/*
Theme Name: Rybalkin IT
Theme URI: https://rybalkin-it.ru/
Author: Mikhail Rybalkin
Author URI: https://rybalkin-it.ru/
Description: Personal portfolio theme for Mikhail Rybalkin, IT specialist and system administrator from Belokurikha.
Version: 1.2.4
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 7.4
Text Domain: rybalkin-it
*/

:root {
    --bg: #f6f7f4;
    --surface: #ffffff;
    --ink: #171a1f;
    --muted: #626b73;
    --line: #d9ded9;
    --steel: #29323a;
    --teal: #0f766e;
    --teal-dark: #0b4f4a;
    --amber: #c47a2c;
    --red: #9d3b3b;
    --shadow: 0 22px 60px rgba(24, 30, 36, .12);
    --radius: 8px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    line-height: 1.55;
    text-rendering: optimizeLegibility;
}

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

a {
    color: inherit;
    text-decoration: none;
}

p {
    margin: 0;
}

.container {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
}

.narrow {
    width: min(820px, calc(100% - 40px));
}

.skip-link {
    position: absolute;
    left: 16px;
    top: -60px;
    z-index: 100;
    background: var(--ink);
    color: #fff;
    padding: 10px 14px;
    border-radius: var(--radius);
}

.skip-link:focus {
    top: 16px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(246, 247, 244, .9);
    border-bottom: 1px solid rgba(217, 222, 217, .75);
    backdrop-filter: blur(18px);
}

.header-inner {
    min-height: 74px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.brand-logo {
    position: relative;
    flex: 0 0 120px;
    width: 120px;
    height: 62px;
    overflow: hidden;
    mix-blend-mode: multiply;
}

.brand-logo img {
    position: absolute;
    width: 260px;
    max-width: none;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.brand > .custom-logo {
    width: auto;
    max-width: 240px;
    max-height: 62px;
    object-fit: contain;
}

@media (max-width: 480px) {
    .header-inner { gap: 12px; }
    .brand { gap: 8px; }
    .brand-logo {
        flex-basis: 64px;
        width: 64px;
        height: 40px;
    }
    .brand-logo img { width: 140px; }
    .site-header .brand-text strong { font-size: 14px; }
    .brand > .custom-logo { max-width: 200px; max-height: 48px; }
}

.brand-text {
    display: grid;
    line-height: 1.15;
}

.brand-text strong {
    font-size: 16px;
}

.brand-text small {
    color: var(--muted);
    font-size: 12px;
}

.primary-nav .menu {
    display: flex;
    align-items: center;
    gap: 6px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.primary-nav a {
    display: inline-flex;
    padding: 10px 12px;
    border-radius: var(--radius);
    color: var(--steel);
    font-weight: 650;
    font-size: 14px;
}

.primary-nav a:hover,
.primary-nav a:focus {
    background: #e8ece8;
}

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 10px;
}

.menu-toggle span {
    display: block;
    height: 2px;
    width: 100%;
    margin: 5px 0;
    background: var(--ink);
}

.hero {
    min-height: min(780px, calc(100vh - 74px));
    display: grid;
    align-items: center;
    position: relative;
    overflow: hidden;
    background-image: linear-gradient(90deg, rgba(10, 13, 15, .86) 0%, rgba(10, 13, 15, .68) 43%, rgba(10, 13, 15, .1) 72%), var(--hero-image);
    background-position: center;
    background-size: cover;
    color: #fff;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    background:
        radial-gradient(circle at 72% 25%, rgba(255, 255, 255, .36) 0 2px, transparent 3px),
        radial-gradient(circle at 83% 45%, rgba(240, 180, 111, .5) 0 2px, transparent 3px),
        radial-gradient(circle at 67% 66%, rgba(15, 118, 110, .55) 0 2px, transparent 3px),
        linear-gradient(90deg, transparent 0 64%, rgba(255, 255, 255, .22) 64% calc(64% + 1px), transparent calc(64% + 1px)),
        linear-gradient(90deg, transparent 0 76%, rgba(255, 255, 255, .16) 76% calc(76% + 1px), transparent calc(76% + 1px)),
        linear-gradient(0deg, transparent 0 35%, rgba(255, 255, 255, .18) 35% calc(35% + 1px), transparent calc(35% + 1px)),
        linear-gradient(0deg, transparent 0 58%, rgba(15, 118, 110, .3) 58% calc(58% + 1px), transparent calc(58% + 1px));
    opacity: .55;
    transform: translate3d(0, 0, 0);
    animation: tech-drift 12s ease-in-out infinite alternate;
    pointer-events: none;
}

