/* ==========================================================================
   Denver Meyer — Landing Page Styles
   Design System: Helvetica Neue Light, Warm Bronze Accent, Warm Whites
   ========================================================================== */

/* ==========================================================================
   0. CSS Custom Properties
   ========================================================================== */

:root {
  /* Typography */
  --font-heading: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body: "Helvetica Neue", Helvetica, Arial, sans-serif;

  --type-hero: clamp(3rem, 6vw, 5.5rem);
  --type-h2: clamp(1.75rem, 3vw, 2.5rem);
  --type-h3: 1.25rem;
  --type-body-lg: 1.125rem;
  --type-body: 1rem;
  --type-caption: 0.875rem;
  --type-small: 0.75rem;

  /* Colors */
  --color-primary: #000000;
  --color-body: #000000;
  --color-muted: #000000;
  --color-border: #E5E2DD;
  --color-surface: #F7F6F3;
  --color-bg: #FDFCFA;
  --color-accent: #F2B882;
  --color-accent-hover: #E5A56E;
  --color-accent-soft: #E6A67A;
  --color-accent-soft-hover: #D88C5B;
  --color-white: #FFFFFF;
  --color-success: #4A7C59;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(26, 26, 26, 0.04);
  --shadow-md: 0 4px 12px rgba(26, 26, 26, 0.06);
  --shadow-lg: 0 8px 24px rgba(26, 26, 26, 0.08);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 720px;
  --nav-height: 64px;
}

@media (min-width: 1024px) {
  :root {
    --nav-height: 72px;
  }
}

/* ==========================================================================
   1. Reset & Base
   ========================================================================== */

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--type-body);
  font-weight: 300;
  line-height: 1.6;
  color: var(--color-primary);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  background: none;
  outline: none;
}

button {
  cursor: pointer;
}

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

/* ==========================================================================
   2. Typography
   ========================================================================== */

h1, h2, h3 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  line-height: 1.15;
  font-weight: 400;
  letter-spacing: -0.01em;
}

h2 {
  font-size: var(--type-h2);
}

h2::after {
  display: none;
}

h3 {
  font-size: var(--type-h3);
}

.section-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.section-divider {
  width: 100%;
  height: 2px;
  background-color: #D4A373;
  margin: 0;
}

/* ==========================================================================
   3. Layout
   ========================================================================== */

section {
  padding: var(--space-4xl) 0;
}

@media (min-width: 1024px) {
  section {
    padding: var(--space-5xl) 0;
  }
}

/* ==========================================================================
   4. Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.875rem 2rem;
  font-family: var(--font-body);
  font-size: var(--type-caption);
  font-weight: 400;
  letter-spacing: 0.02em;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  white-space: nowrap;
}

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

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

.btn--ghost {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-accent-soft);
  color: var(--color-accent-soft-hover);
}

.btn--dark {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn--dark:hover {
  background-color: #333333;
}

.btn--inverted {
  background-color: var(--color-white);
  color: var(--color-primary);
}

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

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

/* ==========================================================================
   5. Navigation
   ========================================================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 100;
  background: rgba(253, 252, 250, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(107, 107, 107, 0.6);
  transition: background var(--transition-base);
}

.nav__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: var(--type-caption);
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.nav__links {
  display: none;
  align-items: center;
  gap: var(--space-xl);
}

.nav__links a {
  font-size: var(--type-caption);
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--color-body);
}

.nav__links a:hover {
  color: var(--color-primary);
}

.nav__links a::after {
  content: '';
  display: block;
  width: 0;
  height: 1.5px;
  background-color: var(--color-accent-soft);
  transition: width var(--transition-base);
}

.nav__links a:hover::after {
  width: 100%;
}

.nav__cta {
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.nav__cta:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  padding: 0;
}

.nav__toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background-color: var(--color-primary);
  transition: all var(--transition-base);
  transform-origin: center;
}

.nav__toggle[aria-expanded="true"] span:first-child {
  transform: rotate(45deg) translate(2px, 2px);
}

.nav__toggle[aria-expanded="true"] span:last-child {
  transform: rotate(-45deg) translate(2px, -2px);
}

/* Mobile Menu */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  width: 100%;
  background: rgba(253, 252, 250, 0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(107, 107, 107, 0.6);
  padding: var(--space-xl) var(--space-lg);
}

