/* ============================================================
   Kodiak57 — Production stylesheet
   Merged from the Kodiak57 Design System (tokens + base + UI
   kit). Liquid-glass, navy-and-graphite, Hanken Grotesk.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Hanken+Grotesk:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ---- Color tokens ---- */
:root {
  --navy-950: #0f1822;
  --navy-900: #1b2736;
  --navy-800: #243343;
  --navy-700: #324252;
  --navy-600: #45586b;
  --navy-500: #5c6f82;

  --blue-700: #1b4fb0;
  --blue-600: #2563eb;
  --blue-500: #3b82f6;
  --blue-400: #60a5fa;
  --blue-300: #93c5fd;
  --blue-200: #c4ddfd;
  --blue-100: #e4f0ff;

  --gray-50:  #f7f9fb;
  --gray-100: #eef2f6;
  --gray-200: #e1e7ee;
  --gray-300: #cbd4de;
  --gray-400: #9aa7b5;
  --gray-500: #6b7886;
  --gray-600: #4d5965;
  --gray-700: #374049;
  --white:    #ffffff;

  --green-500: #1f9d6b;
  --amber-500: #ffcb05;
  --red-500:   #dc4b4b;

  --color-bg:            var(--gray-50);
  --color-surface:       var(--white);
  --color-surface-sunken:var(--gray-100);
  --color-surface-navy:  var(--navy-900);

  --text-strong:  var(--navy-900);
  --text-body:    var(--navy-800);
  --text-muted:   var(--gray-500);
  --text-subtle:  var(--gray-400);
  --text-on-navy: var(--white);
  --text-on-accent: var(--navy-900);

  --color-primary:       var(--navy-900);
  --color-primary-hover: var(--navy-800);
  --graphite-700: #3b3f44;
  --graphite-600: #4f545a;
  --amber-600: #e6b700;
  --color-accent:        var(--amber-500);
  --color-accent-hover:  var(--amber-600);
  --color-accent-soft:   var(--gray-100);
  --color-link:          var(--amber-600);

  --border-subtle:  var(--gray-200);
  --border-default: var(--gray-300);
  --border-strong:  var(--gray-400);
  --ring-accent:    rgba(255, 203, 5, 0.35);

  --color-success: var(--green-500);
  --color-warning: var(--amber-500);
  --color-danger:  var(--red-500);

  --glass-light:        rgba(255, 255, 255, 0.62);
  --glass-light-strong: rgba(255, 255, 255, 0.78);
  --glass-light-border: rgba(255, 255, 255, 0.55);
  --glass-navy:         rgba(27, 39, 54, 0.55);
  --glass-navy-strong:  rgba(27, 39, 54, 0.72);
  --glass-navy-border:  rgba(255, 255, 255, 0.14);

  --bg-ambient:
    radial-gradient(900px 600px at 12% -10%, rgba(154,167,181,0.22), transparent 60%),
    radial-gradient(800px 620px at 100% 0%, rgba(27,39,54,0.06), transparent 55%),
    linear-gradient(180deg, #fbfcfe 0%, var(--gray-50) 100%);

  /* Typography */
  --font-sans: 'Hanken Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Hanken Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-extrabold: 800;

  --text-2xs: 0.6875rem;
  --text-xs:  0.75rem;
  --text-sm:  0.875rem;
  --text-base:1rem;
  --text-lg:  1.125rem;
  --text-xl:  1.375rem;
  --text-2xl: 1.75rem;
  --text-3xl: 2.25rem;
  --text-4xl: 3rem;
  --text-5xl: 4rem;
  --text-6xl: 5.25rem;

  --leading-tight: 1.05;
  --leading-snug: 1.2;
  --leading-normal: 1.5;
  --leading-relaxed: 1.65;

  --tracking-tighter: -0.03em;
  --tracking-tight: -0.015em;
  --tracking-normal: 0em;
  --tracking-wide: 0.04em;
  --tracking-caps: 0.12em;

  /* Spacing / radii / shadows / motion */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 2.5rem;
  --space-8: 3rem;
  --space-9: 4rem;
  --space-10: 5rem;
  --space-12: 7rem;

  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-2xl: 36px;
  --radius-pill: 999px;

