@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Cairo:wght@400;600;700&display=swap');

:root {
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-pill: 999px;
  --space-sm: 10px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 34px;
  --font-main: 'Manrope', 'Segoe UI', sans-serif;
  --font-ar: 'Cairo', 'Tahoma', sans-serif;

  --bg-page: #f6f8fc;
  --bg-card: #ffffff;
  --bg-soft: #f1f5fb;
  --bg-accent-soft: #eef4ff;
  --text-main: #182235;
  --text-muted: #4e607d;
  --text-subtle: #6f7f98;
  --border-strong: #cfdae9;
  --border-soft: #dce5f2;
  --primary: #2b5dbd;
  --primary-hover: #234ea1;
  --secondary: #ea7c48;
  --success: #2a9f6a;
  --code-bg: #f3f7ff;
  --shadow: 0 10px 24px rgba(18, 43, 82, 0.08);
  --surface-shadow: 0 2px 0 rgba(28, 54, 90, 0.05);
}

[data-theme='dark'] {
  --bg-page: #101722;
  --bg-card: #182131;
  --bg-soft: #1f2b3f;
  --bg-accent-soft: #213451;
  --text-main: #ecf3ff;
  --text-muted: #b4c5df;
  --text-subtle: #8ea2c1;
  --border-strong: #314867;
  --border-soft: #2a3f5c;
  --primary: #7db0ff;
  --primary-hover: #9ac1ff;
  --secondary: #ffb078;
  --success: #6fd8a7;
  --code-bg: #1e2a3d;
  --shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
  --surface-shadow: 0 2px 0 rgba(0, 0, 0, 0.22);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-main);
  color: var(--text-main);
  background:
    radial-gradient(circle at 12% 0%, color-mix(in srgb, var(--primary), transparent 85%), transparent 32%),
    radial-gradient(circle at 88% 8%, color-mix(in srgb, var(--secondary), transparent 86%), transparent 28%),
    linear-gradient(var(--bg-page), var(--bg-page));
  transition: background-color 0.25s ease, color 0.25s ease;
}

[dir='rtl'] body {
  font-family: var(--font-ar);
}

.app-shell {
  width: min(1160px, 92vw);
  margin: 26px auto 44px;
  display: grid;
  gap: var(--space-lg);
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow), var(--surface-shadow);
}

.hero {
  padding: clamp(22px, 4vw, 36px);
  display: flex;
  gap: 18px;
  justify-content: space-between;
  align-items: flex-start;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  width: 160px;
  height: 160px;
  right: -44px;
  top: -56px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--primary), transparent 82%);
  pointer-events: none;
}

.hero::after {
  content: 'EDU MODE';
  position: absolute;
  bottom: 16px;
  right: 18px;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  color: var(--success);
  border: 1px dashed color-mix(in srgb, var(--success), transparent 30%);
  border-radius: var(--radius-pill);
  padding: 4px 9px;
}

.brand-row {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  box-shadow: 0 6px 14px rgba(23, 50, 93, 0.24);
}

.brand-name {
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.eyebrow {
  margin: 0;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary);
  font-weight: 800;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.3;
}

h1 {
  margin-top: 6px;
  font-size: clamp(1.5rem, 3.2vw, 2.3rem);
}

h2 {
  font-size: 1.18rem;
}

h3 {
  font-size: 1rem;
}

.subtitle {
  margin: 12px 0 0;
  max-width: 800px;
  color: var(--text-muted);
  font-size: 0.98rem;
}

.subtitle::before {
  content: '•';
  color: var(--secondary);
  margin-inline-end: 8px;
}

.hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.theme-toggle {
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-pill);
  background: var(--bg-soft);
  color: var(--text-main);
  font-size: 0.86rem;
  font-weight: 700;
  padding: 10px 16px;
  cursor: pointer;
}

.theme-toggle:hover {
  border-color: var(--primary);
  transform: translateY(-1px);
}

.guide {
  padding: 18px 24px 22px;
  background: linear-gradient(to right, var(--bg-accent-soft), var(--bg-card));
  border-left: 6px solid var(--secondary);
}

.guide ol {
  margin: 12px 0 0 20px;
  color: var(--text-muted);
  display: grid;
  gap: 8px;
}

.guide-note {
  margin: 12px 0 0;
  font-size: 0.92rem;
  color: var(--text-subtle);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-lg);
}

.form-card {
  padding: 18px;
  border-style: solid;
  position: relative;
}

.form-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  border-radius: 22px 22px 0 0;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.form-card p {
  margin: 9px 0 13px;
  color: var(--text-muted);
}

.form-hint {
  margin: 10px 0 0;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border-strong);
  background: var(--bg-soft);
  color: var(--text-muted);
  font-size: 0.86rem;
  line-height: 1.45;
}

.form-hint strong {
  color: var(--primary);
}

input {
  width: 100%;
  margin-bottom: 10px;
  padding: 11px 12px;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  font-size: 0.94rem;
  color: var(--text-main);
  background: var(--bg-soft);
}

input::placeholder {
  color: var(--text-subtle);
}

input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary), transparent 76%);
}

input[type='submit'] {
  margin-top: 3px;
  border: 0;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--primary), color-mix(in srgb, var(--primary), #ffffff 14%));
  color: #ffffff;
  font-weight: 700;
  cursor: pointer;
}

input[type='submit']:hover {
  background: linear-gradient(135deg, var(--primary-hover), color-mix(in srgb, var(--primary-hover), #ffffff 10%));
}

