:root {
    --bg:#050806;
    --panel:#0b100d;
    --panel2:#101711;
    --green:#20ff73;
    --green2:#00ca58;
    --text:#e8ffee;
    --muted:#94ad9b;
    --line:#1c3825;
}

* {
    box-sizing:border-box;
}

html {
    scroll-behavior:smooth;
}

body {
    margin:0;
    background:
        radial-gradient(circle at 50% -20%, #153b22 0, transparent 38%),
        #050806;
    color:var(--text);
    font-family:
        Inter,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
}

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

nav {
    height:76px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:0 5vw;
    border-bottom:1px solid var(--line);
    background:rgba(4,8,5,.88);
    backdrop-filter:blur(18px);
    position:sticky;
    top:0;
    z-index:50;
}

.brand {
    font-weight:900;
    letter-spacing:1px;
    font-size:22px;
}

.brand span,
.brandmark {
    color:var(--green);
}

.brandmark {
    margin-right:8px;
    font-family:monospace;
}

.navlinks {
    display:flex;
    gap:28px;
    color:#bdd0c1;
    font-size:14px;
    font-weight:600;
}

.navlinks a:hover {
    color:var(--green);
}

.hero {
    min-height:760px;
    display:flex;
    align-items:center;
    justify-content:center;
    text-align:center;
    position:relative;
    overflow:hidden;
    padding:90px 20px;
}

.hero:before {
    content:"";
    position:absolute;
    inset:0;
    background-image:
        linear-gradient(rgba(32,255,115,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(32,255,115,.035) 1px, transparent 1px);
    background-size:42px 42px;
    mask-image:linear-gradient(to bottom, black, transparent);
}

.hero-inner {
    width:min(1050px,96%);
    position:relative;
    z-index:2;
}

.eyebrow {
    color:var(--green);
    letter-spacing:4px;
    font-weight:800;
    font-size:12px;
    margin-bottom:18px;
}

.hero h1,
.course-hero h1 {
    margin:0;
    font-size:clamp(48px,8vw,96px);
    line-height:.96;
    letter-spacing:-4px;
}

.hero h1 span {
    color:var(--green);
}

.hero > div > p,
.course-hero p {
    color:var(--muted);
    font-size:19px;
    line-height:1.65;
    max-width:760px;
    margin:28px auto;
}

.hero-buttons {
    display:flex;
    justify-content:center;
    gap:14px;
    margin:34px 0;
    flex-wrap:wrap;
}

.btn {
    border:1px solid #31543a;
    padding:15px 24px;
    border-radius:8px;
    font-weight:900;
    font-size:13px;
    letter-spacing:1px;
}

.btn:hover {
    border-color:var(--green);
}

.btn.primary {
    color:#001907;
    background:var(--green);
    border-color:var(--green);
}

.terminal-preview {
    max-width:760px;
    margin:55px auto 0;
    text-align:left;
    background:#020403;
    border:1px solid #275433;
    border-radius:13px;
    box-shadow:
        0 0 80px rgba(32,255,115,.08),
        0 24px 80px rgba(0,0,0,.5);
    overflow:hidden;
}

.terminal-top {
    height:42px;
    padding:11px 15px;
    background:#0c120e;
    border-bottom:1px solid #1a3120;
    color:#6f8575;
    font-family:monospace;
    font-size:12px;
}

.terminal-top span {
    width:10px;
    height:10px;
    border-radius:50%;
    display:inline-block;
    background:#29442f;
    margin-right:5px;
}

.terminal-preview pre {
    padding:26px;
    color:#a9cdb2;
    line-height:1.8;
    font-size:14px;
    min-height:240px;
}

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

.section {
    width:min(1300px,92%);
    margin:auto;
    padding:90px 0;
}

.section.narrow {
    width:min(950px,92%);
}

.section-heading {
    display:flex;
    justify-content:space-between;
    gap:30px;
    align-items:end;
    margin-bottom:42px;
}

