/* ============================================================
   ckgrafico.com — personal site, light mode, mint-green
   ============================================================ */

:root {
  --mint: #3ecf8e;
  --mint-dark: #2bb673;
  --mint-soft: #d7f5e7;
  --bg: #fbfdfc;
  --bg-alt: #f2f8f5;
  --panel: #ffffff;
  --border: #e3ebe6;
  --text: #1c2b24;
  --text-dim: #5c6b63;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --hand: "Caveat", "Segoe Script", cursive;
  --shadow: 0 10px 40px rgba(43, 182, 115, 0.12);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1040px; margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: 680px; }
.center { text-align: center; }

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

h2 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  letter-spacing: -0.02em;
  margin-bottom: 0.4em;
}

.wave { display: inline-block; }

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, var(--mint-soft), transparent 70%),
    var(--bg);
  padding: 56px 24px 72px;
  text-align: center;
}

#confetti {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.hero-inner { position: relative; z-index: 1; max-width: 900px; margin: 0 auto; }

.hero-banner {
  width: 100%;
  height: auto;
  max-width: 820px;
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.hero-tag {
  font-size: clamp(1.05rem, 2.4vw, 1.35rem);
  color: var(--text-dim);
  margin: 28px auto 0;
  max-width: 620px;
}

.hero-cta {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.hero-cta.center { margin-top: 24px; }

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-block;
  padding: 11px 22px;
  border-radius: 999px;
  border: 1.5px solid var(--border);
  background: var(--panel);
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}

.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--mint); }

.btn.primary {
  background: linear-gradient(135deg, var(--mint), var(--mint-dark));
  border-color: transparent;
  color: #fff;
}

.btn.primary:hover { box-shadow: 0 8px 28px rgba(62, 207, 142, 0.4); }

.btn.sponsor {
  background: linear-gradient(135deg, #ff5b8a, #db61a2);
  border-color: transparent;
  color: #fff;
}

.btn.sponsor:hover { box-shadow: 0 8px 28px rgba(219, 97, 162, 0.45); }

.btn.sponsor .heart {
  display: inline-block;
  color: #fff;
  margin-right: 4px;
  animation: heartbeat 1.4s ease-in-out infinite;
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  15% { transform: scale(1.28); }
  30% { transform: scale(1); }
  45% { transform: scale(1.18); }
}

@media (prefers-reduced-motion: reduce) {
  .btn.sponsor .heart { animation: none; }
}

/* ---------------- Sections ---------------- */
.section { padding: 80px 0; }
.section.alt { background: var(--bg-alt); }

.section-sub {
  color: var(--text-dim);
  max-width: 640px;
  margin-bottom: 2.5rem;
  font-size: 1.05rem;
}
.section-sub.center { margin-left: auto; margin-right: auto; }

/* ---------------- Active projects ---------------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.project {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1.5px solid var(--border);
  border-radius: 18px;
  padding: 28px;
  color: var(--text);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.project:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--mint);
}

.project-emoji {
  font-size: 2rem;
  line-height: 1;
  margin-bottom: 14px;
}

.project h3 { font-size: 1.2rem; margin-bottom: 8px; letter-spacing: -0.01em; }

.project p { color: var(--text-dim); font-size: 0.95rem; flex-grow: 1; }

.project code {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.85em;
  background: var(--bg-alt);
  padding: 0.1em 0.35em;
  border-radius: 5px;
}

.project-links {
  display: flex;
  gap: 8px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.tag {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--bg-alt);
  color: var(--text-dim);
  border: 1px solid var(--border);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.tag[data-href]:hover { cursor: pointer; }

.project:hover .tag.live,
.project:hover .tag.gh {
  background: var(--mint-soft);
  color: var(--mint-dark);
  border-color: var(--mint);
}

/* ---------------- Past projects ---------------- */
.past-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

.past {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--panel);
  border: 1.5px solid var(--border);
  border-radius: 14px;
  padding: 16px 18px;
  color: var(--text);
  transition: transform 0.15s, border-color 0.15s;
}

.past:hover { transform: translateY(-2px); border-color: var(--mint); }

.past span { font-size: 1.6rem; line-height: 1; flex-shrink: 0; }
.past strong { display: block; font-size: 1rem; }
.past small { color: var(--text-dim); font-size: 0.85rem; }

/* ---------------- Footer ---------------- */
.footer {
  border-top: 1.5px solid var(--border);
  padding: 28px 0;
  background: var(--bg-alt);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.footer-links { display: flex; gap: 18px; }

/* ---------------- Scroll reveal ---------------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  #confetti { display: none; }
}

/* ---------------- Responsive ---------------- */
@media (max-width: 560px) {
  .hero { padding: 36px 18px 52px; }
  .section { padding: 56px 0; }
  .footer-inner { flex-direction: column; text-align: center; }
}