:root {
    --bg: #f5f6fb;
    --card: rgba(255, 255, 255, 0.9);
    --card-strong: #ffffff;
    --text: #20212a;
    --muted: #7b7f8f;
    --line: #e7e8f1;
    --primary: #6f63ff;
    --primary-2: #7d6cff;
    --shadow: 0 18px 50px rgba(56, 58, 120, 0.10);
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    background:
        radial-gradient(circle at 12% 10%, rgba(111, 99, 255, 0.12), transparent 26%),
        radial-gradient(circle at 88% 14%, rgba(111, 99, 255, 0.10), transparent 22%),
        linear-gradient(180deg, #fbfbff 0%, var(--bg) 45%, #f2f4fb 100%);
    color: var(--text);
    padding: 40px 20px 96px;
}

.container {
    max-width: 1120px;
    margin: 0 auto;
}

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

.title h1 {
    margin: 0;
    font-size: clamp(46px, 7vw, 78px);
    line-height: 1;
    font-weight: 900;
    letter-spacing: 0.04em;
    background: linear-gradient(90deg, #17181f 0%, #2b2d38 45%, #6f63ff 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.title p {
    margin: 14px 0 0;
    color: #767b88;
    font-size: clamp(15px, 2.2vw, 20px);
}

.main-card {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.65);
    border-radius: 34px;
    padding: 34px;
    display: flex;
    gap: 34px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(12px);
    margin-bottom: 46px;
}

.left {
    flex: 1;
    min-width: 0;
}

.right {
    width: 320px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-left: 1px solid rgba(225, 227, 238, 0.9);
    padding-left: 34px;
}

.tabs {
    display: flex;
    gap: 14px;
    margin-bottom: 28px;
}

.tab {
    flex: 1;
    border-radius: 18px;
    border: 2px solid #ececff;
    background: #f8f9ff;
    color: #8a8fa0;
    padding: 18px 16px;
    text-align: center;
    font-weight: 700;
    font-size: 18px;
    cursor: pointer;
    transition: 0.2s ease;
    user-select: none;
}

.tab.active {
    border-color: rgba(111, 99, 255, 0.35);
    background: linear-gradient(180deg, #f9f7ff 0%, #f2efff 100%);
    color: var(--primary);
    box-shadow: 0 8px 20px rgba(111, 99, 255, 0.10);
}

.panel {
    display: none;
}

.panel.active {
    display: block;
}

.input-group {
    margin-bottom: 22px;
}

.input-group label {
    display: block;
    margin-bottom: 10px;
    font-size: 15px;
    font-weight: 700;
    color: #35394a;
}

.field-row {
    display: flex;
    gap: 12px;
}

.field-row input[type="text"] {
    flex: 1;
    width: 100%;
    border: 2px solid #ececf4;
    border-radius: 16px;
    padding: 18px 18px;
    font-size: 16px;
    outline: none;
    background: #fff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field-row input[type="text"]:focus {
    border-color: rgba(111, 99, 255, 0.65);
    box-shadow: 0 0 0 4px rgba(111, 99, 255, 0.08);
}

.btn {
    border: none;
    border-radius: 16px;
    padding: 0 18px;
    min-height: 56px;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.18s ease;
    color: white;
    background: linear-gradient(90deg, var(--primary), var(--primary-2));
    box-shadow: 0 14px 30px rgba(111, 99, 255, 0.22);
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:disabled {
    cursor: not-allowed;
    opacity: 0.55;
    transform: none;
    box-shadow: none;
}

.upload-box {
    border: 2px dashed #d7d9e7;
    border-radius: 22px;
    padding: 28px 20px;
    text-align: center;
    color: #7d8191;
    background: linear-gradient(180deg, rgba(250, 250, 255, 0.9), rgba(245, 246, 251, 0.75));
    cursor: pointer;
    transition: 0.18s ease;
}

.upload-box:hover {
    border-color: rgba(111, 99, 255, 0.65);
    color: var(--primary);
}

.upload-box strong {
    display: block;
    font-size: 18px;
    margin-top: 6px;
    color: var(--text);
}

.upload-meta {
    margin-top: 14px;
    font-size: 13px;
    color: #9aa0ae;
}

.generate-btn {
    width: 100%;
    margin-top: 12px;
    min-height: 62px;
    border: none;
    border-radius: 18px;
    background: linear-gradient(90deg, #6f63ff, #7f67ff);
    color: white;
    font-size: 20px;
    font-weight: 800;
    cursor: pointer;
    box-shadow: 0 18px 34px rgba(111, 99, 255, 0.24);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 40px rgba(111, 99, 255, 0.30);
}