.section-heading h2 {
    margin:0;
    font-size:42px;
}

.section-heading p {
    color:var(--muted);
    max-width:440px;
}

.course-grid {
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:18px;
}

.course-card {
    background:
        linear-gradient(145deg,rgba(20,35,24,.9),rgba(6,10,7,.95));
    border:1px solid var(--line);
    padding:28px;
    min-height:285px;
    border-radius:12px;
    position:relative;
    transition:.22s ease;
}

.course-card:hover {
    transform:translateY(-4px);
    border-color:var(--green2);
    box-shadow:0 18px 60px rgba(0,0,0,.4);
}

.course-icon {
    font-size:32px;
}

.course-icon.huge {
    font-size:70px;
    min-width:110px;
}

.level {
    display:inline-block;
    margin:25px 0 8px;
    color:var(--green);
    font-size:11px;
    font-weight:900;
    letter-spacing:2px;
    text-transform:uppercase;
}

.course-card h3 {
    font-size:25px;
    margin:7px 0 12px;
}

.course-card p {
    color:var(--muted);
    line-height:1.55;
    font-size:14px;
}

.lesson-count {
    position:absolute;
    left:28px;
    right:28px;
    bottom:22px;
    color:#77917d;
    font-size:13px;
    display:flex;
    justify-content:space-between;
}

.lesson-count span {
    color:var(--green);
}

.features {
    width:min(1300px,92%);
    margin:0 auto 100px;
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    display:grid;
    grid-template-columns:repeat(4,1fr);
}

.feature {
    padding:40px 30px;
    border-right:1px solid var(--line);
}

.feature:last-child {
    border:0;
}

.feature strong {
    font-family:monospace;
    color:var(--green);
}

.feature h3 {
    letter-spacing:2px;
}

.feature p {
    color:var(--muted);
    line-height:1.6;
}

.course-hero {
    width:min(1100px,92%);
    margin:auto;
    padding:110px 0 70px;
    display:flex;
    align-items:center;
    gap:38px;
    border-bottom:1px solid var(--line);
}

.course-hero h1 {
    font-size:clamp(48px,6vw,76px);
}

.course-hero p {
    margin:18px 0 0;
}

.course-lessons {
    display:flex;
    flex-direction:column;
    gap:16px;
}

.lesson {
    display:grid;
    grid-template-columns:80px 1fr;
    gap:24px;
    padding:30px;
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:12px;
}

.lesson-number {
    color:var(--green);
    font-family:monospace;
    font-size:26px;
}

.lesson h2 {
    margin:0 0 7px;
}

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

.codebox {
    border-left:3px solid var(--green);
    background:#020403;
    padding:10px 18px;
    margin:20px 0;
    overflow:auto;
}

.codebox pre {
    color:#a9d6b4;
    font-family:
        "Ubuntu Mono",
        "DejaVu Sans Mono",
        monospace;
    line-height:1.7;
}

.complete {
    background:transparent;
    color:var(--green);
    border:1px solid #2c6b3d;
    border-radius:6px;
    padding:10px 14px;
    font-weight:800;
    cursor:pointer;
}

.complete.done {
    background:var(--green);
    color:#001807;
}

.terminal-big {
    background:#010302;
    border:1px solid #2c6139;
    border-radius:12px;
    overflow:hidden;
    min-height:560px;
    box-shadow:0 20px 90px rgba(0,0,0,.55);
    font-family:monospace;
}

#screen {
    height:470px;
    overflow:auto;
    padding:24px;
    color:#b6d7bd;
    line-height:1.6;
}

#screen b,
.promptline span {
    color:var(--green);
}

#screen pre {
    white-space:pre-wrap;
    color:#a6c3ac;
}

.promptline {
    border-top:1px solid #17371f;
    display:flex;
    padding:16px 22px;
    gap:10px;
}

.promptline input {
    flex:1;
    background:transparent;
    border:0;
    outline:0;
    color:white;
    font:inherit;
}

