/**
 * SmΔrt SPA Base Styles v1.0
 * Unified CSS for all SmΔrt SPAs
 * Style reference: api-settings.html
 */

/* ============================================================
   ROOT VARIABLES - API-SETTINGS STYLE
   ============================================================ */
:root {
  /* === Core Colors === */
  --spa-primary: #6d9eeb;
  --spa-secondary: #8bb0f0;
  --spa-accent: #5a87d6;

  /* === Background System === */
  --spa-bg-dark: #151620;
  --spa-bg-body: linear-gradient(135deg, #151620, #0f1419);
  --spa-bg-card: #1a1d2e;
  --spa-bg-header: linear-gradient(135deg, #2d3a5a, #1a2332);
  --spa-bg-section: #2d3a5a;
  --spa-bg-footer: #1a2332;

  /* === Text Colors === */
  --spa-text: #e0e0e0;
  --spa-text-muted: #888;
  --spa-text-heading: #ffffff;

  /* === Status Colors === */
  --spa-success: #4ade80;
  --spa-error: #f87171;
  --spa-warning: #fbbf24;
  --spa-info: #60a5fa;

  /* === Delta Brand Colors === */
  --delta-cyan: #00ffff;
  --delta-green: #1dff00;
  --delta-yellow: #fcf20a;
  --delta-purple: #6366f1;

  /* === Borders & Shadows === */
  --spa-border: #333;
  --spa-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
  --spa-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.5);

  /* === Dimensions === */
  --spa-width: 420px;
  --spa-max-width: 95vw;
  --spa-max-height: 650px;
  --spa-radius: 8px;
  --spa-radius-sm: 4px;
  --spa-radius-lg: 12px;

  /* === Typography === */
  --spa-font: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  --spa-font-size: 14px;
  --spa-line-height: 1.5;

  /* === Transitions === */
  --spa-transition: 0.2s ease;
  --spa-transition-slow: 0.3s ease;

  /* === Scrollbar === */
  --scrollbar-width: 6px;
  --scrollbar-track: #1a2332;
  --scrollbar-thumb: #4a5568;
  --scrollbar-thumb-hover: #6b7280;
}

/* ============================================================
   LIGHT THEME OVERRIDE
   ============================================================ */
[data-theme="light"] {
  --spa-primary: #0284c7;
  --spa-secondary: #38bdf8;
  --spa-accent: #0369a1;

  --spa-bg-dark: #f8fafc;
  --spa-bg-body: linear-gradient(135deg, #f0f9ff, #e0f2fe);
  --spa-bg-card: #ffffff;
  --spa-bg-header: linear-gradient(135deg, #e0f2fe, #bae6fd);
  --spa-bg-section: #f0f9ff;
  --spa-bg-footer: #e0f2fe;

  --spa-text: #0c4a6e;
  --spa-text-muted: #64748b;
  --spa-text-heading: #075985;

  --spa-border: #bae6fd;
  --spa-shadow: 0 4px 12px rgba(2, 132, 199, 0.15);

  --scrollbar-track: #e0f2fe;
  --scrollbar-thumb: #7dd3fc;
  --scrollbar-thumb-hover: #38bdf8;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: var(--spa-font-size);
}

body {
  font-family: var(--spa-font);
  background: var(--spa-bg-body);
  color: var(--spa-text);
  line-height: var(--spa-line-height);
  min-height: 100dvh;
  height: 100dvh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 0;
  margin: 0;
  overflow: hidden;
}

/* ============================================================
   SPA CONTAINER
   ============================================================ */
.spa-container {
  width: 100%;
  height: 100%;
  max-width: var(--spa-width);
  max-height: 100dvh;
  margin: 0 auto;
  background: var(--spa-bg-card);
  border-radius: 0;
  box-shadow: none;
  overflow-y: auto;
  overflow-x: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
}

/* Standalone/Detached mode */
.detached-mode .spa-container {
  max-height: var(--spa-max-height);
  border-radius: var(--spa-radius);
  box-shadow: var(--spa-shadow);
  margin-top: 10px;
}

/* ============================================================
   HEADER
   ============================================================ */
.spa-header {
  background: var(--spa-bg-header);
  padding: 20px;
  text-align: center;
  border-bottom: 1px solid var(--spa-border);
  position: relative;
  flex-shrink: 0;
}

.spa-header h1 {
  font-size: 1.5rem;
  color: var(--spa-text-heading);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 0;
}

.spa-header p {
  color: var(--spa-text-muted);
  font-size: 0.85em;
  margin-top: 8px;
}

/* Delta symbol in title */
.delta-symbol {
  color: var(--delta-cyan);
  font-weight: 700;
  transition:
    color var(--spa-transition-slow),
    text-shadow var(--spa-transition-slow);
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

/* ============================================================
   NAVIGATION BUTTONS
   ============================================================ */
.spa-nav-back {
  position: absolute;
  top: 8px;
  left: 8px;
  background: rgba(109, 158, 235, 0.2);
  border: none;
  color: var(--spa-primary);
  width: 28px;
  height: 28px;
  border-radius: var(--spa-radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--spa-transition);
  z-index: 10;
}

.spa-nav-back:hover {
  background: rgba(109, 158, 235, 0.3);
  transform: scale(1.1);
}

