/* ═══════════════════════════════════════════════════════════════════════════
   SafisAI — Global Design System
   Console-inspired minimalist tech aesthetic
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Reset & Base ──────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Core palette */
  --black:       #000000;
  --white:       #FFFFFF;
  --off-white:   #F5F5F5;
  --gray-100:    #E8E8E8;
  --gray-200:    #CCCCCC;
  --gray-300:    #999999;
  --gray-400:    #666666;
  --gray-500:    #444444;
  --gray-600:    #222222;
  --gray-700:    #111111;

  /* AI detection level colors */
  --level-none:      #6B7280;
  --level-possible:  #D97706;
  --level-confirmed: #EA580C;
  --level-agent:     #DC2626;

  /* Accent */
  --accent:      #FFFFFF;
  --accent-dim:  rgba(255,255,255,0.06);
  --accent-line: rgba(255,255,255,0.1);

  /* Type */
  --font-mono:  'SF Mono', 'Fira Code', 'JetBrains Mono', 'Cascadia Code', monospace;
  --font-sans:  -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, sans-serif;

  /* Spacing */
  --nav-height: 64px;
  --section-pad: 100px 0;
  --content-max: 1140px;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--black);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }

.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 32px;
}

/* ── Scanline overlay (subtle CRT feel) ───────────────────────────────────── */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(
    to bottom,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.015) 2px,
    rgba(0,0,0,0.015) 4px
  );
}

/* ── Navigation ────────────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--accent-line);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.nav-brand .brand-cursor {
  display: inline-block;
  width: 8px;
  height: 18px;
  background: var(--white);
  animation: blink 1s step-end infinite;
  margin-left: 2px;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--gray-300);
  transition: color 0.2s;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--white);
  transition: width 0.3s ease;
}

.nav-link:hover { color: var(--white); }
.nav-link:hover::after { width: 100%; }
.nav-link.active { color: var(--white); }
.nav-link.active::after { width: 100%; }

.nav-link:focus-visible,
.btn:focus-visible,
.nav-toggle:focus-visible {
  outline: 2px solid var(--white);
  outline-offset: 3px;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  border: 0;
  background: transparent;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  transition: transform 0.3s, opacity 0.3s;
}

/* ── Hero ──────────────────────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridShift 20s linear infinite;
}

@keyframes gridShift {
  0%   { transform: translate(0, 0); }
  100% { transform: translate(60px, 60px); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero-tag {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gray-300);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-tag .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--level-agent);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(1.4); }
}

.hero h1 {
  font-size: clamp(42px, 6vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 24px;
}

.hero h1 span {
  color: var(--gray-300);
}

.hero-desc {
  font-size: 18px;
  color: var(--gray-300);
  max-width: 540px;
  line-height: 1.7;
  margin-bottom: 40px;
}

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

/* ── Buttons ───────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 14px 28px;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-primary {
  background: var(--white);
  color: var(--black);
  border-color: var(--white);
}
.btn-primary:hover {
  background: transparent;
  color: var(--white);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: var(--gray-500);
}
.btn-outline:hover {
  border-color: var(--white);
}

/* ── Sections ──────────────────────────────────────────────────────────────── */
.section {
  padding: var(--section-pad);
  position: relative;
}

.section-divider {
  width: 100%;
  height: 1px;
  background: var(--accent-line);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -1.5px;
  line-height: 1.15;
  margin-bottom: 20px;
}

.section-desc {
  font-size: 16px;
  color: var(--gray-300);
  max-width: 600px;
  line-height: 1.7;
}

/* ── Cards ─────────────────────────────────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 48px;
}

.card {
  background: var(--gray-700);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px;
  padding: 28px;
  transition: border-color 0.3s, transform 0.3s;
}

.card:hover {
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-2px);
}

.card-icon {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 16px;
}

.card-icon.none      { background: rgba(107,114,128,0.2); color: var(--level-none); }
.card-icon.possible  { background: rgba(217,119,6,0.15);  color: var(--level-possible); }
.card-icon.confirmed { background: rgba(234,88,12,0.15);  color: var(--level-confirmed); }
.card-icon.agent     { background: rgba(220,38,38,0.15);  color: var(--level-agent); }

.card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}

.card p {
  font-size: 14px;
  color: var(--gray-300);
  line-height: 1.6;
}

/* ── Image placeholder ─────────────────────────────────────────────────────── */
.img-placeholder {
  background: var(--gray-700);
  border: 1px dashed var(--gray-500);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 8px;
  color: var(--gray-400);
  font-family: var(--font-mono);
  font-size: 12px;
  min-height: 200px;
  position: relative;
  overflow: hidden;
}

.img-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.02) 50%, transparent 60%);
  animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.img-placeholder svg {
  width: 32px;
  height: 32px;
  stroke: var(--gray-500);
}

/* ── Console block (decorative) ────────────────────────────────────────────── */
.console-block {
  background: var(--gray-700);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.8;
  color: var(--gray-300);
  overflow-x: auto;
}

.console-block .prompt { color: var(--gray-400); }
.console-block .cmd    { color: var(--white); }
.console-block .output { color: var(--gray-300); }
.console-block .success { color: #22C55E; }
.console-block .warn    { color: var(--level-possible); }
.console-block .error   { color: var(--level-agent); }

