/* NyxVault — heynyx.dev Inspired Theme 🔐🦞 */
:root {
  --bg-primary: #0d0d1a;
  --bg-secondary: #141425;
  --bg-tertiary: #1c1c35;
  --bg-hover: #252545;
  --border: rgba(200, 130, 255, 0.12);
  --border-strong: rgba(200, 130, 255, 0.25);
  --border-subtle: rgba(200, 130, 255, 0.06);
  --text: #f0eaff;
  --text-muted: #9b8ec4;
  --pink: #e879a8;
  --purple: #a855f7;
  --violet: #7c3aed;
  --cyan: #67e8f9;
  --magenta: #d946ef;
  --green: #4ade80;
  --red: #f87171;
  --yellow: #fbbf24;
  --gradient-main: linear-gradient(135deg, #e879a8, #a855f7, #67e8f9);
  --gradient-btn: linear-gradient(135deg, #e879a8, #a855f7);
  --gradient-glow: rgba(168, 85, 247, 0.15);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  background: var(--bg-primary);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(ellipse at 20% 20%, rgba(232, 121, 168, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(168, 85, 247, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(103, 232, 249, 0.03) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
  animation: bgFloat 20s ease-in-out infinite;
}

@keyframes bgFloat {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(-2%, 1%); }
  66% { transform: translate(1%, -2%); }
}

/* Layout */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px;
  position: relative;
  z-index: 1;
}

/* Header */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

header h1 {
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

header .subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

#logoutBtn {
  background: rgba(200, 130, 255, 0.08);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 8px 18px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all var(--transition);
  font-weight: 500;
}
#logoutBtn:hover {
  border-color: var(--red);
  color: var(--red);
  background: rgba(248, 113, 113, 0.1);
  transform: translateY(-1px);
}

/* Login Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 8, 20, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.5s ease;
}

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

.modal {
  background: rgba(20, 20, 37, 0.95);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 48px 44px;
  width: 100%;
  max-width: 440px;
  text-align: center;
  box-shadow: 
    0 0 80px rgba(168, 85, 247, 0.08),
    0 0 160px rgba(232, 121, 168, 0.04),
    0 32px 100px rgba(0, 0, 0, 0.5);
  animation: modalSlideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.modal::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: linear-gradient(135deg, rgba(232, 121, 168, 0.4), rgba(168, 85, 247, 0.15), rgba(103, 232, 249, 0.3));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

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

.modal h2 {
  margin-bottom: 6px;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.modal p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

/* Animated Logo */
.vault-logo {
  position: relative;
  width: 110px;
  height: 110px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.vault-logo-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2.5px solid transparent;
  background: conic-gradient(from 0deg, var(--pink), var(--purple), var(--cyan), var(--pink)) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: ringRotate 4s linear infinite;
}

.vault-logo::after {
  content: '';
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.15), transparent 70%);
  pointer-events: none;
}

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

.modal .lobster-icon,
.download-card .lobster-icon {
  font-size: 3.2rem;
  z-index: 1;
  animation: lobsterFloat 4s ease-in-out infinite;
  filter: drop-shadow(0 4px 20px rgba(232, 121, 168, 0.3));
}

@keyframes lobsterFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  25% { transform: translateY(-5px) rotate(2deg); }
  75% { transform: translateY(-3px) rotate(-2deg); }
}

.vault-tagline {
  color: var(--text-muted) !important;
  font-size: 0.72rem !important;
  margin-bottom: 28px !important;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
}

/* Badge Pills (heynyx.dev style) */
.vault-badges {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.vault-badge {
  font-size: 0.7rem;
  padding: 4px 14px;
  border-radius: 20px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.vault-badge.pink { background: rgba(232, 121, 168, 0.15); color: var(--pink); border: 1px solid rgba(232, 121, 168, 0.25); }
.vault-badge.purple { background: rgba(168, 85, 247, 0.15); color: var(--purple); border: 1px solid rgba(168, 85, 247, 0.25); }
.vault-badge.cyan { background: rgba(103, 232, 249, 0.15); color: var(--cyan); border: 1px solid rgba(103, 232, 249, 0.25); }