.nav__mobile.is-open {
  display: block;
}

.nav__mobile a {
  display: block;
  padding: var(--space-md) 0;
  font-size: var(--type-body-lg);
  font-weight: 400;
  color: var(--color-primary);
  border-bottom: 1px solid rgba(107, 107, 107, 0.6);
}

.nav__mobile a:last-child {
  border-bottom: none;
}

@media (min-width: 768px) {
  .nav__links {
    display: flex;
  }

  .nav__toggle {
    display: none;
  }

  .nav__mobile {
    display: none !important;
  }
}

/* ==========================================================================
   6. Hero
   ========================================================================== */

.hero {
  padding-top: 140px;
  padding-bottom: 140px;
  min-height: auto;
  height: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero__container {
  max-width: 900px;
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--space-lg);
  text-align: center;
}

.hero__label {
  font-size: var(--type-caption);
  font-weight: 400;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 20px;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(48px, 6vw, 72px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--color-primary);
  margin-bottom: 24px;
}

.hero__tagline {
  font-size: var(--type-body-lg);
  line-height: 1.4;
  color: var(--color-primary);
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 0;
  text-align: center;
  white-space: nowrap;
}

.hero__actions {
  display: inline-flex;
  justify-content: center;
  gap: 18px;
  margin-top: 48px;
}

.hero__actions .btn {
  min-width: 220px;
  height: 48px;
  padding: 14px 28px;
}

@media (max-width: 768px) {
  .hero {
    padding-top: 100px;
    padding-bottom: 100px;
  }
  .hero__container {
    padding: 0 var(--space-lg);
  }
  .hero__tagline {
    white-space: normal;
    max-width: 480px;
  }
  .hero__actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }
  .hero__actions .btn {
    min-width: 220px;
  }
}

/* ==========================================================================
   7. About
   ========================================================================== */

.about {
  background-color: var(--color-surface);
}

.about__container {
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--space-lg);
}

.about__label {
  margin-bottom: var(--space-xl);
}

.about__heading {
  margin-bottom: var(--space-xl);
}

.about__lead {
  font-size: var(--type-body-lg);
  line-height: 1.7;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.about__body {
  line-height: 1.7;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.about__details {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xl);
  padding-top: var(--space-xl);
}

.about__detail-label {
  display: block;
  font-size: var(--type-small);
  font-weight: 400;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-xs);
}

.about__detail-value {
  display: block;
  font-family: var(--font-heading);
  font-weight: 400;
  color: var(--color-primary);
}

@media (min-width: 1024px) {
  .about__label {
    margin-bottom: 0;
  }
}

/* ==========================================================================
   8. Services
   ========================================================================== */

.services__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.services__heading {
  margin-top: var(--space-md);
  margin-bottom: var(--space-2xl);
}

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

.service-card__number {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--type-h2);
  font-weight: 400;
  color: var(--color-border);
  line-height: 1;
  margin-bottom: var(--space-md);
  transition: color var(--transition-base);
}

.service-card:hover .service-card__number {
  color: var(--color-accent);
}

.service-card__title {
  margin-bottom: var(--space-sm);
}

.service-card__description {
  color: var(--color-primary);
  line-height: 1.7;
}

@media (min-width: 768px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .services__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
  }
}

/* ==========================================================================
   9. Portfolio
   ========================================================================== */

.portfolio {
  background-color: var(--color-surface);
}

.portfolio__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.portfolio__heading {
  margin-top: var(--space-md);
  margin-bottom: var(--space-lg);
}

/* Center accent line under centered headings */
.contact__heading::after {
  content: none;
}

.portfolio__intro {
  font-size: var(--type-body-lg);
  color: var(--color-primary);
  line-height: 1.7;
  margin-bottom: var(--space-2xl);
}

.portfolio__image-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.portfolio__image-grid img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-md);
  transition: transform var(--transition-slow);
}

.portfolio__image-grid img:hover {
  transform: scale(1.02);
}

.portfolio__closing {
  font-size: var(--type-caption);
  color: var(--color-primary);
  line-height: 1.7;
  margin-bottom: 0;
}

