/* ============================================================
   SILVER WINGS — INNER PAGES STYLES
   ============================================================ */

/* ── PAGE HERO (shared) ──────────────────────────────────── */
.page-hero {
  padding-top: calc(var(--nav-h) + clamp(4rem, 8vw, 7rem));
  padding-bottom: clamp(4rem, 7vw, 6rem);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.page-hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 80% 50%, rgba(232,134,42,0.06) 0%, transparent 55%),
    var(--bg);
  z-index: 0;
}
.page-hero__content { position: relative; z-index: 1; }
.page-hero__eyebrow { margin-bottom: 1.5rem; }
.page-hero__headline { margin-bottom: 1.5rem; }
.page-hero__sub {
  font-size: clamp(1rem, 1.4vw, 1.1875rem);
  color: var(--grey-400);
  max-width: 640px;
  line-height: 1.65;
}

/* ── WORK INDEX ──────────────────────────────────────────── */
.work-filters {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 3rem;
}
.filter-btn {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 0.5em 1.2em;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  color: var(--grey-400);
  transition: all 0.2s;
  background: transparent;
}
.filter-btn:hover,
.filter-btn.active {
  border-color: var(--amber);
  color: var(--amber);
  background: var(--amber-dim);
}

.work-index-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.25rem;
}
.work-index-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-card);
  position: relative;
  cursor: none;
  transition: transform 0.4s var(--ease-out), opacity 0.4s;
}
.work-index-card.hidden {
  display: none;
}
.work-index-card--a { grid-column: span 7; min-height: 480px; }
.work-index-card--b { grid-column: span 5; min-height: 480px; }
.work-index-card--c { grid-column: span 4; min-height: 320px; }
.work-index-card--d { grid-column: span 4; min-height: 320px; }
.work-index-card--e { grid-column: span 4; min-height: 320px; }
.work-index-card--f { grid-column: span 6; min-height: 360px; }
.work-index-card--g { grid-column: span 6; min-height: 360px; }

.work-index-card:hover { transform: translateY(-6px); }
.work-index-card:hover .work-card__img { transform: scale(1.05); }
.work-index-card:hover .work-card__overlay { opacity: 1; }
.work-index-card:hover .work-card__arrow { transform: translateX(0) translateY(0); opacity: 1; }

/* Filtered view — drop the bento spans for an even, deliberate grid */
.work-index-grid--filtered {
  grid-template-columns: repeat(3, 1fr);
}
.work-index-grid--filtered .work-index-card {
  grid-column: auto;
  min-height: 360px;
}
.work-empty {
  display: none;
  padding: clamp(3rem, 7vw, 5rem) 0;
  text-align: center;
  color: var(--grey-400);
  font-size: 1rem;
}
.work-empty.is-visible { display: block; }
.work-empty button {
  color: var(--amber);
  font: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ── CASE STUDY ──────────────────────────────────────────── */
.case-hero {
  min-height: 75vh;
  display: flex;
  align-items: flex-end;
  padding-bottom: clamp(3rem, 6vw, 5rem);
  padding-top: var(--nav-h);
  position: relative;
  overflow: hidden;
}
.case-hero__img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
.case-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(12,12,12,0.95) 0%, rgba(12,12,12,0.4) 60%, rgba(12,12,12,0.1) 100%);
}
.case-hero__content {
  position: relative;
  z-index: 1;
  width: 100%;
}
.case-hero__client { margin-bottom: 1rem; }
.case-hero__title { margin-bottom: 1rem; }
.case-hero__tagline {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  color: var(--grey-400);
  max-width: 600px;
}

.case-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
}
.case-meta__item {
  padding: 1.75rem 2rem;
  border-right: 1px solid var(--border);
}
.case-meta__item:last-child { border-right: none; }
.case-meta__label {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--grey-600);
  margin-bottom: 0.5rem;
}
.case-meta__value {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
}

.case-section { padding: clamp(4rem, 7vw, 6rem) 0; }
.case-section + .case-section { border-top: 1px solid var(--border); }
.case-section__label {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 1.5rem;
}
.case-section__body {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: clamp(3rem, 6vw, 7rem);
  align-items: start;
}
.case-section__heading {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  position: sticky;
  top: calc(var(--nav-h) + 2rem);
}
.case-section__text {
  font-size: 1.0625rem;
  color: var(--grey-400);
  line-height: 1.75;
}
.case-section__text p + p { margin-top: 1.25rem; }

.case-gallery {
  display: grid;
  gap: 1.25rem;
  padding: clamp(4rem, 7vw, 6rem) 0;
}
.case-gallery--2col { grid-template-columns: 1fr 1fr; }
.case-gallery--3col { grid-template-columns: 1fr 1fr 1fr; }
.case-gallery--hero { grid-template-columns: 2fr 1fr; }
.case-gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-md);
  aspect-ratio: 16/10;
}
.case-gallery img.tall { aspect-ratio: 3/4; }

