/* ========================================
   DIG Appraisals — Design System
   ======================================== */

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-black: #111111;
  --color-dark: #1a1a1a;
  --color-grey-900: #222222;
  --color-grey-700: #555555;
  --color-grey-500: #888888;
  --color-grey-300: #cccccc;
  --color-grey-100: #f5f5f5;
  --color-white: #ffffff;
  --color-accent: #c8a96e;

  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --max-width: 1200px;
  --nav-height: 72px;
}

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

body {
  font-family: var(--font-body);
  color: var(--color-dark);
  background: var(--color-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ========================================
   Typography
   ======================================== */

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-black);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.1rem; }

p {
  margin-bottom: 1.25rem;
  color: var(--color-grey-700);
}

.label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
}

/* ========================================
   Navigation
   ======================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--color-black);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.nav__inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-body);
  font-size: 2.0rem;
  font-weight: 900;
  color: var(--color-white);
  letter-spacing: 0.08em;
}

.nav__logo img {
  display: block;
  height: 36px;
  width: auto;
  max-width: none;
}

.nav__links {
  display: flex;
  gap: 2rem;
  margin-left: 3rem;
  list-style: none;
  align-items: center;
}

.nav__links a {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-grey-300);
  transition: color 0.2s;
  white-space: nowrap;
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--color-white);
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  margin: 5px 0;
  transition: 0.3s;
}

/* Mobile Nav */
@media (max-width: 900px) {
  .nav__toggle { display: block; }

  .nav__links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-black);
    flex-direction: column;
    padding: 1.5rem 2rem 2rem;
    gap: 1.2rem;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s, opacity 0.3s;
  }

  .nav__links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav__links a {
    font-size: 1rem;
  }
}

/* ========================================
   Layout
   ======================================== */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 6rem 0;
}

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

.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-white);
}

.section--dark p {
  color: var(--color-grey-300);
}

.section--grey {
  background: var(--color-grey-100);
}

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

/* ========================================
   Hero
   ======================================== */

.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  background: var(--color-black);
  overflow: hidden;
  margin-top: var(--nav-height);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.35;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  padding: 4rem 2rem;
}

.hero__content .container {
  padding: 0;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: 1.5rem;
}

.hero p {
  color: var(--color-grey-300);
  font-size: 1.15rem;
  line-height: 1.8;
  max-width: 560px;
  margin-bottom: 2.5rem;
}

/* ========================================
   Page Header (for inner pages)
   ======================================== */

.page-header {
  padding: 8rem 0 4rem;
  background: var(--color-black);
  margin-top: var(--nav-height);
}

.page-header .label {
  margin-bottom: 1rem;
  display: block;
}

.page-header h1 {
  color: var(--color-white);
  margin-bottom: 1rem;
}

.page-header p {
  color: var(--color-grey-300);
  max-width: 640px;
  font-size: 1.1rem;
}

/* ========================================
   Buttons
   ======================================== */

.btn {
  display: inline-block;
  padding: 0.85rem 2.2rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: all 0.25s;
}

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

.btn--primary:hover {
  background: #b8963d;
}

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid var(--color-white);
}

.btn--outline:hover {
  background: var(--color-white);
  color: var(--color-black);
}

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

.btn--dark:hover {
  background: var(--color-grey-900);
}

/* ========================================
   Service Cards
   ======================================== */

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--color-white);
  border: 1px solid #e8e8e8;
  padding: 2.5rem 2rem;
  transition: transform 0.25s, box-shadow 0.25s;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

.service-card .label {
  margin-bottom: 1rem;
  display: block;
}

.service-card h3 {
  margin-bottom: 1rem;
}

.service-card p {
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.service-card__link {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.service-card__link::after {
  content: '\2192';
  transition: transform 0.2s;
}

.service-card:hover .service-card__link::after {
  transform: translateX(4px);
}

/* ========================================
   Two-Column Layout
   ======================================== */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.split--reverse {
  direction: rtl;
}

.split--reverse > * {
  direction: ltr;
}

@media (max-width: 768px) {
  .split {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .split--reverse {
    direction: ltr;
  }
}

.split__text .label {
  margin-bottom: 1rem;
  display: block;
}

.split__text h2 {
  margin-bottom: 1.5rem;
}

.split__image {
  background: var(--color-grey-100);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-grey-500);
  font-size: 0.9rem;
  border: 0px solid #e8e8e8;
}

/* ========================================
   Testimonial / Quote
   ======================================== */

.quote-block {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  padding: 3rem 0;
}

.quote-block blockquote {
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  font-style: italic;
  line-height: 1.6;
  color: var(--color-dark);
  margin-bottom: 1.5rem;
}

.quote-block cite {
  font-family: var(--font-body);
  font-style: normal;
  font-size: 0.85rem;
  color: var(--color-grey-500);
  letter-spacing: 0.04em;
}

