/* ============================================
   ALLENCREST GROUP — Design Tokens & Styles
   ============================================ */

/* --- Type Scale --- */
:root {
  --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 (4px base) --- */
  --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;

  /* --- Font Families --- */
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'Switzer', 'Helvetica Neue', Arial, 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);

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

/* --- Light Mode --- */
:root,
[data-theme='light'] {
  --color-bg: #f8f9fa;
  --color-surface: #ffffff;
  --color-surface-2: #f1f3f5;
  --color-surface-offset: #e9ecef;
  --color-divider: #dee2e6;
  --color-border: #ced4da;
  --color-text: #2b3a4e;
  --color-text-muted: #6c7a89;
  --color-text-faint: #adb5bd;
  --color-text-inverse: #f8f9fa;
  --color-primary: #01696f;
  --color-primary-hover: #015458;
  --color-primary-active: #013e42;
  --color-primary-highlight: #d0e8ea;
  --shadow-sm: 0 1px 2px rgba(43, 58, 78, 0.06);
  --shadow-md: 0 4px 12px rgba(43, 58, 78, 0.08);
  --shadow-lg: 0 12px 32px rgba(43, 58, 78, 0.12);
}

/* --- Dark Mode --- */
[data-theme='dark'] {
  --color-bg: #141b22;
  --color-surface: #1a2330;
  --color-surface-2: #1f2a38;
  --color-surface-offset: #1c2531;
  --color-divider: #253040;
  --color-border: #2d3a4c;
  --color-text: #d1d8e0;
  --color-text-muted: #8895a5;
  --color-text-faint: #556070;
  --color-text-inverse: #141b22;
  --color-primary: #3fa8b0;
  --color-primary-hover: #2d949c;
  --color-primary-active: #1d7f87;
  --color-primary-highlight: #1e3038;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.4);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #141b22;
    --color-surface: #1a2330;
    --color-surface-2: #1f2a38;
    --color-surface-offset: #1c2531;
    --color-divider: #253040;
    --color-border: #2d3a4c;
    --color-text: #d1d8e0;
    --color-text-muted: #8895a5;
    --color-text-faint: #556070;
    --color-text-inverse: #141b22;
    --color-primary: #3fa8b0;
    --color-primary-hover: #2d949c;
    --color-primary-active: #1d7f87;
    --color-primary-highlight: #1e3038;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.4);
  }
}

/* ============================================
   LAYOUT — GLOBAL
   ============================================ */

.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

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

/* ============================================
   SKIP LINK
   ============================================ */

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

/* ============================================
   HEADER / NAV
   ============================================ */

.header {
  position: sticky;
  top: 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: box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.header--scrolled {
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-3);
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
}
.header__logo {
  height: 36px;
  width: auto;
}
.header__wordmark {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.header__nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  letter-spacing: 0.02em;
  position: relative;
  padding: var(--space-1) 0;
}
.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-primary);
  transition: width 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
.header__nav-link:hover {
  color: var(--color-text);
}
.header__nav-link:hover::after {
  width: 100%;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  cursor: pointer;
}
.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface-2);
}

/* Mobile menu */
.mobile-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--color-text);
}
.mobile-nav {
  display: none;
}

@media (max-width: 768px) {
  .header__nav {
    display: none;
  }
  .mobile-menu-btn {
    display: flex;
  }
  .mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100dvh;
    background: var(--color-bg);
    z-index: 100;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-8);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
  }
  .mobile-nav.is-open {
    display: flex;
    opacity: 1;
    pointer-events: auto;
  }
  .mobile-nav__close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
  }
  .mobile-nav__link {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    color: var(--color-text);
    text-decoration: none;
  }
  .mobile-nav__link:hover,
  .mobile-nav__link:active {
    color: var(--color-primary);
  }
}

/* ============================================
   HERO
   ============================================ */

.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-block: var(--space-16);
}
.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;
  z-index: 1;
}

/* Light mode overlay */
:root .hero__overlay,
[data-theme='light'] .hero__overlay {
  background: linear-gradient(
    135deg,
    rgba(248, 249, 250, 0.92) 0%,
    rgba(248, 249, 250, 0.75) 50%,
    rgba(248, 249, 250, 0.5) 100%
  );
}

