:root {
    --bg: #f7fafc;
    --accent: #6c63ff;
    --muted: #64748b;
    --card: #ffffff;
    --text: #0f172a;
}

/* Smooth scrolling for in-page anchor links */
html {
    scroll-behavior: smooth;
}

* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial,
        sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 16px;
    line-height: 1.6;
}

/* ----------------------------------------
     Layout container
     ---------------------------------------- */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 1rem;
}

/* ----------------------------------------
     Header / Navigation
     ---------------------------------------- */
.site-header {
    background: transparent;
    padding: 1rem 0;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    font-weight: 700;
    color: var(--accent);
    text-decoration: none;
    font-size: 1.6rem;
}

.nav-block {
    display: flex;
    gap: 1rem;
    align-items: center;
    padding: 0.45rem 0.7rem;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 8px 22px rgba(2, 6, 23, 0.07);
}

.nav-block a {
    color: var(--muted);
    text-decoration: none;
    padding: 0.6rem 1rem;
    border-radius: 10px;
    font-size: 1.05rem;
}

.nav-block a:hover {
    background: rgba(99, 102, 241, 0.04);
    color: #111827;
}

.nav-block a.active {
    background: var(--accent);
    color: #fff;
}

/* explicit helpers for header link classes used in HTML */
.nav-btn,
.nav-link {
    background: transparent;
    color: inherit;
    padding: 0.45rem 0.6rem;
    border-radius: 8px;
    text-decoration: none;
}

.nav-icon {
    font-size: 1.15rem;
    line-height: 1;
}

@media (max-width: 900px) {
    .nav-toggle {
        display: inline-flex;
    }

    .nav-block {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: auto;
        max-height: 92vh;
        overflow: auto;
        transform: translateY(-110%);
        transition: transform 0.28s ease;
        z-index: 1200;
        flex-direction: column;
        padding: 1rem;
        border-radius: 0;
    }

    .nav-block.open {
        transform: translateY(0);
    }
}

/* ----------------------------------------
     Hero
     ---------------------------------------- */
.hero {
    padding: 2.2rem 0;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 2rem;
    align-items: center;
}

.hero-copy h1 {
    font-size: 2rem;
    margin: 0.1rem 0;
}

.lead {
    color: var(--muted);
    margin: 0.8rem 0 1rem;
}

.cta-row {
    display: flex;
    gap: 0.8rem;
    align-items: center;
}

/* ----------------------------------------
     Sections and Cards (site-wide)
     ---------------------------------------- */
.section {
    padding: 2.25rem 0;
}

.section h2 {
    font-size: 1.45rem;
    margin-bottom: 0.6rem;
    color: var(--text);
}

.section .lede {
    color: #475569;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
}

.card {
    padding: 1rem;
    border-radius: 10px;
    background: var(--card);
    border: 1px solid #eef2f7;
    box-shadow: 0 6px 14px rgba(2, 6, 23, 0.03);
}

.card h3 {
    margin: 0 0 0.45rem;
    font-size: 1.05rem;
}

.card p {
    margin: 0;
    color: #475569;
}

.card-actions {
    margin-top: 0.9rem;
}

/* make sections visually distinct and center section cards */
.section {
    background: transparent;
    padding: 3rem 0;
}

.section+.section {
    margin-top: 1.2rem;
}

.section-card {
    background: #fff;
    border-radius: 14px;
    padding: 1.6rem;
    border: 1px solid #e9eef7;
    box-shadow: 0 10px 30px rgba(2, 6, 23, 0.04);
    max-width: 1100px;
    margin: 0 auto;
}

.section-card h2 {
    margin-top: 0;
}

/* make sub-cards appear as smaller cards */
.sub-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.sub-card {
    background: #f8fafc;
    padding: 1rem;
    border-radius: 10px;
    border: 1px solid #eef2f7;
    color: #334155;
}

.sub-card strong {
    display: block;
}

.sub-card p {
    margin: 0.5rem 0 0;
}

/* footer */
.site-footer {
    border-top: 1px solid rgba(15, 23, 42, 0.06);
    padding: 1rem 0;
    margin-top: 2rem;
    color: var(--muted);
    background: transparent;
    text-align: center;
}

.footer-links {
    margin-bottom: 0.9rem;
    color: var(--muted);
    font-size: 0.95rem;
}

