/* ─────────────────────────────────────────────────────────────
   styles.css  —  Terminal-clean portfolio
   Theme: Deep dark + phosphor green accents + cyan secondaries
   Fonts: JetBrains Mono (headers/accents) + DM Sans (body)
───────────────────────────────────────────────────────────── */

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

:root {
  /* Core palette */
  --bg:         #080c0d;
  --bg-1:       #0d1214;
  --bg-2:       #121a1d;
  --bg-3:       #172024;

  /* Accents */
  --green:      #00e87a;
  --green-dim:  rgba(0, 232, 122, 0.12);
  --cyan:       #00c8e8;
  --cyan-dim:   rgba(0, 200, 232, 0.1);
  --amber:      #f0a500;

  /* Text */
  --text:       #d4dfe3;
  --text-muted: #6b838c;
  --text-dim:   #3d5560;

  /* Borders */
  --border:     rgba(0, 200, 232, 0.12);
  --border-hi:  rgba(0, 232, 122, 0.3);

  /* Typography */
  --font-mono:  'JetBrains Mono', 'Fira Code', monospace;
  --font-body:  'DM Sans', 'Inter', sans-serif;

  /* Spacing */
  --max-w:      1140px;
  --section-py: 100px;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

/* Subtle dot-grid background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(0,200,232,0.06) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  z-index: 0;
}

section, nav, footer { position: relative; z-index: 1; }

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── Typography ───────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-mono);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--green);
  background: var(--green-dim);
  padding: 1px 5px;
  border-radius: 3px;
}

/* ── Scrollbar ────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-hi); border-radius: 3px; }

/* ── Utility ──────────────────────────────────────────────── */
.prompt { color: var(--green); font-family: var(--font-mono); }
.cmd    { color: var(--cyan);  font-family: var(--font-mono); }

.tag {
  display: inline-block;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text-muted);
  transition: border-color 0.2s, color 0.2s;
}
.tag:hover { border-color: var(--green); color: var(--green); }

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 20px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  border-radius: 4px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--green);
  color: var(--bg);
  border-color: var(--green);
}
.btn-primary:hover {
  background: transparent;
  color: var(--green);
  box-shadow: 0 0 16px rgba(0,232,122,0.25);
}

.btn-outline {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border);
}
.btn-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 12px rgba(0,200,232,0.15);
}

.btn-accent {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-accent:hover {
  border-color: var(--amber);
  color: var(--amber);
  box-shadow: 0 0 12px rgba(240,165,0,0.15);
}

.btn-sm { padding: 6px 14px; font-size: 0.73rem; }

/* ── Scroll reveal ────────────────────────────────────────── */
.project-card,
.cert-card,
.timeline-item,
.skill-group {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.project-card.revealed,
.cert-card.revealed,
.timeline-item.revealed,
.skill-group.revealed {
  opacity: 1;
  transform: none;
}

/* ── NAVIGATION ───────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 58px;
  background: transparent;
  transition: background 0.3s, border-bottom 0.3s;
}
#navbar.scrolled {
  background: rgba(8, 12, 13, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-w);
  margin: auto;
  height: 100%;
  padding: 0 28px;
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-logo {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--green);
  letter-spacing: 0.05em;
}
.logo-bracket { color: var(--text-dim); }

.nav-links {
  display: flex;
  gap: 32px;
  flex: 1;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  transition: color 0.2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0; right: 0;
  height: 1px;
  background: var(--green);
  transform: scaleX(0);
  transition: transform 0.2s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--green); }
.nav-links a.active::after,
.nav-links a:hover::after { transform: scaleX(1); }

#lang-toggle {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
}
#lang-toggle:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ── SECTION HEADERS ──────────────────────────────────────── */
.section-header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 60px;
}
.section-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--green);
  border: 1px solid var(--green-dim);
  padding: 2px 7px;
  border-radius: 3px;
}
.section-header h2 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  color: var(--text);
}
.section-header h2::before {
  content: '$ ';
  color: var(--green);
  font-size: 0.65em;
}

/* ── HOME ─────────────────────────────────────────────────── */
#home {
  min-height: 100vh;
  padding: 120px 28px var(--section-py);
  max-width: var(--max-w);
  margin: auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 60px;
  align-items: start;
}

/* Typed-in animation for hero text */
.hero-pre {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 14px;
  animation: fadeSlideUp 0.5s ease both;
}

.hero-name {
  font-size: clamp(2.4rem, 6vw, 4rem);
  color: #fff;
  line-height: 1.05;
  margin-bottom: 8px;
  animation: fadeSlideUp 0.5s 0.1s ease both;
}
.hero-surname {
  color: var(--green);
  display: block;
}

