/* Developer: Hamdy Abou El Anein | Contact: info@software-coders.ch | SPDX-License-Identifier: GPL-3.0-only */
:root{--bg:#080f1d;--bg2:#0e192b;--surface:#131f32;--surface2:#18263c;--text:#f2f5fc;--muted:#a8b4ca;--accent:#70e0ba;--accent2:#a4f5d7;--line:#2d3b51;color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",sans-serif;font-size:16px;line-height:1.65;color:var(--text);background:var(--bg)}a{color:inherit}button,input,select,textarea{font:inherit}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.container{max-width:1210px;margin:auto;padding:0 26px}.skip{position:absolute;left:-9999px;top:0}.skip:focus{left:10px;top:10px;z-index:999;background:white;color:#111;padding:12px}
.site-header{position:sticky;top:0;z-index:50;background:#091120f5;border-bottom:1px solid #ffffff13;backdrop-filter:blur(16px)}.nav{display:flex;align-items:center;gap:26px;min-height:83px}.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;font-size:21px;letter-spacing:-.7px;font-weight:850;white-space:nowrap}.brand-icon{width:41px;height:41px;display:grid;place-items:center;background:var(--accent);color:#0b1823;border-radius:11px;font-size:16px;letter-spacing:-1px}.brand-icon span,.brand-accent{color:var(--accent)}.brand-icon span{color:#167258}.brand small{font-size:14px;color:#cbd6e4}.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}.nav-links a{text-decoration:none;color:#c8d2e3;font-size:13px;font-weight:600}.nav-links a:hover{color:var(--accent)}.nav-cta{background:var(--accent);color:#0a1b22;text-decoration:none;padding:11px 17px;border-radius:9px;font-size:13px;font-weight:800;white-space:nowrap}.menu-toggle{display:none}
.hero{position:relative;overflow:hidden;background:radial-gradient(ellipse at 80% 35%,#143c48 0,#10223b 34%,#080f1d 76%)}.hero-glow{position:absolute;right:7%;top:20%;width:460px;height:460px;background:#3de1ab18;filter:blur(90px);pointer-events:none}.hero-grid{position:relative;display:grid;grid-template-columns:1.12fr .88fr;align-items:center;gap:38px;padding-top:95px;padding-bottom:100px;min-height:675px}.eyebrow{color:var(--accent);font-size:12px;letter-spacing:2.2px;font-weight:850;margin:0 0 17px}.dot{display:inline-block;width:8px;height:8px;background:var(--accent);border-radius:50%;margin-right:9px;box-shadow:0 0 15px #70e0ba99}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(48px,5.8vw,79px);letter-spacing:-3.5px;line-height:1.08;margin:0 0 27px;font-weight:850}h1 em,h2 em{font-style:normal;color:var(--accent)}.hero-lead{font-size:19px;line-height:1.8;color:#b8c5d7;max-width:610px}.hero-lead strong{color:#f5f8fd}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}.button{border:0;display:inline-flex;align-items:center;justify-content:center;gap:12px;padding:14px 23px;min-height:51px;border-radius:9px;font-weight:800;text-decoration:none;cursor:pointer;font-size:14px}.button.primary{background:var(--accent);color:#0a1b22}.button.primary:hover,.nav-cta:hover{background:var(--accent2)}.button.ghost{background:transparent;border:1px solid #60758a;color:#e8f1f8}.hero-trust{display:flex;gap:35px;flex-wrap:wrap;margin-top:52px}.hero-trust strong{font-size:27px;display:block;color:#f7fbff}.hero-trust span{font-size:12px;color:var(--muted);display:block;max-width:145px}.hero-visual{position:relative}.hero-visual>img{width:100%;height:450px;object-fit:cover;border-radius:25px;border:1px solid #5a7b8844;box-shadow:0 28px 90px #0008}.code-card{position:absolute;bottom:-27px;left:-42px;background:#0c1725ed;border:1px solid #54768a;border-radius:13px;padding:17px 23px;box-shadow:0 25px 60px #0009}.code-dots{color:#eeaf87;display:block;letter-spacing:5px;font-size:11px;margin-bottom:11px}.code-card code{font:13px/1.8 ui-monospace,SFMono-Regular,Consolas,monospace;color:#dbece7}.code-green{color:var(--accent)}.code-purple{color:#bfacff}
