/* ================================================
   static/css/site.css — Zarik Design Blog + Hero + Footer
   Variant A: Pure CSS (iOS26 aesthetic)
   ================================================ */

/* --- variables --- */
:root {
    --max-width: 1200px;
    --radius-card: 2rem;         /* 32px */
    --radius-btn: 3rem;          /* pill */
    --accent-grad: linear-gradient(135deg, #f5c842 0%, #f0a500 100%);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.06);
    --shadow-card-hover: 0 8px 40px rgba(0, 0, 0, 0.12);
    --font-stack: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --color-text: #1a1a1a;
    --color-sub: #6b7280;
    --color-bg: #ffffff;
    --color-surface: #f5f5f7;
    --color-border: #e8e8ea;
    --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- global container --- */
.blog-container,
.hero-section,
.services-section,
.home-blog-section {
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

/* ================================================
   HERO
   ================================================ */
.hero-section {
    padding: 5rem 1.5rem 4rem;
}

.hero-inner {
    display: flex;
    align-items: flex-start;
    gap: 4rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.hero-text {
    flex: 1 1 55%;
    min-width: 0;
}

.hero-title {
    font-family: var(--font-stack);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    line-height: 0.95;
    letter-spacing: -0.05em;
    color: var(--color-text);
    margin: 0 0 1.5rem;
}

/* .highlight — yellow gradient text */
.highlight {
    background: var(--accent-grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-sub {
    font-family: var(--font-stack);
    font-size: clamp(1rem, 2vw, 1.25rem);
    font-weight: 500;
    color: var(--color-sub);
    max-width: 520px;
    line-height: 1.6;
    margin: 0 0 2rem;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.hero-social-proof {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.hero-avatars {
    display: flex;
}

.hero-avatars__avatar {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    border: 2px solid #fff;
    margin-left: -0.6rem;
}
.hero-avatars__avatar:first-child { margin-left: 0; }
.hero-avatars__avatar--1 { background: #d1d5db; }
.hero-avatars__avatar--2 { background: #9ca3af; }
.hero-avatars__avatar--3 { background: #6b7280; }

.hero-social-proof__text {
    font-weight: 700;
    font-size: 0.875rem;
    color: var(--color-text);
}

.hero-visual {
    flex: 1 1 40%;
    max-width: 480px;
}

.hero-visual__img {
    width: 100%;
    height: auto;
    display: block;
}

/* ================================================
   BUTTONS
   ================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-stack);
    font-size: 1rem;
    font-weight: 600;
    padding: 0.9rem 2.2rem;
    border-radius: var(--radius-btn);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
    -webkit-font-smoothing: antialiased;
}

.btn--primary {
    background: #1a1a1a;
    color: #fff;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}
.btn--primary:hover {
    transform: scale(1.04);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.24);
}
.btn--primary:focus-visible {
    outline: 3px solid var(--accent-grad);
    outline-offset: 2px;
}

.btn--outline {
    background: transparent;
    color: var(--color-text);
    border: 1.5px solid var(--color-border);
}
.btn--outline:hover {
    border-color: var(--color-text);
    background: var(--color-surface);
}
.btn--outline:focus-visible {
    outline: 3px solid #f5c842;
    outline-offset: 2px;
}

/* ================================================
   SERVICES
   ================================================ */
.services-section {
    padding: 4rem 1.5rem;
}

.services-header {
    margin-bottom: 2rem;
}

.services-title {
    font-family: var(--font-stack);
    font-size: 1.875rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text);
    margin: 0;
}

.services-sub {
    color: var(--color-sub);
    margin: 0.25rem 0 0;
    font-size: 0.95rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.service-card {
    position: relative;
    height: 20rem;
    border-radius: var(--radius-card);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    overflow: hidden;
    text-decoration: none;
    transition: box-shadow var(--transition), transform var(--transition), background var(--transition);
}
.service-card:hover {
    background: #fff;
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-4px);
}

.service-card__content {
    position: relative;
    z-index: 1;
    padding: 2.5rem;
}

.service-card__title {
    font-family: var(--font-stack);
    font-size: 1.75rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    color: var(--color-text);
    margin: 0;
    transition: color var(--transition);
}
.service-card:hover .service-card__title {
    color: #ebbd25;
}

