:root {
    --color-bg: #fff;
    --color-text: #1d1d1f;
    --color-text-secondary: #6e6e73;
    --color-text-tertiary: #86868b;
    --color-link: #0071e3;
    --color-link-hover: #0077ed;
    --color-fill: #f5f5f7;
    --color-fill-secondary: #e8e8ed;
    --color-card-bg: #fff;
    --color-border: #d2d2d7;
    --color-border-light: #e8e8ed;
    --color-success: #30d158;
    --color-error: #ff3b30;
    --color-warning: #ff9f0a;
    --radius-card: 18px;
    --radius-btn: 980px;
    --radius-input: 12px;
    --shadow-card: 0 4px 16px rgba(0,0,0,.06);
    --shadow-card-hover: 0 12px 40px rgba(0,0,0,.12);
    --nav-height: 52px;
    --font-stack: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --content-max-width: min(1200px, 88vw);
    --content-wide-max-width: min(1600px, 92vw);
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #000;
        --color-text: #f5f5f7;
        --color-text-secondary: #a1a1a6;
        --color-text-tertiary: #6e6e73;
        --color-link: #2997ff;
        --color-link-hover: #5ac8fa;
        --color-fill: #1c1c1e;
        --color-fill-secondary: #2c2c2e;
        --color-card-bg: #1c1c1e;
        --color-border: #38383a;
        --color-border-light: #2c2c2e;
        --shadow-card: 0 4px 16px rgba(0,0,0,.4);
        --shadow-card-hover: 0 12px 40px rgba(0,0,0,.6);
    }
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; scroll-behavior: smooth; }

body {
    font-family: var(--font-stack);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.47;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { color: var(--color-link); text-decoration: none; transition: color .3s cubic-bezier(.25,.1,.25,1); }
a:hover { color: var(--color-link-hover); }

img { max-width: 100%; height: auto; }

/* ========== Navigation ========== */
.globalnav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(22,22,23,.8);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: .5px solid rgba(255,255,255,.08);
}

.globalnav-content {
    width: 100%;
    max-width: var(--content-wide-max-width);
    margin: 0 auto;
    padding: 0 44px;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.globalnav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #f5f5f7;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    letter-spacing: -.01em;
    white-space: nowrap;
}

.globalnav-logo img { width: 30px; height: 30px; }

.globalnav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.globalnav-links a {
    color: rgba(245,245,247,.8);
    font-size: 12px;
    font-weight: 400;
    text-decoration: none;
    letter-spacing: .01em;
    transition: color .3s cubic-bezier(.25,.1,.25,1);
}

.globalnav-links a:hover,
.globalnav-links a.active { color: #f5f5f7; }

.globalnav-auth {
    display: flex;
    align-items: center;
    gap: 14px;
}

.nav-avatar {
    display: flex;
    align-items: center;
}

.nav-avatar svg { width: 30px; height: 30px; cursor: pointer; }

.nav-btn {
    font-size: 12px;
    padding: 6px 16px;
    border-radius: var(--radius-btn);
    text-decoration: none;
    font-weight: 400;
    transition: all .3s cubic-bezier(.25,.1,.25,1);
}

.nav-btn-secondary { color: rgba(245,245,247,.8); }
.nav-btn-secondary:hover { color: #f5f5f7; }

.nav-btn-primary {
    background: var(--color-link);
    color: #fff;
    padding: 6px 18px;
}

.nav-btn-primary:hover {
    background: var(--color-link-hover);
    color: #fff;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.nav-toggle svg {
    width: 18px;
    height: 18px;
    stroke: #d2d2d7;
    stroke-width: 1.5;
}

.globalnav-mobile-menu {
    display: none;
    background: rgba(22,22,23,.98);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    padding: 0 22px 28px;
    border-top: .5px solid rgba(255,255,255,.08);
}

