/* ============================================================
   FLUXION — GLOBAL STYLES
   Reset, typography, base elements, utilities
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');
@import './variables.css';

/* ---- Reset ---- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--bg-primary);
  transition: background-color var(--transition-slow), color var(--transition-slow);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg, video {
  display: block;
  max-width: 100%;
}

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

a:hover { color: var(--color-accent-hover); }

ul, ol { list-style: none; }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

table { border-collapse: collapse; }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--color-border-strong);
  border-radius: 0 !important;
}
::-webkit-scrollbar-thumb:hover { background: var(--color-text-faint); }

/* ---- Focus states ---- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 0 !important;
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: var(--leading-tight);
  color: var(--color-text);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p { color: var(--color-text-muted); line-height: var(--leading-relaxed); }

strong { font-weight: 600; color: var(--color-text); }

code, kbd, pre {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--bg-code);
  border-radius: 0 !important;
  padding: 2px 6px;
}

/* ---- Buttons (Sharp Geometric / Dynamic Technical) ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: 0 !important;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
  user-select: none;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  line-height: 1;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--transition-fast);
}

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

.btn:active {
  transform: translateY(0);
}

.btn:hover::after { background: rgba(255,255,255,0.08); }
.btn:active::after { background: rgba(0,0,0,0.08); }

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

/* Primary button - sharp cyan technical */
.btn-primary {
  background: var(--color-accent);
  color: #FFFFFF;
  border-color: var(--color-accent);
  box-shadow: 0 2px 0px rgba(0, 0, 0, 0.2);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: #FFFFFF !important;
  box-shadow: 0 4px 12px rgba(0, 168, 216, 0.4);
}

/* Secondary button - sharp technical surface */
.btn-secondary {
  background: var(--bg-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}
.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--bg-elevated);
}

/* Ghost button */
.btn-ghost {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}
.btn-ghost:hover {
  background: var(--color-accent);
  color: #FFFFFF;
}

/* Danger button */
.btn-danger {
  background: var(--color-critical);
  color: #FFFFFF;
  border-color: var(--color-critical);
}
.btn-danger:hover {
  color: #FFFFFF !important;
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.35);
}

/* Success button */
.btn-success {
  background: var(--color-success);
  color: #FFFFFF;
  border-color: var(--color-success);
}
.btn-success:hover {
  color: #FFFFFF !important;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.35);
}

/* Button sizes */
.btn-sm { padding: var(--space-2) var(--space-4); font-size: var(--font-size-xs); border-radius: 0 !important; }
.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--font-size-md); border-radius: 0 !important; }
.btn-xl { padding: var(--space-5) var(--space-10); font-size: var(--font-size-lg); border-radius: 0 !important; }
.btn-icon { padding: var(--space-3); border-radius: 0 !important; aspect-ratio: 1; justify-content: center; }

/* ---- Form elements ---- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
}

.form-label.required::after {
  content: ' *';
  color: var(--color-critical);
}

.form-control {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background: var(--bg-surface);
  border: 1.5px solid var(--color-border);
  border-radius: 0 !important;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px var(--color-cyan-glow);
}

.form-control::placeholder { color: var(--color-text-faint); }

.form-control.error { border-color: var(--color-critical); }
.form-control.success { border-color: var(--color-success); }

.form-hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.form-error {
  font-size: var(--font-size-xs);
  color: var(--color-critical);
  display: none;
}
.form-error.visible { display: block; }

/* Checkbox / Radio */
.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-accent);
  cursor: pointer;
}

.form-check-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  cursor: pointer;
}

/* Select */
select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235A6A8A' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

/* ---- Utility classes ---- */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-left   { text-align: left; }

.text-xs    { font-size: var(--font-size-xs); }
.text-sm    { font-size: var(--font-size-sm); }
.text-base  { font-size: var(--font-size-base); }
.text-lg    { font-size: var(--font-size-lg); }
.text-xl    { font-size: var(--font-size-xl); }
.text-2xl   { font-size: var(--font-size-2xl); }

.text-accent  { color: var(--color-accent); }
.text-muted   { color: var(--color-text-muted); }
.text-faint   { color: var(--color-text-faint); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-critical{ color: var(--color-critical); }

.font-mono { font-family: var(--font-mono); }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.d-flex { display: flex; }
.d-grid { display: grid; }
.d-block { display: block; }
.d-none { display: none; }

