@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Manrope:wght@500;600;700;800&display=swap');

/* =========================================================
   DEEP YOG SOLAR - UNIFIED THEME TOKENS
========================================================= */

:root {
    --navy-deep: #0A192F;
    --navy-surface: #112240;
    --solar-gold: #F59E0B;
    --solar-amber: #D97706;
    --solar-gold-soft: rgba(245, 158, 11, 0.12);
    --solar-gold-border: rgba(245, 158, 11, 0.25);
    --text-main: #0F172A;
    --text-muted: #64748B;
    --bg-light: #F8FAFC;
    --bg-white: #FFFFFF;
    --border-light: #E2E8F0;
    --radius: 16px;
    --shadow-sm: 0 4px 12px rgba(10, 25, 47, 0.05);
    --shadow-md: 0 12px 32px rgba(10, 25, 47, 0.08);
    --shadow-lg: 0 24px 50px rgba(10, 25, 47, 0.14);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--text-main);
    background-color: var(--bg-white);
    line-height: 1.65;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.25s ease;
}

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

.container {
    width: min(1200px, 92%);
    margin: 0 auto;
}

.container-narrow {
    width: min(820px, 92%);
    margin: 0 auto;
}

.section {
    padding: 95px 0;
}

.bg-light {
    background-color: var(--bg-light);
}

.text-center {
    text-align: center;
}

h1, h2, h3, h4 {
    font-family: "Manrope", sans-serif;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--navy-deep);
}

.section-label {
    display: inline-block;
    color: var(--solar-amber);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-heading h2 {
    font-size: clamp(28px, 3.5vw, 42px);
    margin-bottom: 14px;
}

.section-heading h2 span {
    color: var(--solar-gold);
}

.section-heading p {
    max-width: 640px;
    margin: 0 auto;
    color: var(--text-muted);
    font-size: 16px;
}

/* =========================================================
   BUTTONS
========================================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-family: "Manrope", sans-serif;
    font-weight: 700;
    font-size: 14px;
    border-radius: 50px;
    cursor: pointer;
    border: none;
    transition: 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--solar-gold), var(--solar-amber));
    color: #0A192F;
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(245, 158, 11, 0.45);
    background: linear-gradient(135deg, #FBBF24, #F59E0B);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.08);
    color: #FFFFFF;
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.16);
    border-color: #FFFFFF;
}

/* buttons inside the article body must not inherit the .article-body <a> link color/underline */
.article-body a.btn {
    text-decoration: none;
}

.article-body a.btn-primary {
    color: #0A192F;
}

.article-body a.btn-primary:hover {
    color: #0A192F;
}

.article-body a.btn-outline {
    color: #FFFFFF;
}

/* =========================================================
   UNIVERSAL HEADER
========================================================= */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(7, 17, 31, 0.92);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: 0.3s ease;
}

.header.scrolled {
    background: rgba(7, 17, 31, 0.96);
    backdrop-filter: blur(15px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.header.scrolled .nav-container {
    height: 64px;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 25px;
    height: 78px;
    transition: height 0.3s ease;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: white;
    flex-shrink: 0;
}

.logo img {
    width: 44px;
    height: 44px;
    object-fit: contain;
    border-radius: 8px;
    background: white;
    padding: 2px;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-text strong {
    font-size: 16px;
    font-weight: 800;
    color: #FFFFFF;
    letter-spacing: 0.5px;
}

.logo-text span {
    font-size: 11px;
    color: var(--solar-gold);
    font-weight: 800;
    letter-spacing: 2px;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    font-size: 14px;
    font-weight: 600;
    color: #CBD5E1;
    position: relative;
    padding: 6px 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--solar-gold);
}

.nav-link::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--solar-gold);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.header-btn {
    padding: 10px 22px;
    background: var(--solar-gold);
    color: #0A192F;
    font-weight: 700;
    font-size: 13px;
    border-radius: 50px;
    white-space: nowrap;
    transition: 0.25s;
}

.header-btn:hover {
    background: #FBBF24;
    transform: translateY(-1px);
}

.menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: #FFFFFF;
    font-size: 26px;
    cursor: pointer;
}

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

.blog-hero {
    position: relative;
    padding: 150px 0 80px;
    background:
        linear-gradient(90deg, rgba(7, 17, 32, 0.96) 0%, rgba(7, 17, 32, 0.8) 60%, rgba(7, 17, 32, 0.5) 100%),
        url("https://images.unsplash.com/photo-1509391366360-2e959784a276?auto=format&fit=crop&w=2000&q=85")
        center/cover no-repeat;
    color: #FFFFFF;
}

.blog-hero .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;
    border-radius: 50px;
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.35);
    color: var(--solar-gold);
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 22px;
}

