* {
    box-sizing: border-box;
}

:root {
    --ui-font: Arial, Helvetica, sans-serif;
    --hanja-font: "Noto Serif CJK KR", "Noto Serif CJK SC", "Yu Mincho", "Malgun Gothic", serif;
    --paper: #fffdf7;
    --page: #f7f3e9;
    --ink: #2f302b;
    --muted: #73766d;
    --line: #ddd7c9;
    --soft: #f2efe6;
    --accent: #555f48;
    --current: #1e88e5;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--ink);
    background-color: var(--page);
    font-family: var(--ui-font);
}

button,
input {
    font: inherit;
}

[hidden] {
    display: none !important;
}

.page-container {
    width: 100%;
    max-width: 860px;
    margin: 0 auto;
    padding: 58px 24px 72px;
}

.page-header {
    margin-bottom: 34px;
    text-align: center;
}

.page-header h1 {
    margin: 0;
    color: #262821;
    font-size: clamp(28px, 4.6vw, 36px);
    font-weight: 600;
    letter-spacing: -0.5px;
}

.subtitle {
    margin: 14px 0 0;
    color: #6e7068;
    font-family: var(--ui-font);
    font-size: 16px;
    line-height: 1.6;
}

.input-card,
.result-card {
    width: 100%;
    margin: 0 auto;
    background-color: var(--paper);
    border: 1px solid #ded9cb;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(59, 55, 44, 0.08);
}

.input-card {
    max-width: 680px;
    padding: 34px 36px 36px;
}

.result-card {
    max-width: 680px;
    margin-top: 30px;
    padding: 32px 30px 30px;
}

.input-card h2 {
    margin: 0 0 28px;
    color: #303229;
    text-align: center;
    font-size: 28px;
    font-weight: 600;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 22px;
    row-gap: 22px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 0;
}

.form-group label,
.form-label {
    color: #55584f;
    font-family: var(--ui-font);
    font-size: 14px;
    font-weight: 600;
}

.form-group input:not([type="radio"]) {
    width: 100%;
    height: 48px;
    padding: 0 14px;
    color: #303229;
    background-color: #fff;
    border: 1px solid #cbc7bb;
    border-radius: 8px;
    outline: none;
    font-family: var(--ui-font);
    font-size: 15px;
}

.form-group input:not([type="radio"])::placeholder {
    color: #92948d;
}

.form-group input:not([type="radio"]):focus {
    border-color: #7e846c;
    box-shadow: 0 0 0 3px rgba(126, 132, 108, 0.14);
}

.input-hint {
    margin: -1px 0 0;
    color: #85877f;
    font-family: var(--ui-font);
    font-size: 11px;
    line-height: 1.45;
}

.radio-group {
    display: flex;
    align-items: center;
    gap: 34px;
    width: 100%;
    height: 48px;
    padding: 0 16px;
    background-color: #fff;
    border: 1px solid #cbc7bb;
    border-radius: 8px;
}

.radio-option {
    display: inline-flex;
    flex-direction: row;
    align-items: center;
    gap: 8px;
    margin: 0;
    color: #303229;
    font-family: var(--ui-font);
    font-size: 15px;
    font-weight: 400;
    cursor: pointer;
}

.radio-option input[type="radio"] {
    width: 16px;
    height: 16px;
    margin: 0;
    padding: 0;
    flex: 0 0 auto;
    accent-color: var(--accent);
    cursor: pointer;
}

.time-basis-note {
    margin: 20px 0 0;
    color: #85877f;
    font-family: var(--ui-font);
    font-size: 12px;
    line-height: 1.55;
}

.remember-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 18px;
}

.remember-option {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: #66685f;
    font-family: var(--ui-font);
    font-size: 13px;
    font-weight: 400;
    cursor: pointer;
}

.remember-option input[type="checkbox"] {
    width: 16px;
    height: 16px;
    margin: 0;
    accent-color: var(--accent);
    cursor: pointer;
}

.clear-button {
    padding: 4px 0;
    color: #77796f;
    background: none;
    border: none;
    font-family: var(--ui-font);
    font-size: 13px;
    cursor: pointer;
}

.clear-button:hover {
    color: #34372f;
    text-decoration: underline;
}

.calculate-button {
    display: block;
    width: 100%;
    height: 52px;
    margin-top: 18px;
    color: #fff;
    background-color: var(--accent);
    border: none;
    border-radius: 9px;
    font-family: var(--ui-font);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.calculate-button:hover {
    background-color: #414a37;
}

