@import url(../../fonts/stylesheet.css);

/* =========
 Root Variables
========== */
:root {
  --primary-color: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #eef2ff;
  --background: #f0f4ff;
  --surface: rgba(255, 255, 255, 0.5);
  --surface-hover: rgba(255, 255, 255, 0.95);
  --text-primary: #2c3e50;
  --text-secondary: #4b5563;
  --text-muted: #6b7280;
  --border: rgba(220, 225, 230, 0.8);
  --border-focus: var(--primary-color);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.1);
  --gradient-bg: linear-gradient(135deg, rgb(220, 225, 245), rgb(205, 215, 240), rgb(225, 215, 245));
  --glass-bg: rgba(255, 255, 255, 0.35);
  --glass-border: rgba(255, 255, 255, 0.5);
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  :root {
    --primary-color: #818cf8;
    --primary-hover: #6366f1;
    --primary-light: #312e81;
    --background: #0f172a;
    --surface: rgba(30, 41, 59, 0.9);
    --surface-hover: rgba(30, 41, 59, 0.95);
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border: rgba(51, 65, 85, 0.8);
    --border-focus: var(--primary-color);
    --gradient-bg: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    --glass-bg: rgba(30, 41, 59, 0.25);
    --glass-border: rgba(148, 163, 184, 0.18);
  }
}

/* =========
 Theme Classes for Individual Pages
========== */
body.theme-1 { --primary-color: #4f46e5; --primary-hover: #4338ca; --primary-light: #eef2ff; }
body.theme-2 { --primary-color: #06b6d4; --primary-hover: #0891b2; --primary-light: #d0f5fd; }
body.theme-3 { --primary-color: #10b981; --primary-hover: #059669; --primary-light: #d1fae5; }
body.theme-4 { --primary-color: #f59e0b; --primary-hover: #d97706; --primary-light: #fef3c7; }
body.theme-5 { --primary-color: #ef4444; --primary-hover: #b91c1c; --primary-light: #fee2e2; }
body.theme-6 { --primary-color: #ec4899; --primary-hover: #db2777; --primary-light: #fce7f3; }
body.theme-7 { --primary-color: #8b5cf6; --primary-hover: #7c3aed; --primary-light: #ede9fe; }
body.theme-8 { --primary-color: #0ea5e9; --primary-hover: #0284c7; --primary-light: #dbeafe; }
body.theme-9 { --primary-color: #22c55e; --primary-hover: #16a34a; --primary-light: #dcfce7; }
body.theme-10 { --primary-color: #a855f7; --primary-hover: #9333ea; --primary-light: #f3e8ff; }

/* =========
 Main Grid Accent Colors (nth-child)
========== */
.tools-grid .tool-card:nth-child(10n+1) { --primary-color: #4f46e5; --primary-hover: #4338ca; --primary-light: #eef2ff; }
.tools-grid .tool-card:nth-child(10n+2) { --primary-color: #06b6d4; --primary-hover: #0891b2; --primary-light: #d0f5fd; }
.tools-grid .tool-card:nth-child(10n+3) { --primary-color: #10b981; --primary-hover: #059669; --primary-light: #d1fae5; }
.tools-grid .tool-card:nth-child(10n+4) { --primary-color: #f59e0b; --primary-hover: #d97706; --primary-light: #fef3c7; }
.tools-grid .tool-card:nth-child(10n+5) { --primary-color: #ef4444; --primary-hover: #b91c1c; --primary-light: #fee2e2; }
.tools-grid .tool-card:nth-child(10n+6) { --primary-color: #ec4899; --primary-hover: #db2777; --primary-light: #fce7f3; }
.tools-grid .tool-card:nth-child(10n+7) { --primary-color: #8b5cf6; --primary-hover: #7c3aed; --primary-light: #ede9fe; }
.tools-grid .tool-card:nth-child(10n+8) { --primary-color: #0ea5e9; --primary-hover: #0284c7; --primary-light: #dbeafe; }
.tools-grid .tool-card:nth-child(10n+9) { --primary-color: #22c55e; --primary-hover: #16a34a; --primary-light: #dcfce7; }
.tools-grid .tool-card:nth-child(10n+10) { --primary-color: #a855f7; --primary-hover: #9333ea; --primary-light: #f3e8ff; }

