/* ============================================================
   IQReports Platform — Design System & Component Styles
   Version: 2.0 | MOD-08 Frontend Portal
   ============================================================ */

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
  /* Brand Palette */
  --iq-primary: #1a3a5c;
  --iq-primary-light: #2a5a8c;
  --iq-primary-dark: #0e2440;
  --iq-accent: #00b4d8;
  --iq-accent-light: #48cae4;
  --iq-accent-dark: #0096b7;

  /* Semantic Colors */
  --iq-success: #2dc653;
  --iq-warning: #f4a261;
  --iq-danger: #e63946;
  --iq-info: #457b9d;

  /* Neutral Scale */
  --iq-white: #ffffff;
  --iq-gray-50: #f8f9fa;
  --iq-gray-100: #edf2f4;
  --iq-gray-200: #d6dde2;
  --iq-gray-300: #adb5bd;
  --iq-gray-400: #8d99ae;
  --iq-gray-500: #6c757d;
  --iq-gray-600: #495057;
  --iq-gray-700: #343a40;
  --iq-gray-800: #212529;
  --iq-gray-900: #121417;

  /* Surfaces */
  --iq-bg-body: var(--iq-gray-50);
  --iq-bg-surface: var(--iq-white);
  --iq-bg-sidebar: var(--iq-primary-dark);
  --iq-bg-header: var(--iq-white);
  --iq-bg-input: var(--iq-white);
  --iq-border-color: var(--iq-gray-200);

  /* Text */
  --iq-text-primary: var(--iq-gray-800);
  --iq-text-secondary: var(--iq-gray-500);
  --iq-text-inverse: var(--iq-white);
  --iq-text-link: var(--iq-accent-dark);

  /* Typography */
  --iq-font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --iq-font-display: 'Outfit', var(--iq-font-body);
  --iq-font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --iq-fs-xs: 0.75rem;
  --iq-fs-sm: 0.8125rem;
  --iq-fs-base: 0.9375rem;
  --iq-fs-md: 1.0625rem;
  --iq-fs-lg: 1.25rem;
  --iq-fs-xl: 1.5rem;
  --iq-fs-2xl: 2rem;
  --iq-fs-3xl: 2.5rem;
  --iq-fw-normal: 400;
  --iq-fw-medium: 500;
  --iq-fw-semibold: 600;
  --iq-fw-bold: 700;

  /* Spacing */
  --iq-space-xs: 0.25rem;
  --iq-space-sm: 0.5rem;
  --iq-space-md: 1rem;
  --iq-space-lg: 1.5rem;
  --iq-space-xl: 2rem;
  --iq-space-2xl: 3rem;

  /* Layout */
  --iq-sidebar-width: 280px;
  --iq-sidebar-collapsed-width: 0px;
  --iq-header-height: 56px;
  --iq-border-radius: 8px;
  --iq-border-radius-sm: 4px;
  --iq-border-radius-lg: 12px;

  /* Shadows */
  --iq-shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --iq-shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --iq-shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --iq-shadow-xl: 0 16px 48px rgba(0,0,0,0.16);

  /* Transitions */
  --iq-transition-fast: 150ms ease;
  --iq-transition-base: 250ms ease;
  --iq-transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-index Scale */
  --iq-z-sidebar: 1040;
  --iq-z-header: 1030;
  --iq-z-overlay: 1050;
  --iq-z-toast: 1080;
}

/* --- Dark Theme --- */
[data-theme="dark"] {
  --iq-bg-body: #0d1117;
  --iq-bg-surface: #161b22;
  --iq-bg-sidebar: #010409;
  --iq-bg-header: #161b22;
  --iq-bg-input: #0d1117;
  --iq-border-color: #30363d;
  --iq-text-primary: #e6edf3;
  --iq-text-secondary: #8b949e;
  --iq-text-inverse: #0d1117;
  --iq-text-link: var(--iq-accent-light);
  --iq-shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
  --iq-shadow-md: 0 4px 12px rgba(0,0,0,0.3);
  --iq-shadow-lg: 0 8px 30px rgba(0,0,0,0.4);
}

/* --- Base Reset & Globals --- */
*, *::before, *::after { box-sizing: border-box; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--iq-font-body);
  font-size: var(--iq-fs-base);
  font-weight: var(--iq-fw-normal);
  line-height: 1.6;
  color: var(--iq-text-primary);
  background-color: var(--iq-bg-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--iq-text-link);
  text-decoration: none;
  transition: color var(--iq-transition-fast);
}
a:hover { color: var(--iq-accent); }

