:root{
    --blue:#2145C9;
    --blue-dark:#1736A8;
    --red:#F2484B;
    --light:#F8FAFC;
    --text:#1F2937;
    --gray:#6B7280;
    --white:#ffffff;
    --border:#e5e7eb;
    --dark:#111827;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:Arial,Helvetica,sans-serif;background:var(--light);color:var(--text)}
img{max-width:100%}

.hero{min-height:100vh;padding:30px;background:radial-gradient(circle at 12% 18%,rgba(255,255,255,.14),transparent 28%),radial-gradient(circle at 85% 15%,rgba(242,72,75,.25),transparent 34%),radial-gradient(circle at 50% 90%,rgba(255,255,255,.10),transparent 35%),linear-gradient(135deg,var(--blue),var(--blue-dark))}
.top-nav{max-width:1380px;margin:0 auto 55px;display:flex;justify-content:flex-end;align-items:center;gap:24px}
.top-nav a{color:white;text-decoration:none;font-weight:900;font-size:15px;opacity:.95}
.top-nav a:hover{opacity:.75}
.socials{display:flex;gap:10px}
.social{width:38px;height:38px;border-radius:999px;background:rgba(255,255,255,.16);display:inline-flex;align-items:center;justify-content:center;color:white;border:1px solid rgba(255,255,255,.22)}
.center-logo{display:flex;align-items:center;justify-content:center;min-height:220px}
.center-logo img{max-width:260px;width:100%;filter:drop-shadow(0 24px 42px rgba(0,0,0,.32))}
.hero-layout{max-width:1420px;margin:auto;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:34px;align-items:center}
.project-card{position:relative;background:rgba(255,255,255,.96);border-radius:38px;padding:42px;overflow:hidden;min-height:420px;height:100%;box-shadow:0 35px 90px rgba(0,0,0,.20),inset 0 0 0 1px rgba(255,255,255,.65);border:2px solid rgba(255,255,255,.48)}
.project-card::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;top:-230px;opacity:.16;pointer-events:none}
.boost::before{background:var(--red);left:-180px}
.course::before{background:var(--blue);right:-180px}
.ground::before{background:#111827;left:50%;transform:translateX(-50%)}
.boost{border-top:8px solid var(--red)}
.course{border-top:8px solid var(--blue)}
.ground{border-top:8px solid #111827}
.social-top{position:absolute;top:30px;right:30px;display:flex;gap:12px;z-index:5}
.social-top img{width:32px;height:32px;opacity:.8;transition:opacity .2s ease}
.social-top img:hover{opacity:1}
.badge{position:relative;z-index:2;display:inline-block;padding:8px 16px;border-radius:999px;font-size:12px;font-weight:900;letter-spacing:.4px;margin-bottom:18px}
.boost .badge{background:rgba(242,72,75,.12);color:var(--red)}
.course .badge{background:rgba(33,69,201,.12);color:var(--blue)}
.ground .badge{background:rgba(17,24,39,.10);color:#111827}
.project-card h2{position:relative;z-index:2;font-size:clamp(28px,2.8vw,44px);line-height:1.05;letter-spacing:-1.4px;margin-bottom:28px}
.project-card h2::after{content:"";position:absolute;left:0;bottom:-14px;width:78px;height:6px;border-radius:999px}
.boost h2::after{background:var(--red)}
.course h2::after{background:var(--blue)}
.ground h2::after{background:#111827}
.project-card p{position:relative;z-index:2;color:var(--gray);line-height:1.85;margin-bottom:30px;font-size:16px;white-space:pre-line}
.button{position:relative;z-index:2;display:inline-flex;align-items:center;gap:10px;color:white;text-decoration:none;padding:15px 28px;border-radius:999px;font-weight:900;box-shadow:0 14px 28px rgba(0,0,0,.16);transition:transform .2s ease}
.button::after{content:"→"}
.boost .button{background:var(--red)}
.course .button{background:var(--blue)}
.ground .button{background:#111827}