.blog-hero h1 {
    font-size: clamp(38px, 5vw, 62px);
    line-height: 1.08;
    letter-spacing: -1.5px;
    color: #FFFFFF;
    margin-bottom: 18px;
}

.blog-hero h1 span {
    color: var(--solar-gold);
}

.blog-hero p {
    font-size: 17px;
    color: #CBD5E1;
    max-width: 620px;
}

/* =========================================================
   BLOG LISTING GRID
========================================================= */

.blog-listing {
    background: var(--bg-light);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.blog-card {
    background: var(--bg-white);
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: 0.3s ease;
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-7px);
    box-shadow: var(--shadow-md);
    border-color: var(--solar-gold-border);
}

.blog-image {
    height: 190px;
    background: linear-gradient(135deg, #07111f, #1e3a5f);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--solar-gold);
    font-size: 30px;
    font-family: "Manrope", sans-serif;
    font-weight: 800;
    letter-spacing: 3px;
    position: relative;
    overflow: hidden;
}

.blog-image::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 70% 30%, rgba(245, 158, 11, 0.18), transparent 55%);
}

.blog-image img {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.blog-image:has(img)::after {
    display: none;
}

/* related-articles grid (bottom of each blog): 2 cards, centered */
.more-articles .blog-grid {
    grid-template-columns: repeat(3, 1fr);
}

.blog-content {
    padding: 26px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.blog-content small {
    color: var(--solar-amber);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 1.5px;
}

.blog-content h3 {
    font-size: 20px;
    line-height: 1.3;
    margin: 10px 0;
}

.blog-content p {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 18px;
    flex-grow: 1;
}

.blog-card-link {
    color: var(--solar-amber);
    font-size: 13px;
    font-weight: 800;
    align-self: flex-start;
}

.blog-card-link:hover {
    color: var(--solar-gold);
    padding-right: 4px;
}

.blog-meta {
    display: flex;
    gap: 14px;
    margin-bottom: 12px;
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 600;
}

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

.article-hero {
    position: relative;
    padding: 140px 0 60px;
    background:
        linear-gradient(90deg, rgba(7, 17, 32, 0.96) 0%, rgba(7, 17, 32, 0.82) 60%, rgba(7, 17, 32, 0.55) 100%),
        url("https://images.unsplash.com/photo-1466611653911-95081537e5b7?auto=format&fit=crop&w=2000&q=85")
        center/cover no-repeat;
    color: #FFFFFF;
}

.breadcrumb {
    font-size: 13px;
    color: #94A3B8;
    margin-bottom: 18px;
}

.breadcrumb a:hover {
    color: var(--solar-gold);
}

.article-category {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 50px;
    background: rgba(245, 158, 11, 0.14);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--solar-gold);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 1px;
    margin-bottom: 18px;
}

.article-hero h1 {
    font-size: clamp(30px, 4vw, 48px);
    line-height: 1.12;
    color: #FFFFFF;
    max-width: 820px;
    margin-bottom: 20px;
}

.article-hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 22px;
    font-size: 13px;
    color: #CBD5E1;
    font-weight: 600;
}

.article-hero-meta span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.article-body {
    padding: 70px 0 90px;
    background: var(--bg-white);
}

.article-body p {
    font-size: 16.5px;
    line-height: 1.85;
    color: #334155;
    margin-bottom: 22px;
}

.article-body h2 {
    font-size: 27px;
    margin: 42px 0 16px;
    color: var(--navy-deep);
}

.article-body h3 {
    font-size: 20px;
    margin: 30px 0 12px;
    color: var(--navy-deep);
}

.article-body ul,
.article-body ol {
    margin: 0 0 24px 4px;
    padding-left: 22px;
}

.article-body li {
    font-size: 16px;
    line-height: 1.8;
    color: #334155;
    margin-bottom: 10px;
    padding-left: 6px;
}

.article-body ul li::marker {
    color: var(--solar-gold);
}

.article-body strong {
    color: var(--navy-deep);
    font-weight: 700;
}

.article-body a {
    color: var(--solar-amber);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.article-body a:hover {
    color: var(--solar-gold);
}

.article-lead {
    font-size: 19px !important;
    line-height: 1.75 !important;
    color: var(--text-main) !important;
    font-weight: 500;
    padding-left: 20px;
    border-left: 4px solid var(--solar-gold);
}

.callout {
    background: var(--bg-light);
    border: 1px solid var(--border-light);
    border-left: 4px solid var(--solar-gold);
    border-radius: 12px;
    padding: 22px 26px;
    margin: 30px 0;
}

.callout h4 {
    font-size: 16px;
    margin-bottom: 8px;
    color: var(--navy-deep);
}

.callout p {
    font-size: 15px !important;
    margin-bottom: 0 !important;
    color: var(--text-muted) !important;
}