.hero::after {
    content: "";
    position: absolute;
    inset: auto 0 0;
    height: 90px;
    background: linear-gradient(180deg, rgba(246, 247, 244, 0), var(--bg));
}

.hero-grid {
    position: relative;
    z-index: 1;
    padding: 72px 0 118px;
}

.hero-copy {
    max-width: 740px;
}

.eyebrow,
.section-kicker {
    margin-bottom: 12px;
    color: var(--amber);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
}

.hero h1 {
    margin: 0 0 18px;
    max-width: 780px;
    font-size: clamp(46px, 8vw, 104px);
    line-height: .92;
    letter-spacing: 0;
}

.lead {
    max-width: 680px;
    color: rgba(255, 255, 255, .86);
    font-size: clamp(18px, 2vw, 24px);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 32px;
}

.button {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    padding: 13px 18px;
    font-weight: 800;
    border: 1px solid transparent;
}

.button.primary {
    background: var(--teal);
    color: #fff;
}

.button.primary:hover {
    background: var(--teal-dark);
}

.button.secondary {
    border-color: rgba(255, 255, 255, .45);
    color: #fff;
    background: rgba(255, 255, 255, .08);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    max-width: 780px;
    margin-top: 46px;
}

.hero-stats span {
    min-height: 88px;
    padding: 14px;
    border: 1px solid rgba(255, 255, 255, .22);
    border-radius: var(--radius);
    background: rgba(10, 13, 15, .34);
    color: rgba(255, 255, 255, .76);
}

.hero-stats strong {
    display: block;
    color: #fff;
    font-size: 16px;
}

.section {
    padding: 88px 0;
}

.intro-band,
.certificates-band {
    background: #e8ece8;
}

.fit-section {
    background: #f9faf7;
}

.system-map-section {
    background: #111519;
    color: #fff;
    overflow: hidden;
}

.workflow-section {
    background: #ffffff;
}

.trust-section {
    background: #ffffff;
}

.formats-section {
    background: #eef3f1;
}

.packages-section {
    background: #f9faf7;
}

.intro-grid,
.certificate-grid,
.contact-grid,
.experience-grid,
.reputation-grid,
.split-list-grid {
    display: grid;
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: 54px;
    align-items: start;
}

h2 {
    margin: 0;
    font-size: clamp(32px, 5vw, 58px);
    line-height: 1;
    letter-spacing: 0;
}

.intro-grid p:last-child,
.certificate-grid p,
.reputation-grid p,
.split-list-grid p,
.contact-grid p,
.experience-grid p,
.section-heading p {
    color: var(--muted);
    font-size: 18px;
}

.section-heading {
    max-width: 740px;
    margin-bottom: 34px;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.trust-grid,
.package-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.service-card,
.trust-card,
.package-card {
    min-height: 232px;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: 0 1px 0 rgba(255, 255, 255, .7) inset;
}

.service-card {
    position: relative;
    padding-top: 22px;
}

.service-card::before {
    content: none;
    position: absolute;
    left: 22px;
    top: 22px;
    width: 38px;
    height: 38px;
    border: 1px solid #c8d7d2;
    border-radius: var(--radius);
    background-color: #eef3f1;
    background-position: center;
    background-repeat: no-repeat;
    background-size: 24px 24px;
}

.service-card:nth-child(1)::before {
    background-image: linear-gradient(var(--teal), var(--teal)), linear-gradient(var(--teal), var(--teal)), linear-gradient(var(--teal), var(--teal));
    background-size: 20px 3px, 20px 3px, 20px 3px;
    background-position: center 11px, center 18px, center 25px;
}

.service-card:nth-child(2)::before {
    background-image: radial-gradient(circle, var(--teal) 0 3px, transparent 4px), linear-gradient(var(--teal), var(--teal)), linear-gradient(90deg, var(--teal), var(--teal));
    background-size: 22px 22px, 3px 22px, 22px 3px;
}

