/*
Theme Name: DNS Changer Showcase
Theme URI: https://dnschangerapp.blog/
Author: OpenAI for SSM-APP
Description: Professional DNS Changer app showcase WordPress theme with homepage, blog feed, support pages, and policy pages.
Version: 3.1.0
Requires at least: 6.0
Tested up to: 6.8
Requires PHP: 8.0
Text Domain: dnschanger-showcase
*/

:root {
    --dcs-bg: #f3f6fb;
    --dcs-surface: #ffffff;
    --dcs-surface-soft: #f7f9fc;
    --dcs-surface-alt: #eef3f9;
    --dcs-text: #12233b;
    --dcs-muted: #5f7188;
    --dcs-line: #d7e0eb;
    --dcs-line-strong: #c5d1df;
    --dcs-primary: #2f67e8;
    --dcs-primary-dark: #1f53cb;
    --dcs-primary-soft: #ebf2ff;
    --dcs-accent: #15b2d5;
    --dcs-shadow: 0 20px 60px rgba(15, 23, 42, 0.08);
    --dcs-shadow-soft: 0 10px 28px rgba(15, 23, 42, 0.06);
    --dcs-radius-lg: 32px;
    --dcs-radius: 24px;
    --dcs-radius-sm: 18px;
    --dcs-max: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: linear-gradient(180deg, #f7f9fc 0%, #f3f6fb 100%);
    color: var(--dcs-text);
    line-height: 1.7;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--dcs-primary); text-decoration: none; }
a:hover { color: var(--dcs-primary-dark); }
button, input, textarea { font: inherit; }

.site-main,
.site-header__inner,
.site-footer__inner,
.page-shell,
.archive-grid,
.hero,
.section,
.footer-brandbar {
    width: min(calc(100% - 32px), var(--dcs-max));
    margin-inline: auto;
}

.site-main { padding-top: 112px; }
.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 50;
    background: rgba(247, 249, 252, 0.76);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(215, 224, 235, 0.65);
    transition: box-shadow 0.2s ease, background-color 0.2s ease;
}
.site-header.is-scrolled { box-shadow: 0 8px 28px rgba(15, 23, 42, 0.06); background: rgba(247, 249, 252, 0.9); }
.site-header__inner {
    min-height: 84px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.brand-link { display: inline-flex; align-items: center; gap: 14px; color: var(--dcs-text); min-width: 0; }
.brand-mark {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: var(--dcs-shadow-soft);
    flex: 0 0 auto;
}
.branding { display: flex; flex-direction: column; min-width: 0; }
.site-title { font-size: 1rem; font-weight: 800; line-height: 1.2; }
.site-description { color: var(--dcs-muted); font-size: 0.84rem; }

.primary-nav ul,
.footer-nav ul,
.menu {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    gap: 8px;
    align-items: center;
}
.primary-nav a,
.footer-nav a,
.menu a {
    display: inline-flex;
    align-items: center;
    min-height: 42px;
    padding: 0 14px;
    border-radius: 12px;
    color: var(--dcs-text);
    font-weight: 600;
}
.primary-nav a:hover,
.footer-nav a:hover,
.menu a:hover,
.current-menu-item > a { background: rgba(47, 103, 232, 0.08); color: var(--dcs-primary); }

.menu-toggle {
    display: none;
    align-items: center;
    gap: 12px;
    min-height: 46px;
    padding: 0 16px;
    border: 1px solid var(--dcs-line);
    background: rgba(255,255,255,0.8);
    border-radius: 14px;
    color: var(--dcs-text);
    box-shadow: var(--dcs-shadow-soft);
}
.menu-toggle__bars { display: inline-flex; flex-direction: column; gap: 4px; }
.menu-toggle__bars span { width: 18px; height: 2px; background: var(--dcs-text); border-radius: 999px; }
.mobile-nav-extras { display: none; }