.portfolio__closing:first-of-type {
  margin-top: var(--space-2xl);
}

.portfolio__closing + .portfolio__closing {
  margin-top: var(--space-md);
}

@media (min-width: 768px) {
  .portfolio__image-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .portfolio__image-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Clients logo strip */
.portfolio__clients {
  margin-top: 0;
  padding-top: 0;
  text-align: center;
  overflow: visible;
}

.portfolio__clients-divider {
  height: 1px;
  background-color: #3A3A3A;
  width: 100%;
  margin-top: 80px;
  margin-bottom: 40px;
}

.portfolio__clients-label {
  font-size: var(--type-small);
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-xl);
}

.portfolio__clients-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 20px 40px;
  overflow: visible;
}

.portfolio__client-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
}

.portfolio__clients-grid img {
  max-height: 40px;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  overflow: visible;
  opacity: 1;
  filter: grayscale(100%) brightness(0);
  transition: filter var(--transition-base);
}

.portfolio__clients-grid img:hover {
  filter: grayscale(0%) brightness(0);
}

@media (max-width: 767px) {
  .portfolio__clients-grid {
    gap: 16px 28px;
  }

  .portfolio__clients-grid img {
    max-height: 32px;
  }
}

/* ==========================================================================
   10. Availability
   ========================================================================== */

.availability {
  background-color: #F2B882;
  text-align: center;
}

.availability__container {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.availability__indicator {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.availability__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent-soft);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.availability__status {
  font-size: var(--type-caption);
  font-weight: 400;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.availability__heading {
  color: var(--color-primary);
  font-weight: 400;
  margin-bottom: var(--space-xl);
}

.availability__body {
  color: var(--color-primary);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-3xl);
  font-size: var(--type-caption);
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.availability .btn--dark {
  font-size: 1.125rem;
  padding: 1.1rem 2.75rem;
}

/* ==========================================================================
   11. Contact
   ========================================================================== */

.contact__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.contact__heading {
  margin-top: var(--space-md);
  margin-bottom: var(--space-lg);
}

.contact__body {
  line-height: 1.7;
  color: var(--color-primary);
  margin-bottom: var(--space-xl);
  max-width: 440px;
}

.contact__email {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--type-body-lg);
  font-weight: 400;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
  transition: color var(--transition-fast);
}

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

.contact__website {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--type-body-lg);
  font-weight: 400;
  color: var(--color-accent);
  margin-bottom: var(--space-2xl);
  transition: color var(--transition-fast);
}

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

.contact__location {
  font-size: var(--type-caption);
  color: var(--color-muted);
  margin-bottom: var(--space-2xl);
}

/* Form */
.contact__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.form-group label {
  font-size: var(--type-caption);
  font-weight: 400;
  color: var(--color-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem var(--space-md);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--type-body);
  color: var(--color-primary);
  transition: border-color var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-accent-soft);
  box-shadow: 0 0 0 3px rgba(230, 166, 122, 0.12);
  outline: none;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%237A7A7A' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

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

/* Form success state */
.contact__success {
  display: none;
  text-align: center;
  padding: var(--space-3xl) 0;
}

.contact__success.is-visible {
  display: block;
}

.contact__success h3 {
  font-size: var(--type-h2);
  margin-bottom: var(--space-md);
}

.contact__success p {
  color: var(--color-body);
  font-size: var(--type-body-lg);
}

@media (min-width: 1024px) {
  .contact__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
  }

  .contact__info .section-label {
    margin-bottom: 0;
  }
}

/* ==========================================================================
   12. Footer
   ========================================================================== */

.footer-divider {
  width: 100%;
  height: 1px;
  background-color: #444444;
}

.footer {
  background-color: var(--color-surface);
  padding: var(--space-2xl) 0;
}

.footer__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.footer__top {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(107, 107, 107, 0.6);
}

.footer__name {
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: var(--type-caption);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.footer__title {
  display: block;
  font-size: var(--type-caption);
  color: var(--color-muted);
  margin-top: var(--space-xs);
}

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

.footer__links a {
  font-size: var(--type-caption);
  font-weight: 400;
  color: var(--color-body);
}

.footer__links a:hover {
  color: var(--color-primary);
}

.footer__bottom {
  font-size: var(--type-small);
  color: var(--color-muted);
}

@media (min-width: 768px) {
  .footer__top {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* ==========================================================================
   13. Accessibility & Motion
   ========================================================================== */

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}