/* --- Utility Classes --- */
.iq-text-muted { color: var(--iq-text-secondary) !important; }
.iq-text-accent { color: var(--iq-accent) !important; }
.iq-text-danger { color: var(--iq-danger) !important; }
.iq-text-success { color: var(--iq-success) !important; }
.iq-fw-medium { font-weight: var(--iq-fw-medium) !important; }
.iq-fw-semibold { font-weight: var(--iq-fw-semibold) !important; }
.iq-fw-bold { font-weight: var(--iq-fw-bold) !important; }
.iq-font-display { font-family: var(--iq-font-display) !important; }
.iq-font-mono { font-family: var(--iq-font-mono) !important; }

/* ============================================================
   LOGIN PAGE
   ============================================================ */

.iq-login-page {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(0,180,216,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(26,58,92,0.06) 0%, transparent 50%),
    var(--iq-bg-body);
  padding: var(--iq-space-lg);
  padding-top: env(safe-area-inset-top, 0);
  padding-bottom: env(safe-area-inset-bottom, 0);
}

.iq-login-card {
  width: 100%;
  max-width: 420px;
  background: var(--iq-bg-surface);
  border-radius: var(--iq-border-radius-lg);
  box-shadow: var(--iq-shadow-lg);
  padding: var(--iq-space-2xl);
  position: relative;
  overflow: hidden;
  animation: iqFadeUp 0.5s ease both;
}

.iq-login-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--iq-primary), var(--iq-accent));
}

.iq-login-brand {
  text-align: center;
  margin-bottom: var(--iq-space-xl);
}

.iq-login-brand h1 {
  font-family: var(--iq-font-display);
  font-size: var(--iq-fs-2xl);
  font-weight: var(--iq-fw-bold);
  color: var(--iq-primary);
  margin: 0 0 var(--iq-space-xs);
  letter-spacing: -0.02em;
}

.iq-login-brand .iq-brand-dot {
  color: var(--iq-accent);
}

.iq-login-brand p {
  color: var(--iq-text-secondary);
  font-size: var(--iq-fs-sm);
  margin: 0;
}

.iq-login-form .iq-form-group {
  margin-bottom: var(--iq-space-lg);
}

.iq-login-form label {
  display: block;
  font-size: var(--iq-fs-sm);
  font-weight: var(--iq-fw-medium);
  color: var(--iq-text-secondary);
  margin-bottom: var(--iq-space-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.iq-login-form input[type="text"],
.iq-login-form input[type="password"] {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--iq-font-body);
  font-size: var(--iq-fs-base);
  color: var(--iq-text-primary);
  background: var(--iq-bg-input);
  border: 1.5px solid var(--iq-border-color);
  border-radius: var(--iq-border-radius);
  outline: none;
  transition: border-color var(--iq-transition-fast), box-shadow var(--iq-transition-fast);
}

.iq-login-form input:focus {
  border-color: var(--iq-accent);
  box-shadow: 0 0 0 3px rgba(0,180,216,0.15);
}

.iq-login-form input::placeholder {
  color: var(--iq-gray-300);
}

.iq-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.8rem 1.5rem;
  font-family: var(--iq-font-body);
  font-size: var(--iq-fs-base);
  font-weight: var(--iq-fw-semibold);
  color: var(--iq-white);
  background: linear-gradient(135deg, var(--iq-primary), var(--iq-primary-light));
  border: none;
  border-radius: var(--iq-border-radius);
  cursor: pointer;
  transition: all var(--iq-transition-base);
  position: relative;
  overflow: hidden;
  gap: 0.5rem;
}

.iq-btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--iq-primary-light), var(--iq-accent-dark));
  box-shadow: var(--iq-shadow-md);
  transform: translateY(-1px);
}

.iq-btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.iq-btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.iq-btn-primary .iq-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: var(--iq-white);
  border-radius: 50%;
  animation: iqSpin 0.7s linear infinite;
}

.iq-login-alert {
  padding: 0.75rem 1rem;
  border-radius: var(--iq-border-radius-sm);
  font-size: var(--iq-fs-sm);
  margin-bottom: var(--iq-space-lg);
  display: none;
  animation: iqFadeIn 0.25s ease;
}

.iq-login-alert.is-error {
  background: rgba(230,57,70,0.08);
  border: 1px solid rgba(230,57,70,0.2);
  color: var(--iq-danger);
  display: block;
}

/* ============================================================
   DASHBOARD LAYOUT
   ============================================================ */

.iq-app {
  display: flex;
  min-height: 100vh;
  min-height: 100dvh;
}

/* --- Sidebar --- */
.iq-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--iq-sidebar-width);
  background: var(--iq-bg-sidebar);
  color: var(--iq-text-inverse);
  z-index: var(--iq-z-sidebar);
  display: flex;
  flex-direction: column;
  transition: transform var(--iq-transition-slow);
  overflow: hidden;
}

.iq-sidebar-brand {
  padding: var(--iq-space-lg) var(--iq-space-lg);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
}

