:root {
    --planner-bg: #f6f1f1;
    --planner-surface: #ffffff;
    --planner-surface-strong: #afd3e2;
    --planner-ink: #146c94;
    --planner-ink-strong: #172d45;
    --planner-muted: #4c7a8f;
    --planner-accent: #3cb9b4;
    --planner-accent-dark: #146c94;
    --planner-teal: #ffffff;
    --planner-border: #afd3e2;
    --planner-shadow: 0 18px 40px rgba(20, 108, 148, 0.12);
    --planner-shadow-soft: 0 10px 24px rgba(23, 45, 69, 0.08);
    --nav-height: 78px;
    --section-padding: clamp(1.5rem, 4vw, 4rem);
    --content-width: 1180px;
    --radius-lg: 28px;
    --radius-md: 18px;
    --radius-sm: 12px;
    --transition: 280ms ease;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Roboto, "Segoe UI", Helvetica, Arial, sans-serif;
    background:
        radial-gradient(circle at top right, rgba(60, 185, 180, 0.15), transparent 24%),
        radial-gradient(circle at bottom left, rgba(25, 167, 206, 0.12), transparent 28%),
        var(--planner-bg);
    color: var(--planner-ink-strong);
    overflow-x: hidden;
}

a,
button {
    -webkit-tap-highlight-color: transparent;
}

img {
    display: block;
    max-width: 100%;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: var(--nav-height);
    padding: 1rem clamp(1rem, 3vw, 2rem);
    background: rgba(23, 45, 69, 0.92);
    border-bottom: 1px solid rgba(175, 211, 226, 0.25);
    backdrop-filter: blur(14px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--planner-bg);
    text-decoration: none;
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    line-height: 1;
}

.brand-mark i {
    display: block;
    color: var(--planner-teal);
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.05;
}

.brand-text strong {
    color: #3cb9b4;
    font-size: 1rem;
    letter-spacing: 0.08em;
}

.brand-text small {
    color: rgba(246, 241, 241, 0.72);
    font-size: 0.74rem;
}

.nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 0.28rem;
    width: 2.75rem;
    height: 2.75rem;
    margin-left: auto;
    border: 1px solid rgba(175, 211, 226, 0.28);
    border-radius: 0.7rem;
    background: rgba(255, 255, 255, 0.06);
    color: #ffffff;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 1.2rem;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

.top-nav {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.nav-link {
    color: rgba(246, 241, 241, 0.84);
    text-decoration: none;
    padding: 0.55rem 0.85rem;
    border-radius: 0.45rem;
    border: 1px solid transparent;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.nav-link:hover,
.nav-link.is-active {
    color: var(--planner-ink);
    background: var(--planner-surface-strong);
    border-color: var(--planner-surface-strong);
}

.side-nav {
    position: fixed;
    top: 50%;
    right: 1.2rem;
    z-index: 90;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    transform: translateY(-50%);
}

.side-dot {
    width: 0.85rem;
    height: 0.85rem;
    border: 1px solid rgba(23, 45, 69, 0.22);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.75);
    cursor: pointer;
    transition: transform var(--transition), background var(--transition), border-color var(--transition);
}

.side-dot:hover,
.side-dot.is-active {
    transform: scale(1.15);
    background: var(--planner-accent);
    border-color: var(--planner-accent);
}

.panel {
    position: relative;
    height: 100vh;
    min-height: 100vh;
    padding: calc(var(--nav-height) + 1rem) var(--section-padding) 1.25rem;
    overflow: hidden;
}

.panel::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.15), transparent 30%),
        linear-gradient(135deg, rgba(175, 211, 226, 0.08), transparent 55%);
    pointer-events: none;
}

.panel-inner {
    position: relative;
    z-index: 1;
    width: min(100%, var(--content-width));
    height: 100%;
    margin: 0 auto;
}