.globalnav-mobile-menu.open { display: block; }

.mobile-nav-links {
    list-style: none;
    margin-bottom: 20px;
}

.mobile-nav-links li { border-bottom: .5px solid rgba(255,255,255,.06); }

.mobile-nav-links a {
    display: block;
    padding: 16px 0;
    color: #f5f5f7;
    font-size: 17px;
    font-weight: 600;
    letter-spacing: -.01em;
}

.mobile-nav-auth {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mobile-nav-user {
    color: #f5f5f7;
    font-size: 15px;
    font-weight: 600;
    padding: 8px 0;
}

@media (max-width: 734px) {
    .globalnav-content { padding: 0 16px; }
    .globalnav-links, .globalnav-auth { display: none; }
    .nav-toggle { display: block; }
}

/* ========== Buttons ========== */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--radius-btn);
    font-size: 17px;
    font-weight: 400;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all .3s cubic-bezier(.25,.1,.25,1);
    line-height: 1.2;
}

.btn-primary {
    background: var(--color-link);
    color: #fff;
    border-color: var(--color-link);
}

.btn-primary:hover {
    background: var(--color-link-hover);
    border-color: var(--color-link-hover);
    color: #fff;
}

.btn-secondary {
    background: transparent;
    color: var(--color-link);
    border-color: var(--color-link);
}

.btn-secondary:hover {
    background: var(--color-link);
    color: #fff;
}

.btn-danger {
    background: var(--color-error);
    color: #fff;
    border-color: var(--color-error);
}

.btn-danger:hover { opacity: .85; color: #fff; }

.btn-ghost {
    background: transparent;
    color: var(--color-link);
    border: none;
    padding: 8px 12px;
}

.btn-ghost:hover { background: var(--color-fill); }

.btn-sm {
    padding: 10px 20px;
    font-size: 14px;
}

.btn-icon { display: inline-flex; align-items: center; gap: 6px; }

/* ========== Hero ========== */
.hero {
    background: #000;
    background: radial-gradient(circle at 50% 10%, #0c1e3a 0%, #080e1a 40%, #000 78%);
    text-align: center;
    padding: 140px 22px 160px;
    color: #fff;
    position: relative;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to bottom, transparent, var(--color-bg));
    pointer-events: none;
}

@media (prefers-color-scheme: light) {
    .hero {
        background: #fff;
        background: radial-gradient(circle at 50% 10%, #f3e1c5 0%, #f7f1e5 40%, #fff 78%);
        color: #1d1d1f;
    }
}

.hero-logo { width: 120px; height: 120px; margin-bottom: 24px; }

.hero-title {
    font-size: 64px;
    font-weight: 700;
    letter-spacing: -.03em;
    line-height: 1.05;
    margin-bottom: 12px;
    text-shadow:
        0 0 40px rgba(41,151,255,.35),
        0 0 80px rgba(41,151,255,.15);
}

.hero-subtitle {
    font-size: 24px;
    font-weight: 400;
    color: rgba(245,245,247,.7);
    margin-bottom: 36px;
    letter-spacing: .01em;
    text-shadow:
        0 0 30px rgba(41,151,255,.25),
        0 0 60px rgba(41,151,255,.1);
}

@media (prefers-color-scheme: light) {
    .hero-title {
        text-shadow:
            0 0 40px rgba(214,104,58,.2),
            0 0 80px rgba(214,104,58,.08);
    }
    .hero-subtitle {
        color: rgba(29,29,31,.55);
        text-shadow:
            0 0 30px rgba(214,104,58,.15),
            0 0 60px rgba(214,104,58,.06);
    }
}

.hero-cta { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ========== Sections ========== */
.section {
    width: 100%;
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 100px 22px;
}

.section-dark { background: var(--color-fill); }
.section-full { max-width: 100%; padding-left: 0; padding-right: 0; }
.section-full > .section { width: 100%; max-width: var(--content-max-width); margin: 0 auto; padding: 100px 22px; }

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: 10px;
}

.headline-reduced {
    font-size: 48px;
    font-weight: 700;
    letter-spacing: -.025em;
    line-height: 1.08;
    margin-bottom: 16px;
}

