/* ========================================
   color-combinations.css — Color Combinations Styles
   ======================================== */

/* ========== Container ========== */
.header__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 40px;
}

.color-combinations__container {
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

/* ========== Header ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 1000;
  border-bottom: 1px solid var(--border);
  transition: all var(--transition-base);
}

.header__container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: inline-flex;
  align-items: center;
  gap: 0;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.header__logo-img {
  width: 32px;
  height: 32px;
  margin: 0;
  object-fit: contain;
}

.header__nav {
  display: flex;
  gap: 32px;
}

.header__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.header__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-base);
}

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

.header__link:hover::after {
  width: 100%;
}

.header__link--active {
  color: var(--accent);
}

.header__link--active::after {
  width: 100%;
}

.header__menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  width: 28px;
  cursor: pointer;
}

.header__menu-toggle span {
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-base);
}

.header__menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.header__menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.header__menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* ========== Mobile Menu ========== */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--bg-primary);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  gap: 24px;
  text-align: center;
}

.mobile-menu__link {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.mobile-menu__link:hover {
  color: var(--accent);
}

/* ========== Color Combinations Main ========== */
.color-combinations {
  min-height: 100vh;
  padding-top: calc(var(--header-height) + 20px);
  padding-bottom: 80px;
}

.color-combinations__header {
  text-align: center;
  margin-bottom: 48px;
}

.color-combinations__title {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.color-combinations__subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
}

/* ========== Text Input ========== */
.text-input {
  max-width: 600px;
  margin: 0 auto 48px;
}

.text-input__label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.text-input__field {
  width: 100%;
  padding: 16px 20px;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--bg-tertiary);
  border: 2px solid var(--border);
  border-radius: 12px;
  outline: none;
  transition: all var(--transition-base);
}

.text-input__field:focus {
  border-color: var(--accent);
}

.text-input__field::placeholder {
  color: var(--text-muted);
}

/* ========== Combinations Grid ========== */
.combinations-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 16px;
  width: 100%;
}

.combination-card {
  border-radius: 16px;
  overflow: hidden;
  cursor: pointer;
  transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
}

.combination-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}

.combination-card__preview {
  padding: 40px 24px;
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.combination-card__text {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.4;
  word-break: break-word;
}

.combination-card__actions {
  display: flex;
  gap: 1px;
  background: var(--bg-tertiary);
}

.combination-card__action {
  flex: 1;
  padding: 16px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-tertiary);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.combination-card__action:hover {
  background: var(--bg-secondary);
}

.combination-card__action--bg {
  border-right: 1px solid var(--border);
}

.combination-card__action--text {
  border-left: 1px solid var(--border);
}

.combination-card__hex {
  display: block;
  margin-top: 4px;
  font-size: 0.625rem;
  color: var(--text-secondary);
}

/* ========== Responsive ========== */
@media (max-width: 1600px) {
  .combinations-grid {
    grid-template-columns: repeat(7, 1fr);
  }
}

@media (max-width: 1400px) {
  .combinations-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

@media (max-width: 1024px) {
  .combinations-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

@media (max-width: 768px) {
  .header__nav {
    display: none;
  }

  .header__menu-toggle {
    display: flex;
  }

  .color-combinations__title {
    font-size: 2rem;
  }

  .combinations-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .header__container,
  .color-combinations__container {
    padding: 0 20px;
  }
}

@media (max-width: 480px) {
  .color-combinations__title {
    font-size: 1.75rem;
  }

  .combinations-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .combination-card__preview {
    padding: 32px 24px;
    min-height: 140px;
  }

  .combination-card__text {
    font-size: 1.25rem;
  }
}