/* Emergency Heating Help London - Premium 2026 Professional Design System */
:root {
    --navy: #0b1220;
    --navy-mid: #111827;
    --navy-card: #162032;
    --navy-light: #1e293b;
    --accent: #0369a1;
    --accent-hover: #075985;
    --accent-soft: #e0f2fe;
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #cbd5e1;
    --gray-300: #94a3b8;
    --gray-400: #475569;
    --gray-500: #334155;
    --gray-600: #1e293b;
    --gray-700: #0f172a;
    --gray-800: #020617;
    --red-urgent: #dc2626;
    --red-soft: #fef2f2;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.05);
    --shadow-lg: 0 20px 35px -5px rgb(11 18 32 / 0.12), 0 10px 15px -5px rgb(11 18 32 / 0.06);
    --shadow-glow: 0 0 30px -5px rgba(14, 165, 233, 0.25);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.65;
    color: var(--gray-800);
    background: var(--white);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .font-display {
    font-family: 'Plus Jakarta Sans', 'Inter', -apple-system, sans-serif;
    letter-spacing: -0.02em;
}

.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section-intro {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 2rem;
}

/* ========== Header ========== */
.site-header {
    background: rgba(11, 18, 32, 0.94);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--white);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0;
    gap: 0.75rem;
}

.logo {
    text-decoration: none;
    color: var(--white);
    display: flex;
    align-items: center;
    flex-shrink: 0;
    max-width: 70%;
}

/* Rectangular logo - larger, side to side */
.logo-img {
    display: block;
    height: 52px;
    width: auto;
    max-width: 240px;
    object-fit: contain;
    object-position: left center;
}

.logo-text-fallback {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-text {
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: -0.01em;
}

.logo-sub {
    font-size: 0.7rem;
    opacity: 0.92;
    color: #e2e8f0;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

@media (min-width: 480px) {
    .logo-img {
        height: 56px;
        max-width: 280px;
    }
}

@media (min-width: 768px) {
    .logo {
        max-width: 320px;
    }
    .logo-img {
        height: 56px;
        max-width: 300px;
    }
}

.main-nav {
    display: none;
    gap: 1.75rem;
}

.main-nav a {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.15s;
}

.main-nav a:hover {
    color: var(--white);
}

.skip-link {
    position: absolute;
    z-index: 1000;
    top: 0.5rem;
    left: 0.5rem;
    padding: 0.7rem 1rem;
    transform: translateY(-150%);
    background: var(--white);
    color: var(--navy);
    border-radius: 8px;
    font-weight: 700;
}

.skip-link:focus { transform: translateY(0); }

.mobile-menu { display: none; }

a:focus-visible, button:focus-visible, summary:focus-visible,
input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: 3px solid #38bdf8;
    outline-offset: 3px;
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.35rem;
    border-radius: var(--radius);
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
    transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
    line-height: 1.3;
}

.btn:active {
    transform: scale(0.98);
}

.btn-phone {
    background: var(--accent);
    color: var(--white);
    box-shadow: 0 1px 2px rgb(0 0 0 / 0.1);
}

.btn-phone:hover {
    background: var(--accent-hover);
}

.btn-primary {
    background: var(--accent);
    color: var(--white);
    box-shadow: 0 4px 14px 0 rgba(14, 165, 233, 0.35);
}

.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 6px 20px 0 rgba(14, 165, 233, 0.45);
    transform: translateY(-1px);
}

.btn-full {
    width: 100%;
    padding: 1rem 1.25rem;
    font-size: 1.05rem;
    border-radius: var(--radius);
}

.btn-outline {
    background: transparent;
    border: 1.5px solid rgba(255,255,255,0.45);
    color: var(--white);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.7);
}

/* ========== Hero ========== */
.hero {
    position: relative;
    background: radial-gradient(circle at 50% -20%, rgba(14, 165, 233, 0.15), transparent 60%),
                linear-gradient(165deg, var(--navy) 0%, var(--navy-mid) 50%, #070c16 100%);
    color: var(--white);
    padding: 3rem 0 4rem;
    overflow: visible;
}

.hero .container {
    max-width: 1140px;
}

.hero h1 {
    font-size: clamp(1.85rem, 5vw, 2.75rem);
    line-height: 1.18;
    margin-bottom: 1rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    color: var(--white);
}

