@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600;700&family=IBM+Plex+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  --bg-main: #060A12;
  --bg-panel: #0E1626;
  --bg-elevated: #152035;
  --cyan: #00F0FF;
  --green: #00FF85;
  --amber: #FFB800;
  --purple: #B026FF;
  --rose: #FF2E63;
  --text-white: #FFFFFF;
  --text-sub: #8B9BB4;
  --text-muted: #566885;
  --border-cyan: rgba(0, 240, 255, 0.3);
  --border-sub: rgba(0, 240, 255, 0.15);
  --font-sans: 'IBM Plex Sans', sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-main);
  color: var(--text-sub);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Shifting 4-Color Mesh Glow Backdrop */
.mesh-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: 
    radial-gradient(circle at 15% 20%, rgba(0, 240, 255, 0.15) 0%, transparent 45%),
    radial-gradient(circle at 85% 30%, rgba(176, 38, 255, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 70% 80%, rgba(0, 255, 133, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 25% 75%, rgba(255, 184, 0, 0.1) 0%, transparent 45%);
  animation: meshShift 20s ease-in-out infinite alternate;
}

@keyframes meshShift {
  0% { transform: scale(1) translate(0, 0); }
  50% { transform: scale(1.05) translate(-15px, 15px); }
  100% { transform: scale(1.02) translate(15px, -10px); }
}

/* Cyber Grid Lines Overlay */
.grid-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: 
    linear-gradient(to right, rgba(0, 240, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* Animated Multi-Color Gradient Text */
.animated-gradient-text {
  background: linear-gradient(135deg, #FFFFFF 0%, #00F0FF 40%, #00FF85 70%, #FFB800 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: textGradientShift 6s ease infinite alternate;
}

@keyframes textGradientShift {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

/* Flashing Cyber LED */
.cyber-led {
  animation: ledPulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes ledPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* 3D Levitation Float */
.animate-float {
  animation: floatPhysics 6s ease-in-out infinite;
}

@keyframes floatPhysics {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(1deg); }
}

/* Container */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 10;
}

/* Header Navbar */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(6, 10, 18, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-cyan);
  box-shadow: 0 4px 25px rgba(0, 0, 0, 0.6);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text-white);
  text-decoration: none;
  letter-spacing: 0.05em;
  font-size: 16px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-sub);
  text-decoration: none;
  transition: color 0.2s ease;
  letter-spacing: 0.08em;
}

.nav-links a:hover {
  color: var(--cyan);
}

.btn-cyan {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  padding: 10px 18px;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  background: transparent;
  border-radius: 3px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-cyan:hover {
  background: var(--cyan);
  color: var(--bg-main);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.5);
}

.btn-amber {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  padding: 10px 18px;
  border: 1px solid var(--amber);
  color: var(--amber);
  background: transparent;
  border-radius: 3px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-amber:hover {
  background: var(--amber);
  color: var(--bg-main);
  box-shadow: 0 0 20px rgba(255, 184, 0, 0.5);
}

/* Hero Console Section */
.hero-section {
  padding: 80px 0;
  position: relative;
  z-index: 10;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr 400px;
  }
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid rgba(0, 240, 255, 0.3);
  background: rgba(0, 240, 255, 0.08);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
  margin-bottom: 24px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 16px;
}

@media (min-width: 768px) {
  .hero-title { font-size: 64px; }
}

.typewriter-role {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--green);
  margin-bottom: 24px;
  min-height: 32px;
}

@media (min-width: 768px) {
  .typewriter-role { font-size: 26px; }
}

.hero-desc {
  font-size: 16px;
  color: var(--text-sub);
  max-width: 600px;
  margin-bottom: 32px;
  line-height: 1.7;
}

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

/* Hero Levitating Card */
.portrait-card {
  position: relative;
  background: var(--bg-panel);
  border: 1px solid var(--border-cyan);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
}

.portrait-img {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  display: block;
}

.portrait-badge {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  padding: 12px 16px;
  background: rgba(6, 10, 18, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-cyan);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-white);
  text-align: center;
}

