.age-building-page {
  --age-primary: #003c47;
  --age-primary-2: #006b74;
  --age-accent: #d99a24;
  --age-good: #18864b;
  --age-bad: #c2410c;
  --age-soft: #f6fafb;
  --age-ink: #18343c;
  --age-muted: #64748b;
  --age-border: #dce5e8;
  --age-surface: #ffffff;
  --age-radius-xl: 26px;
  --age-radius-lg: 18px;
  --age-shadow: 0 18px 48px rgba(12, 35, 42, 0.1);

  max-width: 1320px;
  margin: 10rem auto 4rem;
  padding: 0 16px;
  color: var(--age-ink);

  * {
    box-sizing: border-box;
  }

  .age-building-eyebrow {
    display: inline-flex;
    width: fit-content;
    align-items: center;
    min-height: 34px;
    padding: 7px 13px;
    border: 1px solid rgba(217, 154, 36, 0.28);
    border-radius: 999px;
    background: #fff6e6;
    color: #8a5708;
    font-size: 1.18rem;
    font-weight: 850;
    text-transform: uppercase;
  }

  .age-building-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
    gap: 24px;
    align-items: stretch;
    overflow: hidden;
    padding: clamp(26px, 4vw, 46px);
    border-radius: var(--age-radius-xl);
    background:
      linear-gradient(135deg, rgba(0, 60, 71, 0.94), rgba(0, 107, 116, 0.9)),
      url(/src/docs/images/common/project/caurongdanang.jpg) center / cover no-repeat;
    box-shadow: var(--age-shadow);

    .age-building-hero__content {
      display: flex;
      min-height: 330px;
      flex-direction: column;
      justify-content: center;

      .age-building-eyebrow {
        border-color: rgba(255, 255, 255, 0.22);
        background: rgba(255, 255, 255, 0.12);
        color: #ffe5a8;
      }

      .age-building-hero__title {
        max-width: 850px;
        margin: 14px 0;
        color: #fff;
        font-size: clamp(3rem, 4vw, 5rem);
        font-weight: 920;
        line-height: 1.08;
      }

      p {
        max-width: 780px;
        margin: 0;
        color: rgba(255, 255, 255, 0.84);
        font-size: 1.55rem;
        line-height: 1.7;
      }
    }

    .age-building-hero__visual {
      position: relative;
      display: grid;
      align-content: center;
      gap: var(--space-3, 1.2rem);
      min-height: 280px;
      padding: var(--space-5, 2rem);
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 22px;
      background: linear-gradient(155deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.07));
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
      backdrop-filter: blur(10px);
    }

    .age-building-visual__header {
      display: flex;
      position: relative;
      z-index: 1;
      align-items: center;
      justify-content: space-between;
      gap: var(--space-3, 1.2rem);
      color: #fff;
    }

    .age-building-visual__eyebrow {
      display: inline-flex;
      align-items: center;
      gap: var(--space-2, 0.8rem);
      font-size: var(--font-size-sm, 1.4rem);
      font-weight: var(--font-weight-semibold, 600);
    }

    .age-building-visual__eyebrow svg {
      color: #ffe5a8;
    }

    .age-building-visual__meta {
      color: rgba(255, 255, 255, 0.72);
      font-size: var(--font-size-xs, 1.2rem);
      font-weight: var(--font-weight-medium, 500);
    }

    .age-building-year-card {
      display: grid;
      position: relative;
      z-index: 1;
      grid-template-columns: auto minmax(0, 1fr) auto;
      gap: var(--space-3, 1.2rem);
      align-items: center;
      min-height: 112px;
      padding: var(--space-4, 1.6rem);
      border: 1px solid rgba(255, 255, 255, 0.75);
      border-radius: var(--radius-lg, 1.6rem);
      background: linear-gradient(135deg, #fff, var(--color-brand-50, #eff8f5));
      color: var(--age-primary);
      box-shadow: var(--shadow-md, 0 1.2rem 3.2rem rgba(0, 43, 52, 0.12));

