-size: 2.5rem; margin-bottom: 12px; }
.expired-card h2 { margin-bottom: 10px; color: var(--color-primary); font-size: 1.3rem; }
.expired-card p { color: var(--color-text-light); margin-bottom: 10px; font-size: 0.9rem; }
.expired-card .btn { margin-top: 16px; border-radius: 0; }

/* === Auth Pages === */
.auth-page { max-width: 420px; margin: 60px auto 0; }
.auth-card { background: var(--card-bg); border-radius: 0; box-shadow: var(--shadow-lg); padding: 40px; }
.auth-card h2 { margin-bottom: 24px; color: var(--color-primary); font-size: 1.3rem; }
.auth-subtitle { color: var(--color-text-light); font-size: 0.9rem; margin-bottom: 20px; }

.alert {
  padding: 12px 16px;
  border-radius: 0;
  margin-bottom: 20px;
  font-size: 0.9rem;
}

.alert-error {
  background: #ffeaea;
  color: var(--color-error);
  border: 1px solid #ffcccc;
}

[data-theme="dark"] .alert-error {
  background: #3a2020;
  border-color: #5a3030;
}

.alert-success {
  background: #eafff0;
  color: var(--color-success);
  border: 1px solid #ccffdd;
}

[data-theme="dark"] .alert-success {
  background: #1a3a22;
  border-color: #2a5a32;
}

/* === Admin Pages === */
.admin-page {
  max-width: 1100px;
  margin: 30px auto 0;
  width: 100%;
}

.admin-title {
  color: #fff;
  font-size: 1.5rem;
  margin-bottom: 24px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--card-bg);
  padding: 24px;
  box-shadow: var(--shadow);
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1.2;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.admin-card {
  background: var(--card-bg);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}

.admin-card h2 {
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.table-wrapper {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.admin-table th {
  text-align: left;
  padding: 10px 12px;
  background: var(--table-header-bg);
  font-weight: 600;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  font-size: 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

.admin-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

.admin-table tr:hover td {
  background: var(--table-row-hover);
}

.row-expired td {
  opacity: 0.5;
}

.no-data {
  text-align: center;
  color: var(--color-text-light);
  padding: 24px !important;
}

.truncate {
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* === Badges === */
.badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.badge-active { background: #e6f9ed; color: #1d8348; }
.badge-expired { background: #fce4e4; color: #c0392b; }
.badge-pending { background: #fff4e5; color: #e67e22; }
.badge-vip { background: #e0f0ff; color: #2980b9; }
.badge-ext { background: var(--badge-bg); color: var(--color-text-light); }
.badge-admin { background: #f0e0ff; color: #8e44ad; }
.badge-user { background: var(--badge-bg); color: var(--color-text-light); }
.badge-scan-clean { background: #e6f9ed; color: #1d8348; }
.badge-scan-pending { background: #fff4e5; color: #e67e22; }
.badge-scan-infected { background: #fce4e4; color: #c0392b; }
.badge-scan-skipped { background: var(--badge-bg); color: var(--color-text-light); }

[data-theme="dark"] .badge-active { background: #1a3a22; }
[data-theme="dark"] .badge-expired { background: #3a1a1a; }
[data-theme="dark"] .badge-pending { background: #3a2a1a; }
[data-theme="dark"] .badge-vip { background: #1a2a3a; }
[data-theme="dark"] .badge-scan-clean { background: #1a3a22; }

/* === Detail Page === */
.back-link {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: 0.9rem;
  display: inline-block;
  margin-bottom: 16px;
}

.back-link:hover { color: #fff; }

.detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.detail-row {
  display: flex;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}

.detail-label {
  font-weight: 600;
  color: var(--color-text-light);
  min-width: 140px;
  flex-shrink: 0;
}

.detail-row a {
  color: var(--color-accent);
  word-break: break-all;
}

/* === Invite Form === */
.invite-form { margin-bottom: 0; }
.invite-row { display: flex; gap: 8px; }
.invite-row input { flex: 1; }
.invite-link-input {
  width: 100%;
  padding: 6px 8px;
  font-size: 0.75rem;
  border: 1px solid var(--color-border);
  background: var(--input-bg);
  color: var(--color-text);
  cursor: pointer;
}

/* === Footer === */
.site-footer {
  position: relative;
  z-index: 5;
  padding: 24px 0;
  text-align: center;
  font-size: 0.8rem;
  background: transparent;
  flex-shrink: 0;
}

.site-footer p { color: rgba(255,255,255,0.85); text-shadow: 0 1px 4px rgba(0,0,0,0.6); }
.site-footer a { color: #fff; text-decoration: none; text-shadow: 0 1px 4px rgba(0,0,0,0.6); }
.site-footer a:hover { color: #fff; }
.footer-sub { margin-top: 2px; font-size: 0.75rem; color: rgba(255,255,255,0.6); text-shadow: 0 1px 4px rgba(0,0,0,0.6); }

/* === Responsive === */
@media (max-width: 768px) {
  main { padding: 0 16px 30px; }
  .site-header .container { padding: 0 16px; }
  .upload-card { width: 100%; padding: 32px; }
  .upload-card-title { font-size: 1.3rem; }
  .add-btn { padding: 28px 14px; }
  .add-btn-icon { font-size: 2rem; }
  .download-page { max-width: 100%; margin-top: 30px; }
  .expired-page { max-width: 100%; margin-top: 40px; }
  .admin-page { margin-top: 16px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .header-nav { gap: 4px; flex-wrap: wrap; }
  .nav-user { display: none; }
}

@media (max-width: 480px) {
  main { padding: 0 10px 20px; }
  .upload-card { padding: 20px; border-radius: 0; }
  .upload-card-title { font-size: 1.1rem; margin-bottom: 20px; }
  .upload-card-title .icon { width: 36px; height: 36px; font-size: 1.1rem; }
  .add-btn { padding: 20px 10px; }
  .add-btn-icon { font-size: 1.6rem; }
  .add-btn-label { font-size: 0.85rem; }
  .form-group input, .form-group textarea, .form-group select { padding: 11px 12px; font-size: 0.95rem; }
  .mode-btn { padding: 8px 10px; font-size: 0.85rem; }
  #sendBtn { padding: 14px 24px; font-size: 0.95rem; }
  .file-item { flex-direction: column; align-items: flex-start; gap: 6px; }
  .file-actions { align-self: flex-end; }
  .link-copy { flex-direction: column; }
  .download-card { padding: 24px 20px; }
  .expired-card { padding: 32px 20px; }
  .auth-card { padding: 28px 20px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .stat-card { padding: 16px; }
  .stat-value { font-size: 1.5rem; }
  .detail-row { flex-direction: column; gap: 2px; }
  .detail-label { min-width: auto; }
}