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

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a25;
  --text-primary: #e8e8ed;
  --text-secondary: #9898a6;
  --accent: #6c63ff;
  --accent-hover: #5a52e0;
  --accent-glow: rgba(108, 99, 255, 0.15);
  --border: #2a2a3a;
  --radius: 12px;
  --transition: 0.3s ease;
}

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

body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

img {
  max-width: 100%;
  display: block;
}

/* ===== Container ===== */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.navbar__logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.navbar__logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== Section base ===== */
section {
  padding: 100px 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.section-title span {
  color: var(--accent);
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 48px;
  max-width: 560px;
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 64px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 20% 50%, var(--accent-glow) 0%, transparent 60%),
    var(--bg-primary);
}

.hero__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.hero__content {
  max-width: 560px;
  flex: 1;
}

/* --- Code Writer Block --- */
.code-writer {
  width: 320px;
  flex-shrink: 0;
  background: #0d0d14;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(108, 99, 255, 0.1);
}

.code-writer__header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: #161622;
  border-bottom: 1px solid var(--border);
}

.code-writer__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.code-writer__dot--red    { background: #ff5f57; }
.code-writer__dot--yellow { background: #febc2e; }
.code-writer__dot--green  { background: #28c840; }

.code-writer__filename {
  margin-left: 8px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-family: "Courier New", monospace;
}

.code-writer__code {
  padding: 18px;
  font-family: "Courier New", monospace;
  font-size: 0.85rem;
  line-height: 1.7;
  color: #a8b2d1;
  min-height: 200px;
  margin: 0;
  white-space: pre;
}

/* --- Typing Cursor --- */
.typing-cursor {
  border-right: 2px solid #6c63ff;
  padding-right: 4px;
  animation: blinkCursor 0.7s step-end infinite;
}

@keyframes blinkCursor {
  0%, 100% { border-color: #6c63ff; }
  50% { border-color: transparent; }
}

/* --- Floating Code Symbols --- */
.floating-symbols {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.floating-symbol {
  position: absolute;
  color: #6c63ff;
  font-family: "Courier New", monospace;
  font-weight: 700;
  letter-spacing: 1px;
  user-select: none;
  animation: floatDrift ease-in-out infinite;
}

@keyframes floatDrift {
  0%   { transform: translateY(0) translateX(0) rotate(0deg); }
  25%  { transform: translateY(-60px) translateX(30px) rotate(12deg); }
  50%  { transform: translateY(-20px) translateX(-25px) rotate(-8deg); }
  75%  { transform: translateY(-70px) translateX(15px) rotate(6deg); }
  100% { transform: translateY(0) translateX(0) rotate(0deg); }
}

.hero__row {
  position: relative;
  z-index: 2;
}

/* --- Hero Right Column --- */
.hero-right {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  flex-shrink: 0;
}

/* --- Hero Photo --- */
.hero-photo {
  width: 320px;
  height: 320px;
  overflow: hidden;
  background: transparent;
  margin-top: 0;
  -webkit-mask-image: radial-gradient(circle, #000 55%, transparent 68%);
  mask-image: radial-gradient(circle, #000 55%, transparent 68%);
}

.hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.hero-photo__placeholder {
  display: none;
}

.hero-photo__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
}

/* --- Name reveal --- */
.hero__name {
  color: #ffffff;
  opacity: 0;
  animation: nameAppear 1s ease forwards;
  animation-delay: 1.6s;
}

.hero__tagline {
  opacity: 0;
  animation: softFade 1s ease forwards;
  animation-delay: 2.4s;
}

.hero__cta {
  opacity: 0;
  margin-top: 20px;
  animation: softFade 1.2s ease forwards;
  animation-delay: 3.8s;
}

@keyframes nameAppear {
  from { opacity: 0; filter: blur(8px); }
  to   { opacity: 1; filter: blur(0); }
}

@keyframes softFade {
  to { opacity: 1; }
}

/* --- Scroll Indicator --- */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
  animation: softFade 1s ease forwards;
  animation-delay: 3.5s;
  opacity: 0;
}

.scroll-indicator__text {
  font-size: 0.7rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-secondary);
  opacity: 0.6;
}

.scroll-indicator__arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
  animation: scrollBounce 2s ease-in-out infinite;
  opacity: 0.5;
}

@keyframes scrollBounce {
  0%, 100% { transform: rotate(45deg) translateY(0); opacity: 0.5; }
  50%      { transform: rotate(45deg) translateY(6px); opacity: 1; }
}

.hero__greeting {
  font-size: 1.05rem;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.hero__name {
  font-size: clamp(2.4rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 12px;
}

.hero__tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.6;
}

.hero__cta {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 14px 36px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  transition: background var(--transition), transform var(--transition);
}

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

/* ===== About ===== */
.about {
  background: var(--bg-secondary);
}

.about__text {
  max-width: 720px;
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.85;
}