.meta-line {
    margin: 0.28rem 0;
    font-size: 0.95rem;
    color: var(--muted);
}

@media (max-width: 900px) {
    .hero-inner {
        grid-template-columns: 1fr;
    }

    .phone-mock {
        margin: 0 auto;
    }

    .nav-block {
        padding: 0.15rem;
    }

    .hero-copy h1 {
        font-size: 1.6rem;
    }
}

/* Buttons and link styles */
.btn {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    padding: 0.65rem 1rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
}

.btn:hover {
    filter: brightness(0.98);
}

.links {
    color: var(--muted);
    text-decoration: none;
}

.card .btn {
    font-size: 0.95rem;
}

/* --- Homepage (index.html) overrides and homepage-specific styles --- */
body.home {
    --page-max: 980px;
}

body.home .site-header .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
    width: 100%;
    max-width: var(--page-max);
    margin: 0 auto;
    padding: 0;
}

body.home .brand {
    font-size: 2.2rem;
}

/* Quicklinks (header) - remove card background and keep text consistent */
body.home .nav-block {
    display: flex !important;
    gap: 0.6rem;
    justify-content: center !important;
    padding: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
    border-radius: 0 !important;
}

body.home .nav-block a {
    padding: 0.45rem 0.6rem;
    color: inherit !important;
    background: transparent !important;
}

body.home .nav-block a,
body.home .nav-block a:hover,
body.home .nav-block a:active,
body.home .nav-block a:focus {
    color: inherit !important;
    background: transparent !important;
}

body.home .nav-block a.active {
    background: transparent !important;
    color: inherit !important;
    box-shadow: none !important;
}

/* Hero */
body.home .hero {
    max-width: var(--page-max);
    margin: 3vh auto;
    padding: 1.6rem 1.2rem;
    text-align: center;
}

body.home .hero h1 {
    font-size: 2.8rem;
    line-height: 1.02;
    margin-bottom: 0.35rem;
    margin-top: 0.6rem;
}

body.home .lead {
    color: #475569;
    margin-top: 0.75rem;
    line-height: 1.75;
    max-width: 68ch;
    margin-left: auto;
    margin-right: auto;
}

/* Sections */
body.home .wrap {
    max-width: var(--page-max);
    margin: 1.2vh auto;
    padding: 1.6rem;
}

body.home .wrap h2 {
    text-align: center;
    font-size: 1.85rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    justify-content: center;
}

body.home .wrap h2::before,
body.home .wrap h2::after {
    content: "";
    flex: 1;
    min-width: 24px;
    height: 1px;
    background: #cbd5e1;
    /* slightly darker divider */
}

body.home .grid {
    display: grid;
    gap: 0.9rem;
    grid-template-columns: 1fr;
    margin-top: 0.5rem;
}

/* Distinct product/about cards */
body.home .card {
    background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
    padding: 1.25rem;
    border-radius: 14px;
    border: 1px solid rgba(15, 23, 42, 0.06);
    box-shadow: 0 14px 40px rgba(2, 6, 23, 0.08);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

body.home .card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(2, 6, 23, 0.1);
}

body.home .sub-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.9rem;
    margin-top: 0.9rem;
}

body.home .sub-card {
    background: #fff;
    padding: 0.95rem;
    border-radius: 12px;
    border: 1px solid rgba(15, 23, 42, 0.04);
    box-shadow: 0 10px 30px rgba(2, 6, 23, 0.05);
}

/* Typographic refinements */
body.home p,
body.home .card p,
body.home .sub-card p {
    line-height: 1.72;
    color: #475569;
    margin-bottom: 0.9rem;
}

body.home h1,
body.home h2,
body.home h3 {
    color: var(--text);
    font-weight: 700;
    letter-spacing: -0.01em;
}

/* Slightly tighter gaps for homepage */
@media (max-width: 900px) {
    body.home .site-header .container {
        gap: 0.45rem;
    }

    body.home .hero {
        margin: 2.5vh auto;
        padding: 1rem;
    }

    body.home .hero h1 {
        font-size: 1.8rem;
    }

    body.home .wrap {
        padding: 1rem;
    }

    body.home .grid {
        grid-template-columns: 1fr;
    }
}