/* ============================================================
   sanjar.whiteroot.uz — Premium SysAdmin Portfolio
   Design: Dark terminal luxury with neon green accents
   ============================================================ */

/* --- RESET & BASE --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #080c10;
  --bg2:         #0d1117;
  --bg3:         #111820;
  --surface:     #131c24;
  --surface2:    #1a2535;
  --border:      rgba(0, 255, 102, 0.12);
  --border-h:    rgba(0, 255, 102, 0.35);
  --green:       #00ff66;
  --green-dim:   #00cc52;
  --green-glow:  rgba(0, 255, 102, 0.15);
  --cyan:        #00e5ff;
  --amber:       #ffb300;
  --red:         #ff4444;
  --text:        #c9d8e8;
  --text-dim:    #5a7a94;
  --text-bright: #e8f4ff;
  --font-mono:   'Space Mono', 'Courier New', monospace;
  --font-sans:   'Syne', sans-serif;
  --radius:      8px;
  --radius-lg:   16px;
  --transition:  0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.7;
  overflow-x: hidden;
  position: relative;
}

/* --- BACKGROUND EFFECTS --- */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(0, 255, 102, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 102, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.bg-glow {
  position: fixed;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(0,255,102,0.05) 0%, transparent 70%);
  z-index: 0;
  pointer-events: none;
  animation: glowPulse 8s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.5; transform: translateX(-50%) scale(1); }
  50% { opacity: 1; transform: translateX(-50%) scale(1.1); }
}

.scanlines {
  position: fixed;
  inset: 0;
  z-index: 1;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.08) 2px,
    rgba(0,0,0,0.08) 4px
  );
  pointer-events: none;
  animation: scanMove 10s linear infinite;
}

@keyframes scanMove {
  0% { background-position: 0 0; }
  100% { background-position: 0 100px; }
}

/* All sections above z-index overlays */
header, section, footer { position: relative; z-index: 2; }

/* --- NAVBAR --- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 48px;
  background: rgba(8, 12, 16, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.05em;
  color: var(--green);
  display: flex;
  align-items: center;
  gap: 2px;
}
.logo-bracket { color: var(--text-dim); }
.logo-text { color: var(--green); }
.logo-cursor {
  color: var(--green);
  animation: blink 1.2s step-end infinite;
}

.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
}
.nav-links a {
  text-decoration: none;
  color: var(--text-dim);
  font-size: 13px;
  letter-spacing: 0.04em;
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 1px;
  background: var(--green);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.nav-links a:hover { color: var(--green); }
.nav-links a:hover::after { transform: scaleX(1); }

.nav-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-dim);
}
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: statusPulse 2s ease-in-out infinite;
}
@keyframes statusPulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--green); }
  50% { opacity: 0.5; box-shadow: 0 0 20px var(--green); }
}

/* --- HERO --- */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  padding: 120px 80px 80px;
  max-width: 1400px;
  margin: 0 auto;
}

/* Terminal widget */
.hero-terminal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow:
    0 0 60px rgba(0, 255, 102, 0.06),
    0 40px 80px rgba(0,0,0,0.6),
    inset 0 1px 0 rgba(255,255,255,0.05);
  animation: terminalIn 1s cubic-bezier(0.4,0,0.2,1) both;
}

@keyframes terminalIn {
  from { opacity: 0; transform: translateY(30px) scale(0.97); }
  to { opacity: 1; transform: none; }
}

.terminal-bar {
  background: var(--bg3);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}
.t-btn {
  width: 12px; height: 12px;
  border-radius: 50%;
  display: inline-block;
}
.t-close { background: #ff5f57; }
.t-min   { background: #febc2e; }
.t-max   { background: #28c840; }
.t-title {
  margin-left: 12px;
  font-size: 12px;
  color: var(--text-dim);
  flex: 1;
  text-align: center;
}

.terminal-body {
  padding: 24px;
  font-size: 13.5px;
  line-height: 1.9;
}
.t-line {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: baseline;
}
.t-prompt { color: var(--green); font-weight: 700; }
.t-cmd { color: var(--cyan); }
.t-output {
  color: var(--text);
  padding-left: 0;
  margin: 4px 0 12px;
  border-left: 2px solid var(--border);
  padding-left: 12px;
}
.t-key { color: var(--amber); }
.t-val { color: var(--green); }
.t-cursor-blink {
  color: var(--green);
  animation: blink 1s step-end infinite;
}

