/* NUMVEX CALCULATORS - Premium Design v6.0 */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');
:root{
  --primary:#6366f1;--primary-dark:#4f46e5;--primary-light:#818cf8;
  --primary-glow:rgba(99,102,241,0.35);--primary-bg:rgba(99,102,241,0.06);
  --accent-1:#f43f5e;--accent-2:#06b6d4;--accent-3:#10b981;--accent-4:#f59e0b;
  --accent-5:#8b5cf6;--accent-6:#ec4899;
  --surface:#ffffff;--surface-alt:#f8fafc;--surface-warm:#fffbf5;
  --border:#e2e8f0;--border-light:#f1f5f9;--border-focus:rgba(99,102,241,0.3);
  --text-dark:#0f172a;--text-heading:#1e293b;--text-body:#334155;--text-secondary:#64748b;--text-muted:#94a3b8;
  --radius-xs:6px;--radius-sm:10px;--radius-md:14px;--radius-lg:20px;--radius-xl:28px;--radius-full:9999px;
  --shadow-xs:0 1px 3px rgba(0,0,0,0.04);
  --shadow-sm:0 2px 8px rgba(0,0,0,0.05);--shadow-md:0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg:0 12px 48px rgba(0,0,0,0.12);--shadow-xl:0 20px 60px rgba(0,0,0,0.15);
  --shadow-glow:0 0 40px rgba(99,102,241,0.2);--shadow-glow-lg:0 0 80px rgba(99,102,241,0.25);
  --ease:cubic-bezier(0.4,0,0.2,1);--ease-bounce:cubic-bezier(0.34,1.56,0.64,1);
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --gradient-primary:linear-gradient(135deg,#6366f1 0%,#8b5cf6 50%,#a78bfa 100%);
  --gradient-warm:linear-gradient(135deg,#f43f5e 0%,#f97316 100%);
  --gradient-cool:linear-gradient(135deg,#06b6d4 0%,#3b82f6 100%);
  --gradient-fresh:linear-gradient(135deg,#10b981 0%,#06b6d4 100%);
  --gradient-hero:linear-gradient(135deg,#eef2ff 0%,#faf5ff 25%,#fff1f2 50%,#ecfeff 75%,#ecfdf5 100%);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
.skip-link{position:absolute;top:-100%;left:50%;transform:translateX(-50%);background:var(--gradient-primary);color:#fff;padding:0.75rem 1.5rem;border-radius:var(--radius-full);font-weight:700;font-size:0.85rem;z-index:9999;transition:top 0.3s var(--ease);text-decoration:none}
.skip-link:focus{top:1rem;color:#fff}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text-body);line-height:1.7;background:var(--surface);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{max-width:100%;display:block}
a{text-decoration:none;transition:color 0.25s var(--ease)}
ul{list-style:none}
button{cursor:pointer;font-family:inherit}
input,select,textarea{font-family:inherit}
h1,h2,h3,h4{font-weight:800;line-height:1.15;letter-spacing:-0.03em;color:var(--text-heading)}
h1{font-size:clamp(2.5rem,5vw,4.25rem)}
h2{font-size:clamp(1.8rem,3vw,2.5rem)}
h3{font-size:1.15rem;font-weight:700}
p{color:var(--text-secondary);margin-bottom:1rem}
.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}
.section{padding:5.5rem 0}

/* HEADER */
.header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,0.88);backdrop-filter:blur(28px) saturate(200%);-webkit-backdrop-filter:blur(28px) saturate(200%);border-bottom:1px solid rgba(0,0,0,0.05);padding:0.75rem 0;transition:box-shadow 0.3s var(--ease)}
.header.scrolled{box-shadow:0 4px 30px rgba(0,0,0,0.06)}
.header .container{display:flex;align-items:center;justify-content:space-between}
.logo{font-size:1.6rem;font-weight:900;color:var(--text-dark);letter-spacing:-0.04em;display:flex;align-items:center;gap:0.4rem}
.logo-icon{width:36px;height:36px;background:var(--gradient-primary);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:1rem;letter-spacing:0}
.logo span{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav{display:flex;align-items:center;gap:0.25rem}
.nav a{font-weight:500;color:var(--text-secondary);padding:0.5rem 1rem;border-radius:var(--radius-sm);position:relative;transition:all 0.25s var(--ease)}
.nav a:hover,.nav a.active{color:var(--primary);background:var(--primary-bg)}
.mobile-menu-btn{display:none;background:none;border:none;font-size:1.5rem;color:var(--text-dark);padding:0.5rem;border-radius:var(--radius-sm);transition:background 0.2s}
.mobile-menu-btn:hover{background:var(--surface-alt)}

