/* ============================================================
   PROXY — styles.css
   Design tokens, base styles, layout, components, sections,
   responsive breakpoints
   ============================================================ */

/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
  --color-bg: #F6F4EF;
  --color-surface: #EDEAE3;
  --color-text-primary: #161616;
  --color-text-secondary: #4A4845;
  --color-accent: #9B611E;
  --color-accent-hover: #7D4D17;
  --color-border: #D9D5CC;

  --font-heading: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Inter', sans-serif;

  --max-width: 1200px;
  --max-width-narrow: 760px;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-section: 7.5rem; /* 120px */
  --space-section-lg: 10rem; /* 160px */

  --radius: 4px;
  --transition-base: 0.2s ease;
}

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

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

body {
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

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

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-text-primary);
  line-height: 1.15;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.625rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: var(--space-lg);
}

h3 {
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

p {
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.65;
}

p + p {
  margin-top: var(--space-sm);
}

/* ============================================================
   UTILITIES
   ============================================================ */
.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;
}

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

.container-narrow {
  max-width: var(--max-width-narrow);
}

/* ============================================================
   SCROLL ANIMATION
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9375rem;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius);
  transition: background-color var(--transition-base), color var(--transition-base);
  text-align: center;
  white-space: nowrap;
}

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

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

.btn-accent:hover {
  background-color: var(--color-accent-hover);
}

.btn-lg {
  font-size: 1rem;
  padding: 0.875rem 1.75rem;
}

/* ============================================================
   NAV
   ============================================================ */
#site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-bg);
  border-bottom: 1px solid transparent;
  transition: background-color var(--transition-base),
              border-color var(--transition-base),
              backdrop-filter var(--transition-base);
}

#site-nav.scrolled {
  background-color: rgba(246, 244, 239, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom-color: var(--color-border);
}

.nav-inner {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-md);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

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

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

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
}

.nav-links a:hover {
  color: var(--color-text-primary);
}

.nav-links a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border-radius: var(--radius);
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-text-primary);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

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

/* Mobile nav overlay */
#mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background-color: var(--color-bg);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
}

#mobile-nav.open {
  display: flex;
}

#mobile-nav nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

#mobile-nav a {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-primary);
  transition: color var(--transition-base);
}

#mobile-nav a:hover {
  color: var(--color-accent);
}

#mobile-nav a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius);
}

#mobile-nav .btn-accent {
  color: #FFFFFF;
}

.mobile-nav-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  font-size: 1.5rem;
  color: var(--color-text-secondary);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  transition: color var(--transition-base);
}

.mobile-nav-close:hover {
  color: var(--color-text-primary);
}

.mobile-nav-close:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* ============================================================
   HERO
   ============================================================ */
#hero {
  padding-block: var(--space-section-lg);
}

#hero .container {
  max-width: 900px;
}

#hero h1 {
  margin-bottom: var(--space-lg);
}

.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--color-text-secondary);
  max-width: 680px;
  margin-bottom: var(--space-xl);
  line-height: 1.7;
}

/* ============================================================
   PAIN POINTS
   ============================================================ */
#pain-points {
  padding-block: var(--space-section);
  background-color: var(--color-bg);
}

.cards-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-lg);
}

.card-lead {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1.0625rem;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
  line-height: 1.4;
}

.card-lead em {
  font-style: italic;
}

/* ============================================================
   HOW PROXY WORKS
   ============================================================ */
#how-it-works {
  padding-block: var(--space-section);
  background-color: var(--color-surface);
}

.how-intro {
  font-size: clamp(1.0625rem, 1.5vw, 1.1875rem);
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 760px;
  margin-bottom: var(--space-xl);
}

.how-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.how-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-lg);
}

.how-icon {
  margin-bottom: var(--space-sm);
}

.how-heading {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

@media (max-width: 768px) {
  .how-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   MEET THE TEAM
   ============================================================ */
#team {
  padding-block: var(--space-section);
  background-color: var(--color-bg);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.team-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-sm);
}

.team-photo {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  display: block;
  margin-bottom: var(--space-xs);
}

.team-name {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 0;
}

.team-title {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 0;
}

.team-blurb {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: var(--space-xs);
}

@media (max-width: 768px) {
  .team-grid {
    grid-template-columns: 1fr;
    gap: var(--space-section);
  }

  .team-card {
    align-items: center;
    text-align: center;
  }
}

/* ============================================================
   SERVICES
   ============================================================ */
#services {
  padding-block: var(--space-section);
  background-color: var(--color-surface);
}

.services-list {
  display: flex;
  flex-direction: column;
}

.service-block {
  padding-block: var(--space-xl);
  border-bottom: 1px solid var(--color-border);
}

.service-block:first-child {
  padding-top: 0;
}

.service-block:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.service-block h3 {
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.service-best-for {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-top: var(--space-sm);
}

/* ============================================================
   CAPABILITIES ACCORDION
   ============================================================ */
#capabilities {
  padding-block: var(--space-section);
  background-color: var(--color-bg);
}