.hero-wrap--v3 { padding-top: 10px; }
.hero--v3 {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: 24px;
    align-items: stretch;
}
.hero__content,
.hero__visual,
.summary-card,
.feature-card,
.post-card,
.review-card,
.contact-form-card,
.page-card,
.sidebar-card,
.single-card,
.widget,
.contact-panel,
.showcase-card,
.footer-brandbar,
.archive-card {
    background: var(--dcs-surface);
    border: 1px solid rgba(215, 224, 235, 0.85);
    border-radius: var(--dcs-radius-lg);
    box-shadow: var(--dcs-shadow-soft);
}
.hero__content--v3 { padding: 42px; }
.eyebrow {
    display: inline-flex;
    align-items: center;
    min-height: 36px;
    padding: 0 14px;
    border-radius: 999px;
    background: var(--dcs-primary-soft);
    color: var(--dcs-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 800;
    font-size: 0.78rem;
}
.hero h1,
.section-title,
.entry-title,
.single-card h1 { line-height: 1.08; letter-spacing: -0.03em; }
.hero h1 { margin: 18px 0 16px; font-size: clamp(2.7rem, 5vw, 5rem); max-width: 10ch; }
.hero-lead,
.section-copy,
.footer-copy,
.entry-content,
.single-excerpt,
.post-card p,
.review-author,
.contact-panel p,
.summary-card p,
.feature-card p { color: var(--dcs-muted); }
.hero__actions,
.cta-row,
.contact-panel__links { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.button,
.wp-block-button__link,
button,
input[type="submit"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    padding: 0 22px;
    border-radius: 14px;
    border: 1px solid transparent;
    cursor: pointer;
    font-weight: 700;
    transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, color 0.2s ease;
}
.button:hover,
button:hover,
input[type="submit"]:hover { transform: translateY(-1px); }
.button--primary,
.wp-block-button__link,
input[type="submit"] { background: var(--dcs-primary); color: #fff; }
.button--primary:hover,
.wp-block-button__link:hover,
input[type="submit"]:hover { background: var(--dcs-primary-dark); color: #fff; }
.button--secondary,
.button--ghost,
button { background: #fff; color: var(--dcs-text); border-color: var(--dcs-line); }
.button--secondary:hover,
.button--ghost:hover,
button:hover { border-color: var(--dcs-line-strong); background: #f9fbff; color: var(--dcs-text); }
.trust-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    list-style: none;
    padding: 0;
    margin: 28px 0 0;
}
.trust-row li,
.meta-chip,
.app-chip,
.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 38px;
    padding: 0 14px;
    border-radius: 999px;
    background: #f3f7fd;
    color: #415870;
    font-size: 0.88rem;
    font-weight: 700;
}
.hero-metrics {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 24px;
}
.metric-card {
    padding: 18px;
    border-radius: 20px;
    background: var(--dcs-surface-soft);
    border: 1px solid var(--dcs-line);
}
.metric-card__label,
.summary-kicker {
    display: block;
    margin-bottom: 8px;
    color: var(--dcs-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.75rem;
    font-weight: 800;
}
.metric-card strong { display: block; line-height: 1.35; }

.hero__visual--v3 {
    padding: 28px;
    min-height: 720px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #f7fafd 0%, #eff5fb 100%);
}
.hero__visual--v3::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(47, 103, 232, 0.12), transparent 30%), radial-gradient(circle at bottom left, rgba(21, 178, 213, 0.12), transparent 32%);
    pointer-events: none;
}
.hero-showcase-shell { position: relative; z-index: 1; height: 100%; display: grid; grid-template-rows: auto 1fr auto; gap: 20px; }
.showcase-intro-card,
.showcase-mini-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px;
    border-radius: 22px;
    background: rgba(255,255,255,0.88);
    border: 1px solid rgba(215, 224, 235, 0.9);
}
.showcase-intro-card__logo { width: 62px; height: 62px; border-radius: 18px; box-shadow: var(--dcs-shadow-soft); }
.showcase-intro-card h2,
.summary-card h2,
.summary-card h3,
.showcase-mini-card h3 { margin: 0; line-height: 1.3; }
.phone-stage {
    display: grid;
    place-items: center;
    gap: 18px;
    align-content: center;
}
.phone-frame {
    position: relative;
    width: min(100%, 320px);
    aspect-ratio: 9 / 18.5;
    background: linear-gradient(180deg, #152236, #0e1724);
    border-radius: 38px;
    padding: 14px;
    box-shadow: 0 24px 50px rgba(15, 23, 42, 0.24);
}
.phone-speaker {
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 90px;
    height: 8px;
    background: rgba(255,255,255,0.1);
    border-radius: 999px;
    z-index: 2;
}
.phone-screen {
    position: relative;
    height: 100%;
    border-radius: 28px;
    overflow: hidden;
    background: #d9e4f5;
}
.phone-screen__slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease;
}
.phone-screen__slide.is-active { opacity: 1; visibility: visible; }
.phone-screen__slide img { width: 100%; height: 100%; object-fit: cover; }
.slider-controls { display: flex; align-items: center; justify-content: center; gap: 12px; }
.slider-control {
    width: 42px;
    min-height: 42px;
    padding: 0;
    border-radius: 999px;
    font-size: 1.6rem;
    line-height: 1;
}
.slider-dots { display: flex; gap: 8px; }
.slider-dot {
    width: 10px;
    min-height: 10px;
    padding: 0;
    border-radius: 999px;
    border: none;
    background: #bfd0e7;
    box-shadow: none;
}
.slider-dot.is-active { background: var(--dcs-primary); width: 26px; }
.showcase-mini-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }

.section { padding: 36px 0; }
.section--compact { padding-top: 12px; }
.section--soft { padding-top: 28px; padding-bottom: 28px; }
.section--cta { padding-bottom: 52px; }
.section--brandbar { padding-top: 0; padding-bottom: 46px; }
.section-header {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px 28px;
    margin-bottom: 24px;
}
.section-title { margin: 12px 0 0; font-size: clamp(1.9rem, 3vw, 3rem); }
.section-copy { max-width: 580px; }

.summary-grid,
.features-grid,
.posts-grid,
.reviews-grid { display: grid; gap: 20px; }
.summary-grid--v3 { grid-template-columns: 1.2fr 1fr 1fr; }
.summary-grid--v4 { grid-template-columns: 1.2fr 1fr 1fr; }
.summary-card,
.feature-card,
.post-card,
.review-card,
.contact-panel,
.page-card,
.sidebar-card,
.single-card,
.widget { padding: 28px; }
.summary-card__head { display: flex; align-items: center; gap: 16px; margin-bottom: 14px; }
.summary-logo, .footer-logo { width: 72px; height: 72px; border-radius: 20px; box-shadow: var(--dcs-shadow-soft); }
.summary-card--feature {
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}
.feature-list {
    list-style: none;
    margin: 18px 0 0;
    padding: 0;
    display: grid;
    gap: 10px;
}
.feature-list li {
    position: relative;
    padding-left: 18px;
    color: var(--dcs-muted);
    font-weight: 600;
}
.feature-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.72em;
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: var(--dcs-primary);
    transform: translateY(-50%);
}

.showcase-grid--v3 {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}
.showcase-card { overflow: hidden; }
.showcase-card--banner { grid-column: span 4; }
.showcase-card--phone img { width: 100%; aspect-ratio: 9 / 16; object-fit: cover; background: #dbe7f6; }
.showcase-card--banner img { width: 100%; aspect-ratio: 1024 / 500; object-fit: cover; }
.reviews-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.review-card blockquote { margin: 12px 0 18px; font-size: 1.02rem; line-height: 1.75; color: var(--dcs-text); }
.review-stars { color: #f3b531; letter-spacing: 0.15em; font-size: 1rem; }
.review-author { margin: 0; font-weight: 700; color: #60748b; font-size: 0.95rem; }
.posts-grid--v3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.post-card h3 { margin: 14px 0 10px; font-size: 1.28rem; line-height: 1.3; }
.text-link { display: inline-flex; margin-top: 16px; font-weight: 700; }

.contact-panel--v3 {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: 24px;
    padding: 34px;
    background: linear-gradient(135deg, #ffffff, #f4f8fd);
}
.contact-form-card { padding: 26px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.contact-form p { margin: 0 0 16px; }
.contact-form label { display: block; margin-bottom: 8px; font-weight: 700; }
.contact-form input,
.contact-form textarea {
    width: 100%;
    border: 1px solid var(--dcs-line);
    background: #fff;
    border-radius: 14px;
    padding: 14px 16px;
    color: var(--dcs-text);
}
.contact-form input:focus,
.contact-form textarea:focus {
    outline: 2px solid rgba(47, 103, 232, 0.14);
    border-color: #9db7e8;
}
.form-notice {
    margin-bottom: 18px;
    padding: 14px 16px;
    border-radius: 14px;
    font-weight: 700;
}
.form-notice--success { background: #ecfbf4; color: #18794e; border: 1px solid #bfe7d1; }
.form-notice--error { background: #fff0f0; color: #ad2831; border: 1px solid #f0c2c5; }

.footer-brandbar {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 24px;
    padding: 24px 28px;
}
.footer-brandbar__identity { display: flex; align-items: center; gap: 16px; }
.footer-brandbar__identity img { width: 82px; height: 82px; border-radius: 22px; box-shadow: var(--dcs-shadow-soft); }
.footer-brandbar__identity h2 { margin: 0; }
.brandbar-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    list-style: none;
    margin: 16px 0 0;
    padding: 0;
}
.brandbar-links a {
    display: inline-flex;
    min-height: 40px;
    align-items: center;
    padding: 0 14px;
    border-radius: 999px;
    background: var(--dcs-primary-soft);
    color: var(--dcs-primary);
    font-weight: 700;
}