  --shadow-xs: 0 1px 2px rgba(15, 24, 34, 0.06);
  --shadow-sm: 0 2px 8px rgba(15, 24, 34, 0.07);
  --shadow-md: 0 6px 20px rgba(15, 24, 34, 0.09);
  --shadow-lg: 0 16px 44px rgba(15, 24, 34, 0.13);
  --shadow-xl: 0 28px 70px rgba(15, 24, 34, 0.18);
  --shadow-glass: 0 8px 32px rgba(15, 24, 34, 0.14), inset 0 1px 0 rgba(255, 255, 255, 0.65);
  --shadow-glass-navy: 0 10px 36px rgba(15, 24, 34, 0.30), inset 0 1px 0 rgba(255, 255, 255, 0.12);

  --focus-ring: 0 0 0 3px var(--ring-accent);

  --blur-sm: 8px;
  --blur-md: 18px;
  --blur-lg: 32px;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 130ms;
  --dur-base: 220ms;
  --dur-slow: 360ms;
}

[data-theme="dark"] {
  --color-bg:             #0c1520;
  --color-surface:        var(--navy-900);
  --color-surface-sunken: var(--navy-950);
  --color-surface-navy:   var(--navy-950);

  --text-strong:    #edf2f7;
  --text-body:      #c8d3de;
  --text-muted:     var(--gray-400);
  --text-subtle:    var(--gray-500);
  --text-on-accent: var(--navy-900);

  --color-accent:       var(--amber-500);
  --color-accent-hover: var(--amber-600);
  --color-accent-soft:  rgba(255, 255, 255, 0.10);
  --color-link:         var(--amber-500);
  --ring-accent:        rgba(255, 203, 5, 0.35);

  --color-primary:       #2a3d52;
  --color-primary-hover: #324252;

  --border-subtle:  rgba(255, 255, 255, 0.08);
  --border-default: rgba(255, 255, 255, 0.14);
  --border-strong:  rgba(255, 255, 255, 0.26);

  --glass-light:        rgba(255, 255, 255, 0.07);
  --glass-light-strong: rgba(255, 255, 255, 0.11);
  --glass-light-border: rgba(255, 255, 255, 0.16);

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.40);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.45);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.50);
  --shadow-lg: 0 16px 44px rgba(0, 0, 0, 0.55);
  --shadow-xl: 0 28px 70px rgba(0, 0, 0, 0.60);
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.14);

  --bg-ambient:
    radial-gradient(900px 600px at 12% -10%, rgba(100,130,160,0.12), transparent 60%),
    radial-gradient(800px 620px at 100% 0%, rgba(255,255,255,0.03), transparent 55%),
    linear-gradient(180deg, #111d2b 0%, #0c1520 100%);
}

/* ---- Base / reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-weight: var(--weight-regular);
  color: var(--text-body);
  background: var(--bg-ambient);
  background-attachment: fixed;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color 400ms, color 400ms;
  position: relative;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { font: inherit; }

.k-eyebrow {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-accent);
}

/* ---- Buttons ---- */
.k57-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 42px; padding: 0 20px;
  font-family: var(--font-sans); font-size: var(--text-sm); font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-tight); line-height: 1;
  border-radius: var(--radius-md); border: 1px solid transparent;
  cursor: pointer; white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease-out), background var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.k57-btn:active { transform: scale(0.97); }
.k57-btn-sm { height: 34px; padding: 0 14px; border-radius: var(--radius-sm); gap: 6px; }
.k57-btn-lg { height: 52px; padding: 0 28px; font-size: var(--text-base); border-radius: var(--radius-lg); gap: 10px; }
.k57-btn-accent { background: var(--color-accent); color: var(--text-on-accent); box-shadow: 0 4px 14px rgba(15,24,34,0.20); }
.k57-btn-accent:hover { background: var(--color-accent-hover); }
.k57-btn-glass {
  background: var(--glass-light-strong); color: var(--text-strong);
  border: 1px solid var(--glass-light-border);
  -webkit-backdrop-filter: blur(var(--blur-md)) saturate(180%);
  backdrop-filter: blur(var(--blur-md)) saturate(180%);
  box-shadow: var(--shadow-glass);
}
.k57-btn-glass:hover { background: var(--glass-light); }

