/* Cross-platform section */
.cross-platform-section {
    padding: 5rem 0;
}

.cross-platform-section .section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.cross-platform-section .section-description {
    text-align: center !important;
    margin-left: auto;
    margin-right: auto;
    line-height: 22px;
}

/* Platform scheme layout */
.platform-scheme-wrapper {
    margin-bottom: 3rem;
}

.platform-scheme-glass {
    position: relative;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(148, 163, 184, 0.15);
    border-radius: 2rem;
    padding: 2rem 1.5rem;
    max-width: 72rem;
    margin: 0 auto;
    box-shadow: 0 40px 100px -20px rgba(50, 50, 93, 0.08), inset 0 0 0 1px rgba(255, 255, 255, 0.5);
}

/* ===== Row layout ===== */
.platform-scheme-row {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
}

@media (max-width: 767px) {
    .platform-scheme-row {
        gap: 1rem;
    }
}

/* ===== Platform cards ===== */
.platform-card {
    position: relative;
    flex-shrink: 0;
    width: 12rem;
    min-height: 12rem;
    padding: 1.25rem 1.5rem;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 1.5rem;
    border: 1px solid rgba(148, 163, 184, 0.12);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    overflow: hidden;
    transition: transform 0.5s, box-shadow 0.5s, border-color 0.5s;
}

/* ===== Flow connector (base = vertical for mobile-first) ===== */
.platform-flow-connector {
    position: relative;
    width: 6rem;
    height: 6rem;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 0;
    flex-shrink: 0;
}

@media (max-width: 767px) {
    .platform-flow-connector {
        margin: 0.5rem 0;
    }
}

.platform-flow-svg-wrap {
    position: absolute;
    inset: 0;
    transform: rotate(90deg);
}

.platform-flow-svg {
    width: 100%;
    height: 100%;
    overflow: visible;
}

/* ===== Desktop (768px+) ===== */
@media (min-width: 768px) {
    .platform-scheme-glass {
        padding: 4rem 5rem;
        border-radius: 3.5rem;
    }

    .platform-scheme-row {
        flex-direction: row;
        justify-content: space-between;
        gap: 3rem;
    }

    .platform-card {
        width: 20rem;
        min-height: 20rem;
        padding: 2.5rem;
        border-radius: 3rem;
        gap: 0.75rem;
    }

    .platform-flow-connector {
        flex: 1;
        min-width: 15rem;
        height: 12rem;
        width: auto;
        z-index: 1;
        margin: 0;
    }

    .platform-flow-svg-wrap {
        transform: none;
    }

    .platform-card-icon {
        width: 9rem;
        height: 9rem;
        border-radius: 2rem;
    }
}

/* ===== Tablet (640-767px) ===== */
@media (min-width: 640px) and (max-width: 767px) {
    .platform-card {
        width: 16rem;
        min-height: 16rem;
    }

    .platform-flow-connector {
        width: 10rem;
        height: 8rem;
    }
}

/* ===== Small mobile (<=480px) ===== */
@media (max-width: 480px) {
    .platform-card {
        width: 11rem;
        min-height: 11rem;
        padding: 1rem 1.25rem;
        gap: 0.4rem;
    }

    .platform-card-icon {
        width: 4.5rem;
        height: 4.5rem;
        border-radius: 1rem;
    }

    .platform-card-title {
        font-size: 1.0625rem;
    }

    .platform-card-badge {
        padding: 0.3rem 0.6rem;
        font-size: 0.625rem;
    }

    .platform-flow-connector {
        width: 4rem;
        height: 4rem;
        margin: 0.75rem 0;
    }
}

/* ===== Source: scale up ===== */
.platform-scheme-wrapper[data-flow-direction="ltr"] .platform-card-telegram.is-source,
.platform-scheme-wrapper[data-flow-direction="rtl"] .platform-card-max.is-source {
    transform: scale(1.05);
}

/* ===== Source: ping/radar effect ===== */
.platform-card-ping {
    position: absolute;
    inset: 0;
    border-radius: inherit;
    pointer-events: none;
    opacity: 0;
}

.platform-card-telegram.is-source .platform-card-ping-telegram,
.platform-card-max.is-source .platform-card-ping-max {
    opacity: 1;
    border: 2px solid rgba(56, 189, 248, 0.3);
    animation: platform-ping 3s cubic-bezier(0, 0, 0.2, 1) infinite;
}

.platform-card-max.is-source .platform-card-ping-max {
    border-color: rgba(251, 146, 60, 0.3);
}

.platform-card-ping::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    border: 2px solid rgba(56, 189, 248, 0.2);
    animation: platform-ping 3s cubic-bezier(0, 0, 0.2, 1) infinite;
    animation-delay: 0.7s;
}

