:root {
    --bg-dark: #0f172a;
    --bg-dark-2: #111827;
    --bg-light: #f8fafc;
    --surface: #ffffff;
    --surface-2: #f1f5f9;
    --text-main: #0f172a;
    --text-soft: #475569;
    --text-muted: #64748b;
    --line: #dbe3ee;
    --accent: #22c55e;
    --accent-2: #16a34a;
    --accent-dark: #15803d;
    --shadow-1: 0 10px 30px rgba(15, 23, 42, 0.08);
    --shadow-2: 0 18px 40px rgba(15, 23, 42, 0.12);
    --radius-lg: 18px;
    --radius-md: 14px;
    --radius-sm: 10px;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--text-main);
    background: linear-gradient(180deg, #f8fafc 0%, #eef4f8 100%);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.7;
    font-size: 16px;
}

a {
    color: var(--accent-dark);
    text-decoration: none;
    transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover {
    color: var(--accent-2);
    text-decoration: none;
}

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

.site-header .navbar {
    background: linear-gradient(90deg, #0b1220 0%, #111827 100%) !important;
    box-shadow: 0 8px 24px rgba(2, 6, 23, 0.28);
    padding-top: 0.9rem;
    padding-bottom: 0.9rem;
}

.site-header .navbar-brand {
    font-size: 1.05rem;
    letter-spacing: 0.02em;
    color: #ffffff !important;
}

.site-header .navbar-brand span {
    position: relative;
    top: 1px;
}

.site-header .nav-link {
    color: rgba(255, 255, 255, 0.82) !important;
    font-size: 0.96rem;
    padding-left: 0.9rem !important;
    padding-right: 0.9rem !important;
}

.site-header .nav-link:hover,
.site-header .nav-link:focus {
    color: #ffffff !important;
}

.site-header .navbar-toggler {
    border-color: rgba(255, 255, 255, 0.2);
}

.hero {
    position: relative;
    overflow: hidden;
    padding: 5.2rem 0 4.2rem;
    background:
        radial-gradient(circle at top right, rgba(34, 197, 94, 0.18), transparent 24%),
        radial-gradient(circle at left center, rgba(59, 130, 246, 0.10), transparent 28%),
        linear-gradient(180deg, #f8fbff 0%, #edf4f8 100%);
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(120deg, rgba(255,255,255,0.35) 0%, rgba(255,255,255,0) 36%),
        linear-gradient(0deg, rgba(255,255,255,0.35), rgba(255,255,255,0.35));
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    line-height: 1.08;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
    background: linear-gradient(90deg,#111827,#22c55e);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
}

.hero p.lead {
    max-width: 880px;
    font-size: 1.12rem;
    color: var(--text-soft);
}

.section-space {
    padding: 4rem 0;
}

.page-intro {
    padding: 3rem 0 1.25rem;
}

.quick-answer {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.08), rgba(255, 255, 255, 0.92));
    border: 1px solid rgba(34, 197, 94, 0.18);
    border-left: 5px solid var(--accent);
    border-radius: var(--radius-md);
    padding: 1.2rem 1.3rem;
    box-shadow: var(--shadow-1);
}

.quick-answer p:last-child,
.quick-answer ul:last-child {
    margin-bottom: 0;
}

.card-soft {
    position: relative;
    background: rgba(255,255,255,0.95);
    border: 1px solid rgba(219,227,238,0.9);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-1);
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card-soft::before {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: var(--radius-lg);
    background: linear-gradient(
        120deg,
        rgba(34,197,94,0.15),
        rgba(59,130,246,0.12),
        rgba(255,255,255,0)
    );
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.card-soft:hover {
    transform: translateY(-6px);
    box-shadow: 0 25px 55px rgba(15,23,42,0.18);
}

.card-soft:hover::before {
    opacity: 1;
}

.card-soft .card-body {
    padding: 1.4rem 1.35rem;
}

.card-soft h2,
.card-soft h3,
.card-soft .h4,
.card-soft .h5 {
    margin-bottom: 0.85rem;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: #0b1324;
    line-height: 1.22;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.45rem, 2vw, 2rem);
    margin-bottom: 1rem;
    margin-top: 0;
}

h3 {
    font-size: 1.15rem;
}

p {
    color: var(--text-soft);
    margin-bottom: 1rem;
}

.small-muted,
.text-muted-custom {
    color: var(--text-muted);
}

ul.clean-list {
    padding-left: 1.15rem;
    margin-bottom: 1rem;
}

ul.clean-list li {
    margin-bottom: 0.45rem;
    color: var(--text-soft);
}

.spec-table {
    margin-top: 1rem;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.05);
}

