/* ================================================
   BJ Design — Global Stylesheet
   Paleta: #0F172A | #F97316 | #000000 | #FFFFFF
   ================================================ */

:root {
  --navy:          #0F172A;
  --navy-light:    #1E293B;
  --navy-lighter:  #334155;
  --orange:        #F97316;
  --orange-dark:   #EA6C0A;
  --orange-glow:   rgba(249, 115, 22, 0.15);
  --black:         #000000;
  --white:         #FFFFFF;
  --gray-100:      #F1F5F9;
  --gray-200:      #E2E8F0;
  --gray-400:      #94A3B8;
  --gray-600:      #475569;

  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-card: 0 4px 24px rgba(0,0,0,0.3);
  --shadow-orange: 0 0 30px rgba(249,115,22,0.25);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--navy);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ─── Typography ─────────────────────────────────── */
h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); font-weight: 700; line-height: 1.2; }
h3 { font-size: 1.25rem; font-weight: 600; }
p  { color: var(--gray-400); }

.highlight { color: var(--orange); }
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--orange);
  background: var(--orange-glow);
  border: 1px solid rgba(249,115,22,0.3);
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 1rem;
}

/* ─── Layout ─────────────────────────────────────── */
.container {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

section { padding-block: 6rem; }

/* ─── Buttons ─────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--orange);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--orange-dark);
  box-shadow: var(--shadow-orange);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid var(--navy-lighter);
}
.btn-outline:hover {
  border-color: var(--orange);
  color: var(--orange);
  transform: translateY(-2px);
}

/* ─── Header / Navbar ────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: var(--transition);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
}
.navbar-brand .brand-dot { color: var(--orange); }

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.navbar-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-400);
  transition: color var(--transition);
  position: relative;
}
.navbar-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--orange);
  transition: width var(--transition);
}
.navbar-nav a:hover,
.navbar-nav a.active { color: var(--white); }
.navbar-nav a:hover::after,
.navbar-nav a.active::after { width: 100%; }

.navbar-cta { margin-left: 1rem; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── Mobile Menu ────────────────────────────────── */
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0;
  background: var(--navy-light);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 1rem 1.5rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 0.75rem 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-400);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: color var(--transition);
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { color: var(--orange); }

/* ─── Hero ───────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 70px;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 70% 50%, rgba(249,115,22,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 10% 80%, rgba(249,115,22,0.05) 0%, transparent 60%);
  pointer-events: none;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--orange-glow);
  border: 1px solid rgba(249,115,22,0.3);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--orange);
  margin-bottom: 1.5rem;
}
.hero-badge-dot {
  width: 7px;
  height: 7px;
  background: var(--orange);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(1.3); }
}

.hero-title { margin-bottom: 1.5rem; }
.hero-desc  { font-size: 1.1rem; margin-bottom: 2.5rem; max-width: 520px; }

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
}
.stat-label {
  font-size: 0.8rem;
  color: var(--gray-400);
}

/* Hero visual */
.hero-visual {
  display: flex;
  justify-content: center;
  position: relative;
}

.hero-card {
  background: var(--navy-light);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 2rem;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow-card);
  position: relative;
}
.hero-card::before {
  content: '';
  position: absolute;
  top: -1px; left: -1px; right: -1px;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), transparent);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}
.tech-tag {
  background: var(--navy);
  border: 1px solid var(--navy-lighter);
  border-radius: var(--radius-sm);
  padding: 4px 12px;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--gray-400);
  transition: var(--transition);
}
.tech-tag:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.card-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-600);
  margin-bottom: 1rem;
}

.experience-bar {
  margin-top: 1.5rem;
}
.exp-item { margin-bottom: 0.85rem; }
.exp-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  margin-bottom: 4px;
  color: var(--gray-400);
}
.exp-header span:last-child { color: var(--orange); font-weight: 600; }
.bar-bg {
  height: 5px;
  background: var(--navy);
  border-radius: 999px;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--orange-dark), var(--orange));
  border-radius: 999px;
  transform-origin: left;
  animation: barGrow 1.2s ease-out forwards;
  transform: scaleX(0);
}
@keyframes barGrow {
  to { transform: scaleX(1); }
}

/* ─── Services Section ───────────────────────────── */
.services-header { text-align: center; margin-bottom: 4rem; }
.services-header p { max-width: 560px; margin-inline: auto; margin-top: 1rem; font-size: 1.05rem; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: var(--navy-light);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.service-card:hover {
  border-color: rgba(249,115,22,0.2);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}
.service-card:hover::after { transform: scaleX(1); }

.service-icon {
  width: 52px;
  height: 52px;
  background: var(--orange-glow);
  border: 1px solid rgba(249,115,22,0.25);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
}

.service-card h3 { margin-bottom: 0.5rem; color: var(--white); }
.service-card p  { font-size: 0.9rem; line-height: 1.7; }

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1.25rem;
}
.service-tag {
  background: var(--navy);
  border: 1px solid var(--navy-lighter);
  border-radius: 4px;
  padding: 3px 10px;
  font-size: 0.72rem;
  color: var(--gray-400);
}

/* ─── About Section ──────────────────────────────── */
.about { background: var(--navy-light); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about-image-wrap {
  position: relative;
}
.about-avatar {
  width: 100%;
  max-width: 400px;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-lighter) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
  border: 1px solid rgba(255,255,255,0.08);
  position: relative;
  overflow: hidden;
}
.about-avatar::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--orange), transparent);
}

.about-badge {
  position: absolute;
  bottom: -1rem;
  right: -1rem;
  background: var(--orange);
  color: var(--white);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  text-align: center;
  box-shadow: var(--shadow-orange);
}
.about-badge .big { font-size: 2rem; font-weight: 800; display: block; line-height: 1; }
.about-badge .small { font-size: 0.7rem; font-weight: 600; }