.button:hover{transform:translateY(-2px)}
.section{max-width:1100px;margin:auto;padding:85px 24px;text-align:center}
.section h2{font-size:clamp(38px,5vw,56px);color:var(--blue);margin-bottom:20px;font-weight:900;letter-spacing:-1.8px}
.section p{color:var(--gray);line-height:1.85;font-size:18px}
.news-grid{margin-top:42px;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.news-card{background:#fff;border-radius:26px;padding:30px;text-align:left;border:1px solid var(--border);box-shadow:0 16px 40px rgba(0,0,0,.08)}
.news-date{color:var(--red);font-size:13px;font-weight:900;margin-bottom:12px}
.news-card h3{font-size:24px;line-height:1.25;margin-bottom:14px}
.news-card p{font-size:16px;line-height:1.75}
.partners{background:radial-gradient(circle at 20% 20%,rgba(242,72,75,.08),transparent 30%),radial-gradient(circle at 80% 25%,rgba(33,69,201,.09),transparent 34%),#fff}
.partners-grid{margin-top:42px;display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:24px}
.partner-logo{min-height:135px;background:white;border-radius:26px;padding:28px;display:flex;align-items:center;justify-content:center;box-shadow:0 16px 40px rgba(0,0,0,.08);border:1px solid var(--border)}
.partner-logo img{max-width:100%;max-height:86px;object-fit:contain}
.contact{background:radial-gradient(circle at 20% 25%,rgba(255,255,255,.10),transparent 28%),radial-gradient(circle at 85% 35%,rgba(242,72,75,.24),transparent 34%),linear-gradient(135deg,var(--blue),var(--blue-dark));color:white;text-align:center;padding:75px 20px}
.contact h2{font-size:clamp(38px,5vw,56px);margin-bottom:18px;font-weight:900;letter-spacing:-1.6px}
.contact p{line-height:1.7}
.contact a{color:white;text-decoration:none;font-weight:900}
.contact-links{display:flex;justify-content:center;flex-wrap:wrap;gap:18px;margin-top:26px}
.contact-link{padding:13px 22px;border-radius:999px;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.22)}

.app-page{min-height:100vh;padding:32px 16px;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 12% 18%,rgba(255,255,255,.14),transparent 28%),radial-gradient(circle at 85% 15%,rgba(242,72,75,.25),transparent 34%),radial-gradient(circle at 50% 90%,rgba(255,255,255,.10),transparent 35%),linear-gradient(135deg,var(--blue),var(--blue-dark))}
.app-shell{width:100%;max-width:820px}
.app-shell--narrow{max-width:520px}
.app-logo{text-align:center;margin-bottom:24px}
.app-logo a{display:inline-block}
.app-logo img{width:190px;max-width:70vw;filter:drop-shadow(0 20px 35px rgba(0,0,0,.25))}
.app-card{width:100%;background:rgba(255,255,255,.98);border:2px solid rgba(255,255,255,.48);border-top:8px solid var(--blue);border-radius:30px;padding:34px;box-shadow:0 35px 90px rgba(0,0,0,.20),inset 0 0 0 1px rgba(255,255,255,.65)}
.app-card--register{border-top-color:var(--red)}
.app-card--profile{border-top-color:var(--dark)}
.app-title{margin:0 0 10px;font-size:clamp(30px,5vw,44px);line-height:1.08;letter-spacing:-1.2px;font-weight:900}
.app-subtitle{margin:0 0 28px;color:var(--gray);line-height:1.7;font-size:16px}
.app-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.app-field{margin-bottom:18px}
.app-field--full{grid-column:1/-1}
.app-label{display:block;margin-bottom:8px;font-size:14px;font-weight:900;color:var(--text)}
.app-input,.app-textarea{width:100%;display:block;padding:14px 16px;border:2px solid var(--border);border-radius:14px;background:#fff;color:var(--text);font:inherit;font-size:16px;outline:none;transition:border-color .2s ease,box-shadow .2s ease}
.app-textarea{min-height:130px;resize:vertical}