.spec-table th,
.spec-table td {
    padding: 0.9rem 1rem;
    border-color: #dce6ef !important;
    vertical-align: top;
}

.spec-table th {
    width: 34%;
    background: #f8fbfd;
    color: #0f172a;
    font-weight: 600;
}

.spec-table td {
    background: #ffffff;
    color: var(--text-soft);
}
.spec-compare {
table-layout: fixed;
width: 100%;
}

.spec-compare th,
.spec-compare td {
vertical-align: top;
}

.spec-compare th:first-child,
.spec-compare td:first-child {
width: 28%;
font-weight: 600;
background: #f8fbfd;
}

.spec-compare th:not(:first-child),
.spec-compare td:not(:first-child) {
width: 24%;
}

.accordion {
    --bs-accordion-border-color: #dce6ef;
    --bs-accordion-btn-focus-box-shadow: none;
    --bs-accordion-active-bg: #effcf3;
    --bs-accordion-active-color: #0f172a;
    --bs-accordion-btn-padding-x: 1.15rem;
    --bs-accordion-btn-padding-y: 1rem;
    --bs-accordion-body-padding-x: 1.15rem;
    --bs-accordion-body-padding-y: 1rem;
}

.accordion-item {
    border-radius: var(--radius-md) !important;
    overflow: hidden;
    box-shadow: 0 6px 18px rgba(15, 23, 42, 0.04);
    margin-bottom: 0.9rem;
}

.accordion-button {
    font-weight: 600;
    color: #0f172a;
    background: #ffffff;
}

.accordion-button:not(.collapsed) {
    border-bottom: 1px solid #e5edf4;
}

.accordion-body {
    color: var(--text-soft);
    background: #ffffff;
}

.table {
    --bs-table-bg: transparent;
}

.site-footer {
    background: linear-gradient(180deg, #0b1220 0%, #101827 100%) !important;
    color: #dbe4ee;
    margin-top: 4rem !important;
}

.site-footer h5,
.site-footer h6 {
    color: #ffffff;
}

.site-footer p {
    color: rgba(219, 228, 238, 0.78);
}

.site-footer .text-secondary,
.site-footer .small {
    color: rgba(219, 228, 238, 0.72) !important;
}

.site-footer a {
    color: rgba(219, 228, 238, 0.82) !important;
}

.site-footer a:hover {
    color: #ffffff !important;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.border-secondary {
    border-color: rgba(255, 255, 255, 0.12) !important;
}

.btn-accent {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0.7rem 1.2rem;
    border-radius: 999px;
    border: 0;
    background: linear-gradient(90deg, var(--accent) 0%, var(--accent-2) 100%);
    color: #ffffff;
    font-weight: 600;
    box-shadow: 0 10px 24px rgba(34, 197, 94, 0.28);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-accent:hover {
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 14px 28px rgba(34, 197, 94, 0.34);
}

.content-panel {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid #e4ebf3;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-1);
    padding: 1.5rem;
}

.badge-soft {
    display: inline-block;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    background: rgba(34, 197, 94, 0.1);
    color: var(--accent-dark);
    font-size: 0.85rem;
    font-weight: 600;
}

@media (max-width: 991.98px) {
    .site-header .navbar-collapse {
        margin-top: 0.8rem;
        background: rgba(255, 255, 255, 0.03);
        border: 1px solid rgba(255,255,255,0.08);
        border-radius: 14px;
        padding: 0.6rem 0.3rem;
    }

    .site-header .nav-link {
        padding-top: 0.7rem !important;
        padding-bottom: 0.7rem !important;
    }

    .hero {
        padding: 4.2rem 0 3.2rem;
    }

    .section-space {
        padding: 3.2rem 0;
    }
}

@media (max-width: 767.98px) {
    body {
        font-size: 15.5px;
    }

    .hero h1 {
        line-height: 1.12;
    }

    .card-soft .card-body,
    .content-panel,
    .quick-answer {
        padding: 1.05rem;
    }

    .site-footer {
        margin-top: 3rem !important;
    }
}