.platform-card-max .platform-card-ping::after {
    border-color: rgba(251, 146, 60, 0.2);
}

@keyframes platform-ping {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(1.05); opacity: 0; }
}

/* ===== Source/target ring & shadow ===== */
.platform-card-telegram.is-source {
    box-shadow: 0 25px 50px -12px rgba(41, 182, 246, 0.4), 0 0 0 4px rgba(56, 189, 248, 0.15);
    border-color: rgba(56, 189, 248, 0.5);
}

.platform-card-telegram.is-target {
    box-shadow: 0 25px 50px -12px rgba(56, 189, 248, 0.2), 0 0 0 4px rgba(56, 189, 248, 0.08);
    border-color: rgba(56, 189, 248, 0.3);
}

.platform-card-max.is-source {
    box-shadow: 0 25px 50px -12px rgba(251, 146, 60, 0.4), 0 0 0 4px rgba(251, 146, 60, 0.15);
    border-color: rgba(251, 146, 60, 0.5);
}

.platform-card-max.is-target {
    box-shadow: 0 25px 50px -12px rgba(251, 146, 60, 0.2), 0 0 0 4px rgba(251, 146, 60, 0.08);
    border-color: rgba(251, 146, 60, 0.3);
}

/* ===== Card backgrounds ===== */
.platform-card-bg-grid {
    position: absolute;
    inset: 0;
    opacity: 0.03;
    pointer-events: none;
    border-radius: inherit;
    overflow: hidden;
}

.platform-card-bg-telegram {
    background-image: linear-gradient(#0288D1 1px, transparent 1px), linear-gradient(90deg, #0288D1 1px, transparent 1px);
    background-size: 20px 20px;
}

.platform-card-bg-max {
    background-image: linear-gradient(#EF6C00 1px, transparent 1px), linear-gradient(90deg, #EF6C00 1px, transparent 1px);
    background-size: 20px 20px;
}

.platform-card-bg-gradient {
    position: absolute;
    inset: 0;
    pointer-events: none;
    border-radius: inherit;
    overflow: hidden;
}

.platform-card-bg-gradient-telegram {
    background: linear-gradient(to bottom right, rgba(56, 189, 248, 0.08), transparent, rgba(56, 189, 248, 0.05));
}

.platform-card-bg-gradient-max {
    background: linear-gradient(to bottom left, rgba(251, 146, 60, 0.08), transparent, rgba(251, 146, 60, 0.05));
}

.platform-card.is-source .platform-card-bg-gradient {
    opacity: 1;
}

.platform-card:not(.is-source):not(.is-target) .platform-card-bg-gradient {
    opacity: 0.5;
}

/* ===== Card icons ===== */
.platform-card-icon-wrap {
    position: relative;
    margin-bottom: 0;
    z-index: 1;
    background: transparent;
    flex-shrink: 0;
}

.platform-card-icon {
    width: 7rem;
    height: 7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 1.25rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.platform-card-icon-telegram {
    position: relative;
    background: #229ED9;
    box-shadow: 0 25px 50px -12px rgba(41, 182, 246, 0.4);
}

.platform-card-icon-max {
    position: relative;
    background: linear-gradient(135deg, #7c3aed 0%, #ec4899 100%);
    box-shadow: 0 25px 50px -12px rgba(124, 58, 237, 0.4);
}

.platform-card-telegram.is-source .platform-card-icon-telegram {
    animation: platform-icon-float 4s ease-in-out infinite;
    box-shadow: 0 25px 50px -12px rgba(41, 182, 246, 0.5);
}

.platform-card-max.is-source .platform-card-icon {
    animation: platform-icon-float 4s ease-in-out infinite 0.2s;
}

@keyframes platform-icon-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.platform-card-icon-inner {
    position: absolute;
    inset: 0;
    border-radius: inherit;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.platform-card-icon-telegram-img,
.platform-card-icon-max-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    background: transparent;
}

@media (max-width: 767px) {
    .platform-card-icon-telegram-img,
    .platform-card-icon-max-img {
        width: 100%;
        height: 100%;
    }
}

.platform-card-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-slate-800, #1e293b);
    margin: 0;
    letter-spacing: -0.02em;
    z-index: 1;
    flex-shrink: 0;
}

/* ===== Badges ===== */
.platform-card-badge {
    display: none;
    padding: 0.35rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    z-index: 1;
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.platform-card-telegram .platform-badge-source,
.platform-card-max .platform-badge-target {
    display: inline-block;
}

