:root {
  /* Base Palette - Dark & Minimalist */
  --bg: #0f1115;
  --panel: #141821;
  --panel-2: #171c26;
  --text: #e7ecf3;
  --muted: #9aa7bd;
  --accent: #7c9cff;
  --accent-hover: #5a80f0;
  --accent-2: #7ff0c6;
  --ring: #27324a;
  
  /* Legacy/Bootstrap Mappings */
  --primary: var(--accent);
  --dark: var(--bg);
  --darker: #090a0d;
  --light: var(--text);
  --silver: rgba(231, 236, 243, 0.1);
}

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

html, body {
  width: 100%;
  overflow-x: hidden;
  background: var(--bg);
  font-family: 'Poppins', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  scroll-behavior: smooth;
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: var(--accent);
  transition: color 0.3s ease;
}

a:hover {
  color: var(--accent-hover);
}

/* =========================================
   LOADER STYLES (Preserved)
   ========================================= */
#loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10000;
}

.w-container {
  position: relative;
  width: 340px;
  height: 200px;
  transform-origin: center;
}

.w-line {
  position: absolute;
  width: 8px;
  background: var(--accent);
  border-radius: 4px;
  transform-origin: top;
  animation-fill-mode: forwards;
  height: 0;
}

.w-line1 {
  left: 40px;
  top: 20px;
  transform: rotate(-25deg);
  animation: growLine 0.8s cubic-bezier(0.68, -0.55, 0.27, 1.55) 0.2s forwards;
}

.w-line2 {
  left: 172px;
  top: 20px;
  transform: rotate(25deg);
  animation: growLine 0.8s cubic-bezier(0.68, -0.55, 0.27, 1.55) 0.6s forwards;
}

.w-line3 {
  left: 172px;
  top: 20px;
  transform: rotate(-25deg);
  animation: growLine 0.8s cubic-bezier(0.68, -0.55, 0.27, 1.55) 1.0s forwards;
}

.w-line4 {
  left: 303px;
  top: 20px;
  transform: rotate(25deg);
  animation: growLine 0.8s cubic-bezier(0.68, -0.55, 0.27, 1.55) 1.4s forwards;
}

@keyframes growLine {
  0% { height: 0; }
  80% { height: 160px; }
  90% { height: 150px; }
  100% { height: 160px; }
}

.horizontal-line {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: linear-gradient(to right, transparent, var(--accent), transparent);
  border-radius: 2px;
  animation: expandLine 1s ease 2.2s forwards;
}

@keyframes expandLine {
  0% { width: 0; }
  100% { width: 320px; }
}

/* =========================================
   MAIN LAYOUT & ANIMATIONS
   ========================================= */
#main-content {
  opacity: 0;
  transition: opacity 1s ease;
}

#main-content.show {
  opacity: 1;
}

/* Navbar */
.navbar {
  background: rgba(15, 17, 21, 0.9) !important;
  backdrop-filter: blur(12px);
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--ring);
  height: auto;
  min-height: 60px;
}

.navbar-brand {
  font-weight: 700;
  letter-spacing: 1px;
  font-size: 1.4rem;
  color: var(--text) !important;
}

.nav-link {
  color: var(--muted) !important;
  font-weight: 500;
  font-size: 0.95rem;
  margin: 0 5px;
  transition: color 0.3s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent) !important;
}

.navbar-toggler {
  border: none;
  padding: 0;
}

.navbar-toggler:focus {
  box-shadow: none;
}

.navbar-toggler-icon {
  background-image: none;
  width: 24px;
  height: 2px;
  background: var(--text);
  position: relative;
  transition: all 0.3s;
}

.navbar-toggler-icon::before,
.navbar-toggler-icon::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: all 0.3s;
}

.navbar-toggler-icon::before { top: -8px; }
.navbar-toggler-icon::after { top: 8px; }

/* Language Switcher */
.lang-switch {
  display: flex;
  gap: 8px;
  margin-left: 20px;
  align-items: center;
}

.lang-btn {
  background: transparent;
  border: 1px solid var(--ring);
  color: var(--muted);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
}

.lang-btn:hover {
  color: var(--text);
  border-color: var(--muted);
}

.lang-btn.active {
  background: var(--panel-2);
  color: var(--accent);
  border-color: var(--accent);
  font-weight: 600;
}

/* =========================================
   HERO SECTION
   ========================================= */
#hero {
  min-height: 100vh;
  /* Dark minimalist gradient */
  background: radial-gradient(circle at 50% 50%, #1b202b 0%, var(--bg) 70%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  flex-direction: column;
  padding: 100px 20px 60px;
  text-align: center;
}

#particles-js {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  opacity: 0.4;
}

.hero-content {
  z-index: 2;
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

/* Static W after animation */
.final-w {
  position: relative;
  width: 300px;
  height: 200px;
  margin: 0 auto 40px;
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.static-w-line {
  position: absolute;
  width: 8px;
  background: var(--accent);
  border-radius: 4px;
}

.static-w-line1 { left: 32px; top: 60px; height: 160px; transform: rotate(-25deg); }
.static-w-line2 { left: 132px; top: 60px; height: 160px; transform: rotate(25deg); }
.static-w-line3 { left: 162px; top: 60px; height: 160px; transform: rotate(-25deg); }
.static-w-line4 { left: 263px; top: 60px; height: 160px; transform: rotate(25deg); }

.static-horizontal-line {
  position: absolute;
  bottom: -30px;
  left: 50%;
  transform: translateX(-50%);
  width: 320px;
  height: 3px;
  background: linear-gradient(to right, transparent, var(--accent), transparent);
  border-radius: 2px;
}