.accordion {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-border);
}

details {
  border-bottom: 1px solid var(--color-border);
}

summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-lg);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: '+';
  font-size: 1.375rem;
  font-weight: 400;
  color: var(--color-text-secondary);
  flex-shrink: 0;
  transition: transform var(--transition-base);
  line-height: 1;
}

details[open] > summary::after {
  transform: rotate(45deg);
}

summary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius);
}

.summary-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-accent);
}

.accordion-body {
  padding-bottom: var(--space-lg);
}

.accordion-body ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  list-style: disc;
  padding-left: 1.25rem;
}

.accordion-body li {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* ============================================================
   CONTACT FORM
   ============================================================ */
#contact {
  padding-block: var(--space-section);
  background-color: var(--color-surface);
}

.contact-sub {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  line-height: 1.65;
}

#contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

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

label {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-primary);
}

.required {
  color: var(--color-accent);
}

.optional {
  font-weight: 400;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

input,
textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  width: 100%;
  transition: border-color var(--transition-base);
  -webkit-appearance: none;
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-secondary);
  opacity: 0.7;
}

input:focus,
textarea:focus {
  border-color: var(--color-accent);
}

input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

input.error,
textarea.error {
  border-color: #C0392B;
  outline: 2px solid #C0392B;
  outline-offset: 2px;
}

.field-error {
  display: block;
  color: #C0392B;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

#contact-form .btn {
  align-self: flex-start;
  margin-top: var(--space-xs);
}

#form-success,
#form-error {
  margin-top: var(--space-lg);
  padding: var(--space-md);
  border-radius: var(--radius);
}

#form-success {
  background-color: #EEF7EE;
  border: 1px solid #BFD9BF;
  color: #2D5A2D;
}

#form-success p,
#form-error p {
  color: inherit;
  font-size: 0.9375rem;
  font-weight: 500;
}

#form-error {
  background-color: #FDF2EE;
  border: 1px solid #E8C4B0;
  color: #7A3015;
}

#form-error a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ============================================================
   FOOTER
   ============================================================ */
#site-footer {
  padding-block: var(--space-xl);
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-links a {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
}

.footer-links a:hover {
  color: var(--color-text-primary);
}

.footer-links a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius);
}

.footer-copy {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  opacity: 0.7;
}

/* ============================================================
   RESPONSIVE — TABLET (max 1024px)
   ============================================================ */
@media (max-width: 1024px) {
  :root {
    --space-section: 6rem;
    --space-section-lg: 7.5rem;
  }

  .nav-links {
    gap: var(--space-md);
  }
}

/* ============================================================
   RESPONSIVE — TABLET SMALL / MOBILE (max 768px)
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --space-section: 5rem;
    --space-section-lg: 6rem;
  }

  .nav-links {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  h2 {
    margin-bottom: var(--space-md);
  }

  .cards-grid-2 {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   RESPONSIVE — MOBILE (max 640px)
   ============================================================ */
@media (max-width: 640px) {
  :root {
    --space-section: 4rem;
    --space-section-lg: 5rem;
    --space-xl: 3rem;
    --space-lg: 2rem;
  }

  .container {
    padding-inline: var(--space-sm);
  }

  h1 {
    font-size: 2.25rem;
  }

  h2 {
    font-size: 1.625rem;
  }

  .cards-grid-3 {
    grid-template-columns: 1fr;
  }

  .hero-sub {
    font-size: 1rem;
  }

  .footer-top {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  .footer-links {
    flex-direction: column;
    gap: var(--space-sm);
  }

  #contact-form .btn {
    width: 100%;
    text-align: center;
  }

  .service-block {
    padding-block: var(--space-lg);
  }
}

/* ============================================================
   SKIP NAVIGATION LINK
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 1000;
  background: var(--color-text-primary);
  color: #FFFFFF;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  font-size: 0.875rem;
  text-decoration: none;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 1rem;
}

/* ============================================================
   ABOUT US
   ============================================================ */
#about {
  padding-block: var(--space-section);
  background-color: var(--color-surface);
  text-align: center;
}

#about h2 {
  margin-bottom: var(--space-md);
}

#about p {
  margin-bottom: var(--space-lg);
}

.about-explore {
  margin-top: var(--space-md);
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  opacity: 0.8;
}

/* ============================================================
   PAIN POINTS — EYEBROW & ICONS
   ============================================================ */
.card-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.card-icon {
  margin-bottom: var(--space-sm);
}

.card-icon svg {
  display: block;
}

/* ============================================================
   PORTFOLIO SCREENSHOTS
   ============================================================ */
.work-screenshot {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius) var(--radius) 0 0;
  display: block;
  background-color: var(--color-surface);
}

.card-work-body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  flex: 1;
}

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

.link-active:hover {
  color: var(--color-accent-hover);
}

/* ============================================================
   FORM MESSAGE STATES
   ============================================================ */
.form-message {
  display: none;
}

.form-message.active {
  display: block;
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  .fade-in {
    transition: none;
  }
  .fade-in:not(.visible) {
    opacity: 1;
    transform: none;
  }
}