/* ========= DEF CON 34 — defcon34.franpolignano.com ========= */

:root {
  --bg: #050505;
  --bg-panel: #0a0f0a;
  --green: #00ff41;
  --green-dim: #00b32e;
  --magenta: #ff2a6d;
  --cyan: #05d9e8;
  --text: #c8ffc8;
  --text-dim: #6a9a6a;
  --border: #113311;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Courier New", Courier, monospace;
  line-height: 1.6;
  overflow-x: hidden;
}

::selection { background: var(--green); color: #000; }

a { color: var(--green); text-decoration: none; }
a:hover { background: var(--green); color: #000; }

/* ---------- matrix rain canvas ---------- */
#matrix {
  position: fixed;
  inset: 0;
  z-index: -2;
  opacity: 0.35;
}

/* ---------- CRT scanlines overlay ---------- */
.scanlines {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 2px,
    rgba(0, 0, 0, 0.15) 3px
  );
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 2rem 1rem;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(to bottom,
      rgba(5, 5, 5, 0.15),
      rgba(5, 5, 5, 0.22) 55%,
      var(--bg) 96%),
    url("../images/IMG_1627.jpg") center 62% / cover no-repeat;
  filter: saturate(1.15) contrast(1.05) brightness(1.16);
}

.hero-pre {
  color: var(--text);
  letter-spacing: 0.3em;
  font-size: 0.8rem;
  margin-bottom: 1rem;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.9);
}

.glitch {
  font-size: clamp(2.8rem, 12vw, 7rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--green);
  text-shadow: 0 0 10px rgba(0, 255, 65, 0.6), 0 0 40px rgba(0, 255, 65, 0.3);
  position: relative;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.glitch::before {
  color: var(--magenta);
  animation: glitch-1 2.5s infinite linear alternate-reverse;
  clip-path: inset(20% 0 60% 0);
}

.glitch::after {
  color: var(--cyan);
  animation: glitch-2 3s infinite linear alternate-reverse;
  clip-path: inset(60% 0 10% 0);
}

@keyframes glitch-1 {
  0%, 82%, 100% { transform: none; opacity: 0; }
  84% { transform: translate(-4px, 2px); opacity: 0.8; }
  88% { transform: translate(3px, -1px); opacity: 0.8; }
  92% { transform: none; opacity: 0; }
}

@keyframes glitch-2 {
  0%, 78%, 100% { transform: none; opacity: 0; }
  80% { transform: translate(4px, 1px); opacity: 0.8; }
  85% { transform: translate(-3px, -2px); opacity: 0.8; }
  90% { transform: none; opacity: 0; }
}

.hero-sub {
  margin-top: 1.5rem;
  font-size: clamp(0.85rem, 2.5vw, 1.1rem);
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.9);
}

.nav a { text-shadow: 0 1px 6px rgba(0, 0, 0, 0.9); }

.prompt { color: var(--magenta); }

.cursor {
  color: var(--green);
  animation: blink 1s step-end infinite;
}

@keyframes blink { 50% { opacity: 0; } }

.nav {
  margin-top: 3rem;
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.nav a { padding: 0.3rem 0.5rem; letter-spacing: 0.1em; }

/* ---------- sections ---------- */
main {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.25rem 4rem;
}

section { margin-bottom: 5rem; }

h2 {
  color: var(--green);
  font-size: 1.6rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
  text-shadow: 0 0 8px rgba(0, 255, 65, 0.4);
}

.section-num { color: var(--magenta); margin-right: 0.5rem; }

.hl { color: var(--cyan); }

/* ---------- terminal box ---------- */
.terminal-box {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 0 25px rgba(0, 255, 65, 0.08);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

.dot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.terminal-title {
  margin-left: 0.5rem;
  color: var(--text-dim);
  font-size: 0.8rem;
}

.terminal-body { padding: 1.25rem; }
.terminal-body p + p { margin-top: 1rem; }

/* ---------- talk cards ---------- */
.talk-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--green);
  border-radius: 4px;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.talk-card:hover {
  transform: translateX(4px);
  box-shadow: 0 0 20px rgba(0, 255, 65, 0.15);
}

.talk-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.6rem;
  font-size: 0.75rem;
  color: var(--text-dim);
}

.tag {
  border: 1px solid var(--green);
  color: var(--green);
  padding: 0.1rem 0.5rem;
  letter-spacing: 0.15em;
  font-size: 0.7rem;
}

.tag.magenta { border-color: var(--magenta); color: var(--magenta); }
.tag.cyan { border-color: var(--cyan); color: var(--cyan); }

.talk-card h3 { color: var(--text); margin-bottom: 0.25rem; }

.talk-speaker {
  color: var(--magenta);
  font-size: 0.85rem;
  margin-bottom: 0.6rem;
}

/* ---------- photo grid ---------- */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.photo {
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  background: var(--bg-panel);
}

.photo img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  filter: saturate(0.9) contrast(1.05);
}

.photo .ph {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  background:
    linear-gradient(135deg, transparent 48%, var(--border) 49%, var(--border) 51%, transparent 52%),
    var(--bg-panel);
}

.photo figcaption {
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
}

/* ---------- footer ---------- */
footer {
  text-align: center;
  padding: 2.5rem 1rem;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
}

.footer-small {
  font-size: 0.75rem;
  margin-top: 0.5rem;
  letter-spacing: 0.2em;
}