/* ==========================================================================
   E-Invoicing Pages — Service Landing & Guide Article
   Author: Sami SELLAMI - La Homline
   ========================================================================== */

/* =========================================================================
   Layout
   ========================================================================= */

.einv-page {
    padding-top: 2rem;
    padding-bottom: 4rem;
}

.einv-page .container {
    max-width: 820px;
}

/* =========================================================================
   Hero (Service page)
   ========================================================================= */

.einv-hero {
    text-align: center;
    padding: 2rem 0 3rem;
}

.einv-hero h1 {
    font-family: var(--font-heading, 'DM Serif Display', serif);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--color-dark, #1a1a2e);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.einv-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #fff3e0;
    color: #e65100;
    font-size: .8rem;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 1.25rem;
}

.einv-hero-badge svg {
    flex-shrink: 0;
}

.einv-hero-sub {
    font-size: 1.05rem;
    color: var(--color-text, #555770);
    line-height: 1.7;
    max-width: 640px;
    margin: 0 auto 2rem;
}

.einv-hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

/* =========================================================================
   Article Header (Guide page)
   ========================================================================= */

.einv-article-header {
    padding: 2rem 0 1.5rem;
    border-bottom: 1px solid var(--color-border, #e8e8ee);
    margin-bottom: 2rem;
}

.einv-article-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: .8rem;
    color: var(--color-text-light, #8a8ca5);
    margin-bottom: 1rem;
}

.einv-article-header h1 {
    font-family: var(--font-heading, 'DM Serif Display', serif);
    font-size: clamp(1.6rem, 3.5vw, 2.25rem);
    color: var(--color-dark, #1a1a2e);
    line-height: 1.25;
    margin-bottom: 1rem;
}

.einv-article-intro {
    font-size: 1.05rem;
    color: var(--color-text, #555770);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.einv-article-author {
    font-size: .85rem;
    color: var(--color-text-light, #8a8ca5);
}

/* =========================================================================
   Table of Contents (Guide page)
   ========================================================================= */

.einv-toc {
    background: var(--color-light, #f7f7fa);
    border-radius: 12px;
    padding: 1.5rem 2rem;
    margin-bottom: 2.5rem;
}

.einv-toc strong {
    display: block;
    font-size: .9rem;
    color: var(--color-dark, #1a1a2e);
    margin-bottom: 0.75rem;
}

.einv-toc ol {
    list-style: decimal;
    padding-left: 1.25rem;
    margin: 0;
}

.einv-toc li {
    margin-bottom: 0.4rem;
    font-size: .9rem;
}

.einv-toc a {
    color: var(--color-primary, #d32f2f);
    text-decoration: none;
    transition: color var(--transition, .3s ease);
}

.einv-toc a:hover {
    text-decoration: underline;
}

/* =========================================================================
   Article Body (Guide page)
   ========================================================================= */

.einv-article-body section {
    margin-bottom: 2.5rem;
    scroll-margin-top: 100px;
}

.einv-article-body h2 {
    font-family: var(--font-heading, 'DM Serif Display', serif);
    font-size: 1.5rem;
    color: var(--color-dark, #1a1a2e);
    margin-bottom: 1rem;
}

.einv-article-body p {
    font-size: .95rem;
    color: var(--color-text, #555770);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.einv-note {
    background: #fff8e1;
    border-left: 3px solid #ffc107;
    padding: 1rem 1.25rem;
    border-radius: 0 8px 8px 0;
    font-size: .9rem;
}

/* =========================================================================
   Timeline (Service page)
   ========================================================================= */

.einv-timeline {
    margin-bottom: 2.5rem;
}

.einv-timeline h2 {
    font-family: var(--font-heading, 'DM Serif Display', serif);
    font-size: 1.5rem;
    color: var(--color-dark, #1a1a2e);
    text-align: center;
    margin-bottom: 1.5rem;
}

.einv-timeline-track {
    position: relative;
    padding-left: 2rem;
}

.einv-timeline-track::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: var(--color-border, #e8e8ee);
}

.einv-timeline-item {
    position: relative;
    margin-bottom: 1.5rem;
}

.einv-timeline-item::before {
    content: '';
    position: absolute;
    left: -2rem;
    top: 6px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--color-primary, #d32f2f);
    border: 3px solid #fff;
    box-shadow: 0 0 0 2px var(--color-primary, #d32f2f);
    z-index: 1;
}

.einv-timeline-item--urgent::before {
    animation: einv-pulse 2s infinite;
}

@keyframes einv-pulse {
    0%, 100% { box-shadow: 0 0 0 2px var(--color-primary, #d32f2f); }
    50%      { box-shadow: 0 0 0 6px rgba(211, 47, 47, .2); }
}

.einv-timeline-date {
    font-size: .75rem;
    font-weight: 700;
    color: var(--color-primary, #d32f2f);
    text-transform: uppercase;
    letter-spacing: .03em;
}

.einv-timeline-card {
    background: var(--color-light, #f7f7fa);
    border-radius: 10px;
    padding: 1rem 1.25rem;
    margin-top: 0.4rem;
}

