/* =============================================================
   FOUNTAIN PARTNERS — MASTER STYLESHEET
   Edit design tokens in :root below; changes propagate site-wide.

   FONTS: Self-hosted WOFF2 subsets in /assets/fonts/.
   To update fonts, replace the woff2 files and the @font-face
   rules below; the --font-* tokens in :root control usage.
   ============================================================= */

/* ---- SELF-HOSTED FONTS ---- */

/* Metric-matched fallbacks: shrink CLS during font swap by
   adjusting system font metrics to approximate the web font. */
@font-face {
  font-family: "Oxanium Fallback";
  src: local("Arial");
  size-adjust: 107%;
  ascent-override: 92%;
  descent-override: 22%;
  line-gap-override: 0%;
}
@font-face {
  font-family: "JetBrains Mono Fallback";
  src: local("Courier New");
  size-adjust: 113%;
  ascent-override: 83%;
  descent-override: 21%;
  line-gap-override: 0%;
}

/* Oxanium — display/headings (variable font, weights 300–600) */
@font-face {
  font-family: "Oxanium";
  font-style: normal;
  font-weight: 300 600;
  font-display: swap;
  src: url("../assets/fonts/oxanium-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Oxanium";
  font-style: normal;
  font-weight: 300 600;
  font-display: swap;
  src: url("../assets/fonts/oxanium-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* Inter — body text (variable font, weights 400–500) */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400 500;
  font-display: swap;
  src: url("../assets/fonts/inter-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400 500;
  font-display: swap;
  src: url("../assets/fonts/inter-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* JetBrains Mono — labels/eyebrows (variable font, weight 400) */
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400 500;
  font-display: swap;
  src: url("../assets/fonts/jetbrains-mono-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400 500;
  font-display: swap;
  src: url("../assets/fonts/jetbrains-mono-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  /* ---- SITE SCALE ----
     Multiply the browser's base font size by this factor.
     1.0 = no change  |  1.1 = 10% larger  |  1.15 = 15% larger  |  1.2 = 20% larger
     Changing this one value re-scales all rem-based typography and spacing. */
  --site-scale: 1.15;

  /* ---- COLOR TOKENS ---- */
  --color-bg:            #07090c;   /* page background, near-black */
  --color-bg-elev:       #0d1117;   /* elevated surfaces / cards */
  --color-bg-elev-2:     #11161d;   /* secondary elevated */
  --color-border:        #1c232c;   /* hairline borders */
  --color-border-bright: #2a3540;   /* hover borders */
  --color-text:          #e6edf3;   /* primary text */
  --color-text-dim:      #8b97a4;   /* secondary text */
  --color-text-faint:    #5b6672;   /* tertiary / captions */
  --color-accent:        #4da3ff;   /* electric blue accent */
  --color-accent-dim:    #2d6db5;   /* accent muted */
  --color-accent-glow:   rgba(77, 163, 255, 0.14);

  /* ---- TYPOGRAPHY ---- */
  --font-display: "Oxanium", "Oxanium Fallback", "Helvetica Neue", sans-serif;
  --font-body:    "Inter", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", "JetBrains Mono Fallback", "SF Mono", monospace;

  --fs-hero:   clamp(2.6rem, 6vw, 5rem);
  --fs-h1:     clamp(2rem, 4vw, 3.2rem);
  --fs-h2:     clamp(1.5rem, 3vw, 2.2rem);
  --fs-h3:     1.25rem;
  --fs-body:   1.0rem;
  --fs-small:  0.875rem;
  --fs-mono:   0.78rem;

  --fw-light: 300;
  --fw-reg:   400;
  --fw-med:   500;
  --fw-bold:  600;

  /* ---- SPACING & LAYOUT ---- */
  --maxw:        73.75rem;  /* 1180px / 16 */
  --gutter:      clamp(1.25rem, 4vw, 3rem);
  --section-y:   clamp(2.5rem, 5vw, 4.5rem);
  --radius:      0.25rem;   /* 4px / 16 */
  --radius-lg:   0.625rem;  /* 10px / 16 */
  --logo-cell-h: 5.25rem;

  /* ---- MOTION ---- */
  --ease:        cubic-bezier(0.22, 1, 0.36, 1);
  --dur:         0.5s;
}

/* ---- RESET ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: calc(100% * var(--site-scale)); scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: var(--fw-reg);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Ambient background texture: subtle grid + radial glow */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 20% -10%, var(--color-accent-glow), transparent 45%),
    radial-gradient(circle at 90% 110%, rgba(45,109,181,0.10), transparent 40%);
  pointer-events: none;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.18;
  mask-image: radial-gradient(circle at 50% 30%, black, transparent 80%);
  pointer-events: none;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ---- TYPOGRAPHY HELPERS ---- */
h1, h2, h3 { font-family: var(--font-display); font-weight: var(--fw-med); line-height: 1.1; letter-spacing: -0.02em; }
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: inline-block;
}
.dim   { color: var(--color-text-dim); }
.faint { color: var(--color-text-faint); }

