/* ==========================================
   SysOps Console — styles.css
   Dark hacker/dev aesthetic with green accents
   Font: JetBrains Mono + Syne
   ========================================== */

:root {
  --bg-primary: #0a0b0e;
  --bg-secondary: #0f1117;
  --bg-card: #13161e;
  --bg-card-hover: #181c27;
  --bg-input: #0d1018;
  --bg-terminal: #080a0d;
  --border: #1e2535;
  --border-hover: #2d3650;
  --accent: #00ff87;
  --accent-dim: #00cc6a;
  --accent-glow: rgba(0,255,135,0.15);
  --accent-2: #60a5fa;
  --accent-danger: #ff4757;
  --accent-warn: #ffa502;
  --text-primary: #e2e8f0;
  --text-secondary: #7e8fa8;
  --text-muted: #4a5568;
  --text-code: #00ff87;
  --sidebar-width: 240px;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --transition: 0.2s ease;
}

[data-theme="light"] {
  --bg-primary: #f0f2f5;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f8f9fb;
  --bg-input: #f5f7fa;
  --bg-terminal: #1a1d2e;
  --border: #e2e8f0;
  --border-hover: #cbd5e0;
  --accent: #059669;
  --accent-dim: #047857;
  --accent-glow: rgba(5,150,105,0.1);
  --accent-2: #3b82f6;
  --text-primary: #1a202c;
  --text-secondary: #4a5568;
  --text-muted: #a0aec0;
  --text-code: #059669;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
}

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

body {
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg-primary);
  color: var(--text-primary);
  display: flex;
  min-height: 100vh;
  transition: background var(--transition), color var(--transition);
}

/* ======= SCROLLBAR ======= */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border-hover); border-radius: 3px; }

/* ======= SIDEBAR ======= */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform 0.3s ease;
  overflow-y: auto;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 18px;
  border-bottom: 1px solid var(--border);
}

.logo-icon {
  font-size: 24px;
  filter: drop-shadow(0 0 8px var(--accent));
}

.logo-title {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 18px;
  color: var(--text-primary);
  display: block;
}

.logo-sub {
  font-size: 10px;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.sidebar-nav {
  flex: 1;
  padding: 16px 0;
  overflow-y: auto;
}

.nav-group {
  margin-bottom: 24px;
}

.nav-group-label {
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 4px 18px 8px;
  display: block;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  border-left: 3px solid transparent;
  transition: all var(--transition);
  cursor: pointer;
}

.nav-item:hover {
  color: var(--text-primary);
  background: var(--accent-glow);
  border-left-color: var(--accent);
}

.nav-item.active {
  color: var(--accent);
  background: var(--accent-glow);
  border-left-color: var(--accent);
}

.nav-icon {
  width: 20px;
  text-align: center;
  font-size: 14px;
  flex-shrink: 0;
}

.nav-badge {
  margin-left: auto;
  background: var(--border);
  color: var(--text-secondary);
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 20px;
  font-weight: 700;
}

.nav-badge.danger {
  background: rgba(255,71,87,0.2);
  color: var(--accent-danger);
}

.sidebar-footer {
  padding: 16px 18px;
  border-top: 1px solid var(--border);
}

.theme-toggle {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: var(--radius);
  cursor: pointer;
  font-family: inherit;
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition);
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ======= HAMBURGER ======= */
.hamburger {
  display: none;
  position: fixed;
  top: 16px; left: 16px;
  z-index: 200;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 8px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 18px;
  transition: all var(--transition);
}

/* ======= MAIN CONTENT ======= */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--bg-primary);
}

/* ======= HEADER ======= */
.top-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
  position: sticky; top: 0;
  z-index: 50;
  gap: 20px;
  flex-wrap: wrap;
}

.page-title {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 22px;
  color: var(--text-primary);
}

.page-subtitle {
  font-size: 12px;
  color: var(--text-secondary);
  display: block;
  margin-top: 2px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.search-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px;
  transition: border-color var(--transition);
}

.search-bar:focus-within { border-color: var(--accent); }
.search-bar input {
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 12px;
  width: 200px;
}

.search-bar input::placeholder { color: var(--text-muted); }
.search-icon { font-size: 13px; }

.status-dot {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
}

.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.dot.green { background: var(--accent); box-shadow: 0 0 6px var(--accent); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ======= CONTENT SECTIONS ======= */
.content-section {
  display: none;
  padding: 28px;
  flex: 1;
  animation: fadeIn 0.25s ease;
}

