/* ============================================================
   Ольга Сергеевна — чёрно-фиолетовый магический стиль
   ============================================================ */

/* ---------- reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #0c0c15;
  --bg-card:     rgba(22, 16, 38, 0.85);
  --bg-card-h:   rgba(35, 22, 60, 0.95);
  --purple-deep: #1a0f2e;
  --purple:      #6b2fa0;
  --purple-mid:  #8b4fc6;
  --purple-light:#c084fc;
  --purple-glow: #a855f7;
  --gold:        #d4a843;
  --text:        #ffffff;
  --text-dim:    #b876bc;
  --text-bright: #f5f0ff;
  --border:      rgba(139, 79, 198, 0.25);
  --shadow:      0 8px 32px rgba(107, 47, 160, 0.3);
  --shadow-glow: 0 0 30px rgba(168, 85, 247, 0.25);
  --radius:      16px;
  --radius-sm:   10px;
  --font-display:'Cormorant Garamond', Georgia, serif;
  --font-body:   'Inter', system-ui, -apple-system, sans-serif;
  --transition:  .35s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
  min-height: 100vh;
}

/* subtle radial bg */
body::before {
  content: '';
  position: fixed; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(107,47,160,0.15) 0%, transparent 70%),
    radial-gradient(ellipse 60% 50% at 80% 90%, rgba(139,79,198,0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

a { color: var(--purple-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--gold); }

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

.container { max-width: 1200px; margin: 0 auto; padding: 0 1.25rem; position: relative; z-index: 1; }

/* ---------- particles canvas ---------- */
#particles {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* ---------- section titles ---------- */
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: .5rem;
  color: var(--text-bright);
  position: relative;
}
.section-title::after {
  content: '';
  display: block;
  width: 60px; height: 3px;
  background: linear-gradient(90deg, var(--purple), var(--gold));
  border-radius: 3px;
  margin: .6rem auto 0;
}
.section-subtitle {
  text-align: center;
  color: var(--text-dim);
  margin-bottom: 2.5rem;
  font-size: 1.05rem;
}

/* ---------- floating animation ---------- */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}
.floating {
  animation: float 5s ease-in-out infinite;
  animation-delay: var(--float-delay, 0s);
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-block;
  padding: .85rem 2.2rem;
  border: none; border-radius: 50px;
  font-family: var(--font-body);
  font-size: 1rem; font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  color: var(--text-bright);
  background: linear-gradient(135deg, var(--purple) 0%, var(--purple-mid) 100%);
  position: relative; overflow: hidden;
}
.btn:hover { transform: translateY(-2px); color: #fff; }
.btn--glow {
  box-shadow: var(--shadow-glow), 0 0 15px rgba(168,85,247,0.35);
}
.btn--glow:hover {
  box-shadow: 0 0 40px rgba(168,85,247,0.55), 0 0 80px rgba(168,85,247,0.2);
}
.btn--card {
  background: linear-gradient(135deg, var(--purple-deep) 0%, var(--purple) 100%);
  width: 100%;
  text-align: center;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10, 10, 18, 0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.nav.scrolled { background: rgba(10,10,18,0.96); }
.nav__inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: .85rem 1.25rem;
}
.nav__logo {
  font-family: var(--font-display);
  font-size: 1.35rem; font-weight: 700;
  color: var(--purple-light) !important;
  letter-spacing: .02em;
}
.nav__toggle {
  display: none;
  flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer;
  padding: 4px;
}
.nav__toggle span {
  width: 24px; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: var(--transition);
}
.nav__links {
  display: flex; list-style: none; gap: 1.6rem;
}
.nav__links a {
  color: var(--text-dim); font-size: .93rem; font-weight: 500;
  transition: color var(--transition);
}
.nav__links a:hover { color: var(--purple-light); }

