:root {
    --bg: #020817;
    --bg-secondary: #071120;
    --card: rgba(10, 19, 36, 0.92);
    --card-hover: #12243c;

    --text: #f8fafc;
    --muted: #94a3b8;

    --primary: #38bdf8;
    --primary-dark: #0284c7;

    --green: #22c55e;

    --border: rgba(148, 163, 184, 0.16);

    --shadow: 0 25px 70px rgba(2, 8, 23, 0.45);

    --max-width: 1180px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    min-height: 100%;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    font-family:
        Inter,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Arial,
        sans-serif;

    background:
        radial-gradient(circle at top left, rgba(56, 189, 248, 0.14), transparent 24%),
        radial-gradient(circle at 85% 10%, rgba(37, 99, 235, 0.18), transparent 22%),
        var(--bg);
    color: var(--text);

    line-height: 1.6;
}

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

button {
    font: inherit;
}

.container {
    width: min(92%, var(--max-width));
    margin: auto;
}


/* =========================
   NAVBAR
========================= */

.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;

    padding: 16px 0;

    background: rgba(2, 8, 23, 0.8);

    backdrop-filter: blur(16px);

    border-bottom: 1px solid var(--border);
    box-shadow: 0 10px 30px rgba(2, 8, 23, 0.25);
}

.nav-container {
    min-height: 74px;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;

    padding: 14px 20px;

    border-radius: 24px;

    background: rgba(7, 17, 31, 0.92);

    border: 1px solid rgba(56, 189, 248, 0.16);

    box-shadow: 0 16px 40px rgba(2, 8, 23, 0.28);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-text {
    display: flex;
    align-items: center;
    line-height: 1;
}

.brand-text strong {
    font-size: 19px;
    color: var(--text);
}

.brand-text.single-line strong {
    letter-spacing: 0.2px;
}

.nav-panel {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
    justify-content: flex-end;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;

    padding: 6px;

    border-radius: 999px;

    background: rgba(255, 255, 255, 0.04);

    border: 1px solid rgba(148, 163, 184, 0.12);
}

.nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    padding: 10px;
    background: rgba(2, 8, 23, 0.98);
    border-radius: 16px;
    box-shadow: 0 16px 36px rgba(2, 8, 23, 0.35);
}

.nav-links a {
    color: var(--muted);

    font-size: 14px;

    padding: 8px 12px;

    border-radius: 999px;

    transition: 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text);
    background: rgba(56, 189, 248, 0.14);
}

.nav-actions {
    display: flex;
    gap: 10px;
}

.btn {
    border: 0;

    border-radius: 8px;

    padding: 10px 18px;

    cursor: pointer;

    font-weight: 600;

    transition:
        transform 0.2s,
        background 0.2s;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-primary {
    color: #03111c;

    background: var(--primary);
}

.btn-primary:hover {
    background: #7dd3fc;
}

.btn-outline {
    background: transparent;

    color: var(--text);

    border: 1px solid var(--border);
}

.btn-ghost {
    background: rgba(255,255,255,0.05);

    color: var(--text);

    border: 1px solid var(--border);
}

.btn-large {
    padding: 14px 24px;
}

.mobile-menu {
    display: none;

    border: 0;

    background: transparent;

    color: white;

    font-size: 26px;

    cursor: pointer;
}


/* =========================
   HERO
========================= */

.hero {
    min-height: 760px;

    position: relative;

    overflow: hidden;

    display: flex;
    align-items: center;

    padding: 90px 0 70px;

    background:
        radial-gradient(circle at 15% 30%, rgba(14, 165, 233, 0.18), transparent 33%),
        radial-gradient(circle at 85% 60%, rgba(37, 99, 235, 0.2), transparent 35%),
        linear-gradient(135deg, rgba(9, 15, 30, 0.96), rgba(5, 11, 24, 0.95));
}

.hero::before,
.hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    filter: blur(70px);
    pointer-events: none;
}

.hero::before {
    width: 280px;
    height: 280px;
    left: -80px;
    top: -40px;
    background: rgba(56, 189, 248, 0.17);
}

.hero::after {
    width: 260px;
    height: 260px;
    right: -40px;
    bottom: 60px;
    background: rgba(37, 99, 235, 0.18);
}

.hero-grid {
    position: absolute;

    inset: 0;

    opacity: 0.08;

    background-image:
        linear-gradient(#94a3b8 1px, transparent 1px),
        linear-gradient(90deg, #94a3b8 1px, transparent 1px);

    background-size: 50px 50px;

    mask-image: linear-gradient(
        to bottom,
        black,
        transparent
    );
}