/* ---- Badge ---- */
.k57-badge {
  display: inline-flex; align-items: center; gap: 6px;
  height: 26px; padding: 0 12px; border-radius: var(--radius-pill);
  font-size: var(--text-xs); font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-tight); white-space: nowrap;
  background: var(--gray-200); color: var(--navy-800);
}
.k57-badge-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--gray-600); flex-shrink: 0; }

/* ---- Card ---- */
.k57-card-surface {
  border-radius: var(--radius-lg); padding: var(--space-5);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.k57-card-solid { background: var(--color-surface); border: 1px solid var(--border-subtle); box-shadow: var(--shadow-md); }
.k57-card-glass {
  background: var(--glass-light);
  -webkit-backdrop-filter: blur(var(--blur-md)) saturate(180%);
  backdrop-filter: blur(var(--blur-md)) saturate(180%);
  border: 1px solid var(--glass-light-border);
  box-shadow: var(--shadow-glass);
}

/* ---- Scroll-reveal animations ---- */
[data-anim] { opacity: 0; transition: opacity 0.65s ease, transform 0.65s ease; transition-delay: var(--anim-delay, 0ms); }
[data-anim="up"]    { transform: translateY(36px); }
[data-anim="left"]  { transform: translateX(-28px); }
[data-anim="right"] { transform: translateX(28px); }
[data-anim="scale"] { transform: scale(0.91); opacity: 0; }
[data-anim].k57-in  { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { [data-anim] { opacity: 1; transform: none; transition: none; } }

/* ---- Theme-switch icon visibility ---- */
.k57-sun  { display: none;  align-items: center; justify-content: center; }
.k57-moon { display: flex;  align-items: center; justify-content: center; }
[data-theme="dark"] .k57-sun  { display: flex; }
[data-theme="dark"] .k57-moon { display: none; }

/* ---- Logo swap ---- */
.k57-logo-dark  { display: none; }
[data-theme="dark"] .k57-logo-light { display: none; }
[data-theme="dark"] .k57-logo-dark  { display: block; }

/* ---- Nav glass ---- */
.k57-nav-pill {
  background: rgba(255,255,255,0.78); border: 1px solid rgba(255,255,255,0.55);
  box-shadow: 0 8px 32px rgba(15,24,34,0.14), inset 0 1px 0 rgba(255,255,255,0.65);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  backdrop-filter: blur(18px) saturate(180%);
}
[data-theme="dark"] .k57-nav-pill {
  background: rgba(15,24,34,0.88); border: 1px solid rgba(255,255,255,0.10);
  box-shadow: 0 8px 32px rgba(0,0,0,0.50), inset 0 1px 0 rgba(255,255,255,0.07);
}

/* ---- CTA glass panel ---- */
.k57-cta-panel {
  background: rgba(255,255,255,0.62); border: 1px solid rgba(255,255,255,0.55);
  box-shadow: 0 8px 32px rgba(15,24,34,0.14), inset 0 1px 0 rgba(255,255,255,0.65);
  -webkit-backdrop-filter: blur(32px) saturate(190%);
  backdrop-filter: blur(32px) saturate(190%);
}
[data-theme="dark"] .k57-cta-panel {
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.09);
  box-shadow: 0 8px 32px rgba(0,0,0,0.35);
}

/* ---- Splash screen ---- */
#k57-splash {
  position: fixed; inset: 0; z-index: 9999;
  display: flex; align-items: center; justify-content: center;
  background: var(--navy-900);
  transition: opacity 0.55s var(--ease-out), visibility 0.55s;
}
#k57-splash.k57-out { opacity: 0; visibility: hidden; pointer-events: none; }
#k57-splash svg { width: clamp(100px, 14vw, 180px); height: clamp(100px, 14vw, 180px); }
.loader-progress-shadow { fill: none; stroke: rgba(255,255,255,0.10); stroke-width: 36; }
.loader-progress {
  fill: none; stroke: #fff; stroke-width: 36; stroke-linecap: round;
  stroke-dasharray: 1320 4191;
  transform-box: fill-box; transform-origin: center;
  animation: k57SpinRing 1.1s linear infinite;
}
@keyframes k57SpinRing { to { transform: rotate(360deg); } }

/* ---- Hero ---- */
@keyframes k57FadeUp { from { opacity: 0; transform: translateY(32px); } to { opacity: 1; transform: translateY(0); } }
@keyframes k57WordIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

