/* Price Clicker Flow — industry & company editorial hub */

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

:root {
    --primary-blue: #027FFF;
    --primary-blue-dark: #0266CC;
    --light-blue: #4DA3FF;
    --white: #ffffff;
    --black: #0a0a0a;
    --ink: #1a1f2e;
    --gray-light: #f4f6f9;
    --gray-mid: #e8ecf1;
    --gray-text: #5c6578;
    --accent-warm: #f0f7ff;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.65;
    color: var(--ink);
    background: var(--white);
}

.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
header {
    padding: 18px 0;
    background: var(--white);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--gray-mid);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-img {
    height: 40px;
    width: auto;
    display: block;
}

.flow-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--primary-blue);
    padding: 4px 10px;
    border-radius: 6px;
    background: var(--accent-warm);
}

nav {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.nav-text-link {
    color: var(--gray-text);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 8px;
    transition: color 0.2s, background 0.2s;
}

.nav-text-link:hover {
    color: var(--primary-blue);
    background: var(--accent-warm);
}

.btn-primary,
.btn-secondary {
    padding: 10px 22px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.25s ease;
    display: inline-block;
    border: 2px solid var(--primary-blue);
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-blue);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-blue-dark);
    border-color: var(--primary-blue-dark);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-blue);
}

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

/* Hero */
.flow-hero {
    background: linear-gradient(160deg, var(--ink) 0%, #1e3a5f 55%, var(--primary-blue-dark) 100%);
    color: var(--white);
    padding: 88px 0 96px;
}

.flow-hero .container {
    max-width: 820px;
    text-align: center;
}

.flow-hero-eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    opacity: 0.85;
    margin-bottom: 20px;
}

.flow-hero h1 {
    font-size: clamp(36px, 5vw, 52px);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 22px;
    letter-spacing: -0.02em;
}

.flow-hero-lead {
    font-size: clamp(18px, 2.2vw, 21px);
    line-height: 1.7;
    opacity: 0.92;
    max-width: 640px;
    margin: 0 auto 36px;
}

.flow-hero-actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

.flow-hero .btn-primary {
    border-color: var(--white);
    background: var(--white);
    color: var(--primary-blue);
}

.flow-hero .btn-primary:hover {
    background: var(--accent-warm);
    border-color: var(--accent-warm);
}

.flow-hero .btn-secondary {
    border-color: rgba(255, 255, 255, 0.5);
    color: var(--white);
}

.flow-hero .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
}

/* Mission strip */
.mission-strip {
    background: var(--accent-warm);
    border-bottom: 1px solid rgba(2, 127, 255, 0.12);
    padding: 28px 0;
}

.mission-strip p {
    text-align: center;
    font-size: 17px;
    color: var(--ink);
    max-width: 720px;
    margin: 0 auto;
    line-height: 1.65;
}

.mission-strip strong {
    color: var(--primary-blue);
}

/* Sections */
.section-heading {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--black);
}

.section-subheading {
    color: var(--gray-text);
    font-size: 17px;
    margin-bottom: 36px;
    max-width: 560px;
}

.topics-section,
.featured-section {
    padding: 72px 0;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.topic-card {
    background: var(--white);
    border: 1px solid var(--gray-mid);
    border-radius: 16px;
    padding: 28px;
    transition: box-shadow 0.25s, border-color 0.25s;
}

.topic-card:hover {
    border-color: rgba(2, 127, 255, 0.35);
    box-shadow: 0 8px 32px rgba(2, 127, 255, 0.08);
}

.topic-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--accent-warm);
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
}

.topic-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
}

.topic-card p {
    color: var(--gray-text);
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 18px;
}

.topic-card a {
    color: var(--primary-blue);
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
}

.topic-card a:hover {
    text-decoration: underline;
}

/* Article cards */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
}

.article-card {
    border: 1px solid var(--gray-mid);
    border-radius: 18px;
    overflow: hidden;
    transition: box-shadow 0.25s, transform 0.25s;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    background: var(--white);
}

.article-card:hover {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.article-card-image {
    height: 180px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, #1e4d8c 100%);
    display: flex;
    align-items: flex-end;
    padding: 20px;
}

.article-card-category {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 6px 12px;
    border-radius: 20px;
}

