/* tokens.css — Stone Sharp Academy
 * v0.2.0 — mirrors the live site at stonesharpacademy.com
 * Generated from DESIGN.md. Do not edit by hand —
 * update DESIGN.md first, then mirror values here.
 */

:root {
  /* ---------- Color: primary (navy) ---------- */
  --color-primary:        #1a365d;
  --color-primary-dark:   #12263f;
  --color-primary-light:  #2c5282;

  /* ---------- Color: secondary (gold — CTAs and accents) ---------- */
  --color-secondary:       #d69e2e;
  --color-secondary-dark:  #b7791f;
  --color-secondary-light: #ecc94b;

  /* ---------- Color: surfaces ---------- */
  --color-white:           #ffffff;
  --color-background:      #f7fafc;     /* alternate section bg */
  --color-background-alt:  #edf2f7;     /* deeper alt / placeholder gradients */

  /* ---------- Color: text ---------- */
  --color-text:            #2d3748;     /* body */
  --color-text-light:      #718096;     /* secondary copy */
  --color-text-lighter:    #a0aec0;     /* placeholders, micro labels */

  /* ---------- Color: utility ---------- */
  --color-border:          #e2e8f0;
  --color-success:         #48bb78;
  --color-error:           #f56565;

  /* ---------- Typography ---------- */
  --font-heading: 'Montserrat', sans-serif;
  --font-body:    'Open Sans', sans-serif;

  /* ---------- Spacing (matches live site exactly) ---------- */
  --spacing-xs:  0.25rem;   /* 4px  */
  --spacing-sm:  0.5rem;    /* 8px  */
  --spacing-md:  1rem;      /* 16px */
  --spacing-lg:  1.5rem;    /* 24px */
  --spacing-xl:  2rem;      /* 32px */
  --spacing-2xl: 3rem;      /* 48px */
  --spacing-3xl: 4rem;      /* 64px */
  --spacing-4xl: 6rem;      /* 96px */

  /* ---------- Radius ---------- */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   16px;
  --radius-full: 9999px;

  /* ---------- Shadows (5-step scale) ---------- */
  --shadow-sm:  0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md:  0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg:  0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl:  0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* ---------- Transitions ---------- */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;

  /* ---------- Layout ---------- */
  --container-max:     1200px;
  --container-padding: 1.5rem;
  --header-height:     80px;
}

@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

img { max-width: 100%; height: auto; display: block; }

ul { list-style: none; }

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

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

/* ---------- Container & section ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section { padding: var(--spacing-3xl) 0; }

/* Subtle math-grid texture — add class to a section */
.grid-bg { position: relative; }
.grid-bg::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(26, 54, 93, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 54, 93, 0.04) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
  z-index: 0;
}
.grid-bg > .container { position: relative; z-index: 1; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  white-space: nowrap;
}

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

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}
.btn-outline:hover {
  background: var(--color-white);
  color: var(--color-primary);
}

.btn-outline-dark {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-outline-dark:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-lg { padding: 1rem 2rem; font-size: 1.125rem; }
.btn-full { width: 100%; }