.service-card__link {
    color: var(--color-sub);
    font-size: 0.9rem;
    font-weight: 500;
    margin: 0.5rem 0 0;
}

.service-card__bg-circle {
    position: absolute;
    bottom: -2.5rem;
    right: -2.5rem;
    width: 10rem;
    height: 10rem;
    border-radius: 50%;
    background: var(--color-border);
    transition: transform 0.6s var(--transition);
}
.service-card:hover .service-card__bg-circle {
    transform: scale(1.5);
}

/* ================================================
   BLOG CARDS
   ================================================ */
.home-blog-section {
    padding: 4rem 1.5rem;
}

.home-blog {
    max-width: var(--max-width);
    margin: 0 auto;
}

.home-blog__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 2rem;
}

.home-blog__title {
    font-family: var(--font-stack);
    font-size: 1.875rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text);
    margin: 0;
}

.home-blog__see-all {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-sub);
    text-decoration: none;
    transition: color var(--transition);
}
.home-blog__see-all:hover { color: var(--color-text); }

.home-blog__grid,
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.blog-card {
    background: #fff;
    border-radius: var(--radius-card);
    border: 1px solid var(--color-border);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: box-shadow var(--transition), transform var(--transition);
    display: flex;
    flex-direction: column;
}
.blog-card:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-3px);
}

.blog-card__img-wrap {
    overflow: hidden;
    aspect-ratio: 5 / 3;
}

.blog-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}
.blog-card:hover .blog-card__img {
    transform: scale(1.04);
}

.blog-card__body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.blog-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.75rem;
}

.blog-card__tag {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #9a7b00;
    background: rgba(245, 200, 66, 0.15);
    padding: 0.25rem 0.6rem;
    border-radius: 1rem;
}

.blog-card__title {
    font-family: var(--font-stack);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 0.5rem;
    line-height: 1.35;
}
.blog-card__title a {
    text-decoration: none;
    color: inherit;
}
.blog-card__title a:hover { color: #ebbd25; }

.blog-card__excerpt {
    font-size: 0.88rem;
    color: var(--color-sub);
    line-height: 1.55;
    margin: 0 0 1rem;
    flex: 1;
}

.blog-card__meta {
    display: flex;
    gap: 1rem;
    font-size: 0.78rem;
    color: #9ca3af;
    font-weight: 500;
}

/* ================================================
   BLOG LIST PAGE
   ================================================ */
.blog-container {
    padding: 4rem 1.5rem;
}

.blog-header {
    text-align: center;
    margin-bottom: 3rem;
}

.blog-title {
    font-family: var(--font-stack);
    font-size: 2.5rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    color: var(--color-text);
    margin: 0;
}

.blog-subtitle {
    color: var(--color-sub);
    margin: 0.5rem 0 0;
}

.blog-empty {
    text-align: center;
    color: var(--color-sub);
    padding: 3rem 0;
    grid-column: 1 / -1;
}

.blog-pagination {
    text-align: center;
    margin-top: 2.5rem;
}

.blog-pagination__spinner {
    display: block;
    margin-top: 0.75rem;
    font-size: 0.85rem;
    color: var(--color-sub);
}

/* ================================================
   BLOG DETAIL
   ================================================ */
.blog-detail {
    max-width: 760px;
    margin: 0 auto;
    padding: 4rem 1.5rem;
}

.blog-detail__hero {
    border-radius: var(--radius-card);
    overflow: hidden;
    margin-bottom: 2rem;
}

.blog-detail__hero-img {
    width: 100%;
    height: auto;
    display: block;
}

.blog-detail__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.blog-detail__tag {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #9a7b00;
    background: rgba(245, 200, 66, 0.15);
    padding: 0.25rem 0.6rem;
    border-radius: 1rem;
}

.blog-detail__title {
    font-family: var(--font-stack);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    color: var(--color-text);
    line-height: 1.15;
    margin: 0 0 1rem;
}

.blog-detail__lead {
    font-size: 1.1rem;
    color: var(--color-sub);
    line-height: 1.7;
    margin: 0 0 1rem;
    font-weight: 500;
}

.blog-detail__info {
    display: flex;
    gap: 1.25rem;
    font-size: 0.8rem;
    color: #9ca3af;
    font-weight: 500;
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-border);
}

