/* ==========================================================================
   Camball Strategies — One-Pager
   Hand-rolled CSS, no framework, no build step.
   ========================================================================== */

/* --- 1. Design tokens ---------------------------------------------------- */
:root {
  /* Brand palette — extracted from CS_LOGO brand swatch (2026-10-14).
     Soft end → deep end, light purple to periwinkle blue. */
  --c-blue-1: #92B8FF;       /* sky periwinkle */
  --c-blue-2: #ADCEFF;       /* pale ice */
  --c-blue-3: #C9E4FF;       /* near-white blue tint */
  --c-purple-1: #B29AE8;     /* soft lavender */
  --c-purple-2: #A586E4;     /* mid lavender */
  --c-purple-3: #9470DC;     /* deep brand purple */

  /* Functional aliases */
  --c-ink: #0E0E12;          /* near-black for body text */
  --c-ink-soft: #3A3A45;     /* secondary text */
  --c-ink-muted: #6B6B78;    /* tertiary / metadata */
  --c-line: #E7E5F1;         /* hairline borders on white */
  --c-paper: #FFFFFF;        /* page background */
  --c-paper-warm: #FBFAFE;   /* off-white for alternating sections */
  --c-paper-deep: #0B0B12;   /* near-black for dark sections */

  --c-accent: var(--c-purple-2);
  --c-accent-strong: var(--c-purple-3);
  --c-accent-soft: var(--c-blue-3);

  /* Type */
  --ff-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --ff-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; /* same family, weight/size carries display */

  /* Layout */
  --w-max: 1240px;
  --w-text: 68ch;
  --space-section: clamp(5rem, 10vw, 8.5rem);
  --space-block: clamp(2.5rem, 5vw, 4rem);

  /* Motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 220ms;
  --dur: 480ms;
  --dur-slow: 800ms;

  /* Radius */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --r-xl: 32px;
}

/* --- 2. Reset + base ------------------------------------------------------ */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  font-family: var(--ff-sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--c-ink);
  background: var(--c-paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv11', 'ss01', 'ss03'; /* Inter display variants */
}

img, picture, svg { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--c-accent-strong);
  outline-offset: 3px;
  border-radius: 4px;
}

button { font: inherit; cursor: pointer; }

/* --- 3. Typography -------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--ff-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin: 0 0 0.4em;
  color: var(--c-ink);
}

h1 { font-size: clamp(2.4rem, 6vw, 4.6rem); font-weight: 700; letter-spacing: -0.035em; }
h2 { font-size: clamp(2rem, 4.5vw, 3.4rem); letter-spacing: -0.03em; }
h3 { font-size: clamp(1.4rem, 2.4vw, 1.8rem); letter-spacing: -0.015em; }
h4 { font-size: 1.1rem; font-weight: 600; letter-spacing: 0; }

p { margin: 0 0 1em; max-width: var(--w-text); }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-accent-strong);
  margin-bottom: 1.2rem;
}

.lead {
  font-size: clamp(1.1rem, 1.6vw, 1.25rem);
  color: var(--c-ink-soft);
  max-width: 56ch;
  line-height: 1.55;
}

.section-head { margin-bottom: var(--space-block); max-width: 60ch; }
.section-head .lead { margin-top: 0.4rem; }

/* --- 4. Layout primitives ------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--w-max);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.section {
  position: relative;
  padding-block: var(--space-section);
  overflow: hidden;
}

.section--paper     { background: var(--c-paper); color: var(--c-ink); }
.section--warm      { background: var(--c-paper-warm); color: var(--c-ink); }
.section--ink       { background: var(--c-paper-deep); color: #F4F3FA; }
.section--ink h1,
.section--ink h2,
.section--ink h3,
.section--ink h4    { color: #FFFFFF; }
.section--ink .eyebrow { color: var(--c-purple-1); }
.section--ink .lead { color: rgba(255,255,255,0.78); }
.section--ink .service__copy li { color: rgba(255,255,255,0.88); }
.section--ink .service__copy li strong { color: #FFFFFF; }

