/* ============================================
   LuxTax 2025 - Insight Diagram Styles
   ============================================ */

:root {
    --diagram-ink: #0f2540;
    --diagram-slate: #5f7087;
    --diagram-line: rgba(30, 58, 95, 0.14);
    --diagram-wash: rgba(255, 255, 255, 0.74);
    --diagram-panel: rgba(255, 255, 255, 0.88);
    --diagram-glow: 0 24px 60px rgba(14, 33, 58, 0.14);
}

.diagrams-hero {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at 12% 22%, rgba(232, 168, 56, 0.28), transparent 18%),
        radial-gradient(circle at 88% 18%, rgba(110, 170, 255, 0.26), transparent 24%),
        linear-gradient(135deg, #132b47 0%, #0b1b30 60%, #091523 100%);
}

.diagrams-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 28px 28px;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 92%);
    pointer-events: none;
}

.hero-diagram-strip {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    max-width: 980px;
    margin: 24px auto 0;
}

.hero-metric {
    padding: 18px 18px 16px;
    text-align: left;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.08);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
}

.hero-metric strong {
    display: block;
    margin-bottom: 6px;
    font-size: 26px;
    font-weight: 800;
    color: white;
}

.hero-metric span {
    display: block;
    font-size: 13px;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.82);
}

.diagram-hero-actions {
    position: relative;
    z-index: 1;
    margin-top: 22px;
    display: flex;
    justify-content: center;
}

.diagram-section {
    position: relative;
    padding: 40px 0 12px;
}

.diagram-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at top left, rgba(232, 168, 56, 0.08), transparent 22%),
        radial-gradient(circle at bottom right, rgba(41, 127, 196, 0.08), transparent 18%);
    pointer-events: none;
}

.diagram-grid {
    position: relative;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
    align-items: stretch;
}

.diagram-card {
    position: relative;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.92) 0%, rgba(250, 252, 255, 0.88) 100%);
    border: 1px solid rgba(217, 226, 236, 0.9);
    border-radius: 24px;
    box-shadow: var(--diagram-glow);
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.diagram-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 24px;
    right: 24px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(15, 37, 64, 0.16), transparent);
}

.diagram-card-header {
    padding: 28px 28px 8px;
}

.diagram-card-header h2 {
    font-size: 26px;
    line-height: 1.22;
    color: var(--diagram-ink);
    letter-spacing: -0.03em;
    margin-bottom: 10px;
}

.diagram-card-header p {
    color: var(--diagram-slate);
    font-size: 15px;
    line-height: 1.65;
}

.diagram-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
    padding: 6px 12px;
    border-radius: 999px;
    background: linear-gradient(90deg, #edf4fd 0%, #fff5de 100%);
    color: var(--diagram-ink);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.diagram-tag::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent) 0%, var(--primary-light) 100%);
}

.flow-diagram,
.compare-diagram,
.cap-diagram,
.equation-diagram,
.timeline-diagram,
.checklist-diagram {
    padding: 20px 28px 28px;
}

.flow-diagram {
    position: relative;
}

.flow-start {
    width: fit-content;
    max-width: 100%;
    margin: 0 auto;
    padding: 14px 20px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
    color: white;
    font-weight: 700;
    box-shadow: 0 14px 26px rgba(29, 67, 107, 0.24);
}

.flow-arrow {
    position: relative;
    width: 2px;
    height: 36px;
    margin: 0 auto;
    background: linear-gradient(180deg, rgba(42, 90, 140, 0.24) 0%, rgba(232, 168, 56, 0.9) 100%);
}

.flow-arrow::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -1px;
    width: 12px;
    height: 12px;
    border-right: 2px solid var(--accent-dark);
    border-bottom: 2px solid var(--accent-dark);
    transform: translateX(-50%) rotate(45deg);
}

.flow-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.flow-node {
    position: relative;
    padding: 18px 18px 18px 52px;
    min-height: 110px;
    border: 1px solid var(--diagram-line);
    border-radius: 18px;
    background: var(--diagram-wash);
    color: var(--diagram-ink);
    font-weight: 700;
    line-height: 1.55;
}

.flow-node::before {
    content: "?";
    position: absolute;
    top: 18px;
    left: 18px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: #edf4fd;
    color: var(--primary);
    font-size: 13px;
    font-weight: 800;
}

.flow-outcomes {
    display: grid;
    gap: 12px;
}

.flow-result {
    position: relative;
    padding: 18px 18px 18px 56px;
    border-radius: 18px;
    font-weight: 700;
    line-height: 1.55;
    color: white;
}

.flow-result::before {
    position: absolute;
    left: 18px;
    top: 18px;
    width: 26px;
    height: 26px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.18);
    font-weight: 800;
}