.hero-container {
    position: relative;

    display: grid;

    grid-template-columns: 1fr 1fr;

    gap: 70px;

    align-items: center;
}

.hero-badge {
    display: inline-flex;

    align-items: center;

    gap: 8px;

    padding: 8px 14px;

    margin-bottom: 24px;

    border-radius: 999px;

    background: rgba(56, 189, 248, 0.08);

    border: 1px solid rgba(56, 189, 248, 0.22);

    color: #7dd3fc;

    font-size: 13px;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.status-dot {
    width: 7px;
    height: 7px;

    border-radius: 50%;

    background: var(--green);
}

.hero h1 {
    font-size: clamp(45px, 6vw, 72px);

    line-height: 1.05;

    letter-spacing: -3px;

    margin-bottom: 25px;
}

.hero h1 span {
    display: block;

    color: var(--primary);
}

.hero p {
    max-width: 600px;

    color: var(--muted);

    font-size: 18px;

    margin-bottom: 32px;
}

.hero-buttons {
    display: flex;

    gap: 12px;

    flex-wrap: wrap;
}

.hero-stats {
    display: flex;

    gap: 40px;

    margin-top: 50px;
}

.hero-stats div {
    display: flex;

    flex-direction: column;
}

.hero-stats strong {
    font-size: 26px;
}

.hero-stats span {
    color: var(--muted);

    font-size: 13px;
}


/* =========================
   TERMINAL
========================= */

.hero-visual {
    position: relative;

    min-height: 430px;

    display: flex;

    align-items: center;

    justify-content: center;
}

.cyber-card {
    width: 100%;

    max-width: 520px;

    overflow: hidden;

    border-radius: 18px;

    background: linear-gradient(145deg, #050b14 0%, #071423 100%);

    border: 1px solid rgba(56, 189, 248, 0.22);

    box-shadow: var(--shadow);
}

.terminal-header {
    height: 42px;

    display: flex;

    align-items: center;

    gap: 15px;

    padding: 0 15px;

    color: var(--muted);

    font-size: 12px;

    background: #0b1422;

    border-bottom: 1px solid var(--border);
}

.terminal-dots {
    display: flex;

    gap: 5px;
}

.terminal-dots span {
    width: 8px;
    height: 8px;

    border-radius: 50%;

    background: #64748b;
}

.terminal-body {
    padding: 30px;

    font-family:
        "SFMono-Regular",
        Consolas,
        monospace;

    font-size: 14px;

    line-height: 2;
}

.terminal-green {
    color: var(--green);
}

.terminal-output {
    color: #64748b;

    padding-left: 18px;
    margin-bottom: 6px;
}

.terminal-line {
    display: flex;
    gap: 6px;
    margin-bottom: 6px;
    animation: terminalFade 0.7s ease forwards;
    opacity: 0;
}

.terminal-line.delay-1 {
    animation-delay: 0.5s;
}

.terminal-line.delay-3 {
    animation-delay: 1.2s;
}

.terminal-output.delay-2 {
    animation-delay: 0.8s;
}

.terminal-output.delay-4 {
    animation-delay: 1.6s;
}

.terminal-success.delay-5 {
    animation-delay: 1.9s;
}

.terminal-command {
    color: #e2e8f0;
}

.terminal-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.12);
    color: #7dd3fc;
    font-size: 11px;
    margin-right: 8px;
}

.terminal-success {
    color: var(--green);
    animation: terminalFade 0.7s ease forwards;
    opacity: 0;
}

@keyframes terminalFade {
    from {
        opacity: 0;
        transform: translateY(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

.floating-card {
    position: absolute;

    display: flex;

    align-items: center;

    gap: 12px;

    padding: 12px 15px;

    border-radius: 12px;

    background: rgba(14, 28, 48, 0.96);

    border: 1px solid rgba(56, 189, 248, 0.2);

    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.32);
    backdrop-filter: blur(12px);
}

.floating-card i {
    color: var(--primary);

    font-size: 23px;
}

.floating-card div {
    display: flex;

    flex-direction: column;
}

.floating-card strong {
    font-size: 13px;
}

.floating-card span {
    color: var(--muted);

    font-size: 11px;
}

.card-one {
    left: -20px;
    top: 80px;
}

.card-two {
    right: -20px;
    bottom: 75px;
}


/* =========================
   FEATURES
========================= */

.features {
    background: var(--bg-secondary);