/* Section with a background image: subtle, low contrast, plenty of room for text */
.section--bg {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  isolation: isolate;
}
.section--bg::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg,
    rgba(255,255,255,0.55) 0%,
    rgba(255,255,255,0.78) 50%,
    rgba(255,255,255,0.55) 100%);
  z-index: -1;
}
.section--ink.section--bg::before {
  background: linear-gradient(180deg,
    rgba(11,11,18,0.62) 0%,
    rgba(11,11,18,0.78) 50%,
    rgba(11,11,18,0.62) 100%);
}

.section--bg-warm::before {
  background: linear-gradient(180deg,
    rgba(251,250,254,0.55) 0%,
    rgba(251,250,254,0.78) 50%,
    rgba(251,250,254,0.55) 100%);
}

/* --- 5. Top nav ----------------------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.78);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--c-line);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 92px;
}
.nav__brand img { height: 70px; width: auto; display: block; }
.nav__links {
  display: flex;
  gap: 1.6rem;
  list-style: none;
  margin: 0; padding: 0;
  font-size: 0.88rem;
  font-weight: 500;
}
.nav__links a {
  color: var(--c-ink);
  position: relative;
  padding-block: 0.3rem;
  transition: color var(--dur-fast) var(--ease-out);
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--c-accent-strong);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-fast) var(--ease-out);
}
.nav__links a:hover { color: var(--c-accent-strong); }
.nav__links a:hover::after { transform: scaleX(1); }
.nav__cta {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.1rem;
  border-radius: 999px;
  background: var(--c-ink);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.nav__cta:hover { background: var(--c-accent-strong); transform: translateY(-1px); }

@media (max-width: 720px) {
  .nav__links { display: none; }
  .nav__cta { padding: 0.5rem 0.9rem; font-size: 0.85rem; }
}
@media (max-width: 640px) {
  /* On small screens, the wide lockup + nav CTA collide. Hide the
     CTA — the contact section in the page body and the hamburger
     menu (TODO) provide the path. */
  .nav__cta { display: none; }
}

/* --- 6. Hero -------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: center;
  padding-block: clamp(5rem, 12vw, 8rem);
  background-size: cover;
  background-position: center;
  color: #fff;
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 70% 40%, rgba(11,11,18,0.25) 0%, rgba(11,11,18,0.7) 70%),
    linear-gradient(135deg, rgba(148,112,220,0.45) 0%, rgba(146,184,255,0.25) 100%);
  z-index: -1;
}
.hero__inner { max-width: 60ch; }
.hero h1 { color: #fff; }
.hero .lead { color: rgba(255,255,255,0.85); font-size: clamp(1.1rem, 1.8vw, 1.35rem); max-width: 50ch; }
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.95rem 1.6rem;
  border-radius: 999px;
  font-size: 0.98rem;
  font-weight: 500;
  letter-spacing: 0.005em;
  border: 1px solid transparent;
  transition: transform var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: #fff; color: var(--c-ink); }
.btn--primary:hover { background: var(--c-accent-strong); color: #fff; }
.btn--ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.5); }
.btn--ghost:hover { background: rgba(255,255,255,0.12); border-color: #fff; }

.btn--ink { background: var(--c-ink); color: #fff; }
.btn--ink:hover { background: var(--c-accent-strong); }
.btn--outline { background: transparent; color: var(--c-ink); border-color: var(--c-ink); }
.btn--outline:hover { background: var(--c-ink); color: #fff; }

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.7);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}
.hero__scroll::after {
  content: "";
  display: block;
  width: 1px; height: 36px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.7) 0%, transparent 100%);
  animation: scrollHint 1.6s var(--ease-soft) infinite;
  transform-origin: top;
}
@keyframes scrollHint {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* --- 7. Service sections -------------------------------------------------- */
.service {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}
.service--reverse { direction: rtl; }
.service--reverse > * { direction: ltr; }

.service__num {
  font-family: var(--ff-display);
  font-size: clamp(3.5rem, 8vw, 6rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--c-accent);
  opacity: 0.18;
  line-height: 1;
  margin-bottom: 0.4rem;
  user-select: none;
}
.service__copy h2 { max-width: 18ch; }
.service__copy ul {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}
.service__copy li {
  position: relative;
  padding-left: 1.6rem;
  color: var(--c-ink-soft);
  font-size: 1rem;
  line-height: 1.55;
}
.service__copy li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.65em;
  width: 0.7rem; height: 1px;
  background: var(--c-accent-strong);
}
.service__copy li strong {
  color: var(--c-ink);
  font-weight: 600;
  display: inline;
}

