/* css/main.css - Core styles and design tokens */

:root {
  color-scheme: light;
  --color-bg: #f7f1e8;
  --color-bg-alt: #efe6d8;
  --color-bg-strong: #1d2b36;
  --color-surface: rgba(255, 255, 255, 0.82);
  --color-surface-strong: #fffdf9;
  --color-card-border: rgba(29, 43, 54, 0.1);
  --color-text: #16222c;
  --color-text-muted: #5f6d78;
  --color-text-soft: #7c8a94;
  --color-heading: #0f1a22;
  --color-primary: #f97316;
  --color-primary-dark: #d85f0d;
  --color-primary-soft: rgba(249, 115, 22, 0.12);
  --color-accent: #0f766e;
  --color-accent-soft: rgba(15, 118, 110, 0.1);
  --color-success: #047857;
  --color-danger: #c2410c;
  --color-youtube: #ff2d20;
  --color-ai: #7c3aed;
  --color-maps: #059669;
  --color-seo: #2563eb;
  --color-ecommerce: #ca8a04;
  --color-crypto: #ea580c;
  --color-media: #db2777;
  --color-social: #0891b2;
  --color-dev: #4f46e5;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4rem;
  --space-8: 6rem;
  --radius-sm: 0.5rem;
  --radius-md: 0.9rem;
  --radius-lg: 1.4rem;
  --radius-xl: 2rem;
  --radius-full: 999px;
  --shadow-sm: 0 10px 30px rgba(19, 31, 42, 0.08);
  --shadow-md: 0 18px 50px rgba(19, 31, 42, 0.12);
  --shadow-lg: 0 24px 80px rgba(19, 31, 42, 0.16);
  --font-display: "Sora", "Trebuchet MS", sans-serif;
  --font-body: "Source Sans 3", "Segoe UI", sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.75rem;
  --font-size-5xl: 4.5rem;
  --transition-fast: 160ms ease;
  --transition-base: 280ms ease;
  --container-max: 1200px;
  --container-padding: clamp(1rem, 2vw, 1.5rem);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background:
    radial-gradient(circle at top left, rgba(249, 115, 22, 0.12), transparent 32%),
    radial-gradient(circle at top right, rgba(15, 118, 110, 0.1), transparent 28%),
    linear-gradient(180deg, #fbf7f1 0%, var(--color-bg) 35%, #f4ecde 100%);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(22, 34, 44, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22, 34, 44, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.25), transparent 80%);
}

@media (prefers-reduced-motion: reduce) {
  body::before {
    display: none;
  }
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  touch-action: manipulation;
}

a {
  color: inherit;
  text-decoration: none;
}

p,
ul,
ol {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  margin-top: 0;
  color: var(--color-heading);
  font-family: var(--font-display);
  letter-spacing: -0.03em;
  line-height: 1.1;
  text-wrap: balance;
}

h1 {
  font-size: clamp(3rem, 8vw, var(--font-size-5xl));
}

h2 {
  font-size: clamp(2rem, 5vw, var(--font-size-4xl));
}

h3 {
  font-size: clamp(1.2rem, 2vw, var(--font-size-2xl));
}

p,
li {
  color: var(--color-text-muted);
}

::selection {
  background: rgba(249, 115, 22, 0.22);
}

:focus-visible {
  outline: 3px solid rgba(249, 115, 22, 0.55);
  outline-offset: 3px;
}

[id] {
  scroll-margin-top: 6rem;
}

.container {
  width: min(100%, var(--container-max));
  margin: 0 auto;
  padding-inline: var(--container-padding);
}

.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;
}

.skip-link {
  position: fixed;
  top: -4rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-full);
  background: var(--color-bg-strong);
  color: #fff;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(22, 34, 44, 0.08);
  background: rgba(251, 247, 241, 0.78);
  backdrop-filter: blur(16px);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 4.75rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  min-width: 0;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-heading);
}

.logo-icon {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.85rem;
  background:
    linear-gradient(135deg, rgba(249, 115, 22, 0.18), rgba(15, 118, 110, 0.18)),
    var(--color-surface-strong);
  box-shadow: inset 0 0 0 1px rgba(22, 34, 44, 0.06);
  font-size: 1.2rem;
}

.logo-text {
  white-space: nowrap;
}

.main-nav {
  position: relative;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.6rem 0.95rem;
  border-radius: var(--radius-full);
  color: var(--color-text);
  font-weight: 600;
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast),
    transform var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  background: rgba(255, 255, 255, 0.72);
  color: var(--color-heading);
}

.nav-link--external {
  color: var(--color-primary-dark);
}

.mobile-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.75);
}

.mobile-menu-toggle span {
  position: absolute;
  width: 1.15rem;
  height: 2px;
  border-radius: 999px;
  background: var(--color-heading);
  transition:
    transform var(--transition-fast),
    opacity var(--transition-fast);
}

.mobile-menu-toggle span:nth-child(1) {
  transform: translateY(-0.35rem);
}

.mobile-menu-toggle span:nth-child(3) {
  transform: translateY(0.35rem);
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  width: fit-content;
  padding: 0.45rem 0.8rem;
  border: 1px solid rgba(22, 34, 44, 0.08);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.72);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.section-shell {
  padding-block: clamp(4rem, 8vw, 6rem);
}

.section-title {
  max-width: 15ch;
  margin-bottom: 1rem;
}

.section-lead {
  max-width: 45rem;
  margin-bottom: 0;
  font-size: var(--font-size-lg);
}

.section-header {
  display: grid;
  gap: 1rem;
  margin-bottom: 2rem;
}

.section-header--center {
  justify-items: center;
  text-align: center;
}

.glass-panel {
  background: var(--color-surface);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(14px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 3rem;
  padding: 0.8rem 1.25rem;
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  font-weight: 700;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast);
  will-change: transform;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), #fb923c);
  color: #fff;
  box-shadow: 0 14px 30px rgba(249, 115, 22, 0.25);
}

.btn-primary:hover {
  box-shadow: 0 16px 36px rgba(249, 115, 22, 0.32);
}

.btn-secondary {
  border-color: rgba(22, 34, 44, 0.14);
  background: rgba(255, 255, 255, 0.78);
  color: var(--color-heading);
}

.btn-sm {
  min-height: 2.5rem;
  padding: 0.65rem 0.95rem;
  font-size: var(--font-size-sm);
}

.page-hero {
  padding-block: clamp(4rem, 8vw, 6rem) clamp(2rem, 5vw, 3rem);
}

.page-kicker {
  margin-bottom: 1rem;
}

.page-title {
  max-width: 14ch;
  margin-bottom: 1rem;
}

.page-description {
  max-width: 42rem;
  margin-bottom: 0;
  font-size: var(--font-size-lg);
}

.site-footer {
  margin-top: 4rem;
  padding-block: 3rem 2rem;
  color: rgba(255, 255, 255, 0.8);
  background:
    radial-gradient(circle at top left, rgba(249, 115, 22, 0.18), transparent 28%),
    linear-gradient(180deg, #20323f 0%, #102029 100%);
}

.footer-content {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-brand {
  display: grid;
  gap: 0.75rem;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
}

.footer-tagline,
.footer-note {
  max-width: 36rem;
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.footer-section h3 {
  margin-bottom: 0.8rem;
  color: #fff;
  font-family: var(--font-display);
  font-size: 1rem;
}

.footer-section ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-section li + li {
  margin-top: 0.6rem;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
}

.footer-section a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-bottom p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.68);
}