.app-input:focus,.app-textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(33,69,201,.10)}
.app-button{width:100%;border:0;border-radius:999px;padding:15px 24px;background:var(--blue);color:#fff;font:inherit;font-weight:900;font-size:16px;cursor:pointer;box-shadow:0 14px 28px rgba(0,0,0,.16);transition:transform .2s ease,background .2s ease}
.app-button:hover{transform:translateY(-2px);background:var(--blue-dark)}
.app-card--register .app-button{background:var(--red)}
.app-card--register .app-button:hover{background:#d93d40}
.app-message{padding:14px 16px;margin-bottom:22px;border-radius:14px;font-size:14px;font-weight:700;line-height:1.5}
.app-message--error{color:#b42326;background:rgba(242,72,75,.10);border:1px solid rgba(242,72,75,.20)}
.app-message--success{color:#166534;background:rgba(34,197,94,.10);border:1px solid rgba(34,197,94,.20)}
.app-footer{margin-top:22px;text-align:center;color:var(--gray);font-size:14px}
.app-footer a{text-decoration:none;font-weight:900;color:var(--blue)}
.app-back{display:block;margin-top:14px;text-align:center;color:var(--gray);text-decoration:none;font-size:14px;font-weight:700}
.app-back:hover{color:var(--blue)}
.app-profile-head{padding-bottom:22px;margin-bottom:4px;border-bottom:1px solid var(--border)}
.app-profile-username{margin-top:8px;color:var(--blue);font-weight:900}
.app-profile-row{padding:18px 0;border-bottom:1px solid var(--border);line-height:1.65;overflow-wrap:anywhere}
.app-profile-row strong{display:block;margin-bottom:5px;color:var(--gray);font-size:12px;font-weight:900;text-transform:uppercase;letter-spacing:.5px}
.app-actions{display:flex;gap:12px;margin-top:26px}
.app-link-button{flex:1;display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:13px 20px;border-radius:999px;background:var(--dark);color:#fff;text-decoration:none;font-weight:900;box-shadow:0 14px 28px rgba(0,0,0,.14)}
.app-link-button--red{background:var(--red)}

@media(max-width:1150px){.hero-layout{grid-template-columns:1fr;max-width:760px}.center-logo{min-height:auto;margin-bottom:8px}.center-logo img{max-width:240px}.project-card{min-height:auto}}
@media(max-width:760px){.hero{padding:24px 16px 50px}.top-nav{justify-content:center;flex-wrap:wrap;gap:16px;margin-bottom:36px}.top-nav a{font-size:14px}.center-logo img{max-width:210px}.project-card{padding:28px;border-radius:30px}.social-top{top:24px;right:24px}.section{padding:65px 20px}.app-page{padding:22px 14px;align-items:flex-start}.app-shell{margin:auto 0}.app-logo img{width:155px}.app-card{padding:26px 20px;border-radius:24px}.app-form-grid{grid-template-columns:1fr;gap:0}.app-field--full{grid-column:auto}.app-actions{flex-direction:column}}

/* Language switcher */
.app-language-switcher {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin: 0 0 14px;
}
.app-language-switcher a {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 7px 10px;
    border: 1px solid rgba(0,0,0,.12);
    border-radius: 999px;
    background: #fff;
    color: inherit;
    text-decoration: none;
    font-size: 12px;
    font-weight: 800;
}

.app-language-switcher img {
    width: 25px;
    height: 17px;
    display: block;
    object-fit: cover;
    border-radius: 3px;
    box-shadow: 0 1px 4px rgba(0,0,0,.16);
}
.app-language-switcher a.active {
    border-color: currentColor;
    box-shadow: inset 0 0 0 1px currentColor;
}

/* =========================================================
   GROUND ZERO STUDIO — APP / AUTH / PROFILE SYSTEM
   Visual language shared with Ground Zero Studio microsite.