.page-shell,
.single-shell,
.archive-grid { padding: 18px 0 52px; }
.page-grid,
.archive-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 24px; }
.entry-title { margin: 0 0 18px; font-size: clamp(2rem, 4vw, 3.2rem); }
.entry-meta { color: var(--dcs-muted); font-size: 0.95rem; }
.entry-content h2,
.entry-content h3,
.single-card h2,
.single-card h3 { margin-top: 28px; line-height: 1.25; }
.entry-content ul,
.clean-list { padding-left: 20px; }
.clean-list li { margin-bottom: 8px; }
.widget { margin-bottom: 20px; }
.widget:last-child { margin-bottom: 0; }

.site-footer { padding: 0 0 42px; }
.site-footer__inner {
    background: #fff;
    border: 1px solid rgba(215, 224, 235, 0.85);
    border-radius: var(--dcs-radius-lg);
    box-shadow: var(--dcs-shadow-soft);
    padding: 30px;
}
.footer-columns {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr 0.8fr;
    gap: 24px;
}
.footer-brand__row { display: flex; align-items: center; gap: 16px; margin-bottom: 16px; }
.footer-copy { margin: 0; }
.footer-nav ul { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; }
.footer-bottom {
    margin-top: 22px;
    padding-top: 18px;
    border-top: 1px solid var(--dcs-line);
    display: flex;
    justify-content: space-between;
    gap: 16px;
    color: var(--dcs-muted);
    font-size: 0.92rem;
}

.posts-navigation,
.pagination,
.nav-links { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 10px; }
.screen-reader-text { clip: rect(1px, 1px, 1px, 1px); position: absolute !important; height: 1px; width: 1px; overflow: hidden; }

@media (max-width: 1100px) {
    .hero--v3,
    .contact-panel--v3,
    .footer-brandbar,
    .page-grid,
    .archive-grid,
    .footer-columns { grid-template-columns: 1fr; }
    .hero__visual--v3 { min-height: auto; }
    .summary-grid--v3,
    .summary-grid--v4,
    .posts-grid--v3,
    .reviews-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .showcase-grid--v3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .showcase-card--banner { grid-column: span 3; }
}

@media (max-width: 991px) {
    .site-main { padding-top: 96px; }
    .menu-toggle { display: inline-flex; }
    .primary-nav {
        position: fixed;
        top: 82px;
        right: 16px;
        left: 16px;
        background: rgba(255,255,255,0.98);
        border: 1px solid var(--dcs-line);
        border-radius: 24px;
        box-shadow: var(--dcs-shadow);
        padding: 18px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all 0.2s ease;
    }
    .primary-nav.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
    .primary-nav ul,
    .menu { flex-direction: column; align-items: stretch; }
    .primary-nav a,
    .menu a { width: 100%; justify-content: space-between; }
    .mobile-nav-extras { display: block; margin-top: 12px; }
    body.menu-open { overflow: hidden; }
}

@media (max-width: 767px) {
    .site-main,
    .site-header__inner,
    .site-footer__inner,
    .page-shell,
    .archive-grid,
    .hero,
    .section,
    .footer-brandbar { width: min(calc(100% - 20px), var(--dcs-max)); }
    .site-header__inner { min-height: 76px; }
    .branding .site-description { display: none; }
    .hero__content--v3,
    .hero__visual--v3,
    .summary-card,
    .review-card,
    .post-card,
    .contact-panel,
    .contact-form-card,
    .page-card,
    .sidebar-card,
    .single-card,
    .widget,
    .site-footer__inner { padding: 22px; }
    .hero h1 { font-size: clamp(2.15rem, 10vw, 3rem); max-width: none; }
    .hero-metrics,
    .summary-grid--v3,
    .posts-grid--v3,
    .reviews-grid,
    .form-grid,
    .showcase-mini-grid { grid-template-columns: 1fr; }
    .showcase-grid--v3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .showcase-card--banner { grid-column: span 2; }
    .section-header { flex-direction: column; align-items: flex-start; }
    .phone-frame { width: min(100%, 286px); }
    .footer-bottom { flex-direction: column; }
}

@media (max-width: 520px) {
    .site-title { font-size: 0.95rem; }
    .brand-mark { width: 40px; height: 40px; }
    .hero__actions,
    .contact-panel__links,
    .cta-row { flex-direction: column; }
    .button,
    .wp-block-button__link,
    button,
    input[type="submit"] { width: 100%; }
    .showcase-grid--v3 { grid-template-columns: 1fr; }
    .showcase-card--banner { grid-column: span 1; }
    .trust-row li,
    .meta-chip,
    .brandbar-links a { width: 100%; justify-content: center; }
}