/* ============================
   ConDrone Blog — Styles
   Extends main site design system
   ============================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    --chile-blue: #5B85AA;
    --chile-red: #E57373;
    --chile-white: #FFFFFF;
    --bg-main: #FAFAF8;
    --bg-warm: #F2F5F8;
    --bg-card: #FFFFFF;
    --pink: var(--chile-red);
    --pink-light: #FFEBEE;
    --sky: #90CAF9;
    --sky-light: #E3F2FD;
    --cta: var(--chile-blue);
    --cta-hover: #3E6282;
    --cta-light: rgba(91, 133, 170, 0.1);
    --text-dark: #111111;
    --text-mid: #546E7A;
    --text-light: #B0BEC5;
    --white: #FFFFFF;
    --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.08);
    --radius: 16px;
    --radius-lg: 24px;
    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, sans-serif;
    color: var(--text-dark);
    background: var(--bg-main);
    overflow-x: hidden;
    line-height: 1.7;
}

h1,
h2,
h3,
h4,
h5 {
    font-family: 'Outfit', sans-serif;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

em {
    color: var(--chile-red);
    font-style: normal;
}

/* ---------- NAVBAR (mirrored from main) ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 12px 0;
    background: rgba(250, 250, 248, 0.92);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    box-shadow: var(--shadow-sm);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-img {
    height: 60px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-mid);
}

.nav-links a:hover {
    color: var(--cta);
}

.nav-links a.active {
    color: var(--cta);
    font-weight: 700;
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--cta);
    color: var(--white);
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(91, 155, 213, 0.3);
}

.btn-cta:hover {
    background: var(--cta-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(91, 155, 213, 0.4);
    color: var(--white);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    margin: 6px 0;
    transition: var(--transition);
}

/* ---------- BLOG HERO ---------- */
.blog-hero {
    padding: 140px 0 60px;
    background: linear-gradient(135deg, var(--bg-main) 0%, var(--sky-light) 50%, var(--bg-warm) 100%);
    text-align: center;
}

.blog-hero h1 {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 12px;
}

.blog-hero p {
    font-size: 1.15rem;
    color: var(--text-mid);
    max-width: 560px;
    margin: 0 auto;
}

.blog-hero .blog-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--sky-light);
    color: var(--chile-blue);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

/* ---------- BLOG GRID ---------- */
.blog-grid-section {
    padding: 80px 0 100px;
}

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

.blog-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.blog-card-img {
    height: 220px;
    overflow: hidden;
}

.blog-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.blog-card:hover .blog-card-img img {
    transform: scale(1.08);
}

.blog-card-body {
    padding: 28px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.blog-tag {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.tag-blue {
    background: var(--sky-light);
    color: var(--chile-blue);
}

.tag-pink {
    background: var(--pink-light);
    color: #C0392B;
}

.tag-teal {
    background: #E0F2F1;
    color: #00796B;
}

.tag-sky {
    background: #E3F2FD;
    color: #1565C0;
}

.tag-green {
    background: #E8F5E9;
    color: #2E7D32;
}

.blog-date {
    font-size: 0.78rem;
    color: var(--text-light);
}

.blog-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.35;
}

.blog-card p {
    font-size: 0.9rem;
    color: var(--text-mid);
    line-height: 1.6;
    flex: 1;
}

.blog-card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--cta);
    font-weight: 600;
    font-size: 0.88rem;
    margin-top: 16px;
    transition: var(--transition);
}

.blog-card-link:hover {
    gap: 10px;
    color: var(--cta-hover);
}

/* ---------- ARTICLE PAGE ---------- */
.article-hero {
    padding: 140px 0 0;
    background: linear-gradient(135deg, var(--bg-main) 0%, var(--sky-light) 50%, var(--bg-warm) 100%);
}

.article-hero .container {
    max-width: 800px;
}

.article-hero .back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-mid);
    font-size: 0.88rem;
    font-weight: 500;
    margin-bottom: 20px;
    transition: var(--transition);
}

.article-hero .back-link:hover {
    color: var(--cta);
    gap: 9px;
}

.article-hero h1 {
    font-size: 2.6rem;
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 16px;
    max-width: 700px;
}

.article-hero .article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.article-hero .article-meta span {
    font-size: 0.85rem;
    color: var(--text-mid);
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-hero .article-meta i {
    color: var(--cta);
    font-size: 0.85rem;
}

.article-cover {
    width: 100%;
    height: 420px;
    object-fit: cover;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    box-shadow: var(--shadow-lg);
}

/* ---------- ARTICLE CONTENT ---------- */
.article-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 48px 24px 100px;
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--text-dark);
}

.article-content h2 {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-top: 48px;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.article-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-top: 32px;
    margin-bottom: 12px;
}

.article-content p {
    margin-bottom: 20px;
    color: #333;
}

.article-content ul,
.article-content ol {
    margin-bottom: 20px;
    padding-left: 24px;
}

.article-content li {
    margin-bottom: 8px;
    color: #333;
}

.article-content strong {
    color: var(--text-dark);
}

.article-content blockquote {
    border-left: 4px solid var(--cta);
    background: var(--cta-light);
    padding: 20px 24px;
    margin: 28px 0;
    border-radius: 0 var(--radius) var(--radius) 0;
    font-style: italic;
    color: var(--text-mid);
}

.article-content .highlight-box {
    background: linear-gradient(135deg, var(--sky-light), var(--bg-warm));
    border: 1px solid rgba(91, 133, 170, 0.2);
    border-radius: var(--radius);
    padding: 24px 28px;
    margin: 28px 0;
}

.article-content .highlight-box h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--cta);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.article-content .specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin: 24px 0;
}

.article-content .spec-item {
    background: var(--white);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 12px;
    padding: 16px 20px;
    text-align: center;
}

.article-content .spec-item .spec-value {
    font-family: 'Outfit', sans-serif;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--cta);
    display: block;
}

.article-content .spec-item .spec-label {
    font-size: 0.78rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ---------- CTA BANNER ---------- */
.article-cta {
    background: linear-gradient(135deg, #1A2A3A 0%, #2C3E50 100%);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
    margin: 48px 0;
}

.article-cta h3 {
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.article-cta p {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.article-cta .btn-cta {
    font-size: 1rem;
    padding: 14px 32px;
}

/* ---------- FOOTER (mirrored) ---------- */
.footer {
    background: var(--text-dark);
    padding: 60px 0 24px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer h5 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.88rem;
    line-height: 1.6;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.3);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .blog-hero h1 {
        font-size: 2rem;
    }

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

    .article-hero h1 {
        font-size: 1.8rem;
    }

    .article-cover {
        height: 260px;
    }

    .article-content {
        padding: 32px 16px 60px;
    }

    .article-content .specs-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .blog-hero {
        padding: 120px 0 40px;
    }

    .blog-card-img {
        height: 180px;
    }

    .article-cta {
        padding: 28px 20px;
    }
}