/* ---- LAYOUT ---- */
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block-start: var(--section-y); padding-block-end: var(--section-y); }
.divider { height: 1px; background: var(--color-border); border: 0; margin: 0; }

/* =============================================================
   NAVBAR
   ============================================================= */
.nav {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(7,9,12,0.72);
  border-bottom: 1px solid var(--color-border);
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--maxw); margin-inline: auto;
  padding: 1.1rem var(--gutter);
}
.brand { display: flex; align-items: center; gap: 0.6rem; font-family: var(--font-display); font-weight: var(--fw-med); font-size: 1.375rem; letter-spacing: -0.01em; line-height: 1; }
.brand__mark {
  display: block; width: 1.375rem; height: 1.375rem; flex: none;  /* 22px / 16 */
  background: url('../assets/img/logos/Fountain%20Logo%20Circles.svg') no-repeat center / contain;
}
.nav__links { display: flex; gap: 2rem; align-items: center; }
.nav__links a {
  font-size: var(--fs-small); color: var(--color-text-dim);
  letter-spacing: 0.02em; transition: color 0.2s var(--ease); position: relative;
}
.nav__links a:hover { color: var(--color-text); }
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: -4px; height: 1px; width: 0;
  background: var(--color-accent); transition: width 0.25s var(--ease);
}
.nav__links a:hover::after { width: 100%; }
.nav__toggle { display: none; background: none; border: 0; color: var(--color-text); font-size: 1.5rem; cursor: pointer; }

/* =============================================================
   HERO / LANDING
   ============================================================= */
.hero { padding-block: clamp(2.5rem, 6vw, 5.5rem) clamp(1.5rem, 4vw, 3rem); text-align: left; }
.hero__title { font-size: var(--fs-hero); font-weight: var(--fw-light); max-width: 44rem; }
.hero__title strong { font-weight: var(--fw-med); }
.hero__sub { margin-top: 1.5rem; max-width: 52ch; color: var(--color-text-dim); font-size: 1.12rem; }

/* Three-column pillar grid */
.pillars {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--color-border);
  border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  overflow: hidden; margin-top: clamp(1.75rem, 4vw, 2.75rem);
}
.pillar {
  background: var(--color-bg-elev); padding: clamp(1.8rem, 3vw, 2.6rem);
  display: flex; flex-direction: column; gap: 0.9rem; min-height: 280px;
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
  position: relative;
}
.pillar:hover { background: var(--color-bg-elev-2); }
.pillar__num { font-family: var(--font-mono); font-size: var(--fs-mono); color: var(--color-text-faint); letter-spacing: 0.2em; }
.pillar__title {
  font-family: var(--font-display); font-size: 1.8rem; font-weight: var(--fw-med);
  display: flex; align-items: center; gap: 0.5rem; transition: color 0.2s var(--ease);
}
.pillar:hover .pillar__title { color: var(--color-accent); }
.pillar__desc { color: var(--color-text-dim); font-size: var(--fs-small); flex: 1; }
.pillar__arrow { font-family: var(--font-mono); color: var(--color-accent); font-size: var(--fs-small); opacity: 0; transform: translateX(-6px); transition: all var(--dur) var(--ease); }
.pillar:hover .pillar__arrow { opacity: 1; transform: translateX(0); }

/* =============================================================
   PAGE HEADER (interior pages)
   ============================================================= */
.page-head { padding-block: clamp(2rem, 5vw, 4rem) clamp(1.25rem, 2.5vw, 2rem); }
.page-head h1 { font-size: var(--fs-h1); font-weight: var(--fw-light); margin-top: 1rem; max-width: 32rem; }
.page-head h1 strong { font-weight: var(--fw-med); }
.page-head p { margin-top: 1.2rem; max-width: 56ch; color: var(--color-text-dim); }

/* =============================================================
   SPEC / DATA ROWS (markets-served)
   ============================================================= */
.specs { border-top: 1px solid var(--color-border); }
.spec-row {
  display: grid; grid-template-columns: 15rem 1fr; gap: 2rem;  /* 240px / 16 */
  padding-block: 1.8rem; border-bottom: 1px solid var(--color-border);
  align-items: start; transition: background 0.3s var(--ease);
}
.spec-row:hover { background: var(--color-bg-elev); }
.spec-row dt { font-family: var(--font-mono); font-size: var(--fs-small); letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent); }
.spec-row dd { color: var(--color-text); font-size: 1.05rem; }