.section--dark .quote-block blockquote {
  color: var(--color-white);
}

.section--dark .quote-block cite {
  color: var(--color-grey-300);
}

/* ========================================
   Credentials Row
   ======================================== */

.credentials {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2.5rem;
}

.credential {
  text-align: center;
  padding: 2rem 1.5rem;
}

.credential h4 {
  margin-bottom: 0.75rem;
  font-family: var(--font-heading);
}

.credential p {
  font-size: 0.9rem;
}

/* ========================================
   Notable Work / Clients
   ======================================== */

.notable-list {
  columns: 2;
  column-gap: 3rem;
  list-style: none;
}

.notable-list li {
  padding: 0.75rem 0;
  border-bottom: 1px solid #e8e8e8;
  font-size: 0.95rem;
  color: var(--color-grey-700);
  break-inside: avoid;
}

.notable-list li strong {
  color: var(--color-black);
}

@media (max-width: 600px) {
  .notable-list { columns: 1; }
}

/* ========================================
   Contact Form
   ======================================== */

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-grid .full-width {
  grid-column: 1 / -1;
}

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

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  color: var(--color-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  border: 1.5px solid var(--color-grey-300);
  background: var(--color-white);
  color: var(--color-dark);
  transition: border-color 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-accent);
}

.form-group textarea {
  min-height: 160px;
  resize: vertical;
}

/* ========================================
   Blog Cards
   ======================================== */

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.blog-card {
  border: 1px solid #e8e8e8;
  overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

.blog-card__image {
  background: var(--color-grey-100);
  height: 200px;
}

.blog-card__body {
  padding: 1.5rem;
}

.blog-card__date {
  font-size: 0.78rem;
  color: var(--color-grey-500);
  margin-bottom: 0.75rem;
}

.blog-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}

.blog-card p {
  font-size: 0.9rem;
}

/* ========================================
   Footer
   ======================================== */

.footer {
  background: var(--color-black);
  color: var(--color-grey-300);
  padding: 4rem 0 2rem;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

@media (max-width: 768px) {
  .footer__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

.footer__brand .nav__logo {
  margin-bottom: 1rem;
  display: inline-block;
}

.footer__brand p {
  color: var(--color-grey-500);
  font-size: 0.9rem;
  max-width: 360px;
}

.footer h4 {
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.footer__links {
  list-style: none;
}

.footer__links li {
  margin-bottom: 0.6rem;
}

.footer__links a {
  font-size: 0.9rem;
  color: var(--color-grey-500);
  transition: color 0.2s;
}

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

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer__bottom p {
  font-size: 0.8rem;
  color: var(--color-grey-500);
  margin: 0;
}

.footer__contact-info {
  font-size: 0.8rem;
  color: var(--color-grey-500);
}

.footer__contact-info a {
  color: var(--color-accent);
}

/* ========================================
   Utility
   ======================================== */

.text-center { text-align: center; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }
.mb-4 { margin-bottom: 4rem; }
.mt-2 { margin-top: 2rem; }
.mt-4 { margin-top: 4rem; }

.spacer { height: var(--nav-height); }

/* Divider line */
.divider {
  width: 60px;
  height: 2px;
  background: var(--color-accent);
  margin: 1.5rem 0;
}

.divider--center {
  margin-left: auto;
  margin-right: auto;
}

/* Purposes table */
.purposes-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 2rem;
}

.purposes-table th,
.purposes-table td {
  text-align: left;
  padding: 1rem 1.25rem;
  font-size: 0.92rem;
  border-bottom: 1px solid #e8e8e8;
}

.purposes-table th {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-grey-500);
  background: var(--color-grey-100);
}

.purposes-table td {
  color: var(--color-grey-700);
}

.purposes-table td:first-child {
  font-weight: 600;
  color: var(--color-dark);
}

/* Items list grid */
.items-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.items-grid__item {
  padding: 1.25rem;
  background: var(--color-grey-100);
  font-size: 0.92rem;
  color: var(--color-grey-700);
  border-left: 3px solid var(--color-accent);
}

/* ========================================
   Nav Dropdowns
   ======================================== */

.nav__dropdown {
  position: relative;
}

.nav__dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-grey-300);
  transition: color 0.2s;
  white-space: nowrap;
  padding: 0;
}

.nav__dropdown-toggle:hover {
  color: var(--color-white);
}

.nav__dropdown-toggle::after {
  content: '\25BE';
  font-size: 0.7rem;
  margin-top: 1px;
}

.nav__dropdown-menu {
  position: absolute;
  top: calc(100% + 0.75rem);
  left: 0;
  background: var(--color-black);
  border: 1px solid rgba(255,255,255,0.1);
  min-width: 220px;
  padding: 0.5rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
  z-index: 100;
}

.nav__dropdown:hover .nav__dropdown-menu,
.nav__dropdown.open .nav__dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav__dropdown-menu a {
  display: block;
  padding: 0.55rem 1.25rem;
  font-size: 0.82rem;
  color: var(--color-grey-300);
  transition: background 0.15s, color 0.15s;
}

