/* ===================================================
   waai style.css - Reset & Utility Classes (Responsive)
   =================================================== */

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
  color: #111827;
  background-color: #f9fafb;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: none;
}

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

input,
select,
textarea {
  font-family: inherit;
  font-size: 100%;
}

/* Container */
.container {
  width: 100%;
  max-width: 1024px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

/* Layout & Flexbox */
.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

.flex-col {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.items-center {
  align-items: center;
}

.items-start {
  align-items: flex-start;
}

.justify-between {
  justify-content: space-between;
}

.justify-center {
  justify-content: center;
}

.justify-end {
  justify-content: flex-end;
}

.gap-1 {
  gap: 0.25rem;
}

.gap-2 {
  gap: 0.5rem;
}

.gap-3 {
  gap: 0.75rem;
}

.gap-4 {
  gap: 1rem;
}

.gap-6 {
  gap: 1.5rem;
}

.gap-8 {
  gap: 2rem;
}

/* Grid */
.grid {
  display: grid;
}

.grid-cols-1 {
  grid-template-columns: repeat(1, minmax(0, 1fr));
}

.grid-cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-cols-7 {
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

@media (min-width: 640px) {
  .sm\:grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sm\:inline {
    display: inline;
  }

  .sm\:mr-3 {
    margin-right: 0.75rem;
  }
}

@media (min-width: 768px) {
  .md\:flex-row {
    flex-direction: row;
  }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .lg\:col-span-2 {
    grid-column: span 2 / span 2;
  }
}

/* Spacing */
.space-y-2>*+* {
  margin-top: 0.5rem;
}

.space-y-4>*+* {
  margin-top: 1rem;
}

.space-y-6>*+* {
  margin-top: 1.5rem;
}

.space-y-8>*+* {
  margin-top: 2rem;
}

.space-y-12>*+* {
  margin-top: 3rem;
}

.p-2 {
  padding: 0.5rem;
}

.p-3 {
  padding: 0.75rem;
}

.p-4 {
  padding: 1rem;
}

.p-6 {
  padding: 1.5rem;
}

.p-8 {
  padding: 2rem;
}

.px-2 {
  padding-left: 0.5rem;
  padding-right: 0.5rem;
}

.px-3 {
  padding-left: 0.75rem;
  padding-right: 0.75rem;
}

.px-4 {
  padding-left: 1rem;
  padding-right: 1rem;
}

.px-6 {
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.py-1 {
  padding-top: 0.25rem;
  padding-bottom: 0.25rem;
}

.py-2 {
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.py-3 {
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.py-4 {
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.py-6 {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
}

.py-8 {
  padding-top: 2rem;
  padding-bottom: 2rem;
}

.m-0 {
  margin: 0;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.my-12 {
  margin-top: 3rem;
  margin-bottom: 3rem;
}

.mt-1 {
  margin-top: 0.25rem;
}

.mt-2 {
  margin-top: 0.5rem;
}

.mt-4 {
  margin-top: 1rem;
}

.mt-6 {
  margin-top: 1.5rem;
}

.mt-8 {
  margin-top: 2rem;
}

.mt-12 {
  margin-top: 3rem;
}

.mt-16 {
  margin-top: 4rem;
}

.mb-1 {
  margin-bottom: 0.25rem;
}

.mb-2 {
  margin-bottom: 0.5rem;
}

.mb-3 {
  margin-bottom: 0.75rem;
}

.mb-4 {
  margin-bottom: 1rem;
}

.mb-6 {
  margin-bottom: 1.5rem;
}

.mr-2 {
  margin-right: 0.5rem;
}

.mr-4 {
  margin-right: 1rem;
}

.pt-2 {
  padding-top: 0.5rem;
}

.pt-4 {
  padding-top: 1rem;
}

.pt-6 {
  padding-top: 1.5rem;
}

.pb-2 {
  padding-bottom: 0.5rem;
}

.pb-3 {
  padding-bottom: 0.75rem;
}

/* Sizing */
.w-full {
  width: 100%;
}

.w-2 {
  width: 0.5rem;
}

.w-32 {
  width: 8rem;
}

.h-6 {
  height: 1.5rem;
}

.max-w-md {
  max-width: 28rem;
}

.max-w-3xl {
  max-width: 48rem;
}

/* Backgrounds */
.bg-white {
  background-color: #ffffff;
}

.bg-gray-50 {
  background-color: #f9fafb;
}

.bg-gray-100 {
  background-color: #f3f4f6;
}

.bg-gray-200 {
  background-color: #e5e7eb;
}

.bg-blue-50 {
  background-color: #eff6ff;
}

.bg-blue-100 {
  background-color: #dbeafe;
}

.bg-blue-600 {
  background-color: #2563eb;
}

.bg-blue-700 {
  background-color: #1d4ed8;
}

.bg-red-50 {
  background-color: #fef2f2;
}

.bg-green-50 {
  background-color: #f0fdf4;
}

.bg-gradient-to-r {
  background: linear-gradient(135deg, #eff6ff 0%, #eef2ff 100%);
}