/* =============================================================
   GENERIC CARD GRID
   ============================================================= */
.cards { display: grid; gap: 1px; background: var(--color-border); border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; }
.cards--2 { grid-template-columns: repeat(2, 1fr); }
.cards--3 { grid-template-columns: repeat(3, 1fr); }
.card { background: var(--color-bg-elev); padding: clamp(1.6rem, 3vw, 2.4rem); display: flex; flex-direction: column; gap: 0.8rem; transition: background var(--dur) var(--ease); }
.card:hover { background: var(--color-bg-elev-2); }
.card h3 { font-size: var(--fs-h3); }
.card p { color: var(--color-text-dim); font-size: var(--fs-small); }
.card-subline { font-family: var(--font-mono); font-size: var(--fs-mono); color: var(--color-text-faint); letter-spacing: 0.08em; margin-bottom: 0.4rem !important; }

/* =============================================================
   LOGO WALL
   ============================================================= */
.logo-wall {
  --logo-cols: 3;
  display: grid;
  grid-template-columns: repeat(var(--logo-cols), minmax(0, 1fr));
  grid-auto-rows: var(--logo-cell-h);
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.logo-cell {
  background: var(--color-bg-elev);
  height: var(--logo-cell-h);
  min-height: var(--logo-cell-h);
  max-height: var(--logo-cell-h);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1rem;
  overflow: hidden;
  transition: background var(--dur) var(--ease);
}
a.logo-cell:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
}
.logo-cell:hover { background: var(--color-bg-elev-2); }
.logo-cell img { max-height: 2.375rem; width: auto;  /* 38px / 16 */ filter: grayscale(1) brightness(1.6); opacity: 0.7; transition: all var(--dur) var(--ease); }
.logo-cell:hover img { filter: grayscale(0) brightness(1); opacity: 1; }
.logo-cell span {
  font-family: var(--font-display);
  color: var(--color-text-dim);
  font-size: clamp(0.8rem, 2.2vw, 1rem);
  line-height: 1.2;
  letter-spacing: 0.02em;
  text-align: center;
  max-width: 100%;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  overflow-wrap: anywhere;
  transition: color var(--dur) var(--ease);
}
.logo-cell:hover span { color: var(--color-text); }

/* =============================================================
   TEAM
   ============================================================= */
.team-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(17.5rem, 1fr)); gap: 2rem; }  /* 280px / 16 */
.member { display: flex; flex-direction: column; gap: 1rem; }
.member__photo {
  aspect-ratio: 4 / 5; background: var(--color-bg-elev);
  border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  overflow: hidden; display: flex; align-items: center; justify-content: center;
}
.member__photo img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(0.4); transition: filter var(--dur) var(--ease); }
.member:hover .member__photo img { filter: grayscale(0); }
.member__photo .placeholder { font-family: var(--font-display); font-size: 2.5rem; color: var(--color-text-faint); }
.member__name { font-family: var(--font-display); font-size: 1.2rem; font-weight: var(--fw-med); }
.member__title { font-family: var(--font-mono); font-size: var(--fs-mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-accent); }
.member__bio { color: var(--color-text-dim); font-size: var(--fs-small); }

/* =============================================================
   BADGES / COMING SOON
   ============================================================= */
.badge { display: inline-flex; align-items: center; gap: 0.5rem; font-family: var(--font-mono); font-size: var(--fs-mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--color-accent); border: 1px solid var(--color-border-bright); border-radius: 100px; padding: 0.35rem 0.85rem; }
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--color-accent); box-shadow: 0 0 8px var(--color-accent); animation: pulse 2s var(--ease) infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

.program { display: flex; gap: 1.2rem; padding-block: 1.6rem; border-bottom: 1px solid var(--color-border); }
.program__tag { font-family: var(--font-mono); font-size: var(--fs-mono); color: var(--color-text-faint); min-width: 90px; padding-top: 0.2rem; letter-spacing: 0.1em; }
.program h3 { font-size: var(--fs-h3); margin-bottom: 0.4rem; }
.program p { color: var(--color-text-dim); font-size: var(--fs-small); max-width: 60ch; }

/* =============================================================
   CONTACT
   ============================================================= */
.contact-block { display: flex; flex-direction: column; gap: 1.5rem; }
.contact-mail { font-family: var(--font-display); font-size: clamp(1.6rem, 4vw, 2.6rem); font-weight: var(--fw-light); color: var(--color-text); display: inline-flex; align-items: center; gap: 0.6rem; transition: color 0.2s var(--ease); width: fit-content; }
.contact-mail:hover { color: var(--color-accent); }
.contact-mail span { color: var(--color-accent); }