.hero .subheadline {
    font-size: 1.12rem;
    margin-bottom: 2rem;
    max-width: 540px;
    line-height: 1.6;
    font-weight: 450;
    color: #f8fafc;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2.25rem;
}

.hero-actions .btn {
    width: 100%;
    padding: 1rem 1.25rem;
    font-size: 1.05rem;
    min-height: 52px;
}

@media (min-width: 480px) {
    .hero-actions {
        flex-direction: row;
        flex-wrap: wrap;
    }
    .hero-actions .btn {
        width: auto;
        min-width: 160px;
        padding: 0.9rem 1.5rem;
    }
}

.hero-form-box {
    background: var(--white);
    color: var(--gray-800);
    border-radius: var(--radius-lg);
    padding: 2rem 1.85rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.1);
    border: 1px solid var(--gray-200);
    max-width: 540px;
    position: relative;
    z-index: 10;
}

.hero-form-box h2 {
    font-size: 1.3rem;
    margin-bottom: 1.35rem;
    color: var(--navy);
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    letter-spacing: -0.01em;
}

/* ========== Sections ========== */
.section {
    padding: 3.25rem 0;
}

.section-alt {
    background: var(--gray-50);
}

.section h2 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--navy);
    font-weight: 700;
    letter-spacing: -0.015em;
}

.section > .container > p {
    margin-bottom: 1.25rem;
    color: var(--gray-600);
    max-width: 640px;
}

.section ul {
    margin: 1rem 0 1.5rem 1.35rem;
    color: var(--gray-600);
}

.section ul li {
    margin-bottom: 0.4rem;
}

/* ========== Cards ========== */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-top: 1.75rem;
}

.card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 1.6rem 1.5rem;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}

.card h3 {
    font-size: 1.12rem;
    margin-bottom: 0.5rem;
    color: var(--navy);
    font-weight: 700;
}

.card p {
    font-size: 0.92rem;
    color: var(--gray-600);
    margin-bottom: 1.25rem;
    line-height: 1.55;
}

.card a {
    color: var(--accent);
    font-weight: 600;
    text-decoration: none;
    font-size: 0.92rem;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    transition: color 0.15s;
}

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

/* ========== Form ========== */
.lead-form-wrapper {
    max-width: 100%;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.9rem;
    margin-bottom: 0.15rem;
}

@media (min-width: 520px) {
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}

.form-group {
    margin-bottom: 0.95rem;
}

.form-group label {
    display: block;
    font-size: 0.84rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--navy);
    letter-spacing: 0.01em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.72rem 0.9rem;
    border: 1.5px solid var(--gray-200);
    border-radius: 8px;
    font-size: 0.95rem;
    font-family: inherit;
    background: var(--white);
    color: var(--gray-800);
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-500);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2464748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.9rem center;
    padding-right: 2.2rem;
}

.form-note {
    font-size: 0.82rem;
    color: var(--gray-600);
    font-weight: 500;
    margin-top: 0.9rem;
    text-align: center;
    line-height: 1.45;
}

/* ========== Process steps ========== */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 1.5rem;
    margin-top: 1.75rem;
}

.step {
    text-align: center;
    padding: 1.25rem 1rem;
}

.step-num {
    display: inline-flex;
    width: 2.6rem;
    height: 2.6rem;
    align-items: center;
    justify-content: center;
    background: var(--navy);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 0.9rem;
}

.step h3 {
    font-size: 1.05rem;
    margin-bottom: 0.35rem;
    color: var(--navy);
}

.step p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.45;
}

/* ========== Issues Grid (Modern 2026 Interactive Diagnostic) ========== */
.issues-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2.25rem;
}

.issue-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 1.5rem 1.35rem;
    display: flex;
    align-items: flex-start;
    gap: 1.15rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.issue-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}

.issue-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: rgba(14, 165, 233, 0.1);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.issue-icon svg {
    width: 22px;
    height: 22px;
}

.issue-content h3 {
    font-size: 1.05rem;
    margin-bottom: 0.35rem;
    color: var(--navy);
    font-weight: 700;
}