      .age-building-year-card__icon {
        display: grid;
        width: 6.4rem;
        height: 6.4rem;
        place-items: center;
        border-radius: var(--radius-md, 1.2rem);
        background: var(--color-accent-100, #fff2e5);
      }

      .age-building-year-card__logo {
        width: 4.4rem;
        height: 4.4rem;
        object-fit: contain;
        filter: drop-shadow(0 0.4rem 0.8rem rgba(0, 43, 52, 0.14));
      }

      .age-building-year-card__copy {
        display: grid;
        min-width: 0;
      }

      small {
        color: var(--age-muted);
        font-size: var(--font-size-xs, 1.2rem);
        font-weight: var(--font-weight-semibold, 600);
        letter-spacing: 0.04em;
        text-transform: uppercase;
      }

      strong {
        font-size: clamp(3.6rem, 5vw, 5.2rem);
        font-weight: var(--font-weight-bold, 700);
        line-height: 1;
      }

      .age-building-year-card__can-chi {
        align-self: end;
        padding: var(--space-2, 0.8rem) var(--space-3, 1.2rem);
        border-radius: 999px;
        background: var(--color-brand-100, #e7f1f1);
        color: var(--color-brand-700, #004b59);
        font-size: var(--font-size-xs, 1.2rem);
        font-weight: var(--font-weight-semibold, 600);
        white-space: nowrap;
      }
    }

    .age-building-check-list {
      display: grid;
      position: relative;
      z-index: 1;
      gap: var(--space-2, 0.8rem);

      .age-building-criterion {
        display: grid;
        grid-template-columns: 3.6rem minmax(0, 1fr);
        align-items: center;
        gap: var(--space-3, 1.2rem);
        min-height: 5.2rem;
        padding: var(--space-2, 0.8rem) var(--space-3, 1.2rem);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: var(--radius-md, 1.2rem);
        background: rgba(255, 255, 255, 0.11);
        color: #fff;
      }

      .age-building-criterion > b {
        display: grid;
        width: 3.6rem;
        height: 3.6rem;
        place-items: center;
        border-radius: 50%;
        background: rgba(255, 229, 168, 0.16);
        color: #ffe5a8;
        font-size: var(--font-size-xs, 1.2rem);
        font-weight: var(--font-weight-bold, 700);
      }

      .age-building-criterion > span {
        display: grid;
        gap: 0.2rem;
      }

      .age-building-criterion strong {
        font-size: var(--font-size-sm, 1.4rem);
        font-weight: var(--font-weight-semibold, 600);
      }

      .age-building-criterion small {
        color: rgba(255, 255, 255, 0.7);
        font-size: var(--font-size-xs, 1.2rem);
        font-weight: var(--font-weight-regular, 400);
      }
    }
  }

  .age-building-tool,
  .age-building-guide {
    margin-top: 26px;
    padding: clamp(22px, 3vw, 34px);
    border: 1px solid var(--age-border);
    border-radius: var(--age-radius-xl);
    background: var(--age-surface);
    box-shadow: var(--age-shadow);
  }

  .age-building-tool__intro,
  .age-building-guide__heading {
    max-width: 900px;
    margin-bottom: 24px;

    .age-building-tool__title {
      margin: 12px 0 10px;
      color: var(--age-primary);
      font-size: clamp(2.4rem, 3vw, 3.5rem);
      font-weight: 900;
      line-height: 1.16;
    }

    p {
      margin: 0;
      color: var(--age-muted);
      font-size: 1.48rem;
      line-height: 1.7;
    }
  }

  .age-building-form {
    position: relative;
    z-index: 5;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr)) auto;
    gap: 16px;
    align-items: end;
  }

  .age-building-field {
    position: relative;
    min-width: 0;
  }

  .age-building-label {
    display: block;
    margin-bottom: 9px;
    color: var(--age-primary);
    font-size: 1.34rem;
    font-weight: 850;
  }

  .age-building-select {
    position: relative;
  }

  .age-building-input {
    width: 100%;
    height: 52px;
    padding: 0 44px 0 15px;
    border: 1px solid var(--age-border);
    border-radius: 14px;
    background: var(--age-soft);
    color: var(--age-ink);
    cursor: pointer;
    font-size: 1.4rem;
    font-weight: 720;
    outline: 0;
    transition:
      border-color 0.2s ease,
      background 0.2s ease,
      box-shadow 0.2s ease;

