/* ==========================================================================
   VPS Storage & Release Gateway - Core Design Tokens & Styles
   ========================================================================== */

:root {
  --bg-dark: #070a12;
  --bg-card: rgba(18, 26, 43, 0.75);
  --bg-card-hover: rgba(26, 37, 62, 0.85);
  --bg-card-active: rgba(30, 44, 74, 0.95);
  --bg-surface: #0e1526;
  --bg-input: rgba(10, 16, 28, 0.8);

  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-accent: rgba(16, 185, 129, 0.35);
  --border-focus: #06b6d4;

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-emerald: #10b981;
  --accent-emerald-glow: rgba(16, 185, 129, 0.25);
  --accent-cyan: #06b6d4;
  --accent-cyan-glow: rgba(6, 182, 212, 0.25);
  --accent-indigo: #6366f1;
  --accent-violet: #8b5cf6;
  --accent-amber: #f59e0b;
  --accent-rose: #ef4444;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --shadow-glow: 0 0 25px rgba(6, 182, 212, 0.2);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 25%, rgba(6, 182, 212, 0.1) 0%, transparent 40%),
    radial-gradient(circle at 50% 85%, rgba(16, 185, 129, 0.08) 0%, transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
}

/* Glassmorphism containers */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

/* Layout */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Top Navigation Bar */
.top-navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 10, 18, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.75rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: var(--text-main);
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-indigo));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.4);
}

.brand-text h1 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(to right, #fff, #cbd5e1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-text span {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.nav-item:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.05);
}

.nav-item.active {
  color: #fff;
  background: rgba(6, 182, 212, 0.12);
  border-color: rgba(6, 182, 212, 0.3);
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.15);
}

.nav-item i {
  font-size: 1rem;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.auth-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.4rem 0.8rem;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
}

.auth-badge:hover {
  border-color: var(--border-focus);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
}

.status-dot.inactive {
  background: var(--accent-amber);
  box-shadow: 0 0 10px var(--accent-amber);
}

/* Main Content Area */
.main-content {
  flex: 1;
  padding: 2rem;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

/* Hero & Header Section */
.view-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 2rem;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.view-title h2 {
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.35rem;
}

.view-title p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Metric / Stats Cards */
.metrics-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.metric-card {
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45);
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent-cyan);
}

.metric-card.emerald::before { background: var(--accent-emerald); }
.metric-card.violet::before { background: var(--accent-violet); }
.metric-card.amber::before { background: var(--accent-amber); }

.metric-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--accent-cyan);
}

.metric-card.emerald .metric-icon { color: var(--accent-emerald); background: rgba(16, 185, 129, 0.1); }
.metric-card.violet .metric-icon { color: var(--accent-violet); background: rgba(139, 92, 246, 0.1); }
.metric-card.amber .metric-icon { color: var(--accent-amber); background: rgba(245, 158, 11, 0.1); }

.metric-data h3 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.metric-data span {
  color: var(--text-dim);
  font-size: 0.85rem;
  font-weight: 500;
}

/* Action Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), #0284c7);
  color: #fff;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0891b2, #0369a1);
  box-shadow: 0 6px 20px rgba(6, 182, 212, 0.45);
  transform: translateY(-1px);
}

.btn-success {
  background: linear-gradient(135deg, var(--accent-emerald), #059669);
  color: #fff;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
  background: linear-gradient(135deg, #059669, #047857);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  border-color: var(--border-subtle);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: var(--accent-rose);
  border-color: rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  background: var(--accent-rose);
  color: #fff;
}

.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.8rem;
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

/* Filter bar & Tabs */
.filter-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.pill-select {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 9999px;
  padding: 0.35rem 0.9rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.pill-select:hover {
  color: var(--text-main);
  border-color: rgba(255, 255, 255, 0.2);
}

.pill-select.active {
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}

.search-input-box {
  position: relative;
  min-width: 280px;
}

.search-input-box input {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.6rem 1rem 0.6rem 2.4rem;
  color: var(--text-main);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
}

.search-input-box input:focus {
  border-color: var(--accent-cyan);
}

.search-input-box .search-icon {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  pointer-events: none;
}

