/* ============================================================
   EYAL HERMAN — FRACTIONAL PRODUCT LEADER
   styles.css
   ============================================================ */

/* ── CUSTOM PROPERTIES ── */
:root {
  --color-bg:         #FAFAFA;
  --color-white:      #FFFFFF;
  --color-text:       #1A1A1A;
  --color-accent:     #2A3347;
  --color-highlight:  #FFC107;
  --color-muted:      #6B7280;
  --color-border:     #E5E7EB;
  --color-dark:       #1A1A1A;

  --font-family:      'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --max-width:        1100px;
  --side-padding:     24px;

  --section-padding-desktop: 96px;
  --section-padding-mobile:  64px;

  --radius-card:      12px;
  --radius-sm:        8px;

  --transition-base:  0.2s ease;
  --transition-slow:  0.35s ease;

  --nav-height:       68px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.menu-open {
  overflow: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ── SKIP LINK ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 24px;
  padding: 8px 16px;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  z-index: 9999;
  transition: top var(--transition-base);
}
.skip-link:focus {
  top: 0;
}

/* ── CONTAINER ── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--side-padding);
}

/* ── SECTION WRAPPER ── */
.section {
  padding: var(--section-padding-desktop) 0;
  background-color: var(--color-bg);
}

.section--white {
  background-color: var(--color-white);
}

.section--dark {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.section--tint {
  background-color: #EEF1F6;
}

.section--warm {
  background-color: #FFF8EC;
  border-top: 3px solid var(--color-highlight);
}

/* ── TYPOGRAPHY UTILITIES ── */
.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.section-label--highlight {
  color: var(--color-highlight);
}

.section-h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.section-h2--white {
  color: var(--color-white);
}

.section-intro {
  font-size: 1.0625rem;
  color: var(--color-muted);
  max-width: 640px;
  margin-bottom: 48px;
  line-height: 1.7;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-family);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-base),
              color var(--transition-base),
              border-color var(--transition-base),
              box-shadow var(--transition-base),
              opacity var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn--accent {
  background-color: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.btn--accent:hover,
.btn--accent:focus-visible {
  background-color: #1d2535;
  border-color: #1d2535;
}

.btn--highlight {
  background-color: var(--color-highlight);
  color: var(--color-accent);
  border-color: var(--color-highlight);
  font-weight: 700;
}

.btn--highlight:hover,
.btn--highlight:focus-visible {
  background-color: #e6ac00;
  border-color: #e6ac00;
  color: var(--color-accent);
}

.btn--sm {
  font-size: 0.875rem;
  padding: 10px 20px;
}

.btn--full {
  width: 100%;
}

.btn:focus-visible {
  outline: 3px solid var(--color-highlight);
  outline-offset: 3px;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--color-accent);
  height: var(--nav-height);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: box-shadow var(--transition-base);
}

.nav.scrolled {
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.nav__logo-img {
  height: var(--nav-height);
  width: auto;
  display: block;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-base),
              border-color var(--transition-base);
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--color-white);
}

.nav__link.active {
  color: var(--color-highlight);
  border-bottom-color: var(--color-highlight);
}

.nav__link:focus-visible {
  outline: 3px solid var(--color-highlight);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: 6px;
  transition: background-color var(--transition-base);
}

.nav__hamburger:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.nav__hamburger:focus-visible {
  outline: 3px solid var(--color-highlight);
  outline-offset: 2px;
}

.hamburger-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: rgba(255, 255, 255, 0.85);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* ============================================================
   MOBILE MENU OVERLAY
   ============================================================ */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 1100;
  background-color: var(--color-white);
  display: flex;
  flex-direction: column;
  padding: 32px var(--side-padding);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.mobile-menu:not([hidden]) {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu[hidden] {
  display: flex !important; /* keep in layout for animation */
  pointer-events: none;
  opacity: 0;
}

