/* ============================================
   tilling.io — global styles
   XP-era spirit: warm, rounded, personal
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800;900&family=Sono:wght@400;500;700&display=swap');

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

/* === DESIGN TOKENS === */
:root {
  --sky-dark:     #1a5276;
  --sky:          #2e86c1;
  --sky-mid:      #5dade2;
  --sky-light:    #aed6f1;
  --sky-pale:     #eaf4fb;

  --luna:         #27ae60;
  --luna-light:   #a9dfbf;

  --warm-white:   #fafaf8;
  --warm-off:     #f0ede8;
  --warm-border:  #ddd8d0;

  --ink:          #1c1c1c;
  --ink-mid:      #444;
  --ink-soft:     #777;

  --accent:       #e67e22;
  --accent-light: #fdebd0;

  --radius-sm:    6px;
  --radius-md:    12px;
  --radius-lg:    20px;
  --radius-xl:    32px;

  --shadow-sm:    0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md:    0 4px 12px rgba(0,0,0,0.10), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg:    0 12px 32px rgba(0,0,0,0.12), 0 4px 8px rgba(0,0,0,0.08);

  --font-ui:      'Nunito', sans-serif;
  --font-mono:    'Sono', monospace;

  --nav-h:        64px;
  --max-w:        1100px;
}

/* === BASE === */
body {
  font-family: var(--font-ui);
  background: var(--warm-white);
  color: var(--ink);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }
img  { max-width: 100%; display: block; }

a { color: var(--sky); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--sky-dark); }

/* === LAYOUT === */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); border: 0;
}

/* === XP-STYLE PANEL === */
.panel {
  background: #fff;
  border: 1px solid var(--warm-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.panel-titlebar {
  background: linear-gradient(180deg, var(--sky-mid) 0%, var(--sky) 100%);
  padding: 8px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-titlebar span {
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  flex: 1;
}

.panel-dots { display: flex; gap: 5px; }
.panel-dots i {
  width: 12px; height: 12px;
  border-radius: 50%;
  display: block;
  border: 1px solid rgba(0,0,0,0.15);
}
.panel-dots i:nth-child(1) { background: #f59e0b; }
.panel-dots i:nth-child(2) { background: #10b981; }
.panel-dots i:nth-child(3) { background: #ef4444; }

.panel-body { padding: 24px; }

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  transition: all 0.18s ease;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(180deg, var(--sky-mid) 0%, var(--sky) 100%);
  color: #fff;
  box-shadow: 0 2px 8px rgba(46,134,193,0.35), inset 0 1px 0 rgba(255,255,255,0.25);
}
.btn-primary:hover {
  background: linear-gradient(180deg, #6bb8e8 0%, var(--sky-mid) 100%);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(46,134,193,0.4);
}

.btn-ghost {
  background: transparent;
  color: var(--sky);
  border: 2px solid var(--sky-light);
}
.btn-ghost:hover {
  background: var(--sky-pale);
  border-color: var(--sky);
  color: var(--sky-dark);
  transform: translateY(-1px);
}

/* === TYPOGRAPHY === */
.section-label {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sky);
  margin-bottom: 8px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 900;
  line-height: 1.15;
  color: var(--ink);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--ink-soft);
  margin-top: 12px;
  max-width: 560px;
}

/* === CHIPS === */
.chip {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 99px;
  font-size: 0.78rem;
  font-weight: 700;
  background: var(--sky-pale);
  color: var(--sky-dark);
  border: 1px solid var(--sky-light);
}

/* === DIVIDER === */
.divider { border: none; border-top: 1px solid var(--warm-border); margin: 48px 0; }

/* === PAGE HERO === */
.page-hero { padding: 80px 0 56px; text-align: center; }

/* === ANIMATIONS === */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-up {
  opacity: 0;
  animation: fadeUp 0.5s ease forwards;
}
.delay-1 { animation-delay: 0.08s; }
.delay-2 { animation-delay: 0.16s; }
.delay-3 { animation-delay: 0.24s; }
.delay-4 { animation-delay: 0.32s; }
.delay-5 { animation-delay: 0.40s; }

/* === RESPONSIVE === */
@media (max-width: 768px) {
  :root { --nav-h: 56px; }
  .container { padding: 0 16px; }
}