.avatar-preview {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    border: 6px solid #f2f3f9;
    background: linear-gradient(180deg, #fff 0%, #f7f8ff 100%);
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.03);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.avatar-placeholder {
    text-align: center;
    color: #c0c4d0;
    font-size: 14px;
    padding: 18px;
    line-height: 1.6;
}

#defaultAvatarIcon {
    width: 78px;
    height: 78px;
    border-radius: 50%;
    border: 2px dashed #d3d6e3;
    display: grid;
    place-items: center;
    font-size: 30px;
    margin: 0 auto 10px;
    color: #d0d4df;
    background: white;
}

#userAvatarPreview {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: none;
}

.preview-text {
    margin-top: 18px;
    color: #8a90a0;
    font-size: 15px;
    font-weight: 600;
}

.section {
    margin-top: 14px;
}

.section-title {
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 10px;
    color: #232530;
}

.section-desc {
    color: #7f8392;
    margin-bottom: 24px;
}

.gif-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    align-items: stretch;
}

.project-card {
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(231, 232, 241, 0.9);
    border-radius: 20px;
    padding: 12px;
    box-shadow: 0 8px 24px rgba(32, 34, 45, 0.05);
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
    overflow: hidden;
}

.project-card:hover {
    transform: translateY(-4px);
    border-color: rgba(111, 99, 255, 0.25);
    box-shadow: 0 16px 30px rgba(32, 34, 45, 0.08);
}

.project-card img.preview {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: contain;
    padding: 6px;
    border-radius: 16px;
    display: block;
    background: #f2f3f9;
}

.project-card[data-name="nailoong_avatar"] img.preview {
    transform: scale(0.84);
    transform-origin: center center;
}

.project-card h3 {
    margin: 10px 0 4px;
    font-size: 15px;
    line-height: 1.2;
    text-align: center;
}

.project-card p {
    margin: 0;
    text-align: center;
    color: #8c91a0;
    font-size: 12px;
}

.site-footer {
    position: fixed;
    left: 50%;
    bottom: 10px;
    transform: translateX(-50%);
    z-index: 25;
    width: auto;
    max-width: min(92vw, 780px);
    margin: 0;
    padding: 0.75rem 1rem;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(111, 99, 255, 0.88), rgba(125, 108, 255, 0.74));
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: rgba(255, 255, 255, 0.88);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.28rem;
    text-align: center;
    backdrop-filter: blur(10px);
    box-shadow: 0 16px 34px rgba(111, 99, 255, 0.22);
}

.site-footer p {
    margin: 0;
    font-size: 0.86rem;
}

.footer-link {
    color: #fff3b0;
    text-decoration: none;
    font-size: 0.9rem;
    border-bottom: 1px solid transparent;
}

.footer-link:hover {
    border-bottom-color: rgba(255, 243, 176, 0.92);
}

#resultModal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(26, 28, 42, 0.62);
    backdrop-filter: blur(10px);
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-content {
    width: min(92vw, 560px);
    background: rgba(255, 255, 255, 0.96);
    border-radius: 28px;
    padding: 28px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.28);
    text-align: center;
}

.modal-content h3 {
    margin: 0 0 8px;
    font-size: 24px;
}

#modalStatusText {
    margin: 0;
    font-weight: 700;
}

#resultImg {
    max-width: 100%;
    max-height: 58vh;
    border-radius: 18px;
    margin: 20px auto 0;
    display: none;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.12);
}

.modal-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 22px;
    flex-wrap: wrap;
}

.modal-actions .btn {
    min-width: 140px;
    min-height: 52px;
    border-radius: 16px;
}

.btn-secondary {
    background: #7b8193;
    box-shadow: none;
}

.btn-success {
    background: linear-gradient(90deg, #2fb26b, #22a55f);
    box-shadow: 0 14px 28px rgba(34, 165, 95, 0.22);
}

@media (max-width: 900px) {
    body {
        padding: 24px 14px 40px;
    }

    .main-card {
        flex-direction: column;
        padding: 22px;
    }

    .right {
        width: 100%;
        border-left: 0;
        border-top: 1px solid rgba(225, 227, 238, 0.9);
        padding-left: 0;
        padding-top: 28px;
        margin-top: 8px;
    }

    .tabs {
        flex-direction: column;
    }

    .field-row {
        flex-direction: column;
    }

    .title h1 {
        letter-spacing: 0.02em;
    }

    .gif-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 560px) {
    .gif-grid {
        grid-template-columns: 1fr;
    }
}