.key-points {
    background: var(--navy-deep);
    border-radius: var(--radius);
    padding: 32px 34px;
    margin: 34px 0;
    color: #FFFFFF;
}

.key-points h4 {
    color: var(--solar-gold);
    font-size: 14px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.key-points ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.key-points li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    color: #CBD5E1;
    margin-bottom: 12px;
    padding: 0;
}

.key-points li::before {
    content: "";
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    margin-top: 1px;
    border-radius: 50%;
    background: var(--solar-gold-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='13' height='13' viewBox='0 0 24 24' fill='none' stroke='%23F59E0B' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E") center no-repeat;
}

.references {
    margin-top: 40px;
    padding-top: 26px;
    border-top: 1px solid var(--border-light);
}

.references h4 {
    font-size: 15px;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.references ol {
    padding-left: 20px;
}

.references li {
    font-size: 13.5px;
    color: var(--text-muted);
    margin-bottom: 8px;
    line-height: 1.6;
}

.references a {
    color: var(--solar-amber);
    word-break: break-word;
}

.article-disclaimer {
    margin-top: 30px;
    font-size: 13px;
    color: var(--text-muted);
    font-style: italic;
    line-height: 1.7;
}

/* ARTICLE CTA + NEXT LINKS */

.article-cta {
    background: linear-gradient(135deg, #07111f, #112240);
    border-radius: var(--radius);
    padding: 44px 40px;
    text-align: center;
    margin-top: 50px;
    color: #FFFFFF;
}

.article-cta h3 {
    color: #FFFFFF;
    font-size: 26px;
    margin-bottom: 10px;
}

.article-cta p {
    color: #94A3B8;
    font-size: 15px;
    margin-bottom: 24px;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}

.more-articles {
    background: var(--bg-light);
}

/* =========================================================
   UNIVERSAL FOOTER
========================================================= */

.footer {
    background: #060F1D;
    color: #94A3B8;
    padding-top: 80px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.2fr 1.3fr;
    gap: 40px;
    padding-bottom: 60px;
}

.footer-brand .logo-text strong {
    color: #FFFFFF;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.65;
    margin: 18px 0 22px;
    color: #94A3B8;
}

.footer-social {
    display: flex;
    gap: 10px;
}

.footer-social a {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #CBD5E1;
    font-size: 13px;
    font-weight: 700;
}

.footer-social a:hover {
    background: var(--solar-gold);
    color: #0A192F;
    border-color: var(--solar-gold);
}

.footer-col h4 {
    color: #FFFFFF;
    font-size: 16px;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 11px;
}

.footer-col li a {
    font-size: 14px;
    color: #94A3B8;
}

.footer-col li a:hover {
    color: var(--solar-gold);
    padding-left: 4px;
}

.footer-contact-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contact-list p {
    font-size: 14px;
    color: #94A3B8;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-contact-list a:hover {
    color: var(--solar-gold);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 24px 0;
    font-size: 13px;
}

.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-legal {
    display: flex;
    gap: 20px;
}

.footer-legal a:hover {
    color: var(--solar-gold);
}

/* =========================================================
   FLOATING ACTION BUTTONS
========================================================= */

.floating-buttons {
    position: fixed;
    right: 20px;
    bottom: 24px;
    z-index: 900;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.float-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
    transition: 0.3s;
}

.float-btn:hover {
    transform: scale(1.1);
}

.call-btn { background: #0284C7; }
.whatsapp-btn { background: #22C55E; }
.enquiry-btn { background: var(--solar-gold); color: #0A192F; }

/* =========================================================
   RESPONSIVE
========================================================= */

@media (max-width: 1050px) {
    .navbar-menu {
        display: none;
        position: absolute;
        top: 78px;
        left: 4%;
        width: 92%;
        background: rgba(10, 25, 47, 0.98);
        border: 1px solid rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(16px);
        flex-direction: column;
        padding: 24px 20px;
        border-radius: 16px;
        box-shadow: var(--shadow-lg);
        gap: 6px;
    }

    .navbar-menu.active {
        display: flex;
    }

    .nav-link {
        width: 100%;
        padding: 10px 0;
        font-size: 15px;
    }

    .header-btn {
        display: none;
    }

    .menu-btn {
        display: block;
    }

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

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 35px;
    }
}

@media (max-width: 720px) {
    .section {
        padding: 65px 0;
    }

    .blog-hero {
        padding: 120px 0 60px;
    }

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

    .more-articles .blog-grid {
        grid-template-columns: 1fr;
    }

    .article-body {
        padding: 50px 0 70px;
    }

    .article-body h2 {
        font-size: 23px;
    }

    .article-cta {
        padding: 34px 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-bottom-inner {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .floating-buttons {
        right: 14px;
        bottom: 16px;
    }

    .float-btn {
        width: 44px;
        height: 44px;
    }
}