/* Inputs */
.input-group {
  position: relative;
  margin-bottom: 16px;
}

.input-group input {
  width: 100%;
  padding: 14px 20px;
  background: rgba(28, 28, 53, 0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition);
}

.input-group input:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.2), 0 0 30px rgba(168, 85, 247, 0.08);
  background: rgba(28, 28, 53, 1);
}

.input-group input::placeholder {
  color: rgba(155, 142, 196, 0.6);
}

/* Buttons */
.btn-primary {
  width: 100%;
  padding: 14px;
  background: var(--gradient-btn);
  border: none;
  border-radius: var(--radius-sm);
  color: white;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  letter-spacing: 0.02em;
}
.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 30%, rgba(255,255,255,0.15) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.6s;
}
.btn-primary:hover::after {
  transform: translateX(100%);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(232, 121, 168, 0.3), 0 4px 15px rgba(168, 85, 247, 0.2);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.error-text {
  color: var(--red);
  font-size: 0.85rem;
  margin-top: 8px;
  display: none;
}

/* Drop Zone */
.dropzone {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 52px 40px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: 28px;
  background: rgba(20, 20, 37, 0.5);
  position: relative;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--pink);
  background: rgba(232, 121, 168, 0.04);
  box-shadow: 0 0 40px rgba(232, 121, 168, 0.08), inset 0 0 40px rgba(232, 121, 168, 0.03);
  transform: translateY(-3px);
}

.dropzone .icon {
  font-size: 3rem;
  margin-bottom: 14px;
  transition: transform var(--transition);
}

.dropzone:hover .icon {
  transform: translateY(-6px) scale(1.1);
}

.dropzone h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  font-weight: 600;
}

.dropzone p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.dropzone input[type="file"] {
  display: none;
}

/* Upload Options */
.upload-options {
  display: none;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  margin-bottom: 28px;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.upload-options.show {
  display: block;
}

.upload-options .file-info {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.upload-options .file-info .name {
  font-weight: 600;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.upload-options .file-info .size {
  color: var(--text-muted);
  font-size: 0.85rem;
  white-space: nowrap;
  background: rgba(168, 85, 247, 0.1);
  padding: 3px 10px;
  border-radius: 12px;
  font-weight: 500;
}

.upload-options label {
  display: block;
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.upload-options .expiry-row {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.upload-options select, .upload-options input[type="text"] {
  padding: 10px 14px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition);
}

.upload-options select:focus, .upload-options input[type="text"]:focus {
  border-color: var(--purple);
}

.upload-actions {
  display: flex;
  gap: 10px;
}

.btn-upload {
  flex: 1;
  padding: 12px;
  background: linear-gradient(135deg, var(--purple), var(--magenta));
  border: none;
  border-radius: var(--radius-sm);
  color: white;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-upload:hover {
  box-shadow: 0 8px 25px rgba(168, 85, 247, 0.3);
  transform: translateY(-2px);
}
.btn-upload:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-cancel {
  padding: 12px 24px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}
.btn-cancel:hover {
  border-color: var(--red);
  color: var(--red);
}

/* Progress Bar */
.progress-container {
  display: none;
  margin-bottom: 28px;
}

.progress-container.show {
  display: block;
}

.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 8px;
}

.progress-bar .fill {
  height: 100%;
  width: 0%;
  background: var(--gradient-main);
  background-size: 300% 100%;
  border-radius: 3px;
  transition: width 0.3s;
  animation: progressShimmer 2s linear infinite;
  box-shadow: 0 0 12px rgba(232, 121, 168, 0.3);
}

@keyframes progressShimmer {
  0% { background-position: 0% 0; }
  100% { background-position: 300% 0; }
}

.progress-text {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: right;
}

/* File List */
.file-list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.file-list-header h2 {
  font-size: 1.1rem;
  font-weight: 700;
}

.file-list-header .count {
  color: var(--pink);
  font-size: 0.8rem;
  background: rgba(232, 121, 168, 0.1);
  padding: 4px 14px;
  border-radius: 20px;
  font-weight: 600;
  border: 1px solid rgba(232, 121, 168, 0.2);
}

