@tailwind base;
@tailwind components;
@tailwind utilities;

/* Полоска для ХИМИИ (коричневая) */
.brush-underline {
  position: relative;
  display: inline-block;
}
.brush-underline:after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 320px;
  height: 9px;
  background: linear-gradient(90deg, 
    transparent 5%,
    #c26c3f 15%,
    #d47a4a 45%,
    #c26c3f 70%,
    transparent 95%);
  border-radius: 50% 40% 60% 30%;
  filter: blur(1.2px);
  opacity: 0.9;
}

/* Белая полоска для тёмных блоков (Химия) */
.white-underline {
  position: relative;
  display: inline-block;
}
.white-underline:after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 320px;
  height: 9px;
  background: linear-gradient(90deg, 
    transparent 5%,
    #ffffff 15%,
    #f5f5f5 45%,
    #ffffff 70%,
    transparent 95%);
  border-radius: 50% 40% 60% 30%;
  filter: blur(1.2px);
  opacity: 0.85;
}

/* Полоска для БИОЛОГИИ (зелёная) */
.bio-underline {
  position: relative;
  display: inline-block;
}
.bio-underline:after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 320px;
  height: 9px;
  background: linear-gradient(90deg, 
    transparent 5%,
    #4a9c3e 15%,
    #5eb34f 45%,
    #4a9c3e 70%,
    transparent 95%);
  border-radius: 50% 40% 60% 30%;
  filter: blur(1.2px);
  opacity: 0.9;
}

/* Цвета */
.brown-bg { background-color: #9c5a3c; }
.bio-bg   { background-color: #7cb86a; }

.bg-bio-light { background-color: #e8f3e8; }
.bg-bio-card  { background-color: #7cb86a; }

/* Кнопка */
.hero-button {
  padding: 20px 60px;
  font-size: 1.35rem;
  font-weight: 700;
  border: 5px solid;
  border-radius: 9999px;
  transition: all 0.4s ease;
  letter-spacing: 0.5px;
}
.hero-button:hover {
  color: white;
  transform: scale(1.06);
}

.card {
  transition: all 0.3s ease;
}
.card:hover {
  transform: translateY(-10px);
}

/* ========== АНИМАЦИИ ========== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.zoom-on-scroll {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.zoom-on-scroll.visible {
  opacity: 1;
  transform: scale(1);
}

.slide-left-on-scroll {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-left-on-scroll.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-down-on-scroll {
  opacity: 0;
  transform: translateY(-40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-down-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }
.delay-500 { transition-delay: 0.5s; }
.delay-600 { transition-delay: 0.6s; }
.delay-700 { transition-delay: 0.7s; }

/* ===================================== */
/* ОТЗЫВЫ */
/* ===================================== */

.reviewsSwiper {
    overflow: visible;
}

.review-card {
    background: #fff;
    border-radius: 32px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,.25);
}

.review-card img {
    width: 100%;
    display: block;
}

.reviewsSwiper .swiper-slide {
    transform: scale(.82);
    opacity: .5;
    transition: .4s;
}

.reviewsSwiper .swiper-slide-active {
    transform: scale(1);
    opacity: 1;
}

.swiper-pagination {
    position: relative;
    margin-top: 40px;
}

.swiper-pagination-bullet {
    background: #fff;
}

.swiper-pagination-bullet-active {
    background: #fff;
}

/* Крупные карточки */

.review-card{
    max-width: 700px;
    margin: 0 auto;

    border-radius: 30px;
    overflow: hidden;

    box-shadow: 0 20px 50px rgba(0,0,0,.25);
}

.review-card img{
    width:100%;
    display:block;
}

/* Неактивные отзывы */

.reviewsSwiper .swiper-slide{
    opacity:.4;
    transform:scale(.88);
    transition:.4s;
}

.reviewsSwiper .swiper-slide-active{
    opacity:1;
    transform:scale(1);
}

/* Стрелки */

.reviews-controls{
    display:flex;
    justify-content:center;
    gap:25px;
    margin-top:40px;
}

.reviews-prev,
.reviews-next{

    width:70px;
    height:70px;

    border-radius:50%;
    border:none;

    background:#fff;
    color:#5c2f1f;

    font-size:32px;
    cursor:pointer;

    transition:.3s;
}

.reviews-prev:hover,
.reviews-next:hover{
    transform:scale(1.1);
}

.reviewsSwiper{
    position:relative;
    overflow:visible;
}

/* большие стрелки */

.reviews-prev,
.reviews-next{

    position:absolute;
    top:50%;
    transform:translateY(-50%);

    width:90px;
    height:90px;

    border-radius:50%;

    background:rgba(255,255,255,.95);

    display:flex;
    align-items:center;
    justify-content:center;

    cursor:pointer;

    z-index:30;

    color:#5c2f1f;

    box-shadow:0 10px 30px rgba(0,0,0,.25);

    transition:.3s;
}

.reviews-prev:hover,
.reviews-next:hover{
    transform:translateY(-50%) scale(1.08);
}

/* слева */

.reviews-prev{
    left:-45px;
}

/* справа */

.reviews-next{
    right:-45px;
}

/* адаптив */

@media(max-width:768px){

    .reviews-prev,
    .reviews-next{

        width:65px;
        height:65px;
    }

    .reviews-prev{
        left:-10px;
    }

    .reviews-next{
        right:-10px;
    }
}

/* ========== НОВЫЕ СОВРЕМЕННЫЕ АНИМАЦИИ ========== */

/* Появление с увеличением и прозрачностью */
.fade-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Выезд справа */
.slide-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.slide-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Появление с вращением */
.rotate-in {
  opacity: 0;
  transform: perspective(500px) rotateX(15deg);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.rotate-in.visible {
  opacity: 1;
  transform: perspective(500px) rotateX(0);
}

/* Затухание с задержкой для текста */
.fade-in {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.fade-in.visible {
  opacity: 1;
}

/* Плавное появление с левым сдвигом (лёгкий) */
.slide-left-light {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.slide-left-light.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Появление снизу с пружинным эффектом */
.spring-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55), transform 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.spring-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Поочерёдное появление для карточек */
.stagger-item {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-item.visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger-item:nth-child(1) { transition-delay: 0.05s; }
.stagger-item:nth-child(2) { transition-delay: 0.15s; }
.stagger-item:nth-child(3) { transition-delay: 0.25s; }
.stagger-item:nth-child(4) { transition-delay: 0.35s; }