    &:focus {
      border-color: var(--age-primary-2);
      background: #fff;
      box-shadow: 0 0 0 4px rgba(0, 107, 116, 0.12);
    }

    &::placeholder {
      color: #8a9aa3;
      font-weight: 650;
    }

    &.shake {
      border-color: #ef4444;
      animation: ageBuildingShake 0.36s ease;
    }
  }

  .age-building-select__icon {
    position: absolute;
    top: 18px;
    right: 15px;
    color: var(--age-muted);
    font-size: 1.35rem;
    pointer-events: none;
    transition: transform 0.2s ease;

    &.active {
      transform: rotate(180deg);
    }
  }

  .age-building-error {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    z-index: 4;
    color: #dc2626;
    font-size: 1.16rem;
    font-weight: 760;
  }

  .age-building-suggestions {
    display: none;
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    z-index: 30;
    width: 100%;
    overflow: hidden;
    border: 1px solid var(--age-border);
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 18px 40px rgba(12, 35, 42, 0.16);
  }

  .age-building-search {
    position: relative;
    padding: 12px;
    border-bottom: 1px solid var(--age-border);

    .age-building-search__input {
      width: 100%;
      height: 40px;
      padding: 0 38px 0 12px;
      border: 1px solid var(--age-border);
      border-radius: 12px;
      color: var(--age-ink);
      font-size: 1.32rem;
      outline: 0;

      &:focus {
        border-color: var(--age-primary-2);
      }
    }

    i {
      position: absolute;
      top: 23px;
      right: 24px;
      color: var(--age-muted);
      font-size: 1.25rem;
    }
  }

  .age-building-suggestions__list {
    max-height: 260px;
    overflow-y: auto;
    padding: 8px;

    &.age-building-suggestions__list--years {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 6px;
    }
  }

  .age-building-option,
  .suggestion-item {
    display: flex;
    min-height: 42px;
    align-items: center;
    padding: 9px 12px;
    border-radius: 11px;
    color: var(--age-ink);
    cursor: pointer;
    font-size: 1.32rem;
    font-weight: 720;
    transition:
      background 0.18s ease,
      color 0.18s ease;

    &:hover,
    &.active {
      background: #fff6e6;
      color: #8a5708;
    }
  }

  .age-building-clear {
    display: none;
    padding: 10px 12px 12px;
    border-top: 1px solid var(--age-border);

    &.active {
      display: block;
    }
  }

  .age-building-clear__button {
    width: 100%;
    min-height: 40px;
    border: 0;
    border-radius: 11px;
    background: #edf8f8;
    color: var(--age-primary);
    cursor: pointer;
    font-size: 1.28rem;
    font-weight: 850;
  }

  .age-building-submit {
    display: inline-flex;
    grid-column: 1 / -1;
    height: 52px;
    align-items: center;
    justify-content: center;
    justify-self: center;
    gap: 9px;
    min-width: 210px;
    padding: 0 22px;
    border: 0;
    border-radius: 14px;
    background: var(--age-primary);
    color: #fff;
    cursor: pointer;
    font-size: 1.4rem;
    font-weight: 880;
    white-space: nowrap;
    box-shadow: 0 12px 26px rgba(0, 60, 71, 0.2);
    transition:
      background 0.2s ease,
      transform 0.2s ease,
      box-shadow 0.2s ease;

    &:hover {
      background: var(--age-primary-2);
      transform: translateY(-2px);
      box-shadow: 0 16px 32px rgba(0, 60, 71, 0.26);
    }
  }

  .age-building-result {
    display: none;
    margin-top: 26px;

    &.active {
      display: block;
    }
  }

  .age-building-report {
    overflow: hidden;
    border: 1px solid rgba(0, 107, 116, 0.18);
    border-radius: var(--age-radius-xl);
    background: linear-gradient(180deg, #ffffff, #f7fbfb);
  }