.file-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-bottom: 20px;
}

.file-table th {
  text-align: left;
  padding: 12px 16px;
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
}

.file-table th:first-child { border-radius: 10px 0 0 0; }
.file-table th:last-child { border-radius: 0 10px 0 0; }

.file-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
  transition: all var(--transition);
}

.file-table tr:hover td {
  background: rgba(168, 85, 247, 0.04);
}

.file-table tr:hover td:first-child {
  box-shadow: inset 3px 0 0 var(--pink);
}

.file-table .filename {
  font-weight: 500;
  max-width: 250px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-table .meta {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.file-table .actions {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
}

.btn-icon {
  padding: 7px 14px;
  border: 1px solid var(--border);
  background: transparent;
  border-radius: 20px;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.8rem;
  transition: all var(--transition);
  white-space: nowrap;
  font-weight: 500;
}

.btn-icon:hover {
  border-color: var(--purple);
  color: var(--purple);
  transform: translateY(-1px);
  background: rgba(168, 85, 247, 0.08);
}

.btn-icon.delete:hover {
  border-color: var(--red);
  color: var(--red);
  background: rgba(248, 113, 113, 0.08);
}

.btn-icon.copy:hover {
  border-color: var(--green);
  color: var(--green);
  background: rgba(74, 222, 128, 0.08);
}

.empty-state {
  text-align: center;
  padding: 64px 40px;
  color: var(--text-muted);
}

.empty-state .icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  opacity: 0.5;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 14px 24px;
  border-radius: 14px;
  font-size: 0.9rem;
  color: white;
  animation: toastIn 0.5s cubic-bezier(0.16, 1, 0.3, 1), toastOut 0.3s ease 3.7s forwards;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  max-width: 360px;
  font-weight: 600;
  backdrop-filter: blur(8px);
}

.toast.success { background: rgba(74, 222, 128, 0.9); }
.toast.error { background: rgba(248, 113, 113, 0.9); }
.toast.info { background: rgba(168, 85, 247, 0.9); }

@keyframes toastIn {
  from { transform: translateX(120px) scale(0.9); opacity: 0; }
  50% { transform: translateX(-5px) scale(1.02); }
  to { transform: translateX(0) scale(1); opacity: 1; }
}

@keyframes toastOut {
  from { opacity: 1; }
  to { opacity: 0; transform: translateY(-10px); }
}

/* Footer */
.vault-footer {
  text-align: center;
  padding: 36px 0 20px;
  margin-top: 48px;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
}

.vault-footer a {
  color: var(--pink);
  text-decoration: none;
  transition: color var(--transition);
}

.vault-footer a:hover {
  color: var(--purple);
}

/* Responsive */
@media (max-width: 640px) {
  .container { padding: 16px; }
  header { flex-direction: column; gap: 12px; text-align: center; }
  .dropzone { padding: 36px 24px; }
  .file-table { font-size: 0.85rem; }
  .file-table th:nth-child(3),
  .file-table td:nth-child(3),
  .file-table th:nth-child(4),
  .file-table td:nth-child(4) {
    display: none;
  }
  .upload-options .expiry-row { flex-direction: column; }
  .upload-actions { flex-direction: column; }
  .modal { margin: 16px; padding: 32px 24px; }
  .vault-logo { width: 90px; height: 90px; }
}

/* Download page */
.download-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.download-card {
  background: rgba(20, 20, 37, 0.95);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 44px;
  width: 100%;
  max-width: 480px;
  text-align: center;
  margin: 20px;
  box-shadow: 
    0 0 80px rgba(168, 85, 247, 0.06),
    0 0 160px rgba(232, 121, 168, 0.03),
    0 32px 100px rgba(0, 0, 0, 0.4);
  animation: modalSlideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.download-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: linear-gradient(135deg, rgba(232, 121, 168, 0.4), rgba(168, 85, 247, 0.15), rgba(103, 232, 249, 0.3));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.download-card h2 {
  margin-bottom: 4px;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.download-card .file-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.download-card .decryption-section {
  margin-top: 16px;
}

.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--pink);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-right: 8px;
  vertical-align: middle;
}

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