/* HERO */
.hero{padding:5rem 0 7rem;background:var(--gradient-hero);position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-300px;right:-200px;width:800px;height:800px;background:radial-gradient(circle,rgba(99,102,241,0.08) 0%,transparent 65%);border-radius:50%;animation:heroPulse 6s ease-in-out infinite}
.hero::after{content:'';position:absolute;bottom:-200px;left:-100px;width:600px;height:600px;background:radial-gradient(circle,rgba(244,63,94,0.05) 0%,transparent 65%);border-radius:50%;animation:heroPulse 8s ease-in-out infinite 1s}
.hero .container{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}
.hero-content{animation:slideIn 0.6s var(--ease) both}
.hero-badge{display:inline-flex;align-items:center;gap:0.5rem;padding:0.45rem 1.1rem;background:var(--gradient-primary);color:#fff;border-radius:var(--radius-full);font-size:0.72rem;font-weight:700;text-transform:uppercase;letter-spacing:0.1em;margin-bottom:1.5rem;box-shadow:0 4px 15px var(--primary-glow)}
.hero-badge::before{content:'\2726';font-size:0.8rem}
.hero h1{margin-bottom:1.25rem;color:var(--text-dark)}
.hero h1 .gradient{background:linear-gradient(135deg,#6366f1 0%,#ec4899 50%,#f43f5e 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:1.15rem;color:var(--text-secondary);margin-bottom:2.25rem;max-width:500px;line-height:1.8}
.hero-cta{display:inline-flex;align-items:center;gap:0.75rem;padding:1rem 2.25rem;background:var(--gradient-primary);color:#fff;border-radius:var(--radius-full);font-weight:700;font-size:1rem;box-shadow:0 6px 25px var(--primary-glow);transition:all 0.3s var(--ease);position:relative;overflow:hidden}
.hero-cta::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.2),transparent);transition:left 0.5s var(--ease)}
.hero-cta:hover{transform:translateY(-3px);box-shadow:0 10px 35px var(--primary-glow);color:#fff}
.hero-cta:hover::before{left:100%}
.hero-cta::after{content:'\2192';transition:transform 0.3s var(--ease);font-size:1.1rem}
.hero-cta:hover::after{transform:translateX(5px)}
.hero-stats{display:flex;gap:2.5rem;margin-top:3rem}
.hero-stat{position:relative}
.hero-stat::after{content:'';position:absolute;right:-1.25rem;top:50%;transform:translateY(-50%);width:1px;height:40px;background:var(--border)}
.hero-stat:last-child::after{display:none}
.hero-stat-num{font-size:2.2rem;font-weight:900;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-0.03em}
.hero-stat-label{font-size:0.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.1em;font-weight:600}
.hero-visual{animation:slideIn 0.6s var(--ease) 0.15s both}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.hero-card{background:rgba(255,255,255,0.9);backdrop-filter:blur(10px);border-radius:var(--radius-lg);padding:1.5rem;box-shadow:var(--shadow-md);border:1px solid rgba(255,255,255,0.8);transition:all 0.35s var(--ease);position:relative;overflow:hidden}
.hero-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--card-gradient);transform:scaleX(0);transform-origin:left;transition:transform 0.4s var(--ease)}
.hero-card:hover{transform:translateY(-6px) scale(1.02);box-shadow:var(--shadow-lg)}
.hero-card:hover::before{transform:scaleX(1)}
.hero-card:nth-child(1){--card-gradient:var(--gradient-warm)}
.hero-card:nth-child(2){--card-gradient:var(--gradient-cool)}
.hero-card:nth-child(3){--card-gradient:var(--gradient-fresh)}
.hero-card:nth-child(4){--card-gradient:linear-gradient(135deg,#f59e0b,#ef4444)}
.hero-card-icon{width:48px;height:48px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:0.75rem;background:var(--card-icon-bg)}
.hero-card:nth-child(1){--card-icon-bg:linear-gradient(135deg,#fff1f2,#ffe4e6)}
.hero-card:nth-child(2){--card-icon-bg:linear-gradient(135deg,#ecfeff,#cffafe)}
.hero-card:nth-child(3){--card-icon-bg:linear-gradient(135deg,#ecfdf5,#d1fae5)}
.hero-card:nth-child(4){--card-icon-bg:linear-gradient(135deg,#fffbeb,#fef3c7)}
.hero-card h3{font-size:0.95rem;margin-bottom:0.2rem}
.hero-card p{font-size:0.8rem;color:var(--text-muted);margin:0}

/* SECTION HEADERS */
.section-header{text-align:center;margin-bottom:3.5rem}
.section-tag{display:inline-flex;align-items:center;gap:0.5rem;padding:0.4rem 1.1rem;background:var(--gradient-primary);color:#fff;border-radius:var(--radius-full);font-size:0.7rem;font-weight:700;text-transform:uppercase;letter-spacing:0.1em;margin-bottom:1.1rem;box-shadow:0 3px 12px var(--primary-glow)}
.section-header h2{margin-bottom:0.75rem}
.section-header p{font-size:1.1rem;color:var(--text-secondary);max-width:550px;margin:0 auto}

/* CALC CARDS */
.calc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem}
.calc-card{background:#fff;border-radius:var(--radius-xl);padding:1.75rem;border:1px solid var(--border-light);position:relative;overflow:hidden;transition:all 0.35s var(--ease);display:flex;flex-direction:column;text-decoration:none;box-shadow:var(--shadow-sm)}
.calc-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--card-accent);transform:scaleX(0);transform-origin:left;transition:transform 0.4s var(--ease)}
.calc-card::after{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:var(--card-accent-bg);opacity:0;transition:opacity 0.35s var(--ease);pointer-events:none}
.calc-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:transparent}
.calc-card:hover::before{transform:scaleX(1)}
.calc-card:hover::after{opacity:1}
.calc-card:nth-child(1){--card-accent:var(--gradient-primary);--card-accent-bg:rgba(99,102,241,0.03)}
.calc-card:nth-child(2){--card-accent:linear-gradient(90deg,#64748b,#475569);--card-accent-bg:rgba(100,116,139,0.03)}
.calc-card:nth-child(3){--card-accent:var(--gradient-cool);--card-accent-bg:rgba(6,182,212,0.03)}
.calc-card:nth-child(4){--card-accent:linear-gradient(90deg,#8b5cf6,#a78bfa);--card-accent-bg:rgba(139,92,246,0.03)}
.calc-card:nth-child(5){--card-accent:var(--gradient-warm);--card-accent-bg:rgba(244,63,94,0.03)}
.calc-card:nth-child(6){--card-accent:linear-gradient(90deg,#0ea5e9,#38bdf8);--card-accent-bg:rgba(14,165,233,0.03)}
.calc-card:nth-child(7){--card-accent:var(--gradient-fresh);--card-accent-bg:rgba(16,185,129,0.03)}
.calc-card:nth-child(8){--card-accent:linear-gradient(90deg,#f97316,#fb923c);--card-accent-bg:rgba(249,115,22,0.03)}
.calc-card-icon{width:56px;height:56px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.6rem;margin-bottom:1.25rem;transition:all 0.35s var(--ease-bounce);position:relative;z-index:1}
.calc-card:nth-child(1) .calc-card-icon{background:linear-gradient(135deg,#eef2ff,#e0e7ff)}
.calc-card:nth-child(2) .calc-card-icon{background:linear-gradient(135deg,#f1f5f9,#e2e8f0)}
.calc-card:nth-child(3) .calc-card-icon{background:linear-gradient(135deg,#ecfeff,#cffafe)}
.calc-card:nth-child(4) .calc-card-icon{background:linear-gradient(135deg,#f5f3ff,#ede9fe)}
.calc-card:nth-child(5) .calc-card-icon{background:linear-gradient(135deg,#fff1f2,#ffe4e6)}
.calc-card:nth-child(6) .calc-card-icon{background:linear-gradient(135deg,#f0f9ff,#e0f2fe)}
.calc-card:nth-child(7) .calc-card-icon{background:linear-gradient(135deg,#ecfdf5,#d1fae5)}
.calc-card:nth-child(8) .calc-card-icon{background:linear-gradient(135deg,#fff7ed,#ffedd5)}
.calc-card:hover .calc-card-icon{transform:scale(1.15) rotate(-5deg)}
.calc-card h3{margin-bottom:0.5rem;position:relative;z-index:1}
.calc-card p{font-size:0.875rem;color:var(--text-muted);margin-bottom:1.25rem;line-height:1.6;flex:1;position:relative;z-index:1}
.calc-card-link{font-size:0.85rem;font-weight:700;color:var(--primary);display:inline-flex;align-items:center;gap:0.35rem;position:relative;z-index:1;transition:all 0.25s var(--ease)}
.calc-card-link::after{content:'\2192';transition:transform 0.25s var(--ease)}
.calc-card:hover .calc-card-link{color:var(--primary-dark)}
.calc-card:hover .calc-card-link::after{transform:translateX(4px)}