.article-card-body {
    padding: 24px 26px 28px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.article-card-body h3 {
    font-size: 22px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 12px;
    color: var(--black);
}

.article-card-body p {
    color: var(--gray-text);
    font-size: 15px;
    line-height: 1.65;
    flex: 1;
    margin-bottom: 18px;
}

.article-card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--gray-text);
}

.author-avatar-sm {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--gray-mid);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    color: var(--gray-text);
    flex-shrink: 0;
}

/* Article page */
.article-hero {
    background: var(--gray-light);
    border-bottom: 1px solid var(--gray-mid);
    padding: 48px 0 40px;
}

.article-hero .container {
    max-width: 760px;
}

.article-breadcrumb {
    font-size: 14px;
    margin-bottom: 20px;
}

.article-breadcrumb a {
    color: var(--primary-blue);
    text-decoration: none;
}

.article-breadcrumb a:hover {
    text-decoration: underline;
}

.article-breadcrumb span {
    color: var(--gray-text);
    margin: 0 8px;
}

.article-category-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--primary-blue);
    background: var(--accent-warm);
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 18px;
}

.article-hero h1 {
    font-size: clamp(32px, 4.5vw, 44px);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 28px;
    color: var(--black);
    letter-spacing: -0.02em;
}

.author-block {
    display: flex;
    align-items: center;
    gap: 16px;
    padding-top: 4px;
}

.author-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gray-mid) 0%, #c5cdd8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 2px solid var(--white);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.author-avatar svg {
    width: 28px;
    height: 28px;
    color: #8a94a6;
}

.author-info .author-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 2px;
}

.author-info .author-meta {
    font-size: 14px;
    color: var(--gray-text);
}

.article-layout {
    padding: 56px 0 88px;
}

.article-layout .container {
    max-width: 760px;
}

.article-body h2 {
    font-size: 28px;
    font-weight: 700;
    margin: 48px 0 18px;
    color: var(--black);
    line-height: 1.25;
}

.article-body h2:first-child {
    margin-top: 0;
}

.article-body h3 {
    font-size: 22px;
    font-weight: 700;
    margin: 36px 0 14px;
    color: var(--ink);
}

.article-body p {
    font-size: 18px;
    line-height: 1.8;
    color: #333;
    margin-bottom: 20px;
}

.article-body ul,
.article-body ol {
    margin: 0 0 24px 24px;
    font-size: 18px;
    line-height: 1.75;
    color: #333;
}

.article-body li {
    margin-bottom: 10px;
}

.article-body a {
    color: var(--primary-blue);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.article-body a:hover {
    color: var(--primary-blue-dark);
}

.article-pullquote {
    margin: 36px 0;
    padding: 28px 32px;
    border-left: 4px solid var(--primary-blue);
    background: var(--accent-warm);
    border-radius: 0 14px 14px 0;
}

.article-pullquote p {
    font-size: 19px;
    font-style: italic;
    color: var(--ink);
    margin: 0;
    line-height: 1.65;
}

.article-sources {
    margin-top: 56px;
    padding-top: 32px;
    border-top: 1px solid var(--gray-mid);
}

.article-sources h2 {
    font-size: 20px;
    margin-top: 0;
    margin-bottom: 16px;
}

.article-sources ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.article-sources li {
    margin-bottom: 12px;
    font-size: 15px;
}

.article-cta {
    margin-top: 48px;
    padding: 32px;
    background: var(--gray-light);
    border-radius: 16px;
    border: 1px solid var(--gray-mid);
    text-align: center;
}

.article-cta h3 {
    font-size: 22px;
    margin: 0 0 10px;
}

.article-cta p {
    font-size: 16px;
    color: var(--gray-text);
    margin-bottom: 20px;
}

/* Footer */
footer {
    background: var(--ink);
    color: rgba(255, 255, 255, 0.75);
    padding: 56px 0 28px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    font-size: 15px;
    line-height: 1.6;
    margin-top: 14px;
    max-width: 280px;
}

.footer-column h4 {
    color: var(--white);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 15px;
    margin-bottom: 10px;
    transition: color 0.2s;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    text-align: center;
    font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        align-items: stretch;
    }

    nav {
        justify-content: center;
    }

    .flow-hero {
        padding: 64px 0 72px;
    }

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

    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 480px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }

    nav .nav-text-link {
        display: none;
    }
}