.case-next {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: clamp(3rem, 6vw, 5rem) 0;
}
.case-next__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.case-next__label {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--grey-600);
  margin-bottom: 0.75rem;
}
.case-next__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  transition: color 0.2s;
}
.case-next:hover .case-next__title { color: var(--amber); }
.case-next__arrow {
  width: 56px; height: 56px;
  border: 1.5px solid var(--border-hover);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  flex-shrink: 0;
  transition: all 0.3s var(--ease-out);
}
.case-next:hover .case-next__arrow {
  background: var(--amber);
  border-color: var(--amber);
  color: #000;
  transform: translateX(6px);
}

/* ── CAPABILITIES PAGE ───────────────────────────────────── */
.practices {
  display: flex;
  flex-direction: column;
}
.practice-item {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: clamp(3rem, 6vw, 8rem);
  padding: clamp(4rem, 7vw, 6rem) 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}
.practice-item:first-child { border-top: 1px solid var(--border); }
.practice-item__left { position: sticky; top: calc(var(--nav-h) + 2rem); }
.practice-item__num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--amber);
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
}
.practice-item__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
  margin-bottom: 0.75rem;
}
.practice-item__subtitle {
  font-size: 1rem;
  color: var(--grey-400);
  font-style: italic;
}
.practice-item__right {}
.practice-item__intro {
  font-size: clamp(1rem, 1.3vw, 1.125rem);
  color: var(--grey-400);
  line-height: 1.75;
  margin-bottom: 2.5rem;
}
.practice-item__what-title {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--grey-600);
  margin-bottom: 1rem;
}
.practice-item__list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.practice-item__list li {
  font-size: 0.9375rem;
  color: var(--grey-400);
  padding-left: 1.25rem;
  position: relative;
}
.practice-item__list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--amber);
}
.practice-item__work {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.875rem;
  color: var(--grey-600);
}
.practice-item__work span { color: var(--grey-400); }
.practice-item--featured .practice-item__title { color: var(--amber); }

/* ── AI PAGE ─────────────────────────────────────────────── */
.ai-argument {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
}
.ai-argument__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.ai-argument__item {
  background: var(--bg-card);
  padding: 2.5rem 2rem;
}
.ai-argument__num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
  line-height: 1;
}
.ai-argument__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}
.ai-argument__text { font-size: 0.9375rem; color: var(--grey-400); line-height: 1.65; }

.ai-lines {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}
.ai-line-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2.5rem 2rem;
  transition: border-color 0.3s, background 0.3s, transform 0.3s var(--ease-out);
}
.ai-line-card:hover {
  border-color: rgba(232,134,42,0.3);
  background: var(--bg-elevated);
  transform: translateY(-4px);
}
.ai-line-card__num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--amber);
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
}
.ai-line-card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}
.ai-line-card__body { font-size: 0.9375rem; color: var(--grey-400); line-height: 1.65; }

.ai-principles {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
}
.ai-principles__list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.ai-principle {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}
.ai-principle:first-child { border-top: 1px solid var(--border); }
.ai-principle__dash { color: var(--amber); font-size: 1rem; margin-top: 0.15rem; }
.ai-principle__text { font-size: 1.0625rem; color: var(--grey-400); line-height: 1.65; }

/* ── STUDIO PAGE ─────────────────────────────────────────── */
.studio-beliefs {
  display: flex;
  flex-direction: column;
}
.belief-item {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 2rem;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}
.belief-item:first-child { border-top: 1px solid var(--border); }
.belief-num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: 0.06em;
  padding-top: 0.25rem;
}
.belief-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}
.belief-body { font-size: 0.9375rem; color: var(--grey-400); line-height: 1.65; }

.offices-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.office-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2.25rem 2rem;
  transition: border-color 0.3s, transform 0.3s var(--ease-out);
}
.office-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}
.office-card__city {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}
.office-card__role {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--amber);
  margin-bottom: 1.25rem;
}
.office-card__details { font-size: 0.875rem; color: var(--grey-400); line-height: 1.7; }

/* ── THINKING (BLOG INDEX) ───────────────────────────────── */
.thinking-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.thinking-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s var(--ease-out);
}
.thinking-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-5px);
}
.thinking-card__body { padding: 1.75rem; }
.thinking-card__num { color: var(--amber); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em; margin-bottom: 1rem; }
.thinking-card__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.35;
  margin-bottom: 0.75rem;
}
.thinking-card__excerpt { font-size: 0.875rem; color: var(--grey-400); line-height: 1.6; }
.thinking-card__footer {
  padding: 1.25rem 1.75rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.thinking-card__read-time { font-size: 0.75rem; color: var(--grey-600); text-transform: uppercase; letter-spacing: 0.06em; }
.thinking-card__cta { font-size: 0.8125rem; color: var(--amber); font-weight: 500; }