/* FEATURES */
.why-section{background:linear-gradient(180deg,var(--surface-alt) 0%,var(--surface) 100%)}
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem}
.feature-card{background:#fff;border-radius:var(--radius-xl);padding:2rem 1.5rem;text-align:center;border:1px solid var(--border-light);transition:all 0.35s var(--ease);box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.feature-card::after{content:'';position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--feature-gradient);transform:scaleX(0);transition:transform 0.4s var(--ease)}
.feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.feature-card:hover::after{transform:scaleX(1)}
.feature-card:nth-child(1){--feature-gradient:var(--gradient-primary)}
.feature-card:nth-child(2){--feature-gradient:var(--gradient-warm)}
.feature-card:nth-child(3){--feature-gradient:var(--gradient-fresh)}
.feature-card:nth-child(4){--feature-gradient:linear-gradient(90deg,#f59e0b,#f97316)}
.feature-icon{width:68px;height:68px;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;font-size:1.7rem;margin:0 auto 1.25rem;transition:all 0.35s var(--ease-bounce)}
.feature-card:nth-child(1) .feature-icon{background:linear-gradient(135deg,#eef2ff,#e0e7ff)}
.feature-card:nth-child(2) .feature-icon{background:linear-gradient(135deg,#fff1f2,#ffe4e6)}
.feature-card:nth-child(3) .feature-icon{background:linear-gradient(135deg,#ecfdf5,#d1fae5)}
.feature-card:nth-child(4) .feature-icon{background:linear-gradient(135deg,#fffbeb,#fef3c7)}
.feature-card:hover .feature-icon{transform:scale(1.12) rotate(-5deg)}
.feature-card h3{margin-bottom:0.5rem;font-size:1.05rem}
.feature-card p{font-size:0.875rem;color:var(--text-muted);margin:0;line-height:1.6}

/* CALC PAGE - PREMIUM */
.calc-hero{background:var(--gradient-hero);padding:3.5rem 0;border-bottom:1px solid var(--border-light);position:relative;overflow:hidden}
.calc-hero::before{content:'';position:absolute;top:-100px;right:-100px;width:400px;height:400px;background:radial-gradient(circle,rgba(99,102,241,0.06) 0%,transparent 70%);border-radius:50%}
.calc-hero h1{font-size:clamp(1.8rem,4vw,2.8rem);margin-bottom:0.5rem}
.calc-hero p{font-size:1.05rem;max-width:600px}
.breadcrumb{display:flex;align-items:center;gap:0.5rem;font-size:0.85rem;color:var(--text-muted);margin-bottom:1.25rem;flex-wrap:wrap}
.breadcrumb a{color:var(--text-muted);padding:0.2rem 0.4rem;border-radius:var(--radius-xs);transition:all 0.2s var(--ease)}
.breadcrumb a:hover{color:var(--primary);background:var(--primary-bg)}
.breadcrumb-separator{color:var(--border);font-size:0.9rem}
.calc-container{display:grid;grid-template-columns:1fr 1fr;gap:2rem;padding:2.5rem 0 4rem}

/* CALC FORM - GLASS CARD */
.calc-form{background:rgba(255,255,255,0.95);backdrop-filter:blur(20px);border-radius:var(--radius-xl);padding:2rem;border:1px solid rgba(255,255,255,0.8);box-shadow:var(--shadow-lg);position:relative;overflow:hidden}
.calc-form::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary)}
.calc-form h2{font-size:1.3rem;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:2px solid var(--border-light);display:flex;align-items:center;gap:0.5rem}
.calc-form h2::before{content:'';width:8px;height:8px;background:var(--gradient-primary);border-radius:50%;flex-shrink:0}
.form-group{margin-bottom:1.25rem}
.form-group label{display:block;font-weight:600;color:var(--text-body);margin-bottom:0.5rem;font-size:0.85rem;letter-spacing:0.01em}
.form-group input,.form-group select{width:100%;padding:0.9rem 1.1rem;border:2px solid var(--border);border-radius:var(--radius-md);font-size:1rem;background:#fff;color:var(--text-dark);transition:all 0.25s var(--ease);box-shadow:var(--shadow-xs)}
.form-group input:hover,.form-group select:hover{border-color:#cbd5e1;box-shadow:var(--shadow-sm)}
.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(99,102,241,0.1),var(--shadow-sm)}
.form-group input::placeholder{color:var(--text-muted)}
.calc-btn{width:100%;padding:1rem;background:var(--gradient-primary);color:#fff;border:none;border-radius:var(--radius-md);font-size:1rem;font-weight:700;margin-top:0.75rem;transition:all 0.3s var(--ease);box-shadow:0 4px 18px var(--primary-glow);position:relative;overflow:hidden;letter-spacing:0.01em}
.calc-btn::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.2),transparent);transition:left 0.5s var(--ease)}
.calc-btn:hover{transform:translateY(-2px);box-shadow:0 8px 28px var(--primary-glow)}
.calc-btn:hover::before{left:100%}
.calc-btn:active{transform:translateY(0);box-shadow:0 2px 10px var(--primary-glow)}

