/* ===================================
   APERTURE CONSULTING — Design Tokens
   =================================== */

:root {
  /* Type Scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Fonts */
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'Switzer', 'Helvetica Neue', sans-serif;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;
}

/* ===================================
   LIGHT MODE (default)
   =================================== */
:root,
[data-theme='light'] {
  /* Surfaces — warm sandstone */
  --color-bg: #f7f4f0;
  --color-surface: #faf8f5;
  --color-surface-2: #ffffff;
  --color-surface-offset: #f0ece6;
  --color-surface-offset-2: #e8e3dc;
  --color-divider: #d9d2c9;
  --color-border: #cdc5ba;

  /* Text */
  --color-text: #2a2218;
  --color-text-muted: #6b5d4f;
  --color-text-faint: #a0937f;
  --color-text-inverse: #faf8f5;

  /* Primary — burnt orange */
  --color-primary: #c45a20;
  --color-primary-hover: #a84b18;
  --color-primary-active: #8d3d12;
  --color-primary-highlight: #f5dece;

  /* Accent — warm amber */
  --color-accent: #d4882a;
  --color-accent-hover: #b87422;

  /* Shadows */
  --shadow-sm: 0 1px 2px oklch(0.2 0.04 60 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.2 0.04 60 / 0.08);
  --shadow-lg: 0 12px 32px oklch(0.2 0.04 60 / 0.12);
}

/* ===================================
   DARK MODE
   =================================== */
[data-theme='dark'] {
  --color-bg: #1a1714;
  --color-surface: #201c18;
  --color-surface-2: #262119;
  --color-surface-offset: #231e1a;
  --color-surface-offset-2: #2a2420;
  --color-divider: #332c26;
  --color-border: #433a32;

  --color-text: #d5cec5;
  --color-text-muted: #8a7f72;
  --color-text-faint: #665c50;
  --color-text-inverse: #201c18;

  --color-primary: #e0783a;
  --color-primary-hover: #c96a2e;
  --color-primary-active: #b25c24;
  --color-primary-highlight: #3a2a1e;

  --color-accent: #e8a04a;
  --color-accent-hover: #d08e3c;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #1a1714;
    --color-surface: #201c18;
    --color-surface-2: #262119;
    --color-surface-offset: #231e1a;
    --color-surface-offset-2: #2a2420;
    --color-divider: #332c26;
    --color-border: #433a32;
    --color-text: #d5cec5;
    --color-text-muted: #8a7f72;
    --color-text-faint: #665c50;
    --color-text-inverse: #201c18;
    --color-primary: #e0783a;
    --color-primary-hover: #c96a2e;
    --color-primary-active: #b25c24;
    --color-primary-highlight: #3a2a1e;
    --color-accent: #e8a04a;
    --color-accent-hover: #d08e3c;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
    --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
    --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
  }
}

/* ===================================
   GLOBAL TYPOGRAPHY
   =================================== */
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  color: var(--color-text);
}

.section-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

/* ===================================
   LAYOUT
   =================================== */
.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-8);
  }
}

.section {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
}

/* ===================================
   SKIP LINK
   =================================== */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  text-decoration: none;
}
.skip-link:focus {
  top: var(--space-2);
}

/* ===================================
   HEADER / NAV
   =================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.08);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.header--scrolled {
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

@media (min-width: 768px) {
  .header__inner {
    padding-inline: var(--space-8);
  }
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
}

.logo__mark {
  flex-shrink: 0;
}

.logo__text {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.2;
}

.logo__text span {
  display: block;
  font-weight: 400;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.nav {
  display: none;
  align-items: center;
  gap: var(--space-8);
}

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

.nav__link {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  letter-spacing: 0.03em;
  transition: color var(--transition-interactive);
}

.nav__link:hover {
  color: var(--color-text);
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-inverse);
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background var(--transition-interactive), transform var(--transition-interactive);
}

.nav__cta:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.nav__cta:active {
  transform: translateY(0);
}

/* Theme toggle */
.theme-toggle {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  transition: color var(--transition-interactive), background var(--transition-interactive);
}

.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface-offset);
}

/* Mobile menu button */
.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--color-text);
}

@media (min-width: 768px) {
  .mobile-menu-btn {
    display: none;
  }
}

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  z-index: 49;
  padding: var(--space-8) var(--space-6);
  flex-direction: column;
  gap: var(--space-6);
}

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

.mobile-nav__link {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-divider);
}

.mobile-nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text-inverse);
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  text-decoration: none;
  margin-top: var(--space-4);
}

/* ===================================
   HERO
   =================================== */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  margin-top: 72px;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    oklch(0.12 0.03 50 / 0.85) 0%,
    oklch(0.12 0.03 50 / 0.45) 40%,
    oklch(0.12 0.03 50 / 0.15) 70%,
    oklch(0.12 0.03 50 / 0.05) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: var(--space-12) var(--space-4) var(--space-16);
  width: 100%;
}

@media (min-width: 768px) {
  .hero__content {
    padding: var(--space-16) var(--space-8) var(--space-20);
  }
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 400;
  color: #f5f4f0;
  line-height: 1.05;
  margin-bottom: var(--space-6);
  max-width: 14ch;
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: oklch(0.85 0.02 50);
  max-width: 48ch;
  line-height: 1.6;
  margin-bottom: var(--space-8);
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: #f5f4f0;
  background: transparent;
  border: 1px solid oklch(1 0 0 / 0.35);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background var(--transition-interactive), border-color var(--transition-interactive), transform var(--transition-interactive);
}

.hero__cta:hover {
  background: oklch(1 0 0 / 0.1);
  border-color: oklch(1 0 0 / 0.6);
  transform: translateY(-1px);
}