.service__visual {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--c-paper-warm);
  box-shadow: 0 30px 60px -30px rgba(20,15,60,0.18);
}
.service__visual img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--ease-out);
}
.service__visual:hover img { transform: scale(1.04); }

.service__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 2rem;
  font-weight: 500;
  color: var(--c-ink);
  border-bottom: 1px solid var(--c-ink);
  padding-bottom: 0.2rem;
  transition: color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.service__cta:hover { color: var(--c-accent-strong); border-color: var(--c-accent-strong); }
.service__cta::after {
  content: "→";
  display: inline-block;
  transition: transform var(--dur-fast) var(--ease-out);
}
.service__cta:hover::after { transform: translateX(3px); }

@media (max-width: 880px) {
  .service { grid-template-columns: 1fr; gap: 2rem; }
  .service--reverse { direction: ltr; }
  .service__visual { aspect-ratio: 5 / 3; }
}

/* --- 8. About ------------------------------------------------------------- */
.about {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}
.about__media {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.portrait {
  position: relative;
  aspect-ratio: 3 / 4;
  border-radius: var(--r-md);
  overflow: hidden;
  background: linear-gradient(135deg, var(--c-blue-3) 0%, var(--c-purple-1) 100%);
  box-shadow: 0 24px 48px -20px rgba(20,15,60,0.25);
}
.portrait--shift { transform: translateY(1.5rem); }
.portrait__placeholder {
  position: absolute; inset: 0;
  display: grid;
  place-items: center;
  color: rgba(255,255,255,0.85);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-align: center;
  padding: 1rem;
}
.portrait img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}

.about__body h2 { max-width: 16ch; }
.about__body p {
  color: var(--c-ink-soft);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 52ch;
}
.about__signatures {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--c-line);
}
.about__sig { font-size: 0.95rem; }
.about__sig strong { display: block; color: var(--c-ink); font-weight: 600; }
.about__sig span { color: var(--c-ink-muted); font-size: 0.85rem; }

@media (max-width: 880px) {
  .about { grid-template-columns: 1fr; }
  .about__media { max-width: 480px; margin-inline: auto; }
  .portrait--shift { transform: none; }
}

.about-intro {
  max-width: 62ch;
  margin: 0 auto 4rem;
  text-align: left;
}
.about-intro h2 {
  font-size: clamp(2rem, 3.6vw, 2.6rem);
  margin: 0.4rem 0 1.2rem;
  max-width: 18ch;
  color: var(--c-ink);
}
.about-intro p {
  color: var(--c-ink-soft);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 60ch;
}

.about-team {
  display: grid;
  gap: clamp(2.5rem, 6vw, 4rem);
}
.about-person {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.5fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.about-person__portrait .portrait {
  max-width: 320px;
  margin-inline: auto;
}
.about-person__body h3 {
  font-size: clamp(1.5rem, 2.4vw, 1.9rem);
  margin: 0 0 0.3rem;
  color: var(--c-ink);
  letter-spacing: -0.01em;
}
.about-person__role {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-purple-3);
  margin: 0 0 1.1rem;
}
.about-person__body p {
  color: var(--c-ink-soft);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 60ch;
  margin: 0 0 0.9rem;
}
.about-person__body p:last-child { margin-bottom: 0; }

@media (max-width: 880px) {
  .about-person { grid-template-columns: 1fr; gap: 1.5rem; }
  .about-person__portrait .portrait { max-width: 280px; }
  .about-intro { margin-bottom: 2.5rem; }
}

/* --- 9. Contact ----------------------------------------------------------- */
.contact__inner {
  text-align: center;
  max-width: 60ch;
  margin-inline: auto;
}
.contact__channels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  margin-top: 2.5rem;
}
.contact-card {
  display: block;
  padding: 1.8rem 1.4rem;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--r-md);
  background: rgba(255,255,255,0.04);
  text-align: left;
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.contact-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.4);
  transform: translateY(-2px);
}
.contact-card__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-purple-1);
  display: block;
  margin-bottom: 0.5rem;
}
.contact-card__value {
  font-size: clamp(0.95rem, 1.6vw, 1.35rem);
  font-weight: 500;
  color: #fff;
  word-break: normal;
  overflow-wrap: break-word;
  hyphens: none;
}