/* RESULTS - GLOW CARDS */
.calc-results{background:rgba(255,255,255,0.95);backdrop-filter:blur(20px);border-radius:var(--radius-xl);padding:2rem;border:1px solid rgba(255,255,255,0.8);box-shadow:var(--shadow-lg);position:relative;overflow:hidden}
.calc-results::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-fresh)}
.calc-results h2{font-size:1.3rem;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:2px solid var(--border-light);display:flex;align-items:center;gap:0.5rem}
.calc-results h2::before{content:'';width:8px;height:8px;background:var(--gradient-fresh);border-radius:50%;flex-shrink:0}
.result-card,.result-item{background:linear-gradient(135deg,#f8fafc 0%,#fff 100%);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:1.25rem 1.5rem;margin-bottom:0.75rem;display:flex;justify-content:space-between;align-items:center;transition:all 0.3s var(--ease);position:relative;overflow:hidden}
.result-card::after,.result-item::after{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--gradient-primary);transform:scaleY(0);transition:transform 0.3s var(--ease);border-radius:0 2px 2px 0}
.result-card:hover,.result-item:hover{border-color:rgba(99,102,241,0.15);box-shadow:var(--shadow-sm);transform:translateX(4px)}
.result-card:hover::after,.result-item:hover::after{transform:scaleY(1)}
.result-label{font-size:0.78rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.07em}
.result-value{font-size:1.4rem;font-weight:800;color:var(--primary);letter-spacing:-0.02em}
.result-value.highlight{font-size:1.8rem;background:linear-gradient(135deg,var(--primary),var(--accent-1));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.result-unit{font-size:0.8rem;font-weight:500;color:var(--text-muted);margin-left:0.25rem}
.result-card.primary,.result-item.primary{background:linear-gradient(135deg,#eef2ff 0%,rgba(99,102,241,0.04) 100%);border-color:rgba(99,102,241,0.15)}
.result-card.primary::after,.result-item.primary::after{background:var(--gradient-warm);transform:scaleY(1)}

/* TABLES */
.cd-table,.result-table table,.schedule-table table{width:100%;border-collapse:separate;border-spacing:0;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);margin-top:1.25rem}
.cd-table th,.cd-table td,.result-table th,.result-table td,.schedule-table th,.schedule-table td{padding:0.875rem 1.25rem;text-align:left;border-bottom:1px solid var(--border-light)}
.cd-table th,.result-table th,.schedule-table th{background:linear-gradient(135deg,var(--surface-alt) 0%,#fff 100%);font-weight:700;font-size:0.72rem;text-transform:uppercase;letter-spacing:0.08em;color:var(--text-muted);border-bottom:2px solid var(--border)}
.cd-table tr:last-child td,.result-table tr:last-child td,.schedule-table tr:last-child td{border-bottom:none}
.cd-table tr:hover td,.result-table tr:hover td,.schedule-table tr:hover td{background:rgba(99,102,241,0.02)}

/* FAQ */
.faq-section{background:linear-gradient(180deg,var(--surface-alt) 0%,var(--surface) 100%)}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--border-light);border-radius:var(--radius-lg);margin-bottom:0.75rem;overflow:hidden;transition:all 0.3s var(--ease);box-shadow:var(--shadow-xs)}
.faq-item:hover{border-color:var(--border);box-shadow:var(--shadow-sm)}
.faq-item.active{border-color:rgba(99,102,241,0.2);box-shadow:0 4px 24px rgba(99,102,241,0.08)}
.faq-question{width:100%;padding:1.25rem 1.5rem;background:none;border:none;text-align:left;font-size:1rem;font-weight:600;color:var(--text-heading);display:flex;justify-content:space-between;align-items:center;gap:1rem;transition:color 0.25s var(--ease)}
.faq-question:hover{color:var(--primary)}
.faq-question::after{content:'+';font-size:1.1rem;font-weight:300;color:var(--text-muted);width:34px;height:34px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-full);background:var(--surface-alt);flex-shrink:0;transition:all 0.3s var(--ease-bounce);border:1px solid var(--border-light)}
.faq-item.active .faq-question::after{content:'\2212';color:#fff;background:var(--gradient-primary);transform:rotate(180deg);border-color:transparent;box-shadow:0 3px 12px var(--primary-glow)}
.faq-answer{padding:0 1.5rem;max-height:0;overflow:hidden;transition:max-height 0.4s var(--ease),padding 0.4s var(--ease)}
.faq-item.active .faq-answer{padding:0 1.5rem 1.5rem;max-height:500px}
.faq-answer p{color:var(--text-secondary);font-size:0.95rem;line-height:1.8}

/* RELATED TOOLS */
.related-tools{padding:2.5rem 0;border-top:1px solid var(--border-light)}
.related-tools h3{margin-bottom:1rem;font-size:1rem}
.related-links{display:flex;gap:0.75rem;flex-wrap:wrap}
.related-link{display:inline-flex;align-items:center;gap:0.5rem;padding:0.55rem 1.3rem;background:var(--surface-alt);border-radius:var(--radius-full);font-size:0.875rem;font-weight:600;color:var(--text-secondary);transition:all 0.25s var(--ease);border:1px solid var(--border-light)}
.related-link:hover{background:var(--primary-bg);color:var(--primary);border-color:rgba(99,102,241,0.2);transform:translateY(-2px);box-shadow:var(--shadow-sm)}