.panel-hero .panel-inner,
.benefits-layout,
.solution-layout,
.challenge-layout,
.modules-layout,
.cta-layout {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.challenge-layout,
.solution-layout,
.benefits-layout,
.modules-layout,
.cta-layout {
    justify-content: flex-start;
    padding-top: clamp(2rem, 5vh, 4rem);
}

.panel.is-active .reveal {
    opacity: 1;
    transform: translateY(0);
}

.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 600ms ease, transform 600ms ease;
}

.panel.is-active .reveal:nth-child(2) {
    transition-delay: 120ms;
}

.eyebrow {
    margin: 0 0 0.9rem;
    color: var(--planner-accent-dark);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

h1,
h2,
h3,
p,
blockquote {
    margin-top: 0;
}

h1 {
    margin-bottom: 0.6rem;
    color: var(--planner-ink-strong);
    font-size: clamp(3rem, 9vw, 6rem);
    line-height: 0.94;
    letter-spacing: 0.05em;
}

.hero-copy h2,
.section-heading h2,
.cta-card h2 {
    margin-bottom: 1rem;
    color: var(--planner-ink-strong);
    font-size: clamp(1.5rem, 3.8vw, 2rem);
    line-height: 1.08;
    max-width: 120ch;
}

.lead {
    max-width: 120ch;
    color: var(--planner-muted);
    font-size: clamp(1rem, 1.8vw, 1.18rem);
    line-height: 1.65;
}

.panel-hero {
    background:
        linear-gradient(120deg, rgba(246, 241, 241, 0.88), rgba(246, 241, 241, 0.42)),
        linear-gradient(180deg, rgba(23, 45, 69, 0.18), rgba(23, 45, 69, 0.08)),
        url("../images/Background-01.jpg") center center / cover no-repeat;
}

.panel-hero .panel-inner {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
    align-items: center;
    gap: clamp(2rem, 4vw, 4rem);
}

.hero-actions {
    display: flex;
    gap: 0.9rem;
    flex-wrap: wrap;
    margin-top: 1.8rem;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 3.1rem;
    padding: 0.9rem 1.35rem;
    border-radius: 0.7rem;
    border: 1px solid transparent;
    text-decoration: none;
    font-weight: 700;
    transition: transform var(--transition), background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.button:hover {
    transform: translateY(-2px);
}

.button-primary {
    color: #ffffff;
    background: var(--planner-accent-dark);
    box-shadow: var(--planner-shadow);
}

.button-primary:hover {
    background: var(--planner-ink-strong);
}

.button-secondary {
    color: var(--planner-ink-strong);
    background: rgba(255, 255, 255, 0.68);
    border-color: rgba(23, 45, 69, 0.12);
}

.button-secondary:hover {
    background: var(--planner-surface-strong);
    border-color: var(--planner-surface-strong);
}

.hero-visual {
    justify-self: end;
    width: min(100%, 540px);
    padding: 1.2rem;
    border: 1px solid rgba(175, 211, 226, 0.8);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.78);
    box-shadow: var(--planner-shadow);
}

.section-heading {
    margin-bottom: 2rem;
}

.challenge-grid,
.features-grid {
    display: grid;
    gap: 1rem;
}

.challenge-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

.info-card,
.feature-card,
.testimonial-card,
.cta-card {
    border: 1px solid rgba(175, 211, 226, 0.7);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.84);
    box-shadow: var(--planner-shadow-soft);
}

.info-card {
    padding: 1.35rem;
    min-height: 240px;
}

.info-card h3,
.feature-card h3 {
    margin-bottom: 0.7rem;
    font-size: 1.05rem;
    color: var(--planner-ink-strong);
}

.info-card p,
.feature-card p,
.testimonial-card p {
    color: var(--planner-muted);
    line-height: 1.6;
}

.card-index {
    display: inline-block;
    margin-bottom: 1rem;
    color: var(--planner-accent-dark);
    font-weight: 700;
    letter-spacing: 0.08em;
}