.service-card:nth-child(3)::before {
    background-image: linear-gradient(135deg, transparent 0 40%, var(--amber) 40% 52%, transparent 52%), linear-gradient(45deg, transparent 0 40%, var(--teal) 40% 52%, transparent 52%);
}

.service-card:nth-child(4)::before {
    background-image: radial-gradient(circle at 50% 50%, var(--teal) 0 4px, transparent 5px), radial-gradient(circle at 18% 20%, var(--amber) 0 3px, transparent 4px), radial-gradient(circle at 82% 20%, var(--amber) 0 3px, transparent 4px), radial-gradient(circle at 18% 82%, var(--amber) 0 3px, transparent 4px), radial-gradient(circle at 82% 82%, var(--amber) 0 3px, transparent 4px);
}

.service-card:nth-child(5)::before {
    background-image: linear-gradient(var(--teal), var(--teal)), linear-gradient(90deg, var(--teal), var(--teal)), radial-gradient(circle, var(--amber) 0 4px, transparent 5px);
    background-size: 20px 3px, 3px 20px, 18px 18px;
}

.service-card:nth-child(6)::before {
    background-image: linear-gradient(90deg, var(--teal), var(--teal)), linear-gradient(var(--teal), var(--teal)), linear-gradient(135deg, transparent 0 45%, var(--amber) 45% 55%, transparent 55%);
    background-size: 22px 3px, 3px 22px, 22px 22px;
}

.service-card:nth-child(7)::before {
    background-image: linear-gradient(var(--teal), var(--teal)), radial-gradient(circle, var(--amber) 0 3px, transparent 4px), radial-gradient(circle, var(--teal) 0 3px, transparent 4px);
    background-size: 22px 3px, 16px 16px, 16px 16px;
    background-position: center, 8px 8px, 22px 22px;
}

.service-card:nth-child(8)::before {
    background-image: radial-gradient(circle at 50% 50%, transparent 0 6px, var(--teal) 7px 9px, transparent 10px), linear-gradient(90deg, var(--amber), var(--amber)), linear-gradient(var(--amber), var(--amber));
    background-size: 24px 24px, 22px 3px, 3px 22px;
}

.service-card h3,
.trust-card h3,
.package-card h3 {
    margin: 0 0 14px;
    font-size: 20px;
    line-height: 1.15;
}

.service-card p,
.trust-card p,
.package-card p {
    color: var(--muted);
}

.trust-card {
    min-height: 190px;
}

.package-card {
    min-height: 200px;
}

.dark-section {
    background: var(--steel);
    color: #fff;
}

.dark-section .section-kicker {
    color: #f0b46f;
}

.dark-section p {
    color: rgba(255, 255, 255, .72);
}

.system-map-layout {
    display: grid;
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    gap: 54px;
    align-items: center;
}

.system-map-section .section-kicker {
    color: #f0b46f;
}

.system-map-copy p:not(.section-kicker) {
    color: rgba(255, 255, 255, .72);
    font-size: 18px;
}

.system-map-points {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 28px;
}

.system-map-points span {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 7px 10px;
    border: 1px solid rgba(255, 255, 255, .18);
    border-radius: 999px;
    background: rgba(255, 255, 255, .06);
    color: rgba(255, 255, 255, .84);
    font-size: 13px;
    font-weight: 800;
}

.system-map-visual {
    position: relative;
    min-height: 460px;
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: var(--radius);
    background:
        linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px),
        radial-gradient(circle at 68% 22%, rgba(15, 118, 110, .24), transparent 34%),
        radial-gradient(circle at 22% 78%, rgba(196, 122, 44, .18), transparent 30%),
        #151b20;
    background-size: 34px 34px, 34px 34px, auto, auto, auto;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .04), 0 28px 80px rgba(0, 0, 0, .24);
    overflow: hidden;
}

.system-map-visual::before {
    content: "";
    position: absolute;
    inset: 18px;
    border: 1px solid rgba(15, 118, 110, .22);
    border-radius: var(--radius);
    pointer-events: none;
}

.system-map-visual svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.map-line {
    fill: none;
    stroke: url(#mapLine);
    stroke-width: 3;
    stroke-linecap: round;
    stroke-dasharray: 10 16;
    animation: map-flow 8s linear infinite;
}