.k57-word-pill {
  display: inline-flex; align-items: center; justify-content: center;
  position: relative; border-radius: var(--radius-md);
  padding: 4px var(--space-4) 6px;
  background: var(--navy-900); box-shadow: var(--shadow-sm);
  vertical-align: middle; line-height: inherit;
  transition: background var(--dur-slow) var(--ease-out), box-shadow var(--dur-slow) var(--ease-out);
}
[data-theme="dark"] .k57-word-pill { background: var(--white); box-shadow: var(--shadow-md); }
.k57-word-inner {
  display: inline-block; white-space: nowrap;
  animation: k57WordIn 0.45s cubic-bezier(0.22,1,0.36,1) both;
  color: var(--white); letter-spacing: -0.02em; font-weight: 700;
}
[data-theme="dark"] .k57-word-inner { color: var(--navy-900); }

/* ---- Toggle button ---- */
.k57-toggle {
  width: 36px; height: 36px; border-radius: 999px; border: none;
  background: transparent; cursor: pointer; padding: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-body); transition: background 140ms;
}
.k57-toggle:hover { background: var(--color-accent-soft); }

/* ---- Ambient dither background ---- */
#k57-dither {
  position: fixed; inset: 0; z-index: 0;
  pointer-events: none; overflow: hidden;
  will-change: transform;
  transition: background-color 600ms;
}
#k57-dither-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%; display: block;
  transition: opacity 700ms;
}
.k57-dither-glow {
  position: absolute; inset: 0; opacity: 0.9; transition: opacity 700ms;
  background-image:
    radial-gradient(65% 48% at 14% 6%, rgba(122,154,184,.16), transparent 62%),
    radial-gradient(52% 42% at 86% 92%, rgba(180,210,235,.12), transparent 58%);
  mix-blend-mode: multiply;
}
[data-theme="dark"] .k57-dither-glow {
  background-image:
    radial-gradient(65% 48% at 14% 6%, rgba(45,77,110,.45), transparent 62%),
    radial-gradient(52% 42% at 86% 92%, rgba(15,30,50,.35), transparent 58%);
  mix-blend-mode: screen;
}
.k57-dither-vignette {
  position: absolute; inset: 0;
  background: radial-gradient(130% 80% at 50% 50%, transparent 48%, rgba(0,0,0,.17) 100%);
}
.k57-dither-shine {
  position: absolute; inset: 0; transition: opacity 700ms;
  background: linear-gradient(180deg, rgba(255,255,255,.08) 0%, transparent 24%);
}

/* ---- Page content sits above the dither layer ---- */
.k57-page-content { position: relative; z-index: 1; }

/* ---- Ruler carousel ---- */
.k57-ruler-row { padding: 0 12px; }
.k57-ruler-line { position: absolute; width: 2px; border-radius: 1px; }
.k57-ruler-viewport {
  position: relative; display: flex; align-items: center; gap: 56px;
  height: 132px; overflow-x: hidden; overflow-y: hidden;
  scrollbar-width: none; -ms-overflow-style: none;
}
.k57-ruler-viewport::-webkit-scrollbar { display: none; }
.k57-ruler-item {
  flex: 0 0 auto; border: none; background: transparent; cursor: pointer;
  font-family: var(--font-display); font-weight: 700; letter-spacing: -0.02em;
  font-size: clamp(2rem, 5vw, 3.5rem); line-height: 1; white-space: nowrap;
  color: rgba(255,255,255,0.32); transform: scale(0.74); opacity: 0.5;
  transition: transform 0.45s cubic-bezier(0.22,1,0.36,1), opacity 0.45s ease, color 0.45s ease;
  padding: 0; text-align: center;
}
.k57-ruler-item.is-active { color: #fff; transform: scale(1); opacity: 1; }
.k57-ruler-controls { display: flex; align-items: center; justify-content: center; gap: 18px; margin-top: 34px; }
.k57-ruler-arrow {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.14); background: rgba(255,255,255,0.05);
  color: var(--amber-500); cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.k57-ruler-arrow:hover { background: rgba(255,255,255,0.1); }
.k57-ruler-counter { display: flex; align-items: center; gap: 6px; min-width: 56px; justify-content: center; }
.k57-ruler-counter span { font-size: 0.875rem; font-weight: 600; font-variant-numeric: tabular-nums; }
.k57-ruler-counter .k57-ruler-current { color: rgba(255,255,255,0.8); }
.k57-ruler-counter .k57-ruler-sep { color: rgba(255,255,255,0.35); font-weight: 400; }
.k57-ruler-counter .k57-ruler-total { color: rgba(255,255,255,0.45); }

