/* CollabSphere marketing landing page — fonts/colors from collabsphereplatform.com */

html {
    scroll-behavior: smooth;
}

body.cs-landing {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    margin: 0;
    font-family: var(--cs-font-body);
    font-size: var(--cs-font-size-body);
    font-weight: var(--cs-font-weight-body);
    line-height: var(--cs-line-height-body);
    background: var(--cs-color-page);
    color: var(--cs-color-body);
}

body.cs-landing ::selection {
    background: var(--cs-color-selection);
    color: var(--cs-color-on-dark);
}

body.cs-landing a {
    color: var(--cs-color-primary);
    text-decoration: none;
}

body.cs-landing a:hover {
    color: var(--cs-color-primary-hover);
}

.cs-l-mono {
    font-family: var(--cs-font-heading);
}

/* ---------- Buttons ---------- */

.cs-l-btn {
    display: inline-block;
    padding: 16px 30px;
    border-radius: var(--cs-button-radius);
    font-family: var(--cs-font-body);
    font-weight: var(--cs-font-weight-button);
    font-size: 16px;
    line-height: 1.2;
    transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

body.cs-landing a.cs-l-btn-primary,
body.cs-landing .cs-l-btn-primary {
    background: var(--cs-color-primary);
    color: var(--cs-color-on-dark);
}

body.cs-landing a.cs-l-btn-primary:hover,
body.cs-landing a.cs-l-btn-primary:focus,
body.cs-landing .cs-l-btn-primary:hover,
body.cs-landing .cs-l-btn-primary:focus {
    background: var(--cs-color-primary-hover);
    color: var(--cs-color-on-dark);
}

.cs-l-btn-outline {
    border: 1.5px solid var(--cs-color-border);
    color: var(--cs-color-heading);
    font-weight: 600;
}

.cs-l-btn-outline:hover {
    border-color: var(--cs-color-primary);
    color: var(--cs-color-primary);
}

.cs-l-btn-cream {
    background: var(--cs-color-page);
    color: var(--cs-color-primary);
    padding: 16px 34px;
}

.cs-l-btn-cream:hover {
    background: var(--cs-color-surface);
    color: var(--cs-color-primary-hover);
}

/* ---------- Nav ---------- */

.cs-l-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 22px 64px;
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 50;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.cs-l-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--cs-color-heading);
}

.cs-l-brand:hover {
    color: var(--cs-color-heading);
}

.cs-l-brand-mark {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    background: var(--cs-color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.cs-l-brand-mark span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--cs-color-surface);
}

.cs-l-brand-name {
    font-family: var(--cs-font-heading);
    font-weight: 600;
    font-size: 18px;
    letter-spacing: -0.01em;
}

.cs-l-nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.cs-l-nav-links a {
    font-size: 15px;
    font-weight: 500;
    color: var(--cs-color-heading);
}

.cs-l-nav-links a:hover {
    color: var(--cs-color-primary);
}

.cs-l-nav-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-left: auto;
}

.cs-l-nav-actions .cs-l-login {
    font-size: 15px;
    font-weight: 600;
}

.cs-l-nav-actions .cs-l-btn {
    font-size: 15px;
    padding: 10px 20px;
    border-radius: var(--cs-button-radius);
}

/* ---------- Shared section shells ---------- */

.cs-l-section {
    padding: 110px 64px;
    max-width: 1400px;
    margin: 0 auto;
}

.cs-l-eyebrow {
    font-family: var(--cs-font-heading);
    font-size: 13px;
    font-weight: 700;
    color: var(--cs-color-primary);
    letter-spacing: 0.06em;
    margin-bottom: 14px;
}

.cs-l-h2 {
    font-family: var(--cs-font-heading);
    font-size: 42px;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin: 0;
    color: var(--cs-color-heading);
}

/* ---------- Hero ---------- */

.cs-l-hero {
    padding: 110px 64px 90px;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.cs-l-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--cs-color-surface);
    padding: 7px 14px;
    border-radius: 100px;
    font-family: var(--cs-font-heading);
    font-size: 13px;
    font-weight: 600;
    color: var(--cs-color-primary);
    margin-bottom: 28px;
}

.cs-l-hero-badge span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--cs-color-primary);
}

.cs-l-hero h1 {
    font-family: var(--cs-font-heading);
    font-size: 64px;
    line-height: 1.04;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin: 0 0 28px;
    color: var(--cs-color-heading);
}

.cs-l-hero-sub {
    font-size: 19px;
    line-height: 1.55;
    color: var(--cs-color-body);
    max-width: 520px;
    margin: 0 0 40px;
}

.cs-l-hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.cs-l-hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-top: 56px;
}

.cs-l-stat-num {
    font-size: 30px;
    font-weight: 800;
    color: var(--cs-color-primary);
}

.cs-l-stat-label {
    font-size: 13px;
    color: var(--cs-color-muted);
    margin-top: 4px;
}