.flow-yes {
    background: linear-gradient(135deg, #2d8a4e 0%, #21673b 100%);
}

.flow-yes::before {
    content: "OK";
}

.flow-no {
    background: linear-gradient(135deg, #c53030 0%, #912222 100%);
}

.flow-no::before {
    content: "X";
}

.compare-diagram {
    display: grid;
    grid-template-columns: 1fr 88px 1fr;
    gap: 16px;
    align-items: stretch;
}

.compare-column {
    position: relative;
    padding: 22px;
    border: 1px solid var(--diagram-line);
    border-radius: 22px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.94) 0%, rgba(244, 248, 252, 0.94) 100%);
}

.compare-column::after {
    content: "";
    position: absolute;
    inset: auto 22px 0;
    height: 4px;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(232, 168, 56, 0.18), rgba(26, 58, 92, 0.34));
}

.compare-column h3 {
    margin-bottom: 14px;
    color: var(--diagram-ink);
    font-size: 20px;
}

.compare-column ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.compare-column li {
    position: relative;
    padding: 0 0 0 22px;
    margin-bottom: 12px;
    color: var(--text);
    line-height: 1.65;
}

.compare-column li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent) 0%, var(--primary-light) 100%);
}

.compare-divider {
    position: relative;
    display: grid;
    place-items: center;
    color: var(--diagram-ink);
    font-size: 15px;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.compare-divider::before,
.compare-divider::after {
    content: "";
    position: absolute;
    left: 50%;
    width: 1px;
    background: linear-gradient(180deg, transparent, rgba(15, 37, 64, 0.2), transparent);
    transform: translateX(-50%);
}

.compare-divider::before {
    top: 0;
    bottom: calc(50% + 26px);
}

.compare-divider::after {
    top: calc(50% + 26px);
    bottom: 0;
}

.compare-divider span {
    display: inline-grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, #132b47 0%, #325f90 100%);
    color: white;
    box-shadow: 0 12px 22px rgba(19, 43, 71, 0.22);
}

.compare-footer {
    margin-top: 18px;
    padding: 12px 14px;
    border-radius: 14px;
    font-size: 14px;
    font-weight: 700;
}

.compare-good {
    background: #fff6e5;
    color: #8e5600;
}

.compare-better {
    background: #eaf8ee;
    color: #21673b;
}

.cap-diagram {
    position: relative;
    padding-top: 26px;
}

.cap-total {
    position: relative;
    width: min(360px, 100%);
    margin: 0 auto 28px;
    padding: 28px 22px;
    border-radius: 50%;
    aspect-ratio: 1.55 / 1;
    display: grid;
    place-items: center;
    text-align: center;
    background:
        radial-gradient(circle at center, rgba(255, 255, 255, 0.24) 0%, rgba(255, 255, 255, 0.04) 48%, transparent 52%),
        linear-gradient(135deg, #123150 0%, #2a5a8c 50%, #e8a838 100%);
    color: white;
    box-shadow: 0 24px 34px rgba(26, 58, 92, 0.2);
}

.cap-total strong {
    display: block;
    font-size: 34px;
    line-height: 1.05;
    letter-spacing: -0.04em;
}

.cap-total span {
    display: block;
    margin-top: 6px;
    font-size: 14px;
    opacity: 0.92;
}

.cap-branches {
    position: relative;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.cap-branches::before {
    content: "";
    position: absolute;
    top: -18px;
    left: 16.5%;
    right: 16.5%;
    height: 26px;
    border-top: 2px solid rgba(26, 58, 92, 0.16);
    border-left: 2px solid rgba(26, 58, 92, 0.16);
    border-right: 2px solid rgba(26, 58, 92, 0.16);
    border-radius: 18px 18px 0 0;
}

.cap-branch {
    position: relative;
    padding: 20px 18px;
    border: 1px solid var(--diagram-line);
    border-radius: 20px;
    background: var(--diagram-panel);
    text-align: center;
}

.cap-branch::before {
    content: "";
    position: absolute;
    top: -18px;
    left: 50%;
    width: 2px;
    height: 18px;
    background: rgba(26, 58, 92, 0.16);
    transform: translateX(-50%);
}

.cap-icon {
    display: inline-grid;
    place-items: center;
    width: 42px;
    height: 42px;
    margin-bottom: 12px;
    border-radius: 14px;
    background: linear-gradient(135deg, #edf4fd 0%, #fff2d3 100%);
    color: var(--diagram-ink);
    font-weight: 800;
}

.cap-branch h3 {
    margin-bottom: 8px;
    color: var(--diagram-ink);
    font-size: 18px;
}

.cap-branch p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--diagram-slate);
}

.cap-warning {
    margin-top: 18px;
    padding: 15px 16px;
    border-radius: 16px;
    background: linear-gradient(90deg, #fff2da 0%, #fff8ed 100%);
    border: 1px solid rgba(212, 118, 10, 0.18);
    color: #8e5600;
    font-weight: 700;
    text-align: center;
}