.line-b {
    animation-duration: 10s;
    animation-direction: reverse;
}

.line-c {
    animation-duration: 7s;
}

.line-d {
    animation-duration: 11s;
}

.map-pulse {
    fill: #f0b46f;
    filter: url(#softGlow);
    opacity: .86;
    animation: node-pulse 2.6s ease-in-out infinite;
}

.pulse-b {
    animation-delay: .6s;
}

.pulse-c {
    animation-delay: 1.2s;
}

.map-node {
    position: absolute;
    min-width: 132px;
    padding: 13px 14px;
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: var(--radius);
    background: rgba(17, 21, 25, .82);
    box-shadow: 0 14px 32px rgba(0, 0, 0, .22);
    backdrop-filter: blur(10px);
}

.map-node::before {
    content: "";
    position: absolute;
    left: 13px;
    top: 13px;
    width: 7px;
    height: 7px;
    border-radius: 999px;
    background: #14b8a6;
    box-shadow: 0 0 18px rgba(20, 184, 166, .8);
}

.map-node strong,
.map-node span {
    display: block;
    padding-left: 18px;
}

.map-node strong {
    color: #fff;
    line-height: 1.1;
}

.map-node span {
    margin-top: 5px;
    color: rgba(255, 255, 255, .62);
    font-size: 12px;
    font-weight: 750;
}

.node-server {
    left: 7%;
    top: 14%;
}

.node-network {
    left: 36%;
    top: 34%;
}

.node-business {
    right: 7%;
    top: 20%;
}

.node-site {
    right: 7%;
    bottom: 25%;
}

.node-device {
    left: 10%;
    bottom: 16%;
}

.map-terminal {
    position: absolute;
    left: 34%;
    bottom: 7%;
    width: min(270px, 40%);
    display: grid;
    gap: 6px;
    padding: 14px;
    border: 1px solid rgba(240, 180, 111, .25);
    border-radius: var(--radius);
    background: rgba(8, 11, 13, .78);
    color: rgba(255, 255, 255, .75);
    font-family: Consolas, "Courier New", monospace;
    font-size: 12px;
}

.map-terminal span::before {
    content: "> ";
    color: #f0b46f;
}

.tech-profile-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.tech-profile-card {
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #f6f7f4;
}

.tech-profile-card h3 {
    margin: 0 0 16px;
    font-size: 20px;
    line-height: 1.15;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-tags span {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 6px 10px;
    border: 1px solid #cad7d3;
    border-radius: 999px;
    background: #fff;
    color: var(--steel);
    font-size: 13px;
    font-weight: 750;
}

.compact-list {
    display: grid;
    gap: 10px;
}

.compact-list div {
    padding: 16px 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--steel);
    font-size: 18px;
    font-weight: 750;
}

.workflow-grid {
    position: relative;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.workflow-grid::before,
.workflow-grid::after {
    content: "";
    position: absolute;
    left: 22px;
    right: 22px;
    top: 41px;
    height: 2px;
    pointer-events: none;
}

.workflow-grid::before {
    background: linear-gradient(90deg, rgba(15, 118, 110, .12), rgba(15, 118, 110, .4), rgba(196, 122, 44, .18));
}

.workflow-grid::after {
    width: 52px;
    right: auto;
    border-radius: 999px;
    background: linear-gradient(90deg, transparent, var(--teal), transparent);
    animation: signal-run 4.8s ease-in-out infinite;
}

.workflow-card {
    position: relative;
    min-height: 220px;
    display: grid;
    align-content: start;
    gap: 14px;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #f6f7f4;
}

.workflow-card span {
    color: var(--red);
    font-weight: 900;
}

.workflow-card h3 {
    margin: 0;
    font-size: 21px;
    line-height: 1.15;
}

.workflow-card p {
    color: var(--muted);
}

.timeline {
    display: grid;
    gap: 10px;
}

.timeline div {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 18px;
    padding: 18px;
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, .06);
}

.timeline strong {
    color: #fff;
}

.timeline span {
    color: rgba(255, 255, 255, .72);
}

.cases-layout {
    display: grid;
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    gap: 54px;
}

