/* ============================================================
   Lingen Test — fortune-slip theme (红尘修仙版)
   Palette: rice paper #f4ead3 / cinnabar #8b1a1a / ink #3b2418
   Font: KaiTi chain → serif fallback
   Mobile-first; breakpoint at 768px
   ============================================================ */

:root {
    --color-paper:        #f4ead3;
    --color-paper-deep:   #efe6c9;
    --color-paper-light:  #faf5e8;
    --color-ink:          #3b2418;
    --color-ink-soft:     #5a3d2a;
    --color-cinnabar:     #8b1a1a;
    --color-cinnabar-soft:#b94a4a;
    --color-cinnabar-glow:#d4564a;
    --color-muted:        #a38b5c;
    --color-dashed:       #c9b896;
    --color-gold:         #c8a45c;
    --font-kaiti:         "KaiTi", "STKaiti", "FangSong", "楷体", "STFangsong", serif;
}

* { box-sizing: border-box; margin: 0; }

html, body {
    padding: 0;
    background: var(--color-paper);
    color: var(--color-ink);
    font-family: var(--font-kaiti);
    font-size: 16px;
    line-height: 1.65;
    -webkit-text-size-adjust: 100%;
    overflow-x: hidden;
}

body {
    min-height: 100vh;
    min-height: 100dvh;
    background-image:
        radial-gradient(circle at 10% 0%,  rgba(120, 60, 20, 0.07), transparent 40%),
        radial-gradient(circle at 90% 100%, rgba(120, 60, 20, 0.07), transparent 40%);
}

.scroll-frame {
    max-width: 100%;
    min-height: 100vh;
    min-height: 100dvh;
    padding: 0;
    display: flex;
    flex-direction: column;
}

.section {
    display: none;
    flex: 1;
    width: 100%;
    margin: 0 auto;
}

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

/* ========== Typography ========== */
h1, h2, h3 { color: var(--color-cinnabar); margin: 0 0 12px; font-weight: normal; }
h1 { font-size: 26px; line-height: 1.35; }
h2 { font-size: 22px; }
h3 { font-size: 18px; }
p  { margin: 0 0 10px; }
code {
    font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
    background: var(--color-paper-deep);
    padding: 1px 6px;
    border-radius: 3px;
    font-size: 13px;
}

.label {
    font-size: 11px;
    letter-spacing: 0.15em;
    color: var(--color-cinnabar);
    text-transform: uppercase;
}
.subtitle { color: var(--color-ink-soft); font-size: 14px; line-height: 1.6; }

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    background: var(--color-paper-deep);
    color: var(--color-ink);
    border: 2px solid var(--color-cinnabar);
    border-radius: 6px;
    font-family: inherit;
    font-size: 17px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s ease;
    min-height: 52px;
    min-width: 140px;
    -webkit-tap-highlight-color: transparent;
}
.btn-primary {
    background: var(--color-cinnabar);
    color: var(--color-paper);
    box-shadow: 0 2px 8px rgba(139, 26, 26, 0.25);
}
.btn:active {
    transform: scale(0.97);
    box-shadow: none;
}
.btn:focus-visible {
    outline: 3px solid var(--color-cinnabar-soft);
    outline-offset: 2px;
}
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }
@media (hover: hover) {
    .btn:hover {
        box-shadow: 0 0 0 3px rgba(139, 26, 26, 0.12);
        transform: translateY(-1px);
    }
    .btn-primary:hover {
        background: #9b2a2a;
        box-shadow: 0 4px 16px rgba(139, 26, 26, 0.3);
    }
}

/* ========== Keyframes ========== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 2px 8px rgba(139, 26, 26, 0.25); }
    50%      { box-shadow: 0 2px 20px rgba(139, 26, 26, 0.4); }
}
@keyframes sealStamp {
    0%   { transform: rotate(-6deg) scale(1.4); opacity: 0; }
    60%  { transform: rotate(-6deg) scale(0.95); opacity: 1; }
    100% { transform: rotate(-6deg) scale(1); opacity: 1; }
}
@keyframes slideInOption {
    from { opacity: 0; transform: translateX(-12px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ========== Home Section ========== */
#home {
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 24px 20px;
    gap: 0;
    position: relative;
    overflow: hidden;
}