.body-large {
    font-size: 21px;
    color: var(--color-text-secondary);
    max-width: 660px;
    margin: 0 auto;
    line-height: 1.5;
    letter-spacing: .01em;
}

.page-container {
    width: 100%;
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 56px 22px 100px;
}

.page-title {
    font-size: 40px;
    font-weight: 700;
    letter-spacing: -.025em;
    margin-bottom: 36px;
}

/* ========== Feature Grid ========== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    width: 100%;
    max-width: 880px;
    margin: 0 auto;
}

.feature-card {
    background: var(--color-card-bg);
    border-radius: var(--radius-card);
    padding: 40px 32px;
    border: 1px solid var(--color-border-light);
    transition: transform .4s cubic-bezier(.25,.1,.25,1), box-shadow .4s cubic-bezier(.25,.1,.25,1);
}

.feature-card:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-card-hover);
}

.feature-icon {
    margin-bottom: 18px;
    display: flex;
    align-items: center;
}

.feature-icon svg { display: block; }

.feature-card h3 {
    font-size: 21px;
    font-weight: 600;
    letter-spacing: -.01em;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.53;
}

@media (max-width: 734px) {
    .feature-grid { grid-template-columns: 1fr; }
    .hero-title { font-size: 40px; }
    .hero { padding: 100px 22px 80px; }
    .headline-reduced { font-size: 32px; }
}

/* ========== Cards ========== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.card {
    background: var(--color-card-bg);
    border-radius: var(--radius-card);
    overflow: hidden;
    border: 1px solid var(--color-border-light);
    transition: transform .4s cubic-bezier(.25,.1,.25,1), box-shadow .4s cubic-bezier(.25,.1,.25,1);
}

.card:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-card-hover);
}

.card-link { text-decoration: none; color: inherit; display: block; }

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-image-placeholder {
    width: 100%;
    height: 200px;
    background: var(--color-fill);
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-body { padding: 24px; }

.card-body h3 {
    font-size: 21px;
    font-weight: 600;
    letter-spacing: -.01em;
    margin-bottom: 6px;
    color: var(--color-text);
}

.card-body p {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.53;
    margin-bottom: 16px;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--color-text-tertiary);
    border-top: .5px solid var(--color-border-light);
    padding-top: 14px;
}

.meta-icon { display: inline-flex; align-items: center; margin-right: 4px; }
.meta-icon svg { display: block; }

/* ========== Tags ========== */
.tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: var(--radius-btn);
    font-size: 12px;
    font-weight: 500;
    background: var(--color-fill);
    color: var(--color-text-secondary);
}

.tag-success { background: rgba(48,209,88,.12); color: var(--color-success); }
.tag-error { background: rgba(255,59,48,.12); color: var(--color-error); }

/* ========== Forms ========== */
.form-container {
    width: 100%;
    max-width: 560px;
    margin: 0 auto;
    padding: 56px 22px 100px;
}

.form-container-wide { max-width: 820px; }

.form-card {
    background: var(--color-card-bg);
    border-radius: 20px;
    padding: 44px 40px;
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-card);
}

.form-title {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -.025em;
    margin-bottom: 8px;
}

.form-subtitle {
    font-size: 17px;
    color: var(--color-text-secondary);
    margin-bottom: 36px;
    line-height: 1.47;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
    letter-spacing: -.01em;
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-input);
    font-size: 17px;
    font-family: var(--font-stack);
    background: var(--color-bg);
    color: var(--color-text);
    transition: border-color .3s cubic-bezier(.25,.1,.25,1), box-shadow .3s cubic-bezier(.25,.1,.25,1);
    outline: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--color-link);
    box-shadow: 0 0 0 4px rgba(0,113,227,.12);
}

.form-textarea { resize: vertical; min-height: 100px; }

.form-hint {
    font-size: 12px;
    color: var(--color-text-tertiary);
    margin-top: 6px;
}

.form-actions { margin-top: 32px; }
.form-actions .btn { width: 100%; }

.form-footer {
    text-align: center;
    margin-top: 28px;
    font-size: 15px;
    color: var(--color-text-secondary);
}