@media (max-width: 768px) {
  .nav__toggle { display: flex; }
  .nav__links {
    position: fixed; top: 56px; left: 0; right: 0;
    background: rgba(10,10,18,0.97);
    backdrop-filter: blur(14px);
    flex-direction: column; align-items: center;
    padding: 1.5rem 0;
    gap: 1rem;
    transform: translateY(-120%);
    transition: transform var(--transition);
    border-bottom: 1px solid var(--border);
  }
  .nav__links.open { transform: translateY(0); }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  padding: 6rem 1.5rem 3rem;
  overflow: hidden;
}
.hero__glow {
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(168,85,247,0.18) 0%, transparent 70%);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  animation: pulseGlow 6s ease-in-out infinite;
}
@keyframes pulseGlow {
  0%,100% { opacity: .6; transform: translate(-50%,-50%) scale(1); }
  50%     { opacity: 1;  transform: translate(-50%,-50%) scale(1.15); }
}
.hero__content { position: relative; z-index: 2; }
.hero__subtitle {
  font-size: clamp(.95rem, 2vw, 1.15rem);
  color: var(--purple-light);
  letter-spacing: .15em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  font-weight: 500;
}
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.2rem;
  background: linear-gradient(135deg, var(--text-bright) 30%, var(--purple-light) 60%, var(--gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__desc {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-dim);
  max-width: 560px;
  margin: 0 auto 2rem;
}
.hero__scroll-hint {
  position: absolute; bottom: 2rem;
  color: var(--text-dim);
  font-size: .8rem;
  display: flex; flex-direction: column; align-items: center; gap: .4rem;
}
.hero__scroll-arrow {
  width: 20px; height: 20px;
  border-right: 2px solid var(--purple-light);
  border-bottom: 2px solid var(--purple-light);
  transform: rotate(45deg);
  animation: bounceDown 1.8s ease-in-out infinite;
}
@keyframes bounceDown {
  0%,100% { transform: rotate(45deg) translateY(0); opacity:1; }
  50%     { transform: rotate(45deg) translateY(6px); opacity:.5; }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about {
  padding: 6rem 0;
  position: relative; z-index: 1;
}
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 3rem;
  align-items: center;
  margin-top: 2.5rem;
}
@media (max-width: 768px) {
  .about__grid { grid-template-columns: 1fr; }
}
.about__photo-wrap {
  display: flex; justify-content: center;
}
.about__photo-frame {
  position: relative;
  width: 280px; height: 280px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--purple);
  box-shadow: var(--shadow), 0 0 50px rgba(168,85,247,0.2);
  cursor: pointer;
}
.about__photo-placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, var(--purple-deep), rgba(107,47,160,0.3));
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: .4rem;
  transition: all var(--transition);
}
.about__photo-placeholder svg { width: 80px; height: 80px; }
.about__photo-upload-label {
  font-size: .8rem;
  color: var(--purple-light);
  opacity: .7;
  transition: opacity var(--transition);
}
.about__photo-frame:hover .about__photo-upload-label { opacity: 1; }
.about__photo-frame:hover .about__photo-placeholder {
  background: linear-gradient(135deg, rgba(26,15,46,0.9), rgba(107,47,160,0.45));
}
.about__photo-img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  display: none;
  border-radius: 50%;
}
.about__photo-img.visible { display: block; }
.about__photo-remove {
  position: absolute; top: 10px; right: 10px;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: rgba(0,0,0,0.6);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  font-size: .85rem;
  cursor: pointer;
  display: none;
  align-items: center; justify-content: center;
  z-index: 5;
  transition: all var(--transition);
}
.about__photo-remove:hover {
  background: rgba(220,50,50,0.8);
  border-color: rgba(255,100,100,0.5);
}
.about__photo-remove.visible { display: flex; }
.about__photo-glow {
  position: absolute; inset: -10px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(168,85,247,0.2) 0%, transparent 70%);
  pointer-events: none;
  animation: pulseGlow 4s ease-in-out infinite;
}
.about__intro {
  font-size: 1.08rem;
  line-height: 1.8;
  margin-bottom: 2rem;
}
.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.8rem;
}
@media (max-width: 600px) {
  .about__stats { grid-template-columns: 1fr; }
}
.stat-card {
  text-align: center;
  padding: 1.4rem .8rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
}
.stat-card__icon { font-size: 2rem; margin-bottom: .3rem; }
.stat-card__value {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--purple-light);
}
.stat-card__label {
  font-size: .85rem;
  color: var(--text-dim);
  margin-top: .15rem;
}
.about__more {
  color: var(--text-dim);
  line-height: 1.8;
}

