/* ============================================
   PORTFOLIO — DARK TERMINAL AESTHETIC
   ============================================ */

:root {
  --bg:        #080b0f;
  --bg2:       #0d1117;
  --bg3:       #111820;
  --border:    #1e2d3d;
  --green:     #00ff88;
  --green-dim: #00cc6a;
  --cyan:      #00d4ff;
  --text:      #c9d8e8;
  --text-dim:  #5a7a96;
  --red:       #ff3c5a;
  --font-mono: 'Share Tech Mono', monospace;
  --font-display: 'Syne', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  overflow-x: hidden;
  cursor: crosshair;
}

/* ---- BACKGROUND EFFECTS ---- */
#matrix-bg {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  opacity: 0.04;
  pointer-events: none;
}

.scanline {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.08) 2px,
    rgba(0,0,0,0.08) 4px
  );
  z-index: 1;
  pointer-events: none;
}

.noise {
  position: fixed;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: 0.03;
  z-index: 1;
  pointer-events: none;
  animation: noise-shift 8s steps(2) infinite;
}

@keyframes noise-shift {
  0%   { transform: translate(0, 0); }
  25%  { transform: translate(-2%, -1%); }
  50%  { transform: translate(1%, 2%); }
  75%  { transform: translate(-1%, 1%); }
  100% { transform: translate(0, 0); }
}

/* ---- NAV ---- */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 2.5rem;
  background: rgba(8, 11, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: var(--font-mono);
  color: var(--green);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
}

.cursor-blink {
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}

nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  transition: color 0.2s;
}
nav a:hover { color: var(--green); }

/* ---- SECTIONS SHARED ---- */
section {
  position: relative;
  z-index: 10;
  max-width: 1100px;
  margin: 0 auto;
  padding: 7rem 2.5rem;
}

.section-label {
  font-size: 0.75rem;
  color: var(--green);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 1rem;
  line-height: 1.1;
}

.section-desc {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-bottom: 3rem;
  max-width: 500px;
}

/* ---- HERO ---- */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 6rem;
  max-width: 1100px;
  margin: 0 auto;
  padding-left: 2.5rem;
  padding-right: 2.5rem;
}

.hero-tag {
  font-size: 0.75rem;
  color: var(--green);
  letter-spacing: 0.2em;
  border: 1px solid var(--green);
  display: inline-block;
  padding: 0.3rem 0.8rem;
  margin-bottom: 1.5rem;
  animation: fadeSlideIn 0.6s ease forwards;
  opacity: 0;
}

/* GLITCH EFFECT */
.glitch {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 10vw, 8rem);
  font-weight: 800;
  color: #fff;
  position: relative;
  line-height: 1;
  margin-bottom: 0.6rem;
  animation: fadeSlideIn 0.7s 0.1s ease forwards;
  opacity: 0;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
}

.glitch::before {
  color: var(--cyan);
  animation: glitch-1 3.5s infinite;
  clip-path: polygon(0 20%, 100% 20%, 100% 40%, 0 40%);
}

.glitch::after {
  color: var(--red);
  animation: glitch-2 3.5s infinite;
  clip-path: polygon(0 60%, 100% 60%, 100% 80%, 0 80%);
}

@keyframes glitch-1 {
  0%, 90%, 100% { transform: translate(0); opacity: 0; }
  92% { transform: translate(-3px, 1px); opacity: 0.8; }
  94% { transform: translate(3px, -1px); opacity: 0.8; }
  96% { transform: translate(-2px, 0); opacity: 0.8; }
}

@keyframes glitch-2 {
  0%, 91%, 100% { transform: translate(0); opacity: 0; }
  93% { transform: translate(4px, -2px); opacity: 0.7; }
  95% { transform: translate(-4px, 2px); opacity: 0.7; }
  97% { transform: translate(2px, 1px); opacity: 0.7; }
}

.hero-sub {
  font-size: 1rem;
  color: var(--cyan);
  letter-spacing: 0.1em;
  margin-bottom: 1.2rem;
  animation: fadeSlideIn 0.7s 0.2s ease forwards;
  opacity: 0;
}

.hero-desc {
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.8;
  max-width: 480px;
  margin-bottom: 2.5rem;
  animation: fadeSlideIn 0.7s 0.3s ease forwards;
  opacity: 0;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  animation: fadeSlideIn 0.7s 0.4s ease forwards;
  opacity: 0;
  margin-bottom: 4rem;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  animation: fadeSlideIn 0.7s 0.5s ease forwards;
  opacity: 0;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.stat span {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--green);
}