.calculate-button:active {
    transform: translateY(1px);
}

.calculate-button:disabled {
    opacity: 0.65;
    cursor: wait;
}

.chart-profile {
    display: flex;
    align-items: center;
    gap: 16px;
}

.gender-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    flex: 0 0 42px;
    color: #fff;
    background-color: #405f9e;
    border-radius: 50%;
    font-family: var(--ui-font);
    font-size: 24px;
    font-weight: 700;
    line-height: 1;
}

.gender-icon.female {
    background-color: #a94e78;
}

.profile-copy {
    min-width: 0;
}

.result-name,
.result-header h2 {
    margin: 0;
}

#result-name {
    margin: 0;
    color: #303229;
    font-size: clamp(23px, 3.5vw, 28px);
    line-height: 1.2;
}

.result-summary {
    margin: 7px 0 0;
    color: #696c63;
    font-family: var(--ui-font);
    font-size: 14px;
    line-height: 1.5;
}

.section-rule {
    height: 1px;
    margin: 28px 0;
    background: linear-gradient(
        90deg,
        transparent,
        #cbc5b7 10%,
        #cbc5b7 90%,
        transparent
    );
}

.section-heading {
    margin-bottom: 14px;
}

.section-heading h3 {
    margin: 0;
    color: #303229;
    font-size: 23px;
}

.chart-section-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
}

.compact-heading {
    margin-bottom: 10px;
}

.centered-heading {
    text-align: center;
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    overflow: hidden;
    background-color: #fff;
    border: 1px solid var(--line);
    border-radius: 12px;
}

.pillar-card {
    min-width: 0;
    padding-bottom: 14px;
    text-align: center;
}

.pillar-card + .pillar-card {
    border-left: 1px solid var(--line);
}

.pillar-label {
    padding: 10px 6px;
    color: #52564c;
    background-color: var(--soft);
    border-bottom: 1px solid var(--line);
    font-family: var(--ui-font);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.pillar-relation {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 8px 7px;
    color: #4d5147;
    font-family: var(--ui-font);
    font-size: 12px;
    font-weight: 700;
    line-height: 1.2;
}

.day-master {
    color: #1958b8;
    font-weight: 800;
}

.pillar-stack,
.luck-stack {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    margin: 0 auto;
}

.pillar-stack {
    width: min(72px, calc(100% - 20px));
}

.character-block {
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 1 / 1;
    color: #fff;
    border: 2px solid rgba(28, 29, 25, 0.82);
    font-family: var(--hanja-font);
    font-size: clamp(34px, 5vw, 46px);
    font-weight: 900;
    line-height: 1;
    -webkit-text-stroke: 1px #181914;
    paint-order: stroke fill;
    text-shadow:
        -1px -1px 0 #181914,
         1px -1px 0 #181914,
        -1px  1px 0 #181914,
         1px  1px 0 #181914;
}

.branch-block,
.luck-character + .luck-character {
    border-top: none;
}

.branch-relation {
    min-height: 40px;
}

.pillar-details {
    margin: 5px 0 0;
    padding-top: 10px;
    border-top: 1px solid #ebe6da;
}

.hidden-stems-list {
    display: grid;
    gap: 5px;
    width: min(72px, calc(100% - 20px));
    min-height: 78px;
    margin: 0 auto;
    padding-left: 0;
}

.hidden-stem-item {
    display: grid;
    grid-template-columns: 25px minmax(0, 1fr);
    align-items: center;
    gap: 6px;
    min-width: 0;
    text-align: left;
}

.hidden-stem-character {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 25px;
    height: 25px;
    border: 1px solid rgba(28, 29, 25, 0.45);
    border-radius: 4px;
    font-family: var(--hanja-font);
    font-size: 16px;
    font-weight: 700;
}

.hidden-stem-relation {
    min-width: 0;
    color: #55584f;
    font-family: var(--ui-font);
    font-size: 12px;
    font-weight: 700;
    line-height: 1.15;
    overflow-wrap: anywhere;
}

.twelve-stage {
    margin-top: 10px;
    padding-top: 9px;
    border-top: 1px solid #eee9df;
    color: #33362f;
    font-family: var(--ui-font);
    font-size: 13px;
    font-weight: 700;
    line-height: 1.15;
}