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

/* Staggered fade-in for terminal lines */
.t-delay-1 { animation: fadeInUp 0.5s 0.8s both ease-out; }
.t-delay-2 { animation: fadeInUp 0.5s 1.4s both ease-out; }
.t-delay-3 { animation: fadeInUp 0.5s 1.8s both ease-out; }
.t-delay-4 { animation: fadeInUp 0.5s 2.4s both ease-out; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

/* Typewriter effect */
.typewriter {
  overflow: hidden;
  white-space: nowrap;
  border-right: 2px solid var(--cyan);
  width: 0;
  animation: typing 1s steps(10) 0.3s forwards, removeCaret 0s 1.3s forwards;
}
@keyframes typing { to { width: 100%; } }
@keyframes removeCaret { to { border-right-color: transparent; } }

/* Hero content */
.hero-content {
  animation: heroContentIn 1s 0.3s both cubic-bezier(0.4,0,0.2,1);
}
@keyframes heroContentIn {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: none; }
}

.hero-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--green);
  border: 1px solid var(--green-glow);
  background: rgba(0, 255, 102, 0.05);
  padding: 6px 14px;
  border-radius: 4px;
  margin-bottom: 24px;
}

.hero-name {
  font-family: var(--font-sans);
  font-size: clamp(60px, 8vw, 110px);
  font-weight: 800;
  line-height: 0.9;
  color: var(--text-bright);
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #ffffff 0%, #00ff66 60%, #00e5ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 400;
  color: var(--text-dim);
  margin-bottom: 40px;
  line-height: 1.5;
}
.hero-subtitle em {
  color: var(--green-dim);
  font-style: italic;
}

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

.btn-primary {
  display: inline-block;
  padding: 14px 32px;
  background: var(--green);
  color: #000;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.05em;
  text-decoration: none;
  border-radius: var(--radius);
  transition: all var(--transition);
  box-shadow: 0 0 30px rgba(0,255,102,0.3);
}
.btn-primary:hover {
  background: #fff;
  box-shadow: 0 0 50px rgba(0,255,102,0.5);
  transform: translateY(-2px);
}

.btn-ghost {
  display: inline-block;
  padding: 14px 32px;
  background: transparent;
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  text-decoration: none;
  border: 1px solid var(--border-h);
  border-radius: var(--radius);
  transition: all var(--transition);
}
.btn-ghost:hover {
  background: var(--green-glow);
  border-color: var(--green);
  transform: translateY(-2px);
}

/* --- SECTIONS COMMON --- */
.section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 100px 60px;
}

.section-label {
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 20px;
}

.section-title {
  font-family: var(--font-sans);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  color: var(--text-bright);
  letter-spacing: -0.02em;
  margin-bottom: 48px;
  line-height: 1.1;
}

/* --- ABOUT --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-text p {
  color: var(--text);
  margin-bottom: 18px;
  font-size: 15px;
  line-height: 1.8;
}
.about-text strong { color: var(--text-bright); }
.highlight {
  color: var(--green);
  font-weight: 700;
}

.about-stats {
  display: flex;
  gap: 32px;
  margin-top: 36px;
  padding-top: 36px;
  border-top: 1px solid var(--border);
}
.stat-item { display: flex; flex-direction: column; gap: 4px; }
.stat-num {
  font-family: var(--font-sans);
  font-size: 36px;
  font-weight: 800;
  color: var(--green);
  line-height: 1;
}
.stat-label {
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Code block */
.code-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-dim);
}
.code-lang {
  color: var(--green);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
pre {
  padding: 24px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.8;
}
code { font-family: var(--font-mono); }
.c-comment { color: #4a6a52; }
.c-var { color: var(--cyan); }
.c-str { color: var(--amber); }
.c-fn { color: var(--green); }
.c-kw { color: #c792ea; }

/* --- SKILLS --- */
.skills-section { background: transparent; }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.skill-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--green-glow), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.skill-card:hover {
  border-color: var(--border-h);
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.4), 0 0 30px rgba(0,255,102,0.08);
}
.skill-card:hover::before { opacity: 1; }