/* ============================================================
   SERVICES
   ============================================================ */
.services {
  padding: 6rem 0;
  position: relative; z-index: 1;
}
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}
@media (max-width: 400px) {
  .services__grid { grid-template-columns: 1fr; }
}
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.6rem;
  transition: all var(--transition);
  backdrop-filter: blur(8px);
}
.service-card:hover {
  background: var(--bg-card-h);
  border-color: var(--purple);
  transform: translateY(-4px) !important;
  box-shadow: var(--shadow-glow);
}
.service-card__icon {
  font-size: 2.8rem;
  margin-bottom: .8rem;
}
.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  margin-bottom: .6rem;
  color: var(--text-bright);
}
.service-card p {
  color: var(--text-dim);
  font-size: .95rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}
.service-card__price {
  display: inline-block;
  padding: .35rem 1rem;
  background: rgba(107,47,160,0.25);
  border: 1px solid var(--purple);
  border-radius: 50px;
  font-weight: 600;
  font-size: .9rem;
  color: var(--purple-light);
}

/* ============================================================
   GALLERY
   ============================================================ */
.gallery {
  padding: 6rem 0;
  position: relative; z-index: 1;
}
.gallery__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}
@media (max-width: 768px) {
  .gallery__grid { grid-template-columns: 1fr; }
}

/* Slider */
.gallery__slider-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
}
.gallery__slider {
  display: flex;
  transition: transform .5s cubic-bezier(.4,0,.2,1);
  will-change: transform;
}
.gallery__slide {
  min-width: 100%;
  aspect-ratio: 4/3;
}
.gallery__img-placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, var(--purple-deep) 0%, rgba(107,47,160,0.35) 100%);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: .4rem;
}
.gallery__img-placeholder span { font-size: 3rem; }
.gallery__img-placeholder p {
  color: var(--text-dim); font-size: .9rem;
}
.gallery__slider-controls {
  display: flex; align-items: center; justify-content: center;
  gap: .8rem;
  padding: .8rem;
}
.gallery__arrow {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(107,47,160,0.3);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: .9rem;
  cursor: pointer;
  transition: all var(--transition);
}
.gallery__arrow:hover {
  background: var(--purple);
  border-color: var(--purple);
}
.gallery__dots {
  display: flex; gap: .45rem;
}
.gallery__dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(139,79,198,0.3);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}
.gallery__dot.active {
  background: var(--purple-light);
  transform: scale(1.2);
}

/* Video block */
.gallery__video {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
}
.gallery__video-placeholder {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--purple-deep) 0%, rgba(107,47,160,0.25) 100%);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: .6rem;
  position: relative;
}
.gallery__video-placeholder p { color: var(--text-dim); font-size: .95rem; }
.gallery__video-placeholder span { color: var(--text-dim); font-size: .75rem; }
.gallery__video-play {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: rgba(107,47,160,0.5);
  border: 2px solid var(--purple-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem; color: #fff;
  cursor: pointer;
  transition: all var(--transition);
  animation: pulseGlow 3s ease-in-out infinite;
}
.gallery__video-play:hover {
  background: var(--purple);
  transform: scale(1.1);
}

/* Video Modal */
.gallery__video-modal {
  display: none;
  position: fixed; inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(6px);
  align-items: center; justify-content: center;
}
.gallery__video-modal.open { display: flex; }
.gallery__video-modal-inner {
  width: 90%; max-width: 800px;
  position: relative;
}
.gallery__video-close {
  position: absolute; top: -40px; right: 0;
  background: none; border: none;
  color: #fff; font-size: 1.6rem;
  cursor: pointer;
}
.gallery__video-frame {
  border-radius: var(--radius);
  overflow: hidden;
  border: 2px solid var(--purple);
}
.gallery__video-placeholder--modal {
  aspect-ratio: 16/9;
  font-size: 1rem;
}