.roadmap {
    display:flex;
    flex-direction:column;
    gap:10px;
}

.roadmap-row {
    display:grid;
    grid-template-columns:55px 60px 1fr 110px;
    align-items:center;
    gap:18px;
    border:1px solid var(--line);
    background:var(--panel);
    padding:22px;
    border-radius:10px;
}

.roadmap-row:hover {
    border-color:var(--green);
}

.road-num,
.road-level {
    color:var(--green);
    font-family:monospace;
}

.road-icon {
    font-size:32px;
}

.road-text h2 {
    margin:0;
}

.road-text p {
    color:var(--muted);
    margin:6px 0 0;
}

.road-level {
    text-align:right;
    font-size:12px;
}

.about-panel {
    padding:42px;
    border:1px solid var(--line);
    background:var(--panel);
    border-radius:12px;
}

.about-panel h2 {
    color:var(--green);
    font-size:28px;
}

.about-panel p {
    color:#b2c5b6;
    line-height:1.8;
    font-size:17px;
}

footer {
    text-align:center;
    padding:55px 20px;
    border-top:1px solid var(--line);
    color:#708176;
    font-size:13px;
    line-height:1.8;
}

footer strong {
    color:var(--green);
}

@media(max-width:900px) {

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

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

    .course-hero {
        align-items:flex-start;
    }
}

@media(max-width:650px) {

    nav {
        padding:0 18px;
    }

    .navlinks a:not(:first-child) {
        display:none;
    }

    .hero {
        min-height:640px;
    }

    .hero h1 {
        letter-spacing:-2px;
    }

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

    .feature {
        border-right:0;
        border-bottom:1px solid var(--line);
    }

    .section-heading {
        display:block;
    }

    .course-hero {
        display:block;
        padding-top:70px;
    }

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

    .roadmap-row {
        grid-template-columns:40px 45px 1fr;
    }

    .road-level {
        display:none;
    }
}

/* ==============================================================
   HACKERSKOOL LOCAL AI TUTOR
   ============================================================== */

.ai-engine {
    display:inline-block;
    margin-top:12px;
    padding:8px 12px;
    border:1px solid var(--line);
    border-radius:7px;
    color:var(--green);
    font-family:monospace;
    font-size:12px;
}

.tutor-shell {
    border:1px solid var(--line);
    border-radius:14px;
    overflow:hidden;
    background:#050806;
}

.tutor-toolbar {
    padding:18px 20px;
    border-bottom:1px solid var(--line);
    background:#0a0f0c;
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:20px;
}

.tutor-toolbar strong {
    font-size:17px;
}

#aiStatus {
    margin-top:5px;
    font-family:monospace;
    font-size:11px;
}

.status-online {
    color:var(--green);
}

.status-offline {
    color:#ff7070;
}

.clear-chat {
    background:transparent;
    color:#a8bdae;
    border:1px solid #29442f;
    border-radius:6px;
    padding:9px 12px;
    cursor:pointer;
    font-weight:800;
}

.clear-chat:hover {
    color:var(--green);
    border-color:var(--green);
}

.chat-window {
    min-height:420px;
    max-height:650px;
    overflow-y:auto;
    padding:24px;
}

.message {
    margin-bottom:25px;
    max-width:88%;
}

.message.user {
    margin-left:auto;
}

.message-label {
    color:#6f8975;
    font-family:monospace;
    font-size:10px;
    letter-spacing:2px;
    margin-bottom:7px;
}

.message.user .message-label {
    text-align:right;
}

.bubble {
    white-space:pre-wrap;
    overflow-wrap:anywhere;
    line-height:1.7;
    background:#0c120e;
    border:1px solid #1d3825;
    padding:16px 18px;
    border-radius:9px;
    color:#c8d9cc;
}

.message.user .bubble {
    background:#102016;
    border-color:#275534;
    color:#eaffef;
}

.tutor-form {
    padding:18px;
    border-top:1px solid var(--line);
    background:#080c09;
    display:grid;
    grid-template-columns:1fr auto;
    gap:12px;
    align-items:end;
}