@media (max-width: 600px) {
  .contact__channels { grid-template-columns: 1fr; }
}

/* --- 10. Footer ----------------------------------------------------------- */
.footer {
  padding-block: 2.5rem 1.5rem;
  background: var(--c-paper-deep);
  color: rgba(255,255,255,0.6);
  font-size: 0.88rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer__brand img { height: 36px; width: auto; opacity: 1; }
.footer__legal { display: flex; gap: 1.5rem; flex-wrap: wrap; align-items: center; }
.footer__legal a { color: rgba(255,255,255,0.6); transition: color var(--dur-fast) var(--ease-out); }
.footer__legal a:hover { color: #fff; }
.footer__divider { color: rgba(255,255,255,0.25); user-select: none; }

/* --- 10b. Legal pages (privacy / terms) --------------------------------- */
.legal-page {
  padding-block: clamp(3rem, 8vw, 6rem) clamp(4rem, 10vw, 8rem);
  background: var(--c-paper);
  color: var(--c-ink);
}
.legal-page .container { max-width: 70ch; }
.legal-page h1 {
  font-family: var(--ff-display);
  font-size: clamp(2rem, 4.5vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}
.legal-page h2 {
  font-family: var(--ff-display);
  font-size: clamp(1.25rem, 2.4vw, 1.5rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 2.5rem 0 0.75rem;
  color: var(--c-ink);
}
.legal-page p,
.legal-page li { font-size: 1rem; line-height: 1.65; color: var(--c-ink-soft); }
.legal-page ul { padding-left: 1.4rem; margin: 0.6rem 0 1rem; }
.legal-page li { margin-bottom: 0.4rem; }
.legal-page a { color: var(--c-accent-strong); text-decoration: underline; text-underline-offset: 3px; }
.legal-page a:hover { color: var(--c-ink); }
.legal-page code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9em; background: var(--c-paper-warm); padding: 0.1em 0.4em; border-radius: 4px; }
.legal-updated { color: var(--c-ink-muted); font-size: 0.9rem; margin: 0 0 2rem; }
.legal-back { font-size: 0.9rem; margin: 0 0 2rem; }
.legal-back a { color: var(--c-ink-soft); text-decoration: none; }
.legal-back a:hover { color: var(--c-accent-strong); }

/* --- 11. Scroll-triggered animations ------------------------------------- */
/* Content is ALWAYS visible by default — we never trap users with hidden
   content. The reveal animation is purely additive: when JS is on and an
   element comes into view, it gets a brief slide-up + fade-in via a class.
   If JS is off (or fails), content just shows. No FOUC, no broken state. */
.reveal {
  /* No-op in the base state — content is visible. */
}
.reveal--in {
  animation: reveal-in var(--dur) var(--ease-out) backwards;
}
@keyframes reveal-in {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* stagger children */
.reveal-stagger > * {
  /* No-op base. */
}
.reveal-stagger--in > * {
  animation: reveal-in var(--dur) var(--ease-out) backwards;
}
.reveal-stagger--in > *:nth-child(1) { animation-delay: 0ms; }
.reveal-stagger--in > *:nth-child(2) { animation-delay: 90ms; }
.reveal-stagger--in > *:nth-child(3) { animation-delay: 180ms; }
.reveal-stagger--in > *:nth-child(4) { animation-delay: 270ms; }

/* slide-from-left / slide-from-right variants */
.reveal--left.reveal--in {
  animation-name: reveal-in-left;
}
.reveal--right.reveal--in {
  animation-name: reveal-in-right;
}
@keyframes reveal-in-left {
  from { opacity: 0; transform: translateX(-32px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes reveal-in-right {
  from { opacity: 0; transform: translateX(32px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* scale-in for hero */
.reveal--scale.reveal--in {
  animation-name: reveal-in-scale;
}
@keyframes reveal-in-scale {
  from { opacity: 0; transform: scale(0.96); }
  to   { opacity: 1; transform: scale(1); }
}

/* --- 12. Helpers ---------------------------------------------------------- */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.divider {
  border: 0;
  height: 1px;
  background: var(--c-line);
  margin: 0;
}