/* Metric Counter Bar */
.metrics-bar {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 48px;
  padding: 24px;
  background: rgba(14, 22, 38, 0.7);
  border: 1px solid var(--border-cyan);
  border-radius: 8px;
}

@media (min-width: 768px) {
  .metrics-bar { grid-template-columns: repeat(4, 1fr); }
}

.metric-item {
  text-align: center;
}

.metric-val {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--cyan);
}

.metric-lbl {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 4px;
}

/* Section Header */
.section-tag {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  font-weight: 700;
  margin-bottom: 32px;
}

.section-tag::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(0, 240, 255, 0.2);
}

/* Skills Rack Enclosure */
.rack-box {
  background: #090E18;
  border: 2px solid rgba(0, 240, 255, 0.3);
  border-radius: 8px;
  overflow: hidden;
}

.rack-unit {
  padding: 20px 24px;
  border-bottom: 1px solid rgba(0, 240, 255, 0.15);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

@media (min-width: 768px) {
  .rack-unit {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.rack-unit:last-child {
  border-bottom: none;
}

.unit-head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.unit-code {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 8px;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid var(--cyan);
  color: var(--cyan);
  border-radius: 2px;
}

.unit-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-white);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 6px 12px;
  background: var(--bg-panel);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-white);
  border-radius: 3px;
}

/* Projects Cards */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 992px) {
  .projects-grid { grid-template-columns: repeat(3, 1fr); }
}

.project-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-sub);
  border-radius: 6px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: all 0.3s ease;
}

.project-card:hover {
  border-color: var(--cyan);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 240, 255, 0.15);
}

.proj-cat {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--cyan);
  border: 1px solid rgba(0, 240, 255, 0.3);
  padding: 3px 8px;
  border-radius: 2px;
  background: rgba(0, 240, 255, 0.08);
  display: inline-block;
  margin-bottom: 12px;
}

.proj-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 12px;
}

.proj-desc {
  font-size: 13px;
  color: var(--text-sub);
  margin-bottom: 20px;
}

.proj-tags {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 12px;
}

/* Timeline */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.timeline-item {
  background: var(--bg-panel);
  border: 1px solid var(--border-sub);
  border-radius: 6px;
  padding: 24px;
}

.timeline-period {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
  font-weight: 700;
  margin-bottom: 6px;
}

.timeline-company {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-white);
}

.timeline-role {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  margin-bottom: 12px;
}

/* Contact Form */
.contact-form {
  background: var(--bg-panel);
  border: 1px solid var(--border-cyan);
  border-radius: 6px;
  padding: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-sub);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.form-input, .form-textarea {
  width: 100%;
  background: var(--bg-main);
  border: 1px solid var(--border-sub);
  border-radius: 4px;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-white);
}

.form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--cyan);
}

/* Footer */
footer {
  padding: 32px 0;
  border-top: 1px solid var(--border-sub);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

/* Form Notification Messages */
.form-msg-info {
  padding: 14px 18px;
  background: rgba(0, 240, 255, 0.12);
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  border-radius: 4px;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
}

.form-msg-success {
  padding: 16px 20px;
  background: rgba(0, 255, 133, 0.15);
  border: 1px solid var(--green);
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  border-radius: 4px;
  box-shadow: 0 0 20px rgba(0, 255, 133, 0.3);
  animation: pulseSuccess 2s infinite;
}

@keyframes pulseSuccess {
  0%, 100% { box-shadow: 0 0 20px rgba(0, 255, 133, 0.3); }
  50% { box-shadow: 0 0 35px rgba(0, 255, 133, 0.6); }
}

.form-msg-error {
  padding: 14px 18px;
  background: rgba(255, 46, 99, 0.15);
  border: 1px solid var(--rose);
  color: var(--rose);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  border-radius: 4px;
}

/* Floating Cyber Toast Notification */
.cyber-toast {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  z-index: 9999;
  background: #0E1626;
  border: 1px solid var(--green);
  color: var(--text-white);
  padding: 16px 28px;
  border-radius: 6px;
  box-shadow: 0 10px 40px rgba(0, 255, 133, 0.4);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  opacity: 0;
  pointer-events: none;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.cyber-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}