/* ========================================
   BLOG - PREMIUM DESIGN
   ======================================== */

/* Blog Hero - Dark gradient with glow rings */
.blog-hero-section{position:relative;background:linear-gradient(135deg,#0f172a 0%,#1e293b 50%,#0f172a 100%);overflow:hidden;padding:5rem 0 5.5rem}
.blog-hero-glow{position:absolute;border-radius:50%;filter:blur(80px);animation:pulseRing 6s ease-in-out infinite}
.blog-hero-glow-1{width:400px;height:400px;background:rgba(59,130,246,0.12);top:-100px;right:-80px}
.blog-hero-glow-2{width:350px;height:350px;background:rgba(139,92,246,0.1);bottom:-80px;left:-60px;animation-delay:1s}
.blog-hero-dots{position:absolute;inset:0;background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,0.04) 1px,transparent 0);background-size:32px 32px}
.blog-hero-inner{position:relative;z-index:1;text-align:center;max-width:640px;margin:0 auto}
.blog-hero-badge{display:inline-flex;align-items:center;gap:0.5rem;padding:0.45rem 1.2rem;background:rgba(59,130,246,0.12);border:1px solid rgba(59,130,246,0.2);border-radius:9999px;color:#93c5fd;font-size:0.8rem;font-weight:600;margin-bottom:2rem}
.blog-hero-section h1{color:#fff;font-size:clamp(2.5rem,5vw,4rem);font-weight:900;letter-spacing:-0.04em;margin-bottom:1rem}
.blog-hero-gradient{background:linear-gradient(135deg,#60a5fa,#93c5fd,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.blog-hero-section p{color:#94a3b8;font-size:1.1rem;line-height:1.7;max-width:520px;margin:0 auto}

/* Blog Posts Grid */
.blog-posts-section{padding:4rem 0 5rem;background:#f8fafc}
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.blog-card{background:#fff;border-radius:20px;overflow:hidden;border:1px solid #e2e8f0;text-decoration:none;display:block;transition:all 0.35s cubic-bezier(0.4,0,0.2,1);box-shadow:0 2px 8px rgba(0,0,0,0.04)}
.blog-card:hover{transform:translateY(-6px);box-shadow:0 12px 48px rgba(0,0,0,0.1);border-color:#93c5fd}
.blog-card-img{aspect-ratio:16/9;overflow:hidden;background:#f1f5f9}
.blog-card-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s cubic-bezier(0.4,0,0.2,1)}
.blog-card:hover .blog-card-img img{transform:scale(1.05)}
.blog-card-body{padding:1.5rem}
.blog-card-tags{display:flex;flex-wrap:wrap;gap:0.4rem;margin-bottom:0.75rem}
.blog-card-tag{padding:0.2rem 0.6rem;background:#eef2ff;color:#6366f1;border-radius:9999px;font-size:0.65rem;font-weight:700;text-transform:uppercase;letter-spacing:0.05em;border:1px solid rgba(99,102,241,0.1)}
.blog-card h2{color:#0f172a;font-size:1.05rem;font-weight:700;letter-spacing:-0.02em;margin-bottom:0.5rem;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.blog-card:hover h2{color:#4f46e5}
.blog-card p{font-size:0.85rem;color:#64748b;margin:0 0 1rem;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.blog-card-footer{display:flex;align-items:center;justify-content:space-between;padding-top:0.75rem;border-top:1px solid #f1f5f9}
.blog-card-date{display:flex;align-items:center;gap:0.4rem;font-size:0.75rem;color:#94a3b8;font-weight:500}
.blog-card-read{display:inline-flex;align-items:center;gap:0.3rem;font-size:0.8rem;font-weight:600;color:#4f46e5;transition:gap 0.2s}
.blog-card:hover .blog-card-read{gap:0.6rem}

/* Blog Empty State */
.blog-empty{text-align:center;padding:4rem 2rem;background:#fff;border-radius:20px;border:1px solid #e2e8f0}
.blog-empty-icon{width:56px;height:56px;background:#f1f5f9;border-radius:14px;display:flex;align-items:center;justify-content:center;margin:0 auto 1rem;color:#cbd5e1}
.blog-empty-title{font-size:1.1rem;font-weight:700;color:#1e293b;margin-bottom:0.3rem}
.blog-empty-desc{font-size:0.85rem;color:#94a3b8;margin:0}

/* Blog CTA Section */
.blog-cta-section{position:relative;background:linear-gradient(135deg,#0f172a 0%,#1e293b 50%,#0f172a 100%);padding:4rem 0;overflow:hidden}
.blog-cta-glow-1{position:absolute;width:350px;height:350px;background:rgba(59,130,246,0.1);border-radius:50%;filter:blur(80px);top:-80px;right:-60px}
.blog-cta-glow-2{position:absolute;width:300px;height:300px;background:rgba(139,92,246,0.08);border-radius:50%;filter:blur(80px);bottom:-60px;left:-40px}
.blog-cta-inner{position:relative;z-index:1;text-align:center;max-width:500px;margin:0 auto}
.blog-cta-inner h2{color:#fff;font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;margin-bottom:0.75rem}
.blog-cta-inner p{color:#94a3b8;font-size:1rem;margin-bottom:1.5rem}
.blog-cta-btn{display:inline-flex;align-items:center;gap:0.6rem;padding:0.85rem 2rem;background:#4f46e5;color:#fff;border-radius:14px;font-weight:700;font-size:0.95rem;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);box-shadow:0 6px 24px rgba(79,70,229,0.3)}
.blog-cta-btn:hover{transform:translateY(-2px);box-shadow:0 10px 32px rgba(79,70,229,0.4);color:#fff}

/* FOOTER */
.footer{background:linear-gradient(180deg,#0c0c1d 0%,#06060f 100%);padding:4.5rem 0 1.5rem;color:var(--text-secondary);position:relative}
.footer::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,#6366f1,#ec4899,#06b6d4,#10b981,transparent)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:2.5rem;margin-bottom:3rem}
.footer-brand .logo{font-size:1.5rem;margin-bottom:1rem;display:flex;align-items:center;gap:0.4rem;color:#fff}
.footer-brand .logo span{color:#fff;-webkit-text-fill-color:#fff}
.footer-brand p{font-size:0.875rem;color:rgba(255,255,255,0.45);line-height:1.7;max-width:280px}
.footer-column h4{color:rgba(255,255,255,0.9);font-size:0.72rem;text-transform:uppercase;letter-spacing:0.12em;font-weight:700;margin-bottom:1.25rem}
.footer-column li{margin-bottom:0.6rem}
.footer-column a{color:rgba(255,255,255,0.4);font-size:0.875rem;transition:all 0.25s var(--ease);display:inline-block}
.footer-column a:hover{color:#fff;transform:translateX(4px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.06);padding-top:1.5rem;display:flex;justify-content:space-between;align-items:center;font-size:0.8rem;color:rgba(255,255,255,0.35)}
.footer-bottom a{color:rgba(255,255,255,0.35)}
.footer-bottom a:hover{color:#fff}

