/* SOPHIA Portal — Base styles & design tokens
 *
 * Aesthetic direction: editorial / contemplative / warm-classical
 * Inspired by the etymology of "Sophia" (σοφία, wisdom) — Mediterranean,
 * scholarly, slightly literary. Cream paper background, deep walnut text,
 * terracotta accent. Fraunces (variable serif) for display + Source Sans 3
 * for body, matching SOPHIA's existing brand usage on Thinkific.
 */

@import url("https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght,SOFT,WONK@9..144,300..900,0..100,0..1&family=Source+Sans+3:ital,wght@0,200..900;1,200..900&display=swap");

:root {
  /* Color palette — warm classical */
  --color-bg: #faf6ee;
  --color-bg-elevated: #ffffff;
  --color-bg-subtle: #f3ede0;
  --color-text: #1f1a14;
  --color-text-muted: #6b5f50;
  --color-text-subtle: #9a8e7e;
  --color-accent: #c4763b;
  --color-accent-hover: #a8602a;
  --color-accent-soft: #edd9c0;
  --color-accent-faint: #f7ecdb;
  --color-border: #e8dfd0;
  --color-border-strong: #c9bea9;
  --color-success: #6f8e5e;
  --color-success-soft: #dde8d3;
  --color-danger: #b04a3e;
  --color-danger-soft: #f0d8d3;

  /* Typography */
  --font-display: "Fraunces", "Iowan Old Style", "Apple Garamond", Georgia, serif;
  --font-body: "Source Sans 3", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, monospace;

  /* Spacing scale (4px base) */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 20px;
  --s-6: 24px;
  --s-8: 32px;
  --s-10: 40px;
  --s-12: 48px;
  --s-16: 64px;
  --s-20: 80px;
  --s-24: 96px;

  /* Radius */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 14px;
  --r-xl: 20px;
  --r-full: 999px;

  /* Shadows — soft, paper-like */
  --shadow-sm: 0 1px 2px rgba(31, 26, 20, 0.04), 0 1px 3px rgba(31, 26, 20, 0.06);
  --shadow-md: 0 4px 6px rgba(31, 26, 20, 0.04), 0 10px 24px -6px rgba(31, 26, 20, 0.08);
  --shadow-lg: 0 12px 32px -8px rgba(31, 26, 20, 0.16);

  /* Layout */
  --sidebar-w: 264px;
  --header-h: 64px;
  --content-max: 1200px;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.55;
  color: var(--color-text);
  background: var(--color-bg);
  font-feature-settings: "kern", "liga", "ss01";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--color-text);
  font-variation-settings: "opsz" 144;
}

h1 { font-size: clamp(2.25rem, 4vw, 3.25rem); }
h2 { font-size: clamp(1.625rem, 3vw, 2.25rem); }
h3 { font-size: 1.375rem; }
h4 { font-size: 1.125rem; }

p {
  color: var(--color-text);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--color-accent-hover);
}

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

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

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

/* Utility — visually-hidden for a11y */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Buttons (shared) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  padding: var(--s-3) var(--s-5);
  border-radius: var(--r-md);
  font-weight: 500;
  font-size: 0.9375rem;
  letter-spacing: -0.005em;
  transition: all 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-text);
  color: var(--color-bg);
}
.btn-primary:hover {
  background: #2f2820;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background: var(--color-accent);
  color: white;
}
.btn-accent:hover {
  background: var(--color-accent-hover);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--color-bg-elevated);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover {
  background: var(--color-bg-subtle);
  border-color: var(--color-border-strong);
}

.btn-ghost {
  color: var(--color-text-muted);
  background: transparent;
  padding: var(--s-2) var(--s-3);
}
.btn-ghost:hover {
  color: var(--color-text);
  background: var(--color-bg-subtle);
}

/* Loader */
.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Scrollbars (webkit only) */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--r-full);
  border: 2px solid var(--color-bg);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-border-strong);
}