/* ================================================================
   FRACTALIS — High-Performance Digital Art Studio
   ================================================================ */

:root {
  /* Typography */
  --font-display: "Playfair Display", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;

  /* Palette: Minimalist Gallery */
  --color-bg: #050505;
  --color-surface: #101010;
  --color-surface-hover: #1a1a1a;
  --color-border: #444444; /* Lighter border for visibility */
  --color-text: #ffffff; /* Pure white for primary */
  --color-text-muted: #b0b0b0; /* Much brighter muted text */
  --color-accent: #e5c15d; /* Brighter gold */
  --color-accent-glow: rgba(229, 193, 93, 0.2);

  /* Spacing & Radius */
  --radius: 2px; /* Sharp, modern */
  --container-width: 1400px;
  --transition: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
.brand {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.02em;
}

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

/* ---- Component: Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.6rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition);
}
.btn:hover {
  border-color: var(--color-text);
  background: var(--color-text);
  color: var(--color-bg);
}
.btn-primary {
  background: var(--color-text);
  color: var(--color-bg);
  border-color: var(--color-text);
}
.btn-primary:hover {
  background: transparent;
  color: var(--color-text);
}
.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
}
.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.75rem;
}

/* ---- Navbar ---- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 2rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}
.brand {
  font-size: 1.5rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-links {
  display: flex;
  gap: 2.5rem;
}
.nav-links a {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.7;
}
.nav-links a:hover {
  opacity: 1;
}

/* ---- Hero Section ---- */
.hero {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 2rem;
  position: relative;
  overflow: hidden;
}
/* removed .hero::before to rule out obstruction */

.hero h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: var(--color-text);
  position: relative;
  z-index: 2;
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.5); /* contrast against image */
}

.hero p {
  font-size: 1.2rem;
  color: var(--color-text); /* Brighter for legibility over image */
  max-width: 600px;
  margin-bottom: 3rem;
  font-weight: 300;
  position: relative;
  z-index: 2;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.8);
}

.hero-bg {
  position: absolute;
  inset: 0;
  opacity: 1; /* Full opacity to verify it works */
  z-index: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero .btn {
  position: relative;
  z-index: 2;
}

/* ---- Gallery Section ---- */
.gallery-section {
  padding: 8rem 2rem;
  max-width: var(--container-width);
  margin: 0 auto;
}
.section-header {
  margin-bottom: 4rem;
  text-align: center;
}
.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}
.section-header p {
  color: var(--color-text-muted);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.gallery-slot {
  aspect-ratio: 1/1;
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.gallery-slot:hover {
  border-color: var(--color-text-muted);
  background: var(--color-surface-hover);
}
.gallery-slot .icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  opacity: 0.3;
  transition: opacity var(--transition);
}
.gallery-slot:hover .icon {
  opacity: 0.8;
}
.gallery-slot span {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ---- Tool / App Interface ---- */
.app {
  display: flex;
  height: 100vh;
  overflow: hidden;
  opacity: 0; /* JS Fade in */
  transition: opacity 1s ease;
}

.sidebar {
  width: 420px;
  background: var(--color-bg);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  z-index: 10;
  box-shadow: 4px 0 20px rgba(0, 0, 0, 0.2);
  transition: width 0.3s ease;
}

@media (max-width: 1400px) {
  .sidebar {
    width: 320px;
  }
}
.sidebar-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.scroll-area {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
}
.sidebar-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: center;
  display: flex;
  justify-content: space-between;
}

.control-group {
  margin-bottom: 2rem;
}
details {
  border-bottom: 1px solid var(--color-border);
}
details:last-child {
  border-bottom: none;
}
details summary {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  outline: none;
  background: var(--color-bg);
  transition:
    color var(--transition),
    background var(--transition);
}
details summary:hover {
  color: var(--color-text);
  background: var(--color-surface);
}
details[open] summary {
  color: var(--color-accent);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 0;
}
details summary::after {
  content: "+";
  font-size: 1rem;
  font-weight: 300;
}
details[open] summary::after {
  content: "-";
}
/* Content container for details */
details > div,
details > .field,
details > .slider-field,
details > .actions-row,
details > button {
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}
/* Add padding to the first element in details */
details > *:nth-child(2) {
  margin-top: 1.5rem;
}