/* Decorative cloud/mountain background for home */
#home::before {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40%;
    background:
        radial-gradient(ellipse 80% 40% at 20% 90%, rgba(139, 26, 26, 0.04), transparent),
        radial-gradient(ellipse 60% 50% at 80% 95%, rgba(139, 26, 26, 0.03), transparent);
    pointer-events: none;
}

/* Top seal decoration */
#home::after {
    content: "灵";
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--color-cinnabar);
    color: var(--color-cinnabar);
    font-size: 16px;
    font-weight: bold;
    transform: rotate(-8deg);
    opacity: 0.35;
    pointer-events: none;
}

.home-hero {
    margin-bottom: 0;
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.5s ease both;
}

/* Decorative line above title */
.home-hero::before {
    content: "— 修仙测灵根 —";
    display: block;
    font-size: 12px;
    letter-spacing: 0.3em;
    color: var(--color-muted);
    margin-bottom: 12px;
}

#home h1 {
    font-size: 24px;
    margin-bottom: 8px;
    line-height: 1.4;
}

#home .subtitle {
    font-size: 13px;
    line-height: 1.7;
    color: var(--color-ink-soft);
    margin-bottom: 0;
}

/* Info cards below subtitle */
.home-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin: 16px 0;
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.5s ease 0.15s both;
}

.home-info-card {
    background: var(--color-paper-light);
    border: 1px solid var(--color-dashed);
    border-radius: 8px;
    padding: 12px 10px;
    text-align: center;
}

.home-info-card .info-icon {
    font-size: 20px;
    display: block;
    margin-bottom: 4px;
}

.home-info-card .info-text {
    font-size: 11px;
    color: var(--color-ink-soft);
    line-height: 1.4;
}

#start-btn {
    position: relative;
    z-index: 1;
    font-size: 18px;
    padding: 16px 40px;
    min-width: 200px;
    border-radius: 8px;
    animation: fadeInUp 0.5s ease 0.3s both, pulseGlow 2.5s ease-in-out 1s infinite;
    margin: 8px 0;
}

#home .home-footer {
    margin-top: auto;
    padding-top: 16px;
    color: var(--color-muted);
    font-size: 11px;
    position: relative;
    z-index: 1;
    animation: fadeIn 0.5s ease 0.5s both;
}
#home .home-footer p { margin: 3px 0; }
#home .home-footer a {
    color: var(--color-cinnabar);
    text-decoration: none;
    border-bottom: 1px dashed var(--color-dashed);
    transition: border-color 0.2s ease;
}
#home .home-footer a:hover { border-bottom-color: var(--color-cinnabar); }

/* ========== Quiz Section ========== */
#quiz {
    padding: 16px 16px 24px;
    max-width: calc(100vw - 16px);
    animation: fadeIn 0.25s ease;
}

.quiz-progress { margin-bottom: 16px; }
.quiz-progress .label {
    display: block;
    margin-bottom: 6px;
    font-size: 12px;
}
.progress-bar {
    height: 6px;
    background: var(--color-paper-deep);
    border-radius: 3px;
    overflow: hidden;
    border: 1px solid var(--color-dashed);
}
.progress-bar > i {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, var(--color-cinnabar-soft), var(--color-cinnabar));
    border-radius: 3px;
    transition: width 0.35s ease;
}

.quiz-prompt {
    font-size: 17px;
    line-height: 1.8;
    margin: 16px 0 20px;
    color: var(--color-ink);
    padding: 14px 16px;
    background: var(--color-paper-light);
    border-radius: 8px;
    border-left: 3px solid var(--color-cinnabar);
    animation: fadeInUp 0.3s ease;
}
.quiz-prompt::before {
    content: "问 · ";
    color: var(--color-cinnabar);
    font-weight: bold;
}

