/* TOGAF10 Prep - Architecture Professional Theme */
:root{--bg:#0b1120;--surface:#1e293b;--surface-2:#334155;--primary:#38bdf8;--primary-dim:#0ea5e9;--accent:#a78bfa;--accent-2:#f472b6;--text:#f1f5f9;--text-dim:#94a3b8;--border:#334155;--success:#34d399;--warning:#fbbf24;--danger:#f87171;--shadow:0 25px 50px -12px rgba(0,0,0,.5);--radius:16px;--radius-sm:8px}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}

/* Background Effects */
body::before{content:'';position:fixed;inset:0;background:radial-gradient(ellipse 80% 50% at 50% -10%,rgba(56,189,248,.08),transparent),radial-gradient(ellipse 60% 40% at 80% 100%,rgba(167,139,250,.06),transparent);pointer-events:none;z-index:0}

/* Scrollbar */
::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:var(--surface-2);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--primary-dim)}

/* Layout */
.container{max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* Navigation */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(11,17,32,.8);backdrop-filter:blur(20px);border-bottom:1px solid rgba(51,65,85,.5);transition:all .3s}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:0 24px;height:64px;max-width:1200px;margin:0 auto}
.nav-brand{font-size:1.25rem;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-.5px}
.nav-links{display:flex;gap:4px}
.nav-link{padding:8px 16px;border-radius:var(--radius-sm);color:var(--text-dim);text-decoration:none;font-size:.875rem;font-weight:500;transition:all .2s;position:relative}
.nav-link:hover{color:var(--text);background:var(--surface)}
.nav-link::after{content:'';position:absolute;bottom:4px;left:50%;width:0;height:2px;background:var(--primary);border-radius:2px;transition:all .2s;transform:translateX(-50%)}
.nav-link:hover::after{width:60%}

/* Hero */
.hero{position:relative;padding:140px 0 80px;overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;left:-10%;width:60%;height:200%;background:radial-gradient(circle,rgba(56,189,248,.1),transparent 70%);animation:pulse 8s ease-in-out infinite}
.hero::after{content:'';position:absolute;bottom:-30%;right:-10%;width:50%;height:150%;background:radial-gradient(circle,rgba(167,139,250,.08),transparent 70%);animation:pulse 8s ease-in-out infinite 4s}
@keyframes pulse{0%,100%{opacity:.5}50%{opacity:1}}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 20px;background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.2);border-radius:100px;font-size:.875rem;color:var(--primary);margin-bottom:24px;backdrop-filter:blur(10px)}
.hero-badge .dot{width:8px;height:8px;background:var(--primary);border-radius:50%;animation:blink 2s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}
.hero h1{font-size:3.5rem;font-weight:800;line-height:1.1;margin-bottom:20px;letter-spacing:-1.5px;background:linear-gradient(135deg,var(--text) 0%,var(--primary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero-sub{font-size:1.25rem;color:var(--text-dim);max-width:600px;margin-bottom:32px}
.hero-inner{display:flex;gap:48px;align-items:flex-start}
.hero-left{flex:1}
.hero-right{width:380px;flex-shrink:0}
.hero-stats{display:flex;gap:40px;margin-top:40px}
.stat-item{text-align:center}
.stat-value{font-size:2.5rem;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.stat-label{font-size:.875rem;color:var(--text-dim);margin-top:4px}

/* Stats Panel */
.stats-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.stats-header{padding:16px 20px;background:rgba(56,189,248,.08);border-bottom:1px solid var(--border)}
.stats-header-title{font-size:.875rem;font-weight:600;color:var(--primary);letter-spacing:1px}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--border)}
.stat-card{padding:16px 18px;background:var(--surface);display:flex;flex-direction:column;gap:6px}
.stat-card.total{grid-column:span 2;background:linear-gradient(135deg,rgba(56,189,248,.15),rgba(167,139,250,.15));text-align:center;align-items:center}
.stat-card-name{font-size:.75rem;color:var(--text-dim);font-weight:500}
.stat-card-num{font-size:1.4rem;font-weight:800;color:var(--primary);line-height:1.2}
.stat-card-num.highlight{color:var(--warning)}
.stat-card-num.total{color:#fff;font-size:1.8rem}
.stat-card-desc{font-size:.8rem;color:var(--text-dim);opacity:.7}
.stat-card.total .stat-card-desc{color:rgba(255,255,255,.7)}
.stats-footer{padding:10px 18px;text-align:right;font-size:.65rem;color:var(--text-dim);opacity:.6;border-top:1px solid var(--border);font-family:'JetBrains Mono',monospace}