  .age-building-report__header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 18px;
    align-items: center;
    padding: clamp(20px, 3vw, 30px);
    background: linear-gradient(135deg, var(--age-primary), var(--age-primary-2));

    h3 {
      margin: 0;
      color: #fff;
      font-size: clamp(2.2rem, 3vw, 3.4rem);
      font-weight: 920;
      line-height: 1.18;
    }

    p {
      margin: 8px 0 0;
      color: rgba(255, 255, 255, 0.82);
      font-size: 1.38rem;
      line-height: 1.6;
    }
  }

  .age-building-score {
    display: grid;
    width: 124px;
    aspect-ratio: 1;
    place-items: center;
    border: 3px solid rgba(255, 255, 255, 0.26);
    border-radius: 50%;
    background: #fff;
    color: var(--age-primary);

    strong {
      font-size: 3.8rem;
      font-weight: 950;
      line-height: 0.9;
    }

    span {
      color: var(--age-muted);
      font-size: 1.1rem;
      font-weight: 850;
      text-transform: uppercase;
    }

    &.is-good {
      color: var(--age-good);
    }

    &.is-bad {
      color: var(--age-bad);
    }
  }

  .age-building-report__body {
    padding: clamp(18px, 3vw, 28px);
  }

  .age-building-basic {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 18px;

    .age-building-basic__item {
      padding: 13px 14px;
      border: 1px solid var(--age-border);
      border-radius: 14px;
      background: #fff;

      b {
        display: block;
        margin-bottom: 4px;
        color: var(--age-muted);
        font-size: 1.1rem;
        text-transform: uppercase;
      }

      span {
        color: var(--age-primary);
        font-size: 1.4rem;
        font-weight: 850;
      }
    }
  }

  .age-building-section-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .age-building-section-card {
    padding: 18px;
    border: 1px solid var(--age-border);
    border-radius: 16px;
    background: #fff;

    &.is-good {
      border-color: rgba(24, 134, 75, 0.24);
      background: #f3fbf6;
    }

    &.is-bad {
      border-color: rgba(194, 65, 12, 0.24);
      background: #fff7ed;
    }

    h4 {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      align-items: center;
      margin: 0 0 10px;
      color: var(--age-primary);
      font-size: 1.6rem;
      font-weight: 880;
      line-height: 1.3;
    }

    p {
      margin: 0;
      color: var(--age-ink);
      font-size: 1.34rem;
      line-height: 1.62;
    }
  }

  .age-building-status {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 5px 10px;
    border-radius: 999px;
    font-size: 1.12rem;
    font-weight: 850;

    &.is-good {
      background: #dcfce7;
      color: var(--age-good);
    }

    &.is-bad {
      background: #ffedd5;
      color: var(--age-bad);
    }
  }

  .age-building-evaluation,
  .age-building-borrow,
  .age-building-rituals,
  .age-building-disclaimer {
    margin-top: 18px;
    padding: 18px;
    border-radius: 16px;
  }

  .age-building-evaluation {
    border: 1px solid rgba(0, 107, 116, 0.18);
    background: #f1fbfb;

    h4 {
      margin: 0 0 8px;
      color: var(--age-primary);
      font-size: 1.8rem;
      font-weight: 900;
    }

    p {
      margin: 0;
      color: var(--age-ink);
      font-size: 1.42rem;
      line-height: 1.65;
    }
  }

  .age-building-borrow {
    border: 1px solid rgba(217, 154, 36, 0.26);
    background: #fff8ea;

    &.is-perfect {
      border-color: rgba(24, 134, 75, 0.28);
      background: #f1fbf5;
    }

    h4 {
      margin: 0 0 12px;
      color: var(--age-primary);
      font-size: 1.7rem;
      font-weight: 900;
    }

    p {
      margin: 10px 0 0;
      color: #725018;
      font-size: 1.3rem;
      line-height: 1.55;
    }
  }

  .age-building-age-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .age-building-age-tag {
    display: inline-flex;
    min-height: 34px;
    align-items: center;
    padding: 7px 12px;
    border-radius: 999px;
    background: #fff;
    color: #8a5708;
    font-size: 1.24rem;
    font-weight: 850;
  }