.hero-role {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--cyan);
  letter-spacing: 0.05em;
  margin-bottom: 24px;
  animation: fadeSlideUp 0.5s 0.2s ease both;
}

.hero-bio {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 540px;
  margin-bottom: 36px;
  animation: fadeSlideUp 0.5s 0.3s ease both;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  animation: fadeSlideUp 0.5s 0.4s ease both;
}

/* ── Hero right column: photo + terminal ──────────────────── */
.hero-right {
  display: flex;
  flex-direction: column;
  gap: 24px;
  animation: fadeSlideUp 0.5s 0.5s ease both;
}

/* Profile photo */
.hero-photo {
  width: 160px;
  height: 160px;
  border-radius: 8px;
  overflow: hidden;
  border: 2px solid var(--border-hi);
  box-shadow: 0 0 30px rgba(0,232,122,0.08);
  transition: border-color 0.3s, box-shadow 0.3s;
}
.hero-photo:hover {
  border-color: var(--green);
  box-shadow: 0 0 40px rgba(0,232,122,0.15);
}
.hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(20%);
  transition: filter 0.3s;
}
.hero-photo:hover img {
  filter: grayscale(0%);
}

/* ── Terminal status card ──────────────────────────────────── */
.hero-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 0 40px rgba(0,200,232,0.05);
  transition: border-color 0.3s, box-shadow 0.3s;
}
.hero-card:hover {
  border-color: var(--border-hi);
  box-shadow: 0 0 40px rgba(0,232,122,0.08);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 16px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
}
.dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.dot.red    { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green  { background: #27c93f; }

.card-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-left: 6px;
}

.card-body {
  padding: 18px 20px;
}

.term-line {
  display: flex;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 3px 0;
  opacity: 0;
  animation: termReveal 0.3s ease forwards;
}
.term-key {
  color: var(--cyan);
  min-width: 72px;
  text-align: right;
}
.term-sep { color: var(--text-dim); }
.term-val {
  color: var(--text);
  word-break: break-word;
}
.term-highlight {
  color: var(--green);
  font-weight: 700;
}

/* ── RESUME ───────────────────────────────────────────────── */
#resume {
  padding: var(--section-py) 28px;
  max-width: var(--max-w);
  margin: auto;
}

.resume-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-bottom: 70px;
}

.col-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--green);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 28px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

/* Timeline */
.timeline { position: relative; padding-left: 20px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 6px; bottom: 0;
  width: 1px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
}
.tl-dot {
  position: absolute;
  left: -24px; top: 6px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px rgba(0,232,122,0.5);
}

.tl-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 4px;
}
.tl-role {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.9rem;
  color: #fff;
}
.tl-period {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--green);
}
.tl-org {
  display: block;
  font-size: 0.82rem;
  color: var(--cyan);
  margin-bottom: 10px;
}
.tl-bullets {
  padding-left: 0;
  margin-bottom: 12px;
}
.tl-bullets li {
  font-size: 0.88rem;
  color: var(--text-muted);
  padding: 3px 0 3px 16px;
  position: relative;
}
.tl-bullets li::before {
  content: '>';
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 700;
}
.tl-tags { display: flex; flex-wrap: wrap; gap: 5px; }

/* ── Certifications ───────────────────────────────────────── */
.certs-block { margin-bottom: 60px; }
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.cert-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
}
.cert-card:hover {
  border-color: var(--cert-color, var(--green));
  box-shadow: 0 0 20px rgba(0,200,232,0.08);
  transform: translateY(-2px);
}
.cert-icon {
  font-size: 1.6rem;
  color: var(--cert-color, var(--green));
  flex-shrink: 0;
  margin-top: 2px;
}
.cert-info { flex: 1; min-width: 0; }
.cert-name {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 3px;
}
.cert-issuer {
  display: block;
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-bottom: 8px;
}
.cert-skills { display: flex; flex-wrap: wrap; gap: 4px; }

/* ── Skills ───────────────────────────────────────────────── */
.skills-block {}
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.skill-group {
  padding: 18px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color 0.25s;
}
.skill-group:hover { border-color: var(--cyan-dim); }

.skill-group-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--cyan);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.skill-items { display: flex; flex-wrap: wrap; gap: 8px; }
.skill-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: color 0.2s;
}
.skill-item:hover { color: var(--green); }
.skill-item i { font-size: 1rem; color: var(--cyan); }