.mobile-menu__close {
  align-self: flex-end;
  font-size: 2rem;
  color: var(--color-text);
  line-height: 1;
  padding: 4px 8px;
  border-radius: 6px;
  margin-bottom: 32px;
  transition: color var(--transition-base), background-color var(--transition-base);
}

.mobile-menu__close:hover {
  background-color: var(--color-border);
}

.mobile-menu__close:focus-visible {
  outline: 3px solid var(--color-highlight);
  outline-offset: 2px;
}

.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.mobile-menu__link {
  display: block;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
  transition: color var(--transition-base);
}

.mobile-menu__link:hover {
  color: var(--color-accent);
}

.mobile-menu__cta {
  margin-top: 32px;
  align-self: flex-start;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding-top: calc(var(--nav-height) + var(--section-padding-desktop));
  padding-bottom: var(--section-padding-desktop);
}

.hero__copy {
  max-width: 100%;
}

.hero__h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: 28px;
}

.hero__sub {
  font-size: 1.125rem;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 540px;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.hero__text-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 3px;
  transition: text-decoration-color var(--transition-base);
}

.hero__text-link:hover {
  text-decoration-color: var(--color-accent);
}


/* ============================================================
   PROBLEMS
   ============================================================ */
.problems__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.pain-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-sm);
  padding: 28px 28px 28px 24px;
}

.section--white .pain-card {
  background-color: var(--color-bg);
}

.section--dark .pain-card {
  background-color: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.1);
  border-left-color: var(--color-highlight);
}

.section--dark .pain-card__title {
  color: var(--color-white);
}

.section--dark .pain-card__body {
  color: rgba(255, 255, 255, 0.72);
}

.pain-card__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
  line-height: 1.4;
}

.pain-card__body {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.65;
}

/* ============================================================
   SERVICES
   ============================================================ */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.service-card:hover {
  box-shadow: 0 8px 32px rgba(42, 51, 71, 0.12);
  transform: translateY(-2px);
}

/* Card 1 — dark header */
.service-card--primary .service-card__header {
  background-color: var(--color-accent);
  border-bottom-color: rgba(255, 255, 255, 0.12);
}

.service-card--primary .service-card__title {
  color: var(--color-white);
}

.service-card--primary .service-card__tagline {
  color: rgba(255, 255, 255, 0.72);
}

.service-card--primary .service-card__duration {
  background-color: rgba(255, 193, 7, 0.18);
  color: var(--color-highlight);
}

/* Cards 2 & 3 — same dark header */
.service-card--secondary .service-card__header {
  background-color: var(--color-accent);
  border-bottom-color: rgba(255, 255, 255, 0.12);
}

.service-card--secondary .service-card__title {
  color: var(--color-white);
}

.service-card--secondary .service-card__tagline {
  color: rgba(255, 255, 255, 0.72);
}

.service-card--secondary .service-card__duration {
  background-color: rgba(255, 193, 7, 0.18);
  color: var(--color-highlight);
}

.service-card__header {
  padding: 28px 28px 24px;
  border-bottom: 1px solid var(--color-border);
}

.service-card__title {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.3;
}

.service-card__tagline {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.55;
  margin-bottom: 14px;
}

.service-card__duration {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-accent);
  background-color: rgba(42, 51, 71, 0.07);
  padding: 5px 12px;
  border-radius: 20px;
}

.service-card__body {
  padding: 24px 28px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.service-card__includes-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 14px;
}

.service-card__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
  flex: 1;
}

.service-card__list li {
  font-size: 0.9375rem;
  color: var(--color-text);
  line-height: 1.55;
  padding-left: 20px;
  position: relative;
}

.service-card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
  flex-shrink: 0;
}

.service-card__fit {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-top: auto;
}

.service-card__fit-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 6px;
}

.service-card__fit p {
  font-size: 0.875rem;
  color: var(--color-muted);
  line-height: 1.6;
}

/* ============================================================
   METHOD / HOW I WORK
   ============================================================ */
.method__strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  position: relative;
  margin-top: 56px;
}