.iq-sidebar-brand h2 {
  font-family: var(--iq-font-display);
  font-size: var(--iq-fs-lg);
  font-weight: var(--iq-fw-bold);
  margin: 0;
  letter-spacing: -0.01em;
}

.iq-sidebar-brand h2 .iq-brand-dot { color: var(--iq-accent-light); }

.iq-sidebar-brand small {
  font-size: var(--iq-fs-xs);
  color: rgba(255,255,255,0.45);
  font-weight: var(--iq-fw-normal);
}

.iq-sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--iq-space-md) 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.15) transparent;
}

.iq-sidebar-section {
  padding: var(--iq-space-sm) var(--iq-space-lg) var(--iq-space-xs);
  font-size: var(--iq-fs-xs);
  font-weight: var(--iq-fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.35);
}

.iq-nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem var(--iq-space-lg);
  color: rgba(255,255,255,0.7);
  font-size: var(--iq-fs-sm);
  font-weight: var(--iq-fw-medium);
  cursor: pointer;
  transition: all var(--iq-transition-fast);
  border-left: 3px solid transparent;
  text-decoration: none;
}

.iq-nav-item:hover {
  color: var(--iq-white);
  background: rgba(255,255,255,0.06);
}

.iq-nav-item.is-active {
  color: var(--iq-white);
  background: rgba(0,180,216,0.12);
  border-left-color: var(--iq-accent-light);
}

.iq-nav-item i {
  font-size: 1.1rem;
  width: 1.3rem;
  text-align: center;
  flex-shrink: 0;
}

.iq-sidebar-footer {
  padding: var(--iq-space-md) var(--iq-space-lg);
  border-top: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
}

.iq-sidebar-footer .iq-user-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--iq-space-sm);
}

.iq-user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--iq-accent), var(--iq-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--iq-fw-bold);
  font-size: var(--iq-fs-sm);
  flex-shrink: 0;
}

.iq-user-details {
  overflow: hidden;
}

.iq-user-name {
  font-size: var(--iq-fs-sm);
  font-weight: var(--iq-fw-semibold);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.iq-user-role {
  font-size: var(--iq-fs-xs);
  color: rgba(255,255,255,0.45);
  text-transform: capitalize;
}

.iq-btn-logout {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-family: var(--iq-font-body);
  font-size: var(--iq-fs-xs);
  font-weight: var(--iq-fw-medium);
  color: rgba(255,255,255,0.55);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--iq-border-radius-sm);
  cursor: pointer;
  transition: all var(--iq-transition-fast);
}

.iq-btn-logout:hover {
  color: var(--iq-white);
  background: rgba(230,57,70,0.15);
  border-color: rgba(230,57,70,0.3);
}

/* --- Main Content Area --- */
.iq-main {
  flex: 1;
  margin-left: var(--iq-sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  transition: margin-left var(--iq-transition-slow);
}

/* --- Header --- */
.iq-header {
  position: sticky;
  top: 0;
  z-index: var(--iq-z-header);
  height: var(--iq-header-height);
  background: var(--iq-bg-header);
  border-bottom: 1px solid var(--iq-border-color);
  display: flex;
  align-items: center;
  padding: 0 var(--iq-space-lg);
  gap: var(--iq-space-md);
  box-shadow: var(--iq-shadow-sm);
}

.iq-header-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  color: var(--iq-text-primary);
  font-size: 1.25rem;
  cursor: pointer;
  border-radius: var(--iq-border-radius-sm);
  transition: background var(--iq-transition-fast);
  flex-shrink: 0;
}

.iq-header-toggle:hover {
  background: var(--iq-gray-100);
}

.iq-header-title {
  flex: 1;
  font-family: var(--iq-font-display);
  font-size: var(--iq-fs-md);
  font-weight: var(--iq-fw-semibold);
  color: var(--iq-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.iq-header-actions {
  display: flex;
  align-items: center;
  gap: var(--iq-space-sm);
  flex-shrink: 0;
}

.iq-connection-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.6rem;
  font-size: var(--iq-fs-xs);
  font-weight: var(--iq-fw-medium);
  border-radius: 20px;
  background: rgba(45,198,83,0.1);
  color: var(--iq-success);
}

.iq-connection-badge.is-offline {
  background: rgba(230,57,70,0.1);
  color: var(--iq-danger);
}

.iq-connection-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.iq-btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  color: var(--iq-text-secondary);
  font-size: 1.1rem;
  cursor: pointer;
  border-radius: var(--iq-border-radius-sm);
  transition: all var(--iq-transition-fast);
}

.iq-btn-icon:hover {
  background: var(--iq-gray-100);
  color: var(--iq-text-primary);
}

/* --- Report Iframe Container --- */
.iq-report-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
}

.iq-report-welcome {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--iq-space-2xl);
  text-align: center;
  color: var(--iq-text-secondary);
  animation: iqFadeIn 0.4s ease;
}

