/* css/main.css - Базовые стили, свитчер тем и анимации переходов */

/* Сброс базовых стилей */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    scroll-behavior: smooth;
    -webkit-tap-highlight-color: transparent;
}

body {
    overflow-x: hidden;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    background-color: #fcfbfa;
    color: #333;
}

html {
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Скрытие и показ сайтов-примеров */
.demo-site-container {
    display: none;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.demo-site-container.active-site {
    display: block;
    opacity: 1;
    transform: translateY(0);
    width: 100%;
    overflow-x: hidden;
}

/* ========================================== */
/* АНИМАЦИОННЫЙ ОВЕРЛЕЙ ПЕРЕХОДА (TRANSITION) */
/* ========================================== */
.transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 10000;
    pointer-events: none;
    display: flex;
    flex-direction: column;
}

.transition-overlay .overlay-part {
    width: 100%;
    height: 50%;
    background-color: #121212;
    transition: transform 0.6s cubic-bezier(0.85, 0, 0.15, 1);
}

.transition-overlay .part-1 {
    transform: scaleY(0);
    transform-origin: top;
}

.transition-overlay .part-2 {
    transform: scaleY(0);
    transform-origin: bottom;
}

.transition-overlay .overlay-logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    opacity: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    letter-spacing: 0.25em;
    font-size: 1.5rem;
    transition: opacity 0.3s ease, transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 10001;
}

.logo-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top: 3px solid #ff7a00;
    border-radius: 50%;
    margin-bottom: 16px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Состояния анимации перехода */
.transition-overlay.animating {
    pointer-events: all;
}

.transition-overlay.animating .part-1,
.transition-overlay.animating .part-2 {
    transform: scaleY(1);
}

.transition-overlay.animating .overlay-logo {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
    transition-delay: 0.3s;
}

/* ========================================== */
/* ДЕМО-ПЕРЕКЛЮЧАТЕЛЬ (SWITCHER CONTAINER)    */
/* ========================================== */
.demo-switcher-container {
    position: fixed;
    bottom: 25px;
    right: 25px;
    z-index: 9999;
}

.webtap-back-link {
    position: fixed;
    left: 25px;
    bottom: 25px;
    z-index: 9999;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 46px;
    padding: 12px 18px;
    border: 1px solid rgba(255, 255, 255, 0.36);
    border-radius: 30px;
    background: rgba(18, 18, 18, 0.82);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: #fff;
    font-family: 'Inter', sans-serif;
    font-size: 0.86rem;
    font-weight: 700;
    line-height: 1;
    text-decoration: none;
    box-shadow: 0 12px 34px rgba(0, 0, 0, 0.18);
    transition:
        transform 0.25s ease,
        background 0.25s ease,
        box-shadow 0.25s ease;
}

.webtap-back-link:hover {
    transform: translateY(-2px);
    background: rgba(18, 18, 18, 0.94);
    box-shadow: 0 16px 38px rgba(0, 0, 0, 0.24);
}

.switcher-toggle-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 30px;
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    color: #121212;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
}

.switcher-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.95);
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.gear-icon {
    width: 18px;
    height: 18px;
    transition: transform 0.6s ease;
}

.switcher-toggle-btn:hover .gear-icon {
    transform: rotate(90deg);
}

.switcher-pulse {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 30px;
    border: 2px solid #ff7a00;
    opacity: 0;
    pointer-events: none;
    animation: buttonPulse 2s infinite;
}

@keyframes buttonPulse {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }
    100% {
        transform: scale(1.15);
        opacity: 0;
    }
}

/* Боковая панель переключателя (Drawer) */
.switcher-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: 420px;
    height: 100vh;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: -15px 0 40px rgba(0, 0, 0, 0.15);
    border-left: 1px solid rgba(255, 255, 255, 0.4);
    display: flex;
    flex-direction: column;
    padding: 30px;
    transform: translateX(110%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 10000;
}

.switcher-drawer.open {
    transform: translateX(0);
}

.drawer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.drawer-header h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: #121212;
}