.issue-content p {
    font-size: 0.88rem;
    color: var(--gray-600);
    line-height: 1.5;
    margin-bottom: 0;
}

.platform-guarantee-box {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    font-size: 0.9rem;
    color: var(--gray-700);
    line-height: 1.5;
}

.btn-link-all {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--accent);
    text-decoration: none;
    transition: color 0.15s;
    white-space: nowrap;
}

.btn-link-all:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

/* ========== Areas grid ========== */
.areas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 1rem;
    margin-top: 1.25rem;
}

.area-link {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    background: var(--white);
    border: 1px solid var(--gray-200);
    padding: 1.25rem 1.15rem;
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--navy);
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.area-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
    background: var(--white);
}

.area-link .area-name {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--navy);
    margin-bottom: 0.35rem;
}

.area-link .area-tag {
    font-size: 0.82rem;
    color: var(--gray-600);
    font-weight: 600;
}

.area-link:hover .area-name {
    color: var(--accent);
}

/* ========== Local info boxes (Modernized Authority Cards) ========== */
.local-info {
    background: var(--white);
    border: 1px solid var(--gray-200);
    padding: 1.5rem 1.6rem;
    margin: 1.5rem 0;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s;
}

.local-info:hover {
    box-shadow: var(--shadow);
}

.local-info h3 {
    margin-bottom: 0.75rem;
    color: var(--navy);
    font-size: 1.12rem;
    font-weight: 700;
}

.local-info p {
    font-size: 0.94rem;
    color: var(--gray-600);
    margin-bottom: 0.65rem;
    line-height: 1.6;
}

.local-info p strong {
    color: var(--navy);
    font-weight: 600;
}

.local-info p:last-child {
    margin-bottom: 0;
}

/* ========== Urgent note ========== */
.urgent-note {
    background: var(--red-soft);
    border: 1px solid #fecaca;
    color: #991b1b;
    padding: 1rem 1.15rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    margin-bottom: 1.35rem;
    line-height: 1.5;
}

/* ========== Breadcrumbs ========== */
.breadcrumbs {
    font-size: 0.85rem;
    margin-bottom: 1.15rem;
    color: rgba(255,255,255,0.85);
    font-weight: 500;
}

.hero .breadcrumbs a {
    color: #ffffff;
    text-decoration: underline;
    text-decoration-color: rgba(255,255,255,0.4);
}

.hero .breadcrumbs a:hover {
    color: #38bdf8;
    text-decoration-color: #38bdf8;
}

.section .breadcrumbs {
    color: var(--gray-600);
    font-weight: 500;
}

.section .breadcrumbs a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}

/* ========== Footer ========== */
.site-footer {
    background: var(--navy);
    color: rgba(255,255,255,0.88);
    padding: 3.25rem 0 1.75rem;
    margin-top: 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
    margin-bottom: 2.25rem;
}

.footer-col h3,
.footer-col h4 {
    color: #ffffff;
    margin-bottom: 0.85rem;
    font-size: 0.98rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.footer-col p {
    font-size: 0.9rem;
    line-height: 1.6;
    color: rgba(255,255,255,0.88);
}

.footer-col ul {
    list-style: none;
    margin: 0;
}

.footer-col a {
    color: #e2e8f0;
    text-decoration: none;
    font-size: 0.9rem;
    display: block;
    margin-bottom: 0.45rem;
    transition: color 0.15s;
}

.footer-col a:hover {
    color: #ffffff;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.15);
    padding-top: 1.5rem;
    font-size: 0.86rem;
    color: #e2e8f0;
}

.disclaimer {
    margin-bottom: 1rem;
    line-height: 1.6;
    color: #e2e8f0;
}

.disclaimer strong {
    color: #ffffff;
}

/* ========== Utilities ========== */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }

/* ========== Responsive ========== */
@media (min-width: 768px) {
    .hero {
        padding: 3.5rem 0 4rem;
    }

    .hero-form-box {
        padding: 2rem 1.75rem;
    }

    .section {
        padding: 4rem 0;
    }

    .section-intro { flex-direction: row; }
}

@media (min-width: 1100px) {
    .main-nav { display: flex; }
    .mobile-menu { display: none; }
}

