/* ============================================================
   clbx consulting — styles.css
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:ital,wght@0,100..800;1,100..800&display=swap');

/* ── RESET & BASE ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #FAF7F2;
  --bg-2:      #F2EEE7;
  --bg-3:      #EAE5DC;
  --text:      #2D2D2D;
  --text-dim:  #7A7672;
  --text-mute: rgba(45, 45, 45, 0.3);
  --border:    rgba(45, 45, 45, 0.12);
  --border-2:  rgba(45, 45, 45, 0.22);

  --font: 'JetBrains Mono', monospace;

  --max-w: 1100px;
  --pad:   clamp(1.5rem, 5vw, 3rem);
  --section-gap: clamp(5rem, 10vw, 8rem);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-weight: 300;
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { display: block; max-width: 100%; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ── UTILITIES ────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.section { padding: var(--section-gap) 0; }

.label {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  display: block;
  margin-bottom: 0.5rem;
}

/* ── BUTTONS ──────────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 0.7rem 1.75rem;
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: lowercase;
  border: 1px solid var(--text);
  color: var(--text);
  transition: background 0.2s, color 0.2s;
}
.btn:hover {
  background: var(--text);
  color: var(--bg);
}
.btn--full { width: 100%; text-align: center; }

/* ── REVEAL ───────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ══════════════════════════════════════════════════════════
   NAV
══════════════════════════════════════════════════════════ */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem var(--pad);
  transition: background 0.3s, border-bottom 0.3s;
}

nav.scrolled {
  background: rgba(250, 247, 242, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav__logo a {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text);
}

.nav__links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav__links a {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
  padding-bottom: 1px;
}
.nav__links a:hover {
  color: var(--text);
  border-color: var(--text);
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav__hamburger span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--text);
  transition: all 0.3s;
}
.nav__hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

/* ══════════════════════════════════════════════════════════
   HERO
══════════════════════════════════════════════════════════ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: clamp(8rem, 14vw, 11rem) var(--pad) clamp(4rem, 7vw, 6rem);
  border-bottom: 1px solid var(--border);
  position: relative;
}

.hero__content {
  max-width: 720px;
  animation: fadeUp 0.8s ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: none; }
}

.hero__label {
  font-size: 0.68rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 2rem;
  animation: fadeUp 0.8s 0.1s ease both;
}

.hero__title {
  font-size: clamp(3.5rem, 10vw, 8rem);
  font-weight: 200;
  line-height: 0.93;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 2rem;
  animation: fadeUp 0.8s 0.2s ease both;
}

.hero__sub {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.9;
  margin-bottom: 3rem;
  max-width: 440px;
  animation: fadeUp 0.8s 0.3s ease both;
}

.hero__content .btn {
  animation: fadeUp 0.8s 0.45s ease both;
}

.hero__scroll {
  position: absolute;
  bottom: 2.5rem;
  right: var(--pad);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  animation: fadeUp 1s 0.8s ease both;
}

.hero__scroll span {
  font-size: 0.58rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-mute);
  writing-mode: vertical-rl;
}

.hero__scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--text-dim), transparent);
  animation: scrollPulse 2s ease infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.7); transform-origin: top; }
  50%       { opacity: 0.8; transform: scaleY(1);   transform-origin: top; }
}

/* ══════════════════════════════════════════════════════════
   SECTION HEADER
══════════════════════════════════════════════════════════ */
.section__header {
  margin-bottom: clamp(3rem, 6vw, 5rem);
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.5rem;
}

.section__header h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 200;
  letter-spacing: -0.03em;
  line-height: 1;
}

/* ══════════════════════════════════════════════════════════
   SERVICES
══════════════════════════════════════════════════════════ */
.services { background: var(--bg); }

.service {
  padding: clamp(2.5rem, 5vw, 4.5rem) 0;
}

.service__meta {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2rem;
  align-items: start;
}

.service__num {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--text-mute);
  padding-top: 0.3rem;
  font-weight: 400;
}

.service__info h3 {
  font-size: clamp(1.4rem, 3.5vw, 2.4rem);
  font-weight: 300;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-bottom: 1.25rem;
  color: var(--text);
}