    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.features-grid {
    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 30px;

    padding: 28px 0;
}

.feature {
    display: flex;

    align-items: center;

    gap: 15px;
}

.feature-icon {
    width: 45px;
    height: 45px;

    display: flex;

    align-items: center;
    justify-content: center;

    border-radius: 10px;

    background: rgba(56, 189, 248, 0.08);

    color: var(--primary);

    font-size: 20px;
}

.feature h3 {
    font-size: 14px;
}

.feature p {
    color: var(--muted);

    font-size: 12px;
}


/* =========================
   SECTIONS
========================= */

.section {
    padding: 100px 0;
}

.section-header {
    display: flex;

    justify-content: space-between;

    align-items: end;

    margin-bottom: 40px;
}

.section-label {
    display: block;

    color: var(--primary);

    font-size: 11px;

    font-weight: 700;

    letter-spacing: 2px;

    margin-bottom: 10px;
}

.section h2 {
    font-size: 38px;

    line-height: 1.15;
}

.view-all {
    color: var(--primary);

    font-size: 14px;

    display: flex;

    gap: 8px;
}


/* =========================
   COURSES
========================= */

.course-grid {
    display: grid;

    grid-template-columns:
        repeat(4, 1fr);

    gap: 20px;
}

.course-card {
    overflow: hidden;

    background: linear-gradient(180deg, rgba(14, 28, 48, 0.98), rgba(8, 17, 32, 0.96));

    border: 1px solid var(--border);

    border-radius: 16px;

    box-shadow: 0 16px 40px rgba(2, 8, 23, 0.24);

    transition:
        transform 0.25s,
        border-color 0.25s,
        box-shadow 0.25s;
}

.course-card:hover {
    transform: translateY(-6px);

    border-color: rgba(56, 189, 248, 0.35);
    box-shadow: 0 22px 55px rgba(2, 8, 23, 0.34);
}

.course-image {
    height: 190px;

    display: flex;

    align-items: center;
    justify-content: center;

    position: relative;

    overflow: hidden;
}

.course-image::before {
    content: "";

    position: absolute;

    width: 180px;
    height: 180px;

    border-radius: 50%;

    border: 1px solid rgba(255,255,255,0.1);
}

.course-image.security {
    background:
        linear-gradient(
            135deg,
            #082f49,
            #0c4a6e
        );
}

.course-image.cloud {
    background:
        linear-gradient(
            135deg,
            #172554,
            #1e40af
        );
}

.course-image.devops {
    background:
        linear-gradient(
            135deg,
            #1c1917,
            #44403c
        );
}

.course-image.network {
    background:
        linear-gradient(
            135deg,
            #052e16,
            #166534
        );
}

.course-icon {
    font-size: 65px;

    opacity: 0.85;
}

.course-category {
    position: absolute;

    top: 15px;
    left: 15px;

    padding: 5px 8px;

    font-size: 9px;

    font-weight: 700;

    letter-spacing: 1px;

    border-radius: 5px;

    background: rgba(0,0,0,0.3);
}

.course-body {
    padding: 20px;
}

.course-meta {
    display: flex;

    gap: 15px;

    color: var(--muted);

    font-size: 11px;

    margin-bottom: 12px;
}

.course-body h3 {
    font-size: 18px;

    margin-bottom: 10px;
}

.course-body p {
    color: var(--muted);

    font-size: 13px;

    min-height: 63px;

    margin-bottom: 20px;
}

.course-footer {
    display: flex;

    justify-content: space-between;

    align-items: center;

    padding-top: 15px;

    border-top: 1px solid var(--border);
}

.course-footer strong {
    color: var(--primary);

    font-size: 15px;
}

.course-btn {
    border: 0;

    background: transparent;

    color: var(--text);

    cursor: pointer;

    font-size: 11px;

    font-weight: 600;
}

.catalog-shell {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 24px;
    align-items: start;
}

.filter-panel {
    padding: 24px;
    border-radius: 20px;
    background: linear-gradient(180deg, rgba(10, 19, 36, 0.95), rgba(7, 15, 28, 0.95));
    border: 1px solid var(--border);
    box-shadow: 0 10px 30px rgba(2, 8, 23, 0.24);
    position: sticky;
    top: 110px;
}

.filter-group {
    margin-bottom: 24px;
}

.filter-group h3 {
    font-size: 14px;
    margin-bottom: 10px;
}

.filter-chip {
    display: block;
    width: 100%;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--muted);
    border-radius: 10px;
    padding: 9px 12px;
    text-align: left;
    margin-bottom: 8px;
    cursor: pointer;
    transition: 0.2s ease;
}

.filter-chip:hover,
.filter-chip.active {
    color: var(--text);
    border-color: rgba(56, 189, 248, 0.3);
    background: rgba(56, 189, 248, 0.12);
}

