/* ===== TOKENS ===== */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);

  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem;
  --space-5: 1.25rem; --space-6: 1.5rem; --space-8: 2rem; --space-10: 2.5rem;
  --space-12: 3rem; --space-16: 4rem; --space-20: 5rem; --space-24: 6rem; --space-32: 8rem;

  --radius-sm: 0.375rem; --radius-md: 0.5rem; --radius-lg: 0.75rem; --radius-xl: 1rem; --radius-full: 9999px;
  --transition-interactive: 200ms cubic-bezier(0.16, 1, 0.3, 1);

  --content-default: 1180px;

  --font-display: 'Cabinet Grotesk', 'Inter', system-ui, sans-serif;
  --font-body: 'Satoshi', 'Inter', system-ui, sans-serif;
}

/* LIGHT */
:root, [data-theme="light"] {
  --color-bg: #f6f8fb;
  --color-surface: #ffffff;
  --color-surface-2: #eef3f9;
  --color-surface-offset: #e6edf6;
  --color-border: #d6e0ec;
  --color-divider: #e2e9f2;

  --color-text: #0f1f33;
  --color-text-muted: #5a6b80;
  --color-text-faint: #9aa9bb;
  --color-text-inverse: #f6f8fb;

  --color-primary: #1668c4;        /* clean professional blue */
  --color-primary-hover: #1156a6;
  --color-primary-active: #0d3f7a;
  --color-primary-soft: #e4eefb;
  --color-accent: #18b3d6;         /* water/cyan accent */

  --shadow-sm: 0 1px 2px rgba(15,31,51,0.06);
  --shadow-md: 0 6px 20px rgba(15,31,51,0.08);
  --shadow-lg: 0 18px 48px rgba(15,31,51,0.14);
}

/* DARK */
[data-theme="dark"] {
  --color-bg: #0a1320;
  --color-surface: #101d30;
  --color-surface-2: #16263d;
  --color-surface-offset: #1a2e48;
  --color-border: #243a58;
  --color-divider: #1c2e46;

  --color-text: #e6eef8;
  --color-text-muted: #93a6bf;
  --color-text-faint: #5f748f;
  --color-text-inverse: #0a1320;

  --color-primary: #4f9bee;
  --color-primary-hover: #6fb0f5;
  --color-primary-active: #8bc1f8;
  --color-primary-soft: #15273f;
  --color-accent: #36c6e6;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-md: 0 6px 20px rgba(0,0,0,0.45);
  --shadow-lg: 0 18px 48px rgba(0,0,0,0.55);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0a1320; --color-surface: #101d30; --color-surface-2: #16263d;
    --color-surface-offset: #1a2e48; --color-border: #243a58; --color-divider: #1c2e46;
    --color-text: #e6eef8; --color-text-muted: #93a6bf; --color-text-faint: #5f748f;
    --color-text-inverse: #0a1320; --color-primary: #4f9bee; --color-primary-hover: #6fb0f5;
    --color-primary-active: #8bc1f8; --color-primary-soft: #15273f; --color-accent: #36c6e6;
  }
}

/* ===== BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-text-size-adjust: none; text-size-adjust: none;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility; scroll-behavior: smooth; scroll-padding-top: 5rem;
}
body {
  min-height: 100dvh; line-height: 1.6; font-family: var(--font-body);
  font-size: var(--text-base); color: var(--color-text); background: var(--color-bg);
}
img, picture, svg { display: block; max-width: 100%; height: auto; }
ul[role="list"], ol[role="list"] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }
h1,h2,h3,h4 { text-wrap: balance; line-height: 1.1; font-family: var(--font-display); font-weight: 800; letter-spacing: -0.01em; }
p { text-wrap: pretty; }
a { color: inherit; }
button { cursor: pointer; background: none; border: none; }
::selection { background: var(--color-primary); color: #fff; }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}
a, button, input, textarea, select {
  transition: color var(--transition-interactive), background var(--transition-interactive),
    border-color var(--transition-interactive), box-shadow var(--transition-interactive), transform var(--transition-interactive);
}
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link:focus { position: fixed; top: var(--space-3); left: var(--space-3); width: auto; height: auto; clip: auto; background: var(--color-primary); color:#fff; padding: var(--space-2) var(--space-4); border-radius: var(--radius-md); z-index: 200; }