   ========================================================= */
:root{
    --gz-ink:#0a0a0c;
    --gz-ink-2:#141417;
    --gz-paper:#e8e5dd;
    --gz-paper-2:#f3f0e8;
    --gz-red:#ff3b3f;
    --gz-muted:#6d6a63;
    --gz-line:rgba(10,10,12,.18);
}
.app-page{
    position:relative;isolation:isolate;overflow:hidden;min-height:100vh;padding:34px 16px;
    display:flex;align-items:center;justify-content:center;color:var(--gz-ink);
    background-color:var(--gz-paper);
    background-image:
        linear-gradient(rgba(10,10,12,.10) 1px,transparent 1px),
        linear-gradient(90deg,rgba(10,10,12,.10) 1px,transparent 1px);
    background-size:34px 34px;
}
.app-page::after{
    content:"";position:fixed;z-index:-1;width:430px;height:430px;right:-130px;top:85px;
    border:82px solid var(--gz-red);border-radius:50%;pointer-events:none;
}
.app-shell{position:relative;z-index:2;width:100%;max-width:860px}
.app-shell--narrow{max-width:540px}
.app-logo{margin:0 0 14px;text-align:left}
.app-logo a{
    width:fit-content;min-height:54px;padding:8px 12px;display:flex;align-items:center;
    background:#fff;border:1px solid var(--gz-ink);box-shadow:7px 7px 0 rgba(10,10,12,.10);
}
.app-logo img{width:130px;max-width:48vw;filter:none}
.app-logo::after{
    content:"GROUND ZERO / KT.SPACE";display:block;width:fit-content;margin-top:12px;
    color:var(--gz-ink);font:1000 10px/1 ui-monospace,SFMono-Regular,Menlo,monospace;
    letter-spacing:1.1px;text-transform:uppercase;
}
.app-card{
    position:relative;width:100%;padding:32px;background:var(--gz-paper-2);
    border:1px solid var(--gz-ink);border-top:1px solid var(--gz-ink);border-radius:0;
    box-shadow:12px 12px 0 rgba(10,10,12,.11);
}
.app-card::before{
    content:"";position:absolute;left:-1px;top:-1px;width:82px;height:6px;background:var(--gz-red);
}
.app-card--register,.app-card--profile{border-top-color:var(--gz-ink)}
.app-title{
    margin:0 0 10px;color:var(--gz-ink);font-size:clamp(36px,6vw,60px);
    line-height:.92;letter-spacing:-.055em;text-transform:uppercase;font-weight:1000;
}
.app-subtitle{margin:0 0 28px;color:var(--gz-muted);line-height:1.65;font-size:15px}
.app-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;border:1px solid var(--gz-ink);margin-bottom:18px}
.app-form-grid .app-field{margin:0;padding:15px;border-right:1px solid var(--gz-ink);border-bottom:1px solid var(--gz-ink)}
.app-form-grid .app-field:nth-child(even){border-right:0}
.app-form-grid .app-field:nth-last-child(-n+2){border-bottom:0}
.app-form-grid .app-field--full{grid-column:1/-1;border-right:0}
.app-field{margin-bottom:18px}
.app-label{
    display:block;margin-bottom:8px;color:var(--gz-ink);
    font:1000 9px/1 ui-monospace,SFMono-Regular,Menlo,monospace;
    letter-spacing:.75px;text-transform:uppercase;
}
.app-input,.app-textarea{
    width:100%;display:block;padding:13px 14px;border:1px solid var(--gz-ink);border-radius:0;
    background:#fff;color:var(--gz-ink);font:inherit;font-size:15px;outline:none;
    transition:box-shadow .15s ease,border-color .15s ease;
}
.app-textarea{min-height:130px;resize:vertical}
.app-input:focus,.app-textarea:focus{border-color:var(--gz-red);box-shadow:0 0 0 3px rgba(255,59,63,.16)}
.app-button{
    width:100%;min-height:48px;border:1px solid var(--gz-ink);border-radius:0;padding:0 20px;
    background:var(--gz-ink);color:#fff;font:1000 11px/1 ui-monospace,SFMono-Regular,Menlo,monospace;