.intro-band{border-top:1px solid #ffffff16;border-bottom:1px solid #ffffff16;background:#0c1829;padding:23px 0}.intro-band .container{display:flex;align-items:center;gap:60px;flex-wrap:wrap}.intro-band span{font-size:10px;letter-spacing:1.8px;color:var(--muted);font-weight:800}.intro-band div div{font-size:15px;font-weight:750}.intro-band b{color:var(--accent);padding:0 13px}
.section{padding:95px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:35px;margin-bottom:37px}.section-head>div{max-width:680px}.section-head h2,.center-head h2,.method-grid h2,.contact-grid h2{font-size:clamp(34px,4vw,53px);line-height:1.17;letter-spacing:-2px;margin:0 0 18px}.section-head p:not(.eyebrow),.center-head p:not(.eyebrow),.section-lead{color:var(--muted);font-size:17px}.inline-link{font-size:13px;font-weight:800;color:var(--accent);text-decoration:none;white-space:nowrap;margin-bottom:18px}.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.course{border:1px solid var(--line);background:linear-gradient(145deg,#142237,#0e1929);padding:28px;border-radius:15px;min-width:0;transition:border-color .2s,transform .2s}.course:hover{border-color:#61d6b3;transform:translateY(-3px)}.course-icon{width:53px;height:53px;display:grid;place-items:center;border-radius:12px;background:#2a4965;color:#a7e7ff;font-weight:900;font-size:21px;margin-bottom:24px}.course-icon.linux{background:#344333;color:#d4ee9b}.course-icon.bash{background:#303b56;color:#b8caff}.course-icon.go{background:#17465a;color:#84d9ef}.course-icon.cyber{background:#453b36;color:#ffd08e}.course-icon.julia{background:#3a3152;color:#d5baff}.course-type{font-size:10px;color:var(--accent);font-weight:850;letter-spacing:1.6px}.course h3{font-size:25px;margin:10px 0}.course p{color:var(--muted);min-height:85px;font-size:14px}.course-footer{display:flex;justify-content:space-between;gap:10px;align-items:center;border-top:1px solid var(--line);padding-top:19px;margin-top:17px}.course-footer span{font-size:12px;color:var(--muted)}.course-footer a{font-size:13px;color:var(--accent);font-weight:750;text-decoration:none;white-space:nowrap}
.method-section{background:#0d192b}.method-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:90px;align-items:center}.method-image{position:relative}.method-image img{width:100%;height:530px;object-fit:cover;border-radius:19px}.method-sticker{position:absolute;right:-22px;bottom:26px;background:var(--accent);color:#10212a;padding:22px;border-radius:12px;font-size:15px;box-shadow:0 12px 35px #0007}.method-sticker strong{font-size:23px}.steps{margin:31px 0}.steps>div{display:flex;gap:19px;margin-bottom:22px}.steps>div>span{font-size:14px;color:var(--accent);font-weight:900;padding-top:3px}.steps h3{font-size:17px;margin:0 0 4px}.steps p{color:var(--muted);font-size:14px;margin:0}
