/* ===== CSS переменные ===== */
:root {
  --bg-primary: #050505;
  --bg-secondary: rgba(20, 20, 20, 0.8);
  --bg-tertiary: rgba(255, 255, 255, 0.02);
  --text-primary: #ffffff;
  --text-secondary: #aaa;
  --text-tertiary: #666;
  --accent-primary: #3b82f6;
  --accent-secondary: #8b5cf6;
  --border-color: rgba(255, 255, 255, 0.05);
  --shadow-color: rgba(0, 0, 0, 0.5);
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== сброс и переменные ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
  scroll-behavior: smooth;
}

/* mesh gradient фон */
.mesh-gradient {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 10% 20%, rgba(59, 130, 246, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(147, 51, 234, 0.1) 0%, transparent 40%);
  z-index: -1;
}

/* ===== PRELOADER ===== */
.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #050505;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.6s ease, visibility 0.6s ease;
  opacity: 1;
  visibility: visible;
}
.preloader.hidden {
  opacity: 0;
  visibility: hidden;
}
.preloader-content {
  text-align: center;
}
.preloader-logo {
  width: 150px;
  height: 150px;
  margin: 0 auto;
  animation: pulseGlow 1.8s infinite ease-in-out;
  filter: drop-shadow(0 0 20px #3b82f6);
}
.preloader-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
  background: rgba(255,255,255,0.03);
  border: 4px solid rgba(255,255,255,0.05);
}
.preloader-text {
  margin-top: 1rem;
  font-size: 1.3rem;
  font-weight: 300;
  letter-spacing: 2px;
  color: #aaa;
  text-transform: uppercase;
}
.preloader-subtext {
  font-size: 0.9rem;
  color: #666;
  margin-top: 0.3rem;
  letter-spacing: 1px;
}
@keyframes pulseGlow {
  0%, 100% { transform: scale(1); opacity: 0.9; filter: drop-shadow(0 0 10px #3b82f6); }
  50% { transform: scale(1.1); opacity: 1; filter: drop-shadow(0 0 30px #3b82f6); }
}

/* ===== боковое меню (расширенное) ===== */
.side-menu {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  left: 20px;
  width: 70px;
  background: rgba(20, 20, 20, 0.7);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 40px;
  padding: 1.2rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  z-index: 100;
  transition: 0.3s ease;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  max-height: 80vh;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: #3b82f6 #1a1a1a;
}
.side-menu::-webkit-scrollbar {
  width: 5px;
}
.side-menu::-webkit-scrollbar-track {
  background: #1a1a1a;
  border-radius: 10px;
}
.side-menu::-webkit-scrollbar-thumb {
  background: #3b82f6;
  border-radius: 10px;
}
.side-menu:hover {
  border-color: rgba(59,130,246,0.3);
  background: rgba(25,25,25,0.8);
}
.menu-item {
  color: #aaa;
  font-size: 1.5rem;
  transition: 0.2s;
  cursor: pointer;
  position: relative;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
}
.menu-item:hover {
  color: #3b82f6;
  transform: scale(1.15);
}
.menu-item[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 60px;
  top: 50%;
  transform: translateY(-50%);
  background: #1a1a1a;
  padding: 0.4rem 1rem;
  border-radius: 30px;
  font-size: 0.8rem;
  white-space: nowrap;
  border: 1px solid #3b82f6;
  color: #fff;
  letter-spacing: 1px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
  z-index: 200;
}
/* адаптация для мобильных: меню горизонтальное внизу */
@media (max-width: 900px) {
  .side-menu {
    top: auto;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    flex-direction: row;
    width: auto;
    max-width: 95vw;
    padding: 0.8rem 1.2rem;
    gap: 1.2rem;
    border-radius: 50px;
    backdrop-filter: blur(20px);
    overflow-x: auto;
    white-space: nowrap;
    max-height: none;
    justify-content: flex-start;
  }
  .menu-item[data-tooltip]:hover::after {
    left: 50%;
    top: -35px;
    transform: translateX(-50%);
  }
}
/* адаптация для совсем маленьких */
@media (max-width: 500px) {
  .side-menu {
    gap: 1rem;
    padding: 0.6rem 1rem;
  }
  .menu-item {
    font-size: 1.2rem;
  }
}

/* основной контейнер сдвинут, чтобы не перекрываться меню */
.main-wrapper {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: 1.5rem 1.5rem 1.5rem 100px;
  transition: padding 0.3s;
}
@media (max-width: 900px) {
  .main-wrapper {
    padding: 1.5rem 1.5rem 80px 1.5rem;
  }
}
.container {
  max-width: 1200px;
  width: 100%;
}

/* hero-карточка */
.hero-card {
  background: linear-gradient(145deg, rgba(20,20,20,0.8), rgba(5,5,5,0.8));
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 40px;
  padding: 2.5rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.hero-card .glow {
  position: absolute;
  top: -6rem;
  left: -6rem;
  width: 20rem;
  height: 20rem;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 50%;
  filter: blur(100px);
}

