/* =========================================================
   INDIRA GAS BLOG DETAILS PAGE
   Responsive Desktop + Mobile
========================================================= */

:root {
    --primary: #c7191e;
    --primary-dark: #970f14;
    --primary-light: #fff1f1;

    --dark: #171717;
    --dark-soft: #292929;

    --text: #454545;
    --text-light: #707070;

    --white: #ffffff;
    --light: #f7f8fa;
    --border: #e8e8e8;

    --shadow: 0 15px 45px rgba(0, 0, 0, 0.08);

    --container: 1240px;
}


/* =========================================================
   RESET
========================================================= */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Arial,
        sans-serif;

    background: #ffffff;
    color: var(--text);
    line-height: 1.75;

    overflow-x: hidden;
}

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

a {
    text-decoration: none;
}

.container {
    width: min(var(--container), calc(100% - 40px));
    margin: 0 auto;
}


/* =========================================================
   BREADCRUMB
========================================================= */

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;

    gap: 9px;

    padding: 18px 0;

    font-size: 13px;
    color: #777;
}

.breadcrumb a {
    color: var(--primary);
    font-weight: 600;
}

.breadcrumb span:last-child {
    color: #777;
}


/* =========================================================
   HERO
========================================================= */

.blog-hero {
    position: relative;

    background:
        radial-gradient(
            circle at 85% 25%,
            rgba(255, 255, 255, 0.12),
            transparent 28%
        ),
        linear-gradient(
            135deg,
            #720b0f 0%,
            #b9151b 48%,
            #d32228 100%
        );

    color: #fff;

    padding: 78px 0 92px;

    overflow: hidden;
}

.blog-hero::before {
    content: "";

    position: absolute;

    width: 430px;
    height: 430px;

    border-radius: 50%;

    right: -170px;
    top: -190px;

    background: rgba(255,255,255,0.07);
}

.blog-hero::after {
    content: "";

    position: absolute;

    width: 280px;
    height: 280px;

    border-radius: 50%;

    left: -150px;
    bottom: -190px;

    background: rgba(0,0,0,0.08);
}

.hero-content {
    position: relative;
    z-index: 2;

    max-width: 940px;
}

.blog-category {
    display: inline-flex;

    padding: 7px 15px;

    border: 1px solid rgba(255,255,255,0.35);

    border-radius: 100px;

    font-size: 11px;
    font-weight: 800;

    letter-spacing: 1.4px;

    margin-bottom: 20px;
}

.blog-hero h1 {
    max-width: 1000px;

    font-size: clamp(36px, 5vw, 62px);

    line-height: 1.13;

    letter-spacing: -1.6px;

    margin-bottom: 23px;

    color: #fff;
}

.hero-description {
    max-width: 800px;

    color: rgba(255,255,255,0.88);

    font-size: 18px;

    line-height: 1.75;

    margin-bottom: 26px;
}

.blog-meta {
    display: flex;

    align-items: center;

    flex-wrap: wrap;

    gap: 12px;

    font-size: 13px;

    color: rgba(255,255,255,0.82);
}

.blog-meta strong {
    color: #fff;
}

.meta-divider {
    opacity: 0.5;
}


/* =========================================================
   FEATURED IMAGE
========================================================= */

.featured-image-section {
    background: #f6f6f6;

    padding-bottom: 70px;
}

.featured-image-wrapper {
    position: relative;

    margin-top: -55px;

    z-index: 5;

    overflow: hidden;

    border-radius: 22px;

    background:
        linear-gradient(
            135deg,
            #7d1015,
            #c7191e
        );

    box-shadow: 0 25px 70px rgba(0,0,0,0.18);
}

.featured-image {
    width: 100%;

    height: 540px;

    object-fit: cover;

    transition: transform 0.5s ease;
}

.featured-image-wrapper:hover .featured-image {
    transform: scale(1.025);
}

.image-overlay-text {
    position: absolute;

    left: 45px;
    bottom: 38px;

    color: #fff;

    display: flex;

    flex-direction: column;

    gap: 2px;

    text-shadow: 0 3px 15px rgba(0,0,0,0.5);
}

.image-overlay-text span {
    font-size: 13px;

    font-weight: 800;

    letter-spacing: 2px;
}

.image-overlay-text strong {
    font-size: 29px;

    line-height: 1.2;
}


/* =========================================================
   CONTENT SECTION
========================================================= */