.pricing-section{background:radial-gradient(circle at 50% 55%,#123a3b,#080f1d 60%)}.center-head{text-align:center;max-width:720px;margin:0 auto 42px}.pricing-card{max-width:510px;margin:auto;padding:38px;background:#152438;border:1px solid #5cbfa777;border-radius:19px;box-shadow:0 22px 80px #0005}.pricing-top{display:flex;justify-content:space-between;align-items:center;gap:10px;color:var(--muted);font-size:11px;font-weight:850;letter-spacing:1px}.pricing-label{color:#0a2820;background:var(--accent);border-radius:30px;padding:5px 10px;font-size:10px}.price{margin:26px 0 18px}.price strong{font-size:60px;letter-spacing:-2px;line-height:1}.price span{color:var(--muted)}.pricing-card>p{color:var(--muted)}.pricing-card ul{padding:0;margin:28px 0;list-style:none}.pricing-card li{margin:13px 0;color:#d7e4ee}.pricing-card li:before{content:"✓";color:var(--accent);margin-right:12px}.wide{width:100%}.small-note{font-size:12px!important;color:var(--muted);text-align:center;margin:15px 0}.small-note a{color:var(--accent)}.stripe-box{text-align:center;min-height:58px;overflow:hidden}
.services-section{background:#0c1829}.service-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.service-grid article{background:#132136;border:1px solid var(--line);padding:32px;border-radius:15px;display:flex;flex-direction:column}.service-number{font-size:11px;color:var(--accent);font-weight:850;letter-spacing:1.4px}.service-grid h3{font-size:23px;margin:20px 0 10px}.service-grid p{color:var(--muted);font-size:14px;flex:1}.service-grid strong{font-size:18px;margin:14px 0}.service-grid a{font-size:13px;font-weight:800;color:var(--accent);text-decoration:none}
.contact-section{background:radial-gradient(circle at 20% 40%,#163846,#091425 62%)}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:75px;align-items:start}.contact-details{display:grid;gap:18px;margin:40px 0}.contact-details a{display:flex;gap:17px;align-items:center;text-decoration:none}.contact-details a>span{width:49px;height:49px;border:1px solid #557485;background:#152d3a;display:grid;place-items:center;border-radius:12px;color:var(--accent);font-size:23px}.contact-details small{display:block;color:var(--muted);font-size:10px;letter-spacing:1.5px}.contact-details strong{display:block;font-size:17px}.founder{border-top:1px solid var(--line);padding-top:23px}.founder strong,.founder span{display:block}.founder span{color:var(--muted);font-size:13px}.contact-form-card{background:#142337;border:1px solid #456075;padding:36px;border-radius:18px}.contact-form-card h3{font-size:25px;margin-bottom:4px}.contact-form-card>p{color:var(--muted);font-size:14px}.contact-form-card form{display:grid;gap:11px;margin-top:24px}.contact-form-card label{font-size:13px;font-weight:750}.contact-form-card input,.contact-form-card textarea,.contact-form-card select{background:#0b1728;border:1px solid #41546a;border-radius:8px;padding:13px 15px;color:#fff;min-width:0;width:100%;margin-bottom:10px}.contact-form-card textarea{resize:vertical}.contact-form-card .button{margin-top:5px}
.footer{background:#070d18;padding:60px 0 45px;border-top:1px solid var(--line)}.footer-grid{display:grid;grid-template-columns:1.4fr .7fr 1fr;gap:50px}.footer p,.footer small{color:var(--muted);font-size:13px}.footer h3{font-size:15px}.footer-grid>div:nth-child(n+2){display:flex;flex-direction:column;gap:9px}.footer-grid a{text-decoration:none}.footer-grid>div:nth-child(2) a,.footer-grid>div:nth-child(3) a{font-size:13px;color:var(--accent)}
@media(max-width:1060px){.nav{flex-wrap:wrap}.nav-links{gap:14px}.nav-cta{display:none}.hero-grid{gap:20px}.method-grid{gap:40px}}
