@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
  --primary-color: #ff69b4; /* Hot Pink */
  --secondary-color: #20b2aa; /* Light Sea Green */
  --accent-color: #ff8c00; /* Dark Orange for accents */
  --bg-color: #121212; /* Темнее для лучшего контраста */
  --text-color: #e0e0e0; /* Чуть мягче белого */
  --card-bg: rgba(40, 40, 40, 0.7); /* Полупрозрачный темный фон для карточек */
  --card-border: rgba(255, 105, 180, 0.2);
  --hover-color: #ff1493; /* Deep Pink */
  --shadow-color: rgba(255, 105, 180, 0.3);
  --font-primary: "Poppins", "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  --border-radius-main: 15px;
  --border-radius-small: 8px;
  --avatar-border-color: #ffb6c1;
}

[data-theme="light"] {
  --primary-color: #d476ff; /* Более яркий для светлой темы */
  --secondary-color: #00ced1; /* Dark Turquoise */
  --accent-color: #ff7f50; /* Coral */
  --bg-color: #f4f4f8; /* Очень светлый серый */
  --text-color: #333333;
  --card-bg: rgba(255, 255, 255, 0.8);
  --card-border: rgba(212, 118, 255, 0.3);
  --hover-color: #c700ff;
  --shadow-color: rgba(212, 118, 255, 0.3);
}


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

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: var(--font-primary), monospace;
  line-height: 1.6;
  overflow-x: hidden;
  user-select: none;
  transition: background-color 0.3s ease, color 0.3s ease;
}

nav {
  position: fixed;
  top: 0;
  left:0;
  width: 100%;
  padding: 1rem 2rem;
  background: rgba(20, 20, 20, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  transition: background-color 0.3s ease;
}
[data-theme="light"] nav {
    background: rgba(240, 240, 240, 0.8);
    border-bottom: 1px solid rgba(0,0,0,0.1);
}


.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
  transition: color 0.3s ease;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--primary-color);
}
.nav-links a:hover::after {
  width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#theme-toggle {
  background: none;
  border: none;
  color: var(--text-color);
  cursor: pointer;
  font-size: 1.5rem;
  transition: color 0.3s ease, transform 0.3s ease;
}
#theme-toggle:hover {
    color: var(--primary-color);
    transform: rotate(15deg);
}

.mobile-menu-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    font-size: 1.5rem;
    display: none;
    z-index: 1005;
    transition: color 0.3s ease;
}
.mobile-menu-toggle:hover {
    color: var(--primary-color);
}

.mobile-nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    max-width: 300px;
    height: 100vh;
    background-color: rgba(30, 30, 30, 0.95);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    transition: right 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    padding-top: 60px;
}

[data-theme="light"] .mobile-nav-links {
    background-color: rgba(245, 245, 245, 0.95);
}

.mobile-nav-links.active {
    right: 0;
}

.mobile-nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-small);
    transition: background-color 0.3s ease, color 0.3s ease;
}
.mobile-nav-links a:hover {
    background-color: var(--primary-color);
    color: var(--bg-color);
}


.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem;
  padding-top: 100px;
}

.hero {
  min-height: calc(100vh - 100px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
  padding-top: 2rem;
  padding-left: 1rem;
  padding-right: 1rem;
  padding-bottom: 5rem;
  box-sizing: border-box;
}

@media (max-width: 480px) {
  .hero {
    padding-bottom: 7rem;

  }

  .scroll-down-indicator {
    bottom: 1.5rem;
    font-size: 1.8rem;
  }
}

@media (max-width: 360px) {
    .hero {
        padding-bottom: 8rem;
    }
}

#profile-image {
  width: 300px;
  height: 300px;
  object-fit: cover;
  border-radius: 15%;
  border: 4px solid var(--avatar-border-color);
  box-shadow: 0 0 25px var(--avatar-border-color);
  margin-bottom: 2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
#profile-image:hover {
    transform: scale(1.05);
    box-shadow: 0 0 35px var(--avatar-border-color);
}


.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  margin-bottom: 1rem;
  background: linear-gradient(
    45deg,
    var(--primary-color),
    var(--secondary-color)
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientBG 5s ease infinite;
  background-size: 200% 200%;
}