/* ========== Survey / Questionnaire ========== */
.survey-section {
    margin-top: 36px;
    border-top: 1px solid var(--color-border-light);
    padding-top: 32px;
}

.survey-section h3 {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -.02em;
    margin-bottom: 4px;
}

.survey-desc {
    font-size: 15px;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
}

.survey-question-card { margin-bottom: 32px; }

.survey-question-header { margin-bottom: 14px; }

.survey-question-title {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 2px;
}

.survey-question-hint {
    font-size: 13px;
    color: var(--color-text-tertiary);
}

.selector-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
}

.selector-grid-compact {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
}

.selector-card {
    cursor: pointer;
    display: block;
}

.selector-input { display: none; }

.selector-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 18px 12px;
    border-radius: 14px;
    border: 2px solid var(--color-border-light);
    background: var(--color-card-bg);
    transition: all .3s cubic-bezier(.25,.1,.25,1);
    text-align: center;
}

.selector-content:hover { border-color: var(--color-link); }

.selector-input:checked + .selector-content {
    border-color: var(--color-link);
    background: rgba(0,113,227,.08);
}

.selector-icon { display: flex; align-items: center; justify-content: center; width: 28px; height: 28px; color: var(--color-link); }
.selector-icon svg { display: block; width: 28px; height: 28px; }

.selector-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text);
}

/* ========== Flash Messages ========== */
.flash-container {
    width: 100%;
    max-width: var(--content-max-width);
    margin: 16px auto;
    padding: 0 22px;
}

.flash-message {
    padding: 14px 20px;
    border-radius: var(--radius-input);
    font-size: 15px;
    margin-bottom: 8px;
    border: 1px solid;
}

.flash-success { background: rgba(48,209,88,.08); color: var(--color-success); border-color: rgba(48,209,88,.25); }
.flash-error { background: rgba(255,59,48,.08); color: var(--color-error); border-color: rgba(255,59,48,.25); }
.flash-info { background: rgba(0,113,227,.06); color: var(--color-link); border-color: rgba(0,113,227,.15); }

/* ========== Empty State ========== */
.empty-state {
    text-align: center;
    padding: 80px 20px;
}

.empty-state-icon { margin-bottom: 20px; display: flex; justify-content: center; }
.empty-state-icon svg { display: block; }

.empty-state h3 {
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -.01em;
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 17px;
    color: var(--color-text-secondary);
}

/* ========== Event Detail ========== */
.event-detail {
    width: 100%;
    max-width: 820px;
    margin: 0 auto;
    padding: 40px 22px 100px;
}

.event-cover {
    width: 100%;
    max-height: 440px;
    object-fit: cover;
    border-radius: 20px;
    margin-bottom: 36px;
}

.event-header h1 {
    font-size: 48px;
    font-weight: 700;
    letter-spacing: -.025em;
    line-height: 1.08;
    margin-bottom: 28px;
}

.event-meta-detail {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 36px;
    padding-bottom: 28px;
    border-bottom: .5px solid var(--color-border-light);
}

.event-meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    color: var(--color-text-secondary);
}

.event-content {
    font-size: 17px;
    line-height: 1.65;
    margin-bottom: 36px;
    white-space: pre-wrap;
}

.caption {
    font-size: 14px;
    color: var(--color-text-secondary);
}

/* ========== File Browser ========== */
.file-browser {
    background: var(--color-card-bg);
    border-radius: var(--radius-card);
    border: 1px solid var(--color-border-light);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 16px 24px;
    font-size: 14px;
    color: var(--color-text-secondary);
    border-bottom: .5px solid var(--color-border-light);
    flex-wrap: wrap;
}

.breadcrumb .sep { color: var(--color-text-tertiary); }

.file-list { list-style: none; }

.file-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 24px;
    border-bottom: .5px solid var(--color-border-light);
    transition: background .2s cubic-bezier(.25,.1,.25,1);
}

.file-item:last-child { border-bottom: none; }
.file-item:hover { background: var(--color-fill); }