/* ── CAREERS ─────────────────────────────────────────────── */
.careers-perks {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 4rem;
}
.perk-item {
  background: var(--bg-card);
  padding: 2rem;
  font-size: 0.9375rem;
  color: var(--grey-400);
  line-height: 1.6;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.perk-item::before {
  content: '✓';
  color: var(--amber);
  font-size: 0.875rem;
  margin-top: 0.1rem;
  flex-shrink: 0;
}

.open-roles {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
}
.roles-list { display: flex; flex-direction: column; }
.role-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left 0.3s var(--ease-out);
}
.role-item:first-child { border-top: 1px solid var(--border); }
.role-item:hover { padding-left: 0.75rem; }
.role-item__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.role-item__meta { display: flex; gap: 1rem; }
.role-item__tag {
  font-size: 0.75rem;
  color: var(--grey-400);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  padding: 0.3em 0.8em;
  border-radius: var(--radius-pill);
}
.role-item__apply {
  font-size: 0.875rem;
  color: var(--amber);
  font-weight: 500;
  white-space: nowrap;
}

/* ── CONTACT ─────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 8rem);
  align-items: start;
}
.contact-form { display: flex; flex-direction: column; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: 0.5rem; }
.form-label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--grey-400);
}
.form-input,
.form-textarea,
.form-select {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.875rem 1.125rem;
  color: var(--white);
  font-size: 0.9375rem;
  transition: border-color 0.2s, background 0.2s;
  width: 100%;
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--amber);
  background: var(--bg-elevated);
}
.form-input::placeholder,
.form-textarea::placeholder { color: var(--grey-600); }
.form-textarea { min-height: 140px; resize: vertical; }
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23888' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}
.form-select option { background: var(--bg-2); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.form-submit { margin-top: 0.5rem; align-self: flex-start; }
.form-input.is-invalid,
.form-textarea.is-invalid,
.form-select.is-invalid {
  border-color: #ff6b6b;
  background: rgba(255,107,107,0.06);
}
.form-error {
  display: none;
  color: #ff8a8a;
  font-size: 0.875rem;
  line-height: 1.5;
  margin-top: -0.25rem;
}
.form-error.is-visible { display: block; }

.contact-info { padding-top: 0.5rem; }
.contact-info__heading { margin-bottom: 2rem; }
.contact-offices { display: flex; flex-direction: column; gap: 2rem; }
.contact-office__city {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
}
.contact-office__details { font-size: 0.9375rem; color: var(--grey-400); line-height: 1.7; }
.contact-office__details a { color: var(--amber); transition: opacity 0.2s; }
.contact-office__details a:hover { opacity: 0.8; }
.contact-email {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  margin-top: 1rem;
}
.contact-email__address {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--amber);
  letter-spacing: -0.01em;
}

/* ── 404 PAGE ─────────────────────────────────────────────── */
.page-404 {
  min-height: 100svh;
  display: flex;
  align-items: center;
  text-align: center;
}
.page-404__num {
  font-family: var(--font-display);
  font-size: clamp(6rem, 20vw, 14rem);
  font-weight: 700;
  letter-spacing: -0.05em;
  line-height: 0.9;
  color: var(--grey-700);
  margin-bottom: 2rem;
}
.page-404__links { display: flex; gap: 1rem; justify-content: center; margin-top: 2rem; flex-wrap: wrap; }

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 1024px) {
  .ai-argument__grid { grid-template-columns: 1fr; }
  .ai-lines { grid-template-columns: 1fr; }
  .case-meta { grid-template-columns: repeat(2, 1fr); }
  .offices-grid { grid-template-columns: 1fr 1fr; }
  .thinking-grid { grid-template-columns: repeat(2, 1fr); }
  .work-index-grid--filtered { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .work-index-card--a, .work-index-card--b, .work-index-card--c,
  .work-index-card--d, .work-index-card--e, .work-index-card--f,
  .work-index-card--g { grid-column: span 12; min-height: 260px; }
  .work-index-grid--filtered { grid-template-columns: 1fr; }
  .work-index-grid--filtered .work-index-card { min-height: 260px; }
  .practice-item { grid-template-columns: 1fr; }
  .practice-item__left { position: static; }
  .case-section__body { grid-template-columns: 1fr; }
  .case-section__heading { position: static; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .offices-grid { grid-template-columns: 1fr; }
  .thinking-grid { grid-template-columns: 1fr; }
  .careers-perks { grid-template-columns: 1fr; }
  .case-gallery--2col, .case-gallery--3col, .case-gallery--hero { grid-template-columns: 1fr; }
  .case-meta { grid-template-columns: repeat(2, 1fr); }
  .role-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .role-item:hover { padding-left: 0; }
  .case-next__inner { flex-direction: column; align-items: flex-start; gap: 1.5rem; }
}
@media (max-width: 480px) {
  .case-meta { grid-template-columns: 1fr; }
  .case-meta__item { border-right: none; border-bottom: 1px solid var(--border); }
  .case-meta__item:last-child { border-bottom: none; }
}