.simply-sign-page {
    --primary-color: #0f766e;
    --accent-color: #f59e0b;
    background: #ffffff;
    color: #0f172a;
}

@media (prefers-color-scheme: dark) {
    .simply-sign-page,
    .simply-sign-page * {
        color: inherit !important;
        -webkit-text-fill-color: inherit !important;
    }

    .simply-sign-page .sign-hero,
    .simply-sign-page .sign-hero * {
        color: #ecfeff !important;
        -webkit-text-fill-color: #ecfeff !important;
    }
}

.hero.solution-hero.sign-hero {
    background:
        radial-gradient(circle at 18% 78%, rgba(20, 184, 166, 0.16) 0%, transparent 46%),
        radial-gradient(circle at 82% 18%, rgba(245, 158, 11, 0.12) 0%, transparent 38%),
        linear-gradient(135deg, #092325 0%, #0d3740 56%, #13263e 100%) !important;
}

.sign-hero {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at 18% 78%, rgba(20, 184, 166, 0.16) 0%, transparent 46%),
        radial-gradient(circle at 82% 18%, rgba(245, 158, 11, 0.12) 0%, transparent 38%),
        linear-gradient(135deg, #092325 0%, #0d3740 56%, #13263e 100%);
    color: #ecfeff;
    height: 70vh;
    min-height: 600px;
}

.sign-hero::before,
.sign-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.sign-hero::before {
    background:
        radial-gradient(circle at 20% 80%, rgba(45, 212, 191, 0.12) 0%, transparent 52%),
        radial-gradient(circle at 80% 20%, rgba(251, 191, 36, 0.12) 0%, transparent 48%),
        radial-gradient(circle at 44% 42%, rgba(56, 189, 248, 0.08) 0%, transparent 44%);
    z-index: 1;
}

.sign-hero::after {
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 1;
    animation: sign-grid-move 20s linear infinite;
}

@keyframes sign-grid-move {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

.sign-hero .hero-layout {
    position: relative;
    z-index: 10;
    display: grid;
    grid-template-columns: minmax(420px, 1.02fr) minmax(480px, 1fr);
    gap: 2.25rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 4vw, 2.5rem);
}

.sign-hero .hero-content {
    position: relative;
    z-index: 10;
    color: white;
    max-width: 760px;
}

.sign-hero .solution-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    margin-bottom: 1.5rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.08);
    color: #f8fafc;
    font-weight: 600;
    letter-spacing: 0.01em;
    backdrop-filter: blur(10px);
}

.sign-hero .solution-badge svg {
    color: #fbbf24;
}

.sign-hero .hero-title,
.sign-hero .hero-title * {
    color: #ffffff !important;
    -webkit-text-fill-color: #ffffff !important;
    font-family: "Avenir Next", "Avenir Next LT Pro", "Helvetica Neue", Inter, sans-serif !important;
    font-weight: 100 !important;
    font-size: clamp(2.2rem, 4vw, 3.2rem) !important;
    line-height: 1.08 !important;
    letter-spacing: -0.03em;
    margin-bottom: 1.35rem !important;
    text-shadow: none !important;
}

.sign-hero .hero-subtitle {
    color: #d7fbff;
    font-family: "Avenir Next", "Avenir Next LT Pro", "Helvetica Neue", Inter, sans-serif;
    font-size: 1.15rem;
    font-weight: 400;
    line-height: 1.7;
    max-width: 650px;
    margin: 0 0 1rem;
}

.sign-hero .hero-overview {
    margin-top: 0.9rem;
    max-width: 760px;
    line-height: 1.74;
    color: rgba(236, 254, 255, 0.92);
    font-family: "Avenir Next", "Avenir Next LT Pro", "Helvetica Neue", Inter, sans-serif;
    font-weight: 400;
}

.sign-hero .hero-overview strong {
    font-weight: 700;
}

.sign-hero .hero-cta {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 1.7rem;
}

.simply-sign-page .cta-primary {
    background: linear-gradient(135deg, #0f766e, #0ea5a4);
    color: #f0fdfa !important;
    border: none;
    padding: 0.9rem 1.4rem;
    border-radius: 12px;
    font-weight: 700;
    box-shadow: 0 12px 36px rgba(15, 118, 110, 0.28);
}

.sign-hero .cta-primary:hover {
    box-shadow: 0 0 38px rgba(20, 184, 166, 0.38);
    transform: translateY(-2px);
}

.sign-hero .hero-visual {
    position: relative;
    z-index: 5;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    padding: 1rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.22);
    backdrop-filter: blur(10px);
}

#sign-hero-viz {
    width: 100%;
    height: 360px;
    border-radius: 14px;
    background:
        radial-gradient(circle at 32% 22%, rgba(20, 184, 166, 0.14), transparent 42%),
        radial-gradient(circle at 74% 76%, rgba(245, 158, 11, 0.1), transparent 44%),
        #0b1726;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

@media (max-width: 960px) {
    .sign-hero {
        height: auto;
        min-height: auto;
        padding-bottom: 3rem;
    }

    .sign-hero .hero-layout {
        grid-template-columns: 1fr;
        gap: 1.75rem;
        padding: 0 1.5rem;
    }

