/* ==========================================================================
   Layout — Isracollect Premium Design System
   Mobile-first responsive layout, header, footer, grid, utilities
   ========================================================================== */

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

.header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-header);
  z-index: var(--z-header);
  transition: box-shadow var(--transition-base), background var(--transition-base);
}

.header__inner {
  max-width: var(--max-width);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

/* --- Logo --- */

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  flex-shrink: 0;
}

.header__logo-img {
  height: 36px;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition-base);
}

.header__logo:hover .header__logo-img {
  transform: scale(1.04);
}

/* --- Nav --- */

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

@media (min-width: 1024px) {
  .header__nav {
    display: flex;
  }
}

.header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--brand-500);
  border-radius: var(--radius-full);
  transform: translateX(-50%);
  transition: width var(--transition-base);
}

.header__nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.header__nav-link:hover::after {
  width: 60%;
}

.header__nav-link--active {
  color: var(--brand-600);
  font-weight: var(--font-weight-semibold);
}

.header__nav-link--active::after {
  width: 60%;
  background: var(--brand-600);
}

/* --- Search --- */

.header__search {
  position: relative;
  display: flex;
  align-items: center;
}

.header__search-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.header__search-toggle:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

@media (min-width: 1024px) {
  .header__search-toggle {
    display: none;
  }
}

.header__search-bar {
  display: none;
  align-items: center;
  gap: var(--space-sm);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  padding: 0 var(--space-md);
  height: 40px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: width var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-fast);
}

.header__search-bar:focus-within {
  border-color: var(--brand-400);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

@media (min-width: 1024px) {
  .header__search-bar {
    display: flex;
    width: 240px;
  }

  .header__search-bar:focus-within {
    width: 320px;
  }
}

.header__search-bar--open {
  display: flex;
  position: fixed;
  top: calc(var(--header-height) / 2 - 20px);
  left: var(--space-md);
  right: var(--space-md);
  width: auto;
  z-index: calc(var(--z-header) + 1);
  background: var(--bg-secondary);
  box-shadow: var(--shadow-lg);
}

@media (min-width: 1024px) {
  .header__search-bar--open {
    position: relative;
    top: auto;
    left: auto;
    right: auto;
    box-shadow: none;
  }
}

.header__search-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  flex-shrink: 0;
  width: 18px;
  height: 18px;
}

.header__search-icon svg {
  width: 18px;
  height: 18px;
}

.header__search-input {
  flex: 1;
  min-width: 0;
  background: none;
  border: none;
  outline: none;
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  padding: 0;
}

.header__search-input::placeholder {
  color: var(--text-tertiary);
}

.header__search-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-tertiary);
  cursor: pointer;
  flex-shrink: 0;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.header__search-close:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

@media (min-width: 1024px) {
  .header__search-close {
    display: none;
  }
}

/* --- Actions --- */

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex-shrink: 0;
}

.header__action-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
  text-decoration: none;
}

.header__action-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.header__action-btn:active {
  transform: scale(0.95);
}

.header__badge {
  position: absolute;
  top: 4px;
  right: 4px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--brand-600);
  color: var(--text-on-brand);
  font-size: 10px;
  font-weight: var(--font-weight-bold);
  line-height: 1;
  border-radius: var(--radius-full);
  border: 2px solid var(--bg-secondary);
  pointer-events: none;
  animation: badge-pop 300ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.header__badge--hidden {
  display: none;
}

@keyframes badge-pop {
  0% { transform: scale(0); }
  100% { transform: scale(1); }
}

.header__login-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--brand-600);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.header__login-btn:hover {
  background: var(--brand-50);
  color: var(--brand-700);
}

.header__avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.header__avatar:hover {
  transform: scale(1.06);
}

.header__avatar--hidden {
  display: none;
}

.header__avatar-img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 2px solid var(--glass-border);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.header__avatar:hover .header__avatar-img {
  border-color: var(--brand-400);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

/* --- Hamburger --- */

.header__hamburger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.header__hamburger:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