/* ── PROJECTS ─────────────────────────────────────────────── */
#projects {
  padding: var(--section-py) 28px;
  max-width: var(--max-w);
  margin: auto;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(480px, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
}
.project-card:hover {
  border-color: var(--border-hi);
  box-shadow: 0 0 30px rgba(0,232,122,0.06);
  transform: translateY(-2px);
}

.proj-header { display: flex; flex-direction: column; gap: 4px; }
.proj-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.proj-name {
  font-size: 1.05rem;
  color: #fff;
  letter-spacing: -0.01em;
}
.proj-subtitle {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--cyan);
  letter-spacing: 0.04em;
  margin-top: 2px;
}
.proj-icon-link {
  font-size: 1.1rem;
  color: var(--text-dim);
  transition: color 0.2s;
}
.proj-icon-link:hover { color: var(--green); }

.proj-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
}
.proj-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.proj-footer {
  display: flex;
  gap: 10px;
  padding-top: 4px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

/* ── MODAL ────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(6px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.25s;
}
.modal-overlay.hidden { pointer-events: none; opacity: 0; }
.modal-overlay.visible { opacity: 1; pointer-events: all; }

.modal-box {
  background: var(--bg-1);
  border: 1px solid var(--border-hi);
  border-radius: 10px;
  width: 100%;
  max-width: 720px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 0 60px rgba(0,232,122,0.1);
  transform: translateY(-10px);
  transition: transform 0.25s;
}
.modal-overlay.visible .modal-box { transform: none; }

.modal-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  border-radius: 10px 10px 0 0;
  flex-shrink: 0;
}
.modal-dots { display: flex; gap: 6px; flex-shrink: 0; }
.modal-title-text {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  flex: 1;
  text-align: center;
}
.modal-close {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 1rem;
  transition: color 0.2s;
  flex-shrink: 0;
  padding: 4px;
}
.modal-close:hover { color: var(--text); }

.modal-body {
  padding: 28px 32px;
  overflow-y: auto;
  flex: 1;
}

.notes-content h3 {
  font-size: 1rem;
  color: var(--green);
  margin: 24px 0 10px;
  font-family: var(--font-mono);
}
.notes-content h3:first-child { margin-top: 0; }
.notes-content h4 {
  font-size: 0.88rem;
  color: var(--cyan);
  margin: 16px 0 6px;
}
.notes-content p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  line-height: 1.7;
}
.notes-content strong { color: var(--text); font-weight: 500; }
.notes-content ul {
  padding-left: 0;
  margin-bottom: 10px;
}
.notes-content li {
  font-size: 0.88rem;
  color: var(--text-muted);
  padding: 3px 0 3px 18px;
  position: relative;
}
.notes-content li::before {
  content: '>';
  position: absolute;
  left: 0;
  color: var(--amber);
  font-weight: 700;
}

/* ── FOOTER ───────────────────────────────────────────────── */
#footer {
  padding: 40px 28px;
  max-width: var(--max-w);
  margin: auto;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
#footer p {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
}
.footer-links {
  display: flex;
  gap: 20px;
}
.footer-links a {
  font-size: 1rem;
  color: var(--text-dim);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--green); }

/* ── ANIMATIONS ───────────────────────────────────────────── */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: none; }
}

@keyframes termReveal {
  from { opacity: 0; transform: translateX(-6px); }
  to   { opacity: 1; transform: none; }
}

/* ── TOAST ────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(16px);
  background: var(--bg-2);
  border: 1px solid var(--border-hi);
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 10px 20px;
  border-radius: 5px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  z-index: 300;
  box-shadow: 0 0 20px rgba(0,232,122,0.15);
}
.toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-right {
    flex-direction: row;
    align-items: flex-start;
    flex-wrap: wrap;
  }
  .hero-photo {
    width: 120px;
    height: 120px;
  }
  .hero-card { flex: 1; min-width: 280px; }
  .resume-grid { grid-template-columns: 1fr; gap: 40px; }
  .projects-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  :root { --section-py: 70px; }

  .nav-links { gap: 20px; }
  .nav-inner { padding: 0 18px; gap: 20px; }

  .hero-name { font-size: 2rem; }

  #home { padding: 100px 18px 70px; }
  #resume, #projects { padding: var(--section-py) 18px; }

  .hero-right { flex-direction: column; }
  .hero-photo { width: 100px; height: 100px; }

  .modal-body { padding: 20px; }
  .certs-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 400px) {
  .nav-links { display: none; }
  .skills-grid { grid-template-columns: 1fr; }
}