.blog-content-section {
    background: #f6f6f6;

    padding: 0 0 100px;
}

.blog-layout {
    display: grid;

    grid-template-columns:
        minmax(0, 1fr)
        330px;

    gap: 55px;

    align-items: start;
}


/* =========================================================
   ARTICLE
========================================================= */

.blog-article {
    background: #fff;

    padding: 60px;

    border-radius: 20px;

    box-shadow: var(--shadow);
}

.blog-article section {
    scroll-margin-top: 35px;

    margin-top: 58px;
}

.article-intro {
    font-size: 18px;

    line-height: 1.9;

    margin-bottom: 50px;
}

.article-intro p {
    margin-bottom: 22px;
}

.blog-article p {
    margin-bottom: 20px;
}

.blog-article h2 {
    position: relative;

    color: var(--dark);

    font-size: 31px;

    line-height: 1.25;

    letter-spacing: -0.6px;

    margin-bottom: 20px;

    padding-left: 18px;
}

.blog-article h2::before {
    content: "";

    position: absolute;

    left: 0;
    top: 5px;

    width: 5px;
    height: 28px;

    border-radius: 5px;

    background: var(--primary);
}

.blog-article h3 {
    color: var(--dark);

    font-size: 21px;

    line-height: 1.35;

    margin: 30px 0 13px;
}

.blog-article strong {
    color: #242424;
}


/* =========================================================
   HIGHLIGHT BOX
========================================================= */

.highlight-box {
    display: flex;

    gap: 18px;

    padding: 24px;

    margin: 28px 0;

    border-radius: 14px;

    background: var(--primary-light);

    border: 1px solid #ffd8d9;
}

.highlight-icon {
    flex: 0 0 40px;

    width: 40px;
    height: 40px;

    display: grid;

    place-items: center;

    border-radius: 50%;

    background: var(--primary);

    color: #fff;

    font-weight: 900;
}

.highlight-box h3 {
    margin: 0 0 6px;

    font-size: 18px;
}


/* =========================================================
   LISTS
========================================================= */

.check-list,
.document-list {
    list-style: none;

    display: grid;

    gap: 10px;

    margin: 22px 0 25px;
}

.check-list li,
.document-list li {
    position: relative;

    padding: 12px 15px 12px 44px;

    border-radius: 9px;

    background: #fafafa;

    border: 1px solid #eeeeee;
}

.check-list li::before,
.document-list li::before {
    content: "✓";

    position: absolute;

    left: 15px;
    top: 11px;

    width: 20px;
    height: 20px;

    display: grid;

    place-items: center;

    border-radius: 50%;

    background: var(--primary);

    color: #fff;

    font-size: 11px;

    font-weight: 800;
}


/* =========================================================
   STEPS
========================================================= */

.steps {
    display: grid;

    gap: 16px;

    margin-top: 30px;
}

.step-card {
    display: grid;

    grid-template-columns: 58px 1fr;

    gap: 20px;

    padding: 24px;

    border: 1px solid var(--border);

    border-radius: 14px;

    background: #fff;

    transition:
        transform 0.25s ease,
        box-shadow 0.25s ease,
        border-color 0.25s ease;
}

.step-card:hover {
    transform: translateY(-3px);

    border-color: #f0b4b6;

    box-shadow: 0 15px 35px rgba(0,0,0,0.07);
}

.step-number {
    width: 52px;
    height: 52px;

    display: grid;

    place-items: center;

    border-radius: 13px;

    background: var(--primary-light);

    color: var(--primary);

    font-weight: 900;

    font-size: 14px;
}

.step-card h3 {
    margin: 0 0 10px;

    font-size: 19px;
}

.step-card p {
    margin-bottom: 10px;
}


/* =========================================================
   INFO CARDS
========================================================= */