/* body prose styles */
.blog-detail__body {
    font-family: var(--font-stack);
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--color-text);
}
.blog-detail__body h2 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}
.blog-detail__body h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 0.5rem;
}
.blog-detail__body p {
    margin: 0 0 1.2rem;
}
.blog-detail__body img {
    max-width: 100%;
    border-radius: 1rem;
    margin: 1.5rem 0;
}
.blog-detail__body a {
    color: #ebbd25;
    text-decoration: underline;
    text-decoration-color: rgba(37, 99, 235, 0.4);
    transition: text-decoration-color var(--transition);
}
.blog-detail__body a:hover {
    text-decoration-color: #ebbd25;
}
.blog-detail__body ul, .blog-detail__body ol {
    padding-left: 1.5rem;
    margin: 0 0 1.2rem;
}
.blog-detail__body li { margin-bottom: 0.4rem; }
.blog-detail__body blockquote {
    border-left: 3px solid #f5c842;
    padding: 0.6rem 1.2rem;
    margin: 1.5rem 0;
    background: rgba(245, 200, 66, 0.07);
    border-radius: 0 1rem 1rem 0;
    font-style: italic;
    color: var(--color-sub);
}
.blog-detail__body code {
    background: var(--color-surface);
    padding: 0.15rem 0.45rem;
    border-radius: 0.35rem;
    font-size: 0.88em;
}
.blog-detail__body pre {
    background: #1e1e2e;
    color: #cdd6f4;
    padding: 1.2rem;
    border-radius: 1rem;
    overflow-x: auto;
    margin: 1.5rem 0;
}
.blog-detail__body pre code {
    background: none;
    padding: 0;
    color: inherit;
}

/* prev / next nav */
.blog-detail__nav {
    display: flex;
    justify-content: space-between;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
    gap: 1rem;
}

.blog-detail__nav-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
    max-width: 45%;
    transition: color var(--transition);
}
.blog-detail__nav-link:hover { color: #ebbd25; }
.blog-detail__nav-link--next { text-align: right; margin-left: auto; }

/* ================================================
   FOOTER
   ================================================ */
.site-footer {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    margin-top: 4rem;
}

.site-footer__inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 3.5rem 1.5rem 2rem;
}

.site-footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 2fr;
    gap: 2.5rem;
}

.site-footer__logo {
    height: 2.5rem;
    width: auto;
    display: block;
    margin-bottom: 0.75rem;
}

.site-footer__desc {
    font-size: 0.85rem;
    color: var(--color-sub);
    line-height: 1.55;
    max-width: 280px;
    margin: 0;
}

.site-footer__heading {
    font-family: var(--font-stack);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text);
    margin: 0 0 1rem;
}

.site-footer__links {
    list-style: none;
    padding: 0;
    margin: 0;
}
.site-footer__links li { margin-bottom: 0.5rem; }

.site-footer__link {
    font-size: 0.85rem;
    color: var(--color-sub);
    text-decoration: none;
    transition: color var(--transition);
}
.site-footer__link:hover { color: var(--color-text); }

.site-footer__newsletter-desc {
    font-size: 0.82rem;
    color: var(--color-sub);
    margin: 0 0 1rem;
    line-height: 1.5;
}

.site-footer__form {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.site-footer__input {
    flex: 1 1 180px;
    padding: 0.65rem 1rem;
    border: 1.5px solid var(--color-border);
    border-radius: 1.5rem;
    font-family: var(--font-stack);
    font-size: 0.85rem;
    background: #fff;
    color: var(--color-text);
    outline: none;
    transition: border-color var(--transition);
}
.site-footer__input:focus {
    border-color: #f5c842;
}
.site-footer__input::placeholder {
    color: #9ca3af;
}

.site-footer__btn {
    padding: 0.6rem 1.4rem;
    font-size: 0.82rem;
}

.site-footer__bottom {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.site-footer__copy {
    font-size: 0.78rem;
    color: #9ca3af;
    margin: 0;
}

/* ================================================
   RESPONSIVE
   ================================================ */
@media (max-width: 768px) {
    .hero-inner {
        flex-direction: column;
        gap: 2rem;
    }
    .hero-visual {
        max-width: 100%;
        order: -1;
    }
    .site-footer__grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .blog-detail {
        padding: 2rem 1rem;
    }
}

@media (max-width: 480px) {
    .home-blog__grid,
    .blog-grid {
        grid-template-columns: 1fr;
    }
}