/* ============================================================
   COURSES
   ============================================================ */
.courses {
  padding: 6rem 0;
  position: relative; z-index: 1;
}
.courses__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}
.course-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.6rem;
  display: flex; flex-direction: column;
  transition: all var(--transition);
  backdrop-filter: blur(8px);
  position: relative;
  overflow: hidden;
}
.course-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--purple), var(--gold), var(--purple));
}
.course-card:hover {
  transform: translateY(-6px) !important;
  box-shadow: var(--shadow-glow);
  border-color: var(--purple);
}
.course-card__badge {
  display: inline-block;
  align-self: flex-start;
  padding: .25rem .8rem;
  background: rgba(212,168,67,0.2);
  border: 1px solid var(--gold);
  border-radius: 50px;
  font-size: .75rem;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: .8rem;
}
.course-card__badge--new {
  background: rgba(168,85,247,0.2);
  border-color: var(--purple-light);
  color: var(--purple-light);
}
.course-card__title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: .6rem;
}
.course-card__desc {
  color: var(--text-dim);
  font-size: .92rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}
.course-card__features {
  list-style: none;
  margin-bottom: 1.2rem;
  flex: 1;
}
.course-card__features li {
  padding: .3rem 0;
  padding-left: 1.4rem;
  position: relative;
  color: var(--text-dim);
  font-size: .88rem;
}
.course-card__features li::before {
  content: '✦';
  position: absolute; left: 0;
  color: var(--purple-light);
  font-size: .7rem;
}
.course-card__price {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 1rem;
  text-align: center;
}

/* ============================================================
   REVIEWS
   ============================================================ */
.reviews {
  padding: 6rem 0;
  position: relative; z-index: 1;
  overflow: hidden;
}
.reviews__track {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}
.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem;
  backdrop-filter: blur(8px);
  transition: all var(--transition);
}
.review-card:hover {
  border-color: var(--purple);
  box-shadow: var(--shadow-glow);
}
.review-card__stars {
  color: var(--gold);
  font-size: 1.1rem;
  margin-bottom: .6rem;
  letter-spacing: 2px;
}
.review-card__text {
  font-style: italic;
  color: var(--text);
  font-size: .98rem;
  line-height: 1.7;
  margin-bottom: .8rem;
}
.review-card__author {
  color: var(--purple-light);
  font-weight: 600;
  font-size: .9rem;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  padding: 6rem 0;
  position: relative; z-index: 1;
}
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 2rem;
  align-items: start;
}
@media (max-width: 768px) {
  .contact__grid { grid-template-columns: 1fr; }
}
.contact__methods {
  display: flex; flex-direction: column; gap: 1rem;
}
.contact__method {
  display: flex; align-items: center; gap: 1rem;
  padding: 1.2rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text) !important;
  transition: all var(--transition);
  backdrop-filter: blur(8px);
}
.contact__method:hover {
  border-color: var(--purple);
  background: var(--bg-card-h);
  transform: translateX(6px) !important;
}
.contact__method-icon { font-size: 1.8rem; }
.contact__method strong { display: block; color: var(--text-bright); }
.contact__method span { color: var(--text-dim); font-size: .9rem; }

/* Form */
.contact__form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  backdrop-filter: blur(8px);
}
.contact__form h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 1.2rem;
  text-align: center;
}
.form-group {
  margin-bottom: 1rem;
}
.form-group label {
  display: block;
  font-size: .85rem;
  color: var(--text-dim);
  margin-bottom: .3rem;
  font-weight: 500;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: .75rem 1rem;
  background: rgba(26,15,46,0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-body);
  font-size: .95rem;
  transition: border-color var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--purple-light);
  box-shadow: 0 0 12px rgba(168,85,247,0.15);
}
.form-group select { appearance: none; cursor: pointer; }
.form-group textarea { resize: vertical; }
.contact__form .btn {
  width: 100%;
  margin-top: .5rem;
}
.contact__form-success {
  display: none;
  margin-top: 1rem;
  text-align: center;
  padding: 1rem;
  background: rgba(34,120,60,0.15);
  border: 1px solid rgba(34,197,94,0.3);
  border-radius: var(--radius-sm);
  color: #4ade80;
  font-weight: 500;
}
.contact__form-success.show { display: block; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: 2.5rem 0;
  text-align: center;
  border-top: 1px solid var(--border);
  position: relative; z-index: 1;
}
.footer p { color: var(--text-dim); font-size: .85rem; }
.footer__magic {
  margin-top: .4rem;
  color: var(--purple-light) !important;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: .05em;
}

/* ============================================================
   SCROLL-REVEAL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .8s ease, transform .8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}