.five-elements {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 3px;
    width: auto;
    margin: 0;
    flex: 0 0 auto;
}

.five-element-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    min-width: 39px;
    padding: 5px 6px;
    border: 1px solid rgba(31, 32, 28, 0.38);
    border-radius: 5px;
}

.five-element-label {
    min-width: 0;
    font-family: var(--ui-font);
    font-size: 12px;
    font-weight: 800;
    line-height: 1;
}

.five-element-count {
    font-family: var(--ui-font);
    font-size: 13px;
    line-height: 1;
}

.luck-section {
    min-width: 0;
    margin-top: 24px;
}

.luck-scroll {
    width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 6px 0 13px;
    scroll-behavior: smooth;
    scrollbar-width: thin;
    overscroll-behavior-inline: contain;
    -webkit-overflow-scrolling: touch;
}

.luck-scroll:focus-visible {
    outline: 3px solid rgba(30, 136, 229, 0.2);
    outline-offset: 3px;
    border-radius: 8px;
}

.luck-track {
    display: flex;
    align-items: stretch;
    gap: 0;
    width: max-content;
    min-width: 100%;
}

.luck-item {
    flex: 0 0 82px;
    padding: 7px 5px 9px;
    text-align: center;
    background-color: #fff;
    border: 1px solid #d9d4c8;
    border-radius: 0;
}

.luck-item + .luck-item {
    border-left: 0;
}

.luck-item:first-child {
    border-radius: 9px 0 0 9px;
}

.luck-item:last-child {
    border-radius: 0 9px 9px 0;
}

.luck-item.is-current {
    position: relative;
    z-index: 1;
    border-color: var(--current);
    box-shadow:
        inset 0 0 0 2px var(--current),
        0 4px 14px rgba(30, 136, 229, 0.16);
}

.luck-value {
    color: #292c26;
    font-family: var(--ui-font);
    font-size: 18px;
    font-weight: 800;
}

.luck-relation {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 31px;
    margin-top: 3px;
    color: #55584f;
    font-family: var(--ui-font);
    font-size: 12px;
    font-weight: 700;
    line-height: 1.1;
}

.luck-stack {
    width: 58px;
    margin-top: 4px;
}

.luck-character {
    font-size: 30px;
}

.luck-branch-relation {
    min-height: 30px;
    margin-top: 5px;
}

.chart-note {
    margin: 22px 0 0;
    padding-top: 0;
    color: #82847c;
    border-top: none;
    font-family: var(--ui-font);
    font-size: 11px;
    line-height: 1.6;
    text-align: center;
}

.element-wood {
    color: #fff;
    background-color: #26985b;
}

.element-fire {
    color: #fff;
    background-color: #d84a42;
}

.element-earth {
    color: #2d2a20;
    background-color: #d7aa2c;
}

.element-metal {
    color: #282a26;
    background-color: #f8f8f3;
}

.element-water {
    color: #fff;
    background-color: #383c43;
}

.character-block.element-wood,
.character-block.element-fire,
.character-block.element-earth,
.character-block.element-metal,
.character-block.element-water {
    color: #fff;
}

@media (max-width: 700px) {
    .page-container {
        padding: 38px 14px 52px;
    }

    .page-header {
        margin-bottom: 25px;
    }

    .input-card {
        padding: 28px 20px 30px;
    }

    .result-card {
        padding: 25px 10px 24px;
    }

    .input-card h2 {
        margin-bottom: 24px;
        font-size: 24px;
    }

    .form-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }

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

    .chart-profile {
        gap: 11px;
        padding: 0 5px;
    }

    .gender-icon {
        width: 38px;
        height: 38px;
        flex-basis: 38px;
        font-size: 21px;
    }

    .section-rule {
        margin: 23px 0;
    }

    .section-heading {
        padding: 0 4px;
    }

    .chart-section-heading {
        gap: 8px;
    }

    .section-heading h3 {
        font-size: 21px;
    }

    .pillar-label {
        padding: 9px 2px;
        font-size: 10px;
    }

    .pillar-relation {
        min-height: 42px;
        padding: 7px 3px;
        font-size: 10.5px;
        overflow-wrap: anywhere;
    }

