/* ==========================================================================
   layout.css - Container, Grid, Header & Footer
   ========================================================================== */

/* --------------------------------------------------------------------------
   Container & Section Spacing
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

@media (min-width: 768px) {
  .container {
    padding-left: 32px;
    padding-right: 32px;
  }
}

.section {
  padding-top: var(--space-7);
  padding-bottom: var(--space-7);
}

@media (min-width: 900px) {
  .section {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }
}

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

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

.section-header {
  margin-bottom: var(--space-6);
}

/* --------------------------------------------------------------------------
   Grid System (12 columns on desktop, 4 on mobile, gap 24px)
   -------------------------------------------------------------------------- */
.grid-12 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

@media (min-width: 900px) {
  .grid-12 {
    grid-template-columns: repeat(12, 1fr);
  }
}

.col-12 { grid-column: span 4; }
.col-8  { grid-column: span 4; }
.col-7  { grid-column: span 4; }
.col-6  { grid-column: span 4; }
.col-5  { grid-column: span 4; }
.col-4  { grid-column: span 4; }
.col-3  { grid-column: span 4; }

@media (min-width: 900px) {
  .col-12 { grid-column: span 12; }
  .col-8  { grid-column: span 8; }
  .col-7  { grid-column: span 7; }
  .col-6  { grid-column: span 6; }
  .col-5  { grid-column: span 5; }
  .col-4  { grid-column: span 4; }
  .col-3  { grid-column: span 3; }
}

/* --------------------------------------------------------------------------
   Site Header
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
  transition: border-color var(--transition-smooth), box-shadow var(--transition-smooth), background-color var(--transition-smooth);
}

.site-header.is-scrolled {
  border-bottom-color: rgba(15, 23, 42, 0.1);
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: var(--space-4);
}

.site-header__brand,
.site-footer__brand-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  transition: transform var(--transition-smooth), opacity 0.2s ease;
}

.site-header__brand:hover,
.site-footer__brand-link:hover {
  transform: translateY(-1px);
  opacity: 0.92;
}

.site-header__logo-wrap {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.site-header__logo-emblem {
  height: 40px;
  width: auto;
  max-width: 55px;
  object-fit: contain;
  filter: drop-shadow(0 2px 5px rgba(11, 27, 61, 0.12));
  flex-shrink: 0;
}

.site-header__logo-wordmark {
  height: 22px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  flex-shrink: 0;
}

.site-footer__logo-emblem {
  height: 38px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
}

.site-footer__logo-wordmark {
  height: 21px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
}

.site-header__logo-custom {
  max-height: 42px;
  width: auto;
  max-width: 240px;
  object-fit: contain;
  display: block;
}

.site-footer__logo-custom {
  max-height: 40px;
  width: auto;
  max-width: 240px;
  object-fit: contain;
  display: block;
}

@media (max-width: 480px) {
  .site-header__logo-wrap {
    gap: 8px;
  }
  .site-header__logo-emblem {
    height: 34px;
  }
  .site-header__logo-wordmark {
    height: 19px;
    max-width: 135px;
  }
  .site-header__logo-custom {
    max-height: 34px;
    max-width: 180px;
  }
}

.site-header__wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-1);
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.site-header__wordmark:hover {
  color: var(--steel);
}

.site-nav {
  display: none;
}

@media (min-width: 900px) {
  .site-nav {
    display: flex;
    align-items: center;
  }
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__link {
  display: inline-flex;
  align-items: center;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: var(--step-0);
  font-weight: 500;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-s);
  position: relative;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.site-nav__link:hover {
  color: var(--ink);
  background-color: rgba(15, 23, 42, 0.04);
}

.site-nav__link[aria-current="page"] {
  color: var(--brand-navy);
  font-weight: 600;
  background-color: rgba(11, 34, 78, 0.05);
}

.site-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 0.85rem;
  right: 0.85rem;
  height: 2px;
  background: linear-gradient(90deg, var(--brand-navy) 0%, var(--gold-warm) 100%);
  border-radius: 2px;
}

/* Header desktop actions are intentionally hidden so the navigation remains clean, spacious,
   and stable across all pages without layout shift or button pop-in on scroll.
   Mobile devices access these actions inside the mobile sheet drawer. */
.site-header__actions {
  display: none !important;
}

/* --------------------------------------------------------------------------
   Mobile Header & Full-Screen Sheet
   -------------------------------------------------------------------------- */
.mobile-menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: var(--space-2) var(--space-3);
  background-color: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

@media (min-width: 900px) {
  .mobile-menu-toggle {
    display: none;
  }
}

.mobile-menu-toggle:hover {
  background-color: var(--wash);
}

.mobile-sheet {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--surface);
  z-index: 500;
  display: flex;
  flex-direction: column;
  padding: var(--space-5) 20px;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
}

.mobile-sheet.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mobile-sheet__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}

.mobile-sheet__nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.mobile-sheet__link {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  padding: var(--space-2) 0;
}

.mobile-sheet__link[aria-current="page"] {
  color: var(--steel);
}

.mobile-sheet__lamp {
  margin-bottom: var(--space-6);
  padding: var(--space-3) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.mobile-sheet__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: auto;
}

/* --------------------------------------------------------------------------
   Site Footer (3 Equally Divided Columns + Follow Me Social Suite)
   -------------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding-top: var(--space-7);
  padding-bottom: var(--space-4);
  background: var(--panel);
  position: relative;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-7);
}