.drawer-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: #888;
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s;
}

.drawer-close:hover {
    color: #121212;
}

.drawer-desc {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 24px;
}

.switcher-cards-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    flex-grow: 1;
    overflow-y: auto;
    padding-right: 5px;
}

/* Карточки вариантов дизайна */
.switcher-card {
    display: flex;
    gap: 16px;
    padding: 16px;
    background: #fff;
    border: 2px solid #eaeaea;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.switcher-card:hover {
    border-color: #d1d1d1;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.03);
}

.switcher-card.active {
    border-color: #ff7a00;
    background: rgba(255, 122, 0, 0.02);
}

.card-preview {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.ecoframe-preview {
    background: linear-gradient(135deg, #2e5a44, #c19a6b);
}
.monolith-preview {
    background: linear-gradient(135deg, #121212, #d4af37);
}
.promstroy-preview {
    background: linear-gradient(135deg, #0b192c, #ff7a00);
}

.preview-line {
    position: absolute;
    width: 70%;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    top: 20px;
    left: 10px;
    border-radius: 2px;
}
.preview-circle {
    position: absolute;
    width: 14px;
    height: 14px;
    background: rgba(255, 255, 255, 0.5);
    bottom: 10px;
    right: 10px;
    border-radius: 50%;
}

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

.card-info h4 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    color: #121212;
}

.card-style-tag {
    font-size: 0.75rem;
    font-weight: 600;
    color: #ff7a00;
}

.card-desc-text {
    font-size: 0.8rem;
    color: #666;
    line-height: 1.4;
}

.drawer-footer {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid #eee;
}

.drawer-footer p {
    font-size: 0.75rem;
    color: #999;
    text-align: center;
    line-height: 1.4;
}

/* Кастомный скроллбар для списка карточек */
.switcher-cards-list::-webkit-scrollbar {
    width: 6px;
}
.switcher-cards-list::-webkit-scrollbar-track {
    background: transparent;
}
.switcher-cards-list::-webkit-scrollbar-thumb {
    background: #ddd;
    border-radius: 3px;
}
.switcher-cards-list::-webkit-scrollbar-thumb:hover {
    background: #ccc;
}

/* Адаптивность для свитчера */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    .demo-switcher-container {
        left: 16px;
        right: 16px;
        bottom: 12px;
    }

    .webtap-back-link {
        position: relative;
        top: auto;
        bottom: auto;
        left: auto;
        min-height: 42px;
        padding: 10px 14px;
        border-radius: 18px;
        font-size: 0.8rem;
        width: fit-content;
        margin: 12px 0 0 16px;
    }

    .switcher-drawer {
        top: auto;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: min(78vh, 640px);
        padding: 18px 16px calc(18px + env(safe-area-inset-bottom, 0px));
        border-left: none;
        border-top-left-radius: 20px;
        border-top-right-radius: 20px;
        box-shadow: 0 -18px 40px rgba(0, 0, 0, 0.16);
        transform: translateY(110%);
    }

    .switcher-drawer.open {
        transform: translateY(0);
    }

    .drawer-header {
        position: sticky;
        top: 0;
        z-index: 2;
        background: inherit;
        padding-bottom: 10px;
    }

    .switcher-toggle-btn {
        width: 100%;
        justify-content: center;
        padding: 10px 14px;
        font-size: 0.8rem;
        border-radius: 18px;
    }

    .switcher-card {
        padding: 14px;
        gap: 12px;
    }

    .card-preview {
        width: 52px;
        height: 52px;
    }
}

@media (max-width: 480px) {
    .switcher-drawer {
        width: 100%;
        height: min(82vh, 680px);
        padding: 18px 14px calc(18px + env(safe-area-inset-bottom, 0px));
    }
    .demo-switcher-container {
        left: 12px;
        right: 12px;
        bottom: 12px;
    }
    .webtap-back-link {
        margin-left: 12px;
    }
    .switcher-toggle-btn {
        width: 100%;
        justify-content: center;
        padding: 10px 14px;
        font-size: 0.8rem;
    }
}