/* ---- Contact page ---- */
.k57-nav-fixed {
  position: fixed; top: 16px; left: 50%; transform: translateX(-50%);
  width: calc(100% - 48px); max-width: 1200px; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 14px 0 20px; height: 60px;
  border-radius: var(--radius-pill); box-shadow: var(--shadow-sm);
  transition: background 400ms, border-color 400ms;
}
.k57-page-wrap {
  min-height: 100vh; display: flex; flex-direction: column;
  align-items: center; justify-content: center; padding: 100px 24px 80px;
}
.k57-contact-card {
  width: 100%; max-width: 660px;
  background: var(--glass-light-strong);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--glass-light-border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-glass);
  padding: 52px 52px 56px;
  animation: k57Up 0.65s cubic-bezier(0.22,1,0.36,1) 0.15s both;
}
[data-theme="dark"] .k57-contact-card { background: var(--glass-navy-strong); border-color: var(--glass-navy-border); }
@keyframes k57Up { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }

.k57-eyebrow-muted { font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 10px; }
.k57-form-title { font-size: 2rem; font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; color: var(--text-strong); margin-bottom: 8px; }
.k57-form-sub { font-size: 0.9375rem; line-height: 1.65; color: var(--text-muted); margin-bottom: 36px; }

.k57-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.k57-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.k57-label { font-size: 0.8125rem; font-weight: 600; color: var(--text-strong); letter-spacing: 0.01em; }
.k57-opt { font-weight: 400; color: var(--text-muted); margin-left: 3px; }

.k57-input, .k57-select, .k57-textarea {
  width: 100%; padding: 12px 14px;
  font-family: var(--font-sans); font-size: 0.9375rem; color: var(--text-strong);
  background: var(--color-surface);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-md);
  outline: none; appearance: none;
  transition: border-color 180ms, box-shadow 180ms;
}
[data-theme="dark"] .k57-input, [data-theme="dark"] .k57-select, [data-theme="dark"] .k57-textarea {
  background: rgba(15,24,36,0.6); border-color: var(--border-default);
}
.k57-input::placeholder, .k57-textarea::placeholder { color: var(--text-subtle); }
.k57-input:focus, .k57-select:focus, .k57-textarea:focus { border-color: var(--color-accent); box-shadow: 0 0 0 3px var(--ring-accent); }
.k57-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='%236b7886' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center; padding-right: 40px; cursor: pointer;
}
.k57-textarea { resize: vertical; min-height: 126px; line-height: 1.6; }

.k57-submit {
  width: 100%; margin-top: 10px; padding: 15px 24px;
  font-family: var(--font-sans); font-size: 0.9375rem; font-weight: 600;
  color: var(--text-on-accent); background: var(--color-accent);
  border: none; border-radius: var(--radius-md); cursor: pointer;
  box-shadow: 0 4px 14px rgba(15,24,34,0.20);
  transition: background 350ms, color 350ms, transform 120ms, box-shadow 180ms;
}
.k57-submit:hover { background: var(--color-accent-hover); box-shadow: var(--shadow-lg); transform: translateY(-1px); }
.k57-submit:active { transform: scale(0.97); }

.k57-success { display: none; flex-direction: column; align-items: center; text-align: center; gap: 14px; padding: 16px 0; }
.k57-success.show { display: flex; }
.k57-check { width: 52px; height: 52px; border-radius: 50%; background: var(--navy-900); display: flex; align-items: center; justify-content: center; }
.k57-success-title { font-size: 1.5rem; font-weight: 700; color: var(--text-strong); letter-spacing: -0.015em; }
.k57-success-body { font-size: 0.9375rem; color: var(--text-muted); line-height: 1.65; max-width: 38ch; }
.k57-back { display: inline-flex; align-items: center; gap: 5px; font-size: 0.875rem; font-weight: 500; color: var(--text-muted); margin-top: 4px; transition: color 150ms; }
.k57-back:hover { color: var(--text-strong); }