/* SUPPORTING PAGES */
.page-header{background:var(--gradient-hero);padding:3.5rem 0;border-bottom:1px solid var(--border-light);position:relative;overflow:hidden}
.page-header::before{content:'';position:absolute;top:-80px;right:-80px;width:300px;height:300px;background:radial-gradient(circle,rgba(99,102,241,0.05) 0%,transparent 70%);border-radius:50%}
.page-header h1{font-size:clamp(2rem,4vw,2.8rem);margin-bottom:0.5rem}
.content-section{padding:3.5rem 0}
.content-section h2{font-size:1.4rem;margin-bottom:1.25rem}
.content-section p{margin-bottom:1rem;line-height:1.8}
.content-section ul,.content-section ol{margin-bottom:1.25rem;padding-left:1.5rem}
.content-section li{margin-bottom:0.5rem;color:var(--text-secondary);line-height:1.7}
.error-page{min-height:60vh;display:flex;align-items:center;justify-content:center;text-align:center}
.error-code{font-size:10rem;font-weight:900;background:linear-gradient(135deg,#6366f1,#ec4899);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1;margin-bottom:1rem}
.contact-form{max-width:600px;margin:0 auto}
.contact-form .form-group{margin-bottom:1.25rem}
.disclaimer{background:linear-gradient(135deg,#fef3c7,#fef9e7);border:1px solid #fcd34d;border-radius:var(--radius-lg);padding:1.25rem 1.5rem;margin:1.5rem 0;font-size:0.9rem;color:#92400e}
.content-card{background:#fff;border:1px solid var(--border-light);border-radius:var(--radius-xl);padding:2rem;margin-bottom:1.5rem;box-shadow:var(--shadow-sm);transition:all 0.3s var(--ease)}
.content-card:hover{box-shadow:var(--shadow-md);border-color:var(--border)}
.content-card .notice{font-size:0.9rem;color:var(--text-muted);font-style:italic;margin-bottom:1rem;padding:1rem;background:var(--surface-alt);border-radius:var(--radius-md);border:1px solid var(--border-light)}
.btn{display:inline-flex;align-items:center;gap:0.5rem;padding:0.6rem 1.6rem;border-radius:var(--radius-full);font-weight:600;font-size:0.9rem;transition:all 0.3s var(--ease);border:none}
.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:0 4px 15px var(--primary-glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px var(--primary-glow);color:#fff}
.blog-tag{display:inline-block;padding:0.25rem 0.85rem;background:linear-gradient(135deg,#eef2ff,#f5f3ff);color:var(--primary);border-radius:var(--radius-full);font-size:0.72rem;font-weight:700;text-transform:uppercase;letter-spacing:0.06em;border:1px solid rgba(99,102,241,0.1)}
.blog-article{background:#fff;border:1px solid var(--border-light);border-radius:var(--radius-xl);padding:2.5rem;margin-bottom:1.5rem;box-shadow:var(--shadow-sm)}
.blog-article h2{font-size:1.4rem;margin-bottom:1rem}
.blog-article p{margin-bottom:1rem;line-height:1.8}
.blog-cta{background:linear-gradient(135deg,#eef2ff 0%,#faf5ff 100%);border:1px solid rgba(99,102,241,0.15);border-radius:var(--radius-xl);padding:1.75rem;margin-top:2rem;text-align:center}
.blog-cta a{font-weight:700;color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.blog-cta a:hover{color:var(--primary-dark)}
.blog-category{font-size:0.85rem;color:var(--text-muted);margin-bottom:0.5rem;text-transform:uppercase;letter-spacing:0.06em;font-weight:600}
.sitemap-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem}
.sitemap-group{background:#fff;border:1px solid var(--border-light);border-radius:var(--radius-xl);padding:1.75rem;box-shadow:var(--shadow-sm);transition:all 0.3s var(--ease)}
.sitemap-group:hover{box-shadow:var(--shadow-md)}
.sitemap-group h3{font-size:1rem;margin-bottom:1rem;padding-bottom:0.75rem;border-bottom:2px solid var(--border-light)}
.sitemap-group li{margin-bottom:0.5rem}
.sitemap-group a{color:var(--text-secondary);font-size:0.9rem;transition:all 0.25s var(--ease);display:inline-block;padding:0.15rem 0;border-radius:var(--radius-xs)}
.sitemap-group a:hover{color:var(--primary);transform:translateX(4px);background:var(--primary-bg);padding-left:0.5rem}

/* ANIMATIONS */
@keyframes heroPulse{0%,100%{transform:scale(1);opacity:0.6}50%{transform:scale(1.2);opacity:0.25}}
@keyframes pulseRing{0%,100%{transform:scale(1);opacity:0.6}50%{transform:scale(1.15);opacity:0.25}}
@keyframes slideIn{from{opacity:0;transform:translateY(25px)}to{opacity:1;transform:translateY(0)}}
@keyframes slide-up{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
@keyframes fade-in{from{opacity:0}to{opacity:1)}
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}