  .age-building-rituals {
    border: 1px solid var(--age-border);
    background: #fff;

    h4 {
      margin: 0 0 12px;
      color: var(--age-primary);
      font-size: 1.7rem;
      font-weight: 900;
    }

    ol {
      display: grid;
      gap: 10px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    li {
      display: grid;
      grid-template-columns: 32px minmax(0, 1fr);
      gap: 10px;
      align-items: start;
      color: var(--age-ink);
      font-size: 1.36rem;
      line-height: 1.58;

      span {
        display: inline-flex;
        width: 32px;
        height: 32px;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        background: var(--age-primary);
        color: #fff;
        font-size: 1.2rem;
        font-weight: 900;
      }
    }
  }

  .age-building-disclaimer {
    border: 1px dashed rgba(100, 116, 139, 0.35);
    background: #f8fafc;
    color: var(--age-muted);
    font-size: 1.3rem;
    line-height: 1.55;
  }

  .age-building-guide {
    background: linear-gradient(180deg, #ffffff, #f7fbfb);
  }

  .age-building-guide__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
    gap: 16px;
  }

  .age-building-guide-card {
    display: grid;
    height: 100%;
    grid-template-rows: auto auto 1fr;
    padding: 22px;
    border: 1px solid var(--age-border);
    border-radius: var(--age-radius-lg);
    background: #fff;
    transition:
      border-color 0.2s ease,
      transform 0.2s ease,
      box-shadow 0.2s ease;

    &:hover {
      border-color: rgba(217, 154, 36, 0.45);
      transform: translateY(-4px);
      box-shadow: 0 16px 32px rgba(12, 35, 42, 0.09);
    }

    :is(i, svg) {
      display: inline-flex;
      width: 46px;
      height: 46px;
      align-items: center;
      justify-content: center;
      border-radius: 15px;
      background: #fff6e6;
      color: #9a650c;
      font-size: 1.85rem;
    }

    .age-building-guide-title {
      margin: 14px 0 8px;
      color: var(--age-primary);
      font-size: 1.7rem;
      font-weight: 880;
      line-height: 1.28;
    }

    p {
      margin: 0;
      color: var(--age-muted);
      font-size: 1.36rem;
      line-height: 1.62;
    }
  }
}

@keyframes ageBuildingShake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-5px);
  }
  75% {
    transform: translateX(5px);
  }
}

@media (max-width: 1100px) {
  .age-building-page {
    .age-building-form {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .age-building-submit {
      grid-column: 1 / -1;
      width: min(100%, 260px);
      justify-self: center;
    }

    .age-building-section-grid {
      grid-template-columns: 1fr;
    }
  }
}

@media (max-width: 900px) {
  .age-building-page {
    margin: 4rem auto 3rem;

    .age-building-hero {
      grid-template-columns: 1fr;

      .age-building-hero__content {
        min-height: auto;
      }
    }

    .age-building-report__header {
      grid-template-columns: 1fr;
    }

    .age-building-basic,
    .age-building-guide__grid {
      grid-template-columns: 1fr;
    }

    .age-building-guide-card {
      grid-template-columns: 46px minmax(0, 1fr);
      grid-template-rows: auto auto;
      gap: 6px 12px;
      padding: 16px;

      :is(i, svg) {
        grid-row: span 2;
      }

      .age-building-guide-title {
        margin: 0;
      }
    }
  }
}

@media (max-width: 760px) {
  .age-building-page {
    .age-building-hero__visual {
      display: none;
    }
  }
}

@media (max-width: 640px) {
  .mobile-search-section {
    display: none;
  }

  .age-building-page {
    padding: 4rem 12px 0;

    .age-building-hero,
    .age-building-tool,
    .age-building-guide {
      border-radius: 20px;
      padding: 18px;
    }

    .age-building-form {
      grid-template-columns: 1fr;
    }

    .age-building-suggestions__list {
      &.age-building-suggestions__list--years {
        grid-template-columns: 1fr;
      }
    }

    .age-building-score {
      width: 106px;
    }
  }
}