.container { width: 100%; max-width: var(--content-default); margin-inline: auto; padding-inline: var(--space-5); }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  font-weight: 700; font-size: var(--text-sm); text-decoration: none; white-space: nowrap;
  padding: var(--space-3) var(--space-5); border-radius: var(--radius-full); border: 1.5px solid transparent;
}
.btn--lg { padding: var(--space-4) var(--space-8); font-size: var(--text-base); }
.btn--block { width: 100%; }
.btn--primary { background: var(--color-primary); color: #fff; box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--color-primary-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--ghost { border-color: var(--color-border); color: var(--color-text); background: var(--color-surface); }
.btn--ghost:hover { border-color: var(--color-primary); color: var(--color-primary); transform: translateY(-2px); }

.eyebrow {
  font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--color-primary); margin-bottom: var(--space-3);
}
.accent { color: var(--color-primary); }

/* ===== HEADER ===== */
.header {
  position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(12px); border-bottom: 1px solid transparent; transition: border-color .3s, box-shadow .3s;
}
.header--scrolled { border-bottom-color: var(--color-divider); box-shadow: var(--shadow-sm); }
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); min-height: 4.5rem; }
.brand { display: inline-flex; align-items: center; text-decoration: none; color: var(--color-text); }
.brand__logo { height: 1.9rem; width: auto; }

.nav { display: flex; gap: var(--space-6); }
.nav a { text-decoration: none; color: var(--color-text-muted); font-size: var(--text-sm); font-weight: 500; }
.nav a:hover { color: var(--color-primary); }
.header__actions { display: flex; align-items: center; gap: var(--space-3); }

.menu-toggle { display: none; flex-direction: column; gap: 5px; padding: var(--space-2); }
.menu-toggle span { width: 22px; height: 2px; background: var(--color-text); border-radius: 2px; transition: var(--transition-interactive); }
.mobile-nav { display: none; flex-direction: column; gap: var(--space-2); padding: var(--space-4) var(--space-5) var(--space-6); border-top: 1px solid var(--color-divider); background: var(--color-surface); }
.mobile-nav a { text-decoration: none; color: var(--color-text); padding: var(--space-3) 0; font-weight: 500; }
.mobile-nav .btn { margin-top: var(--space-2); }

/* ===== HERO ===== */
.hero { padding-block: clamp(var(--space-16), 9vw, var(--space-32)); }
.hero__inner { display: flex; justify-content: center; text-align: center; }
.hero__copy { max-width: 60ch; }
.hero h1 { font-size: var(--text-2xl); margin-bottom: var(--space-5); }
.hero__lede { font-size: var(--text-lg); color: var(--color-text-muted); max-width: 46ch; margin-inline: auto; margin-bottom: var(--space-8); }
.hero__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); margin-bottom: var(--space-8); }
.hero__badges { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-4); }
.hero__badges li { font-size: var(--text-sm); color: var(--color-text-muted); display: flex; align-items: center; gap: var(--space-2); }
.hero__badges li::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--color-accent); }

/* ===== TRUST STRIP ===== */
.trust { border-block: 1px solid var(--color-divider); background: var(--color-surface); }
.trust__inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); padding-block: var(--space-8); }
.trust__item { display: flex; flex-direction: column; gap: 2px; text-align: center; }
.trust__item strong { font-family: var(--font-display); font-size: var(--text-lg); color: var(--color-primary); }
.trust__item span { font-size: var(--text-sm); color: var(--color-text-muted); }

/* ===== SECTIONS ===== */
.section { padding-block: clamp(var(--space-16), 8vw, var(--space-32)); }
.section--alt { background: var(--color-surface); }
.section__head { max-width: 56ch; margin-bottom: clamp(var(--space-8), 4vw, var(--space-12)); }
.section__head--center { max-width: 60ch; margin-inline: auto; text-align: center; }
.section__head--center .btn { margin-top: var(--space-6); }
.section__head h2 { font-size: var(--text-xl); margin-bottom: var(--space-3); }
.section__lede { color: var(--color-text-muted); font-size: var(--text-base); }

/* SERVICES */
.services-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(var(--space-5), 3vw, var(--space-8)); }
.service-card {
  background: var(--color-bg); border: 1px solid var(--color-divider); border-radius: var(--radius-xl);
  overflow: hidden; box-shadow: var(--shadow-sm); transition: transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.section--alt .service-card { background: var(--color-surface); }
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.service-card__body { padding: clamp(var(--space-5), 3vw, var(--space-8)); }
.service-card__body h3 { font-size: var(--text-lg); margin-bottom: var(--space-3); }
.service-card__body p { color: var(--color-text-muted); margin-bottom: var(--space-5); }