/* Contact form */
.contact-form { display: flex; flex-direction: column; gap: 1.5rem; max-width: 680px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.form-field { display: flex; flex-direction: column; gap: 0.45rem; }
.form-label {
  font-family: var(--font-mono); font-size: var(--fs-mono); letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--color-text-dim);
}
.form-label .req { color: var(--color-accent); margin-left: 0.15em; }
.form-input,
.form-select,
.form-textarea {
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  padding: 0.7rem 0.9rem;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
}
.form-input::placeholder,
.form-textarea::placeholder { color: var(--color-text-faint); }
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent-dim);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}
.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235b6672' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  padding-right: 2.4rem;
  cursor: pointer;
}
.form-select option { background: var(--color-bg-elev); }
.form-textarea { resize: vertical; min-height: 140px; }

.form-submit {
  align-self: flex-start;
  background: transparent;
  border: 1px solid var(--color-accent-dim);
  border-radius: var(--radius);
  color: var(--color-accent);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.14em;
  padding: 0.75rem 1.75rem;
  text-transform: uppercase;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.form-submit:hover:not(:disabled) {
  background: var(--color-accent-glow);
  border-color: var(--color-accent);
  box-shadow: 0 0 16px var(--color-accent-glow);
}
.form-submit:disabled { opacity: 0.5; cursor: not-allowed; }

.form-status {
  font-family: var(--font-mono); font-size: var(--fs-mono); letter-spacing: 0.1em;
  padding: 0.7rem 1rem; border-radius: var(--radius); border-left: 2px solid;
}
.form-status[hidden] { display: none; }
.form-status--success { color: #4ade80; border-color: #4ade80; background: rgba(74,222,128,0.07); }
.form-status--error   { color: #f87171; border-color: #f87171; background: rgba(248,113,113,0.07); }

#turnstile-widget { margin-top: 0.25rem; }

@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
  .form-submit { align-self: stretch; text-align: center; }
}

/* =============================================================
   FOOTER
   ============================================================= */
.footer { border-top: 1px solid var(--color-border); padding-block: 2rem; margin-top: var(--section-y); }
.footer__inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1.5rem; }
.footer__links { display: flex; gap: 1.5rem; }
.footer__links a { font-size: var(--fs-small); color: var(--color-text-dim); transition: color 0.2s var(--ease); }
.footer__links a:hover { color: var(--color-text); }
.footer small { color: var(--color-text-faint); font-family: var(--font-mono); font-size: var(--fs-mono); letter-spacing: 0.08em; }

/* =============================================================
   LEGAL / REGULATORY NOTICES
   ============================================================= */
.legal-notice {
  font-size: var(--fs-small);
  color: var(--color-text-faint);
  line-height: 1.7;
  max-width: 72ch;
}
.legal-notice h2 {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  font-weight: var(--fw-reg);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-dim);
  margin-bottom: 1.25rem;
}
.legal-notice p + p { margin-top: 0.9rem; }

/* =============================================================
   ENTRANCE ANIMATION (staggered reveal)
   ============================================================= */
[data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
[data-reveal].in { opacity: 1; transform: none; }
/* Fallback: if JS disabled, reveal everything */
.no-js [data-reveal] { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}
/* Above-fold content is always visible on first paint — never hide hero or
   page-head elements before JS runs; they still animate when .in is added. */
.hero [data-reveal],
.page-head [data-reveal] {
  opacity: 1;
  transform: none;
}

/* =============================================================
   RESPONSIVE
   ============================================================= */
@media (max-width: 860px) {
  .pillars, .cards--3, .cards--2 { grid-template-columns: 1fr; }
  .spec-row { grid-template-columns: 1fr; gap: 0.4rem; }
  .nav__links { position: absolute; top: 100%; left: 0; right: 0; z-index: 99; flex-direction: column; background: var(--color-bg-elev); padding: 0 var(--gutter); border-bottom: 0 solid var(--color-border); gap: 1.2rem; max-height: 0; overflow: hidden; opacity: 0; visibility: hidden; pointer-events: none; transition: max-height var(--dur) var(--ease), opacity var(--dur) var(--ease), padding var(--dur) var(--ease), visibility 0s var(--dur); }
  .nav__links.open { max-height: 50vh; padding: 1.5rem var(--gutter); border-bottom-width: 1px; opacity: 1; visibility: visible; pointer-events: auto; transition: max-height var(--dur) var(--ease), opacity var(--dur) var(--ease), padding var(--dur) var(--ease), visibility 0s; }
  .nav__toggle { display: block; }
}