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/* Platinum-led revision: platinum is the visual field; black is reserved for depth and contrast. */
:root{--graphite:#e9edf0;--black:#101316;--slate:#f7f9fa;--silver:#66717b;--platinum:#f7f9fa;--steel:#68737d;--line:rgba(16,19,22,.16);--accent:#5b8994}
body{background:var(--graphite);color:var(--black)}
.site-header{background:rgba(247,249,250,.94);border-bottom-color:var(--line)}
.brand-mark{border-color:var(--black);color:var(--black)}
.brand small,.primary-nav a{color:var(--steel)}
.primary-nav a:hover{color:var(--black)}
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.eyebrow{color:var(--steel)}
.eyebrow span{border-right-color:var(--steel);color:var(--black)}
.stars{color:var(--black)}
.stars span{text-shadow:0 0 14px rgba(16,19,22,.18)}
.stars small{color:var(--steel)}
.tutor-name{color:var(--black)}
.tutor-name:before{color:var(--accent)}
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.hero-lede{color:#3d474f}
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.booking-notice strong{color:var(--black)}
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.subject-card{background:var(--slate);border-color:rgba(16,19,22,.16)}
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.card-link,.text-link{color:var(--accent)}
.approach{background:#d1d8dd;border-bottom-color:var(--line)}
.approach-grid>div:first-child>p:last-child,.approach-steps p{color:#47535b}
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.booking{background:linear-gradient(135deg,#d5dce0,#b9c2c9)}
.booking .button-primary{background:var(--black);color:var(--platinum)}
.booking .button-outline{border-color:var(--black);color:var(--black)}
.site-footer{background:var(--black);color:#b8c0c7}
.site-footer a{color:#d6e3e7}
@media (max-width:800px){.primary-nav{background:var(--platinum);border-color:var(--line)}}