.tutor-form textarea {
    resize:vertical;
    min-height:72px;
    max-height:220px;
    padding:14px;
    background:#020403;
    color:white;
    border:1px solid #29442f;
    border-radius:8px;
    outline:none;
    font:inherit;
}

.tutor-form textarea:focus {
    border-color:var(--green);
}

.send-button {
    min-height:72px;
    padding:0 22px;
    border:0;
    border-radius:8px;
    background:var(--green);
    color:#001707;
    font-weight:900;
    cursor:pointer;
}

.send-button:disabled {
    opacity:.55;
    cursor:wait;
}

.local-note {
    padding:0 18px 18px;
    background:#080c09;
    color:#64766a;
    font-size:11px;
    font-family:monospace;
}

@media(max-width:650px) {

    .tutor-form {
        grid-template-columns:1fr;
    }

    .send-button {
        min-height:50px;
    }

    .message {
        max-width:96%;
    }
}

/* ==============================================================
   HACKERSKOOL CYBER RANGE
   ============================================================== */

.lab-warning {
    border:1px solid var(--green);
    background:#07120a;
    border-radius:10px;
    padding:18px 22px;
    margin-bottom:30px;
    display:flex;
    gap:18px;
    align-items:center;
    flex-wrap:wrap;
}

.lab-warning strong {
    color:var(--green);
    font-family:monospace;
    letter-spacing:2px;
}

.lab-warning span {
    color:#9db1a2;
}

.lab-grid {
    display:grid;
    grid-template-columns:
        repeat(2,minmax(0,1fr));
    gap:18px;
}

.lab-card {
    border:1px solid #203c28;
    border-radius:12px;
    background:
        linear-gradient(
            145deg,
            #0b120d,
            #040705
        );
    padding:28px;
    min-height:245px;
    transition:.2s ease;
}

.lab-card:hover {
    border-color:var(--green);
    transform:translateY(-3px);
}

.lab-top {
    display:flex;
    justify-content:space-between;
    align-items:center;
}

.lab-icon {
    font-size:38px;
}

.lab-difficulty {
    color:var(--green);
    border:1px solid #285736;
    padding:6px 9px;
    border-radius:5px;
    font-size:10px;
    font-weight:900;
    letter-spacing:1px;
    text-transform:uppercase;
}

.lab-card h2 {
    margin:25px 0 10px;
    font-size:27px;
}

.lab-card p {
    color:#95aa9b;
    line-height:1.65;
}

.launch {
    color:var(--green);
    font-family:monospace;
    font-weight:bold;
    margin-top:22px;
}

@media(max-width:700px) {

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

}

/* ==============================================================
   HACKERSKOOL — HACKER.PNG WALLPAPER
   ============================================================== */

html,
body {
    min-height:100%;
}

body {
    background:
        linear-gradient(
            rgba(0, 8, 3, 0.54),
            rgba(0, 8, 3, 0.64)
        ),
        url("/static/hacker.png") center center / cover fixed no-repeat;
}

/* Let the wallpaper breathe through the interface */

nav {
    background:rgba(3, 9, 5, 0.72);
    backdrop-filter:blur(16px);
}

.hero {
    background:transparent;
}

.hero:before {
    background-image:
        linear-gradient(
            rgba(32,255,115,.04) 1px,
            transparent 1px
        ),
        linear-gradient(
            90deg,
            rgba(32,255,115,.04) 1px,
            transparent 1px
        );
}

.course-card,
.lesson,
.roadmap-row,
.about-panel,
.tutor-shell,
.lab-card {
    background:
        linear-gradient(
            145deg,
            rgba(5, 14, 8, 0.82),
            rgba(1, 5, 3, 0.76)
        );
    backdrop-filter:blur(10px);
}

.features {
    background:rgba(2, 7, 4, 0.48);
    backdrop-filter:blur(8px);
}

.course-hero {
    background:rgba(2, 8, 4, 0.32);
    backdrop-filter:blur(5px);
    padding-left:28px;
    padding-right:28px;
    border-radius:0 0 18px 18px;
}