.catalog-main {
    min-width: 0;
}

.catalog-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.toolbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 220px;
    padding: 10px 12px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
}

.search-box input {
    width: 100%;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--text);
}

.sort-select {
    padding: 10px 12px;
    border-radius: 12px;
    border: 1px solid var(--border);
    color: var(--text);
    background: rgba(255, 255, 255, 0.04);
}

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.course-card--list {
    display: grid;
    grid-template-columns: 150px 1fr;
    min-height: 100%;
}

.course-card--list .course-image {
    height: 100%;
    min-height: 100%;
}

.course-card--list .course-body {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}


/* =========================
   CATEGORIES
========================= */

.categories-section {
    background: var(--bg-secondary);
}

.center-header {
    max-width: 650px;

    margin: 0 auto 50px;

    text-align: center;
}

.center-header h2 {
    margin-bottom: 15px;
}

.center-header p {
    color: var(--muted);
}

.categories-grid {
    display: grid;

    grid-template-columns:
        repeat(6, 1fr);

    gap: 15px;
}

.category-card {
    padding: 30px 15px;

    text-align: center;

    background: linear-gradient(180deg, rgba(14, 28, 48, 0.95), rgba(9, 17, 32, 0.95));

    border: 1px solid var(--border);

    border-radius: 14px;

    transition: 0.2s;
    box-shadow: 0 10px 24px rgba(2, 8, 23, 0.2);
}

.category-card:hover {
    transform: translateY(-4px);

    border-color:
        rgba(56, 189, 248, 0.4);
}

.category-card i {
    color: var(--primary);

    font-size: 30px;

    display: block;

    margin-bottom: 15px;
}

.category-card h3 {
    font-size: 14px;

    margin-bottom: 5px;
}

.category-card span {
    color: var(--muted);

    font-size: 11px;
}


/* =========================
   PLAYGROUND
========================= */

.playground-section {
    padding: 100px 0 120px;
}

.playground-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.playground-card {
    padding: 28px;
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(14, 28, 48, 0.95), rgba(9, 17, 32, 0.95));
    border: 1px solid var(--border);
    box-shadow: 0 12px 28px rgba(2, 8, 23, 0.2);
}

.playground-card i {
    color: var(--primary);
    font-size: 28px;
    display: block;
    margin-bottom: 16px;
}

.playground-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.playground-card p {
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 16px;
}

.playground-card a {
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
}


/* =========================
   CONTACT
========================= */

.contact-section {
    padding: 100px 0;

    background: var(--bg-secondary);
}

.contact-grid {
    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 20px;
}

.contact-card {
    text-align: center;

    padding: 30px;

    border-radius: 14px;

    background: linear-gradient(180deg, rgba(14, 28, 48, 0.95), rgba(9, 17, 32, 0.95));

    border: 1px solid var(--border);
    box-shadow: 0 10px 24px rgba(2, 8, 23, 0.2);
}

.contact-card i {
    color: var(--primary);

    font-size: 30px;

    display: block;

    margin-bottom: 15px;
}

.contact-card h3 {
    font-size: 16px;

    margin-bottom: 5px;
}

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

    font-size: 13px;
}


/* =========================
   FOOTER
========================= */

footer {
    background: #040a12;
}

.footer-grid {
    display: grid;

    grid-template-columns:
        2fr 1fr 1fr 1fr;

    gap: 50px;

    padding: 70px 0;
}

.footer-brand p {
    color: var(--muted);

    max-width: 300px;

    font-size: 13px;

    margin-top: 18px;
}

.footer-column {
    display: flex;

    flex-direction: column;

    gap: 10px;
}

.footer-column h4 {
    font-size: 13px;

    margin-bottom: 8px;
}

.footer-column a {
    color: var(--muted);

    font-size: 12px;
}

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

.socials {
    display: flex;

    gap: 10px;
}

.socials a {
    width: 35px;
    height: 35px;

    display: flex;

    align-items: center;
    justify-content: center;

    border-radius: 7px;

    background: rgba(255,255,255,0.05);
}

.footer-bottom {
    padding: 20px 0;

    border-top: 1px solid var(--border);

    color: #64748b;

    font-size: 11px;
}


/* =========================
   PAGE TEMPLATES
========================= */

.pill-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

.pill {
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.12);
    color: var(--primary);
    font-size: 12px;
    font-weight: 600;
}

.category-hub-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin-bottom: 40px;
}

.category-hub-card {
    padding: 24px;
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(14, 28, 48, 0.95), rgba(9, 17, 32, 0.95));
    border: 1px solid var(--border);
    box-shadow: 0 12px 28px rgba(2, 8, 23, 0.2);
}

