/* ===================================================================
   FirstOfCAD Web — Theme (pixel-matched to iOS FirstOfCADTheme.swift)
   =================================================================== */

:root {
  /* Brand purple (identical to iOS) */
  --foc-primary-purple: rgb(74, 28, 150);    /* 0.29, 0.11, 0.59 */
  --foc-vibrant-purple: rgb(125, 59, 237);   /* 0.49, 0.23, 0.93 */
  --foc-light-purple:   rgb(166, 140, 250);  /* 0.65, 0.55, 0.98 */
  --foc-accent-purple:  rgb(148, 89, 255);   /* 0.58, 0.35, 1.0 */
  --foc-deep-purple:    rgb(56, 20, 122);    /* 0.22, 0.08, 0.48 */

  /* Status colors */
  --foc-status-ready:     rgb(128, 128, 153);
  --foc-status-drawing:   rgb(102, 230, 128);
  --foc-status-editing:   rgb(250, 178, 64);
  --foc-status-measuring: rgb(66, 204, 237);
  --foc-status-success:   rgb(87, 214, 138);
  --foc-status-warning:   rgb(250, 178, 64);
  --foc-status-error:     rgb(232, 92, 107);
  --foc-status-info:      rgb(66, 204, 237);

  /* Active selection */
  --foc-active-selection: var(--foc-vibrant-purple);
  --foc-active-selection-bg: rgba(125, 59, 237, 0.2);

  /* Dark theme (default) */
  --foc-bg-darkest: #07051A;
  --foc-bg-dark:    #0D0B22;
  --foc-bg-medium:  #14102A;
  --foc-bg-light:   #1B1638;
  --foc-bg-lighter: #251F4A;
  --foc-bg-card:    rgba(20, 16, 42, 0.85);
  --foc-canvas-bg:  #08061C;
  --foc-grid-minor: rgba(124, 58, 237, 0.07);
  --foc-grid-major: rgba(124, 58, 237, 0.18);
  --foc-text-primary:   #F4F2FF;
  --foc-text-secondary: #B8B2CC;
  --foc-text-muted:     #736B8A;
  --foc-hover-bg:       rgba(124, 58, 237, 0.12);
  --foc-border:         rgba(124, 58, 237, 0.18);
  --foc-border-strong:  rgba(124, 58, 237, 0.4);

  --foc-radius: 14px;
  --foc-radius-sm: 8px;
  --foc-radius-lg: 20px;
  --foc-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  --foc-shadow-glow: 0 0 40px rgba(124, 58, 237, 0.25);
  --foc-ease: cubic-bezier(0.4, 0, 0.2, 1);

  --foc-font: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', system-ui, sans-serif;
  --foc-font-mono: 'SF Mono', Menlo, Consolas, 'Roboto Mono', monospace;
}

/* Light theme removed — dark-only experience. */

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

html, body {
  height: 100%;
  background: var(--foc-bg-darkest);
  color: var(--foc-text-primary);
  font-family: var(--foc-font);
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
}

body {
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

button {
  font-family: inherit;
  border: none;
  background: transparent;
  color: inherit;
  cursor: pointer;
  user-select: none;
}

button:disabled { cursor: not-allowed; opacity: 0.5; }

input, select, textarea {
  font-family: inherit;
  color: inherit;
  background: var(--foc-bg-medium);
  border: 1px solid var(--foc-border);
  border-radius: var(--foc-radius-sm);
  padding: 0.65rem 0.9rem;
  font-size: 0.92rem;
  outline: none;
  transition: border-color 0.15s var(--foc-ease), box-shadow 0.15s var(--foc-ease);
}
input:focus, select:focus, textarea:focus {
  border-color: var(--foc-vibrant-purple);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.18);
}

a { color: var(--foc-light-purple); text-decoration: none; }
a:hover { color: var(--foc-vibrant-purple); }

/* ----- Buttons ----- */
.foc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.2rem;
  border-radius: var(--foc-radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.15s var(--foc-ease);
  white-space: nowrap;
}
.foc-btn-primary {
  background: linear-gradient(135deg, var(--foc-vibrant-purple), var(--foc-accent-purple));
  color: #fff;
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.35);
}
.foc-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(124, 58, 237, 0.5);
}
.foc-btn-secondary {
  background: var(--foc-bg-light);
  color: var(--foc-text-primary);
  border: 1px solid var(--foc-border);
}
.foc-btn-secondary:hover {
  background: var(--foc-bg-lighter);
  border-color: var(--foc-border-strong);
}
.foc-btn-ghost {
  background: transparent;
  color: var(--foc-text-secondary);
}
.foc-btn-ghost:hover {
  background: var(--foc-hover-bg);
  color: var(--foc-text-primary);
}
.foc-btn-danger {
  background: var(--foc-status-error);
  color: #fff;
}
.foc-btn-whatsapp {
  background: linear-gradient(135deg, #25D366, #128C7E);
  color: #fff;
}
.foc-btn-block { width: 100%; }

/* ----- Card ----- */
.foc-card {
  background: var(--foc-bg-card);
  border: 1px solid var(--foc-border);
  border-radius: var(--foc-radius);
  padding: 1.5rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* ----- Loading spinner ----- */
.foc-spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(124, 58, 237, 0.18);
  border-top-color: var(--foc-vibrant-purple);
  border-radius: 50%;
  animation: foc-spin 0.7s linear infinite;
}
@keyframes foc-spin { to { transform: rotate(360deg); } }

/* ----- Toast ----- */
.foc-toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  background: var(--foc-bg-light);
  border: 1px solid var(--foc-border-strong);
  border-radius: var(--foc-radius);
  padding: 0.9rem 1.4rem;
  color: var(--foc-text-primary);
  z-index: 10000;
  transition: transform 0.25s var(--foc-ease);
  box-shadow: var(--foc-shadow);
  font-size: 0.92rem;
  font-weight: 500;
  max-width: 420px;
}
.foc-toast.show { transform: translateX(-50%) translateY(0); }
.foc-toast.success { border-color: var(--foc-status-success); }
.foc-toast.error   { border-color: var(--foc-status-error); }
.foc-toast.info    { border-color: var(--foc-status-info); }

/* Ensure HTML hidden attribute always wins over display:flex/grid */
[hidden] { display: none !important; }

/* RTL */
[dir="rtl"] body { direction: rtl; }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--foc-bg-dark); }
::-webkit-scrollbar-thumb { background: var(--foc-border-strong); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--foc-vibrant-purple); }

/* Reveal animations */
.foc-fade-in { animation: foc-fade-in 0.35s var(--foc-ease) both; }
@keyframes foc-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: none; }
}