    .pillar-stack {
        width: min(60px, calc(100% - 8px));
    }

    .character-block {
        border-width: 1.5px;
        font-size: clamp(30px, 11vw, 42px);
    }

    .pillar-details {
        margin: 2px 4px 0;
        padding-top: 9px;
    }

    .hidden-stems-list {
        width: min(60px, calc(100% - 8px));
        min-height: 78px;
    }

    .hidden-stem-item {
        grid-template-columns: 22px minmax(0, 1fr);
        gap: 4px;
    }

    .hidden-stem-character {
        width: 22px;
        height: 22px;
        font-size: 14px;
    }

    .hidden-stem-relation {
        font-size: 10px;
    }

    .twelve-stage {
        font-size: 11px;
    }

    .five-elements {
        gap: 2px;
    }

    .five-element-item {
        min-width: 31px;
        gap: 2px;
        padding: 4px 4px;
    }

    .five-element-label,
    .five-element-count {
        font-size: 10px;
    }

    .luck-item {
        flex-basis: 76px;
    }

    .luck-relation {
        font-size: 11px;
    }

    .chart-note {
        margin-left: 5px;
        margin-right: 5px;
    }
}

@media (max-width: 390px) {
    .result-card {
        padding-left: 7px;
        padding-right: 7px;
    }

    .pillar-stack {
        width: min(54px, calc(100% - 6px));
    }

    .hidden-stems-list {
        width: min(54px, calc(100% - 6px));
    }

    .pillar-relation {
        font-size: 9.5px;
    }

    .hidden-stem-relation {
        font-size: 9.5px;
    }

    .five-element-item {
        min-width: 29px;
        padding-left: 3px;
        padding-right: 3px;
    }
}

/* Mobile final tuning: Ten-year Luck */
@media (max-width: 700px) {
    #daeyun-title {
        font-size: 13px !important;
        line-height: 1.15 !important;
        white-space: nowrap !important;
        letter-spacing: -0.8px !important;
        text-align: center !important;
    }

    #daeyun-track.luck-track .luck-item {
        flex: 0 0 64px !important;
        padding: 6px 4px 8px !important;
    }

    #daeyun-track.luck-track .luck-item .luck-stack {
        width: 40px !important;
        min-width: 40px !important;
        max-width: 40px !important;
        margin-top: 4px !important;
    }

    #daeyun-track.luck-track .luck-item .luck-stack .character-block.luck-character {
        width: 40px !important;
        min-width: 40px !important;
        max-width: 40px !important;
        height: 40px !important;
        min-height: 40px !important;
        max-height: 40px !important;
        aspect-ratio: unset !important;
        flex: 0 0 40px !important;

        font-size: 23px !important;
        line-height: 1 !important;

        border-width: 1.3px !important;
        -webkit-text-stroke: 0.55px #181914 !important;
        text-shadow:
            -0.55px -0.55px 0 #181914,
             0.55px -0.55px 0 #181914,
            -0.55px  0.55px 0 #181914,
             0.55px  0.55px 0 #181914 !important;
    }

    #daeyun-track.luck-track .luck-value {
        font-size: 14px !important;
    }

    #daeyun-track.luck-track .luck-relation,
    #daeyun-track.luck-track .luck-branch-relation {
        font-size: 9.8px !important;
        line-height: 1.1 !important;
        min-height: 24px !important;
    }

    /* remove bottom divider line */
    .luck-section,
    .luck-section::after,
    .result-section,
    .result-section::after,
    .result-card::after {
        border-bottom: none !important;
        box-shadow: none !important;
    }

    .luck-section hr,
    .result-section hr,
    .result-card > hr:last-child {
        display: none !important;
    }
}

@media (max-width: 390px) {
    #daeyun-title {
        font-size: 12px !important;
        letter-spacing: -0.9px !important;
    }

    #daeyun-track.luck-track .luck-item {
        flex-basis: 60px !important;
    }

    #daeyun-track.luck-track .luck-item .luck-stack {
        width: 38px !important;
        min-width: 38px !important;
        max-width: 38px !important;
    }

    #daeyun-track.luck-track .luck-item .luck-stack .character-block.luck-character {
        width: 38px !important;
        min-width: 38px !important;
        max-width: 38px !important;
        height: 38px !important;
        min-height: 38px !important;
        max-height: 38px !important;
        flex-basis: 38px !important;

        font-size: 22px !important;
    }
}