.iq-report-welcome i {
  font-size: 3rem;
  color: var(--iq-gray-200);
  margin-bottom: var(--iq-space-md);
}

.iq-report-welcome h3 {
  font-family: var(--iq-font-display);
  font-size: var(--iq-fs-xl);
  font-weight: var(--iq-fw-semibold);
  color: var(--iq-text-primary);
  margin: 0 0 var(--iq-space-sm);
}

.iq-report-welcome p {
  font-size: var(--iq-fs-sm);
  margin: 0;
  max-width: 360px;
}

.iq-report-iframe {
  width: 100%;
  height: 100%;
  flex: 1;
  border: none;
  background: var(--iq-bg-body);
}

.iq-report-loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--iq-bg-body);
  z-index: 5;
  transition: opacity var(--iq-transition-base);
}

.iq-report-loading.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.iq-report-loading .iq-loader {
  width: 40px;
  height: 40px;
  border: 3px solid var(--iq-gray-200);
  border-top-color: var(--iq-accent);
  border-radius: 50%;
  animation: iqSpin 0.8s linear infinite;
}

/* --- Overlay for mobile sidebar --- */
.iq-sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: calc(var(--iq-z-sidebar) - 1);
  backdrop-filter: blur(2px);
  animation: iqFadeIn 0.25s ease;
}

/* --- Toast / Notification --- */
.iq-toast-container {
  position: fixed;
  top: calc(var(--iq-header-height) + var(--iq-space-md));
  right: var(--iq-space-md);
  z-index: var(--iq-z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--iq-space-sm);
  pointer-events: none;
}

.iq-toast {
  padding: 0.75rem 1rem;
  background: var(--iq-bg-surface);
  border-radius: var(--iq-border-radius);
  box-shadow: var(--iq-shadow-lg);
  font-size: var(--iq-fs-sm);
  color: var(--iq-text-primary);
  border-left: 3px solid var(--iq-info);
  pointer-events: auto;
  animation: iqSlideInRight 0.3s ease;
  max-width: 340px;
}

.iq-toast.is-error { border-left-color: var(--iq-danger); }
.iq-toast.is-success { border-left-color: var(--iq-success); }

/* ============================================================
   RESPONSIVE — Mobile First Breakpoints
   ============================================================ */

@media (max-width: 991.98px) {
  .iq-sidebar {
    transform: translateX(-100%);
  }

  .iq-sidebar.is-open {
    transform: translateX(0);
    box-shadow: var(--iq-shadow-xl);
  }

  .iq-sidebar.is-open + .iq-sidebar-overlay {
    display: block;
  }

  .iq-main {
    margin-left: 0;
  }

  .iq-header-toggle {
    display: flex;
  }
}

@media (max-width: 575.98px) {
  .iq-sidebar {
    width: 85vw;
    max-width: 320px;
  }

  .iq-login-card {
    padding: var(--iq-space-xl) var(--iq-space-lg);
  }

  .iq-header {
    padding: 0 var(--iq-space-md);
  }

  .iq-connection-badge span:not(.iq-connection-dot) {
    display: none;
  }
}

/* ============================================================
   KEYFRAME ANIMATIONS
   ============================================================ */

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

@keyframes iqFadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

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

/* ============================================================
   REPORT GUARD — Unauthenticated State
   ============================================================ */

.iq-guard-block {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--iq-bg-body);
  z-index: 99999;
  font-family: var(--iq-font-body);
  text-align: center;
  padding: var(--iq-space-xl);
}

.iq-guard-block i {
  font-size: 2.5rem;
  color: var(--iq-warning);
  margin-bottom: var(--iq-space-md);
}

.iq-guard-block h3 {
  font-family: var(--iq-font-display);
  font-size: var(--iq-fs-lg);
  font-weight: var(--iq-fw-semibold);
  color: var(--iq-text-primary);
  margin: 0 0 var(--iq-space-sm);
}

.iq-guard-block p {
  font-size: var(--iq-fs-sm);
  color: var(--iq-text-secondary);
  margin: 0 0 var(--iq-space-lg);
}

.iq-guard-block a {
  padding: 0.6rem 1.5rem;
  background: var(--iq-primary);
  color: var(--iq-white);
  border-radius: var(--iq-border-radius);
  font-weight: var(--iq-fw-semibold);
  font-size: var(--iq-fs-sm);
  transition: background var(--iq-transition-fast);
}

.iq-guard-block a:hover {
  background: var(--iq-primary-light);
  color: var(--iq-white);
}

/* ============================================================
   PRINT STYLES (suppress non-content)
   ============================================================ */

@media print {
  .iq-sidebar,
  .iq-header,
  .iq-sidebar-overlay,
  .iq-toast-container { display: none !important; }
  .iq-main { margin-left: 0 !important; }
}