.avatar {
  width: 120px;
  height: 120px;
  margin: 0 auto 1.8rem;
  background: rgba(255,255,255,0.03);
  border: 4px solid rgba(255,255,255,0.05);
  border-radius: 50%;
  overflow: hidden;
  box-shadow: 0 20px 30px -10px rgba(0,0,0,0.5);
  animation: float 6s ease-in-out infinite;
}
.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

h1 {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(to bottom, #fff, #aaa);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.5rem;
  line-height: 1.1;
}

.subhead {
  font-size: 1.2rem;
  color: #aaa;
  font-weight: 300;
  margin-bottom: 2rem;
}

.button-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.8rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 2rem;
  border-radius: 1rem;
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition-normal);
  text-decoration: none;
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  backdrop-filter: blur(12px);
  color: var(--text-primary);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left 0.6s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), #1d4ed8);
  border: none;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #3b82f6, var(--accent-primary));
  box-shadow: 0 8px 25px rgba(59,130,246,0.5);
  transform: translateY(-3px) scale(1.02);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.08);
  border-color: var(--accent-primary);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(59,130,246,0.2);
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.bento-item {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 24px;
  padding: 1.5rem;
  transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  text-decoration: none;
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.bento-item:hover {
  border-color: rgba(59,130,246,0.4);
  background: rgba(255,255,255,0.04);
  transform: scale(1.02);
}

.bento-icon {
  font-size: 2.2rem;
  margin-bottom: 0.8rem;
  color: #3b82f6;
}

.bento-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: #666;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.bento-value {
  font-size: 1.2rem;
  font-weight: 600;
  word-break: break-word;
}

.skills-container {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 24px;
  padding: 1.8rem;
  margin-top: 2rem;
}

.skills-title {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.skill-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.skill-name {
  min-width: 100px;
  font-weight: 500;
  color: #ccc;
}

.skill-bar-bg {
  flex: 1;
  height: 8px;
  background: rgba(255,255,255,0.08);
  border-radius: 20px;
  overflow: hidden;
}

.skill-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #3b82f6, #8b5cf6);
  border-radius: 20px;
  width: 0%;
  box-shadow: 0 0 10px #3b82f6;
  transition: width 1.5s ease-out;
}

.skill-percent {
  min-width: 45px;
  text-align: right;
  color: #aaa;
  font-weight: 300;
}

/* заголовок проектов с кнопкой обновления */
.projects-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
}
.projects-header-left {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.refresh-btn {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  color: #aaa;
  padding: 0.6rem 1.2rem;
  border-radius: 40px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: 0.2s;
  display: flex;
  align-items: center;
  gap: 8px;
}
.refresh-btn:hover {
  background: rgba(59,130,246,0.2);
  border-color: #3b82f6;
  color: white;
}
.refresh-btn i {
  font-size: 1rem;
}

.repo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.repo-card {
  background: rgba(20,20,20,0.6);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 20px;
  padding: 1.3rem;
  backdrop-filter: blur(10px);
  transition: 0.2s;
  border-left: 4px solid #3b82f6;
}

.repo-card:hover {
  background: rgba(30,30,30,0.8);
  border-color: rgba(59,130,246,0.4);
  transform: translateY(-4px);
}

.repo-name {
  font-weight: 700;
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.repo-name a {
  color: white;
  text-decoration: none;
}

.repo-name a:hover {
  color: #3b82f6;
}

.repo-desc {
  color: #999;
  font-size: 0.9rem;
  margin-bottom: 0.8rem;
  line-height: 1.4;
}

.repo-meta {
  display: flex;
  gap: 1.2rem;
  font-size: 0.85rem;
  color: #777;
}

.repo-meta i {
  margin-right: 0.2rem;
}

.status-message {
  background: rgba(255,255,255,0.03);
  border-radius: 20px;
  padding: 1.5rem;
  text-align: center;
  color: #aaa;
}

.footer {
  margin-top: 3rem;
  text-align: center;
  color: #444;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3em;
}

/* ===== Переключатель темы ===== */
.theme-toggle {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-normal);
  color: var(--text-secondary);
}
.theme-toggle:hover {
  background: rgba(59,130,246,0.2);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: scale(1.1);
}

/* Светлая тема */
body.light-theme {
  --bg-primary: #f8fafc;
  --bg-secondary: rgba(255, 255, 255, 0.8);
  --bg-tertiary: rgba(0, 0, 0, 0.02);
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-tertiary: #94a3b8;
  --border-color: rgba(0, 0, 0, 0.05);
  --shadow-color: rgba(0, 0, 0, 0.1);
}

body.light-theme .mesh-gradient {
  background: 
    radial-gradient(circle at 10% 20%, rgba(59, 130, 246, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(147, 51, 234, 0.05) 0%, transparent 40%);
}

body.light-theme .hero-card {
  background: linear-gradient(145deg, rgba(255,255,255,0.9), rgba(248,250,252,0.9));
  border: 1px solid rgba(0,0,0,0.05);
}

body.light-theme .side-menu {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(0,0,0,0.05);
}

body.light-theme .menu-item[data-tooltip]:hover::after {
  background: #f8fafc;
  border: 1px solid var(--accent-primary);
  color: var(--text-primary);
}

@media (max-width: 600px) {
  h1 { font-size: 2.5rem; }
  .avatar { width: 90px; height: 90px; }
  .btn { padding: 0.8rem 1.5rem; }
  .preloader-logo { width: 100px; height: 100px; }
}