.features-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature-card {
    padding: 1.5rem;
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    margin-bottom: 1rem;
    border-radius: 0.8rem;
    background: linear-gradient(135deg, var(--planner-surface-strong), rgba(60, 185, 180, 0.9));
    color: var(--planner-ink-strong);
    font-weight: 700;
}

.benefits-content {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
    gap: 1.2rem;
    align-items: stretch;
}

.benefits-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
}

.benefit-item {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    padding: 1.2rem 1.1rem;
    border-left: 4px solid var(--planner-accent);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.82);
    box-shadow: var(--planner-shadow-soft);
    line-height: 1.45;
}

.benefit-item strong {
    color: var(--planner-ink-strong);
    font-size: 1rem;
    font-weight: 700;
}

.benefit-item span {
    color: var(--planner-muted);
    font-size: 0.94rem;
    line-height: 1.55;
}

.testimonials {
    display: grid;
    gap: 1rem;
}

.testimonial-card {
    padding: 1.4rem;
}

.testimonial-card footer {
    margin-top: 1rem;
    color: var(--planner-ink);
    font-size: 0.92rem;
    font-weight: 600;
}

.modules-showcase {
    display: grid;
    gap: 1.2rem;
}

.module-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.module-tab {
    appearance: none;
    border: 1px solid rgba(175, 211, 226, 0.9);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.82);
    color: var(--planner-ink-strong);
    padding: 0.8rem 1.15rem;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}

.module-tab:hover,
.module-tab.is-active {
    background: var(--planner-accent-dark);
    border-color: var(--planner-accent-dark);
    color: #ffffff;
    transform: translateY(-1px);
}

.module-stage {
    display: grid;
    grid-template-columns: minmax(260px, 0.36fr) minmax(0, 1fr);
    gap: 1.2rem;
    align-items: start;
}

.module-copy {
    padding: 1.4rem;
    border: 1px solid rgba(175, 211, 226, 0.7);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.82);
    box-shadow: var(--planner-shadow-soft);
}

.module-copy h3 {
    margin-bottom: 0.8rem;
    color: var(--planner-ink-strong);
    font-size: clamp(1.3rem, 2.2vw, 1.7rem);
}

.module-copy p {
    margin-bottom: 0;
    color: var(--planner-muted);
    line-height: 1.65;
}

.module-screen {
    padding: 1rem;
    border: 1px solid rgba(175, 211, 226, 0.8);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.86);
    box-shadow: var(--planner-shadow);
}

.module-screen img {
    width: 100%;
    border-radius: calc(var(--radius-md) - 4px);
}

.panel-cta {
    background:
        linear-gradient(180deg, rgba(23, 45, 69, 0.06), rgba(23, 45, 69, 0.12)),
        linear-gradient(135deg, rgba(175, 211, 226, 0.24), rgba(60, 185, 180, 0.1));
}

#solution {
    background:
        linear-gradient(120deg, rgba(246, 241, 241, 0.9), rgba(246, 241, 241, 0.56)),
        linear-gradient(180deg, rgba(23, 45, 69, 0.16), rgba(23, 45, 69, 0.06)),
        url("../images/Background-02.jpg") center center / cover no-repeat;
}

.cta-layout {
    align-items: center;
}

.cta-card {
    width: min(100%, 920px);
    padding: clamp(1.5rem, 4vw, 3rem);
    text-align: center;
}

.cta-card h2,
.cta-card .lead {
    max-width: none;
}

.cta-card .hero-actions {
    justify-content: center;
}

.site-footer {
    position: absolute;
    left: var(--section-padding);
    right: var(--section-padding);
    bottom: 1rem;
    z-index: 1;
    width: min(100%, var(--content-width));
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    color: var(--planner-ink-strong);
    font-size: 0.92rem;
}