.ticks { display: flex; flex-direction: column; gap: var(--space-2); }
.ticks li { position: relative; padding-left: var(--space-6); font-size: var(--text-sm); color: var(--color-text); }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: 0.45em; width: 14px; height: 8px;
  border-left: 2px solid var(--color-primary); border-bottom: 2px solid var(--color-primary);
  transform: rotate(-45deg);
}
.ticks--lg li { font-size: var(--text-base); margin-bottom: var(--space-2); }

/* COMMERCIAL */
.commercial__inner { max-width: 72ch; }
.commercial__copy h2 { font-size: var(--text-xl); margin-bottom: var(--space-4); }
.commercial__copy > p { color: var(--color-text-muted); margin-bottom: var(--space-6); }
.commercial__copy .btn { margin-top: var(--space-8); }

/* PROCESS */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); counter-reset: step; }
.step { background: var(--color-bg); border: 1px solid var(--color-divider); border-radius: var(--radius-lg); padding: var(--space-6); }
.section--alt .step { background: var(--color-surface-2); }
.step__num {
  display: inline-flex; align-items: center; justify-content: center; width: 2.5rem; height: 2.5rem;
  border-radius: var(--radius-full); background: var(--color-primary); color: #fff; font-family: var(--font-display);
  font-weight: 800; margin-bottom: var(--space-4);
}
.step h3 { font-size: var(--text-lg); margin-bottom: var(--space-2); }
.step p { font-size: var(--text-sm); color: var(--color-text-muted); }

/* QUOTE */
.quote { background: var(--color-surface); }
.quote__inner { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(var(--space-8), 5vw, var(--space-16)); align-items: start; }
.quote__copy h2 { font-size: var(--text-xl); margin-bottom: var(--space-4); }
.quote__copy > p { color: var(--color-text-muted); margin-bottom: var(--space-6); }
.quote__contact { display: flex; flex-direction: column; gap: var(--space-4); }
.quote__contact li { display: flex; flex-direction: column; gap: 2px; }
.quote__label { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-faint); font-weight: 700; }
.quote__contact a { color: var(--color-primary); text-decoration: none; font-weight: 600; }
.quote__contact a:hover { text-decoration: underline; }

.quote__form {
  background: var(--color-bg); border: 1px solid var(--color-divider); border-radius: var(--radius-xl);
  padding: clamp(var(--space-6), 4vw, var(--space-10)); box-shadow: var(--shadow-sm); display: flex; flex-direction: column; gap: var(--space-4);
}
.field { display: flex; flex-direction: column; gap: var(--space-2); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.field label, .field legend { font-size: var(--text-sm); font-weight: 600; }
.field input, .field select, .field textarea {
  width: 100%; padding: var(--space-3) var(--space-4); border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md); background: var(--color-surface); color: var(--color-text); font-size: var(--text-base);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-soft); }
.field textarea { resize: vertical; }
.field--checks { gap: var(--space-3); }
.field--checks legend { margin-bottom: var(--space-1); }
.check { display: flex; align-items: center; gap: var(--space-2); font-size: var(--text-sm); font-weight: 400; cursor: pointer; }
.check input { width: auto; }
.form-note { font-size: var(--text-xs); color: var(--color-text-muted); text-align: center; }

/* FOOTER */
.footer { background: var(--color-surface-2); border-top: 1px solid var(--color-divider); padding-block: var(--space-12) var(--space-6); margin-top: 0; }
.footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-8); align-items: center; padding-bottom: var(--space-8); }
.footer__brand { display: flex; flex-direction: column; gap: var(--space-3); align-items: flex-start; }
.footer__logo { height: 3rem; width: auto; }
.footer__tag { font-size: var(--text-sm); color: var(--color-text-muted); }
.footer__links { display: flex; flex-wrap: wrap; gap: var(--space-5); }
.footer__links a { text-decoration: none; color: var(--color-text-muted); font-size: var(--text-sm); }
.footer__links a:hover { color: var(--color-primary); }
.footer__legal { border-top: 1px solid var(--color-divider); padding-top: var(--space-5); display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-2); }
.footer__legal p { font-size: var(--text-xs); color: var(--color-text-faint); }
.footer__credit a { color: var(--color-primary); text-decoration: none; font-weight: 600; }
.footer__credit a:hover { text-decoration: underline; }

/* REVEAL */
[data-reveal] { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s cubic-bezier(0.16,1,0.3,1); }
[data-reveal].is-visible { opacity: 1; transform: none; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .nav, .header__cta { display: none; }
  .menu-toggle { display: flex; }
  .menu-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle.is-open span:nth-child(2) { opacity: 0; }
  .menu-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .mobile-nav.is-open { display: flex; }
  .quote__inner { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .trust__inner { grid-template-columns: 1fr 1fr; gap: var(--space-5); }
  .steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .field-row { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
}