@media(max-width:820px){.menu-toggle{display:flex;margin-left:auto;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:10px}.menu-toggle span{height:2px;width:100%;background:#fff}.nav-links{display:none;width:100%;order:3;flex-direction:column;align-items:stretch;padding:12px 0 20px}.nav-links.open{display:flex}.nav-links a{padding:8px}.hero-grid{grid-template-columns:1fr;padding-top:65px;padding-bottom:85px}.hero-visual{max-width:630px}.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.method-grid,.contact-grid{grid-template-columns:1fr}.method-image{max-width:600px}.footer-grid{grid-template-columns:1fr 1fr}.section{padding:75px 0}}
@media(max-width:570px){.container{padding:0 18px}.hero-grid{padding-top:48px}.hero-visual>img{height:310px}.code-card{left:8px;bottom:-35px;padding:12px}.hero-trust{gap:18px}.hero-trust strong{font-size:22px}.intro-band .container{gap:10px}.intro-band b{padding:0 5px}.section{padding:58px 0}.section-head{display:block}.course-grid,.service-grid,.footer-grid{grid-template-columns:1fr}.course p{min-height:0}.method-image img{height:360px}.method-sticker{right:8px}.pricing-card,.contact-form-card{padding:24px}.pricing-top{flex-wrap:wrap}.price strong{font-size:49px}.contact-details strong{font-size:14px}.contact-grid{gap:35px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.course{transition:none}}

.contact-qr{display:flex;align-items:center;gap:15px;margin:20px 0}.contact-qr img{width:88px;height:88px;object-fit:contain;background:#fff;border-radius:9px;padding:5px}.contact-qr span{font-size:12px;color:var(--muted)}.service-tiers{font-size:12px!important;color:#c5d5df!important}

/* 2026 visual refinement: clean content rhythm and a nonintrusive chat. */
.hero-grid{grid-template-columns:1.2fr .8fr;gap:58px}
.hero h1{font-size:clamp(45px,5.3vw,70px);letter-spacing:-2.5px}
.hero-visual>img{height:380px;object-position:center}
.hero-grid{min-height:590px;padding-top:75px;padding-bottom:75px}
.hero-trust{margin-top:36px}
.section{padding-top:76px;padding-bottom:76px}
.method-image{min-height:410px;display:flex;align-items:center}
.terminal-art{width:100%;min-height:380px;background:#081322;border:1px solid #40586c;border-radius:17px;box-shadow:0 30px 75px #0006;overflow:hidden}
.terminal-bar{display:flex;align-items:center;gap:25px;background:#1d3044;border-bottom:1px solid #3e5668;padding:13px 20px;font:12px ui-monospace,monospace;color:#b8c7d4}
.terminal-bar .dots{color:#f4aa80;letter-spacing:5px}
.terminal-content{padding:27px;font:15px/1.8 ui-monospace,Consolas,monospace;color:#e5f0f4}
.terminal-content p{margin:0 0 13px}.terminal-content .terminal-result{padding-left:20px;color:#a8c7d0}
.term-green{color:#70e0ba}.term-blue{color:#a7a3ff}.cursor{color:#70e0ba}
.method-sticker{bottom:-18px;right:-8px}
.pricing-card{max-width:560px}
.stripe-caption{font-size:13px;color:#c3d5df;text-align:center;margin:0 0 8px}
.stripe-box{min-height:0;margin:18px 0 5px}
.contact-section{background:linear-gradient(125deg,#0d2933,#091425 65%)}
#chatbot-container{z-index:100;max-width:calc(100vw - 28px);background:#12243a!important;border:1px solid #446177;border-radius:15px!important;box-shadow:0 20px 60px #0009!important;color:#edf5fa}
#chatbot-header{background:#214457!important;color:#edf5fa!important}
#chatbot-messages{background:#12243a}
#chatbot-input-container{background:#12243a!important}
#chatbot-input{background:#0b1728!important;color:white!important;border-color:#516d80!important}
