/* ==================================
   CSS-переменные для цветовой палитры
   ================================== */
:root {
    --color-bg: #f5f7f9;          /* чуть более тёплый светлый фон */
    --color-secondary-bg: #ffffff;
    --color-text: #1a1a1a;
    --color-accent-1: #3ab0a4;    /* бирюзовый акцент */
    --color-accent-2: crimson;    /* медно-оранжевый акцент */
    --color-border: #dfe3e6;
    --color-muted: #666666;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Roboto', sans-serif;
}

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

html,
body {
    width: 100%;
    font-family: var(--font-body);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.5;
    overflow-x: hidden;
}

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

/* Ссылки */
a {
    text-decoration: none;
    color: inherit;
}

/* ======================
   1. Hero-секция
   ====================== */
.hero {
    position: relative;
    height: 100vh;
    width: 100%;
    overflow: hidden;
    background: linear-gradient(
            135deg,
            rgba(245, 247, 249, 0.9) 0%,
            rgba(235, 242, 245, 0.9) 100%
    );
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.6);
}

.hero-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
}

.hero-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 20px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3rem; /* 48px */
    color: #ffffff;
    text-shadow: 0 0 5px rgba(0, 0, 0, 0.4);
}

.hero-subtitle {
    margin-top: 10px;
    font-size: 1.125rem; /* 18px */
    color: #ffffff;
    opacity: 0.9;
}

.btn-primary {
    margin-top: 20px;
    padding: 12px 24px;
    background: var(--color-accent-2);
    color: #ffffff;
    font-family: var(--font-heading);
    font-size: 1rem;
    border: none;
    border-radius: 6px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: background 0.3s ease, transform 0.2s ease;
}

.btn-primary:hover {
    background: hsl(348, 83%, 30%);
    transform: translateY(-2px);
}

.seal-hover {
    position: absolute;
    width: 80px;
    height: 80px;
    top: 20px;
    right: 20px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.hero-content:hover .seal-hover {
    opacity: 1;
}

/* ======================
   Скролл к галерее
   ====================== */
html {
    scroll-behavior: smooth;
}

/* ======================
   2. Фотогалерея дружбы (кастомный слайдер)
   ====================== */
.gallery-section {
    background: var(--color-secondary-bg);
    padding: 60px 20px 40px;
    position: relative;
    overflow: hidden;
}

/*.gallery-section::before {*/
/*    content: '';*/
/*    position: absolute;*/
/*    top: 10%;*/
/*    left: 5%;*/
/*    width: 250px;*/
/*    height: 250px;*/
/*    background: rgba(58, 176, 164, 0.1);*/
/*    border-radius: 50%;*/
/*    z-index: 0;*/
/*}*/

.section-title {
    position: relative;
    font-family: var(--font-heading);
    font-size: 2rem; /* 32px */
    color: var(--color-text);
    margin-bottom: 30px;
    text-align: center;
}

/* Слайдер */
.slider {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    z-index: 1;
}

.slides-container {
    position: relative;
    width: 100%;
    height: 60vh;
    max-height: 600px;
    overflow: hidden;
    border-radius: 8px;
    border: 1px solid var(--color-border);
}

.slide {
    display: none;
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
}

.slide.active {
    display: block;
}

/* Кнопки слайдера */
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.8);
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--color-text);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    transition: background 0.2s ease, transform 0.2s ease;
    z-index: 2;
}

.slider-btn:hover {
    background: rgba(255, 255, 255, 1);
    transform: translateY(-50%) scale(1.1);
}

.prev-btn {
    left: 10px;
}

.next-btn {
    right: 10px;
}

/* Lightbox */
.lightbox-overlay {
    display: none;
    position: fixed;
    z-index: 100;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    align-items: center;
    justify-content: center;
}

.lightbox-overlay img#lightbox-image {
    max-width: 90%;
    max-height: 80%;
    border-radius: 4px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 2rem;
    color: #ffffff;
    cursor: pointer;
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #ffffff;
    font-size: 2rem;
    cursor: pointer;
    padding: 10px;
}