.info-grid {
    display: grid;

    grid-template-columns: repeat(2, 1fr);

    gap: 16px;

    margin-top: 30px;
}

.info-card {
    padding: 25px;

    border: 1px solid var(--border);

    border-radius: 15px;

    background: #fff;
}

.info-card > span {
    display: inline-flex;

    margin-bottom: 14px;

    color: var(--primary);

    font-size: 12px;

    font-weight: 900;

    letter-spacing: 1px;
}

.info-card h3 {
    margin: 0 0 9px;

    font-size: 18px;
}

.info-card p {
    font-size: 14px;

    line-height: 1.7;

    margin: 0;
}

.notice-box {
    padding: 20px 22px;

    margin-top: 20px;

    background: #fff9e9;

    border: 1px solid #f1dfab;

    border-radius: 12px;

    font-size: 14px;
}


/* =========================================================
   INVESTMENT
========================================================= */

.investment-note {
    padding: 28px;

    margin-top: 30px;

    border-radius: 15px;

    background:
        linear-gradient(
            135deg,
            #fff4f4,
            #fffafa
        );

    border-left: 5px solid var(--primary);
}

.investment-note h3 {
    margin-top: 0;
}


/* =========================================================
   PRODUCTS
========================================================= */

.product-grid {
    display: grid;

    grid-template-columns:
        repeat(4, 1fr);

    gap: 14px;

    margin: 30px 0;
}

.product-card {
    padding: 25px 18px;

    text-align: center;

    border-radius: 14px;

    background: var(--dark);

    color: #fff;
}

.product-card span {
    display: block;

    color: #ffb8ba;

    font-size: 13px;

    font-weight: 800;

    letter-spacing: 1px;

    margin-bottom: 7px;
}

.product-card h3 {
    color: #fff;

    font-size: 16px;

    margin: 0;
}


/* =========================================================
   SUPPORT
========================================================= */

.support-grid {
    display: grid;

    grid-template-columns: repeat(2, 1fr);

    gap: 12px;

    margin: 30px 0;
}

.support-item {
    display: flex;

    align-items: center;

    gap: 12px;

    padding: 15px 17px;

    border-radius: 10px;

    background: #fafafa;

    border: 1px solid #eeeeee;
}

.support-item span {
    width: 24px;
    height: 24px;

    display: grid;

    place-items: center;

    border-radius: 50%;

    background: var(--primary);

    color: #fff;

    font-size: 11px;

    font-weight: 900;
}

.support-item strong {
    font-size: 14px;
}


/* =========================================================
   LOCATION
========================================================= */

.location-points {
    display: grid;

    gap: 16px;

    margin-top: 28px;
}

.location-points > div {
    padding: 22px;

    border-left: 3px solid var(--primary);

    background: #fafafa;

    border-radius: 0 12px 12px 0;
}

.location-points strong {
    display: block;

    color: var(--dark);

    margin-bottom: 7px;
}

.location-points p {
    margin: 0;

    font-size: 14px;
}


/* =========================================================
   SAFETY
========================================================= */

.safety-warning {
    margin-top: 25px;

    padding: 24px;

    border-radius: 14px;

    background: #fff5f5;

    border: 1px solid #f4caca;
}

.safety-warning strong {
    display: block;

    color: var(--primary);

    margin-bottom: 6px;
}

.safety-warning p {
    margin: 0;

    font-size: 14px;
}


/* =========================================================
   FAQ
========================================================= */

.faq-list {
    display: grid;

    gap: 12px;

    margin-top: 28px;
}

.faq-list details {
    border: 1px solid var(--border);

    border-radius: 12px;

    overflow: hidden;

    background: #fff;
}

.faq-list summary {
    cursor: pointer;

    list-style: none;

    position: relative;

    padding: 19px 55px 19px 20px;

    color: var(--dark);

    font-size: 16px;

    font-weight: 700;
}

.faq-list summary::-webkit-details-marker {
    display: none;
}

.faq-list summary::after {
    content: "+";

    position: absolute;

    right: 20px;
    top: 16px;

    font-size: 22px;

    color: var(--primary);

    font-weight: 400;
}

.faq-list details[open] summary::after {
    content: "−";
}

.faq-list details p {
    padding: 0 20px 20px;

    margin: 0;

    color: var(--text-light);

    font-size: 14px;
}


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

.article-cta {
    position: relative;

    overflow: hidden;

    padding: 48px;

    border-radius: 20px;

    background:
        radial-gradient(
            circle at 90% 10%,
            rgba(255,255,255,0.14),
            transparent 25%
        ),
        linear-gradient(
            135deg,
            #750b10,
            #c7191e
        );

