#portfolio {
    padding: 100px 0;
    min-height: 100vh;
}

#portfolio h2,
.portfolio-heading {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: white;
}

.portfolio-intro {
    display: none;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

.portfolio-item { width: 100%; position: relative; }

.portfolio-row {
    display: flex;
    align-items: stretch;
    gap: 0.6rem;
    margin-bottom: 1rem;
    width: 100%;
}

.toggle-iframe-btn {
    flex: 1;
    background: rgba(30, 30, 30, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    width: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 1rem;
    font-family: inherit;
}

.toggle-iframe-btn .arrow {
    display: inline-block;
    transition: transform 0.35s ease;
}

.toggle-iframe-btn.collapsed .arrow { transform: rotate(-90deg); }
.toggle-iframe-btn.expanded .arrow { transform: rotate(90deg); }

.portfolio-item[data-project="salon"] .toggle-iframe-btn {
    background: rgba(80, 20, 50, 0.95); border-color: rgba(236, 72, 153, 0.65); color: #f9a8d4;
}
.portfolio-item[data-project="auto"] .toggle-iframe-btn {
    background: rgba(70, 15, 15, 0.95); border-color: rgba(220, 38, 38, 0.65); color: #fca5a5;
}
.portfolio-item[data-project="stroi"] .toggle-iframe-btn {
    background: rgba(60, 40, 5, 0.95); border-color: rgba(245, 158, 11, 0.65); color: #fcd34d;
}
.portfolio-item[data-project="gardi"] .toggle-iframe-btn {
    background: rgba(5, 50, 45, 0.95); border-color: rgba(22, 247, 221, 0.55); color: #99f6e4;
}
.portfolio-item[data-project="cafe"] .toggle-iframe-btn {
    background: rgba(40, 25, 10, 0.95); border-color: rgba(212, 165, 116, 0.55); color: #e8c4a0;
}

.open-new-tab-btn {
    flex-shrink: 0;
    width: 48px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(30, 30, 30, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: white;
    border-radius: 8px;
    text-decoration: none;
    font-size: 1.1rem;
}

.open-new-tab-btn i { font-style: normal; }

.iframe-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 1rem;
    transition: height 0.4s ease, opacity 0.35s ease;
}

.iframe-container iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.iframe-container img.screenshot {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    inset: 0;
}

.iframe-container.collapsed {
    height: 0 !important;
    min-height: 0 !important;
    aspect-ratio: unset !important;
    opacity: 0 !important;
    margin: 0 !important;
    pointer-events: none !important;
}

.mobile-project-name { display: none; }

#portfolio .glass-panel {
    max-width: none;
    padding: 1rem 0;
    border-radius: 0;
    border: none;
    box-shadow: none;
}

@media (max-width: 768px) {
    #portfolio {
        padding: 0.5rem 0 0 !important;
        min-height: auto;
    }

    .portfolio-heading {
        display: block !important;
        text-align: left;
        font-size: 1.25rem !important;
        margin: 0 0 0.4rem !important;
        opacity: 1 !important;
        padding: 0 2px;
    }

    .portfolio-intro {
        display: block !important;
        font-size: 0.9rem;
        line-height: 1.45;
        color: rgba(255, 255, 255, 0.7);
        margin: 0 0 1.1rem;
        padding: 0 2px;
        opacity: 1 !important;
        transform: none !important;
    }

    .portfolio-grid {
        display: block;
        padding: 0 !important;
        margin: 0 !important;
    }

    .portfolio-item {
        width: 100%;
        margin-bottom: 1.5rem;
        position: relative !important;
        display: flex;
        flex-direction: column;
    }

    .toggle-iframe-btn { display: none !important; }

    .mobile-project-name {
        display: block !important;
        order: 0;
        text-align: center;
        font-size: 0.88rem;
        color: rgba(255, 255, 255, 0.7);
        margin: 0 0 0.55rem;
        opacity: 1 !important;
    }

    .portfolio-item .iframe-container,
    .portfolio-item .mobile-bot-demo {
        order: 2;
    }

    .portfolio-item .portfolio-row {
        order: 1;
        display: block !important;
        position: relative !important;
        height: 0 !important;
        padding: 0 !important;
        margin: 0 !important;
        width: 100% !important;
        overflow: visible !important;
        z-index: 10 !important;
        pointer-events: none !important;
    }

    .open-new-tab-btn {
        position: absolute !important;
        top: calc((100vw - 24px) * 16 / 9 * 0.42) !important;
        left: 50% !important;
        transform: translate(-50%, -50%) !important;
        width: auto !important;
        min-width: 0 !important;
        height: auto !important;
        display: inline-flex !important;
        align-items: center !important;
        gap: 0.4rem !important;
        background: rgba(0, 0, 0, 0.88) !important;
        border: 2px solid rgba(255, 255, 255, 0.45) !important;
        color: #fff !important;
        padding: 0.7rem 1.35rem !important;
        border-radius: 50px !important;
        font-size: 0.92rem !important;
        font-weight: 600 !important;
        z-index: 12 !important;
        pointer-events: auto !important;
        white-space: nowrap;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.45);
    }

    .open-new-tab-btn::after {
        content: ' Открыть демо';
        font-style: normal;
        font-size: 0.9rem;
    }

    .open-new-tab-btn i {
        font-size: 1.05rem !important;
        color: #fff !important;
    }

    .iframe-container iframe { display: none !important; }

    .iframe-container,
    .iframe-container.collapsed {
        aspect-ratio: 9 / 16 !important;
        border-radius: 12px !important;
        margin: 0 !important;
        overflow: hidden !important;
        position: relative !important;
        width: 100% !important;
        height: auto !important;
        opacity: 1 !important;
        transform: none !important;
        pointer-events: auto !important;
        z-index: 1 !important;
        isolation: isolate;
    }

    .iframe-container img.screenshot {
        position: relative !important;
        width: 100% !important;
        height: auto !important;
        object-fit: cover !important;
        display: block !important;
        filter: blur(2.5px) !important;
        -webkit-filter: blur(2.5px) !important;
        transform: scale(1.02);
    }

    .iframe-container::after {
        content: '' !important;
        position: absolute !important;
        inset: 0 !important;
        background: rgba(0, 0, 0, 0.12) !important;
        pointer-events: none !important;
        z-index: 2 !important;
    }

    #portfolio .glass-panel {
        padding: 0.5rem 0 !important;
        background: transparent !important;
        margin: 0 !important;
    }
}