.equation-diagram {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 12px;
    align-items: stretch;
}

.equation-part {
    position: relative;
    padding: 22px 20px;
    border: 1px solid var(--diagram-line);
    border-radius: 22px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(243, 247, 251, 0.96) 100%);
    text-align: center;
    display: grid;
    align-content: center;
}

.equation-label {
    display: block;
    margin-bottom: 8px;
    font-size: 12px;
    color: var(--diagram-slate);
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.equation-part strong {
    font-size: 32px;
    letter-spacing: -0.03em;
    color: var(--diagram-ink);
}

.equation-result {
    background: linear-gradient(135deg, #edf9f0 0%, #f4fff7 100%);
    box-shadow: inset 0 0 0 1px rgba(45, 138, 78, 0.12);
}

.equation-operator {
    display: grid;
    place-items: center;
    min-width: 34px;
    font-size: 34px;
    font-weight: 800;
    color: var(--accent-dark);
}

.timeline-diagram {
    position: relative;
    display: grid;
    gap: 16px;
}

.timeline-diagram::before {
    content: "";
    position: absolute;
    left: 162px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: linear-gradient(180deg, rgba(26, 58, 92, 0.12), rgba(26, 58, 92, 0.3), rgba(26, 58, 92, 0.12));
}

.timeline-row {
    display: grid;
    grid-template-columns: 146px 22px 1fr;
    gap: 14px;
    align-items: center;
}

.timeline-date {
    font-size: 13px;
    line-height: 1.45;
    font-weight: 700;
    color: var(--diagram-slate);
    text-align: right;
}

.timeline-dot {
    position: relative;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 6px solid white;
    box-shadow: 0 0 0 1px rgba(26, 58, 92, 0.1);
}

.timeline-bar {
    padding: 16px 18px;
    border-radius: 18px;
    color: white;
    font-weight: 800;
    letter-spacing: -0.01em;
}

.timeline-low {
    background: linear-gradient(90deg, #6b8097 0%, #8195ab 100%);
}

.timeline-mid {
    background: linear-gradient(90deg, #2f638d 0%, #4683b6 100%);
}

.timeline-high {
    background: linear-gradient(90deg, #28765d 0%, #2fa57d 100%);
}

.timeline-full {
    background: linear-gradient(90deg, var(--accent-dark) 0%, var(--accent) 100%);
    color: var(--primary-dark);
}

.checklist-diagram {
    display: grid;
    gap: 14px;
}

.check-step {
    position: relative;
    display: grid;
    grid-template-columns: 50px 1fr;
    gap: 14px;
    align-items: center;
    padding: 18px 20px;
    border: 1px solid var(--diagram-line);
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(246, 249, 252, 0.95) 100%);
    font-weight: 700;
    color: var(--diagram-ink);
}

.check-step::after {
    content: "";
    position: absolute;
    left: 25px;
    top: calc(100% + 2px);
    width: 2px;
    height: 12px;
    background: rgba(26, 58, 92, 0.12);
}

.check-step:last-child::after {
    display: none;
}

.check-step span {
    display: inline-grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 12px;
    background: linear-gradient(135deg, #132b47 0%, #325f90 100%);
    color: white;
    font-size: 14px;
    box-shadow: 0 10px 18px rgba(19, 43, 71, 0.18);
}

@media (max-width: 1100px) {
    .hero-diagram-strip {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 960px) {
    .diagram-grid {
        grid-template-columns: 1fr;
    }

    .cap-branches,
    .compare-diagram {
        grid-template-columns: 1fr;
    }

    .compare-divider {
        min-height: 78px;
    }

    .compare-divider::before {
        bottom: calc(50% + 30px);
    }

    .compare-divider::after {
        top: calc(50% + 30px);
    }

    .equation-diagram {
        grid-template-columns: 1fr;
    }

    .equation-operator {
        min-height: 26px;
    }
}

@media (max-width: 768px) {
    .diagram-card-header {
        padding: 24px 22px 8px;
    }

    .diagram-card-header h2 {
        font-size: 22px;
    }

    .flow-diagram,
    .compare-diagram,
    .cap-diagram,
    .equation-diagram,
    .timeline-diagram,
    .checklist-diagram {
        padding: 18px 22px 24px;
    }

    .timeline-diagram::before {
        display: none;
    }

    .timeline-row,
    .flow-grid {
        grid-template-columns: 1fr;
    }

    .timeline-row {
        gap: 10px;
    }

    .timeline-date {
        text-align: left;
    }

    .timeline-dot {
        display: none;
    }

    .cap-branches::before,
    .cap-branch::before {
        display: none;
    }

    .diagram-hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
}