.file-icon { flex-shrink: 0; display: flex; align-items: center; }
.file-icon svg { display: block; }

.file-info { flex: 1; min-width: 0; }

.file-name { font-size: 15px; font-weight: 500; }
.file-name a { text-decoration: none; }

.file-desc { font-size: 13px; color: var(--color-text-tertiary); margin-top: 2px; }

.file-meta {
    font-size: 13px;
    color: var(--color-text-tertiary);
    white-space: nowrap;
    margin-right: 12px;
}

.file-actions { flex-shrink: 0; }

/* ========== Admin ========== */
.admin-layout {
    width: 100%;
    max-width: var(--content-wide-max-width);
    margin: 0 auto;
    padding: 56px 44px 100px;
}

.admin-header {
    margin-bottom: 40px;
}

.admin-header h1 {
    font-size: 40px;
    font-weight: 700;
    letter-spacing: -.025em;
}

.admin-header p {
    font-size: 17px;
    color: var(--color-text-secondary);
    margin-top: 6px;
}

.admin-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 40px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--color-card-bg);
    border-radius: 20px;
    padding: 32px 28px;
    border: 1px solid var(--color-border-light);
    text-align: center;
    transition: transform .4s cubic-bezier(.25,.1,.25,1), box-shadow .4s cubic-bezier(.25,.1,.25,1);
}

.stat-card:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow-card-hover);
}

.stat-value {
    font-size: 48px;
    font-weight: 700;
    letter-spacing: -.03em;
    color: var(--color-link);
    line-height: 1.1;
}

.stat-label {
    font-size: 14px;
    color: var(--color-text-tertiary);
    margin-top: 8px;
    letter-spacing: .01em;
}

/* ========== Tables ========== */
.table-container {
    overflow-x: auto;
    background: var(--color-card-bg);
    border-radius: var(--radius-card);
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-card);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table thead th {
    text-align: left;
    padding: 16px 20px;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: .06em;
    border-bottom: .5px solid var(--color-border-light);
}

.data-table tbody td {
    padding: 16px 20px;
    border-bottom: .5px solid var(--color-border-light);
    vertical-align: middle;
}

.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: var(--color-fill); }

.table-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.inline-form { display: inline; }

.role-select {
    padding: 8px 12px;
    border-radius: 10px;
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 13px;
}

.tabs {
    display: flex;
    gap: 0;
    border-bottom: .5px solid var(--color-border-light);
    margin-bottom: 28px;
}

.tab-link {
    padding: 14px 24px;
    font-size: 15px;
    color: var(--color-text-secondary);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: all .3s cubic-bezier(.25,.1,.25,1);
}

.tab-link.active {
    color: var(--color-link);
    border-bottom-color: var(--color-link);
}

.tab-link:hover { color: var(--color-link); }

/* ========== Profile ========== */
.profile-header {
    display: flex;
    align-items: center;
    gap: 28px;
    margin-bottom: 48px;
}

.profile-avatar svg { width: 88px; height: 88px; }

.profile-info { flex: 1; }

.profile-name {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -.025em;
}

.profile-meta {
    font-size: 15px;
    color: var(--color-text-secondary);
    margin-top: 4px;
}

.profile-menu {
    background: var(--color-card-bg);
    border-radius: 20px;
    border: 1px solid var(--color-border-light);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.profile-menu-item {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 20px 24px;
    text-decoration: none;
    color: var(--color-text);
    border-bottom: .5px solid var(--color-border-light);
    transition: background .2s cubic-bezier(.25,.1,.25,1);
}

.profile-menu-item:last-child { border-bottom: none; }
.profile-menu-item:hover { background: var(--color-fill); color: var(--color-text); }

.profile-menu-danger:hover { background: rgba(255,59,48,.04); }

.profile-menu-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

.profile-menu-icon svg { display: block; }

.profile-menu-text { flex: 1; }

.profile-menu-title {
    font-size: 17px;
    font-weight: 500;
    display: block;
}