    color: #fff;
}

.article-cta::after {
    content: "";

    position: absolute;

    width: 240px;
    height: 240px;

    right: -100px;
    bottom: -140px;

    border-radius: 50%;

    background: rgba(255,255,255,0.06);
}

.cta-content {
    position: relative;

    z-index: 2;

    max-width: 760px;
}

.cta-label {
    font-size: 11px;

    font-weight: 900;

    letter-spacing: 1.5px;

    opacity: 0.85;
}

.article-cta h2 {
    color: #fff;

    padding: 0;

    margin: 9px 0 17px;

    font-size: 34px;
}

.article-cta h2::before {
    display: none;
}

.article-cta p {
    color: rgba(255,255,255,0.87);

    font-size: 15px;
}

.article-cta strong {
    color: #fff;
}

.cta-buttons {
    display: flex;

    flex-wrap: wrap;

    gap: 12px;

    margin-top: 25px;
}

.btn {
    display: inline-flex;

    align-items: center;

    justify-content: center;

    min-height: 48px;

    padding: 0 22px;

    border-radius: 8px;

    font-size: 14px;

    font-weight: 800;

    transition: 0.25s ease;
}

.btn-primary {
    background: #fff;

    color: var(--primary);
}

.btn-primary:hover {
    transform: translateY(-2px);

    box-shadow: 0 10px 25px rgba(0,0,0,0.18);
}

.btn-outline {
    border: 1px solid rgba(255,255,255,0.5);

    color: #fff;
}

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


/* =========================================================
   CONTACT BOX
========================================================= */

.contact-box {
    padding: 35px;

    border-radius: 17px;

    background: #f8f8f8;

    border: 1px solid var(--border);
}

.contact-box h2 {
    padding: 0;

    margin-bottom: 10px;
}

.contact-box h2::before {
    display: none;
}

.contact-box > p {
    font-size: 14px;
}

.contact-details {
    display: grid;

    grid-template-columns: repeat(3, 1fr);

    gap: 12px;

    margin-top: 25px;
}

.contact-details > div {
    padding: 18px;

    border-radius: 10px;

    background: #fff;

    border: 1px solid #e9e9e9;
}

.contact-details span {
    display: block;

    color: #888;

    font-size: 11px;

    font-weight: 700;

    text-transform: uppercase;

    letter-spacing: 0.8px;

    margin-bottom: 5px;
}

.contact-details a {
    color: var(--primary);

    font-size: 14px;

    font-weight: 700;

    word-break: break-word;
}


/* =========================================================
   SIDEBAR
========================================================= */

.blog-sidebar {
    position: sticky;

    top: 25px;

    display: grid;

    gap: 20px;
}

.sidebar-card {
    background: #fff;

    border-radius: 16px;

    border: 1px solid var(--border);

    overflow: hidden;

    box-shadow: 0 10px 30px rgba(0,0,0,0.04);
}

.toc-card {
    padding: 25px;
}

.toc-card h3 {
    color: var(--dark);

    font-size: 19px;

    margin-bottom: 16px;

    padding-bottom: 15px;

    border-bottom: 1px solid var(--border);
}

.toc-card nav {
    display: grid;

    gap: 2px;
}

.toc-card nav a {
    padding: 8px 9px;

    border-radius: 6px;

    color: #666;

    font-size: 13px;

    line-height: 1.45;

    transition: 0.2s ease;
}

.toc-card nav a:hover {
    color: var(--primary);

    background: var(--primary-light);
}


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

.sidebar-cta {
    position: relative;

    overflow: hidden;

    padding: 30px;

    border-radius: 16px;

    background:
        linear-gradient(
            145deg,
            #770b10,
            #c7191e
        );

    color: #fff;

    box-shadow: 0 15px 35px rgba(199,25,30,0.18);
}

.sidebar-cta span {
    font-size: 10px;

    letter-spacing: 1.5px;

    font-weight: 900;

    opacity: 0.8;
}

.sidebar-cta h3 {
    margin: 10px 0 12px;

    color: #fff;

    font-size: 23px;

    line-height: 1.3;
}

.sidebar-cta p {
    font-size: 13px;

    line-height: 1.7;

    color: rgba(255,255,255,0.82);

    margin-bottom: 20px;
}

.sidebar-cta > a:not(.sidebar-phone) {
    display: flex;

    align-items: center;

    justify-content: center;

    min-height: 44px;

    padding: 0 15px;

    border-radius: 7px;

    background: #fff;

    color: var(--primary);

    font-size: 13px;

    font-weight: 800;
}

.sidebar-phone {
    display: block;

    margin-top: 13px;

    color: #fff;

    text-align: center;

    font-size: 14px;

    font-weight: 700;
}


/* =========================================================
   TABLET
========================================================= */