@keyframes gradientBG {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}


.typing-text {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  margin-bottom: 2.5rem;
  min-height: 3rem;
  color: var(--text-color);
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  align-items: center;
  margin-top: 2rem;
  padding: 0 1rem;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.6em 1.3em;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-color);
  text-decoration: none;
  border: 2px solid var(--primary-color);
  border-radius: 50px;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  white-space: nowrap;
  text-align: center;
}

.social-link i {
    font-size: 1.1rem;
}

.social-link:hover {
  background-color: var(--primary-color);
  color: #fff;
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 8px 20px var(--shadow-color);
}

[data-theme="light"] .social-link:hover {
    color: #fff;
}

@media (max-width: 480px) {
  .social-links {
    gap: 0.6rem;
    padding: 0 1rem;
  }

  .social-link {
    font-size: 0.85rem;
    padding: 0.7em 1em;
    flex-basis: calc(50% - 0.6rem);
  }
}

@media (max-width: 380px) {
  .social-links {
    gap: 0.75rem;
  }
  .social-link {
    font-size: 0.8rem;
    flex-basis: calc(100% - 0.5rem);
  }
}


.scroll-down-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2rem;
    color: var(--primary-color);
    animation: bounce 2s infinite;
    opacity: 0.7;
}
.scroll-down-indicator:hover {
    opacity: 1;
}

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

/* About Section */
.about-content {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    align-items: center;
    text-align: left;
}
.about-text {
    flex: 1;
    min-width: 300px;
}
.about-text p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: var(--text-color);
    opacity: 0.9;
}
.about-image {
    flex: 1;
    min-width: 300px;
    max-width: 400px;
    margin: 0 auto;
}
.about-image img {
    width: 100%;
    border-radius: var(--border-radius-main);
    box-shadow: var(--avatar-border-color);
}
[data-theme="dark"] .about-image img {
    box-shadow: 0 0px 15px var(--avatar-border-color);
}

/*.about-image img {*/
/*    clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%); !* шестиугольник *!*/
/*}*/


.section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--card-border);
}
.section:last-of-type {
    border-bottom: none;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 3rem;
  text-align: center;
  color: var(--primary-color);
  font-weight: 700;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
}

.project-card {
  background: var(--card-bg);
  border-radius: var(--border-radius-main);
  border: 1px solid var(--card-border);
  transition: background-color 0.4s ease, transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.4s ease, color 0.4s ease;
  cursor: default;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 28px var(--shadow-color);
}

.project-thumbnail {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  border-top-left-radius: var(--border-radius-main);
  border-top-right-radius: var(--border-radius-main);
  transition: transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.project-card:hover .project-thumbnail {
  transform: scale(1.07);
}

.project-card-main-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-card-main-content h3 {
  color: var(--primary-color);
  margin-bottom: 0.75rem;
  font-size: 1.4rem;
}

.project-card-main-content h3 a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}
.project-card-main-content h3 a:hover {
    color: var(--hover-color);
}

.project-card-main-content p {
    margin-bottom: 1.25rem;
    flex-grow: 1;
    color: var(--text-color);
    opacity: 0.85;
    font-size: 0.95rem;
    line-height: 1.6;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 1.5rem;
}
.project-tags span {
    background-color: var(--card-border);
    color: var(--primary-color);
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

.project-links {
    margin-top: auto;
}
.project-link-btn {
    display: block;
    width: 100%;
    text-align: center;
    padding: 0.7rem 1.2rem;
    background-color: var(--primary-color);
    color: #fff;
    text-decoration: none;
    border-radius: var(--border-radius-small);
    font-weight: 500;
    font-size: 0.9rem;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
}
.project-link-btn:hover {
    background-color: var(--hover-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(var(--primary-rgb, 255, 105, 180), 0.35);
    color: var(--text-color);
}
.project-link-btn i {
    margin-left: 0.5rem;
    transition: transform 0.25s ease;
}
.project-link-btn:hover i {
    transform: translateX(2px);
}

.skills-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  justify-content: center;
}