.terminal-preview,
.terminal-big {
    background:rgba(0, 3, 1, 0.90);
}

.chat-window {
    background:rgba(0, 5, 2, 0.62);
}

.tutor-toolbar,
.tutor-form,
.local-note {
    background:rgba(2, 8, 4, 0.82);
}

/* stronger readability over detailed wallpaper */

.hero h1,
.course-hero h1,
.section-heading h2,
.course-card h3,
.lab-card h2 {
    text-shadow:
        0 2px 14px rgba(0,0,0,.95),
        0 0 18px rgba(32,255,115,.18);
}

.hero > div > p,
.course-hero p,
.course-card p,
.lab-card p,
.feature p,
.about-panel p {
    text-shadow:0 2px 8px rgba(0,0,0,.95);
}

/* subtle green edge vignette */

body:before {
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:-1;
    background:
        radial-gradient(
            circle at center,
            transparent 30%,
            rgba(0,0,0,.28) 74%,
            rgba(0,0,0,.68) 100%
        );
}

@media(max-width:700px) {
    body {
        background-attachment:scroll;
        background-position:center top;
    }
}

/* ==============================================================
   HACKERSKOOL — STRATEGIC CYBER RANGE
   ============================================================== */

.wargames-wrap {
    width:min(1200px,94%);
    margin:35px auto;
}

.wg-header {
    display:flex;
    justify-content:space-between;
    align-items:center;
    border:1px solid #25ff69;
    background:rgba(0,10,2,.88);
    padding:14px 18px;
    font-family:monospace;
    color:#25ff69;
    box-shadow:0 0 22px rgba(37,255,105,.18);
}

#defcon {
    color:#fff;
    text-shadow:0 0 12px #25ff69;
}

.wg-screen {
    min-height:620px;
    padding:30px;
    border:1px solid #1a7539;
    border-top:0;
    background:
        linear-gradient(
            rgba(0,12,4,.83),
            rgba(0,3,1,.92)
        );
    backdrop-filter:blur(6px);
    box-shadow:
        inset 0 0 80px rgba(0,255,70,.06),
        0 0 35px rgba(0,255,70,.08);
}

#wg-output {
    white-space:pre-wrap;
    min-height:510px;
    font-family:"Courier New",monospace;
    font-size:17px;
    line-height:1.55;
    color:#34ff72;
    text-shadow:0 0 8px rgba(52,255,114,.45);
    background:transparent;
    border:0;
}

.wg-input-row {
    display:flex;
    gap:10px;
    align-items:center;
    color:#34ff72;
    font-family:monospace;
    font-size:20px;
}

#wg-command {
    width:100%;
    border:0;
    border-bottom:1px solid #34ff72;
    outline:none;
    background:transparent;
    color:#fff;
    font-family:monospace;
    font-size:18px;
    padding:9px;
}

.mission-panel {
    padding:28px;
    border:1px solid #245932;
    border-radius:12px;
    background:rgba(2,10,4,.82);
    backdrop-filter:blur(10px);
}

.fake-mail {
    background:rgba(0,0,0,.72);
    border:1px solid #345a3c;
    padding:24px;
    margin:20px 0;
    line-height:1.65;
}

.mission-panel button {
    margin:6px;
    padding:11px 15px;
    border:1px solid #28ff6a;
    background:#07120a;
    color:#28ff6a;
    font-family:monospace;
    cursor:pointer;
}

.mission-panel button:hover {
    background:#28ff6a;
    color:#020502;
}

#phish-result,
#dos-output {
    margin-top:20px;
    min-height:160px;
    padding:20px;
    white-space:pre-wrap;
    background:#010402;
    color:#31ff70;
    border:1px solid #1e5e31;
}

.traffic-meter {
    width:100%;
    height:32px;
    background:#061008;
    border:1px solid #2b6f3d;
    margin:25px 0 10px;
}

#traffic-bar {
    width:18%;
    height:100%;
    background:#28ff6a;
    transition:width .35s ease;
}

#traffic-state {
    font-family:monospace;
    color:#28ff6a;
}