.spa-nav-back svg {
  width: 14px;
  height: 14px;
}

.spa-nav-close {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(248, 113, 113, 0.1);
  border: none;
  color: var(--spa-error);
  width: 20px;
  height: 20px;
  border-radius: var(--spa-radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--spa-transition);
  z-index: 10;
  font-size: 14px;
  font-weight: bold;
}

.spa-nav-close:hover {
  background: rgba(248, 113, 113, 0.2);
  transform: scale(1.1);
}

/* Hide close in iframe mode */
.in-iframe .spa-nav-close,
.widget-mode .spa-nav-close {
  display: none !important;
}

/* ============================================================
   CONTENT AREA
   ============================================================ */
.spa-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 20px;
}

/* ============================================================
   COLLAPSIBLE SECTIONS
   ============================================================ */
.spa-section {
  margin-bottom: 12px;
  border: 1px solid var(--spa-border);
  border-radius: var(--spa-radius);
  overflow: hidden;
  background: var(--spa-bg-section);
}

.spa-section-btn {
  width: 100%;
  padding: 12px 15px;
  background: var(--spa-bg-section);
  border: none;
  color: var(--spa-text);
  font-size: 0.95em;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background-color var(--spa-transition);
}

.spa-section-btn:hover {
  background: #3a4a6a;
}

.spa-section-btn span {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Delta triangle collapse indicator */
.spa-collapse-arrow {
  width: 16px;
  height: 16px;
  transition: transform var(--spa-transition-slow);
}

.spa-collapse-arrow svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: var(--delta-cyan);
  stroke-width: 2;
}

.spa-section.collapsed .spa-collapse-arrow {
  transform: rotate(180deg);
}

.spa-section-content {
  padding: 15px;
  border-top: 1px solid var(--spa-border);
  max-height: 1000px;
  overflow: hidden;
  transition:
    max-height var(--spa-transition-slow),
    padding var(--spa-transition-slow);
}

.spa-section.collapsed .spa-section-content {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.spa-btn {
  padding: 8px 12px;
  border: none;
  border-radius: var(--spa-radius-sm);
  font-size: 0.85em;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--spa-transition);
  text-align: center;
}

.spa-btn:hover {
  transform: translateY(-1px);
}

.spa-btn-primary {
  background: var(--spa-primary);
  color: #1e3a5f;
}

.spa-btn-success {
  background: var(--spa-success);
  color: #1e3a5f;
}

.spa-btn-warning {
  background: var(--spa-warning);
  color: #1e3a5f;
}

.spa-btn-info {
  background: var(--spa-info);
  color: #1e3a5f;
}

.spa-btn-purple {
  background: #a78bfa;
  color: #1e3a5f;
}

.spa-btn:disabled {
  background: #444;
  color: #888;
  cursor: not-allowed;
  transform: none;
}

/* ============================================================
   FOOTER ACTIONS
   ============================================================ */
.spa-footer {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  padding: 15px;
  background: var(--spa-bg-footer);
  border-top: 1px solid var(--spa-border);
  flex-shrink: 0;
}

.spa-footer.cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.spa-footer.cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* ============================================================
   INPUTS
   ============================================================ */
.spa-input,
.spa-select {
  width: 100%;
  padding: 10px 12px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--spa-border);
  border-radius: var(--spa-radius-sm);
  color: var(--spa-text);
  font-size: 0.9em;
  transition: all var(--spa-transition);
}

.spa-input:focus,
.spa-select:focus {
  outline: none;
  border-color: var(--spa-primary);
  box-shadow: 0 0 0 2px rgba(109, 158, 235, 0.2);
}

.spa-input::placeholder {
  color: var(--spa-text-muted);
}

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar {
  width: var(--scrollbar-width);
}

::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

/* ============================================================
   TOAST NOTIFICATIONS
   ============================================================ */
.spa-toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--spa-bg-section);
  color: var(--spa-text);
  padding: 12px 24px;
  border-radius: var(--spa-radius);
  box-shadow: var(--spa-shadow);
  opacity: 0;
  transition: all var(--spa-transition-slow);
  z-index: 9999;
}

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

.spa-toast.success {
  border-left: 4px solid var(--spa-success);
}

.spa-toast.error {
  border-left: 4px solid var(--spa-error);
}

.spa-toast.warning {
  border-left: 4px solid var(--spa-warning);
}

.spa-toast.info {
  border-left: 4px solid var(--spa-info);
}

/* ============================================================
   STATUS INDICATORS
   ============================================================ */
.spa-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 0.75em;
  font-weight: 600;
}

.spa-status-success {
  background: rgba(74, 222, 128, 0.2);
  color: var(--spa-success);
}

.spa-status-error {
  background: rgba(248, 113, 113, 0.2);
  color: var(--spa-error);
}

.spa-status-warning {
  background: rgba(251, 191, 36, 0.2);
  color: var(--spa-warning);
}

.spa-status-info {
  background: rgba(96, 165, 250, 0.2);
  color: var(--spa-info);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 480px) {
  :root {
    --spa-font-size: 13px;
  }

  .spa-header {
    padding: 15px;
  }

  .spa-header h1 {
    font-size: 1.3rem;
  }

  .spa-content {
    padding: 15px;
  }

  .spa-footer {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================================
   ANIMATION UTILITIES
   ============================================================ */
@keyframes spa-fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.spa-animate-in {
  animation: spa-fadeIn var(--spa-transition-slow) ease-out;
}

.spa-pulse {
  animation: spa-pulse 2s infinite;
}