.category-hub-card i {
    color: var(--primary);
    font-size: 24px;
    display: block;
    margin-bottom: 12px;
}

.category-hub-card h3 {
    margin-bottom: 10px;
    font-size: 18px;
}

.category-hub-card p {
    color: var(--muted);
    font-size: 13px;
}

.page-hero {
    padding: 90px 0 60px;
    background: linear-gradient(135deg, rgba(12, 25, 46, 0.96), rgba(5, 11, 24, 0.95));
}

.page-hero.compact {
    padding: 70px 0 40px;
}

.page-hero-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr;
    gap: 30px;
    align-items: center;
}

.page-hero h1 {
    font-size: clamp(34px, 4.4vw, 50px);
    line-height: 1.08;
    margin-bottom: 16px;
}

.page-hero p {
    color: var(--muted);
    max-width: 620px;
    font-size: 16px;
}

.page-hero-card,
.page-card {
    padding: 24px;
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(14, 28, 48, 0.95), rgba(9, 17, 32, 0.95));
    border: 1px solid var(--border);
    box-shadow: 0 16px 40px rgba(2, 8, 23, 0.24);
}

.course-hero-card {
    padding: 28px;
    background: linear-gradient(145deg, rgba(14, 28, 48, 0.98), rgba(8, 17, 32, 0.96));
}

.course-hero-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.course-badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.14);
    color: var(--primary);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
}

.text-link {
    display: inline-flex;
    margin-top: 12px;
    color: var(--primary);
    font-weight: 600;
}

.feature-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 24px 28px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.14), rgba(14, 28, 48, 0.95));
    border: 1px solid rgba(56, 189, 248, 0.2);
    margin-bottom: 36px;
}

.feature-banner h3 {
    font-size: 22px;
    line-height: 1.3;
}

.page-hero-card h3,
.page-card h3 {
    margin-bottom: 12px;
}

.page-hero-card ul {
    list-style: none;
    display: grid;
    gap: 12px;
    color: var(--muted);
}

.page-hero-card i,
.page-card i {
    color: var(--primary);
    margin-right: 8px;
}

.page-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.page-card span {
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
}

.contact-page-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 20px;
}

.contact-form {
    display: grid;
    gap: 14px;
}

.contact-form label {
    display: grid;
    gap: 8px;
    color: var(--text);
    font-size: 14px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    border-radius: 10px;
    padding: 12px 14px;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: 2px solid rgba(56, 189, 248, 0.25);
    border-color: var(--primary);
}

.contact-card p {
    margin-bottom: 10px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.pricing-card {
    text-align: center;
}

.pricing-card .price {
    font-size: 42px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
}

.pricing-card .price span {
    font-size: 16px;
    color: var(--muted);
}

.pricing-card ul {
    list-style: none;
    display: grid;
    gap: 10px;
    color: var(--muted);
    margin-bottom: 20px;
}

.pricing-card.featured {
    border-color: rgba(56, 189, 248, 0.34);
    box-shadow: 0 20px 48px rgba(2, 8, 23, 0.28);
}

@media (max-width: 1000px) {

    .nav-panel {
        display: none;
    }

    .mobile-menu {
        display: block;
    }

    .hero-container {
        grid-template-columns: 1fr;
    }

    .hero {
        padding: 80px 0;
    }

    .hero-visual {
        min-height: 400px;
    }

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

    .categories-grid {
        grid-template-columns:
            repeat(3, 1fr);
    }

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

    .page-hero-grid,
    .contact-page-grid,
    .feature-banner {
        grid-template-columns: 1fr;
    }

    .feature-banner {
        display: grid;
    }

    .catalog-shell {
        grid-template-columns: 1fr;
    }

    .filter-panel {
        position: static;
    }

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

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

    .category-hub-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

}


@media (max-width: 650px) {

    .nav-actions {
        display: none;
    }

    .nav-container {
        padding: 12px 14px;
    }

    .hero h1 {
        font-size: 45px;
    }

    .catalog-toolbar,
    .toolbar-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .search-box {
        width: 100%;
    }

    .hero-stats {
        gap: 25px;
        flex-wrap: wrap;
    }

    .hero-content {
        max-width: 100%;
    }

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

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

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

    .section {
        padding: 70px 0;
    }

    .section-header {
        align-items: start;

        flex-direction: column;

        gap: 15px;
    }

    .cta-box {
        flex-direction: column;

        align-items: start;

        padding: 35px;
    }

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

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

    .card-one {
        left: -5px;
    }

    .card-two {
        right: -5px;
    }

    .cyber-card {
        width: 95%;
    }

}