/* ── Stats row ─────────────────────────────────────────────────────────────── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 20px;
  margin-top: 48px;
}

.stat {
  text-align: center;
  padding: 24px 16px;
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px;
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 12px;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ── Roadmap ───────────────────────────────────────────────────────────────── */
.roadmap-container {
  position: relative;
  padding: 60px 0;
}

.roadmap-line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    var(--gray-500) 5%,
    var(--gray-500) 95%,
    transparent 100%
  );
  transform: translateX(-50%);
}

.roadmap-item {
  position: relative;
  display: flex;
  align-items: flex-start;
  margin-bottom: 80px;
}

.roadmap-item:last-child { margin-bottom: 0; }

.roadmap-item:nth-child(odd) {
  flex-direction: row;
  padding-right: calc(50% + 40px);
  text-align: right;
}

.roadmap-item:nth-child(even) {
  flex-direction: row-reverse;
  padding-left: calc(50% + 40px);
  text-align: left;
}

/* Pin on the center line */
.roadmap-pin {
  position: absolute;
  left: 50%;
  top: 8px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 3px solid var(--black);
  transform: translateX(-50%);
  z-index: 2;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
}

.roadmap-pin::after {
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: inherit;
  opacity: 0;
  animation: ping 2s ease-out infinite;
}

@keyframes ping {
  0%   { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(2.5); opacity: 0; }
}

.roadmap-pin.none      { background: var(--level-none); }
.roadmap-pin.possible  { background: var(--level-possible); }
.roadmap-pin.confirmed { background: var(--level-confirmed); }
.roadmap-pin.agent     { background: var(--level-agent); }
.roadmap-pin.complete  { background: #22C55E; }
.roadmap-pin.future    { background: var(--gray-500); border-style: dashed; }

.roadmap-item:hover .roadmap-pin {
  transform: translateX(-50%) scale(1.3);
  box-shadow: 0 0 20px rgba(255,255,255,0.15);
}

/* Roadmap card */
.roadmap-card {
  background: var(--gray-700);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px;
  padding: 24px;
  width: 100%;
  transition: border-color 0.3s, transform 0.3s;
}

.roadmap-item:hover .roadmap-card {
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-2px);
}

.roadmap-phase {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 6px;
}

.roadmap-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}

.roadmap-card p {
  font-size: 14px;
  color: var(--gray-300);
  line-height: 1.6;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.4s ease, opacity 0.3s ease, margin 0.3s ease;
}

.roadmap-item:hover .roadmap-card p,
.roadmap-item.active .roadmap-card p {
  max-height: 200px;
  opacity: 1;
  margin-top: 4px;
}

.roadmap-status {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 3px;
  margin-top: 12px;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.4s ease, opacity 0.3s ease;
}

.roadmap-item:hover .roadmap-status,
.roadmap-item.active .roadmap-status {
  max-height: 30px;
  opacity: 1;
}

.roadmap-status.current   { background: rgba(234,88,12,0.15); color: var(--level-confirmed); }
.roadmap-status.upcoming  { background: rgba(217,119,6,0.12); color: var(--level-possible); }
.roadmap-status.planned   { background: rgba(107,114,128,0.15); color: var(--level-none); }
.roadmap-status.completed { background: rgba(34,197,94,0.12); color: #22C55E; }

/* ── Team grid ─────────────────────────────────────────────────────────────── */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.team-card {
  text-align: center;
  padding: 32px 20px;
  background: var(--gray-700);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px;
  transition: border-color 0.3s, transform 0.3s;
}

.team-card:hover {
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-2px);
}

.team-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 16px;
}

.team-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.team-card .role {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── Footer ────────────────────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--accent-line);
  padding: 48px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 14px;
  color: var(--gray-400);
  line-height: 1.6;
  max-width: 280px;
}

.footer h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 16px;
}

.footer a {
  display: block;
  font-size: 14px;
  color: var(--gray-300);
  padding: 4px 0;
  transition: color 0.2s;
}

.footer a:hover { color: var(--white); }

.footer-bottom {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--gray-500);
}

/* ── Scroll animations ─────────────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── Page header (for inner pages) ─────────────────────────────────────────── */
.page-header {
  padding: 160px 0 80px;
  border-bottom: 1px solid var(--accent-line);
}

/* ── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  :root { --nav-height: 56px; --section-pad: 64px 0; }
  .container { padding: 0 20px; }

  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-height);
    left: 0; right: 0;
    background: rgba(0,0,0,0.95);
    padding: 24px 20px;
    gap: 20px;
    border-bottom: 1px solid var(--accent-line);
  }

  .hero h1 { letter-spacing: -1px; }
  .about-grid { grid-template-columns: 1fr !important; }

  /* Roadmap goes single-column */
  .roadmap-line { left: 20px; }
  .roadmap-item,
  .roadmap-item:nth-child(odd),
  .roadmap-item:nth-child(even) {
    flex-direction: row;
    padding-left: 52px;
    padding-right: 0;
    text-align: left;
  }
  .roadmap-pin,
  .roadmap-item:nth-child(odd) .roadmap-pin,
  .roadmap-item:nth-child(even) .roadmap-pin {
    left: 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .stats-row { grid-template-columns: repeat(2, 1fr); }
}