.cs-l-hero-media {
    position: relative;
}

/* ---------- Image placeholders (until real assets land) ---------- */

.cs-l-imgslot {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    border-radius: 20px;
    background: linear-gradient(145deg, var(--cs-color-surface) 0%, var(--cs-color-active-soft) 55%, var(--cs-color-on-dark-muted) 100%);
    color: var(--cs-color-primary);
    font-family: var(--cs-font-heading);
    font-size: 13px;
    text-align: center;
    padding: 24px;
    box-sizing: border-box;
}

.cs-l-imgslot-hero {
    aspect-ratio: 4 / 5;
    box-shadow: 0 30px 60px -20px rgba(var(--cs-color-primary-rgb), 0.25);
    background: var(--cs-color-page);
    border: 1px solid var(--cs-color-border);
    padding: 28px;
    overflow: hidden;
}

.cs-l-imgslot-hero img {
    max-width: 100%;
    max-height: 100%;
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.cs-l-imgslot-square {
    aspect-ratio: 1 / 1;
    background: var(--cs-color-page);
    border: 1px solid var(--cs-color-border);
    padding: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px -20px rgba(var(--cs-color-primary-rgb), 0.18);
}

.cs-l-imgslot-square img {
    max-width: 100%;
    max-height: 100%;
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.cs-l-imgslot-wide {
    aspect-ratio: 5 / 4;
    background: var(--cs-color-page);
    border: 1px solid var(--cs-color-border);
    padding: 0;
    overflow: hidden;
    box-shadow: 0 20px 40px -20px rgba(var(--cs-color-primary-rgb), 0.18);
}

.cs-l-imgslot-wide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ---------- Logo strip ---------- */

.cs-l-logostrip {
    padding: 36px 64px;
    border-top: 1px solid var(--cs-color-border);
    border-bottom: 1px solid var(--cs-color-border);
}

.cs-l-logostrip-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 24px;
}

.cs-l-logostrip-label {
    font-size: 13px;
    color: var(--cs-color-muted);
    font-weight: 600;
    letter-spacing: 0.04em;
}

.cs-l-logos {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
    align-items: center;
}

.cs-l-logos img {
    height: 40px;
    width: auto;
    max-width: 120px;
    object-fit: contain;
}

/* ---------- Features ---------- */

.cs-l-features-head {
    max-width: 640px;
    margin-bottom: 64px;
}

.cs-l-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.cs-l-card {
    background: var(--cs-color-page);
    border: 1px solid var(--cs-color-border);
    border-radius: 16px;
    padding: 32px;
}

.cs-l-card h3 {
    font-size: 19px;
    font-weight: 700;
    margin: 0 0 10px;
}

.cs-l-card p {
    font-size: 15px;
    line-height: 1.6;
    color: var(--cs-color-body);
    margin: 0;
}

.cs-l-icon-tile {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: var(--cs-color-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 22px;
}

.cs-l-icon-circle {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid var(--cs-color-primary);
}

.cs-l-icon-diamond {
    width: 18px;
    height: 18px;
    background: var(--cs-color-primary);
    transform: rotate(45deg);
}

.cs-l-icon-square {
    width: 16px;
    height: 16px;
    border: 2px solid var(--cs-color-primary);
    border-radius: 4px;
}

/* ---------- How it works ---------- */

.cs-l-how {
    padding: 100px 64px;
    background: var(--cs-color-footer);
}

.cs-l-how-inner {
    max-width: 1400px;
    margin: 0 auto;
}

.cs-l-how .cs-l-eyebrow {
    color: var(--cs-color-on-dark-muted);
}

.cs-l-how .cs-l-h2 {
    color: var(--cs-color-page);
    max-width: 600px;
    margin-bottom: 60px;
}

.cs-l-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.cs-l-step-num {
    font-family: var(--cs-font-heading);
    font-size: 14px;
    color: var(--cs-color-surface);
    margin-bottom: 16px;
}

.cs-l-steps h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--cs-color-page);
    margin: 0 0 10px;
}

.cs-l-steps p {
    font-size: 15px;
    line-height: 1.6;
    color: var(--cs-color-on-dark-muted);
    margin: 0;
}

/* ---------- Sectors ---------- */

.cs-l-sectors {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 60px;
    align-items: center;
}

.cs-l-sectors .cs-l-h2 {
    font-size: 38px;
    margin-bottom: 24px;
}

.cs-l-checklist {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px 24px;
}

.cs-l-checklist div {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 600;
    color: var(--cs-color-body);
}

.cs-l-checklist span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--cs-color-primary);
    flex-shrink: 0;
}

/* ---------- Testimonial ---------- */

.cs-l-testimonial {
    padding: 90px 64px;
    background: var(--cs-color-surface);
}

.cs-l-testimonial-inner {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.cs-l-quote {
    font-size: 28px;
    line-height: 1.4;
    font-weight: 600;
    color: var(--cs-color-heading);
    margin: 0 0 28px;
    letter-spacing: -0.01em;
}