@media (min-width: 1024px) {
  .header__hamburger {
    display: none;
  }
}

/* --- Mobile Menu --- */

.header__mobile-menu {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-header) + 10);
  display: flex;
  visibility: hidden;
  pointer-events: none;
  transition: visibility 0s var(--transition-slow);
}

.header__mobile-menu--open {
  visibility: visible;
  pointer-events: auto;
  transition: visibility 0s 0s;
}

.header__mobile-menu-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.header__mobile-menu--open .header__mobile-menu-backdrop {
  opacity: 1;
}

.header__mobile-menu-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(320px, 85vw);
  background: var(--bg-secondary);
  box-shadow: var(--shadow-2xl);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.header__mobile-menu--open .header__mobile-menu-panel {
  transform: translateX(0);
}

.header__mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.header__mobile-menu-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.header__mobile-menu-close:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.header__mobile-nav {
  display: flex;
  flex-direction: column;
  padding: var(--space-md);
  gap: var(--space-xs);
}

.header__mobile-nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.header__mobile-nav-link:hover {
  background: var(--brand-50);
  color: var(--brand-600);
}

.header__mobile-nav-link--active {
  background: var(--brand-50);
  color: var(--brand-600);
  font-weight: var(--font-weight-semibold);
}

.header__mobile-nav-link svg,
.header__mobile-nav-link i {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--text-tertiary);
  transition: color var(--transition-fast);
}

.header__mobile-nav-link:hover svg,
.header__mobile-nav-link:hover i {
  color: var(--brand-500);
}


/* ==========================================================================
   BOTTOM NAV (Mobile)
   ========================================================================== */

.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--bottom-nav-height);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-top: 1px solid var(--glass-border);
  box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.04);
  display: flex;
  align-items: center;
  justify-content: space-around;
  padding: 0 var(--space-sm);
  padding-bottom: env(safe-area-inset-bottom, 0);
  z-index: var(--z-header);
}

@media (min-width: 1024px) {
  .bottom-nav {
    display: none;
  }
}

.bottom-nav__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: var(--space-xs) var(--space-sm);
  min-width: 48px;
  color: var(--text-tertiary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), transform var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
  cursor: pointer;
  background: none;
  border: none;
}

.bottom-nav__item:active {
  transform: scale(0.92);
}

.bottom-nav__item--active {
  color: var(--brand-600);
}

.bottom-nav__item--center {
  position: relative;
  margin-top: -18px;
}

.bottom-nav__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  transition: transform var(--transition-fast);
}

.bottom-nav__icon svg {
  width: 24px;
  height: 24px;
}

.bottom-nav__icon--large {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
  border-radius: var(--radius-full);
  color: var(--text-inverse);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.bottom-nav__icon--large svg {
  width: 26px;
  height: 26px;
}

.bottom-nav__item--center:hover .bottom-nav__icon--large,
.bottom-nav__item--center:active .bottom-nav__icon--large {
  transform: scale(1.08);
  box-shadow: 0 6px 24px rgba(99, 102, 241, 0.45);
}

.bottom-nav__label {
  font-size: 10px;
  font-weight: var(--font-weight-medium);
  line-height: 1;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: color var(--transition-fast);
}


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

.footer {
  background: var(--bg-dark);
  color: var(--text-inverse);
  padding: var(--space-3xl) 0 var(--space-lg);
}

.footer__grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

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

@media (min-width: 1024px) {
  .footer__grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--space-2xl);
  }
}

/* --- Brand column --- */

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer__logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.footer__logo-img {
  height: 32px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.footer__tagline {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
  line-height: var(--line-height-relaxed);
  max-width: 300px;
}

.footer__social {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.footer__social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.footer__social-link:hover {
  background: var(--brand-600);
  color: var(--text-inverse);
  transform: translateY(-2px);
}

.footer__social-link svg {
  width: 18px;
  height: 18px;
}

/* --- Links columns --- */

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer__links-title {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wider);
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: var(--space-xs);
}