.service__info > p {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.85;
  max-width: 580px;
  margin-bottom: 2.5rem;
}

.service__list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.service__list li {
  font-size: 0.8rem;
  color: var(--text-dim);
  padding-left: 1.5rem;
  position: relative;
}
.service__list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--text-mute);
}

.service-divider {
  border-top: 1px solid var(--border);
}

/* ── EXAMPLE SITES ────────────────────────────────────────── */
.examples {
  padding-left: 112px;
  padding-top: 0;
}

.examples > .label {
  margin-bottom: 1.25rem;
}

.examples__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  border: 1px solid var(--border);
  background: var(--border);
}

.example-card {
  background: var(--bg);
  display: block;
  transition: background 0.2s;
}
.example-card:hover {
  background: var(--bg-2);
}

.example-card__preview {
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.65rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-3);
}

.browser-dots {
  display: flex;
  gap: 3px;
  flex-shrink: 0;
}
.browser-dots span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--text-mute);
}

.browser-url {
  font-size: 0.5rem;
  letter-spacing: 0.02em;
  color: var(--text-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.example-card__screen {
  padding: 0.85rem 0.7rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  height: 65px;
}

.screen-line {
  height: 5px;
  background: var(--border-2);
  border-radius: 1px;
  width: 100%;
}
.screen-line--short  { width: 50%; }
.screen-line--medium { width: 72%; }

.example-card__info {
  padding: 0.75rem 0.75rem 0.9rem;
}

.example-card__type {
  display: block;
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 0.3rem;
}

.example-card__link {
  font-size: 0.58rem;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}

/* ══════════════════════════════════════════════════════════
   CONTACT
══════════════════════════════════════════════════════════ */
.contact {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: clamp(3rem, 7vw, 7rem);
  align-items: start;
}

.contact__info > p {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.85;
  margin-bottom: 2.5rem;
  max-width: 320px;
}

.contact__detail {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.contact__detail a {
  font-size: 0.9rem;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
  padding-bottom: 1px;
}
.contact__detail a:hover { border-color: var(--text); }

/* FORM */
.contact__form-wrap { position: relative; }

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form__group label {
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.form__group input,
.form__group select,
.form__group textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 300;
  padding: 0.75rem 1rem;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
}

.form__group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%237A7672'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 16px;
  padding-right: 2.5rem;
}

.form__group input::placeholder,
.form__group textarea::placeholder {
  color: var(--text-mute);
  font-weight: 300;
}

.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
  border-color: var(--text);
}

.form__group textarea { resize: vertical; min-height: 130px; }

.form__success {
  display: none;
  padding: 3rem;
  border: 1px solid var(--border);
  background: var(--bg);
  text-align: center;
}
.form__success.visible { display: block; }
.form__success p {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.8;
}

/* ══════════════════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════════════════ */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
}

.footer__grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__logo {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  display: block;
  margin-bottom: 0.4rem;
  color: var(--text);
}

.footer__brand p {
  font-size: 0.62rem;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}

.footer__links {
  display: flex;
  gap: 2rem;
}

.footer__links a {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  transition: color 0.2s, border-color 0.2s;
}
.footer__links a:hover {
  color: var(--text);
  border-color: var(--text);
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════════ */
@media (max-width: 960px) {
  .examples__grid { grid-template-columns: repeat(2, 1fr); }
  .examples { padding-left: 0; margin-top: 2rem; }
  .service__meta { grid-template-columns: 1fr; gap: 0.5rem; }
  .service__num { padding-top: 0; }
}

@media (max-width: 768px) {
  .nav__links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 240px;
    background: var(--bg);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 2rem;
    gap: 2rem;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    border-left: 1px solid var(--border);
    z-index: 99;
  }
  .nav__links.open { transform: none; }
  .nav__hamburger { display: flex; z-index: 100; }

  .contact__grid { grid-template-columns: 1fr; gap: 3rem; }
  .form__row { grid-template-columns: 1fr; }

  .footer__grid { flex-direction: column; gap: 1.5rem; align-items: flex-start; }
}

@media (max-width: 520px) {
  .examples__grid { grid-template-columns: 1fr; }
  .hero__scroll { display: none; }
}