.sticky-heading {
    position: sticky;
    top: 110px;
    align-self: start;
}

.case-list {
    border-top: 1px solid var(--line);
}

.case-row {
    display: grid;
    grid-template-columns: 64px 1fr;
    gap: 18px;
    padding: 24px 0;
    border-bottom: 1px solid var(--line);
}

.case-row span {
    color: var(--red);
    font-weight: 900;
}

.case-row p {
    font-size: 22px;
    line-height: 1.28;
}

.reputation-section {
    background: #eef3f1;
}

.reputation-heading {
    max-width: 820px;
}

.reputation-board {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
}
.reputation-column {
    display: grid;
    gap: 16px;
    min-width: 0;
}
.reputation-column--sites { order: -1; }
.reputation-column h3 { margin: 0; font-size: 18px; }
.profile-list { display: grid; gap: 16px; }
.site-project-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.profile-card {
    display: grid;
    gap: 12px;
    padding: 24px;
    border: 1px solid #cfd9d5;
    border-radius: 8px;
    background: var(--surface);
    min-width: 0;
}
.profile-card:hover { border-color: var(--teal); }
.profile-card:focus-visible { outline: 3px solid var(--teal); outline-offset: 4px; }
.profile-card > span { color: var(--teal-dark); font-size: 24px; font-weight: 900; }
.profile-card p { color: var(--muted); margin: 0; }
.site-project-card {
    grid-template-rows: auto auto 1fr auto;
    border-top: 3px solid var(--teal);
}
.site-project-card:nth-child(2) { border-top-color: #385ca0; }
.reputation-column--clients .site-project-card:nth-child(1) { border-top-color: #aa6925; }
.reputation-column--clients .site-project-card:nth-child(2) { border-top-color: #925677; }
.project-kind { font-size: 13px; color: var(--muted); }
.project-domain {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 16px;
    margin-top: 8px;
    border-top: 1px solid #dce4e0;
    color: var(--teal-dark);
    font-size: 14px;
    overflow-wrap: anywhere;
}
.project-domain span { font-size: 22px; }
.profile-list--compact { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.profile-list--compact .profile-card { padding: 16px 0; border: 0; border-top: 1px solid #cfd9d5; border-radius: 0; background: transparent; }
.profile-list--compact .profile-card > span { font-size: 18px; }
.contact-note { padding: 18px 20px; overflow-wrap: anywhere; }
@media (max-width: 600px) {
    .site-project-list, .profile-list--compact { grid-template-columns: minmax(0, 1fr); }
}

.certificate-heading {
    max-width: 860px;
}

.certificate-tracks {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 18px;
}

.certificate-tracks span {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 6px 10px;
    border: 1px solid #cbd7d3;
    border-radius: 999px;
    background: #fff;
    color: var(--steel);
    font-size: 13px;
    font-weight: 800;
}

.certificate-showcase {
    position: relative;
    display: grid;
    grid-template-columns: minmax(280px, 1.15fr) repeat(2, minmax(0, .8fr));
    gap: 14px;
    padding: 18px;
    border: 1px solid #cfd9d5;
    border-radius: var(--radius);
    background:
        linear-gradient(90deg, rgba(15, 118, 110, .07) 1px, transparent 1px),
        linear-gradient(rgba(15, 118, 110, .06) 1px, transparent 1px),
        linear-gradient(135deg, rgba(255, 255, 255, .92), rgba(238, 243, 241, .72));
    background-size: 28px 28px, 28px 28px, auto;
    box-shadow: 0 22px 58px rgba(24, 30, 36, .1);
    overflow: hidden;
}

.certificate-showcase::before {
    content: "";
    position: absolute;
    left: 22px;
    right: 22px;
    top: 22px;
    height: 2px;
    background: linear-gradient(90deg, var(--teal), rgba(15, 118, 110, .12), var(--amber));
    opacity: .65;
}

.certificate-card {
    position: relative;
    display: block;
    width: 100%;
    padding: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    color: inherit;
    cursor: pointer;
    font: inherit;
    text-align: left;
    overflow: hidden;
    box-shadow: 0 1px 0 rgba(255, 255, 255, .7) inset;
    transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.certificate-card:hover {
    border-color: var(--teal);
    transform: translateY(-3px);
    box-shadow: 0 18px 40px rgba(24, 30, 36, .13);
}