.prev-lightbox {
    left: 20px;
}

.next-lightbox {
    right: 20px;
}

/* ======================
   3. Интерактивный гаджет
   ====================== */
.interactive-section {
    background: var(--color-secondary-bg);
    padding: 60px 20px 40px;
    position: relative;
    overflow: hidden;
}

.bouquet-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    z-index: 1;
    position: relative;
}

.section-subtitle {
    font-family: var(--font-heading);
    font-size: 1.75rem; /* 28px */
    margin-bottom: 20px;
    color: var(--color-text);
}

.drag-area {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: 40px;
    position: relative;
    margin-top: 20px;
    flex-wrap: wrap;
}

.draggable-item {
    width: 80px;
    height: 80px;
    cursor: grab;
}

.draggable-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.vase {
    width: 100px;
    height: 120px;
    border: 2px dashed var(--color-border);
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #fafafa;
    position: relative;
}

.vase img {
    width: 60%;
    opacity: 0.3;
}

.bouquet-message {
    display: none;
    margin-top: 20px;
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--color-accent-2);
}

.flying-area {
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    width: 100%;
    height: 100%;
    overflow: visible;
    z-index: 10;
}

/* Летучая зверушка */
.flying-creature {
    position: absolute;
    width: 60px;
    height: 60px;
    animation: fly-across 12s linear infinite;
    cursor: pointer;
}

@keyframes fly-across {
    0% {
        left: -80px;
        top: 20%;
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    50% {
        left: 50%;
        top: 40%;
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        left: 110%;
        top: 60%;
        opacity: 0;
    }
}

/* ======================
   4. Поздравительное слово
   ====================== */
.congrats-section {
    background: crimson;
    padding: 60px 20px 40px;
    position: relative;
    overflow: hidden;
}

.congrats-section::before {
    content: '';
    position: absolute;
    top: 5%;
    right: 5%;
    width: 200px;
    height: 200px;
    background: rgba(214, 90, 49, 0.05);
    border-radius: 50%;
    z-index: 0;
}

.congrats-section::after {
    content: '';
    position: absolute;
    bottom: 10%;
    left: 10%;
    width: 150px;
    height: 150px;
    background: rgba(58, 176, 164, 0.05);
    border-radius: 50%;
    z-index: 0;
}

.congrats-text {
    max-width: 800px;
    margin: 0 auto;
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 30px 20px;
    position: relative;
    z-index: 1;
}

.congrats-text p {
    font-size: 1.125rem; /* 18px */
    color: var(--color-text);
    margin-bottom: 16px;
    transition: text-shadow 0.5s ease;
}

.congrats-text p:hover {
    animation: text-flash 0.5s;
}

@keyframes text-flash {
    0% {
        text-shadow: none;
    }
    50% {
        text-shadow: 0 0 8px rgba(58, 176, 164, 0.5);
    }
    100% {
        text-shadow: none;
    }
}

.signature {
    font-family: var(--font-heading);
    font-size: 1rem; /* 16px */
    color: var(--color-muted);
    text-align: right;
    margin-top: 24px;
}

/* ======================
   5. Footer
   ====================== */
footer {
    background: var(--color-secondary-bg);
    border-top: 1px solid var(--color-border);
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-text {
    font-size: 0.875rem; /* 14px */
    color: var(--color-muted);
}

.social-icons {
    display: flex;
    gap: 12px;
}

.social-link img {
    width: 28px;
    height: 28px;
    transition: transform 0.3s ease;
}

.social-link:hover img {
    transform: scale(1.1);
}

/* ======================
   Адаптивность
   ====================== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    .hero-subtitle {
        font-size: 1rem;
    }
    .slides-container {
        height: 40vh;
    }
    .drag-area {
        flex-direction: column;
        gap: 20px;
    }
}