.cs-l-attrib {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.cs-l-attrib-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--cs-color-surface);
}

.cs-l-attrib-text {
    text-align: left;
}

.cs-l-attrib-name {
    font-size: 14px;
    font-weight: 700;
}

.cs-l-attrib-role {
    font-size: 13px;
    color: var(--cs-color-muted);
}

/* ---------- About ---------- */

.cs-l-about {
    display: flex;
    gap: 60px;
    align-items: flex-start;
}

.cs-l-about-copy {
    flex: 1;
}

.cs-l-about .cs-l-h2 {
    font-size: 38px;
    margin-bottom: 20px;
}

.cs-l-about p {
    font-size: 16px;
    line-height: 1.65;
    color: var(--cs-color-body);
    margin: 0 0 20px;
}

.cs-l-about p:last-child {
    margin-bottom: 0;
}

.cs-l-about .cs-l-imgslot {
    flex: 1;
    align-self: flex-start;
}

/* ---------- Final CTA ---------- */

.cs-l-finalcta {
    padding: 90px 64px;
    background: var(--cs-color-footer);
    text-align: center;
}

.cs-l-finalcta h2 {
    font-family: var(--cs-font-heading);
    font-size: 40px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--cs-color-page);
    margin: 0 0 16px;
}

.cs-l-finalcta p {
    font-size: 17px;
    color: var(--cs-color-on-dark-muted);
    margin: 0 0 36px;
}

/* ---------- Footer ---------- */

.cs-l-footer {
    padding: 56px 64px 40px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    box-sizing: border-box;
}

.cs-l-footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--cs-color-border);
}

.cs-l-footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.cs-l-footer-brand span:first-child {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    background: var(--cs-color-primary);
}

.cs-l-footer-brand span:last-child {
    font-weight: 700;
    font-size: 16px;
}

.cs-l-footer-blurb {
    font-size: 14px;
    color: var(--cs-color-muted);
    max-width: 280px;
    line-height: 1.55;
    margin: 0;
}

.cs-l-footer-col-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--cs-color-heading);
    margin-bottom: 14px;
}

.cs-l-footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
    font-size: 14px;
}

.cs-l-footer-links a {
    color: var(--cs-color-muted);
}

.cs-l-footer-links a:hover {
    color: var(--cs-color-primary);
}

.cs-l-footer-bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px;
    padding-top: 24px;
    font-size: 13px;
    color: var(--cs-color-muted);
}

.cs-l-footer .cs-funding {
    padding: 28px 0 8px;
    border-top: 1px solid var(--cs-color-border);
    margin-top: 8px;
}

.cs-l-footer .cs-funding-text {
    color: var(--cs-color-muted);
    font-size: 14px;
}

/* ---------- Flash messages ---------- */

.cs-l-flash {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 64px;
}

.cs-l-flash .alert {
    margin-top: 16px;
    margin-bottom: 0;
}

/* ---------- Responsive ---------- */

@media (max-width: 1100px) {
    .cs-l-hero {
        grid-template-columns: 1fr;
        gap: 72px;
        padding: 72px 32px 64px;
    }

    .cs-l-hero h1 {
        font-size: 48px;
    }

    .cs-l-hero-media {
        max-width: 480px;
    }

    .cs-l-section {
        padding: 72px 32px;
    }

    .cs-l-h2,
    .cs-l-finalcta h2 {
        font-size: 32px;
    }

    .cs-l-sectors .cs-l-h2,
    .cs-l-about .cs-l-h2 {
        font-size: 30px;
    }

    .cs-l-cards,
    .cs-l-steps {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .cs-l-sectors {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .cs-l-about {
        flex-direction: column;
        gap: 40px;
    }

    .cs-l-about .cs-l-imgslot {
        width: 100%;
    }

    .cs-l-how {
        padding: 72px 32px;
    }

    .cs-l-testimonial,
    .cs-l-finalcta {
        padding: 64px 32px;
    }

    .cs-l-quote {
        font-size: 22px;
    }

    .cs-l-logostrip {
        padding: 28px 32px;
    }

    .cs-l-footer {
        padding: 48px 32px 32px;
    }

    .cs-l-footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .cs-l-flash {
        padding: 0 32px;
    }
}

@media (max-width: 760px) {
    .cs-l-nav {
        padding: 14px 20px;
    }

    .cs-l-nav-links {
        display: none;
    }

    .cs-l-hero {
        padding: 56px 20px 48px;
    }

    .cs-l-hero h1 {
        font-size: 38px;
    }

    .cs-l-section {
        padding: 56px 20px;
    }

    .cs-l-how,
    .cs-l-testimonial,
    .cs-l-finalcta {
        padding: 56px 20px;
    }

    .cs-l-logostrip {
        padding: 24px 20px;
    }

    .cs-l-logos {
        gap: 24px;
    }

    .cs-l-footer {
        padding: 40px 20px 28px;
    }

    .cs-l-footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .cs-l-flash {
        padding: 0 20px;
    }
}