.hover\:bg-blue-700:hover {
  background-color: #1d4ed8;
}

.hover\:bg-gray-300:hover {
  background-color: #d1d5db;
}

.hover\:underline:hover {
  text-decoration: underline;
}

/* Borders */
.border {
  border: 1px solid #e5e7eb;
}

.border-t {
  border-top: 1px solid #e5e7eb;
}

.border-b {
  border-bottom: 1px solid #e5e7eb;
}

.border-2 {
  border-width: 2px;
  border-style: solid;
}

.border-l-4 {
  border-left-width: 4px;
  border-left-style: solid;
}

.border-gray-100 {
  border-color: #f3f4f6;
}

.border-gray-200 {
  border-color: #e5e7eb;
}

.border-blue-100 {
  border-color: #dbeafe;
}

.border-blue-200 {
  border-color: #bfdbfe;
}

.border-blue-500 {
  border-color: #3b82f6;
}

.border-red-200 {
  border-color: #fecaca;
}

.rounded {
  border-radius: 0.25rem;
}

.rounded-md {
  border-radius: 0.375rem;
}

.rounded-lg {
  border-radius: 0.5rem;
}

.rounded-r-lg {
  border-top-right-radius: 0.5rem;
  border-bottom-right-radius: 0.5rem;
}

.rounded-xl {
  border-radius: 0.75rem;
}

.rounded-full {
  border-radius: 9999px;
}

.shadow-sm {
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.shadow {
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
}

/* Typography */
.text-xs {
  font-size: 0.75rem;
  line-height: 1rem;
}

.text-sm {
  font-size: 0.875rem;
  line-height: 1.25rem;
}

.text-base {
  font-size: 1rem;
  line-height: 1.5rem;
}

.text-lg {
  font-size: 1.125rem;
  line-height: 1.75rem;
}

.text-xl {
  font-size: 1.25rem;
  line-height: 1.75rem;
}

.text-2xl {
  font-size: 1.5rem;
  line-height: 2rem;
}

.text-3xl {
  font-size: 1.875rem;
  line-height: 2.25rem;
}

.text-4xl {
  font-size: 2.25rem;
  line-height: 2.5rem;
}

.font-medium {
  font-weight: 500;
}

.font-semibold {
  font-weight: 600;
}

.font-bold {
  font-weight: 700;
}

.font-extrabold {
  font-weight: 800;
}

.tracking-tight {
  letter-spacing: -0.025em;
}

.leading-relaxed {
  line-height: 1.625;
}

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

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

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

.text-white {
  color: #ffffff;
}

.text-gray-400 {
  color: #9ca3af;
}

.text-gray-500 {
  color: #6b7280;
}

.text-gray-600 {
  color: #4b5563;
}

.text-gray-700 {
  color: #374151;
}

.text-gray-800 {
  color: #1f2937;
}

.text-gray-900 {
  color: #111827;
}

.text-blue-500 {
  color: #3b82f6;
}

.text-blue-600 {
  color: #2563eb;
}

.text-blue-700 {
  color: #1d4ed8;
}

.text-red-500 {
  color: #ef4444;
}

.text-red-600 {
  color: #dc2626;
}

.italic {
  font-style: italic;
}

.block {
  display: block;
}

.inline-block {
  display: inline-block;
}

.hidden {
  display: none;
}

/* Form inputs & buttons */
input[type="text"],
input[type="password"],
input[type="email"],
select,
textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid #d1d5db;
  border-radius: 0.375rem;
  background-color: #ffffff;
  color: #111827;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

button[type="submit"] {
  cursor: pointer;
  transition: background-color 0.15s ease-in-out, transform 0.1s ease-in-out;
}

button[type="submit"]:active {
  transform: scale(0.99);
}

/* Tables & Lists */
.divide-y>*+* {
  border-top: 1px solid #f3f4f6;
}

.overflow-x-auto {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

/* Transitions */
.transition {
  transition-property: background-color, border-color, color, fill, stroke, opacity, box-shadow, transform;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

.duration-200 {
  transition-duration: 200ms;
}