/* =========
 Base & Reset
========== */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: "Inter 18pt", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue",
    sans-serif;
  background: var(--gradient-bg);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  font-size: clamp(14px, 1.5vw, 16px);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 3rem) clamp(1rem, 4vw, 2rem);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* =========
 Shared Card Styles
========== */
.app-card, .tool-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: clamp(16px, 2vw, 20px);
  padding: clamp(1.5rem, 3vw, 2rem);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  animation: slideIn 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.app-card:hover, .tool-card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-lg);
}

/* Tool grid layout */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(1rem, 2vw, 1.5rem);
}

.tool-card {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  min-height: 240px;
  overflow: hidden;
}

/* Tool card accent usage */
.tool-card .tool-icon,
.tool-card .feature-tag,
.tool-card .tool-link {
  color: var(--primary-color);
}

.feature-tag {
  display: inline-block;
  background: color-mix(in srgb, var(--primary-color) 20%, transparent);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  margin: 0.25rem 0.25rem 0 0;
}

.tool-title {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
}

.tool-description {
  font-size: clamp(0.9rem, 1.5vw, 1rem);
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0.5rem 0 1rem;
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: opacity 0.4s ease, max-height 0.4s ease;
}

.tool-card:hover .tool-description {
  opacity: 1;
  max-height: 150px;
}

.tool-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--primary-color);
  font-weight: 600;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.25s ease, transform 0.25s ease;
}

.tool-link:hover {
  color: var(--primary-hover);
  transform: translateX(2px);
}

.tool-link:hover i {
  transform: translateX(4px);
}

/* =========
 Forms, Buttons & Results (Tool Pages)
========== */
.app-header { text-align: center; margin-bottom: clamp(2rem, 4vw, 2.5rem); }

.app-title {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  letter-spacing: -0.025em;
}

.app-subtitle {
  color: var(--text-secondary);
  font-size: clamp(0.875rem, 2vw, 1rem);
  font-weight: 500;
}

.form-group { margin-bottom: clamp(1.25rem, 3vw, 1.5rem); }

.form-label {
  display: block;
  font-size: clamp(0.875rem, 2vw, 0.9375rem);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.form-input {
  width: 100%;
  padding: clamp(0.875rem, 2.5vw, 1rem) clamp(1rem, 3vw, 1.25rem);
  border: 2px solid var(--border);
  border-radius: clamp(8px, 1.5vw, 12px);
  background: var(--surface);
  color: var(--text-primary);
  font-size: clamp(0.9375rem, 2vw, 1rem);
  font-weight: 500;
  transition: all 0.2s ease;
  outline: none;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.form-input::placeholder { color: var(--text-muted); font-weight: 400; }

.form-input:focus {
  border-color: var(--border-focus);
  background: var(--surface-hover);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
  transform: translateY(-1px);
}

.btn-primary {
  width: 100%;
  padding: clamp(0.875rem, 2.5vw, 1rem);
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: clamp(8px, 1.5vw, 12px);
  font-size: clamp(0.9375rem, 2vw, 1rem);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

.reset-btn {
  margin-top: 20px;
  width: 100%;
  padding: clamp(0.875rem, 2.5vw, 1rem);
  background: white;
  color: var(--primary-color);
  border: none;
  border-radius: clamp(8px, 1.5vw, 12px);
  font-size: clamp(0.9375rem, 2vw, 1rem);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.reset-btn:hover {
  background: white;
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}


.result-section {
  margin-top: clamp(1rem, 4vw, 1.25rem);
  padding-top: clamp(1.5rem, 4vw, 2rem);
  border-top: 1px solid var(--border);
}

.result-label {
  font-size: clamp(0.875rem, 2vw, 0.9375rem);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.result-display {
  padding: clamp(1rem, 3vw, 1.25rem);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: clamp(8px, 1.5vw, 12px);
  font-size: clamp(0.9375rem, 2vw, 1rem);
  font-weight: 500;
  min-height: 3rem;
  text-align: center;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.result-display.success {
  color: #10b981;
  border-color: #10b981;
  background: rgba(16, 185, 129, 0.1);
}

.result-display.error {
  color: #ef4444;
  border-color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
}

/* =========
 Animations
========== */
@keyframes slideIn {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* =========
 Responsive tweaks
========== */
@media (max-width: 480px) {
  .container { padding: 1rem; }
  .result-display { font-size: 0.85rem; }
}