/* Releases View Specifics */
.releases-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.release-card {
  padding: 1.75rem;
  position: relative;
  transition: border-color 0.2s;
}

.release-card:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.release-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.release-title-area {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.tag-badge {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-violet);
  border: 1px solid rgba(139, 92, 246, 0.3);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
}

.app-badge {
  background: rgba(6, 182, 212, 0.12);
  color: var(--accent-cyan);
  border: 1px solid rgba(6, 182, 212, 0.25);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
}

.mandatory-badge {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.platform-badge {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  text-transform: capitalize;
}

.release-heading {
  font-size: 1.35rem;
  font-weight: 700;
  margin-top: 0.4rem;
  color: #fff;
}

.release-meta {
  color: var(--text-dim);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.25rem;
}

.release-notes-box {
  background: rgba(10, 16, 28, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin: 1.25rem 0;
  font-size: 0.95rem;
  color: #cbd5e1;
  white-space: pre-wrap;
  line-height: 1.6;
}

/* Assets Box */
.assets-box {
  margin-top: 1.25rem;
  background: rgba(14, 21, 38, 0.5);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.assets-box-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin-bottom: 0.85rem;
}

.assets-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.asset-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background: rgba(18, 26, 43, 0.9);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  gap: 1rem;
  flex-wrap: wrap;
}

.asset-info {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.asset-icon {
  font-size: 1.5rem;
  color: var(--accent-cyan);
}

.asset-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
}

.asset-details {
  font-size: 0.75rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-top: 0.2rem;
}

.asset-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.checksum-btn {
  background: transparent;
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  padding: 0.35rem 0.65rem;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: all 0.2s;
}

.checksum-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* Quick Upload Dropzone inside Release */
.quick-upload-dropzone {
  margin-top: 1rem;
  border: 2px dashed rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
  background: rgba(10, 16, 28, 0.4);
  cursor: pointer;
  transition: all 0.2s;
}

.quick-upload-dropzone:hover, .quick-upload-dropzone.dragover {
  border-color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.05);
}

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

/* Files Grid (Storage View) */
.files-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

.file-card {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1rem;
  transition: transform 0.2s, border-color 0.2s;
}

.file-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.2);
}

.file-card-top {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.file-type-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(6, 182, 212, 0.1);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  flex-shrink: 0;
}

.file-meta-content {
  overflow: hidden;
  width: 100%;
}

.file-name-title {
  font-weight: 600;
  font-size: 0.95rem;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-bucket-tag {
  display: inline-block;
  background: rgba(16, 185, 129, 0.12);
  color: var(--accent-emerald);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.7rem;
  font-weight: 600;
  margin-top: 0.25rem;
}

.file-card-details {
  font-size: 0.8rem;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-subtle);
}

.file-card-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-window {
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  width: 100%;
  max-width: 650px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95);
  transition: transform 0.2s ease;
}

.modal-overlay.active .modal-window {
  transform: scale(1);
}

.modal-header {
  padding: 1.5rem 1.75rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem;
  line-height: 1;
}

.modal-close:hover {
  color: #fff;
}

.modal-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.modal-footer {
  padding: 1.25rem 1.75rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  background: rgba(0, 0, 0, 0.2);
}

/* Form Controls */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-control {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.65rem 0.9rem;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
}

.form-control:focus {
  border-color: var(--accent-cyan);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-main);
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent-emerald);
  cursor: pointer;
}

/* Toast Notifications */
#toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-left: 4px solid var(--accent-cyan);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  font-size: 0.9rem;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: slideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  min-width: 280px;
}

.toast.success { border-left-color: var(--accent-emerald); }
.toast.error { border-left-color: var(--accent-rose); }
.toast.warning { border-left-color: var(--accent-amber); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Code Snippet Box (Integration View) */
.code-box {
  background: #090d16;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
  margin-top: 1rem;
}

.code-box-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.code-box pre {
  padding: 1.25rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #a5f3fc;
  line-height: 1.6;
}

/* Empty States */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-dim);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--text-dim);
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .top-navbar {
    padding: 0.75rem 1rem;
  }
  .nav-links {
    display: none; /* Mobile menu can be toggled */
  }
  .main-content {
    padding: 1rem;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
}