.brand-title {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
  letter-spacing: -2px;
  opacity: 0;
  animation: fadeIn 1s ease 0.5s forwards;
}

.brand-subtitle {
  font-size: clamp(1rem, 3vw, 1.5rem);
  color: var(--accent);
  margin-bottom: 2rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: 0;
  animation: fadeIn 1s ease 0.8s forwards;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0;
  animation: fadeIn 1s ease 1.1s forwards;
}

.hero-actions {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeIn 1s ease 1.3s forwards;
}

@keyframes fadeIn {
  to { opacity: 1; transform: translateY(0); }
}

/* Buttons */
.btn-custom {
  padding: 12px 28px;
  border-radius: 50px;
  font-weight: 600;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-2px);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--ring);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(124, 156, 255, 0.05);
}

.scroll-arrow {
  background: none;
  border: 2px solid var(--muted);
  border-radius: 50%;
  color: var(--muted);
  width: 50px;
  height: 50px;
  cursor: pointer;
  opacity: 0;
  animation: fadeIn 1s ease 1.5s forwards, bounce 2s infinite 2s;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  margin-top: 3rem;
}

.scroll-arrow:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(124, 156, 255, 0.05);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {transform: translateY(0);}
  40% {transform: translateY(-10px);}
  60% {transform: translateY(-5px);}
}

/* =========================================
   COMMON SECTIONS
   ========================================= */
section {
  padding: 80px 20px;
  position: relative;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
  color: var(--text);
}

.section-subtitle {
  text-align: center;
  color: var(--muted);
  margin-bottom: 4rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* About / Skills Cards */
.tech-stack {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 20px;
}

.tech-badge {
  background: var(--panel-2);
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--ring);
  color: var(--muted);
  font-size: 0.9rem;
  transition: all 0.3s;
}

.tech-badge:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Offer / Process Tiles */
.offer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  max-width: 1100px;
  margin: 0 auto;
}

.offer-card {
  background: var(--panel);
  border: 1px solid var(--ring);
  border-radius: 16px;
  padding: 30px;
  transition: transform 0.3s, border-color 0.3s;
}

.offer-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
}

.offer-icon {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 20px;
}

.offer-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--text);
}

.offer-card p {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* Projects Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.project-card {
  background: var(--panel);
  border: 1px solid var(--ring);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  border-color: var(--accent);
  box-shadow: 0 10px 40px rgba(0,0,0,0.2);
  transform: translateY(-5px);
}

.project-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 1px solid var(--ring);
}

.project-body {
  padding: 24px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.project-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text);
}

.project-desc {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.tag-sm {
  font-size: 0.75rem;
  padding: 4px 8px;
  background: var(--panel-2);
  border-radius: 4px;
  color: var(--muted);
  border: 1px solid var(--ring);
}

.project-footer {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.btn-link {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.btn-link:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* Modal Customization */
.modal-content {
  background: var(--panel);
  border: 1px solid var(--ring);
  color: var(--text);
}

.modal-header, .modal-footer {
  border-color: var(--ring);
}

.modal-title {
  color: var(--text);
}

.btn-close {
  filter: invert(1) grayscale(100%) brightness(200%);
}

/* Contact / About Styles Merged */
.contact-wrapper {
  max-width: 800px;
  margin: 0 auto;
  background: var(--panel);
  border: 1px solid var(--ring);
  border-radius: 20px;
  padding: 40px;
  text-align: center;
}

/* NEW AVATAR STYLE - SQUARE / PANEL STYLE */
.contact-avatar {
  width: 100%;
  max-width: 350px;
  margin: 0 auto 30px;
  padding: 10px;
  background: var(--panel-2);
  border: 1px solid var(--ring);
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  transform: rotate(-2deg);
  transition: transform 0.3s ease;
}

.contact-avatar:hover {
  transform: rotate(0deg);
  border-color: var(--accent);
}

.contact-avatar img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  object-fit: cover;
}

.contact-methods {
  display: grid;
  gap: 20px;
  margin: 30px 0;
}

.contact-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 1.1rem;
  color: var(--text);
}

.contact-item i {
  color: var(--accent);
}

.contact-grid-mini {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.contact-card-mini {
  background: var(--panel-2);
  border: 1px solid var(--ring);
  padding: 15px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all 0.3s;
}

.contact-card-mini:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.contact-card-mini i {
  font-size: 1.2rem;
  color: var(--accent);
}

/* Footer */
footer {
  background: var(--panel-2);
  border-top: 1px solid var(--ring);
  padding: 30px 0;
  text-align: center;
  margin-top: auto;
}

.footer-text {
  color: var(--muted);
  font-size: 0.9rem;
}

/* Utilities */
.text-accent { color: var(--accent) !important; }
.bg-dark { background-color: var(--bg) !important; }
.mt-100 { margin-top: 100px; }

/* Responsive adjustments */
@media (max-width: 768px) {
  .brand-title {
    font-size: 3rem;
  }
  
  .w-container, .final-w {
    transform: scale(0.75);
  }
  
  .static-horizontal-line {
    width: 250px;
  }
  
  section {
    padding: 60px 20px;
  }
  
  .contact-wrapper {
    padding: 20px;
  }
  
  .contact-avatar {
    max-width: 280px;
  }
}
/* About Preview Section Styles */
.skills-card-preview {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--ring);
}

.skills-card-preview:hover {
  transform: translateY(-5px);
  border-color: var(--accent) !important;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.about-text-block p {
  color: var(--muted);
  line-height: 1.7;
  font-size: 1rem;
}

/* Dostosowanie badge'y, żeby były nieco mniejsze na podglądzie */
#about-preview .tech-badge {
    font-size: 0.8rem;
    padding: 6px 12px;
}