.certificate-card:focus-visible {
    outline: 3px solid rgba(15, 118, 110, .35);
    outline-offset: 3px;
}

.certificate-card figure {
    margin: 0;
    display: grid;
    grid-template-rows: 210px auto;
    min-height: 100%;
}

.certificate-card--featured {
    grid-row: span 2;
}

.certificate-card--featured figure {
    grid-template-rows: 470px auto;
}

.certificate-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    background: #fff;
}

.certificate-card figcaption {
    display: grid;
    gap: 7px;
    padding: 16px;
}

.certificate-card strong {
    font-size: 17px;
    line-height: 1.2;
}

.certificate-card--featured figcaption {
    padding: 20px;
}

.certificate-card--featured strong {
    font-size: 23px;
}

.certificate-card span {
    color: var(--muted);
    font-size: 14px;
}

.certificate-lightbox {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: none;
    padding: 24px;
}

.certificate-lightbox.is-open {
    display: grid;
    place-items: center;
}

.certificate-lightbox__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(10, 13, 15, .78);
}

.certificate-lightbox__dialog {
    position: relative;
    width: min(1120px, 100%);
    max-height: calc(100vh - 48px);
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    border-radius: var(--radius);
    background: #101418;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.certificate-lightbox__toolbar {
    min-height: 58px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 14px 12px 18px;
    color: #fff;
    border-bottom: 1px solid rgba(255, 255, 255, .14);
}

.certificate-lightbox__toolbar strong {
    font-size: 16px;
    line-height: 1.2;
}

.certificate-lightbox__close {
    min-height: 40px;
    padding: 9px 12px;
    border: 1px solid rgba(255, 255, 255, .26);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, .08);
    color: #fff;
    cursor: pointer;
    font: inherit;
    font-weight: 800;
}

.certificate-lightbox__close:hover {
    background: rgba(255, 255, 255, .16);
}

.certificate-lightbox img {
    width: 100%;
    height: calc(100vh - 130px);
    object-fit: contain;
    background: #20252b;
}

.certificate-lightbox__nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 64px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, .2);
    border-radius: var(--radius);
    background: rgba(10, 13, 15, .62);
    color: #fff;
    cursor: pointer;
    font: inherit;
    font-size: 44px;
    line-height: 1;
}

.certificate-lightbox__nav:hover {
    background: rgba(15, 118, 110, .9);
}

.certificate-lightbox__nav--prev {
    left: 14px;
}

.certificate-lightbox__nav--next {
    right: 14px;
}

.contact-section {
    background: #f2efe7;
}

.contact-panel {
    display: grid;
    gap: 10px;
}

.contact-panel a {
    display: flex;
    align-items: center;
    min-height: 58px;
    padding: 16px 18px;
    border: 1px solid #d9d2c3;
    border-radius: var(--radius);
    background: #fff;
    color: var(--steel);
    font-weight: 800;
    overflow-wrap: anywhere;
}

.contact-panel a:hover {
    border-color: var(--amber);
}

.contact-panel a.is-primary {
    background: var(--teal);
    color: #fff;
    border-color: var(--teal);
}

.contact-panel a.is-primary:hover {
    background: var(--teal-dark);
    border-color: var(--teal-dark);
}

.site-footer {
    background: #111519;
    color: #fff;
    padding: 34px 0;
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    gap: 28px;
}

.site-footer p,
.site-footer a {
    color: rgba(255, 255, 255, .72);
}

.footer-links {
    display: grid;
    gap: 6px;
    text-align: right;
}

.content-page {
    min-height: 55vh;
}

.content-page h1 {
    margin: 0 0 22px;
    font-size: clamp(34px, 6vw, 64px);
    line-height: 1;
}

.entry-content > * + * {
    margin-top: 18px;
}

@media (max-width: 980px) {
    .service-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .trust-grid,
    .package-grid,
    .tech-profile-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .intro-grid,
    .certificate-grid,
    .contact-grid,
    .experience-grid,
    .reputation-grid,
    .reputation-board,
    .split-list-grid,
    .system-map-layout,
    .cases-layout {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .sticky-heading {
        position: static;
    }

    .workflow-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .workflow-grid::before,
    .workflow-grid::after {
        display: none;
    }