.skill-icon {
  font-size: 28px;
  margin-bottom: 14px;
}
.skill-card h3 {
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 10px;
}
.skill-card p {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 16px;
}
.skill-bar {
  height: 2px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}
.skill-fill {
  height: 100%;
  width: var(--w);
  background: linear-gradient(90deg, var(--green-dim), var(--green));
  border-radius: 2px;
  box-shadow: 0 0 8px var(--green);
  animation: barGrow 1.5s cubic-bezier(0.4,0,0.2,1) both;
}
@keyframes barGrow {
  from { width: 0; }
  to { width: var(--w); }
}

/* --- STACK --- */
.stack-section { padding-bottom: 60px; }

.stack-marquee-wrapper {
  width: 100%;
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
  margin-bottom: 60px;
  mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}
.stack-marquee {
  display: flex;
  gap: 32px;
  align-items: center;
  white-space: nowrap;
  animation: marquee 30s linear infinite;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 20px;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}
.stack-marquee:hover { animation-play-state: paused; }
.stack-marquee .sep { color: var(--green); font-size: 10px; }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: all var(--transition);
}
.service-card:hover {
  border-color: var(--border-h);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}
.service-num {
  font-family: var(--font-sans);
  font-size: 44px;
  font-weight: 800;
  color: var(--border);
  line-height: 1;
  margin-bottom: 16px;
  transition: color var(--transition);
}
.service-card:hover .service-num { color: var(--green); }
.service-card h3 {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 10px;
}
.service-card p {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.7;
}

/* --- CONTACT --- */
.contact-section { text-align: center; }

.contact-desc {
  max-width: 500px;
  margin: 0 auto 48px;
  color: var(--text-dim);
  font-size: 15px;
}

.contact-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 560px;
  margin: 0 auto 48px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition);
  color: inherit;
}
.contact-card:hover {
  transform: translateX(8px);
  border-color: var(--border-h);
  box-shadow: -4px 0 0 var(--green), 0 20px 40px rgba(0,0,0,0.4);
}
.contact-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-icon svg { width: 24px; height: 24px; }

.telegram .contact-icon  { background: rgba(0, 136, 204, 0.15); color: #29b6f6; }
.instagram .contact-icon { background: rgba(225, 48, 108, 0.15); color: #e91e8c; }
.email .contact-icon     { background: rgba(0, 255, 102, 0.12); color: var(--green); }

.contact-info { flex: 1; text-align: left; }
.contact-platform {
  display: block;
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 2px;
}
.contact-handle {
  display: block;
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 700;
  color: var(--text-bright);
}
.contact-arrow {
  color: var(--text-dim);
  font-size: 20px;
  transition: all var(--transition);
}
.contact-card:hover .contact-arrow {
  color: var(--green);
  transform: translateX(4px);
}

.terminal-prompt-contact {
  font-size: 14px;
  color: var(--text-dim);
  margin-top: 12px;
}
.terminal-prompt-contact .t-cmd { color: var(--cyan); }

/* --- FOOTER --- */
.footer {
  border-top: 1px solid var(--border);
  padding: 24px 60px;
  background: rgba(8, 12, 16, 0.8);
  position: relative;
  z-index: 2;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-size: 12px;
  color: var(--text-dim);
}
.footer-center {
  display: flex;
  align-items: center;
  gap: 8px;
}
.heart { color: #ff4466; }
.cmd {
  color: var(--green);
  font-family: var(--font-mono);
}

/* --- SCROLLBAR --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-h); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--green); }

/* --- RESPONSIVE --- */
@media (max-width: 1100px) {
  .hero { grid-template-columns: 1fr; padding: 120px 40px 80px; }
  .hero-terminal { order: 2; }
  .hero-content { order: 1; }
  .hero-name { font-size: 70px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .navbar { padding: 16px 24px; }
  .nav-links { gap: 20px; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .section { padding: 70px 32px; }
}

@media (max-width: 600px) {
  .navbar { padding: 14px 20px; }
  .nav-links { display: none; }
  .hero { padding: 100px 24px 60px; }
  .hero-name { font-size: 52px; }
  .skills-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .about-stats { flex-wrap: wrap; gap: 20px; }
  .footer-inner { flex-direction: column; text-align: center; }
}