.nav__dropdown-menu a:hover {
  background: rgba(255,255,255,0.06);
  color: var(--color-white);
}

.nav__dropdown-menu .menu-label {
  display: block;
  padding: 0.5rem 1.25rem 0.25rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  pointer-events: none;
}

.nav__dropdown-menu .menu-divider {
  height: 1px;
  background: rgba(255,255,255,0.08);
  margin: 0.4rem 0;
}

/* Mobile dropdown */
@media (max-width: 900px) {
  .nav__dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    border: none;
    padding: 0 0 0 1rem;
    min-width: 0;
    display: none;
  }

  .nav__dropdown.open .nav__dropdown-menu {
    display: block;
  }

  .nav__dropdown-toggle::after {
    content: '+';
    font-size: 0.9rem;
  }

  .nav__dropdown.open .nav__dropdown-toggle::after {
    content: '\2212';
  }
}

/* ========================================
   Resource / Article Pages
   ======================================== */

.article-narrow {
  max-width: 740px;
  margin: 0 auto;
  padding: 3rem 2rem 5rem;
}

.article-narrow .section-label {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
}

.article-narrow h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 1.25rem;
}

.article-narrow h1 em {
  font-style: italic;
}

.article-narrow .lede {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--color-grey-700);
  margin-bottom: 2rem;
}

.article-narrow .rule {
  border: none;
  border-top: 1px solid #e0e0e0;
  margin: 2.5rem 0;
}

.article-narrow h2 {
  font-size: 1.4rem;
  margin: 2.5rem 0 1rem;
}

.article-narrow p {
  font-size: 0.95rem;
  line-height: 1.8;
}

/* Callout box (resource articles) */
.article-callout {
  border-left: 3px solid var(--color-accent);
  background: var(--color-grey-100);
  padding: 1.5rem 1.75rem;
  margin: 2rem 0;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-style: italic;
  line-height: 1.6;
  color: var(--color-dark);
}

.article-callout cite {
  display: block;
  margin-top: 0.75rem;
  font-family: var(--font-body);
  font-style: normal;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
}

/* Card grid (resource articles) */
.article-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  margin: 2rem 0;
}

.article-card {
  border: 1px solid #e0e0e0;
  padding: 1.5rem;
}

.article-card .card-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.article-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.6rem;
}

.article-card p {
  font-size: 0.88rem;
}

/* IRS box (donation guide) */
.irs-box {
  background: var(--color-grey-100);
  border: 1px solid #e0e0e0;
  padding: 2rem;
  margin: 2rem 0;
}

.irs-box .irs-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.irs-box h3 {
  font-size: 1.15rem;
  margin-bottom: 1rem;
}

.irs-box .irs-rules {
  list-style: none;
  padding: 0;
}

.irs-box .irs-rules li {
  padding: 0.4rem 0 0.4rem 1.25rem;
  position: relative;
  font-size: 0.9rem;
  color: var(--color-grey-700);
}

.irs-box .irs-rules li::before {
  content: '\2022';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: bold;
}

/* Compare grid (auction vs appraisal) */
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin: 2rem 0;
  border: 1px solid #e0e0e0;
}

.compare-header {
  padding: 1rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.compare-header.auction {
  background: var(--color-grey-100);
  color: var(--color-grey-700);
}

.compare-header.formal {
  background: var(--color-black);
  color: var(--color-white);
}

.compare-cell {
  padding: 0.85rem 1.25rem;
  font-size: 0.88rem;
  border-bottom: 1px solid #e8e8e8;
}

.compare-cell strong {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
}

.compare-cell.auction {
  background: var(--color-white);
  color: var(--color-grey-700);
}

.compare-cell.formal {
  background: #f9f9f9;
  color: var(--color-dark);
}

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

/* Steps (donation guide) */
.steps {
  margin: 2rem 0;
}

.step {
  display: flex;
  gap: 1.5rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid #e8e8e8;
}

.step-number {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
  flex-shrink: 0;
  width: 2.5rem;
}

.step h3 {
  font-size: 1rem;
  margin-bottom: 0.4rem;
}

.step p {
  font-size: 0.88rem;
}

/* Verdict box */
.verdict {
  background: var(--color-black);
  color: var(--color-white);
  padding: 2rem;
  margin: 2.5rem 0;
}

.verdict .verdict-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.verdict p {
  color: var(--color-grey-300);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Article CTA */
.article-cta {
  border-top: 1px solid #e0e0e0;
  margin-top: 3rem;
  padding-top: 2rem;
}

.article-cta h3 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.btn--outline-dark {
  display: inline-block;
  padding: 0.75rem 1.8rem;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  border: 1.5px solid var(--color-dark);
  color: var(--color-dark);
  background: transparent;
  transition: all 0.2s;
}

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