.content-section.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ======= TABS ======= */
.tabs-bar {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}

.tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  padding: 10px 18px;
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: -1px;
}

.tab-btn:hover { color: var(--text-primary); }

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 0.2s ease; }

/* ======= CARD GRID ======= */
.card-grid {
  display: grid;
  gap: 20px;
}

.card-grid.cols-2 { grid-template-columns: 1fr 1fr; }

/* ======= CARDS ======= */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.card:hover { border-color: var(--border-hover); }

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 8px;
}

.card-header h3 {
  font-family: 'Syne', sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}

.output-card { display: flex; flex-direction: column; }

/* ======= FORMS ======= */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  margin-bottom: 6px;
  font-weight: 600;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.input-field {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  padding: 10px 12px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.input-field:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.input-field::placeholder { color: var(--text-muted); }
.textarea { resize: vertical; min-height: 80px; }
.select-field { cursor: pointer; }

.req { color: var(--accent-danger); }

/* ======= TOGGLE SWITCH ======= */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 22px;
  cursor: pointer;
}

.toggle-switch input { display: none; }

.slider {
  position: absolute;
  inset: 0;
  background: var(--border);
  border-radius: 22px;
  transition: 0.3s;
}

.slider::before {
  content: '';
  position: absolute;
  width: 16px; height: 16px;
  left: 3px; top: 3px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: 0.3s;
}

input:checked + .slider { background: var(--accent-glow); border: 1px solid var(--accent); }
input:checked + .slider::before {
  transform: translateX(22px);
  background: var(--accent);
}

/* ======= RADIO BUTTONS ======= */
.radio-group { display: flex; flex-direction: column; gap: 10px; }

.radio-label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-secondary);
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.radio-label:hover { border-color: var(--accent); color: var(--text-primary); }
.radio-label input { accent-color: var(--accent); }

/* ======= BUTTONS ======= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-dim);
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}

.btn-ghost:hover { border-color: var(--border-hover); color: var(--text-primary); }

.btn-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

.btn-outline:hover {
  background: var(--accent);
  color: #000;
}

.btn-sm { padding: 6px 12px; font-size: 11px; }

.btn-danger {
  background: transparent;
  color: var(--accent-danger);
  border-color: var(--accent-danger);
}

.btn-danger:hover { background: rgba(255,71,87,0.1); }

.btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 8px; }
.btn-row-sm { display: flex; gap: 6px; flex-wrap: wrap; }

/* ======= BADGE ======= */
.badge {
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid rgba(0,255,135,0.3);
  font-size: 10px;
  padding: 3px 8px;
  border-radius: 20px;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 700;
}

/* ======= TERMINAL ======= */
.terminal-preview {
  background: var(--bg-terminal);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--text-code);
  white-space: pre-wrap;
  word-break: break-all;
  min-height: 160px;
  flex: 1;
  position: relative;
  overflow: auto;
  max-height: 420px;
}

.terminal-preview.terminal-dark {
  background: #050609;
}

.terminal-placeholder { color: var(--text-muted); font-style: italic; }

/* Terminal cursor blink effect */
.terminal-preview::after {
  content: '▋';
  color: var(--accent);
  animation: blink 1s step-end infinite;
  font-size: 14px;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ======= VALIDATION ======= */
.validation-area { margin: 10px 0; }

.validation-msg {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  padding: 8px 12px;
  border-radius: var(--radius);
  margin-bottom: 6px;
}

.validation-msg.ok {
  background: rgba(0,255,135,0.1);
  color: var(--accent);
  border: 1px solid rgba(0,255,135,0.3);
}

.validation-msg.warn {
  background: rgba(255,165,2,0.1);
  color: var(--accent-warn);
  border: 1px solid rgba(255,165,2,0.3);
}

.validation-msg.err {
  background: rgba(255,71,87,0.1);
  color: var(--accent-danger);
  border: 1px solid rgba(255,71,87,0.3);
}

/* ======= INFO BOX ======= */
.info-box {
  background: rgba(96,165,250,0.08);
  border: 1px solid rgba(96,165,250,0.2);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 12px;
  color: var(--accent-2);
  margin-top: 12px;
}

.info-box code {
  background: rgba(96,165,250,0.15);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: inherit;
}

/* ======= OS SELECTOR ======= */
.os-selector-card { margin-bottom: 24px; }

.os-grid {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.os-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: all var(--transition);
  font-weight: 600;
}