@media (min-width: 768px) and (max-width: 1099px) {
    .mobile-menu {
        display: block;
        position: relative;
        flex-shrink: 0;
    }
    .mobile-menu summary {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 0.75rem;
        min-height: 44px;
        padding: 0.55rem 0.75rem;
        color: var(--white);
        border: 1px solid rgba(255,255,255,0.22);
        border-radius: 8px;
        cursor: pointer;
        list-style: none;
        font-weight: 650;
    }
    .mobile-menu summary::-webkit-details-marker { display: none; }
    .mobile-menu summary::after {
        content: "";
        width: 0.45rem;
        height: 0.45rem;
        border-right: 2px solid currentColor;
        border-bottom: 2px solid currentColor;
        transform: rotate(45deg) translateY(-2px);
    }
    .mobile-menu[open] summary::after { transform: rotate(225deg); }
    .mobile-nav {
        position: absolute;
        top: calc(100% + 0.5rem);
        right: 0;
        z-index: 10;
        display: grid;
        gap: 0.15rem;
        width: 230px;
        padding: 0.5rem;
        background: var(--navy-mid);
        border: 1px solid rgba(255,255,255,0.14);
        border-radius: 10px;
        box-shadow: var(--shadow-lg);
    }
    .mobile-nav a {
        display: block;
        padding: 0.7rem 0.75rem;
        border-radius: 7px;
        color: rgba(255,255,255,0.92);
        text-decoration: none;
    }
    .mobile-nav a:hover, .mobile-nav a:focus-visible { background: rgba(255,255,255,0.1); }
}

@media (max-width: 767px) {
    .header-inner { flex-wrap: wrap; }
    .logo { max-width: 60%; }
    .header-cta .btn-phone { padding: 0.65rem 0.9rem; font-size: 0.88rem; }
    .mobile-menu {
        display: block;
        position: relative;
        order: 3;
        width: 100%;
    }
    .mobile-menu summary {
        display: flex;
        justify-content: space-between;
        align-items: center;
        min-height: 44px;
        padding: 0.55rem 0.25rem;
        color: var(--white);
        cursor: pointer;
        list-style: none;
        font-weight: 650;
    }
    .mobile-menu summary::after {
        content: "";
        width: 0.5rem;
        height: 0.5rem;
        margin-right: 0.25rem;
        border-right: 2px solid currentColor;
        border-bottom: 2px solid currentColor;
        transform: rotate(45deg) translateY(-2px);
        transition: transform 0.15s ease;
    }
    .mobile-menu[open] summary::after { transform: rotate(225deg) translate(-2px, -1px); }
    .mobile-menu summary::-webkit-details-marker { display: none; }
    .mobile-nav {
        display: grid;
        gap: 0.15rem;
        padding: 0 0 0.75rem;
    }
    .mobile-nav a {
        display: block;
        padding: 0.7rem 0.75rem;
        border-radius: 8px;
        color: rgba(255,255,255,0.92);
        text-decoration: none;
    }
    .mobile-nav a:hover, .mobile-nav a:focus-visible { background: rgba(255,255,255,0.1); }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (min-width: 900px) {
    .hero .container {
        display: grid;
        grid-template-columns: 1fr 1.05fr;
        gap: 3.5rem;
        align-items: start;
    }

    .hero-form-box {
        max-width: none;
        grid-column: 2;
        grid-row: 1 / span 5;
    }

    .hero .breadcrumbs,
    .hero h1,
    .hero .subheadline,
    .hero-actions {
        grid-column: 1;
    }

    .hero-form-box {
        align-self: start;
    }
}

/* ========== 2026 Floating WhatsApp Action Button ========== */
.whatsapp-float-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    display: flex;
    align-items: center;
}

.whatsapp-float-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 10px 18px 10px 14px;
    background: #128c43;
    color: #ffffff !important;
    text-decoration: none !important;
    border-radius: 9999px;
    box-shadow: 0 10px 25px -4px rgba(37, 211, 102, 0.45), 0 4px 10px -2px rgba(0, 0, 0, 0.15);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    backdrop-filter: blur(8px);
}

.whatsapp-float-btn:hover {
    background: #0f7137;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 16px 32px -4px rgba(37, 211, 102, 0.6), 0 6px 14px -2px rgba(0, 0, 0, 0.2);
}