.footer__link {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
  padding: 2px 0;
}

.footer__link:hover {
  color: var(--text-inverse);
  padding-left: 4px;
}

/* --- Bottom bar --- */

.footer__bottom {
  max-width: var(--max-width);
  margin: var(--space-2xl) auto 0;
  padding: var(--space-lg) var(--space-md) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  text-align: center;
}

@media (min-width: 640px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer__copyright {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.4);
}

.footer__powered {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.3);
}

.footer__powered a {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__powered a:hover {
  color: var(--brand-400);
}


/* ==========================================================================
   LAYOUT
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

@media (min-width: 640px) {
  .container {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }
}

@media (min-width: 1280px) {
  .container {
    padding-left: var(--space-xl);
    padding-right: var(--space-xl);
  }
}

.main-content {
  min-height: calc(100vh - var(--header-height));
  padding-top: var(--space-lg);
  padding-bottom: calc(var(--bottom-nav-height) + var(--space-xl));
}

@media (min-width: 1024px) {
  .main-content {
    padding-top: var(--space-2xl);
    padding-bottom: var(--space-2xl);
  }
}

.page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

@media (min-width: 640px) {
  .page {
    padding: 0 var(--space-lg);
  }
}

.page__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.page__title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
}

@media (min-width: 640px) {
  .page__title {
    font-size: var(--font-size-3xl);
  }
}

.page__subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-top: var(--space-xs);
  line-height: var(--line-height-normal);
}


/* ==========================================================================
   GRID
   ========================================================================== */

.grid {
  display: grid;
  gap: 20px;
}

.grid--2 {
  grid-template-columns: 1fr;
}

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

.grid--3 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.grid--4 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .grid--4 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }
}


/* ==========================================================================
   FLEX UTILITIES
   ========================================================================== */

.flex {
  display: flex;
}

.flex--center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex--between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex--column {
  display: flex;
  flex-direction: column;
}

.flex--wrap {
  display: flex;
  flex-wrap: wrap;
}

.flex--grow {
  flex-grow: 1;
}

.flex--shrink-0 {
  flex-shrink: 0;
}

.items-center {
  align-items: center;
}

.items-start {
  align-items: flex-start;
}

.items-end {
  align-items: flex-end;
}

.justify-end {
  justify-content: flex-end;
}


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

.section {
  margin-bottom: var(--space-2xl);
}

.section__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.section__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  line-height: var(--line-height-tight);
}

@media (min-width: 640px) {
  .section__title {
    font-size: var(--font-size-2xl);
  }
}

.section__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--brand-600);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition-fast), gap var(--transition-fast);
}

.section__link:hover {
  color: var(--brand-700);
  gap: 8px;
}

.section__link::after {
  content: '\2192';
  transition: transform var(--transition-fast);
}

.section__link:hover::after {
  transform: translateX(2px);
}


/* ==========================================================================
   RESPONSIVE VISIBILITY
   ========================================================================== */

.hidden-mobile {
  display: none;
}

@media (min-width: 1024px) {
  .hidden-mobile {
    display: initial;
  }
}

.hidden-desktop {
  display: initial;
}

@media (min-width: 1024px) {
  .hidden-desktop {
    display: none;
  }
}

.show-mobile {
  display: initial;
}

@media (min-width: 1024px) {
  .show-mobile {
    display: none;
  }
}

.show-desktop {
  display: none;
}

@media (min-width: 1024px) {
  .show-desktop {
    display: initial;
  }
}


/* ==========================================================================
   UTILITIES
   ========================================================================== */

.w-full {
  width: 100%;
}

.h-full {
  height: 100%;
}

.min-h-screen {
  min-height: 100vh;
}

.overflow-hidden {
  overflow: hidden;
}

.overflow-auto {
  overflow: auto;
}

.relative {
  position: relative;
}

.absolute {
  position: absolute;
}

.inset-0 {
  inset: 0;
}