.footer-links {
    display: flex;
    gap: 1rem;
}

.footer-links a {
    color: var(--planner-ink);
    text-decoration: none;
}

.footer-links a:hover {
    text-decoration: underline;
}

.legal-panel {
    position: absolute;
    left: var(--section-padding);
    right: var(--section-padding);
    bottom: 4.9rem;
    z-index: 1;
    width: min(100%, var(--content-width));
    margin: 0 auto;
    padding: 1rem 1.1rem;
    border: 1px solid rgba(175, 211, 226, 0.85);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.94);
    box-shadow: var(--planner-shadow-soft);
}

.legal-panel h3 {
    margin-bottom: 0.75rem;
    color: var(--planner-ink-strong);
    font-size: 1rem;
}

.legal-panel p {
    margin: 0 0 0.65rem;
    color: var(--planner-muted);
    font-size: 0.92rem;
    line-height: 1.55;
}

.legal-panel p:last-child {
    margin-bottom: 0;
}

@media (max-width: 1180px) {
    .challenge-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .features-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .benefits-content {
        grid-template-columns: 1fr;
    }

    .module-stage {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    .site-header {
        align-items: center;
        flex-wrap: wrap;
        gap: 0.75rem;
        padding: 0.7rem 1rem;
    }

    .nav-toggle {
        display: inline-flex;
        width: 2.4rem;
        height: 2.4rem;
    }

    .top-nav {
        display: none;
        width: 100%;
        padding-top: 0.3rem;
        justify-content: flex-start;
        flex-direction: column;
        align-items: stretch;
        gap: 0.35rem;
    }

    .top-nav.is-open {
        display: flex;
    }

    .top-nav .nav-link {
        width: 100%;
        padding: 0.48rem 0.72rem;
    }

    .brand {
        gap: 0.6rem;
    }

    .brand-mark {
        font-size: 1.35rem;
    }

    .brand-text strong {
        font-size: 0.92rem;
    }

    .brand-text small {
        font-size: 0.68rem;
    }

    .panel {
        padding-top: calc(var(--nav-height) + 3rem);
    }

    .panel-hero .panel-inner {
        grid-template-columns: 1fr;
    }

    .hero-copy h2,
    .section-heading h2,
    .cta-card h2 {
        max-width: 16ch;
    }

    .hero-visual {
        justify-self: stretch;
    }

    .challenge-grid,
    .benefits-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .site-footer {
        position: static;
        width: 100%;
        margin-top: 1rem;
        padding-bottom: 0.5rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .legal-panel {
        position: static;
        width: 100%;
        margin-top: 1rem;
    }
}

@media (max-width: 640px) {
    :root {
        --nav-height: 78px;
    }

    body {
        background:
            radial-gradient(circle at top right, rgba(60, 185, 180, 0.12), transparent 24%),
            var(--planner-bg);
    }

    .site-header {
        gap: 0.55rem;
        padding: 0.55rem 0.85rem;
    }

    .nav-toggle {
        width: 2.2rem;
        height: 2.2rem;
        border-radius: 0.6rem;
    }

    .nav-toggle span {
        width: 1rem;
    }

    .side-nav {
        right: 0.65rem;
    }

    .panel {
        padding-inline: 1rem;
        padding-bottom: 1rem;
    }

    .challenge-grid,
    .features-grid,
    .benefits-list {
        grid-template-columns: 1fr;
    }

    .info-card {
        min-height: 0;
    }

    .hero-actions,
    .cta-card .hero-actions {
        flex-direction: column;
    }

    .button {
        width: 100%;
    }

    .brand-text small {
        display: none;
    }
}

@media (max-width: 900px), (max-height: 820px) {
    #challenge,
    #solution,
    #benefits,
    #modules,
    #contact {
        height: auto;
        min-height: 100svh;
        overflow: visible;
    }

    #challenge .panel-inner,
    #solution .panel-inner,
    #benefits .panel-inner,
    #modules .panel-inner,
    #contact .panel-inner {
        height: auto;
    }

    .reveal,
    .panel.is-active .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
    }
}