    .system-map-visual {
        min-height: 430px;
    }

    .certificate-showcase {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .site-project-list {
        grid-template-columns: 1fr;
    }

    .certificate-card--featured {
        grid-column: 1 / -1;
        grid-row: auto;
    }

    .certificate-card--featured figure {
        grid-template-rows: 420px auto;
    }
}

@media (max-width: 760px) {
    .container,
    .narrow {
        width: min(100% - 28px, 1180px);
    }

    .header-inner {
        min-height: 66px;
    }

    .menu-toggle {
        display: block;
    }

    .primary-nav {
        position: absolute;
        left: 14px;
        right: 14px;
        top: 72px;
        display: none;
        padding: 10px;
        border: 1px solid var(--line);
        border-radius: var(--radius);
        background: var(--surface);
        box-shadow: var(--shadow);
    }

    .primary-nav.is-open {
        display: block;
    }

    .primary-nav .menu {
        display: grid;
        gap: 2px;
    }

    .primary-nav a {
        width: 100%;
    }

    .hero {
        min-height: auto;
        background-image: linear-gradient(180deg, rgba(10, 13, 15, .88) 0%, rgba(10, 13, 15, .78) 58%, rgba(10, 13, 15, .34) 100%), var(--hero-image);
        background-position: 58% center;
    }

    .hero-grid {
        padding: 58px 0 98px;
    }

    .lead {
        font-size: 18px;
    }

    .hero-actions {
        display: grid;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        margin-top: 30px;
    }

    .hero-stats span {
        min-height: 72px;
    }

    .section {
        padding: 62px 0;
    }

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

    .trust-grid,
    .package-grid,
    .tech-profile-grid {
        grid-template-columns: 1fr;
    }

    .certificate-showcase {
        grid-template-columns: 1fr;
        padding: 12px;
    }

    .reputation-board,
    .site-project-list {
        grid-template-columns: 1fr;
    }

    .certificate-card figure,
    .certificate-card--featured figure {
        grid-template-rows: 300px auto;
    }

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

    .service-card,
    .trust-card,
    .package-card {
        min-height: auto;
    }

    .timeline div,
    .case-row {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .case-row p {
        font-size: 19px;
    }

    .certificate-lightbox {
        padding: 10px;
    }

    .certificate-lightbox__dialog {
        max-height: calc(100vh - 20px);
    }

    .certificate-lightbox img {
        height: calc(100vh - 116px);
    }

    .certificate-lightbox__nav {
        width: 42px;
        height: 54px;
        font-size: 34px;
    }

    .system-map-visual {
        min-height: 520px;
    }

    .map-node {
        min-width: 118px;
    }

    .node-server {
        left: 7%;
        top: 10%;
    }

    .node-network {
        left: 48%;
        top: 28%;
    }

    .node-business {
        left: 12%;
        right: auto;
        top: 45%;
    }

    .node-site {
        right: 8%;
        bottom: 26%;
    }

    .node-device {
        left: 8%;
        bottom: 8%;
    }

    .map-terminal {
        left: 8%;
        bottom: 7%;
        width: 84%;
    }

    .footer-grid {
        display: grid;
    }

    .footer-links {
        text-align: left;
    }
}

@keyframes tech-drift {
    from {
        transform: translate3d(0, 0, 0);
    }

    to {
        transform: translate3d(18px, -10px, 0);
    }
}

@keyframes signal-run {
    0% {
        left: 22px;
        opacity: .15;
    }

    18% {
        opacity: .9;
    }

    82% {
        opacity: .9;
    }

    100% {
        left: calc(100% - 74px);
        opacity: .15;
    }
}

@keyframes map-flow {
    to {
        stroke-dashoffset: -104;
    }
}

@keyframes node-pulse {
    0%,
    100% {
        opacity: .45;
        transform: scale(1);
    }

    50% {
        opacity: 1;
        transform: scale(1.35);
    }
}

@media (prefers-reduced-motion: reduce) {
    .hero::before,
    .workflow-grid::after,
    .map-line,
    .map-pulse {
        animation: none;
    }
}

@media (max-width: 420px) {
    .brand-text small {
        display: none;
    }

    .hero h1 {
        font-size: 44px;
    }
}