@media (max-width: 1100px) {

    .blog-layout {
        grid-template-columns:
            minmax(0, 1fr)
            280px;

        gap: 30px;
    }

    .blog-article {
        padding: 45px;
    }

    .featured-image {
        height: 430px;
    }

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

}


/* =========================================================
   MOBILE
========================================================= */

@media (max-width: 800px) {

    .container {
        width: min(
            var(--container),
            calc(100% - 28px)
        );
    }

    .breadcrumb {
        padding: 14px 0;

        font-size: 11px;

        line-height: 1.5;
    }

    .blog-hero {
        padding: 55px 0 75px;
    }

    .blog-hero h1 {
        font-size: 36px;

        letter-spacing: -0.8px;
    }

    .hero-description {
        font-size: 15px;
    }

    .blog-meta {
        font-size: 11px;

        gap: 7px;
    }

    .featured-image-section {
        padding-bottom: 35px;
    }

    .featured-image-wrapper {
        margin-top: -42px;

        border-radius: 15px;
    }

    .featured-image {
        height: 300px;
    }

    .image-overlay-text {
        left: 22px;

        bottom: 22px;
    }

    .image-overlay-text strong {
        font-size: 22px;
    }

    .blog-layout {
        display: flex;

        flex-direction: column;

        gap: 25px;
    }

    .blog-article {
        width: 100%;

        padding: 30px 20px;

        border-radius: 14px;
    }

    .blog-article section {
        margin-top: 45px;
    }

    .article-intro {
        font-size: 15px;

        line-height: 1.8;

        margin-bottom: 35px;
    }

    .blog-article h2 {
        font-size: 25px;

        padding-left: 14px;
    }

    .blog-article h2::before {
        width: 4px;

        height: 23px;
    }

    .blog-article h3 {
        font-size: 19px;
    }

    .blog-sidebar {
        position: static;

        width: 100%;

        order: -1;
    }

    .toc-card {
        padding: 20px;
    }

    .toc-card nav {
        grid-template-columns: repeat(2, 1fr);

        gap: 3px;
    }

    .toc-card nav a {
        font-size: 11px;

        padding: 8px;
    }

    .step-card {
        grid-template-columns: 45px 1fr;

        gap: 13px;

        padding: 19px;
    }

    .step-number {
        width: 43px;
        height: 43px;

        border-radius: 10px;

        font-size: 12px;
    }

    .step-card h3 {
        font-size: 17px;
    }

    .step-card p {
        font-size: 14px;
    }

    .info-grid {
        grid-template-columns: 1fr;
    }

    .support-grid {
        grid-template-columns: 1fr;
    }

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

    .product-card {
        padding: 20px 12px;
    }

    .article-cta {
        padding: 32px 22px;
    }

    .article-cta h2 {
        font-size: 27px;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .contact-box {
        padding: 25px 20px;
    }

    .contact-details {
        grid-template-columns: 1fr;
    }

}


/* =========================================================
   SMALL MOBILE
========================================================= */

@media (max-width: 480px) {

    .blog-hero {
        padding: 45px 0 65px;
    }

    .blog-hero h1 {
        font-size: 30px;
    }

    .blog-category {
        font-size: 9px;

        padding: 6px 11px;
    }

    .featured-image {
        height: 235px;
    }

    .image-overlay-text span {
        font-size: 9px;
    }

    .image-overlay-text strong {
        font-size: 18px;
    }

    .toc-card nav {
        grid-template-columns: 1fr;
    }

    .product-grid {
        grid-template-columns: 1fr;
    }

    .check-list li,
    .document-list li {
        font-size: 13px;

        padding-left: 40px;
    }

    .article-cta h2 {
        font-size: 24px;
    }

}