@import url('../components/header/header.css');
@import url('../components/footer/footer.css');
@import url('../pages/home/home.css');
@import url('./tool-base.css');

/* ===== Design Tokens ===== */
:root {
  /* Colors */
  --color-primary: #185fa5;
  --color-primary-dark: #0c447c;
  --color-primary-soft: rgba(24, 95, 165, 0.08);
  --color-primary-border: rgba(24, 95, 165, 0.2);
  --color-text: #1f1f1f;
  --color-text-2: #555;
  --color-text-3: #888;
  --color-border: #e8e8e8;
  --color-bg: #fff;
  --color-bg-soft: #f5f5f5;
  --color-success: #16a34a;
  --color-danger: #dc2626;

  /* Typography */
  --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --text-xs: 12px;
  --text-sm: 13px;
  --text-base: 14px;
  --text-md: 15px;
  --text-lg: 18px;
  --text-xl: 24px;
  --text-2xl: 32px;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 100px;

  /* Shadows */
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-primary: 0 4px 14px rgba(24, 95, 165, 0.3);

  /* Layout */
  --container: 1200px;

  /* Transitions */
  --t-fast: 0.18s ease;
  --t-base: 0.2s ease;
}

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

html, body {
  height: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg-soft);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-content {
  flex: 1;
}

.back-home {
  display: inline-block;
  margin: 20px;
  font-size: var(--text-sm);
  color: var(--color-primary);
  text-decoration: none;
}

.back-home:hover {
  text-decoration: underline;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: var(--text-md);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--t-base);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

.btn-outline {
  background: var(--color-bg);
  color: var(--color-text-2);
  border-color: var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}