/* ============================================================
   FURQAN AHMAD — CYBER PORTFOLIO DESIGN SYSTEM
   Tokens: colors, type, spacing, motion
   Aesthetic: terminal / red-team / CRT-futurism
   ============================================================ */

/* --- Fonts (Google Fonts — distinctive, tech-forward pairing) ---
   Display:      Chakra Petch     (angular, military/HUD, geometric — hero + titles)
   UI sans:      Orbitron         (sci-fi geometric, used sparingly for labels/accents)
                 + Syne            (warped display for feature headers)
   Body sans:    Rajdhani         (condensed, technical)
   Mono/Data:    JetBrains Mono + Share Tech Mono (retro CRT feel for logs/hex)
*/
@import url('https://fonts.googleapis.com/css2?family=Chakra+Petch:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400;1,700&family=Syne:wght@400;500;600;700;800&family=Rajdhani:wght@300;400;500;600;700&family=Orbitron:wght@400;500;600;700;800;900&family=JetBrains+Mono:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400&family=Share+Tech+Mono&display=swap');

:root {
  /* ---------- COLORS ---------- */

  /* Base canvas — deep void with a green undertone */
  --bg-void:        #05070a;   /* page background */
  --bg-base:        #0a0f14;   /* primary surface */
  --bg-raised:      #0f161d;   /* cards, panels */
  --bg-sunken:      #070a0e;   /* terminals, code */
  --bg-overlay:     rgba(5, 7, 10, 0.72);

  /* Foreground — phosphor palette */
  --fg-primary:     #e6f4ef;   /* primary text */
  --fg-secondary:   #8aa39b;   /* secondary text */
  --fg-muted:       #4c615b;   /* muted / meta */
  --fg-disabled:    #2a3531;

  /* Primary accent — neon terminal green (phosphor) */
  --accent-green:       #00ff9c;
  --accent-green-dim:   #00c277;
  --accent-green-deep:  #0b3a2a;
  --accent-green-glow:  rgba(0, 255, 156, 0.45);

  /* Secondary accent — cyber cyan (data / links) */
  --accent-cyan:        #5cf3ff;
  --accent-cyan-dim:    #2fb8c7;
  --accent-cyan-deep:   #0a2a32;
  --accent-cyan-glow:   rgba(92, 243, 255, 0.40);

  /* Alert / red team — critical */
  --accent-red:         #ff3855;
  --accent-red-dim:     #c32138;
  --accent-red-deep:    #3a0a14;
  --accent-red-glow:    rgba(255, 56, 85, 0.45);

  /* Warning — amber/xterm */
  --accent-amber:       #ffb547;
  --accent-amber-dim:   #c78a27;
  --accent-amber-deep:  #3a2a0a;

  /* Magenta — accent / highlights */
  --accent-magenta:     #ff5cf0;
  --accent-magenta-dim: #c42bb4;

  /* Borders & dividers */
  --border-subtle:  rgba(138, 163, 155, 0.12);
  --border-base:    rgba(138, 163, 155, 0.22);
  --border-strong:  rgba(0, 255, 156, 0.35);
  --border-hot:     var(--accent-green);

  /* Semantic */
  --severity-critical: var(--accent-red);
  --severity-high:     #ff7a2e;
  --severity-medium:   var(--accent-amber);
  --severity-low:      var(--accent-cyan);
  --severity-info:     var(--fg-secondary);
  --status-online:     var(--accent-green);
  --status-offline:    var(--fg-muted);

  /* ---------- TYPOGRAPHY ---------- */
  --font-mono:     'JetBrains Mono', ui-monospace, monospace;
  --font-data:     'Share Tech Mono', 'JetBrains Mono', ui-monospace, monospace;
  --font-sans:     'Rajdhani', 'Chakra Petch', system-ui, sans-serif;
  --font-display:  'Chakra Petch', 'Orbitron', system-ui, sans-serif;
  --font-feature:  'Syne', 'Chakra Petch', system-ui, sans-serif;
  --font-brand:    'Orbitron', 'Chakra Petch', system-ui, sans-serif;

  /* Type scale (fluid-ready, base 16) */
  --fs-xs:   11px;
  --fs-sm:   13px;
  --fs-base: 15px;
  --fs-md:   17px;
  --fs-lg:   20px;
  --fs-xl:   26px;
  --fs-2xl:  34px;
  --fs-3xl:  48px;
  --fs-4xl:  68px;
  --fs-5xl:  96px;
  --fs-hero: clamp(56px, 9vw, 140px);

  --lh-tight: 1.05;
  --lh-snug:  1.25;
  --lh-base:  1.55;
  --lh-loose: 1.75;

  --ls-tight:  -0.02em;
  --ls-base:    0em;
  --ls-wide:    0.06em;
  --ls-widest:  0.22em;  /* for terminal-label uppercase tracking */