.stat small {
  font-size: 0.7rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
}

.scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.15em;
  animation: float 2s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ---- BUTTONS ---- */
.btn-primary {
  display: inline-block;
  padding: 0.75rem 1.8rem;
  background: var(--green);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
  clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
}

.btn-primary:hover {
  background: #fff;
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(0, 255, 136, 0.4);
}

.btn-ghost {
  display: inline-block;
  padding: 0.75rem 1.8rem;
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-decoration: none;
  transition: all 0.2s;
}

.btn-ghost:hover {
  border-color: var(--green);
  color: var(--green);
}

/* ---- ABOUT ---- */
#about { border-top: 1px solid var(--border); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about-text p {
  color: var(--text-dim);
  line-height: 1.9;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.skill-group { margin-bottom: 1.5rem; }

.skill-label {
  font-size: 0.7rem;
  color: var(--green);
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 0.6rem;
}

.tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.tags span {
  font-size: 0.75rem;
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--border);
  color: var(--text-dim);
  background: var(--bg2);
  transition: all 0.2s;
}

.tags span:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ---- PROJECTS ---- */
#projects { border-top: 1px solid var(--border); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

/* Skeleton loaders */
.project-skeleton {
  height: 220px;
  background: linear-gradient(90deg, var(--bg2) 25%, var(--bg3) 50%, var(--bg2) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border: 1px solid var(--border);
}

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Project cards (rendered by JS) */
.project-card {
  position: relative;
  border: 1px solid var(--border);
  background: var(--bg2);
  padding: 1.8rem;
  transition: all 0.3s;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  text-decoration: none;
  color: inherit;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeSlideIn 0.5s ease forwards;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px;
  height: 100%;
  background: var(--green);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.3s;
}

.project-card:hover {
  border-color: var(--green);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 255, 136, 0.08);
}

.project-card:hover::before { transform: scaleY(1); }

.project-number {
  font-size: 0.7rem;
  color: var(--green);
  letter-spacing: 0.15em;
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
}

.project-desc {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.7;
  flex: 1;
}

.project-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.project-tags span {
  font-size: 0.65rem;
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--border);
  color: var(--cyan);
  letter-spacing: 0.05em;
}

.project-link {
  font-size: 0.78rem;
  color: var(--green);
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.project-link::after { content: ' →'; }

/* ---- CONTACT ---- */
#contact { border-top: 1px solid var(--border); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: start;
}

.contact-info p {
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.9;
  margin-bottom: 2rem;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.contact-link {
  font-size: 0.85rem;
  color: var(--text-dim);
  text-decoration: none;
  border-left: 2px solid var(--border);
  padding-left: 1rem;
  transition: all 0.2s;
}

.contact-link:hover {
  color: var(--green);
  border-color: var(--green);
}

/* Form */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.2rem;
}

label {
  font-size: 0.72rem;
  color: var(--green);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

input, textarea {
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  padding: 0.75rem 1rem;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
  resize: vertical;
}

input:focus, textarea:focus { border-color: var(--green); }
input::placeholder, textarea::placeholder { color: var(--text-dim); opacity: 0.5; }

/* ---- MESSAGES ---- */
.success-msg {
  font-size: 0.82rem;
  color: var(--green);
  margin-top: 0.8rem;
  padding: 0.6rem 1rem;
  border: 1px solid var(--green);
  background: rgba(0, 255, 136, 0.05);
}

.error-msg {
  font-size: 0.82rem;
  color: var(--red);
  margin-top: 0.8rem;
}

.error-msg button {
  background: none;
  border: none;
  color: var(--cyan);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: inherit;
  text-decoration: underline;
}

.hidden { display: none !important; }

/* ---- FOOTER ---- */
footer {
  position: relative;
  z-index: 10;
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 2.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
}

/* ---- ANIMATIONS ---- */
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  nav { padding: 1rem 1.5rem; }
  nav ul { gap: 1.2rem; }

  section { padding: 5rem 1.5rem; }

  .about-grid,
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }

  .hero-stats { gap: 1.5rem; }

  footer { flex-direction: column; gap: 0.5rem; text-align: center; }
}