/* Shared brand system: clear typography, forest ink, architectural spacing. */
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/* Arno's editorial identity: mathematics, warmth and a clear next step. */
:root{--paper:#faf8f2;--accent:#a65c3d}body>header{background:#faf8f2f5;backdrop-filter:blur(16px)}.hero{position:relative;isolation:isolate;overflow:hidden;background:radial-gradient(ellipse at 88% 20%,#305b4c 0,transparent 55%),#153e38}.hero::before{content:'';position:absolute;inset:0;z-index:-1;opacity:.1;background-image:linear-gradient(#dce5df 1px,transparent 1px),linear-gradient(90deg,#dce5df 1px,transparent 1px);background-size:68px 68px;mask-image:linear-gradient(90deg,transparent,#000)}.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:22px;margin:30px 0}.hero-actions .button{display:inline-flex;align-items:center;gap:30px;font-weight:750;box-shadow:0 8px 24px #091f1926}.hero-secondary{color:#e4eadf;font-weight:650;border-bottom:1px solid #779487;padding:8px 0}.hero-credentials{display:flex;flex-wrap:wrap;gap:9px 18px;max-width:540px;margin:22px 0;color:#e2e7dd;font-size:13px;line-height:1.65}.hero-credentials span{display:flex;gap:9px;align-items:center}.hero-credentials span::before{content:'';width:5px;height:5px;background:#dab597;flex-shrink:0;transform:rotate(45deg)}.hero .math-paper{position:relative;border-radius:2px;transform:rotate(2deg);border:1px solid #eee8d7;border-top:5px solid #cfb18c;box-shadow:10px 12px 0 #ffffff0d,0 26px 65px #04191566}.paper-seal{display:flex;align-items:center;gap:10px;font:700 25px Georgia,serif;margin-bottom:22px;color:#153e38}.paper-seal span{font:700 9px/1.5 system-ui,sans-serif;letter-spacing:1.8px;border-left:1px solid #bbc6b8;padding-left:12px}.course{position:relative;display:flex;flex-direction:column;border-top:3px solid #b59470;border-radius:4px;transition:transform .2s,box-shadow .2s}.course:hover{transform:translateY(-4px);box-shadow:0 14px 35px #153e380d}.course .tags{margin-bottom:22px}.course-link{display:flex;justify-content:space-between;gap:15px;font-weight:700;font-size:16px;border-top:1px solid var(--line);padding-top:18px;margin-top:auto}.course-link:hover{color:var(--accent)}.section .eyebrow{letter-spacing:.1em}.steps article{border-top:2px solid #b59470}.approach-invite{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:30px 0 0;margin-top:34px;border-top:1px solid #c2d2c8}.approach-invite h3{font-size:25px;margin:10px 0}.approach-invite p{margin-bottom:0}.approach-invite .button{flex-shrink:0}.about-mark{border-radius:3px;border-left:5px solid #b59470}.form-intro h3{font-size:25px;line-height:1.4;margin:10px 0}.contact .form-intro p{color:#52675e;font-size:15px}.intent-picker{border:0;border-bottom:1px solid var(--line);padding:0 0 22px;margin:20px 0 24px}.intent-picker legend{font-weight:650;font-size:14px;margin-bottom:12px}.intent-picker>div{display:flex;gap:8px;flex-wrap:wrap}.intent-picker button{border:1px solid #bdc9bf;background:#f7f9f5;color:#153e38;padding:9px 13px;border-radius:5px;font-size:14px;min-height:44px}.intent-picker button[aria-pressed=true]{background:#153e38;color:white;border-color:#153e38}.contact form>button[type=submit]{width:100%;font-weight:750;min-height:54px}.consult-steps{list-style:none;padding:0;margin:26px 0 32px;display:grid;gap:13px}.consult-steps li{display:flex;gap:17px;align-items:center;font-size:15px;color:#e0e9e3}.consult-steps b{font-family:Georgia,serif;font-size:18px;color:#ddbaa0;border:1px solid #628073;width:34px;height:34px;display:grid;place-items:center;flex-shrink:0}.mobile-contact-dock{display:none}.button,.small-cta{transition:transform .18s,box-shadow .18s}.button:hover,.small-cta:hover{transform:translateY(-2px);box-shadow:0 8px 24px #153e3815}@media(max-width:760px){.hero .math-paper{transform:none}.hero-actions{align-items:flex-start;gap:12px;flex-direction:column}.hero-credentials{font-size:12px;gap:9px 14px}.hero-note{font-size:12px}.approach-invite{flex-direction:column;align-items:flex-start;gap:20px}.approach-invite h3{font-size:23px}.mobile-contact-dock{display:flex;align-items:center;justify-content:space-between;gap:12px;position:fixed;bottom:0;left:0;right:0;padding:12px 20px calc(12px + env(safe-area-inset-bottom));background:#faf8f2f5;border-top:1px solid #d5dfd3;backdrop-filter:blur(16px);z-index:6;box-shadow:0 -8px 30px #153e3809}.mobile-contact-dock>span{font-size:12px;color:#52675e}.mobile-contact-dock a{padding:11px 18px;background:#153e38;color:white;border-radius:4px;font-size:14px;font-weight:700;min-height:44px;white-space:nowrap}.mobile-contact-dock.contact-visible{visibility:hidden;pointer-events:none}body>footer{padding-bottom:110px}.contact form .form-grid{grid-template-columns:1fr}.contact .form-intro h3{font-size:23px}}@media(prefers-reduced-motion:reduce){.course,.button,.small-cta{transition:none}.course:hover,.button:hover,.small-cta:hover{transform:none}}

/* Keep learning-path invitation legible against its light panel. */
.path-invitation{color:#153e38}.path-invitation p{color:#153e38}.path-invitation .button{background:#153e38;color:#fff}.path-invitation .button:hover{background:#245348;color:#fff}

.brand-caption{white-space:normal;max-width:220px;line-height:1.5!important;letter-spacing:0!important}@media(max-width:760px){.brand-caption{max-width:160px;font-size:10px!important}}

.header-actions #lang{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;font-size:14px;font-weight:650;padding:8px;white-space:nowrap}