#chatbot-closed{z-index:100;background:#70e0ba!important;color:#0a2022!important;border:0;border-radius:28px!important;padding:13px 21px!important;box-shadow:0 10px 30px #0007;font-weight:800}
#chatbot-send{background:#70e0ba!important;color:#0a2022!important}
@media(max-width:820px){.hero-grid{grid-template-columns:1fr;gap:30px}.method-image{min-height:340px}}
@media(max-width:570px){.hero h1{font-size:clamp(42px,11vw,58px)}.hero-visual>img{height:280px}.code-card{position:relative;left:auto;bottom:auto;margin:-30px 12px 0;width:max-content;max-width:calc(100% - 24px)}.terminal-art{min-height:330px}.terminal-content{font-size:12px;padding:20px}.method-sticker{position:relative;right:auto;bottom:auto;margin:-22px 12px 0;width:max-content;max-width:calc(100% - 24px)}#chatbot-container{right:12px;bottom:12px;width:calc(100vw - 24px)}}
.method-image{display:block;position:relative;min-width:0;min-height:0}.terminal-art{width:100%;min-width:0}.terminal-bar{overflow-wrap:anywhere}.terminal-content{overflow-wrap:anywhere}.method-sticker{position:absolute}
@media(max-width:570px){.method-sticker{position:relative;display:block}.terminal-art{min-height:0}}

.course-icon.rust{background:#49392e;color:#ffc38e}
#chatbot-send:disabled{opacity:.55;cursor:wait}
.chatbot-message.bot{white-space:pre-wrap;overflow-wrap:anywhere}

/* Linux Incident Arena — Developer: Hamdy Abou El Anein | Contact: info@software-coders.ch */
.arena-hero{background:radial-gradient(ellipse at 80% 0,#133c3b 0,#0c1a2c 35%,#080f1d 68%)}.arena-intro{display:grid;grid-template-columns:1fr 275px;gap:75px;padding:65px 0 45px;align-items:center}.arena-intro h1{font-size:clamp(45px,5.6vw,72px);letter-spacing:-3px;line-height:1.08;margin-bottom:20px}.arena-lead{font-size:17px;line-height:1.8;max-width:660px;color:#b7c8d9}.arena-lead strong{font-weight:500;color:#e1edf4}.arena-intro .hero-actions{margin-top:24px;gap:12px}.arena-promises{display:flex;gap:20px;flex-wrap:wrap;color:#9bb3bf;font-size:11px;margin-top:19px}.arena-promises span:before{content:"✓";margin-right:6px;color:var(--accent)}.expert-note{padding:0 0 0 28px;border-left:1px solid #395a62}.expert-symbol{display:grid;place-items:center;background:#133e37;color:var(--accent);border:1px solid #38685a;border-radius:12px;width:48px;height:48px;font:23px ui-monospace,monospace;margin-bottom:17px}.expert-note>p{font-size:9px;font-weight:750;letter-spacing:1.7px;color:#91aaaf;margin-bottom:9px}.expert-note h2{font-size:27px;letter-spacing:-.8px;line-height:1.2;margin:0 0 12px}.expert-note h2 span{color:var(--accent)}.expert-note>div{font-size:11px;color:#adc1cb;line-height:1.9}.expert-note>a{display:block;font-size:10px;font-weight:650;color:var(--accent);text-decoration:none;margin-top:16px}.expert-note>.expert-contact{font-weight:400;color:#bad1d3;margin-top:10px}.lab-caption{display:flex;justify-content:space-between;align-items:center;gap:12px;color:#99b0c3;font-size:11px;margin-bottom:13px;scroll-margin-top:100px}.lab-caption>div{display:flex;align-items:center;gap:12px}.lab-badge{font-size:9px;letter-spacing:1.3px;font-weight:850;color:var(--accent);border:1px solid #3c6e60;background:#183c322e;padding:4px 8px;border-radius:4px}.lab-caption>span{font:10px ui-monospace,monospace;color:#86a2b4}.arena-frame{width:100%;height:720px;display:block;border:0;border-radius:14px;box-shadow:0 28px 80px #0005;background:#0a1321}.lab-after{display:flex;justify-content:space-between;align-items:start;gap:55px;padding:21px 0 35px}.lab-after