.hero__cta:active {
  transform: translateY(0);
}

.hero__cta svg {
  width: 16px;
  height: 16px;
}

.hero__location {
  position: absolute;
  bottom: var(--space-6);
  right: var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: oklch(0.75 0.02 50);
  letter-spacing: 0.05em;
  display: none;
}

@media (min-width: 768px) {
  .hero__location {
    display: block;
  }
}

/* ===================================
   INTRO / ABOUT BAND
   =================================== */
.intro {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
  background: var(--color-surface);
}

.intro__grid {
  display: grid;
  gap: var(--space-10);
  align-items: start;
}

@media (min-width: 768px) {
  .intro__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

.intro__text h2 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-6);
  color: var(--color-text);
}

.intro__text p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  line-height: 1.7;
}

.intro__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  padding-top: var(--space-4);
}

.stat {
  padding: var(--space-6);
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px solid oklch(from var(--color-text) l c h / 0.06);
}

.stat__number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat__label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.intro__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
}

.intro__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===================================
   SERVICES
   =================================== */
.services {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
  background: var(--color-bg);
}

.services__header {
  margin-bottom: var(--space-12);
}

.services__header h2 {
  font-size: var(--text-2xl);
  max-width: 20ch;
}

.services__grid {
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.service-card {
  padding: var(--space-6) var(--space-6) var(--space-8);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid oklch(from var(--color-text) l c h / 0.06);
  transition: box-shadow var(--transition-interactive), transform var(--transition-interactive), border-color var(--transition-interactive);
}

.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: oklch(from var(--color-primary) l c h / 0.2);
}

.service-card:active {
  transform: translateY(0);
}

.service-card__icon {
  width: 40px;
  height: 40px;
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}

.service-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.service-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ===================================
   FULL-BLEED IMAGE DIVIDER
   =================================== */
.image-divider {
  width: 100%;
  aspect-ratio: 21/9;
  overflow: hidden;
  position: relative;
}

@media (max-width: 767px) {
  .image-divider {
    aspect-ratio: 16/9;
  }
}

.image-divider img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-divider__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    oklch(0.12 0.03 50 / 0.7) 0%,
    oklch(0.12 0.03 50 / 0.2) 50%,
    oklch(0.12 0.03 50 / 0) 100%
  );
  display: flex;
  align-items: center;
  padding: var(--space-8);
}

@media (min-width: 768px) {
  .image-divider__overlay {
    padding: var(--space-16);
  }
}

.image-divider__text {
  max-width: 36ch;
}

.image-divider__text blockquote {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: #f5f4f0;
  line-height: 1.3;
  margin-bottom: var(--space-3);
}

.image-divider__text cite {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: oklch(0.75 0.02 50);
  font-style: normal;
  letter-spacing: 0.05em;
}

/* ===================================
   TEAM
   =================================== */
.team {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
  background: var(--color-surface);
}

.team__header {
  margin-bottom: var(--space-12);
}

.team__header h2 {
  font-size: var(--text-2xl);
}

.team__grid {
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .team__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-10);
  }
}

.team-member {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

@media (min-width: 640px) {
  .team-member {
    flex-direction: row;
    gap: var(--space-6);
  }
}

.team-member__photo {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-highlight);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.team-member__info {
  flex: 1;
}

.team-member__name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.team-member__title {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}

.team-member__bio {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
}

.team-member__credentials {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-2);
}

/* ===================================
   CONTACT
   =================================== */
.contact {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
  background: var(--color-bg);
}

.contact__grid {
  display: grid;
  gap: var(--space-10);
}

@media (min-width: 768px) {
  .contact__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

.contact__info h2 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-6);
}

.contact__info p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.contact__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.contact__item-icon {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact__item-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

.contact__item-text a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

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

.contact__item-text strong {
  display: block;
  color: var(--color-text);
  font-weight: 500;
  margin-bottom: var(--space-1);
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--color-text);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px oklch(from var(--color-primary) l c h / 0.12);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

@media (max-width: 480px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-inverse);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-interactive), transform var(--transition-interactive);
  align-self: flex-start;
}

.btn-submit:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.btn-submit:active {
  transform: translateY(0);
}

/* ===================================
   FORM MESSAGES
   =================================== */
.form-message {
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  line-height: 1.5;
  grid-column: 1 / -1;
}

.form-message--success {
  background: oklch(from var(--color-primary) l c h / 0.1);
  color: var(--color-primary);
  border: 1px solid oklch(from var(--color-primary) l c h / 0.2);
}

.form-message--error {
  background: oklch(0.95 0.03 25);
  color: oklch(0.45 0.15 25);
  border: 1px solid oklch(0.85 0.05 25);
}

/* ===================================
   FOOTER
   =================================== */
.footer {
  background: var(--color-text);
  padding: var(--space-10) var(--space-4);
}

@media (min-width: 768px) {
  .footer {
    padding: var(--space-10) var(--space-8);
  }
}

.footer__inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

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

.footer__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.footer__logo-text {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text-inverse);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.footer__copy {
  font-size: var(--text-xs);
  color: oklch(from var(--color-text-inverse) l c h / 0.5);
}

.footer__links {
  display: flex;
  gap: var(--space-6);
}

.footer__link {
  font-size: var(--text-sm);
  color: oklch(from var(--color-text-inverse) l c h / 0.6);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.footer__link:hover {
  color: var(--color-text-inverse);
}

/* ===================================
   SCROLL REVEAL
   =================================== */
.fade-in {
  opacity: 1;
}

@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 80%;
  }
}

@keyframes reveal-fade {
  to {
    opacity: 1;
  }
}