/* ==========================================================================
   SmallPNGTool.com - Core Styling
   Premium Typography & Modern SaaS Design System
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400;1,600&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --success: #10b981;
  --success-light: #ecfdf5;
  --dark: #0f172a;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  letter-spacing: -0.011em;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  letter-spacing: -0.025em;
  font-weight: 700;
}

code, kbd, samp, pre {
  font-family: var(--font-mono);
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}
::-webkit-scrollbar-track {
  background: #f8fafc;
}
::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 9999px;
}
::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* Dropzone animations */
.dropzone-active {
  border-color: #2563eb !important;
  background-color: #eff6ff !important;
  transform: scale(1.008);
}

/* Animated gradient border on upload box */
.tool-dropzone {
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  background-image: repeating-linear-gradient(0deg, #cbd5e1, #cbd5e1 10px, transparent 10px, transparent 20px), 
                    repeating-linear-gradient(90deg, #cbd5e1, #cbd5e1 10px, transparent 10px, transparent 20px), 
                    repeating-linear-gradient(180deg, #cbd5e1, #cbd5e1 10px, transparent 10px, transparent 20px), 
                    repeating-linear-gradient(270deg, #cbd5e1, #cbd5e1 10px, transparent 10px, transparent 20px);
  background-size: 2px 100%, 100% 2px, 2px 100%, 100% 2px;
  background-position: 0 0, 0 0, 100% 0, 0 100%;
  background-repeat: no-repeat;
}

.tool-dropzone:hover {
  background-color: #f8fafc;
  border-color: #3b82f6;
}

/* Range slider custom styling */
input[type="range"] {
  accent-color: #2563eb;
}

/* FAQ Accordion Transitions */
details summary::-webkit-details-marker {
  display: none;
}
details[open] summary svg {
  transform: rotate(180deg);
}

/* Subtle transitions for cards & buttons */
.tool-card {
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.tool-card:hover {
  box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
}

/* Spinner */
@keyframes spin {
  to { transform: rotate(360deg); }
}
.animate-spin-custom {
  animation: spin 0.8s linear infinite;
}