/* Dark mode overlay */
[data-theme='dark'] .hero__overlay {
  background: linear-gradient(
    135deg,
    rgba(20, 27, 34, 0.94) 0%,
    rgba(20, 27, 34, 0.8) 50%,
    rgba(20, 27, 34, 0.55) 100%
  );
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .hero__overlay {
    background: linear-gradient(
      135deg,
      rgba(20, 27, 34, 0.94) 0%,
      rgba(20, 27, 34, 0.8) 50%,
      rgba(20, 27, 34, 0.55) 100%
    );
  }
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}
.hero__tagline {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: var(--space-6);
  line-height: 1.05;
}
.hero__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-8);
  max-width: 560px;
}

.btn {
  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: 600;
  letter-spacing: 0.04em;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  border: none;
}
.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
}
.btn--primary:active {
  background: var(--color-primary-active);
}
.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn--outline:hover {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.btn__arrow {
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
.btn:hover .btn__arrow {
  transform: translateX(3px);
}

/* ============================================
   SECTION SHARED
   ============================================ */

.section-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.section-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.section-subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 600px;
  line-height: 1.65;
}

/* ============================================
   STRATEGY
   ============================================ */

.strategy {
  background: var(--color-bg);
}

.strategy__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-10);
}

.strategy-card {
  background: var(--color-surface);
  border: 1px solid oklch(from var(--color-text) l c h / 0.08);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.strategy-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.strategy-card__number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-primary);
  margin-bottom: var(--space-3);
  opacity: 0.6;
}
.strategy-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.strategy-card__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* Target Profile */
.target-profile {
  margin-top: var(--space-12);
  background: var(--color-surface);
  border: 1px solid oklch(from var(--color-text) l c h / 0.08);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}
.target-profile__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-6);
}
.target-profile__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-6);
}
.target-profile__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.target-profile__label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}
.target-profile__value {
  font-size: var(--text-sm);
  color: var(--color-text);
  font-weight: 500;
}

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

/* ============================================
   PORTFOLIO
   ============================================ */

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

.portfolio__text {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: var(--space-10);
}

.portfolio__markets {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-10);
}
.market-card {
  background: var(--color-bg);
  border: 1px solid oklch(from var(--color-text) l c h / 0.08);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  transition: box-shadow 0.3s ease;
}
.market-card:hover {
  box-shadow: var(--shadow-md);
}

.market-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: 0 auto var(--space-3);
  color: var(--color-primary);
}
.market-card__city {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-1);
}
.market-card__region {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

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

/* ============================================
   TEAM
   ============================================ */

.team {
  background: var(--color-bg);
}

.team__card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-8);
  background: var(--color-surface);
  border: 1px solid oklch(from var(--color-text) l c h / 0.08);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  max-width: 720px;
  margin-top: var(--space-10);
}
.team__avatar {
  width: 88px;
  height: 88px;
  border-radius: var(--radius-full);
  background: var(--color-primary-highlight);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-primary);
  flex-shrink: 0;
}
.team__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.team__name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
}
.team__role {
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: 500;
}
.team__bio {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-top: var(--space-2);
}

.team__note {
  margin-top: var(--space-6);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-style: italic;
}

@media (max-width: 600px) {
  .team__card {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .team__avatar {
    margin: 0 auto;
  }
}

/* ============================================
   CONTACT / FOOTER
   ============================================ */

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

.contact__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  margin-top: var(--space-10);
}

.contact__info-heading {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.contact__email {
  font-size: var(--text-base);
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}
.contact__email:hover {
  text-decoration: underline;
}
.contact__address {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-4);
  line-height: 1.6;
}

/* Form */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
.form__field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.form__label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.form__input,
.form__textarea {
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  border: 1px solid oklch(from var(--color-text) l c h / 0.12);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  transition: border-color 0.2s ease;
}
.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}
.form__textarea {
  min-height: 120px;
  resize: vertical;
}

.form__checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.form__checkbox input[type='checkbox'] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  cursor: pointer;
}
.form__checkbox label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  cursor: pointer;
}

.form__submit {
  align-self: flex-start;
}

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

/* ============================================
   FOOTER
   ============================================ */

.footer {
  background: var(--color-bg);
  padding-block: var(--space-8);
  border-top: 1px solid oklch(from var(--color-text) l c h / 0.08);
}
.footer__inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
.footer__legal {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-bottom: var(--space-3);
}
.footer__disclaimer {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  line-height: 1.6;
  max-width: 800px;
}

/* ============================================
   SCROLL REVEAL
   ============================================ */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}