/* Section */
.section{padding:80px 0;position:relative}
.section-header{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:48px}
.section-label{display:inline-flex;align-items:center;gap:8px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:2px;color:var(--primary);margin-bottom:12px}
.section-label::before{content:'';width:24px;height:2px;background:var(--primary);border-radius:2px}
.section h2{font-size:2.5rem;font-weight:700;letter-spacing:-1px}
.section-desc{color:var(--text-dim);margin-top:8px;max-width:500px}

/* Cards */
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:24px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:32px;position:relative;overflow:hidden;transition:all .3s;backdrop-filter:blur(10px)}
.card::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--primary),transparent);opacity:0;transition:opacity .3s}
.card:hover::before{opacity:1}
.card:hover{border-color:rgba(56,189,248,.3);transform:translateY(-4px);box-shadow:var(--shadow)}
.card-icon{width:48px;height:48px;border-radius:var(--radius-sm);background:linear-gradient(135deg,rgba(56,189,248,.2),rgba(167,139,250,.2));display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:20px}
.card h3{font-size:1.25rem;font-weight:600;margin-bottom:12px}
.card p,.card li{color:var(--text-dim);font-size:.9375rem}
.card ul{list-style:none;padding:0;margin-top:12px}
.card li{padding-left:20px;position:relative;margin:8px 0}
.card li::before{content:'›';position:absolute;left:0;color:var(--primary);font-weight:700}

/* Timeline */
.timeline{position:relative;padding-left:40px}
.timeline::before{content:'';position:absolute;left:15px;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--primary),var(--accent));border-radius:2px}
.timeline-item{position:relative;padding-bottom:40px}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{position:absolute;left:-33px;top:4px;width:16px;height:16px;border-radius:50%;background:var(--bg);border:3px solid var(--primary);box-shadow:0 0 0 4px rgba(56,189,248,.2)}
.timeline-content{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px}
.timeline-content h4{font-size:1.1rem;font-weight:600;margin-bottom:8px;color:var(--primary)}
.timeline-content p{color:var(--text-dim);font-size:.9375rem}

/* Steps */
.steps{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;margin:32px 0}
.step{flex:1;min-width:140px;max-width:180px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px 16px;text-align:center;position:relative;transition:all .3s}
.step:hover{border-color:var(--primary);transform:translateY(-2px)}
.step-num{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.875rem;margin:0 auto 12px}
.step-title{font-size:.875rem;font-weight:600}
.step-desc{font-size:.9rem;color:var(--text-dim);margin-top:4px}
.step-arrow{position:absolute;right:-20px;top:50%;transform:translateY(-50%);color:var(--primary);font-size:1.25rem;z-index:2}
@media(max-width:768px){.step-arrow{display:none}}

/* Tags */
.tag{display:inline-flex;align-items:center;padding:4px 12px;background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.2);border-radius:100px;font-size:.75rem;font-weight:500;color:var(--primary);margin:4px}

/* Info Box */
.info-box{background:linear-gradient(135deg,rgba(56,189,248,.08),rgba(167,139,250,.08));border:1px solid rgba(56,189,248,.2);border-radius:var(--radius);padding:24px;margin:24px 0;position:relative;overflow:hidden}
.info-box::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(to bottom,var(--primary),var(--accent))}
.info-box h4{color:var(--primary);margin-bottom:8px}

/* Warning Box */
.warn-box{background:linear-gradient(135deg,rgba(251,191,36,.08),rgba(244,114,182,.08));border:1px solid rgba(251,191,36,.2);border-radius:var(--radius);padding:24px;margin:24px 0;position:relative;overflow:hidden}
.warn-box::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(to bottom,var(--warning),var(--accent-2))}