.whatsapp-icon {
    flex-shrink: 0;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.2));
}

.whatsapp-text {
    display: flex;
    flex-direction: column;
    line-height: 1.25;
    text-align: left;
}

.whatsapp-text strong {
    font-size: 0.94rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: #ffffff;
}

.whatsapp-text small {
    font-size: 0.72rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

.whatsapp-online-ping {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 10px;
    height: 10px;
    background-color: #10b981;
    border: 2px solid #ffffff;
    border-radius: 9999px;
    box-shadow: 0 0 0 2px rgba(37, 211, 102, 0.4);
    animation: ping-pulse 2s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes ping-pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    70% {
        box-shadow: 0 0 0 7px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

@media (max-width: 640px) {
    .whatsapp-float-container {
        bottom: 18px;
        right: 18px;
    }
    .whatsapp-float-btn {
        padding: 12px;
        border-radius: 50%;
    }
    .whatsapp-text {
        display: none;
    }
    .whatsapp-online-ping {
        top: 2px;
        right: 2px;
    }
}

/* ========== 2026 Bulletproof Guide CTA Box ========== */
.cta-guide-box {
    background-color: #0b1220 !important;
    background: linear-gradient(135deg, #0b1220 0%, #111827 50%, #162032 100%) !important;
    border: 1px solid #1e293b !important;
    color: #ffffff !important;
    border-radius: 1.25rem !important;
    padding: 2rem !important;
    box-shadow: 0 20px 35px -5px rgba(11, 18, 32, 0.35) !important;
}

.cta-guide-box h3 {
    color: #ffffff !important;
}

.cta-guide-box p {
    color: #e2e8f0 !important;
}

/* Global Guide Prose High-Contrast Overrides */
.prose p, .prose li {
    color: #0f172a !important;
    font-size: 1.02rem;
    line-height: 1.7;
}

.prose h2, .prose h3 {
    color: #0b1220 !important;
    font-weight: 700;
}

/* ========== 2026 AEO / GEO Direct Answer Snippet Box ========== */
.direct-answer-box {
    background: #f8fafc;
    border: 1.5px solid #cbd5e1;
    border-radius: 12px;
    padding: 1.25rem 1.4rem;
    margin: 1.5rem 0 2rem;
    box-shadow: 0 4px 12px -2px rgba(15, 23, 42, 0.05);
}
.direct-answer-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.65rem;
    border-radius: 9999px;
    background: rgba(14, 165, 233, 0.12);
    color: #0369a1;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 0.65rem;
}
.direct-answer-text {
    color: #0f172a !important;
    font-size: 1.02rem !important;
    line-height: 1.68 !important;
    font-weight: 450 !important;
    margin: 0 !important;
}
.direct-answer-text strong {
    color: #0b1220 !important;
    font-weight: 700 !important;
}

/* ========== 2026 Semantic Accessible FAQ Accordion ========== */
.faq-section {
    margin-top: 3rem;
}
.faq-section h2 {
    margin-bottom: 1.5rem;
}
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}
.faq-item {
    background: var(--white);
    border: 1.5px solid var(--gray-200);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.faq-item[open] {
    border-color: var(--accent);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.08);
}
.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--navy);
    cursor: pointer;
    list-style: none;
    user-select: none;
}
.faq-question::-webkit-details-marker {
    display: none;
}
.faq-question::after {
    content: "＋";
    font-size: 1.2rem;
    color: var(--accent);
    font-weight: 700;
    transition: transform 0.2s;
    flex-shrink: 0;
}
.faq-item[open] .faq-question::after {
    content: "−";
    color: var(--navy);
}
.faq-answer {
    margin-top: 0.85rem;
    padding-top: 0.85rem;
    border-top: 1px solid var(--gray-200);
    color: var(--gray-600);
    font-size: 0.95rem;
    line-height: 1.65;
}
.faq-answer p {
    margin-bottom: 0.65rem;
}
.faq-answer p:last-child {
    margin-bottom: 0;
}

/* Table metadata and citations */
.data-citation {
    margin-top: 0.75rem;
    font-size: 0.82rem;
    color: var(--gray-600);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    line-height: 1.5;
}
.data-citation i {
    color: var(--accent);
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}