  /* ---------- SPACING (4px baseline) ---------- */
  --sp-0:  0;
  --sp-1:  4px;
  --sp-2:  8px;
  --sp-3:  12px;
  --sp-4:  16px;
  --sp-5:  24px;
  --sp-6:  32px;
  --sp-7:  48px;
  --sp-8:  64px;
  --sp-9:  96px;
  --sp-10: 128px;

  /* ---------- RADII (mostly sharp — this is a terminal) ---------- */
  --r-0:  0px;
  --r-1:  2px;
  --r-2:  4px;
  --r-3:  6px;
  --r-4:  10px;
  --r-pill: 999px;

  /* ---------- SHADOWS / GLOW ---------- */
  --shadow-flat:   0 0 0 1px var(--border-subtle);
  --shadow-card:   0 8px 24px rgba(0,0,0,0.45), 0 0 0 1px var(--border-subtle);
  --shadow-raised: 0 18px 48px rgba(0,0,0,0.55), 0 0 0 1px var(--border-base);
  --glow-green:    0 0 24px var(--accent-green-glow), 0 0 2px var(--accent-green);
  --glow-cyan:     0 0 24px var(--accent-cyan-glow), 0 0 2px var(--accent-cyan);
  --glow-red:      0 0 24px var(--accent-red-glow), 0 0 2px var(--accent-red);
  --text-glow-green: 0 0 8px var(--accent-green-glow);
  --text-glow-cyan:  0 0 8px var(--accent-cyan-glow);

  /* ---------- MOTION ---------- */
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-out-expo:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:    cubic-bezier(0.65, 0, 0.35, 1);
  --ease-hacker:    steps(8, end); /* glitch typing */

  --dur-instant: 80ms;
  --dur-fast:    140ms;
  --dur-base:    220ms;
  --dur-slow:    420ms;
  --dur-long:    900ms;

  /* ---------- GRID / LAYOUT ---------- */
  --container-max: 1440px;
  --gutter:        var(--sp-5);

  /* ---------- TEXTURES ---------- */
  --grid-line: rgba(0, 255, 156, 0.06);
  --scanline:  repeating-linear-gradient(
                 to bottom,
                 transparent 0,
                 transparent 2px,
                 rgba(0, 255, 156, 0.04) 3px,
                 transparent 4px
               );
  --bg-grid:   linear-gradient(var(--grid-line) 1px, transparent 1px) 0 0 / 40px 40px,
               linear-gradient(90deg, var(--grid-line) 1px, transparent 1px) 0 0 / 40px 40px;
}

/* ============================================================
   SEMANTIC TYPE STYLES
   Use these directly: .h1, .h2, .body, .mono, .label, etc.
   ============================================================ */

.display {
  font-family: var(--font-feature);
  font-size: var(--fs-hero);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  font-weight: 700;
  color: var(--fg-primary);
  font-stretch: 110%;
}

.h1 {
  font-family: var(--font-feature);
  font-size: clamp(36px, 6vw, 68px);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  font-weight: 700;
  color: var(--fg-primary);
}

.h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4.4vw, 48px);
  line-height: var(--lh-snug);
  letter-spacing: 0.01em;
  font-weight: 600;
  color: var(--fg-primary);
}

.h3 {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: var(--lh-snug);
  font-weight: 600;
  color: var(--fg-primary);
}

.h4 {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 26px);
  line-height: var(--lh-snug);
  font-weight: 500;
  color: var(--fg-primary);
  letter-spacing: 0.02em;
}

.brand {
  font-family: var(--font-brand);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-widest);
  text-transform: uppercase;
  color: var(--accent-green);
  font-weight: 500;
}

.body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  color: var(--fg-primary);
  font-weight: 400;
}

.body-lg {
  font-family: var(--font-sans);
  font-size: var(--fs-md);
  line-height: var(--lh-base);
  color: var(--fg-primary);
}

.body-sm {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  line-height: var(--lh-base);
  color: var(--fg-secondary);
}

.mono {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  line-height: var(--lh-base);
  color: var(--accent-green);
  letter-spacing: 0;
}

.code {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  background: var(--bg-sunken);
  color: var(--accent-cyan);
  padding: 2px 6px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-2);
}

.label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--fg-secondary);
  font-weight: 500;
}

.meta {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--fg-muted);
  letter-spacing: 0.02em;
}

.cli-prompt::before {
  content: "$ ";
  color: var(--accent-green);
  opacity: 0.9;
}

.link {
  color: var(--accent-cyan);
  text-decoration: underline;
  text-decoration-color: var(--accent-cyan-dim);
  text-underline-offset: 3px;
  transition: color var(--dur-fast) var(--ease-out-quart);
}
.link:hover { color: var(--fg-primary); text-decoration-color: var(--accent-cyan); }