    .sign-hero .hero-content {
        max-width: 720px;
        margin: 0 auto;
        text-align: center;
    }

    .sign-hero .hero-visual {
        order: 2;
        width: min(100%, 560px);
        margin: 0 auto;
    }
}

@media (max-width: 640px) {
    .sign-hero {
        padding-top: 5.5rem;
        padding-bottom: 2.5rem;
    }

    .sign-hero .hero-layout {
        padding: 0 1.25rem;
    }

    .sign-hero .hero-visual {
        padding: 0.75rem;
        border-radius: 16px;
    }

    .sign-hero .hero-title,
    .sign-hero .hero-title * {
        font-size: clamp(2rem, 7vw, 2.6rem) !important;
    }

    .sign-hero .hero-subtitle {
        font-size: 1rem;
        line-height: 1.6;
    }

    #sign-hero-viz {
        height: 240px;
    }
}

.sign-section {
    padding: clamp(3rem, 5vw, 4.25rem) 0;
}

.sign-section h2 {
    font-size: clamp(1.9rem, 3vw, 2.45rem);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.section-lead {
    max-width: 860px;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 2rem;
}

.section-lead strong {
    color: var(--text-primary);
}

.sign-section--muted {
    background: #f8fafc;
}

.sign-section--dark {
    background:
        radial-gradient(circle at 15% 18%, rgba(45, 212, 191, 0.16), transparent 36%),
        linear-gradient(135deg, #0b1726 0%, #10243d 52%, #122c2e 100%);
    color: #ecfeff;
}

.sign-section--dark h2,
.sign-section--dark .section-lead,
.sign-section--dark .section-lead strong {
    color: #ecfeff;
}

.mode-grid,
.capability-grid,
.ops-grid,
.evidence-grid,
.reason-grid,
.faq-grid {
    display: grid;
    gap: 1.15rem;
}

.mode-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.capability-grid,
.ops-grid,
.evidence-grid,
.reason-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.mode-card,
.capability-card,
.ops-card,
.evidence-card,
.reason-card,
.use-case-card {
    border-radius: 18px;
    border: 1px solid rgba(15, 23, 42, 0.08);
    background: #ffffff;
    padding: 1.35rem;
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.06);
}

.mode-card h3,
.capability-card h3,
.ops-card h3,
.evidence-card h3,
.reason-card h3,
.use-case-card h3 {
    margin: 0 0 0.55rem;
    font-size: 1.15rem;
}

.mode-card p,
.capability-card p,
.ops-card p,
.evidence-card p,
.reason-card p,
.use-case-card p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.7;
}

.card-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.7rem;
    margin-bottom: 0.9rem;
    border-radius: 999px;
    background: rgba(14, 116, 144, 0.08);
    color: #0f766e;
    font-size: 0.85rem;
    font-weight: 700;
}

.feature-list {
    display: grid;
    gap: 0.7rem;
    margin: 0.95rem 0 0;
    padding: 0;
}

.feature-list li {
    list-style: none;
    display: flex;
    align-items: flex-start;
    gap: 0.7rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

.feature-list li::before {
    content: "";
    width: 9px;
    height: 9px;
    margin-top: 0.42rem;
    border-radius: 50%;
    flex-shrink: 0;
    background: linear-gradient(135deg, #0ea5a4, #f59e0b);
}

.ops-card .feature-list,
.use-case-card .feature-list {
    margin-top: 0.8rem;
}

.sign-section--dark .evidence-card {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: none;
}

.sign-section--dark .evidence-card p,
.sign-section--dark .evidence-card li,
.sign-section--dark .feature-list li {
    color: rgba(236, 254, 255, 0.88);
}

.sign-section--dark .feature-list li::before {
    background: linear-gradient(135deg, #5eead4, #fbbf24);
}

.use-case-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
    gap: 1.15rem;
}

.faq-section {
    background: #f8fafc;
}

.faq-section .section-lead {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.faq-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    max-width: 1120px;
    margin: 0 auto;
}

.faq-item {
    background: #ffffff;
    border-radius: 16px;
    border: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
    padding: 1.45rem 1.6rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.faq-item[open] {
    border-color: rgba(15, 118, 110, 0.3);
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.1);
}

.faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--text-primary);
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: "+";
    font-size: 1.2rem;
    font-weight: 700;
    color: #0f766e;
}

.faq-item[open] summary::after {
    content: "-";
}

.faq-item p {
    margin: 1rem 0 0;
    color: var(--text-secondary);
    line-height: 1.72;
}

.cta-panel {
    background: linear-gradient(135deg, #0f172a, #0f766e);
    color: #ecfeff;
    padding: clamp(2rem, 3vw, 2.5rem);
    border-radius: 18px;
    display: grid;
    gap: 1rem;
    align-items: center;
    grid-template-columns: minmax(0, 1.4fr) auto;
}

.cta-panel h2,
.cta-panel p {
    margin: 0;
    color: #ecfeff;
}

.cta-panel p {
    opacity: 0.9;
    line-height: 1.7;
}

@media (max-width: 980px) {
    .use-case-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .cta-panel {
        grid-template-columns: 1fr;
    }
}