.flex-col { flex-direction: column; }
.align-center { align-items: center; }
.align-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

.mt-auto { margin-top: auto; }
.mb-auto { margin-bottom: auto; }
.ml-auto { margin-left: auto; }

.w-full { width: 100%; }
.h-full { height: 100%; }
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.relative { position: relative; }
.absolute { position: absolute; }

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-6) 0;
}

.section-label {
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
}

/* ---- Monospace readout (meter values) ---- */
.value-readout {
  font-family: var(--font-mono);
  font-size: var(--font-size-2xl);
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.value-unit {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-weight: 400;
}

/* ---- Spinner ---- */
@keyframes spin {
  to { transform: rotate(360deg); }
}

.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 0 !important;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

.spinner-lg { width: 40px; height: 40px; border-width: 3px; }

/* ---- Page transitions ---- */
.page-enter {
  animation: pageEnter var(--transition-page) both;
}

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

/* ========================================================
   PAGE LOADING OVERLAY
   Shown on html.flx-loading, hidden on html.flx-ready
   ======================================================== */
.flx-page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  transition: opacity 0.35s ease, visibility 0.35s ease;
  opacity: 1;
  visibility: visible;
}

.flx-page-loader.flx-loader-hiding {
  opacity: 0;
  visibility: hidden;
}

/* Arc spinner ring */
.flx-loader-ring {
  position: relative;
  width: 56px;
  height: 56px;
  flex-shrink: 0;
}

.flx-loader-ring svg {
  width: 56px;
  height: 56px;
  animation: flxSpinRing 1s linear infinite;
}

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

.flx-loader-ring-track {
  fill: none;
  stroke: var(--color-border);
  stroke-width: 3;
}

.flx-loader-ring-arc {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 80 200;
  animation: flxArcPulse 1.5s ease-in-out infinite;
}

@keyframes flxArcPulse {
  0%   { stroke-dasharray: 10 200; stroke-dashoffset: 0; }
  50%  { stroke-dasharray: 120 200; stroke-dashoffset: -40px; }
  100% { stroke-dasharray: 10 200; stroke-dashoffset: -130px; }
}

/* Logo mark inside ring */
.flx-loader-logo {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.flx-loader-logo img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: contain;
  background: #fff;
  padding: 2px;
}

.flx-loader-brand {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.flx-loader-dots {
  display: inline-flex;
  gap: 5px;
  align-items: center;
}

.flx-loader-dots span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: flxDotBounce 1.2s ease infinite;
}

.flx-loader-dots span:nth-child(2) { animation-delay: 0.15s; }
.flx-loader-dots span:nth-child(3) { animation-delay: 0.30s; }

@keyframes flxDotBounce {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50%       { opacity: 1;   transform: scaleY(1.4); }
}

/* ---- LOGO BRANDING (PERFECTLY ROUNDED WHITE BADGE) ---- */
.pub-logo-img,
.footer-logo-img,
.auth-brand-img,
.auth-mobile-logo-img,
.sidebar-brand-logo,
.pub-logo img,
.footer-logo img,
.auth-brand img,
.sidebar-brand img,
.auth-mobile-logo img {
  border-radius: 50% !important;
  object-fit: contain !important;
  aspect-ratio: 1 / 1;
  background: #FFFFFF !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15) !important;
  padding: 3px !important;
  display: inline-block;
  vertical-align: middle;
  filter: none !important;
  box-sizing: border-box !important;
}

/* Sizing tailored to fit text beside it */
.pub-logo-img { width: 38px !important; height: 38px !important; }
.footer-logo-img { width: 38px !important; height: 38px !important; }
.sidebar-brand-logo { width: 34px !important; height: 34px !important; }
.auth-brand-img { width: 44px !important; height: 44px !important; }
.auth-mobile-logo-img { width: 32px !important; height: 32px !important; }

/* ---- Logo Protection: block right-click / drag / save ---- */
.pub-logo-img,
.footer-logo-img,
.sidebar-brand-logo,
.auth-brand-img,
.auth-mobile-logo-img,
.error-brand-logo,
.pub-logo img,
.sidebar-brand img,
.footer-logo img,
.auth-brand img {
  user-select: none !important;
  -webkit-user-select: none !important;
  -webkit-user-drag: none !important;
  pointer-events: none !important;
}