.einv-timeline-card strong {
    display: block;
    font-size: .95rem;
    color: var(--color-dark, #1a1a2e);
    margin-bottom: 0.3rem;
}

.einv-timeline-card p {
    font-size: .85rem;
    color: var(--color-text, #555770);
    line-height: 1.6;
    margin: 0;
}

/* =========================================================================
   Alert Box
   ========================================================================= */

.einv-alert {
    display: flex;
    gap: 14px;
    padding: 1.25rem 1.5rem;
    border-radius: 12px;
    background: #fff3e0;
    border-left: 4px solid #e65100;
    margin-bottom: 2.5rem;
}

.einv-alert svg {
    flex-shrink: 0;
    color: #e65100;
    margin-top: 2px;
}

.einv-alert strong {
    display: block;
    color: #bf360c;
    margin-bottom: 0.4rem;
    font-size: .95rem;
}

.einv-alert p {
    font-size: .88rem;
    color: #4e342e;
    line-height: 1.6;
    margin: 0 0 0.3rem;
}

.einv-alert p:last-child {
    margin-bottom: 0;
}

.einv-alert--red {
    background: #fce4ec;
    border-left-color: #c62828;
}

.einv-alert--red svg {
    color: #c62828;
}

.einv-alert--red strong {
    color: #b71c1c;
}

.einv-alert--red p {
    color: #3e2723;
}

/* =========================================================================
   Services Grid (Service page)
   ========================================================================= */

.einv-services {
    margin-bottom: 2.5rem;
}

.einv-services h2 {
    font-family: var(--font-heading, 'DM Serif Display', serif);
    font-size: 1.5rem;
    color: var(--color-dark, #1a1a2e);
    text-align: center;
    margin-bottom: 1.5rem;
}

.einv-services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

.einv-service-card {
    background: #fff;
    border: 1px solid var(--color-border, #e8e8ee);
    border-radius: 12px;
    padding: 1.5rem;
    transition: box-shadow .3s ease;
}

.einv-service-card:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, .06);
}

.einv-service-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(211, 47, 47, .08), rgba(211, 47, 47, .15));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary, #d32f2f);
    margin-bottom: 1rem;
}

.einv-service-card h3 {
    font-size: 1.05rem;
    color: var(--color-dark, #1a1a2e);
    margin-bottom: 0.75rem;
}

.einv-service-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.einv-service-card li {
    position: relative;
    padding-left: 1.25rem;
    margin-bottom: 0.5rem;
    font-size: .88rem;
    color: var(--color-text, #555770);
    line-height: 1.5;
}

.einv-service-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary, #d32f2f);
    font-weight: 700;
}

/* =========================================================================
   Process Steps (Service page)
   ========================================================================= */

.einv-process {
    margin-bottom: 2.5rem;
}

.einv-process h2 {
    font-family: var(--font-heading, 'DM Serif Display', serif);
    font-size: 1.5rem;
    color: var(--color-dark, #1a1a2e);
    text-align: center;
    margin-bottom: 1.5rem;
}

.einv-process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.einv-process-step {
    text-align: center;
    position: relative;
}

.einv-process-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-primary, #d32f2f);
    color: #fff;
    font-size: .9rem;
    font-weight: 700;
    margin: 0 auto 0.75rem;
}

.einv-process-info strong {
    display: block;
    font-size: .9rem;
    color: var(--color-dark, #1a1a2e);
    margin-bottom: 0.3rem;
}

.einv-process-info p {
    font-size: .8rem;
    color: var(--color-text-light, #8a8ca5);
    line-height: 1.5;
    margin: 0;
}

/* =========================================================================
   FAQ (Service page)
   ========================================================================= */

.einv-faq {
    margin-bottom: 2.5rem;
}

.einv-faq h2 {
    font-family: var(--font-heading, 'DM Serif Display', serif);
    font-size: 1.5rem;
    color: var(--color-dark, #1a1a2e);
    text-align: center;
    margin-bottom: 1.5rem;
}

.einv-faq-item {
    border: 1px solid var(--color-border, #e8e8ee);
    border-radius: 10px;
    margin-bottom: 0.75rem;
    overflow: hidden;
    transition: box-shadow .2s ease;
}

.einv-faq-item:hover {
    box-shadow: 0 2px 10px rgba(0, 0, 0, .04);
}

.einv-faq-item[open] {
    border-color: var(--color-primary, #d32f2f);
}

.einv-faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 1rem 1.25rem;
    font-size: .95rem;
    font-weight: 600;
    color: var(--color-dark, #1a1a2e);
    cursor: pointer;
    list-style: none;
}

.einv-faq-q::-webkit-details-marker {
    display: none;
}

.einv-faq-q svg {
    flex-shrink: 0;
    transition: transform .25s ease;
    color: var(--color-text-light, #8a8ca5);
}

.einv-faq-item[open] .einv-faq-q svg {
    transform: rotate(180deg);
}

.einv-faq-a {
    padding: 0 1.25rem 1rem;
}

.einv-faq-a p {
    font-size: .9rem;
    color: var(--color-text, #555770);
    line-height: 1.7;
    margin: 0;
}