/* Fields */
.field {
  margin-bottom: 1rem;
}
.field label {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.select {
  width: 100%;
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  padding: 0.5rem;
  outline: none;
  font-family: var(--font-body);
}

/* Sliders */
.slider-field {
  margin-bottom: 1.5rem;
}
.label-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}
.label-row .val {
  color: var(--color-accent);
  font-family: monospace;
}

/* Toolbar */
.toolbar {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  padding: 0 1.5rem; /* Match sidebar padding */
}
.btn-tool {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  height: 40px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all var(--transition);
}
.btn-tool:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-text);
  color: var(--color-text);
}
.tool-icon {
  font-size: 1.1rem;
  line-height: 1;
}

/* Range Sliders */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  outline: none;
  margin-top: 0.5rem;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  height: 18px;
  width: 18px;
  border-radius: 50%;
  background: var(--color-text);
  border: 2px solid var(--color-surface);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  margin-top: -7px; /* center on track */
  cursor: pointer;
  transition:
    transform var(--transition),
    background var(--transition);
}
input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.1);
  background: var(--color-accent);
}
input[type="range"]:active::-webkit-slider-thumb {
  transform: scale(0.95);
  background: var(--color-accent);
}

/* Gradient Editor */
.gradient-editor {
  display: flex;
  gap: 2px;
  height: 20px;
  border: 1px solid var(--color-border);
}
.gradient-editor input[type="color"] {
  flex: 1;
  height: 100%;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
}

/* Inputs */
.row-inputs {
  display: flex;
  gap: 10px;
}
.row-inputs input {
  width: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 0.5rem;
}

/* Action Row */
.actions-row {
  display: flex;
  gap: 10px;
  margin-bottom: 1rem;
}

/* Main Canvas */
.viewport {
  flex: 1;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  /* Minimal texture */
  background-image: radial-gradient(
    var(--color-surface-hover) 1px,
    transparent 1px
  );
  background-size: 40px 40px;
}
.canvas-container {
  box-shadow: 0 0 0 1px var(--color-border);
  /* No heavy shadows, purely flat */
  background: var(--color-surface);
  width: 100%;
  height: 100%;
  max-width: 98%;
  max-height: 98%;
  display: flex;
  align-items: center;
  justify-content: center;
}
canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
}

/* Loader */
.loader-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-bg);
  z-index: 200;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: opacity 0.5s ease;
}
.spinner-ring {
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 1s infinite linear;
  margin-bottom: 1rem;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Utilities */
.hidden {
  opacity: 0;
  pointer-events: none;
}
.status-msg {
  font-size: 0.75rem;
  color: var(--color-accent);
  margin-left: 10px;
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 3rem;
  }
  .app {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
    height: 40%;
    order: 2;
    border-right: none;
    border-top: 1px solid var(--color-border);
  }
  .viewport {
    height: 60%;
    order: 1;
  }
  .nav-links {
    display: none;
  }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg);
  border-left: 1px solid var(--color-border);
}
::-webkit-scrollbar-thumb {
  background: #333;
  border-radius: 4px;
  border: 1px solid var(--color-bg);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent);
}
::-webkit-scrollbar-corner {
  background: var(--color-bg);
}

/* Custom Scrollbar for Webkit (Chrome, Safari, Edge) */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

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

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) var(--color-bg);
}

/* Light Theme Override */
[data-theme="light"] {
  --color-bg: #ffffff;
  --color-surface: #f3f3f3;
  --color-surface-hover: #e5e5e5;
  --color-border: #e0e0e0;
  --color-text: #111111;
  --color-text-muted: #666666;
  --color-accent: #d4af37;
  --color-accent-glow: rgba(212, 175, 55, 0.1);
}

[data-theme="light"] input,
[data-theme="light"] select,
[data-theme="light"] button {
  border-color: #ccc;
}