/* RESPONSIVE */
@media(max-width:1024px){
  .calc-grid{grid-template-columns:repeat(2,1fr)}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .hero .container{grid-template-columns:1fr;gap:3rem}
  .hero-visual{display:none}
  .hero{padding:4rem 0 5rem}
}
@media(max-width:768px){
  h1{font-size:2.25rem}
  .nav{display:none;position:absolute;top:100%;left:0;right:0;background:rgba(255,255,255,0.98);backdrop-filter:blur(24px);flex-direction:column;padding:1rem;border-bottom:1px solid var(--border);box-shadow:var(--shadow-lg);border-radius:0 0 var(--radius-lg) var(--radius-lg)}
  .nav.active{display:flex}
  .nav a{width:100%;padding:0.75rem 1rem;border-radius:var(--radius-sm)}
  .mobile-menu-btn{display:block}
  .calc-container{grid-template-columns:1fr;gap:1.5rem}
  .footer-grid{grid-template-columns:1fr 1fr;gap:2rem}
  .footer-bottom{flex-direction:column;gap:1rem;text-align:center}
  .calc-grid{grid-template-columns:1fr}
  .features-grid{grid-template-columns:1fr}
  .blog-grid{grid-template-columns:1fr}
  .cd-table,.result-table table,.schedule-table table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .result-card,.result-item{flex-direction:column;align-items:flex-start;gap:0.5rem}
  .hero-stats{gap:1.5rem}
  .hero-stat::after{display:none}
  .section{padding:4rem 0}
  .post-layout .container{grid-template-columns:1fr;gap:2rem}
  .post-sidebar{position:static;order:-1}
  .toc-card{display:block}
  .toc-card nav{flex-direction:row;flex-wrap:wrap;gap:0.3rem}
  .toc-link{border-left:none;border-bottom:2px solid transparent;padding:0.35rem 0.7rem;font-size:0.75rem}
  .toc-link.active{border-left-color:transparent;border-bottom-color:var(--primary)}
  .post-hero h1{font-size:1.5rem}
  .post-meta{flex-direction:column;align-items:flex-start}
  .post-content{padding:1.5rem}
  .post-content h2{font-size:1.15rem}
  .step{padding:0.75rem}
  .sidebar-cta{margin-top:1rem}
  .blog-hero-section{padding:3.5rem 0 4rem}
  .blog-hero-section h1{font-size:clamp(2rem,4vw,3rem)}
}
@media(max-width:480px){
  h1{font-size:1.85rem}
  .container{padding:0 1rem}
  .calc-form,.calc-results{padding:1.25rem}
  .footer-grid{grid-template-columns:1fr}
  .hero-stats{gap:1rem}
  .hero-stat-num{font-size:1.6rem}
  .hero{padding:3rem 0 4rem}
  .section{padding:3rem 0}
}

/* Blog Post - Compact Centered Layout */
.post-hero{background:var(--gradient-hero);padding:3rem 0 2rem;border-bottom:1px solid var(--border-light);position:relative;overflow:hidden}
.post-hero::before{content:'';position:absolute;top:-80px;right:-80px;width:300px;height:300px;background:radial-gradient(circle,rgba(99,102,241,0.05) 0%,transparent 70%);border-radius:50%}
.post-hero .breadcrumb{font-size:0.82rem;color:var(--text-muted);margin-bottom:1rem}
.post-hero .breadcrumb a{color:var(--text-muted)}
.post-hero .breadcrumb a:hover{color:var(--primary)}
.post-hero .breadcrumb-sep{color:var(--border);margin:0 0.3rem}
.post-tag{display:inline-block;padding:0.25rem 0.85rem;background:linear-gradient(135deg,#eef2ff,#f5f3ff);color:var(--primary);border-radius:9999px;font-size:0.68rem;font-weight:700;text-transform:uppercase;letter-spacing:0.06em;border:1px solid rgba(99,102,241,0.1);margin-bottom:1rem}
.post-hero h1{font-size:clamp(1.6rem,3.5vw,2.3rem);margin-bottom:0.75rem;letter-spacing:-0.03em}
.post-meta{display:flex;align-items:center;gap:1rem}
.post-author{display:flex;align-items:center;gap:0.6rem}
.post-avatar{width:34px;height:34px;background:var(--gradient-primary);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:0.78rem;flex-shrink:0}
.post-author strong{font-size:0.85rem;color:var(--text-heading)}
.post-author span{font-size:0.78rem;color:var(--text-muted);display:block}

/* Featured Image */
.post-featured{max-width:760px;margin:0 auto;padding:1.5rem 1.5rem 0}
.post-featured img{width:100%;height:auto;border-radius:16px;box-shadow:0 4px 24px rgba(0,0,0,0.08);border:1px solid var(--border-light)}

/* Post Layout - Content Left, Sidebar Right */
.post-layout{padding:2rem 0 4rem;background:var(--surface-alt)}
.post-layout .container{display:grid;grid-template-columns:1fr 240px;gap:2.5rem;align-items:start;max-width:1000px}

/* Post Content - Left */
.post-content{background:#fff;border:1px solid var(--border-light);border-radius:20px;padding:2.5rem;box-shadow:var(--shadow-sm)}
.post-content h2{font-size:1.3rem;margin-top:2rem;margin-bottom:0.75rem;color:var(--text-heading);padding-bottom:0.5rem;border-bottom:2px solid var(--border-light);letter-spacing:-0.02em}
.post-content h2:first-of-type{margin-top:0;border-bottom:none;padding-bottom:0}
.post-content h3{font-size:1.05rem;margin-top:1.5rem;margin-bottom:0.6rem;color:var(--text-heading);font-weight:700}
.post-content p{font-size:0.92rem;line-height:1.75;margin-bottom:1rem;color:var(--text-body)}
.post-content strong{color:var(--text-heading);font-weight:700}
.post-content a{color:var(--primary);font-weight:600;text-decoration:underline;text-decoration-color:rgba(99,102,241,0.25);text-underline-offset:3px;transition:text-decoration-color 0.2s}
.post-content a:hover{text-decoration-color:var(--primary)}
.post-content ul,.post-content ol{margin:0.75rem 0 1.25rem;padding-left:1.5rem}
.post-content li{margin-bottom:0.4rem;color:var(--text-body);line-height:1.7;font-size:0.92rem}
.post-content ul li{list-style:disc}
.post-content ol li{list-style:decimal}

/* Post Image */
.post-img{width:100%;height:auto;border-radius:12px;margin:1.25rem 0;border:1px solid var(--border-light);box-shadow:var(--shadow-xs)}