/* =========================================================================
   CTA
   ========================================================================= */

.einv-cta {
    text-align: center;
    background: linear-gradient(135deg, var(--color-dark, #1a1a2e) 0%, #2d2d4e 100%);
    color: #fff;
    padding: 2.5rem 2rem;
    border-radius: 16px;
    margin-bottom: 2rem;
}

.einv-cta h2 {
    font-family: var(--font-heading, 'DM Serif Display', serif);
    font-size: 1.5rem;
    color: #fff;
    margin-bottom: 0.75rem;
}

.einv-cta p {
    font-size: .95rem;
    color: rgba(255, 255, 255, .8);
    margin-bottom: 1.5rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.einv-cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.einv-cta .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.einv-cta .btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, .3);
    background: transparent;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: .9rem;
    text-decoration: none;
    transition: border-color .3s, background .3s;
}

.einv-cta .btn-outline:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, .1);
    color: #fff;
}

/* =========================================================================
   Guide Link (Service page)
   ========================================================================= */

.einv-guide-link {
    text-align: center;
    font-size: .9rem;
    color: var(--color-text-light, #8a8ca5);
}

.einv-guide-link a {
    color: var(--color-primary, #d32f2f);
    font-weight: 600;
}

/* =========================================================================
   Lists & Grids (Guide page)
   ========================================================================= */

.einv-list-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1rem;
}

.einv-list-card {
    background: var(--color-light, #f7f7fa);
    border-radius: 10px;
    padding: 1.25rem;
}

.einv-list-card strong {
    display: block;
    font-size: .9rem;
    color: var(--color-dark, #1a1a2e);
    margin-bottom: 0.6rem;
}

.einv-list-card p {
    font-size: .85rem;
    color: var(--color-text, #555770);
    line-height: 1.6;
    margin: 0;
}

.einv-list-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.einv-list-card li {
    padding-left: 1rem;
    margin-bottom: 0.35rem;
    font-size: .85rem;
    color: var(--color-text, #555770);
    position: relative;
}

.einv-list-card li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary, #d32f2f);
    font-weight: 700;
}

.einv-styled-list {
    list-style: none;
    padding: 0;
    margin: 0 0 1rem;
}

.einv-styled-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    font-size: .9rem;
    color: var(--color-text, #555770);
    line-height: 1.6;
}

.einv-styled-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-primary, #d32f2f);
    font-weight: 700;
}

/* =========================================================================
   Formats Grid (Guide page)
   ========================================================================= */

.einv-formats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1rem;
}

.einv-format-card {
    background: var(--color-light, #f7f7fa);
    border-radius: 10px;
    padding: 1.25rem;
    text-align: center;
}

.einv-format-card strong {
    display: block;
    font-size: 1rem;
    color: var(--color-primary, #d32f2f);
    margin-bottom: 0.5rem;
}

.einv-format-card p {
    font-size: .82rem;
    color: var(--color-text, #555770);
    line-height: 1.5;
    margin: 0;
}

/* =========================================================================
   Table (Guide page)
   ========================================================================= */

.einv-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
    font-size: .9rem;
}

.einv-table th,
.einv-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border, #e8e8ee);
}

.einv-table th {
    background: var(--color-dark, #1a1a2e);
    color: #fff;
    font-weight: 600;
    font-size: .85rem;
}

.einv-table th:first-child {
    border-radius: 8px 0 0 0;
}

.einv-table th:last-child {
    border-radius: 0 8px 0 0;
}

.einv-table td {
    color: var(--color-text, #555770);
}

.einv-table tr:last-child td {
    border-bottom: none;
}

/* =========================================================================
   Checklist (Guide page)
   ========================================================================= */

.einv-checklist {
    background: var(--color-light, #f7f7fa);
    border-radius: 12px;
    padding: 1.5rem;
}

.einv-check-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 0.75rem;
    font-size: .9rem;
    color: var(--color-text, #555770);
    line-height: 1.5;
}

.einv-check-item:last-child {
    margin-bottom: 0;
}

.einv-check-box {
    flex-shrink: 0;
    font-size: 1.1rem;
}

/* =========================================================================
   Sources (Guide page)
   ========================================================================= */

.einv-sources {
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border, #e8e8ee);
    font-size: .82rem;
    color: var(--color-text-light, #8a8ca5);
}

.einv-sources strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--color-dark, #1a1a2e);
}

.einv-sources ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.5rem;
}

.einv-sources a {
    color: var(--color-primary, #d32f2f);
}

/* =========================================================================
   Responsive
   ========================================================================= */

@media (max-width: 768px) {
    .einv-services-grid {
        grid-template-columns: 1fr;
    }

    .einv-process-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .einv-list-grid {
        grid-template-columns: 1fr;
    }

    .einv-formats-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 520px) {
    .einv-process-steps {
        grid-template-columns: 1fr;
    }

    .einv-cta {
        padding: 2rem 1.25rem;
    }

    .einv-cta-actions {
        flex-direction: column;
        align-items: center;
    }

    .einv-table {
        font-size: .8rem;
    }

    .einv-table th,
    .einv-table td {
        padding: 0.5rem 0.6rem;
    }
}