.output-wrap {
  padding: 18px;
}

.flow-panel {
  padding: 18px;
  background: linear-gradient(to bottom, var(--bg-accent-soft), var(--bg-card));
}

.flow-panel h2 {
  margin-bottom: 6px;
}

.flow-panel > p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.93rem;
}

.reset-btn {
  margin-top: 12px;
  border: 1px solid color-mix(in srgb, var(--secondary), transparent 35%);
  background: color-mix(in srgb, var(--secondary), transparent 88%);
  color: var(--secondary);
  border-radius: var(--radius-pill);
  padding: 8px 14px;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
}

.reset-btn:hover {
  border-color: var(--secondary);
  background: color-mix(in srgb, var(--secondary), transparent 80%);
}

.flow-steps {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.flow-step {
  border: 1px solid var(--border-soft);
  background: var(--bg-soft);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  display: grid;
  gap: 5px;
}

.flow-step strong {
  color: var(--secondary);
  font-size: 0.86rem;
}

.flow-step.is-done {
  border-color: color-mix(in srgb, var(--success), transparent 35%);
  background: color-mix(in srgb, var(--success), transparent 90%);
}

.flow-step.is-done strong {
  color: var(--success);
}

.flow-tip {
  margin-top: 10px !important;
  padding: 10px 12px;
  border-left: 3px solid var(--primary);
  background: var(--bg-soft);
  border-radius: 8px;
}

#response-title::after,
#sim-title::after {
  content: '';
  display: block;
  width: 56px;
  height: 3px;
  margin-top: 8px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--primary), transparent);
}

code {
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 0.88rem;
  background: var(--code-bg);
  color: var(--text-main);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 4px 7px;
}

.sim-list {
  display: grid;
  gap: 10px;
  margin: 14px 0;
}

.sim-item {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 8px;
}

.sim-item code {
  white-space: nowrap;
  overflow-x: auto;
}

.copy-btn {
  border: 1px solid var(--border-strong);
  background: var(--bg-soft);
  color: var(--text-main);
  font-size: 0.78rem;
  font-weight: 700;
  border-radius: 9px;
  padding: 7px 10px;
  cursor: pointer;
}

.copy-btn:hover {
  border-color: var(--secondary);
}

.endpoint-breakdown {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border-soft);
}

.sim-help {
  margin-top: 12px;
  padding: 12px;
  border: 1px dashed var(--border-strong);
  border-radius: 10px;
  background: var(--bg-soft);
}

.sim-help p {
  margin: 0;
  color: var(--text-main);
}

.sim-help ul {
  margin: 8px 0 0 18px;
  padding: 0;
  color: var(--text-muted);
  display: grid;
  gap: 6px;
}

.endpoint-breakdown h3 {
  margin-bottom: 10px;
}

.breakdown-grid {
  display: grid;
  grid-template-columns: minmax(220px, 1.35fr) minmax(180px, 1fr) minmax(180px, 1fr);
  gap: 8px;
}

.breakdown-head,
.breakdown-cell,
.breakdown-grid code {
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  background: var(--bg-soft);
  padding: 9px 10px;
}

.breakdown-head {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary);
  font-weight: 800;
}

.breakdown-cell {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.chip {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-pill);
  border: 1px solid color-mix(in srgb, var(--primary), transparent 65%);
  background: var(--bg-card);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 10px;
}

.chip-muted {
  color: var(--text-subtle);
  border-color: var(--border-strong);
}

pre {
  margin: 0;
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  background: var(--bg-soft);
  color: var(--text-main);
  padding: 14px;
  overflow-x: auto;
  white-space: pre-wrap;
  line-height: 1.45;
}

#api-simulator-output {
  border-left: 4px solid var(--primary);
}

[data-theme='dark'] #api-simulator-output {
  border-left-color: var(--secondary);
}

[dir='rtl'] {
  text-align: right;
}

[dir='rtl'] .hero::before {
  left: -44px;
  right: auto;
}

[dir='rtl'] .hero::after {
  left: 18px;
  right: auto;
}

[dir='rtl'] .guide ol {
  margin: 12px 20px 0 0;
}

[dir='rtl'] .hero-actions {
  justify-content: flex-start;
}

[dir='rtl'] code,
[dir='rtl'] pre,
[dir='rtl'] #api-simulator-output,
[dir='rtl'] .sim-item code {
  direction: ltr;
  text-align: left;
}

@media (max-width: 980px) {
  .hero {
    flex-direction: column;
  }

  .hero::after {
    position: static;
    margin-top: 10px;
    display: inline-flex;
  }

  .form-grid,
  .breakdown-grid {
    grid-template-columns: 1fr;
  }

  .flow-steps {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .sim-item {
    grid-template-columns: 1fr;
  }

  .copy-btn {
    width: 100%;
  }
}