/* Quiz */
.quiz-container{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:32px;max-width:700px;margin:0 auto}
.quiz-progress{height:4px;background:var(--surface-2);border-radius:4px;margin-bottom:24px;overflow:hidden}
.quiz-progress-bar{height:100%;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:4px;transition:width .3s;width:0%}
.quiz-question{font-size:1.25rem;font-weight:600;margin-bottom:24px;line-height:1.5}
.quiz-options{display:flex;flex-direction:column;gap:12px}
.quiz-option{padding:16px 20px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:12px}
.quiz-option:hover{border-color:var(--primary);background:rgba(56,189,248,.05)}
.quiz-option.selected{border-color:var(--primary);background:rgba(56,189,248,.1)}
.quiz-option.correct{border-color:var(--success);background:rgba(52,211,153,.1)}
.quiz-option.wrong{border-color:var(--danger);background:rgba(248,113,113,.1)}
.quiz-option-letter{width:32px;height:32px;border-radius:50%;background:var(--surface-2);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.875rem;flex-shrink:0}
.quiz-option.selected .quiz-option-letter{background:var(--primary);color:var(--bg)}
.quiz-option.correct .quiz-option-letter{background:var(--success);color:var(--bg)}
.quiz-option.wrong .quiz-option-letter{background:var(--danger);color:var(--bg)}
.quiz-btn{width:100%;padding:16px;background:linear-gradient(135deg,var(--primary),var(--accent));border:none;border-radius:var(--radius-sm);color:var(--bg);font-size:1rem;font-weight:700;cursor:pointer;transition:all .2s;margin-top:24px}
.quiz-btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px -10px rgba(56,189,248,.5)}
.quiz-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.quiz-feedback{margin-top:20px;padding:16px;border-radius:var(--radius-sm);font-size:.9375rem;display:none}
.quiz-feedback.show{display:block}
.quiz-feedback.correct{background:rgba(52,211,153,.1);border:1px solid var(--success);color:var(--success)}
.quiz-feedback.wrong{background:rgba(248,113,113,.1);border:1px solid var(--danger);color:var(--danger)}

/* Table */
.data-table{width:100%;border-collapse:collapse;margin:24px 0;font-size:.9375rem}
.data-table th{padding:16px;text-align:left;font-weight:600;color:var(--text);border-bottom:2px solid var(--border);background:var(--surface)}
.data-table td{padding:16px;color:var(--text-dim);border-bottom:1px solid var(--border)}
.data-table tr:hover td{background:rgba(56,189,248,.03)}

/* Footer */
.footer{text-align:center;padding:60px 0 40px;border-top:1px solid var(--border);margin-top:60px}
.footer-brand{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:12px}
.footer p{color:var(--text-dim);font-size:.875rem}
.footer-links{display:flex;justify-content:center;gap:24px;margin-top:24px}
.footer-links a{color:var(--text-dim);text-decoration:none;font-size:.875rem;transition:color .2s}
.footer-links a:hover{color:var(--primary)}

/* Animations */
.fade-in{opacity:0;transform:translateY(30px);animation:fadeIn .8s ease forwards}
@keyframes fadeIn{to{opacity:1;transform:translateY(0)}}
.delay-1{animation-delay:.1s}.delay-2{animation-delay:.2s}.delay-3{animation-delay:.3s}.delay-4{animation-delay:.4s}.delay-5{animation-delay:.5s}

/* Responsive */
@media(max-width:768px){.hero h1{font-size:2.5rem}.hero-stats{flex-wrap:wrap;gap:20px}.hero-inner{flex-direction:column}.hero-right{width:100%}.stats-panel{margin-top:32px}.card-grid{grid-template-columns:1fr}.section h2{font-size:1.75rem}.nav-links{display:none}.steps{flex-direction:column;align-items:center}.step{max-width:100%;width:100%}}

/* Selection */
::selection{background:rgba(56,189,248,.3);color:var(--text)}

/* Focus */
a:focus,button:focus{outline:2px solid var(--primary);outline-offset:2px;border-radius:var(--radius-sm)}

/* Print */
@media print{body{background:#fff;color:#000}.nav,.hero-stats,.quiz-container,.footer{display:none}.card{background:#f5f5f5;border:1px solid #ddd}}