.options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.option {
    padding: 14px 14px;
    background: var(--color-paper-deep);
    border: 1.5px solid var(--color-dashed);
    border-radius: 10px;
    cursor: pointer;
    min-height: 56px;
    font-family: inherit;
    font-size: 15px;
    color: var(--color-ink);
    text-align: left;
    line-height: 1.55;
    transition: all 0.15s ease;
    display: flex;
    flex-direction: column;
    gap: 3px;
    -webkit-tap-highlight-color: transparent;
    animation: slideInOption 0.3s ease both;
}
.option:nth-child(1) { animation-delay: 0.05s; }
.option:nth-child(2) { animation-delay: 0.1s; }
.option:nth-child(3) { animation-delay: 0.15s; }

.option-label {
    font-size: 12px;
    color: var(--color-cinnabar);
    font-weight: bold;
    letter-spacing: 0.08em;
}
.option-text {
    color: var(--color-ink);
    font-size: 14px;
}
.option:active {
    transform: scale(0.97);
    border-color: var(--color-cinnabar);
    background: #faf0d8;
    box-shadow: inset 0 0 0 1px var(--color-cinnabar);
}
.option:focus-visible {
    outline: 2px solid var(--color-cinnabar);
    outline-offset: 2px;
    border-color: var(--color-cinnabar);
}
@media (hover: hover) {
    .option:hover {
        border-color: var(--color-cinnabar);
        background: var(--color-paper-light);
        transform: translateX(4px);
        box-shadow: -4px 0 0 var(--color-cinnabar);
    }
}

/* ========== Result Section ========== */
#result {
    padding: 20px 16px 32px;
    gap: 16px;
    max-width: calc(100vw - 16px);
    animation: fadeInUp 0.4s ease;
}

.portrait-wrap {
    display: flex;
    justify-content: center;
    margin-bottom: 4px;
}
.portrait-wrap svg {
    width: 160px;
    height: 213px;
    filter: drop-shadow(0 4px 12px rgba(120, 60, 20, 0.2));
    max-width: 100%;
    animation: fadeIn 0.5s ease 0.1s both;
}
.portrait-wrap img {
    width: 160px;
    height: 213px;
    object-fit: contain;
}

.result-heading {
    text-align: center;
    animation: fadeInUp 0.4s ease 0.2s both;
}
.result-heading h1 {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 4px;
    font-size: 24px;
}
.persona-seal {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 30px;
    height: 30px;
    padding: 0 5px;
    border: 2px solid var(--color-cinnabar);
    color: var(--color-cinnabar);
    font-size: 12px;
    font-weight: bold;
    transform: rotate(-6deg);
    background: var(--color-paper);
    letter-spacing: 0.05em;
    animation: sealStamp 0.4s ease 0.5s both;
}
.result-subtitle {
    color: var(--color-ink-soft);
    margin-top: 0;
    font-size: 13px;
}

.result-section {
    border-top: 1px dashed var(--color-dashed);
    padding-top: 14px;
    margin-top: 4px;
    animation: fadeInUp 0.35s ease both;
}
.result-section:nth-child(3) { animation-delay: 0.3s; }
.result-section:nth-child(4) { animation-delay: 0.4s; }
.result-section:nth-child(5) { animation-delay: 0.5s; }
.result-section .label {
    display: block;
    margin-bottom: 8px;
    text-align: center;
    font-size: 11px;
}

.fortune-text {
    line-height: 1.85;
    color: var(--color-ink);
    font-size: 14px;
    text-indent: 2em;
    margin: 0 0 6px;
}

