/* ============================================================
   CHAINSAW CLIMBING CLASS — CLEAN, READABLE THEME
   Dark • Chainsaw Orange • Safety Green • Bark Brown • Metal
   ============================================================ */

:root {
  --bg: #0a0a0a;
  --bg-alt: #141414;
  --panel: #1a1a1a;
  --card-bg: #1f1f1f;

  --bark: #3b2d1c;
  --bark-dark: #2a1f14;

  --chainsaw: #ff6a00;
  --chainsaw-glow: #ff8c33;
  --chainsaw-dark: #cc5200;

  --safety: #3dd65c;
  --safety-dark: #1f7f31;

  --text: #f5f2ec;      /* readable light text */
  --muted: #b38a6a;     /* brownish muted */

  --radius: 20px;
  --radius-sm: 12px;

  --shadow: 0 0 25px rgba(0,0,0,0.6);
  --shadow-soft: 0 0 15px rgba(0,0,0,0.4);

  --font-main: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* RESET ------------------------------------------------------ */

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

body {
  margin: 0;
  font-family: var(--font-main);
  background: radial-gradient(circle at top, #1a1a1a 0%, #050505 60%, #000 100%);
  background-image: url('/img/textures/bark-dark.jpg');
  background-size: cover;
  background-attachment: fixed;
  color: var(--text);
  overflow-x: hidden;
}

/* GLOBAL TEXT ------------------------------------------------ */

body, p, li, span, label {
  color: var(--text);
}

a {
  color: var(--chainsaw-glow);
  text-decoration: none;
}

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

/* HEADINGS --------------------------------------------------- */

h1, h2, h3, h4 {
  color: var(--chainsaw-glow);
  text-shadow:
    0 0 10px rgba(255,106,0,0.6),
    0 0 18px rgba(255,140,51,0.5);
  font-weight: 800;
  letter-spacing: 0.03em;
}

/* HEADER ----------------------------------------------------- */

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 5vw;
  background: rgba(10,10,10,0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 0 20px rgba(0,0,0,0.7);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 900;
  font-size: 1.2rem;
  letter-spacing: 0.05em;
  color: var(--chainsaw);
}

.logo::before {
  content: "🪚";
  font-size: 1.5rem;
}

/* NAV -------------------------------------------------------- */

.main-nav a {
  margin-left: 1rem;
  font-size: 1rem;
  color: var(--muted);
  transition: 0.25s ease;
}

.main-nav a:hover {
  color: var(--safety);
  text-shadow: 0 0 10px rgba(61,214,92,0.7);
  transform: translateY(-2px);
}

/* HERO ------------------------------------------------------- */

.hero {
  min-height: 55vh;
  display: flex;
  align-items: center;
  padding: 2rem 5vw;
}

.hero h1 {
  font-size: 3rem;
}

.hero p {
  max-width: 560px;
  color: var(--muted);
}

/* SECTIONS --------------------------------------------------- */

.section {
  padding: 3rem 5vw;
}

.section-alt {
  background: rgba(20,18,14,0.85);
  margin: 3rem -5vw 0;
  padding: 3rem 5vw;
  border-top: 1px solid rgba(255,255,255,0.08);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

/* GRID ------------------------------------------------------- */

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

/* CARDS ------------------------------------------------------ */

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 1.5rem;
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: var(--shadow);
  background-image: url('/img/textures/bark-mid.jpg');
  background-size: cover;
  background-blend-mode: multiply;
  transition: 0.25s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 0 30px rgba(255,106,0,0.4);
}

/* BUTTONS ---------------------------------------------------- */

.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  transition: 0.25s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--chainsaw), var(--chainsaw-dark));
  color: #fff;
  box-shadow: 0 0 14px rgba(255,106,0,0.45);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--chainsaw-glow), var(--chainsaw));
  transform: translateY(-3px);
}

.btn-secondary {
  background: transparent;
  color: var(--safety);
  border: 1px solid var(--safety);
}

.btn-secondary:hover {
  background: rgba(61,214,92,0.12);
}

/* FORMS ------------------------------------------------------ */

input,
select,
textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(15,15,15,0.9);
  color: var(--text);
  font-size: 1rem;
  box-shadow: inset 0 0 10px rgba(0,0,0,0.6);
  transition: 0.25s ease;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--safety);
  box-shadow: 0 0 12px rgba(61,214,92,0.4);
  outline: none;
}

/* FOOTER ----------------------------------------------------- */

.site-footer {
  padding: 1.5rem 5vw;
  background: rgba(10,10,10,0.9);
  border-top: 1px solid rgba(255,255,255,0.08);
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}

/* RESPONSIVE ------------------------------------------------- */

@media (max-width: 640px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .hero {
    padding: 2rem 5vw;
  }

  .hero h1 {
    font-size: 2.2rem;
  }
}