/* ==========================================================================
   Alex Rivera Portfolio Template — base theme
   Edit the CSS variables below to change the whole color scheme at once.
   ========================================================================== */

:root {
  --bg: #0c0a09;
  --bg-alt: #14110f;
  --bg-card: #18140f;
  --border: #2a231b;
  --text: #f5f1ea;
  --text-dim: #b3a89a;
  --text-dimmer: #7d7263;
  --accent: #f59e0b;
  --accent-bright: #fbbf24;
  --accent-text: #1a1206;

  --container-width: 1100px;
  --radius: 10px;
  --radius-lg: 16px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --header-h: 72px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
h1, h2, h3 { line-height: 1.2; font-weight: 700; letter-spacing: -0.02em; }

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

.section { padding: 96px 0; }

.section-head {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 56px;
}

.eyebrow {
  display: inline-block;
  color: var(--accent-bright);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-head h2 { font-size: clamp(28px, 4vw, 38px); margin-bottom: 14px; }
.section-head p { color: var(--text-dim); font-size: 17px; }

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-text);
}

.btn-primary:hover {
  background: var(--accent-bright);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-ghost:hover {
  border-color: var(--text-dim);
  background: var(--bg-alt);
}

.btn-lg { padding: 16px 32px; font-size: 16px; }

/* Header / Nav */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(12, 10, 9, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo { font-size: 19px; font-weight: 800; color: var(--text); }
.logo span { color: var(--accent-bright); }

.main-nav ul { display: flex; gap: 32px; }

.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-dim);
  transition: color 0.15s ease;
}

.main-nav a:hover { color: var(--text); }

.header-actions { display: flex; align-items: center; gap: 12px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 16px;
  height: 2px;
  margin: 0 auto;
  background: var(--text);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */

.hero {
  position: relative;
  padding: 120px 0 100px;
  overflow: hidden;
  text-align: center;
}

.hero::before {
  content: "";
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 500px;
  background: radial-gradient(ellipse at center, rgba(245, 158, 11, 0.22), transparent 70%);
  filter: blur(40px);
  pointer-events: none;
}

.hero-inner { position: relative; max-width: 760px; margin: 0 auto; }

.hero .eyebrow {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 6px 14px;
  border-radius: 999px;
}

.hero h1 { font-size: clamp(34px, 5.5vw, 54px); margin: 24px 0 20px; }
.hero h1 .accent { color: var(--accent-bright); }

.hero p.lead {
  font-size: 18px;
  color: var(--text-dim);
  max-width: 580px;
  margin: 0 auto 36px;
}

.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* About */

.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 56px;
  align-items: start;
}

.about-grid .lead { font-size: 18px; color: var(--text-dim); margin: 16px 0; }
.about-grid p:not(.lead) { color: var(--text-dim); }

.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: flex-start;
}

.skill-chip {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--text-dim);
}

/* Work grid */

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.work-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.work-card:hover {
  border-color: rgba(245, 158, 11, 0.4);
  transform: translateY(-2px);
}

.work-thumb {
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-weight: 800;
  color: var(--text-dimmer);
  background:
    linear-gradient(135deg, rgba(245, 158, 11, 0.18), rgba(245, 158, 11, 0.04)),
    repeating-linear-gradient(45deg, rgba(255,255,255,0.03) 0 2px, transparent 2px 12px);
  border-bottom: 1px solid var(--border);
}

.work-body { padding: 22px 24px 26px; }

.work-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-bright);
  margin-bottom: 10px;
}

.work-body h3 { font-size: 18px; margin-bottom: 8px; }
.work-body p { color: var(--text-dim); font-size: 15px; }

/* Contact */

.contact-inner { text-align: center; max-width: 560px; margin: 0 auto; }
.contact-inner .lead { color: var(--text-dim); font-size: 17px; margin: 14px 0 32px; }

.social-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 28px;
}

.social-links a {
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.15s ease;
}

.social-links a:hover { color: var(--accent-bright); }

/* Demo banner (not part of the sold package) */

.demo-banner {
  background: var(--accent);
  color: var(--accent-text);
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 16px;
}

.demo-banner a {
  text-decoration: underline;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}

.footer-bottom {
  text-align: center;
  color: var(--text-dimmer);
  font-size: 13px;
}

/* Responsive */

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .work-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .main-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  .main-nav.is-open { max-height: 240px; }

  .main-nav ul { flex-direction: column; padding: 8px 24px 20px; gap: 4px; }

  .main-nav a {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
  }

  .nav-toggle { display: flex; }

  .section { padding: 64px 0; }
  .hero { padding: 80px 0 64px; }
}