.wuxing-bars {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.wuxing-row {
    display: grid;
    grid-template-columns: 22px 1fr 24px;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}
.wuxing-name {
    color: var(--color-cinnabar);
    font-weight: bold;
    text-align: center;
    font-size: 14px;
}
.wuxing-score {
    color: var(--color-ink-soft);
    font-variant-numeric: tabular-nums;
    text-align: right;
    font-size: 12px;
}
.wuxing-bar {
    height: 8px;
    background: var(--color-paper-light);
    border: 1px solid var(--color-dashed);
    border-radius: 4px;
    overflow: hidden;
}
.wuxing-bar > i {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, var(--color-cinnabar-soft), var(--color-cinnabar));
    border-radius: 4px;
    transition: width 0.6s ease;
}

.methods-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.methods-list li {
    padding: 10px 12px;
    background: var(--color-paper-light);
    border-left: 3px solid var(--color-cinnabar);
    border-radius: 0 6px 6px 0;
    color: var(--color-ink);
    font-size: 14px;
    line-height: 1.6;
}

.result-code {
    display: block;
    margin: 8px auto;
    padding: 10px 20px;
    background: var(--color-paper);
    border: 2px dashed var(--color-cinnabar);
    border-radius: 6px;
    color: var(--color-cinnabar);
    font-weight: bold;
    font-size: 15px;
    cursor: pointer;
    text-align: center;
    letter-spacing: 0.1em;
    font-family: inherit;
    transition: all 0.15s ease;
    -webkit-tap-highlight-color: transparent;
}
.result-code:active {
    background: var(--color-cinnabar);
    color: var(--color-paper);
}

.result-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 8px;
}
.result-actions .btn {
    width: 100%;
    font-size: 15px;
    min-height: 48px;
    padding: 12px 24px;
}

.toast {
    position: fixed;
    left: 50%;
    bottom: 20px;
    transform: translateX(-50%) translateY(8px);
    padding: 10px 20px;
    background: var(--color-ink);
    color: var(--color-paper);
    border-radius: 8px;
    font-size: 14px;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    max-width: 88%;
    text-align: center;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
}
.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ========== Error Section ========== */
#error {
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 40px 20px;
    gap: 16px;
}
#error h2 { color: var(--color-cinnabar); }
.error-msg {
    font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
    background: var(--color-paper-deep);
    border-left: 3px solid var(--color-cinnabar);
    border-radius: 0 6px 6px 0;
    padding: 12px 16px;
    text-align: left;
    color: var(--color-ink);
    font-size: 12px;
    max-width: 100%;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

/* ========== Desktop (>= 768px) ========== */
@media (min-width: 768px) {
    .scroll-frame { padding: 0; }
    .section      { max-width: 640px; }
    #home         { max-width: 520px; padding: 48px 24px; }
    #home::after  { top: 32px; right: 32px; width: 48px; height: 48px; font-size: 20px; }
    #home h1      { font-size: 30px; }
    #quiz         { max-width: 600px; padding: 32px 24px; }
    #result       { max-width: 700px; padding: 32px 24px 48px; }
    html, body    { font-size: 17px; }
    h1 { font-size: 32px; }
    .quiz-prompt  { font-size: 19px; padding: 18px 20px; }
    .option       { padding: 16px 18px; font-size: 16px; border-radius: 10px; }
    .option-text  { font-size: 15px; }
    .portrait-wrap svg,
    .portrait-wrap img { width: 200px; height: 267px; }
    .result-heading h1 { font-size: 30px; }
    .fortune-text { font-size: 15px; }
    .result-row {
        display: grid;
        grid-template-columns: 3fr 2fr;
        gap: 24px;
        align-items: start;
    }
    .result-row .result-section { border-top: 1px dashed var(--color-dashed); }
    .result-actions { flex-direction: row; justify-content: center; }
    .result-actions .btn { width: auto; min-width: 180px; }
    .home-info { gap: 12px; }
    .home-info-card { padding: 16px 14px; }
    .home-info-card .info-icon { font-size: 24px; }
    .home-info-card .info-text { font-size: 12px; }
}

@media (min-width: 1200px) {
    #home { padding: 64px 24px; }
    #quiz { padding: 48px 24px; }
}

/* ========== Accessibility ========== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-delay: 0ms !important;
        transition-duration: 0.01ms !important;
    }
}