.profile-menu-desc {
    font-size: 13px;
    color: var(--color-text-tertiary);
    display: block;
    margin-top: 2px;
}

.profile-menu-arrow {
    font-size: 20px;
    color: var(--color-text-tertiary);
    font-weight: 300;
}

/* ========== Forum ========== */
.forum-page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 36px;
}

.forum-back-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    color: var(--color-link);
    margin-bottom: 8px;
}

.forum-back-link svg { display: block; }

.forum-breadcrumb {
    font-size: 14px;
    margin-bottom: 28px;
    color: var(--color-text-tertiary);
}

.forum-breadcrumb a { color: var(--color-link); }
.forum-breadcrumb .sep { margin: 0 6px; }

.forum-category-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.forum-category-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px 28px;
    background: var(--color-card-bg);
    border-radius: var(--radius-card);
    border: 1px solid var(--color-border-light);
    text-decoration: none;
    color: var(--color-text);
    transition: transform .3s cubic-bezier(.25,.1,.25,1), box-shadow .3s cubic-bezier(.25,.1,.25,1);
}

.forum-category-card:hover {
    transform: scale(1.01);
    box-shadow: var(--shadow-card-hover);
    color: var(--color-text);
}

.forum-category-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

.forum-category-icon svg { display: block; }

.forum-category-info { flex: 1; min-width: 0; }

.forum-category-name {
    font-size: 21px;
    font-weight: 600;
    letter-spacing: -.01em;
    margin-bottom: 4px;
}

.forum-category-desc {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.47;
}

.forum-category-stats {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
    flex-shrink: 0;
}

.forum-stat {
    font-size: 13px;
    color: var(--color-text-tertiary);
}

.forum-stat-latest {
    font-size: 12px;
    color: var(--color-text-tertiary);
}

.forum-category-arrow {
    font-size: 22px;
    color: var(--color-text-tertiary);
    font-weight: 300;
}

/* Topic List */
.topic-list {
    background: var(--color-card-bg);
    border-radius: var(--radius-card);
    border: 1px solid var(--color-border-light);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.topic-item {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 18px 24px;
    border-bottom: .5px solid var(--color-border-light);
    text-decoration: none;
    color: var(--color-text);
    transition: background .2s cubic-bezier(.25,.1,.25,1);
}

.topic-item:last-child { border-bottom: none; }
.topic-item:hover { background: var(--color-fill); color: var(--color-text); }

.topic-avatar svg { width: 40px; height: 40px; display: block; }

.topic-main { flex: 1; min-width: 0; }

.topic-title-row {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.topic-title {
    font-size: 17px;
    font-weight: 500;
    letter-spacing: -.01em;
}

.topic-badge {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: var(--radius-btn);
    font-weight: 500;
}

.topic-badge-pin { background: rgba(0,113,227,.1); color: var(--color-link); }
.topic-badge-lock { background: rgba(255,149,10,.1); color: var(--color-warning); }

.topic-meta {
    font-size: 13px;
    color: var(--color-text-tertiary);
    margin-top: 4px;
}

.topic-stats {
    display: flex;
    gap: 20px;
    flex-shrink: 0;
}

.topic-stat-item { text-align: center; }

.topic-stat-num {
    display: block;
    font-size: 17px;
    font-weight: 600;
    color: var(--color-text);
}

.topic-stat-label {
    font-size: 11px;
    color: var(--color-text-tertiary);
}

/* Topic Detail */
.topic-detail {
    margin-bottom: 36px;
}

.topic-detail-header { margin-bottom: 28px; }

.topic-detail-title-row {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}

.topic-detail-title-row h1 {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -.025em;
}

.topic-admin-actions {
    display: flex;
    gap: 8px;
}

/* Reply Cards */
.replies-section { margin-bottom: 36px; }

.replies-title {
    font-size: 21px;
    font-weight: 600;
    letter-spacing: -.01em;
    margin-bottom: 18px;
}

.reply-card {
    background: var(--color-card-bg);
    border-radius: var(--radius-card);
    border: 1px solid var(--color-border-light);
    padding: 24px 26px;
    margin-bottom: 14px;
}

