/* Solution slide — Write a belief → scored portfolio */

.investor-solution {
    justify-content: safe center;
    align-items: center;
    gap: 0;
    padding-top: clamp(1.5rem, 2.8vh, 2.2rem);
    padding-bottom: clamp(2.2rem, 4vh, 3.2rem);
}

.solution-head {
    width: 100%;
    max-width: min(860px, 100%);
    text-align: center;
    margin: 0 auto 0;
    padding-bottom: clamp(2.4rem, 5.2vh, 3.4rem);
    flex-shrink: 0;
}

.solution-head h2 {
    font-size: clamp(1.75rem, 3.1vw, 2.55rem);
    line-height: 1.12;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

.solution-head p {
    margin: 0.85rem auto 0;
    max-width: 38rem;
    color: var(--text-secondary);
    font-size: clamp(0.92rem, 1.15vw, 1.05rem);
    line-height: 1.5;
}

/* ── Three-panel product flow ───────────────────────────────────────── */

.solution-flow {
    width: min(1200px, 100%);
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: stretch;
    gap: clamp(0.55rem, 1.1vw, 0.85rem);
    min-height: 0;
}

.solution-flow__arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    align-self: center;
    width: 1.5rem;
    color: rgba(255, 255, 255, 0.26);
}

.solution-flow__arrow svg {
    width: 1.25rem;
    height: 1.25rem;
    display: block;
}

.solution-panel {
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: min(36vh, 330px);
    padding: 1.2rem 1.2rem 1.25rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.12);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.065) 0%, rgba(255, 255, 255, 0.028) 100%),
        rgba(14, 14, 14, 0.94);
    box-shadow: 0 18px 48px rgba(0, 0, 0, 0.3);
    transition: border-color 0.35s ease, box-shadow 0.35s ease, background 0.35s ease;
}

.solution-panel--write {
    border-color: rgba(var(--brand-orange-rgb), 0.32);
}

.solution-panel--build.is-filled {
    border-color: rgba(var(--btc-rgb), 0.28);
}

.solution-panel--score.is-filled {
    border-color: rgba(48, 209, 88, 0.26);
    background:
        linear-gradient(180deg, rgba(48, 209, 88, 0.07) 0%, rgba(255, 255, 255, 0.028) 52%),
        rgba(14, 14, 14, 0.94);
}

.solution-panel__top {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0.75rem;
    align-items: start;
    margin-bottom: 1.05rem;
}

.solution-panel__step {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.85rem;
    height: 1.85rem;
    border-radius: 999px;
    color: rgba(255, 255, 255, 0.9);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 0.7rem;
    font-weight: 700;
    flex-shrink: 0;
}

.solution-panel--write .solution-panel__step {
    color: #fff;
    background: rgba(var(--brand-orange-rgb), 0.18);
    border-color: rgba(var(--brand-orange-rgb), 0.35);
}

.solution-panel__title {
    display: block;
    color: var(--text-primary);
    font-size: clamp(1.02rem, 1.3vw, 1.18rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.solution-panel__copy {
    margin: 0.35rem 0 0;
    color: var(--text-secondary);
    font-size: clamp(0.8rem, 0.95vw, 0.9rem);
    line-height: 1.4;
}

/* Write panel */

.solution-compose {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    padding: 1rem 1.05rem 0.95rem;
    border-radius: calc(var(--radius-sm) - 2px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.32);
}

.solution-compose__text {
    flex: 1;
    margin: 0;
    min-height: 4.4rem;
    color: var(--text-primary);
    font-size: clamp(1.05rem, 1.35vw, 1.28rem);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.35;
}

.solution-compose__caret {
    display: inline-block;
    width: 2px;
    height: 1.05em;
    margin-left: 2px;
    vertical-align: -0.12em;
    background: transparent;
}

.solution-compose__caret.is-on {
    background: var(--brand-orange);
    animation: solution-caret 0.9s steps(1) infinite;
}

@keyframes solution-caret {
    50% { background: transparent; }
}

.solution-compose__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-top: 0.95rem;
    padding-top: 0.85rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.solution-compose__meta > span:first-child {
    color: var(--text-muted);
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 0.7rem;
}

.solution-compose__cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 0.95rem;
    border-radius: 999px;
    color: #fff;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    background: linear-gradient(120deg, var(--btc) 0%, var(--brand-orange) 100%);
    box-shadow: 0 10px 24px -12px rgba(var(--btc-rgb), 0.7);
    white-space: nowrap;
}

/* Build panel */

.solution-weights {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.68rem;
    min-height: 0;
    padding: 0.85rem 0.95rem;
    border-radius: calc(var(--radius-sm) - 2px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(0, 0, 0, 0.28);
}

.solution-weight {
    display: grid;
    grid-template-columns: 2.6rem minmax(0, 1fr) 2.4rem;
    align-items: center;
    gap: 0.55rem;
}

.solution-weight > span:first-child {
    color: var(--text-primary);
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 0.76rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.solution-weight > b {
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 0.76rem;
    font-weight: 600;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.solution-weight__track {
    height: 7px;
    border-radius: 99px;
    background: rgba(255, 255, 255, 0.08);
    overflow: hidden;
}

.solution-weight__track i {
    display: block;
    height: 100%;
    width: 0;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--btc), var(--brand-orange));
    transition: width 0.7s cubic-bezier(0.23, 1, 0.32, 1);
    transition-delay: calc(var(--i, 0) * 70ms + 80ms);
}

.solution-panel--build.is-filled .solution-weight__track i {
    width: var(--w, 20%);
}

/* Score panel */

.solution-score {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    padding: 0.95rem 1rem 0.85rem;
    border-radius: calc(var(--radius-sm) - 2px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(0, 0, 0, 0.28);
}

.solution-score__delta {
    display: block;
    margin-top: 0.15rem;
    color: var(--accent-success);
    font-size: clamp(2.35rem, 3.8vw, 3.2rem);
    font-weight: 900;
    letter-spacing: -0.045em;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.solution-score__sub {
    display: block;
    margin-top: 0.5rem;
    color: var(--text-secondary);
    font-size: clamp(0.82rem, 1vw, 0.94rem);
    font-weight: 600;
    letter-spacing: -0.01em;
}

.solution-score__chart {
    width: 100%;
    height: auto;
    margin-top: auto;
    min-height: 3.8rem;
    overflow: visible;
}

.solution-score__spy {
    fill: none;
    stroke: rgba(255, 255, 255, 0.28);
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-dasharray: 3 4;
}

.solution-score__view {
    fill: none;
    stroke: var(--accent-success);
    stroke-width: 2.4;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 280;
    stroke-dashoffset: 280;
    transition: stroke-dashoffset 1s cubic-bezier(0.23, 1, 0.32, 1) 0.15s;
}

.solution-panel--score.is-filled .solution-score__view {
    stroke-dashoffset: 0;
}

@media (max-width: 1100px) {
    .solution-flow {
        grid-template-columns: 1fr;
        max-width: 440px;
        gap: 0.7rem;
    }

    .solution-flow__arrow {
        width: 100%;
        height: 1.2rem;
        transform: rotate(90deg);
    }

    .solution-panel {
        min-height: auto;
    }

    .solution-compose__text {
        min-height: 3.5rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .solution-weight__track i,
    .solution-score__view,
    .solution-compose__caret {
        transition: none !important;
        animation: none !important;
    }

    .solution-weight__track i {
        width: var(--w, 20%);
    }

    .solution-score__view {
        stroke-dashoffset: 0;
    }
}