@font-face {
    font-family: 'Orbix';
    src: url('/frontend/assets/fonts/Orbix-Regular.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
}

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

:root {
    --bg-primary: #050505;
    --bg-secondary: #0f0f0f;
    --bg-card: #161616;
    --bg-card-hover: #1e1e1e;
    --bg-tertiary: #1a1a1a;
    --bg-code: #222222;
    --bg-light: #f5f5f5;
    --bg-overlay: rgba(0, 0, 0, 0.92);
    --border-color: #262626;
    --border-hover: #333333;
    --border-strong: #444444;
    --text-primary: #ffffff;
    --text-secondary: #888888;
    --text-muted: #555555;
    --text-on-accent: #000000;
    --text-on-light: #1a1a1a;
    --text-disabled: #666666;
    --text-placeholder: #aaaaaa;
    --accent-primary: #ff8c00;
    --accent-secondary: #ff9f43;
    --accent-bright: #ff6600;
    --sidebar-width: 240px;
    --font-primary: 'Inter', sans-serif;
    --font-display: 'Orbix', sans-serif;
    --color-success: #00c864;
    --color-success-dark: #27ae60;
    --color-success-bg: #00a852;
    --color-error: #ff4444;
    --color-error-dark: #c0392b;
    --color-error-bright: #e74c3c;
    --color-warning: #ffc107;
    --color-warning-dark: #e67e22;
    --color-info: #3498db;
    --color-info-bright: #0096ff;
    --color-purple: #a537fd;
    --color-yellow: #ffc800;
    --color-green-tag: #4caf50;
    --toast-success-bg: #e8f8ef;
    --toast-error-bg: #fde8e8;
    --toast-warning-bg: #fff3e0;
    --toast-info-bg: #e8f4fd;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

body {
    background-color: var(--bg-primary);
    background-image:
        radial-gradient(ellipse at top, var(--bg-secondary) 0%, transparent 70%),
        radial-gradient(ellipse at bottom, var(--bg-tertiary) 0%, transparent 70%);
    color: var(--text-primary);
    font-family: var(--font-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

.app-container.d-none,
.auth-page.d-none {
    display: none !important;
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-strong);
}

.step-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 0 30px;
    gap: 0;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: all 0.3s;
}

.step-number {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s;
}

.step.active .step-number {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: var(--bg-primary);
}

.step.completed .step-number {
    background: rgba(0, 200, 100, 0.2);
    border-color: var(--color-success);
    color: var(--color-success);
}

.step-label {
    font-size: 11px;
    color: var(--text-muted);
    transition: all 0.3s;
}

.step.active .step-label {
    color: var(--accent-primary);
    font-weight: 500;
}

.step.completed .step-label {
    color: var(--color-success);
}

.step-line {
    width: 40px;
    height: 2px;
    background: var(--border-color);
    margin: 0 4px 20px;
    transition: background 0.3s;
}

.step-line.completed {
    background: var(--color-success);
}

.step-content {
    animation: fadeIn 0.3s ease;
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    padding: 6px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 13px;
    transition: all 0.2s;
}

.checkbox-item:hover {
    border-color: var(--accent-primary);
}

.checkbox-item input[type="checkbox"] {
    margin: 0;
}

.checkbox-item input[type="checkbox"]:checked + span {
    color: var(--accent-primary);
}

.radio-group {
    display: flex;
    gap: 12px;
}

.radio-item {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    padding: 6px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 13px;
    transition: all 0.2s;
}

.radio-item:hover {
    border-color: var(--accent-primary);
}

.radio-item input[type="radio"] {
    margin: 0;
}

.radio-item input[type="radio"]:checked + span {
    color: var(--accent-primary);
}

.award-item,
.internship-item,
.page-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 12px;
    position: relative;
}

.award-item .remove-item,
.internship-item .remove-item,
.page-item .remove-item {
    position: absolute;
    top: 8px;
    right: 8px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    font-size: 12px;
    transition: all 0.2s;
}

.award-item .remove-item:hover,
.internship-item .remove-item:hover,
.page-item .remove-item:hover {
    color: var(--color-error);
    background: rgba(255, 68, 68, 0.1);
}

.confirmation-letter {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    min-height: 300px;
}

.confirmation-header {
    text-align: center;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.confirmation-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--accent-primary);
}

.confirmation-body {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-secondary);
    white-space: pre-wrap;
}

.confirmation-actions {
    display: flex;
    justify-content: center;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.required {
    color: var(--color-error);
}

.event-name-placeholder {
    color: var(--accent-primary);
    font-weight: 500;
}

.confirm-check {
    background: rgba(255, 140, 0, 0.1);
    border: 1px solid var(--accent-primary);
}

.confirm-check input[type="checkbox"]:checked + span {
    color: var(--accent-primary);
}

.apply-modal-content {
    max-height: 90vh;
    overflow-y: auto;
}

.apply-modal-content::-webkit-scrollbar {
    width: 6px;
}

.apply-modal-content::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

.apply-modal-content::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.apply-modal-content::-webkit-scrollbar-thumb:hover {
    background: var(--border-strong);
}

.btn-success-custom {
    background: var(--color-success);
    color: var(--bg-primary);
}

.btn-success-custom:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-custom.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.event-selection-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.event-selection-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 16px;
    cursor: pointer;
    transition: all 0.2s;
}

.event-selection-item:hover {
    border-color: var(--accent-primary);
    background: var(--bg-card-hover);
}

.event-selection-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.event-selection-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.event-selection-time {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.event-selection-time i {
    color: var(--accent-primary);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes modalFadeIn {
    from { 
        opacity: 0;
        transform: scale(0.9) translateY(-20px);
    }
    to { 
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes modalFadeOut {
    from { 
        opacity: 1;
        transform: scale(1) translateY(0);
    }
    to { 
        opacity: 0;
        transform: scale(0.9) translateY(-20px);
    }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(100px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes settingsFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes dropdownSlideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes datetimePickerFadeIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}