/* ==========================================================================
   MIRA HAIR STUDIO — NOCTIS AURUM MOTION ENGINE
   Luxury Animation Stylesheet (impeccable + gold-obsidian-design)
   ========================================================================== */

:root {
  --aaa-gold: #c9a96e;
  --aaa-gold-light: #e8d5b0;
  --aaa-gold-dark: #8a6f3b;
  --aaa-gold-hair: rgba(201, 169, 110, 0.25);
  --aaa-ease-luxury: cubic-bezier(0.16, 1, 0.3, 1);
  --aaa-ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ==========================================================================
   0. CINEMATIC INTRO CURTAIN PRELOADER
   ========================================================================== */
.cinematic-curtain {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: #0f0c0a;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  pointer-events: all;
  animation: curtainLift 0.9s cubic-bezier(0.77, 0, 0.175, 1) forwards 1.2s;
}

.curtain-logo {
  font-family: var(--font-heading, "Cormorant Garamond", serif);
  font-size: clamp(1.8rem, 5vw, 3.2rem);
  font-weight: 600;
  letter-spacing: 0.25em;
  color: #f0e6d2;
  text-align: center;
  opacity: 0;
  transform: scale(0.92);
  animation: curtainLogoEntrance 1.1s cubic-bezier(0.16, 1, 0.3, 1) forwards 0.15s;
}

.curtain-logo span {
  display: block;
  font-size: clamp(0.65rem, 1.8vw, 0.78rem);
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: #c9a96e;
  margin-top: 0.6rem;
  font-family: var(--font-sans, "Montserrat", sans-serif);
  font-weight: 500;
}

.curtain-line {
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, #c9a96e, transparent);
  margin-top: 1.5rem;
  animation: lineExpand 0.9s cubic-bezier(0.16, 1, 0.3, 1) forwards 0.4s;
}

@keyframes curtainLogoEntrance {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes lineExpand {
  to {
    width: 260px;
  }
}

@keyframes curtainLift {
  0% {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  99% {
    transform: translateY(-100%);
    opacity: 1;
  }
  100% {
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }
}

/* ==========================================================================
   1. БЕГУЩАЯ СТРОКА (MARQUEE RIBBON) — ЭТАЛОННАЯ ЧИСТОТА И ГРАДИЕНТНЫЕ КРАЯ
   --------------------------------------------------------------------------
   - Исключён любой vertical skew / наклон (0% искажений).
   - Мягкая маска по краям (боковые фейды 5% слева и справа).
   - Золотые hairline-бордеры 1px с легким внутренним свечением.
   ========================================================================== */
.marquee-ribbon {
  position: relative;
  overflow: hidden;
  background: rgba(18, 14, 12, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid rgba(201, 169, 110, 0.25);
  border-bottom: 1px solid rgba(201, 169, 110, 0.25);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(201, 169, 110, 0.1);
  padding: 1.15rem 0;
  display: flex;
  user-select: none;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, black 4%, black 96%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0%, black 4%, black 96%, transparent 100%);
}

.marquee-track {
  display: flex;
  align-items: center;
  width: max-content;
  will-change: transform;
  animation: marqueeScroll 34s linear infinite;
}

.marquee-ribbon:hover .marquee-track {
  animation-play-state: paused;
}

.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 2rem;
  padding: 0 2rem;
  font-family: var(--font-heading, "Cormorant Garamond", serif);
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-light, #e8d5b0);
  white-space: nowrap;
  transform: none !important; /* Строгий запрет на наклон и обрезку */
}

.marquee-diamond {
  color: var(--gold-primary, #c9a96e);
  font-size: 0.85rem;
  opacity: 0.85;
  text-shadow: 0 0 10px rgba(201, 169, 110, 0.4);
}

@keyframes marqueeScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ==========================================================================
   2. ЗОЛОТАЯ НИТЬ (HAIRLINE HOVER) НА ССЫЛКАХ И КНОПКАХ
   ========================================================================== */
.nav-menu a,
.footer-links a,
.service-link-more {
  position: relative;
  transition: color 0.3s var(--aaa-ease-luxury);
}

.nav-menu a::after,
.service-link-more::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--aaa-gold), transparent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.38s var(--aaa-ease-luxury);
  pointer-events: none;
}

.nav-menu a:hover::after,
.service-link-more:hover::after {
  transform: scaleX(1);
}

/* ==========================================================================
   3. КАРТОЧКИ КАТАЛОГА И ОТЗЫВОВ (ELEGANT HOVER ELEVATION)
   ========================================================================== */
.service-card,
.transformation-card,
.review-card,
.about-card {
  transition: transform 0.38s var(--aaa-ease-luxury),
              box-shadow 0.38s var(--aaa-ease-luxury),
              border-color 0.38s var(--aaa-ease-luxury);
  will-change: transform;
}

.service-card:hover,
.transformation-card:hover,
.review-card:hover {
  transform: translateY(-4px);
  border-color: rgba(201, 169, 110, 0.4);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.6),
              0 0 24px rgba(201, 169, 110, 0.16);
}

/* ==========================================================================
   4. МАГНИТНАЯ КНОПКА CTA (MAGNETIC HERO BUTTON)
   ========================================================================== */
.hero-btn-main {
  will-change: transform;
  transform: translateZ(0);
  transition: box-shadow 0.35s var(--aaa-ease-luxury);
}

.hero-btn-main:hover {
  box-shadow: 0 8px 30px rgba(201, 169, 110, 0.45);
}

/* ==========================================================================
   5. ПЛАВНЫЙ СЛАЙДЕР ДО / ПОСЛЕ (HANDLE & DIVIDER)
   ========================================================================== */
.slider-handle {
  transition: transform 0.2s var(--aaa-ease-luxury),
              box-shadow 0.2s var(--aaa-ease-luxury);
}

.slider-wrapper:hover .slider-handle {
  transform: translate(-50%, -50%) scale(1.08);
  box-shadow: 0 0 25px rgba(201, 169, 110, 0.6);
}

/* ==========================================================================
   6. PREFERS-REDUCED-MOTION (БЕЗОПАСНОСТЬ)
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  .marquee-track {
    animation-play-state: paused !important;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}