.about__text p + p {
  margin-top: 20px;
}

.about__stats {
  display: flex;
  gap: 48px;
  margin-top: 40px;
}

.about__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.about__stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
}

.about__stat-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ===== Skills ===== */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color var(--transition), transform var(--transition);
}

.skill-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.skill-card__name {
  font-size: 1.05rem;
  font-weight: 600;
}

/* ===== Process ===== */
.process__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.process-step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: border-color var(--transition), transform var(--transition);
}

.process-step:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.process-step__number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 12px;
  opacity: 0.6;
}

.process-step__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.process-step__desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* ===== Projects ===== */
.projects {
  background: var(--bg-secondary);
}

.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition), transform var(--transition);
}

.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.project-card__title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.project-card__desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 20px;
  flex-grow: 1;
}

.project-card__stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-card__tag {
  background: var(--accent-glow);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
}

/* ===== Contact ===== */
.contact__wrapper {
  max-width: 560px;
}

.contact__text {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 32px;
  line-height: 1.7;
}

.contact__telegram {
  display: inline-block;
  margin-bottom: 28px;
  padding: 12px 28px;
  background: #2AABEE;
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
}

.contact__telegram:hover {
  background: #229ED9;
  color: #fff;
  transform: translateY(-2px);
}

#contact-form {
  margin-top: 8px;
}

.form__group {
  margin-bottom: 20px;
}

.form__label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.form__input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition);
}

.form__input::placeholder {
  color: var(--text-secondary);
  opacity: 0.6;
}

.form__input:focus {
  outline: none;
  border-color: var(--accent);
}

.form__input--error {
  border-color: #e74c3c;
}

.form__error {
  display: block;
  color: #e74c3c;
  font-size: 0.82rem;
  margin-top: 6px;
}

.form__textarea {
  resize: vertical;
  min-height: 120px;
}

.form__submit {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 14px 36px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}

.form__submit:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

.form__success {
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 600;
  padding: 24px;
  background: var(--accent-glow);
  border-radius: var(--radius);
  text-align: center;
}

/* ===== Footer ===== */
.footer {
  text-align: center;
  padding: 32px 0;
  border-top: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.footer__social {
  margin-bottom: 16px;
}

.footer__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.footer__icon:hover {
  color: #2AABEE;
  border-color: #2AABEE;
  background: rgba(42, 171, 238, 0.1);
}

/* ===== Case Pages ===== */
.case-hero {
  padding: 140px 0 60px;
  background:
    radial-gradient(ellipse at 20% 50%, var(--accent-glow) 0%, transparent 60%),
    var(--bg-primary);
}

.case-back {
  display: inline-block;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 32px;
  transition: color var(--transition);
}

.case-back:hover {
  color: var(--accent);
}

.case-hero__title {
  font-size: clamp(2.2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 16px;
}

.case-hero__subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.7;
  max-width: 640px;
  margin-bottom: 24px;
}

.case-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.case-section {
  padding: 72px 0;
}

.case-section--alt {
  background: var(--bg-secondary);
}

.case-block {
  max-width: 720px;
}

.case-block__title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--accent);
}

.case-block p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.85;
}

.case-block p + p {
  margin-top: 16px;
}

.case-block strong {
  color: var(--text-primary);
}

.case-list {
  list-style: none;
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.case-list li {
  position: relative;
  padding-left: 24px;
  color: var(--text-secondary);
  font-size: 1.02rem;
  line-height: 1.7;
}

.case-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
}

.case-results {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.case-results li {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: border-color var(--transition);
}

.case-results li:hover {
  border-color: var(--accent);
}

.case-results__label {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.case-results__value {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.case-stat {
  text-align: center;
  padding: 40px 0;
  margin-bottom: 24px;
}

.case-stat__number {
  display: block;
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.case-stat__label {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.case-link {
  display: inline-block;
  margin-top: 20px;
  padding: 10px 24px;
  background: var(--accent-glow);
  color: var(--accent);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius);
  border: 1px solid var(--accent);
  transition: background var(--transition), color var(--transition);
}

.case-link:hover {
  background: var(--accent);
  color: #fff;
}

/* ===== Project Card Link ===== */
a.project-card {
  color: inherit;
  text-decoration: none;
}

a.project-card .project-card__more {
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
  margin-top: auto;
  padding-top: 16px;
  transition: color var(--transition);
}

a.project-card:hover .project-card__more {
  color: var(--accent-hover);
}

/* ===== Mobile ===== */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(12px);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
  }

  .nav-links.active {
    display: flex;
  }

  section {
    padding: 72px 0;
  }

  .hero__row {
    flex-direction: column-reverse;
    text-align: center;
  }

  .hero-right {
    width: 100%;
  }

  .code-writer {
    width: 100%;
  }

  .hero__content {
    max-width: 100%;
  }

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

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

  .about__stats {
    gap: 32px;
  }
}