.about-content h2 { margin-bottom: 1rem; }
.about-content p  { font-size: 0.95rem; line-height: 1.8; margin-bottom: 1rem; }

.about-list { margin-block: 1.5rem; }
.about-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0.5rem 0;
  font-size: 0.9rem;
  color: var(--gray-400);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.about-list li::before {
  content: '▸';
  color: var(--orange);
  font-size: 0.7rem;
}

/* ─── Portfolio Preview ──────────────────────────── */
.portfolio-preview { text-align: center; }
.portfolio-preview-header { margin-bottom: 3rem; }
.portfolio-preview-header p { max-width: 520px; margin-inline: auto; margin-top: 1rem; }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  text-align: left;
  margin-bottom: 3rem;
}

.project-card {
  background: var(--navy-light);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.project-card:hover {
  border-color: rgba(249,115,22,0.25);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

.project-img {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-lighter) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
  overflow: hidden;
}
.project-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-body { padding: 1.5rem; }
.project-body h3 { color: var(--white); margin-bottom: 0.5rem; }
.project-body p  { font-size: 0.875rem; line-height: 1.7; margin-bottom: 1.25rem; }

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--orange);
  transition: gap var(--transition);
}
.project-link:hover { gap: 10px; }

/* ─── CTA Section ────────────────────────────────── */
.cta-section {
  background: linear-gradient(135deg, var(--navy-light) 0%, var(--navy) 100%);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  text-align: center;
  padding-block: 5rem;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 50%, rgba(249,115,22,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.cta-section h2 { margin-bottom: 1rem; }
.cta-section p  { max-width: 480px; margin-inline: auto; margin-bottom: 2rem; font-size: 1.05rem; }
.cta-actions { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }

/* ─── Portfolio Page ─────────────────────────────── */
.page-hero {
  padding-top: 130px;
  padding-bottom: 4rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.page-hero h1 { margin-bottom: 0.75rem; }
.page-hero p  { font-size: 1.05rem; max-width: 560px; }

.portfolio-section { padding-block: 4rem; }

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

.service-page-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.85fr);
  gap: 2rem;
  align-items: start;
}

.service-panel {
  background: var(--navy-light);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  padding: 2rem;
}

.service-panel h2,
.service-panel h3 { margin-bottom: 1rem; }

.service-panel p,
.service-panel li {
  font-size: 0.95rem;
  line-height: 1.8;
}

.service-panel + .service-panel { margin-top: 1.5rem; }

.service-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-block: 1.25rem;
}

.service-list li {
  display: flex;
  gap: 0.75rem;
  color: var(--gray-400);
}

.service-list li::before {
  content: '▸';
  color: var(--orange);
  flex-shrink: 0;
}

.service-links {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: 1.25rem;
}

.service-links a {
  color: var(--gray-400);
  font-size: 0.9rem;
}

.service-links a:hover { color: var(--orange); }

/* ─── Contact Page ───────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  align-items: start;
}

.contact-info h2 { margin-bottom: 1rem; }
.contact-info p  { font-size: 0.95rem; line-height: 1.8; margin-bottom: 2rem; }

.contact-items { display: flex; flex-direction: column; gap: 1rem; }
.contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 1rem 1.25rem;
  background: var(--navy-light);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
}
.contact-icon {
  width: 40px;
  height: 40px;
  background: var(--orange-glow);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-item-label { font-size: 0.72rem; color: var(--gray-600); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.contact-item-value { font-size: 0.9rem; color: var(--white); font-weight: 500; }

/* Form */
.contact-form-wrap {
  background: var(--navy-light);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}

.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--gray-400);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--navy);
  border: 1.5px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  padding: 0.75rem 1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--gray-600); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(249,115,22,0.1);
}
.form-group select { cursor: pointer; }
.form-group select option { background: var(--navy); }
.form-group textarea { resize: vertical; min-height: 140px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.form-submit { width: 100%; justify-content: center; padding: 0.9rem; font-size: 1rem; }

.form-status {
  display: none;
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  text-align: center;
}
.form-status.success {
  display: block;
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #4ade80;
}
.form-status.error {
  display: block;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
}

/* ─── Footer ─────────────────────────────────────── */
.site-footer {
  background: var(--black);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-block: 3rem 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand { font-size: 1.25rem; font-weight: 800; margin-bottom: 0.75rem; }
.footer-desc { font-size: 0.875rem; line-height: 1.7; max-width: 300px; }

.footer-col h4 {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-600);
  margin-bottom: 1rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col ul a {
  font-size: 0.875rem;
  color: var(--gray-400);
  transition: color var(--transition);
}
.footer-col ul a:hover { color: var(--orange); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-bottom p { font-size: 0.8rem; }

/* ─── Loading skeleton ───────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--navy-light) 25%, var(--navy-lighter) 50%, var(--navy-light) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ─── Scroll animations ──────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Responsive ─────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-grid   { grid-template-columns: 1fr; text-align: center; }
  .hero-desc   { margin-inline: auto; }
  .hero-stats  { justify-content: center; }
  .hero-actions{ justify-content: center; }
  .hero-visual { display: none; }

  .about-grid  { grid-template-columns: 1fr; }
  .about-image-wrap { display: none; }

  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  section { padding-block: 4rem; }

  .navbar-nav,
  .navbar-cta { display: none; }
  .hamburger  { display: flex; }

  .service-page-grid,
  .contact-grid { grid-template-columns: 1fr; }
  .form-row     { grid-template-columns: 1fr; }

  .footer-grid  { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom{ flex-direction: column; text-align: center; }
}