/* =====================================================================
   Better Golf — landing page
   The visual language: foundry stamp + spec card + manifesto.
   Palette: Fairway Black, Range Cream, TPU Orange.
   Type: GT America Mono fallback → JetBrains Mono → ui-monospace.
   ===================================================================== */

:root {
    --fairway-black: #0F1411;
    --range-cream: #F4EFE6;
    --tpu-orange: #E8581A;
    --bunker-sand: #C9B894;
    --pro-white: #FBFAF7;
    --carbon-weave: #1C1F23;
    --rule: 1px solid var(--fairway-black);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    background: var(--range-cream);
    color: var(--fairway-black);
    font-family: "JetBrains Mono", "GT America Mono", ui-monospace, "SF Mono", Menlo, monospace;
    font-size: 16px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.golf {
    max-width: 760px;
    margin: 0 auto;
    padding: 64px 32px 96px;
}

/* WORDMARK ========================================================== */
.golf-wordmark {
    margin-bottom: 96px;
    text-align: left;
}
.wm-line-1, .wm-line-2 {
    font-weight: 600;
    font-size: clamp(56px, 12vw, 120px);
    line-height: 0.95;
    letter-spacing: -0.04em;
    text-transform: uppercase;
}
.wm-line-2 { color: var(--fairway-black); }
.wm-rule {
    width: 60%;
    border-top: var(--rule);
    margin: 20px 0 12px 0;
}
.wm-sub {
    font-size: 12px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

/* HERO ============================================================== */
.hero { margin-bottom: 120px; }
.lede {
    font-size: clamp(20px, 3.2vw, 28px);
    line-height: 1.35;
    color: var(--fairway-black);
    opacity: 0.55;
    font-weight: 400;
}
.lede-emph {
    opacity: 1;
    color: var(--fairway-black);
    margin-bottom: 40px;
}
.lede-emph em,
.lede em { font-style: normal; color: var(--tpu-orange); font-weight: 600; }
.lede-emph::first-line { font-weight: 600; }
.thesis {
    font-size: clamp(22px, 3.6vw, 34px);
    line-height: 1.35;
    font-weight: 500;
    margin-bottom: 16px;
    max-width: 640px;
}
.thesis-tail {
    font-size: clamp(20px, 3.2vw, 28px);
    line-height: 1.35;
    font-weight: 600;
}

/* SECTION =========================================================== */
.section { margin-bottom: 96px; }
.section-title {
    font-size: 12px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--fairway-black);
    opacity: 0.55;
    margin-bottom: 28px;
    border-top: var(--rule);
    padding-top: 20px;
    font-weight: 500;
}
.section-body p {
    margin-bottom: 18px;
    font-size: 17px;
    line-height: 1.7;
    max-width: 620px;
}
.section-body em {
    font-style: normal;
    color: var(--tpu-orange);
    font-weight: 600;
}

/* EQUATION ========================================================== */
.equation-section { margin-bottom: 96px; }
.equation {
    border-top: var(--rule);
    border-bottom: var(--rule);
    padding: 24px 0;
    margin-bottom: 24px;
}
.eq-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 10px 0;
    font-size: 15px;
}
.eq-label {
    color: var(--fairway-black);
    opacity: 0.85;
}
.eq-value {
    font-variant-numeric: tabular-nums;
    font-weight: 500;
}
.eq-divider {
    border-top: var(--rule);
    margin: 8px 0;
    padding: 0;
    height: 0;
}
.eq-emph .eq-label,
.eq-emph .eq-value {
    color: var(--tpu-orange);
    font-weight: 600;
    opacity: 1;
}
.equation-caption {
    font-size: 14px;
    line-height: 1.65;
    color: var(--fairway-black);
    opacity: 0.7;
    max-width: 560px;
    margin-top: 12px;
}

/* THE FOUR ========================================================== */
.four-section { margin-bottom: 96px; }
.four-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
    border-top: var(--rule);
    border-left: var(--rule);
}
.four-cell {
    border-right: var(--rule);
    border-bottom: var(--rule);
    padding: 24px;
    background: var(--range-cream);
}
.four-cell-emph {
    background: var(--fairway-black);
    color: var(--range-cream);
}
.four-cell-emph .four-num { color: var(--tpu-orange); }
.four-num {
    font-size: 12px;
    letter-spacing: 0.18em;
    opacity: 0.6;
    margin-bottom: 8px;
}
.four-name {
    font-size: clamp(20px, 3vw, 28px);
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 6px;
    text-transform: uppercase;
}
.four-desc {
    font-size: 14px;
    line-height: 1.55;
    opacity: 0.8;
}
@media (max-width: 560px) {
    .four-grid { grid-template-columns: 1fr; border-left: none; border-top: var(--rule); }
    .four-cell { border-right: none; border-left: var(--rule); }
}

/* SPEC ============================================================== */
.spec-section { margin-bottom: 96px; }
.spec-table {
    border-top: var(--rule);
    border-bottom: var(--rule);
    padding: 0;
}
.spec-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 12px 0;
    border-bottom: 1px solid rgba(15, 20, 17, 0.08);
    font-size: 14px;
}
.spec-row:last-child { border-bottom: none; }
.spec-label {
    color: var(--fairway-black);
    opacity: 0.7;
}
.spec-value {
    font-variant-numeric: tabular-nums;
    font-weight: 500;
}
.spec-note {
    font-size: 13px;
    line-height: 1.6;
    color: var(--fairway-black);
    opacity: 0.6;
    margin-top: 16px;
    font-style: italic;
}

/* WAITLIST ========================================================== */
.waitlist-section {
    border-top: 2px solid var(--fairway-black);
    border-bottom: 2px solid var(--fairway-black);
    padding: 56px 0;
    margin-bottom: 96px;
    text-align: center;
}
.waitlist-section .section-title { border-top: none; padding-top: 0; }
.waitlist-body {
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: 36px;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}
.waitlist-cta {
    display: inline-block;
    background: var(--tpu-orange);
    color: var(--range-cream);
    padding: 18px 32px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    transition: transform 80ms ease, background 80ms ease;
}
.waitlist-cta:hover {
    background: var(--fairway-black);
    transform: translateY(-1px);
}
.waitlist-note {
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-top: 28px;
    opacity: 0.6;
}

/* COLOPHON ========================================================== */
.colophon { margin-top: 0; }
.colo-rule { border-top: var(--rule); margin-bottom: 32px; }
.colo-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}
.colo-label {
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    opacity: 0.55;
    margin-bottom: 6px;
}
.colo-value {
    font-size: 13px;
    font-weight: 500;
}
.colo-value a {
    color: var(--fairway-black);
    text-decoration: none;
    border-bottom: 1px solid var(--fairway-black);
}
.mantra {
    font-size: 14px;
    line-height: 1.7;
    opacity: 0.6;
    text-align: left;
    max-width: 480px;
}
@media (max-width: 560px) {
    .colo-grid { grid-template-columns: repeat(2, 1fr); }
}

/* SELECTION ========================================================= */
::selection {
    background: var(--tpu-orange);
    color: var(--range-cream);
}