    letter-spacing:.7px;text-transform:uppercase;cursor:pointer;box-shadow:none;transition:.15s ease;
}
.app-button:hover,.app-card--register .app-button:hover{transform:none;background:var(--gz-red);border-color:var(--gz-red)}
.app-card--register .app-button{background:var(--gz-ink)}
.app-message{padding:13px 15px;margin-bottom:20px;border-radius:0;font-size:13px;font-weight:800;line-height:1.5}
.app-message--error{color:#8f191c;background:#fff1ef;border:1px solid var(--gz-red)}
.app-message--success{color:#145d3a;background:#edf8f1;border:1px solid #78af8f}
.app-footer{margin-top:20px;text-align:left;color:var(--gz-muted);font-size:13px}
.app-footer a{color:var(--gz-ink);text-decoration:underline;text-underline-offset:3px;font-weight:1000}
.app-back{
    display:inline-block;margin-top:14px;color:var(--gz-ink);text-decoration:none;
    font:900 10px/1.3 ui-monospace,SFMono-Regular,Menlo,monospace;text-transform:uppercase;
    border-bottom:1px solid var(--gz-ink);padding-bottom:3px;
}
.app-back:hover{color:var(--gz-red);border-color:var(--gz-red)}
.app-profile-head{padding-bottom:20px;margin-bottom:0;border-bottom:1px solid var(--gz-ink)}
.app-profile-username{margin-top:8px;color:var(--gz-red);font-weight:1000}
.app-profile-row{padding:17px 0;border-bottom:1px solid var(--gz-ink);line-height:1.65;overflow-wrap:anywhere}
.app-profile-row strong{
    display:block;margin-bottom:6px;color:var(--gz-muted);
    font:1000 9px/1 ui-monospace,SFMono-Regular,Menlo,monospace;
    text-transform:uppercase;letter-spacing:.65px;
}
.app-actions{display:flex;gap:1px;margin-top:24px;background:var(--gz-ink);border:1px solid var(--gz-ink)}
.app-link-button{
    flex:1;display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:13px 18px;
    border-radius:0;background:#fff;color:var(--gz-ink);text-decoration:none;
    font:1000 10px/1 ui-monospace,SFMono-Regular,Menlo,monospace;text-transform:uppercase;
    box-shadow:none;
}
.app-link-button:hover{background:var(--gz-ink);color:#fff}
.app-link-button--red{background:var(--gz-red);color:#fff}
.app-language-switcher{display:flex;justify-content:flex-start;gap:5px;margin:0 0 14px}
.app-language-switcher a{
    min-height:34px;padding:0 9px;display:inline-flex;align-items:center;gap:5px;
    border:1px solid var(--gz-ink);border-radius:0;background:rgba(232,229,221,.90);
    color:var(--gz-ink);text-decoration:none;
    font:900 10px/1 ui-monospace,SFMono-Regular,Menlo,monospace;
}
.app-language-switcher img{width:23px;height:15px;display:block;object-fit:cover;border-radius:0;box-shadow:none}
.app-language-switcher a.active,.app-language-switcher a:hover{background:var(--gz-ink);color:#fff;box-shadow:none}

@media(max-width:760px){
    .app-page{padding:20px 12px;align-items:flex-start}
    .app-page::after{width:290px;height:290px;right:-155px;top:115px;border-width:55px}
    .app-shell{margin:auto 0}
    .app-logo img{width:112px}
    .app-card{padding:24px 18px;box-shadow:8px 8px 0 rgba(10,10,12,.10)}
    .app-title{font-size:40px}
    .app-form-grid{grid-template-columns:1fr;border:0}
    .app-form-grid .app-field,
    .app-form-grid .app-field:nth-child(even),
    .app-form-grid .app-field:nth-last-child(-n+2),
    .app-form-grid .app-field--full{grid-column:auto;padding:0;margin-bottom:15px;border:0}
    .app-actions{flex-direction:column}
}