.platform-scheme-wrapper[data-flow-direction="rtl"] .platform-card-telegram .platform-badge-source,
.platform-scheme-wrapper[data-flow-direction="rtl"] .platform-card-max .platform-badge-target {
    display: none;
}

.platform-scheme-wrapper[data-flow-direction="rtl"] .platform-card-telegram .platform-badge-target,
.platform-scheme-wrapper[data-flow-direction="rtl"] .platform-card-max .platform-badge-source {
    display: inline-block;
}

.platform-card-telegram .platform-badge-source {
    background: rgba(56, 189, 248, 0.2);
    color: #0284C7;
}

.platform-card-telegram .platform-badge-target {
    background: rgba(148, 163, 184, 0.2);
    color: #64748b;
}

.platform-card-max .platform-badge-target {
    background: rgba(251, 146, 60, 0.15);
    color: #EA580C;
}

.platform-card-max .platform-badge-source {
    background: rgba(251, 146, 60, 0.2);
    color: #EA580C;
}

.platform-badge-idle {
    display: none !important;
}

/* ===== Flow line styles ===== */
.platform-flow-bed {
    opacity: 0.2;
}

.platform-flow-core {
    opacity: 0.6;
}

.platform-flow-dash {
    opacity: 0.6;
}

.platform-scheme-wrapper[data-flow-direction="rtl"] .platform-flow-bed {
    stroke: url(#fluidGradientRtl);
}

.platform-scheme-wrapper[data-flow-direction="rtl"] .platform-flow-core {
    stroke: #FB923C;
}

/* Particles - show/hide by direction */
.platform-flow-particles-rtl {
    display: none;
}

.platform-scheme-wrapper[data-flow-direction="rtl"] .platform-flow-particles-ltr {
    display: none;
}

.platform-scheme-wrapper[data-flow-direction="rtl"] .platform-flow-particles-rtl {
    display: block;
}

/* ===== Caption ===== */
.platform-scheme-caption-wrap {
    margin-top: 2rem;
    text-align: center;
    min-height: 2rem;
}

.platform-scheme-caption {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin: 0;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-slate-500, #64748b);
}

.platform-scheme-caption.mono {
    font-family: var(--font-mono), monospace;
}

.platform-flow-dot {
    display: inline-block;
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    background: #38BDF8;
    animation: platform-dot-pulse 2s ease-in-out infinite;
}

.platform-scheme-wrapper[data-flow-direction="rtl"] .platform-flow-dot-telegram {
    background: #FB923C;
}

@keyframes platform-dot-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.1); }
}

/* ===== Benefits ===== */
.cross-platform-benefits {
    margin-top: 3rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.cross-platform-benefit {
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(15px);
    border-radius: 1.25rem;
    border: 1px solid var(--color-orange-100, rgba(249, 115, 22, 0.2));
    transition: all 0.7s;
    position: relative;
    overflow: hidden;
}

.cross-platform-benefit:hover {
    box-shadow: var(--shadow-2xl, 0 25px 50px -12px rgb(0 0 0 / 0.25));
    transform: translateY(-0.5rem);
}

.benefit-bg-icon {
    position: absolute;
    top: 0;
    right: 0;
    padding: 1rem;
    opacity: 0.03;
    transition: all 0.7s;
}

.cross-platform-benefit:hover .benefit-bg-icon {
    opacity: 0.15;
    transform: scale(1.5) rotate(12deg);
}

.benefit-bg-icon svg {
    width: 96px;
    height: 96px;
}

.benefit-icon {
    width: 3rem;
    height: 3rem;
    background: var(--color-slate-900, #0f172a);
    color: var(--color-orange-500, #f97316);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    transition: all 0.7s;
    box-shadow: var(--shadow-2xl, 0 25px 50px -12px rgb(0 0 0 / 0.25));
    border: 1px solid rgba(249, 115, 22, 0.2);
}

.cross-platform-benefit:hover .benefit-icon {
    background: var(--color-orange-600, #ea580c);
    color: white;
    transform: rotate(360deg);
}

.benefit-icon svg {
    width: 20px;
    height: 20px;
}

.benefit-title {
    font-size: 1rem;
    font-weight: 900;
    color: var(--color-slate-900, #0f172a);
    margin-bottom: 0.5rem;
    letter-spacing: -0.05em;
    text-transform: uppercase;
    font-style: italic;
    transition: color 0.3s;
}

.cross-platform-benefit:hover .benefit-title {
    color: var(--color-orange-600, #ea580c);
}

.benefit-desc {
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--color-slate-500, #64748b);
    font-weight: 500;
    opacity: 0.7;
    transition: opacity 0.7s;
}

.cross-platform-benefit:hover .benefit-desc {
    opacity: 1;
}