.method__connector {
  position: absolute;
  top: 24px;
  left: calc(16.666% + 16px);
  right: calc(16.666% + 16px);
  height: 1px;
  background-color: var(--color-border);
  z-index: 0;
}

.method-step {
  padding: 0 32px 0 0;
  position: relative;
  z-index: 1;
}

.method-step:last-child {
  padding-right: 0;
}

.method-step__number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  flex-shrink: 0;
}

.method-step__title {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}

.method-step__subtitle {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-accent);
  background-color: rgba(42, 51, 71, 0.07);
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.method-step__body {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.7;
}

/* ============================================================
   DOMAINS
   ============================================================ */
.domains__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  margin-top: 48px;
}

.domains__col-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.8125rem;
}

.domains__list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.domains__list li {
  font-size: 0.9375rem;
  color: var(--color-text);
  line-height: 1.6;
  padding-left: 22px;
  position: relative;
}

.domains__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

.domains__also-box {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 24px;
  margin-top: 40px;
  box-shadow: 0 1px 4px rgba(42, 51, 71, 0.06);
}

.domains__also-box p {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.7;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about__grid {
  display: grid;
  grid-template-columns: 40fr 60fr;
  gap: 64px;
  align-items: start;
}

.about__portrait-img {
  width: 100%;
  border-radius: var(--radius-card);
  object-fit: cover;
  aspect-ratio: 3 / 4;
  object-position: top;
  box-shadow: 0 8px 32px rgba(42, 51, 71, 0.12);
  display: block;
}

.about__bio {
  font-size: 1.0625rem;
  color: var(--color-muted);
  line-height: 1.75;
  margin-bottom: 32px;
}

.about__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.credential-tag {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-accent);
  background-color: rgba(42, 51, 71, 0.07);
  border: 1px solid rgba(42, 51, 71, 0.15);
  padding: 6px 14px;
  border-radius: 20px;
}

/* ============================================================
   SELECTED WORK / PROOF
   ============================================================ */
.proof__notice {
  background-color: #FFFBEB;
  border: 1px solid #F59E0B;
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  margin-top: 40px;
  margin-bottom: 20px;
  max-width: 640px;
}

.proof__notice p {
  font-size: 0.9375rem;
  color: #92400E;
  line-height: 1.6;
}

.proof__notice-link {
  color: #92400E;
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 600;
}

.proof__notice-link:hover {
  color: #78350F;
}

.proof__placeholder {
  font-size: 0.9375rem;
  color: var(--color-muted);
  font-style: italic;
}

/* ============================================================
   PRINCIPLES
   ============================================================ */
.principles__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  margin-top: 48px;
}

.principle-card {
  padding: 0;
}

.principle-card__number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-highlight);
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -0.03em;
}

.principle-card__title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 14px;
  line-height: 1.35;
}

.principle-card__body {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.7;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq__list {
  max-width: 760px;
  margin-top: 48px;
  border-top: 1px solid var(--color-border);
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 24px 0;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  background: none;
  border: none;
  cursor: pointer;
  transition: color var(--transition-base);
}

.faq-item__trigger:hover {
  color: var(--color-accent);
}

.faq-item__trigger:focus-visible {
  outline: 3px solid var(--color-highlight);
  outline-offset: 2px;
  border-radius: 4px;
}

.faq-item__chevron {
  flex-shrink: 0;
  color: var(--color-muted);
  transition: transform var(--transition-base), color var(--transition-base);
}

.faq-item__trigger[aria-expanded="true"] .faq-item__chevron {
  transform: rotate(180deg);
  color: var(--color-accent);
}

.faq-item__trigger[aria-expanded="true"] {
  color: var(--color-accent);
}

.faq-item__answer {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-slow);
}

.faq-item__answer:not([hidden]) {
  max-height: 400px;
}

.faq-item__answer[hidden] {
  display: block !important;
  max-height: 0;
  pointer-events: none;
}

.faq-item__answer p {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.7;
  padding-bottom: 24px;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  margin-top: 40px;
}