/* Post Table */
.tbl{overflow-x:auto;margin:1rem 0;border-radius:12px;border:1px solid var(--border);-webkit-overflow-scrolling:touch}
.tbl table{width:100%;border-collapse:collapse}
.tbl th,.tbl td{padding:0.6rem 0.9rem;text-align:left;border-bottom:1px solid var(--border-light);font-size:0.85rem}
.tbl th{background:linear-gradient(135deg,#f8fafc,#fff);font-weight:700;font-size:0.68rem;text-transform:uppercase;letter-spacing:0.07em;color:var(--text-muted);border-bottom:2px solid var(--border);white-space:nowrap}
.tbl tr:last-child td{border-bottom:none}
.tbl tr:hover td{background:rgba(99,102,241,0.02)}
.tbl td strong{color:var(--text-heading);font-weight:600}

/* Post Callout */
.post-callout{display:flex;gap:0.75rem;padding:0.9rem 1.1rem;border-radius:12px;margin:1.25rem 0;font-size:0.85rem;line-height:1.6;border:1px solid}
.post-callout.tip{background:linear-gradient(135deg,#ecfdf5,#d1fae5);border-color:rgba(16,185,129,0.2);color:#065f46}
.post-callout.warning{background:linear-gradient(135deg,#fffbeb,#fef3c7);border-color:rgba(245,158,11,0.2);color:#92400e}
.post-callout a{color:inherit;font-weight:700;text-decoration:underline;text-underline-offset:2px}
.callout-icn{font-size:1rem;flex-shrink:0}

/* Post Steps */
.post-steps{margin:1rem 0}
.step{display:flex;gap:0.9rem;margin-bottom:0.75rem;padding:0.9rem 1.1rem;background:#fff;border:1px solid var(--border-light);border-radius:12px;box-shadow:var(--shadow-xs);transition:all 0.25s var(--ease)}
.step:hover{box-shadow:var(--shadow-sm);border-color:rgba(99,102,241,0.15)}
.step-num{width:30px;height:30px;background:var(--gradient-primary);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:0.78rem;flex-shrink:0}
.step strong{font-size:0.88rem;color:var(--text-heading);display:block;margin-bottom:0.2rem}
.step p{margin:0;font-size:0.82rem;color:var(--text-secondary);line-height:1.6}

/* Post CTA */
.post-cta{background:linear-gradient(135deg,#eef2ff 0%,#faf5ff 100%);border:1px solid rgba(99,102,241,0.12);border-radius:16px;padding:1.5rem;margin:1.5rem 0;text-align:center;position:relative;overflow:hidden}
.post-cta::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-primary)}
.post-cta h3{margin-bottom:0.5rem;font-size:1.1rem;color:var(--text-heading)}
.post-cta p{margin-bottom:0.75rem;color:var(--text-body);font-size:0.88rem}
.post-cta .btn{padding:0.6rem 1.5rem;font-size:0.85rem}

/* Post FAQ */
.post-faq details{background:#fff;border:1px solid var(--border-light);border-radius:12px;margin-bottom:0.5rem;overflow:hidden;transition:all 0.3s var(--ease)}
.post-faq details[open]{border-color:rgba(99,102,241,0.2);box-shadow:0 2px 12px rgba(99,102,241,0.06)}
.post-faq summary{padding:0.85rem 1.1rem;font-weight:600;font-size:0.88rem;color:var(--text-heading);cursor:pointer;list-style:none;display:flex;align-items:center;gap:0.5rem;transition:color 0.2s}
.post-faq summary::-webkit-details-marker{display:none}
.post-faq summary::before{content:'+';font-size:1rem;font-weight:300;color:var(--text-muted);width:24px;height:24px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--surface-alt);flex-shrink:0;transition:all 0.3s var(--ease)}
.post-faq details[open] summary::before{content:'−';color:#fff;background:var(--gradient-primary)}
.post-faq summary:hover{color:var(--primary)}
.post-faq details p{padding:0 1.1rem 1rem;font-size:0.85rem;color:var(--text-secondary);line-height:1.7;margin:0}

/* Post Sources */
.post-sources{margin:0.75rem 0 1.25rem;padding-left:1.25rem}
.post-sources li{margin-bottom:0.35rem;font-size:0.85rem;color:var(--text-secondary);line-height:1.6;list-style:disc}
.post-sources a{color:var(--primary);font-weight:600;text-decoration:underline;text-underline-offset:2px}

/* Post Sidebar - Right */
.post-sidebar{position:sticky;top:90px;height:fit-content}
.toc-card{background:#fff;border:1px solid var(--border-light);border-radius:16px;padding:1.25rem;box-shadow:var(--shadow-sm);border-top:3px solid var(--primary);margin-bottom:1rem}
.toc-card h4{font-size:0.65rem;text-transform:uppercase;letter-spacing:0.12em;color:var(--text-muted);margin-bottom:0.75rem;font-weight:800}
.toc-card nav{display:flex;flex-direction:column;gap:0.1rem}
.toc-link{display:block;padding:0.4rem 0.7rem;font-size:0.78rem;color:var(--text-secondary);border-radius:8px;transition:all 0.2s var(--ease);border-left:2px solid transparent;font-weight:500;text-decoration:none;line-height:1.4}
.toc-link:hover{color:var(--primary);background:var(--primary-bg);border-left-color:var(--primary)}
.toc-link.active{color:var(--primary);background:var(--primary-bg);border-left-color:var(--primary);font-weight:600}
.sidebar-cta{background:linear-gradient(135deg,#eef2ff 0%,#faf5ff 100%);border:1px solid rgba(99,102,241,0.12);border-radius:16px;padding:1.25rem;text-align:center}
.sidebar-cta h4{font-size:0.88rem;font-weight:700;color:var(--text-heading);margin-bottom:0.4rem}
.sidebar-cta p{font-size:0.8rem;color:var(--text-muted);margin-bottom:0.75rem}
.sidebar-cta .btn{padding:0.5rem 1.2rem;font-size:0.8rem;width:100%}

/* PRINT */
@media print{.header,.footer,.mobile-menu-btn,.calc-btn{display:none}body{font-size:12pt;color:#000}a{color:#000;text-decoration:underline}}