@media (min-width: 860px) {
  .site-footer__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-7);
    align-items: start;
  }
}

.site-footer__col {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.site-footer__brand-col {
  gap: var(--space-3);
}

.site-footer__tagline {
  font-size: var(--step-0);
  font-weight: 600;
  color: var(--ink);
  line-height: 1.45;
  margin-bottom: 0;
}

.site-footer__mission {
  font-size: var(--step--1);
  color: var(--ink-soft);
  line-height: 1.6;
  margin-bottom: 0;
}

.site-footer__lamp {
  margin-top: var(--space-2);
}

.site-footer__col-header {
  display: flex;
  align-items: center;
  margin-bottom: 0.35rem;
}

.site-footer__col-title {
  font-family: var(--font-display);
  font-size: var(--step-0);
  color: var(--brand-navy);
  letter-spacing: -0.01em;
  font-weight: 700;
  margin-bottom: 0;
}

.site-footer__col-desc {
  font-size: var(--step--1);
  color: var(--ink-soft);
  line-height: 1.5;
  margin-bottom: var(--space-4);
}

/* Col 2: Direct Contact List */
.site-footer__contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.site-footer__contact-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.9rem;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  color: var(--ink);
  text-decoration: none;
  font-size: var(--step--1);
  font-weight: 500;
  transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), color var(--transition-fast);
}

.site-footer__contact-link:hover {
  border-color: var(--gold-deep);
  color: var(--brand-navy);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(11, 27, 61, 0.06);
}

.site-footer__contact-link--static {
  cursor: default;
}

.site-footer__contact-link--static:hover {
  border-color: var(--line);
  color: var(--ink);
  transform: none;
  box-shadow: none;
}

.site-footer__contact-icon {
  width: 18px;
  height: 18px;
  color: var(--brand-navy);
  flex-shrink: 0;
  transition: color var(--transition-fast);
}

.site-footer__contact-link:hover .site-footer__contact-icon {
  color: var(--gold-deep);
}

.site-footer__resume-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  margin-top: 0.85rem;
  padding: 0.65rem 1rem;
  background: linear-gradient(135deg, rgba(253, 185, 19, 0.16) 0%, rgba(245, 158, 11, 0.08) 100%);
  border: 1px solid rgba(253, 185, 19, 0.45);
  border-radius: var(--radius-s);
  color: var(--signal-ink);
  text-decoration: none;
  font-size: var(--step--1);
  font-weight: 600;
  transition: all var(--transition-smooth);
}

.site-footer__resume-link:hover {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--signal-ink);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(253, 185, 19, 0.35);
}

/* Col 3: Follow Me Social Suite */
.site-footer__social-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
}

@media (min-width: 480px) and (max-width: 859px) {
  .site-footer__social-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.social-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.85rem;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  color: var(--ink);
  text-decoration: none;
  position: relative;
  transition: all var(--transition-smooth);
}

.social-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(11, 27, 61, 0.08);
  text-decoration: none;
}

.social-card__icon-box {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

/* Brand specific accents */
.social-card--facebook .social-card__icon-box {
  background: rgba(24, 119, 242, 0.1);
  color: #1877F2;
}
.social-card--facebook:hover {
  border-color: #1877F2;
}
.social-card--facebook:hover .social-card__icon-box {
  background: #1877F2;
  color: #FFFFFF;
}

.social-card--instagram .social-card__icon-box {
  background: rgba(225, 48, 108, 0.1);
  color: #E1306C;
}
.social-card--instagram:hover {
  border-color: #E1306C;
}
.social-card--instagram:hover .social-card__icon-box {
  background: linear-gradient(45deg, #F58529, #DD2A7B, #8134AF);
  color: #FFFFFF;
}

.social-card--github .social-card__icon-box {
  background: rgba(15, 23, 42, 0.08);
  color: #0F172A;
}
.social-card--github:hover {
  border-color: #0F172A;
}
.social-card--github:hover .social-card__icon-box {
  background: #0F172A;
  color: #FFFFFF;
}

.social-card--linkedin .social-card__icon-box {
  background: rgba(10, 102, 194, 0.1);
  color: #0A66C2;
}
.social-card--linkedin:hover {
  border-color: #0A66C2;
}
.social-card--linkedin:hover .social-card__icon-box {
  background: #0A66C2;
  color: #FFFFFF;
}

.social-card__info {
  display: flex;
  flex-direction: column;
  gap: 1px;
  flex-grow: 1;
  min-width: 0;
}

.social-card__name {
  font-size: var(--step--1);
  font-weight: 600;
  color: var(--ink);
  line-height: 1.25;
}

.social-card__meta {
  font-size: 0.75rem;
  color: var(--ink-soft);
  line-height: 1.2;
}

.social-card__arrow {
  font-size: var(--step-0);
  color: var(--ink-soft);
  opacity: 0.45;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.social-card:hover .social-card__arrow {
  opacity: 1;
  color: var(--brand-navy);
  transform: translate(2px, -2px);
}

/* Footer Bottom Bar */
.site-footer__bottom {
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  font-size: var(--step--1);
  color: var(--ink-soft);
}

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

.site-footer__bottom-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.site-footer__bottom-link {
  color: var(--ink-soft);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.site-footer__bottom-link:hover {
  color: var(--gold-deep);
  text-decoration: underline;
}

.site-footer__sep {
  color: var(--line-strong);
}