.contact__body {
  font-size: 1.0625rem;
  color: var(--color-muted);
  line-height: 1.75;
  margin-bottom: 36px;
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
}

.contact__link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 3px;
  transition: text-decoration-color var(--transition-base), color var(--transition-base);
}

.contact__link:hover {
  text-decoration-color: var(--color-accent);
}

.contact__link svg {
  flex-shrink: 0;
}

.section--warm .form-input {
  background-color: var(--color-white);
  border-color: #E8D9B8;
}

.section--warm .form-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(42, 51, 71, 0.1);
}

/* FORM */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
}

.form-required {
  color: #DC2626;
  margin-left: 2px;
}

.form-optional {
  font-weight: 400;
  color: var(--color-muted);
  font-size: 0.8125rem;
  margin-left: 4px;
}

.form-input {
  font-family: var(--font-family);
  font-size: 0.9375rem;
  color: var(--color-text);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  width: 100%;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  appearance: none;
  -webkit-appearance: none;
}

.form-input::placeholder {
  color: #9CA3AF;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(42, 51, 71, 0.1);
}

.form-input:invalid:not(:placeholder-shown) {
  border-color: #DC2626;
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
  cursor: pointer;
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-status {
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  line-height: 1.5;
}

.form-status--success {
  background-color: #D1FAE5;
  color: #065F46;
  border: 1px solid #A7F3D0;
}

.form-status--error {
  background-color: #FEE2E2;
  color: #991B1B;
  border: 1px solid #FECACA;
}

.form-status--sending {
  background-color: rgba(42, 51, 71, 0.07);
  color: var(--color-accent);
  border: 1px solid var(--color-border);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background-color: var(--color-dark);
  color: rgba(255, 255, 255, 0.6);
  padding: 40px 0;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.footer__copy {
  font-size: 0.875rem;
  line-height: 1.5;
}

.footer__nav {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.footer__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-base);
}

.footer__link:hover {
  color: rgba(255, 255, 255, 1);
}

.footer__link:focus-visible {
  outline: 2px solid var(--color-highlight);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ============================================================
   MOBILE BOTTOM BAR
   ============================================================ */
.mobile-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 900;
  padding: 12px 16px;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.06);
}

/* ============================================================
   RESPONSIVE — TABLET (≤ 900px)
   ============================================================ */
@media (max-width: 900px) {
  .nav__links {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .hero__grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero__copy {
    max-width: 100%;
  }

  .services__grid {
    grid-template-columns: 1fr;
    max-width: 560px;
    margin: 0 auto;
  }

  .method__strip {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .method__connector {
    display: none;
  }

  .method-step {
    padding: 0;
    display: flex;
    gap: 20px;
    align-items: flex-start;
  }

  .method-step__number {
    margin-bottom: 0;
    flex-shrink: 0;
  }

  .domains__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about__portrait-img {
    max-width: 260px;
    margin: 0 auto;
  }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .principles__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .problems__grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   RESPONSIVE — MOBILE (≤ 640px)
   ============================================================ */
@media (max-width: 640px) {
  :root {
    --section-padding-desktop: 64px;
    --side-padding: 20px;
  }

  body {
    padding-bottom: 80px;
  }

  .mobile-bottom-bar {
    display: block;
  }

  .hero {
    padding-top: calc(var(--nav-height) + 48px);
    padding-bottom: 64px;
  }

  .hero__h1 {
    font-size: 2rem;
  }

  .hero__sub {
    font-size: 1rem;
  }

  .hero__actions {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .footer__nav {
    gap: 16px;
  }

  .section-h2 {
    font-size: 1.625rem;
  }

  .contact__links .btn {
    width: 100%;
    text-align: center;
  }
}

/* ============================================================
   FOCUS MANAGEMENT
   ============================================================ */
:focus-visible {
  outline: 3px solid var(--color-highlight);
  outline-offset: 2px;
}

/* Remove default focus ring for mouse users */
:focus:not(:focus-visible) {
  outline: none;
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}