.reply-card-op { border-left: 3px solid var(--color-link); }

.reply-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.reply-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.reply-avatar { width: 40px; height: 40px; }

.reply-author-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
}

.reply-time {
    font-size: 13px;
    color: var(--color-text-tertiary);
}

.reply-content {
    font-size: 16px;
    line-height: 1.65;
    color: var(--color-text);
}

.reply-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 14px;
    padding-top: 14px;
    border-top: .5px solid var(--color-border-light);
}

.reply-meta {
    font-size: 13px;
    color: var(--color-text-tertiary);
}

.reply-action-btns { display: flex; gap: 6px; }

.reply-form-section {
    background: var(--color-card-bg);
    border-radius: var(--radius-card);
    border: 1px solid var(--color-border-light);
    padding: 28px 26px;
}

.topic-locked-notice {
    background: var(--color-fill);
    border-radius: var(--radius-card);
    padding: 24px 26px;
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 15px;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4px;
    margin: 40px 0;
}

.pagination-btn {
    padding: 10px 20px;
    border-radius: var(--radius-btn);
    font-size: 14px;
    color: var(--color-link);
    text-decoration: none;
    transition: background .2s cubic-bezier(.25,.1,.25,1);
}

.pagination-btn:hover { background: var(--color-fill); }

.pagination-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 14px;
    color: var(--color-text);
    text-decoration: none;
    transition: all .2s cubic-bezier(.25,.1,.25,1);
}

.pagination-num:hover { background: var(--color-fill); color: var(--color-text); }
.pagination-num.active { background: var(--color-link); color: #fff; }

.pagination-ellipsis {
    color: var(--color-text-tertiary);
    padding: 0 4px;
}

/* ========== Footer ========== */
.site-footer {
    margin-top: auto;
    background: var(--color-fill);
    border-top: .5px solid var(--color-border-light);
    padding: 48px 22px;
}

.footer-content {
    width: 100%;
    max-width: var(--content-max-width);
    margin: 0 auto;
    text-align: center;
}

.footer-links {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 28px;
    margin-bottom: 18px;
}

.footer-links a {
    font-size: 13px;
    color: var(--color-text-secondary);
}

.footer-links a:hover { color: var(--color-link); }

.footer-copyright {
    font-size: 12px;
    color: var(--color-text-tertiary);
    letter-spacing: .01em;
}

/* ========== Animations ========== */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .8s cubic-bezier(.25,.1,.25,1), transform .8s cubic-bezier(.25,.1,.25,1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.scale-in {
    opacity: 0;
    transform: scale(.96);
    transition: opacity .6s cubic-bezier(.25,.1,.25,1), transform .6s cubic-bezier(.25,.1,.25,1);
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

.stagger-children > * { transition-delay: calc(var(--i, 0) * .12s); }

/* ========== Responsive ========== */
@media (max-width: 734px) {
    .section { padding: 56px 18px; }
    .page-container { padding: 36px 18px 60px; }
    .form-card { padding: 32px 24px; }
    .form-title { font-size: 28px; }
    .event-header h1 { font-size: 32px; }
    .profile-header { flex-direction: column; text-align: center; }
    .forum-category-card { flex-direction: column; text-align: center; gap: 12px; }
    .forum-category-stats { align-items: center; }
    .forum-category-arrow { display: none; }
    .topic-item { flex-direction: column; align-items: flex-start; gap: 8px; }
    .topic-stats { align-self: flex-end; }
    .reply-header { flex-direction: column; align-items: flex-start; gap: 4px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .card-grid { grid-template-columns: 1fr; }
    .admin-layout { padding: 32px 18px 60px; }
    .admin-header h1 { font-size: 28px; }
    .page-title { font-size: 28px; }
}

@media (max-width: 1068px) and (min-width: 735px) {
    .hero-title { font-size: 48px; }
    .headline-reduced { font-size: 40px; }
    .stats-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1069px) {
    .stats-grid { grid-template-columns: repeat(3, 1fr); }
}