p{font-size:11px;color:#94adbd;max-width:590px;margin:0;line-height:1.8}.lab-after strong{color:#d9e8ef}.lab-after>a{font-size:11px;font-weight:650;color:var(--accent);text-decoration:none;max-width:290px;text-align:right}.mentor-band{padding:49px 0;background:#0e1d2b;border-top:1px solid #28404a;border-bottom:1px solid #26394a}.mentor-band>.container{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.mentor-band .eyebrow{font-size:9px;letter-spacing:1.5px}.mentor-band h2{font-size:32px;letter-spacing:-1px;line-height:1.3;margin:12px 0 0}.mentor-band h2 em{color:var(--accent);font-style:normal}.mentor-band p{font-size:14px;color:#afc1d0;margin-bottom:15px}.mentor-band .inline-link{font-size:12px;white-space:normal}.nav-links{gap:19px}.nav-cta{padding:10px 13px;font-size:11px}
@media(max-width:1060px){.arena-intro{gap:30px;grid-template-columns:1fr 245px}.nav-links{gap:15px}}
@media(max-width:820px){.arena-intro{padding-top:42px;gap:30px;grid-template-columns:1fr}.expert-note{display:grid;grid-template-columns:48px 1fr;column-gap:14px;align-items:center;border-left:0;border-top:1px solid #304d57;padding:20px 0 0}.expert-symbol{grid-column:1;grid-row:1/4;margin:0}.expert-note>p{grid-column:2;margin:0}.expert-note h2{grid-column:2;margin:4px 0;font-size:23px}.expert-note h2 br{display:none}.expert-note>div{grid-column:2}.expert-note>a{grid-column:2;margin-top:9px}.expert-note>div br{display:none}.expert-note>div br:after{content:" · "}.expert-note .expert-contact{display:none}.lab-caption>span{display:none}.mentor-band>.container{gap:25px;grid-template-columns:1fr}.mentor-band h2{font-size:30px}.lab-after{gap:20px;flex-direction:column}.lab-after>a{text-align:left;max-width:none}}
@media(max-width:570px){.arena-intro{padding-top:35px;padding-bottom:27px}.arena-intro h1{font-size:clamp(41px,10.7vw,57px);letter-spacing:-1.8px}.arena-lead{font-size:15px}.arena-intro .hero-actions{gap:10px}.arena-intro .button{padding:12px 16px;font-size:12px;min-height:46px}.arena-promises{gap:8px 15px;font-size:10px}.expert-note h2{font-size:21px}.expert-note>div{font-size:10px}.lab-caption{font-size:10px;gap:8px}.lab-caption>div{gap:8px}.arena-frame{height:980px}.lab-after{padding-bottom:25px}.mentor-band{padding:35px 0}}

.course-detail-link{display:inline-block;margin:-2px 0 16px;color:var(--accent);font-size:13px;font-weight:750;text-decoration:none}.course-detail-link:hover{text-decoration:underline}.course-hero{background:radial-gradient(ellipse at 80% 25%,#163c46 0,#10223b 36%,#080f1d 78%);padding:82px 0 76px}.course-hero h1{max-width:900px;font-size:clamp(43px,6vw,70px)}.course-lead{max-width:760px;color:#bdcada;font-size:19px;line-height:1.8}.course-meta{margin:25px 0 0;color:#a9bbca;font-size:13px}.course-copy{max-width:880px}.course-copy h2,.course-contact h2{font-size:clamp(30px,4vw,43px);letter-spacing:-1.5px}.course-prose{max-width:760px;color:var(--muted);font-size:17px}.course-prose li{margin:9px 0}.course-contact{background:#102033}.course-contact p{max-width:720px;color:var(--muted)}.course-more{margin-top:30px}.course-more ul{display:flex;gap:22px;flex-wrap:wrap;padding-left:20px}.course-more a{color:var(--accent)}

/* Keep descriptive course links within small screens. */
.course-region-note .inline-link { white-space: normal; max-width: 100%; overflow-wrap: anywhere; }

.breadcrumbs{padding-top:24px;font-size:13px;display:flex;flex-wrap:wrap;gap:10px;color:var(--muted)}
.breadcrumbs a{color:var(--accent)}