.os-btn:hover { border-color: var(--accent); color: var(--text-primary); }

.os-btn.active {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--accent);
}

/* ======= PROBLEMS GRID ======= */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
  flex-wrap: wrap;
}

.filter-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chip {
  padding: 6px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
  transition: all var(--transition);
  font-weight: 600;
}

.chip:hover { border-color: var(--accent); color: var(--text-primary); }

.chip.active {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--accent);
}

.problems-search { min-width: 200px; }

.problems-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 16px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  transition: all var(--transition);
  cursor: default;
}

.problem-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.problem-card.hidden { display: none; }

.problem-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 10px;
  gap: 8px;
}

.problem-title {
  font-family: 'Syne', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  flex: 1;
}

.problem-cat {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 20px;
  font-weight: 700;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.cat-email { background: rgba(96,165,250,0.15); color: var(--accent-2); }
.cat-security { background: rgba(255,71,87,0.15); color: var(--accent-danger); }
.cat-network { background: rgba(255,165,2,0.15); color: var(--accent-warn); }
.cat-service { background: rgba(0,255,135,0.15); color: var(--accent); }
.cat-system { background: rgba(160,160,160,0.15); color: #a0a0b0; }

.problem-desc {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.problem-cmd {
  background: var(--bg-terminal);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  font-size: 11.5px;
  color: var(--text-code);
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 120px;
  overflow: auto;
  margin-bottom: 10px;
  line-height: 1.6;
}

.problem-footer {
  display: flex;
  justify-content: flex-end;
}

/* ======= CUSTOM COMMANDS LIST ======= */
#custom-commands-list .custom-cmd-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 10px;
  transition: border-color var(--transition);
}

#custom-commands-list .custom-cmd-item:hover { border-color: var(--border-hover); }

.custom-cmd-title {
  font-weight: 700;
  font-size: 13px;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.custom-cmd-desc {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.custom-cmd-code {
  background: var(--bg-terminal);
  border-radius: var(--radius);
  padding: 8px 10px;
  font-size: 11.5px;
  color: var(--text-code);
  white-space: pre-wrap;
  margin-bottom: 8px;
}

/* ======= SAVED CONFIGS ======= */
.saved-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 10px;
}

.saved-item-info { flex: 1; }

.saved-item-title {
  font-weight: 700;
  font-size: 13px;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.saved-item-preview {
  font-size: 11.5px;
  color: var(--text-secondary);
  font-family: monospace;
  word-break: break-all;
}

.saved-item-date {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 4px;
}

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

/* ======= EMPTY STATE ======= */
.empty-state {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
  font-size: 13px;
}

/* ======= TOAST ======= */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 12px 18px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 4px 20px rgba(0,255,135,0.2);
  animation: slideIn 0.3s ease, fadeOut 0.4s ease 1.8s forwards;
  display: flex;
  align-items: center;
  gap: 8px;
  pointer-events: auto;
}

.toast.error {
  border-color: var(--accent-danger);
  color: var(--accent-danger);
  box-shadow: 0 4px 20px rgba(255,71,87,0.2);
}

@keyframes slideIn {
  from { transform: translateX(60px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; transform: translateX(30px); }
}

/* ======= DKIM TOOL EXTRAS ======= */
.dkim-path-preview {
  background: var(--bg-terminal);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin: 4px 0 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.path-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 11.5px;
  flex-wrap: wrap;
}

.path-label {
  color: var(--text-muted);
  white-space: nowrap;
  min-width: 80px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.path-row code {
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  word-break: break-all;
  font-size: 11px;
}

.dkim-step-tabs {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.dkim-step-btn {
  padding: 5px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 11px;
  cursor: pointer;
  transition: all var(--transition);
  font-weight: 600;
}

.dkim-step-btn:hover { border-color: var(--accent); color: var(--text-primary); }
.dkim-step-btn.active {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--accent);
}

/* ======= RESPONSIVE ======= */
@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 30px rgba(0,0,0,0.5);
  }
  .hamburger { display: block; }
  .main-content { margin-left: 0; }
  .card-grid.cols-2 { grid-template-columns: 1fr; }
  .content-section { padding: 16px; }
  .top-header { padding: 16px; padding-left: 56px; }
  .search-bar input { width: 140px; }
}

@media (max-width: 600px) {
  .problems-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .tabs-bar { overflow-x: auto; }
  .filter-bar { flex-direction: column; align-items: flex-start; }
}