/* ==========================================================================
   Shines Portal — Shared Design System
   Based on DESIGN.md: Stripe structural patterns + Aveyo brand identity
   ========================================================================== */

/* --- Font Loading --- */

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

/* --- Design Tokens --- */

:root {
  /* Typography — Inter-only (weight 700 for display headings, 600 ceiling for UI) */
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Geist Mono', ui-monospace, monospace;

  /* Brand Primary */
  --color-black: #212220;
  --color-white: #ffffff;
  --color-light-blue: #EDF5FF;
  --color-sky: #9FCDEE;

  /* Neutral Scale */
  --color-heading: #212220;
  --color-label: #374151;
  --color-body: #6B7280;
  --color-muted: #9CA3AF;
  --color-border: #E5E7EB;
  --color-surface: #F9FAFB;

  /* Interactive */
  --color-primary: #212220;
  --color-primary-hover: #2D2E2C;
  --color-primary-active: #1A1B19;
  --color-secondary: #2563EB;
  --color-secondary-hover: #1D4ED8;
  --color-link: #2563EB;
  --color-focus: #3B82F6;
  --color-error: #DC2626;

  /* Shadows */
  --shadow-border: 0px 0px 0px 1px rgba(0, 0, 0, 0.08);
  --shadow-subtle: rgba(23, 23, 23, 0.06) 0px 3px 6px;
  --shadow-elevated: rgba(50, 50, 93, 0.25) 0px 30px 45px -30px, rgba(0, 0, 0, 0.1) 0px 18px 36px -18px;
  --shadow-focus: 0 0 0 2px #ffffff, 0 0 0 4px #3B82F6;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;

  /* Gradients */
  --gradient-sky: linear-gradient(135deg, #EDF5FF 0%, #9FCDEE 100%);
  --gradient-light: linear-gradient(180deg, #EDF5FF 0%, #ffffff 100%);
}

/* --- Reset --- */

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

/* --- Base Styles --- */

body {
  font-family: var(--font-body);
  background: var(--color-white);
  color: var(--color-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* --- Nav Bar --- */

.nav-bar {
  height: 56px;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 24px;
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-black);
  text-decoration: none;
  letter-spacing: -0.36px;
}

.nav-brand:hover {
  text-decoration: none;
}

.nav-context {
  font-size: 14px;
  font-weight: 400;
  color: var(--color-body);
  margin-left: auto;
}

/* --- Layout --- */

.container {
  max-width: 700px;
  margin: 0 auto;
  padding: 32px 24px;
}

.container--form {
  max-width: 600px;
}

/* --- Shared Card --- */

.card {
  background: var(--color-white);
  box-shadow: var(--shadow-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: box-shadow 0.15s ease;
}

.card:hover {
  box-shadow: var(--shadow-subtle);
}

/* --- Buttons --- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease;
}

.btn:hover {
  text-decoration: none;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
}

.btn--primary:active {
  background: var(--color-primary-active);
}

.btn--secondary {
  background: var(--color-secondary);
  color: var(--color-white);
}

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

.btn--outlined {
  background: var(--color-white);
  color: var(--color-heading);
  border: 1px solid var(--color-border);
}

.btn--outlined:hover {
  background: var(--color-surface);
}

/* --- Step Label (info cards) --- */

.step-label {
  display: block;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

/* --- Responsive --- */

@media (max-width: 639px) {
  .nav-bar {
    padding: 0 16px;
  }

  .container {
    padding: 24px 16px;
  }

  .card {
    padding: 16px;
  }

  .nav-context {
    font-size: 13px;
  }
}