.skill-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 0.8rem 1.5rem;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-color);

  position: relative;
  overflow: hidden;

  transition: background-color 0.4s ease, transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.4s ease;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
  cursor: pointer;
}

[data-theme="dark"] .skill-tag {
    box-shadow: 0 3px 8px rgba(0,0,0,0.2);
}

.skill-icon {
  width: 24px;
  height: 24px;
  transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.27, 1.55), opacity 0.3s ease; /* "Пружна" анімація */
  opacity: 1;
  transform: scale(1) rotate(0deg);
}

.skill-text {
  display: inline-block;
  transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.27, 1.55), opacity 0.3s ease;
  opacity: 1;
  transform: translateX(0);
}

.skill-tag::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background-color: var(--primary-color);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), height 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), border-radius 0.4s ease 0.2s;
  z-index: 0;
}

.skill-tag::after {
  content: attr(data-hover-text);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  opacity: 0;
  color: #fff;
  font-weight: 500;
  font-size: 1rem;
  transition: opacity 0.3s ease 0.2s, transform 0.4s cubic-bezier(0.68, -0.55, 0.27, 1.55) 0.1s;
  z-index: 1;
  white-space: nowrap;
  text-align: center;
  width: calc(100% - 1.6rem);
}


.skill-tag:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 8px 18px var(--shadow-color);
  color: #fff;
}

.skill-tag:hover::before {
  width: 150%;
  height: 150%;
  border-radius: var(--border-radius-main);
}

.skill-tag:hover .skill-icon {
  transform: scale(0) rotate(90deg);
  opacity: 0;
}

.skill-tag:hover .skill-text {
  transform: translateX(20px) scale(0.8);
  opacity: 0;
}

.skill-tag:hover::after {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

footer {
  text-align: center;
  padding: 3rem 2rem;
  background: var(--bg-color);
  border-top: 1px solid var(--card-border);
  margin-top: 4rem;
  color: var(--text-color);
  opacity: 0.8;
}
.footer-content p {
    margin-bottom: 1rem;
}
.footer-social-links a {
    color: var(--text-color);
    font-size: 1.5rem;
    margin: 0 0.75rem;
    transition: color 0.3s ease, transform 0.3s ease;
}
.footer-social-links a:hover {
    color: var(--primary-color);
    transform: scale(1.2);
}

/* Loader */
.loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-color);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10001;
  transition: opacity 0.5s ease, visibility 0.5s ease;
  visibility: visible;
}

.loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader::after {
  content: "";
  width: 60px;
  height: 60px;
  border: 6px solid var(--primary-color);
  border-top-color: transparent;
  border-radius: 50%;
  animation: loading 0.8s linear infinite;
}

@keyframes loading {
  to {
    transform: rotate(360deg);
  }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-color, var(--bg-color));
  border-radius: 5px;
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(
    45deg,
    var(--primary-color),
    var(--secondary-color)
  );
  border-radius: 5px;
  transition: background 0.3s ease;
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(
    45deg,
    var(--hover-color),
    var(--secondary-color)
  );
}
/* Firefox scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--primary-color) var(--bg-color, var(--bg-color));
}

html {
  scroll-behavior: smooth;
}

/* Back to Top Button */
#back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 5px 15px var(--shadow-color);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, background-color 0.3s ease;
    z-index: 998;
}
#back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
#back-to-top:hover {
    background-color: var(--hover-color);
    transform: translateY(-3px) scale(1.1);
}

a {
  text-decoration: none;
  color: var(--primary-color);
  margin-bottom: 1rem;
  transition: color 0.3s ease;
}
a:hover {
    color: var(--hover-color);
}

@media (max-width: 768px) {
  nav {
    padding: 0.8rem 1rem;
  }
  .nav-links {
    display: none;
  }
  .mobile-menu-toggle {
    display: block;
  }
  .container {
    padding-top: 80px;
  }
  .hero h1 {
    font-size: 2.8rem;
  }
  .typing-text {
    font-size: 1.3rem;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .about-content {
    flex-direction: column;
    text-align: center;
  }
  .about-image {
      order: -1;
      margin-bottom: 1rem;
  }
}