/* ================================================================
   Hamburger + mobile nav drawer
   ================================================================ */

.k57-hamburger {
  display: none;
  width: 36px; height: 36px;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
  border: none; background: transparent; cursor: pointer; padding: 6px;
  border-radius: var(--radius-sm); color: var(--text-body);
  transition: background var(--dur-fast);
}
.k57-hamburger:hover { background: var(--color-accent-soft); }
.k57-hamburger span {
  display: block; width: 18px; height: 2px;
  background: currentColor; border-radius: 2px;
  transition: transform 0.25s var(--ease-out), opacity 0.2s ease, width 0.2s ease;
  transform-origin: center;
}
.k57-hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.k57-hamburger.is-open span:nth-child(2) { opacity: 0; width: 0; }
.k57-hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.k57-mobile-menu {
  position: fixed;
  top: 88px; left: 0; right: 0;
  z-index: 48;
  padding: 8px 24px 28px;
  background: var(--glass-light-strong);
  -webkit-backdrop-filter: blur(24px) saturate(200%);
  backdrop-filter: blur(24px) saturate(200%);
  border-bottom: 1px solid var(--glass-light-border);
  box-shadow: var(--shadow-lg);
  display: flex; flex-direction: column;
  opacity: 0; transform: translateY(-10px);
  pointer-events: none; visibility: hidden;
  transition: opacity 0.22s var(--ease-out), transform 0.22s var(--ease-out), visibility 0.22s;
}
[data-theme="dark"] .k57-mobile-menu {
  background: rgba(15, 24, 34, 0.96);
  border-bottom-color: rgba(255,255,255,0.08);
}
.k57-mobile-menu.is-open {
  opacity: 1; transform: translateY(0);
  pointer-events: auto; visibility: visible;
}

.k57-mobile-link {
  display: block; padding: 16px 4px;
  font-size: 1.0625rem; font-weight: 600;
  color: var(--text-strong);
  border-bottom: 1px solid var(--border-subtle);
  transition: color var(--dur-fast);
}
.k57-mobile-link:first-child { border-top: 1px solid var(--border-subtle); }
.k57-mobile-link:hover { color: var(--color-accent); }

.k57-mobile-menu-cta { margin-top: 24px; }
.k57-mobile-menu-cta .k57-btn { width: 100%; justify-content: center; }

@media (max-width: 768px) {
  .k57-hamburger { display: flex; }
}

/* ================================================================
   Responsive layout
   ================================================================ */

/* Fluid hero heading — overrides the inline font-size */
.k57-hero-h1 { font-size: clamp(1.875rem, 8vw, 3rem) !important; }

/* Cap word-pill so it can't overflow on narrow screens */
.k57-word-pill { max-width: calc(100vw - 48px); }

/* ---- Tablet + mobile (≤ 768px) ---- */
@media (max-width: 768px) {
  /* Hide middle nav links; logo + toggle + CTA remain */
  .k57-nav-links  { display: none !important; }

  /* 3-column grids → single column */
  .k57-grid-3     { grid-template-columns: 1fr !important; gap: 16px !important; }
  .k57-grid-stats { grid-template-columns: 1fr !important; gap: 16px !important; }

  /* Hide decorative step-connector line */
  .k57-connector  { display: none !important; }
}

/* ---- Mobile (≤ 640px) ---- */
@media (max-width: 640px) {
  /* Hide nav CTA so the nav pill doesn't overflow */
  .k57-nav-cta    { display: none !important; }

  /* 2-column grids → single column */
  .k57-grid-2     { grid-template-columns: 1fr !important; gap: 24px !important; }

  /* Problem pills sub-grid */
  .k57-grid-problem-pills { grid-template-columns: 1fr !important; }
  .k57-span-2     { grid-column: span 1 !important; }

  /* CTA panel */
  .k57-cta-panel  { padding: 40px 24px !important; border-radius: 24px !important; }

  /* Contact card + page wrapper */
  .k57-contact-card { padding: 32px 20px 40px !important; }
  .k57-page-wrap    { padding: 100px 16px 60px !important; }

  /* Contact form 2-col row → 1 col */
  .k57-row        { grid-template-columns: 1fr !important; }

  /* Footer: stack logo block + copyright */
  .k57-footer-inner {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 10px !important;
  }
}