:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    
    --border: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    --radius: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
}

body.dark-theme {
    --primary: #818cf8;
    --primary-dark: #6366f1;
    --secondary: #a78bfa;
    --success: #34d399;
    --danger: #f87171;
    
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #64748b;
    
    --border: #334155;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
}

body.dark-mode {
    --primary: #818cf8;
    --primary-dark: #6366f1;
    --secondary: #a78bfa;
    --success: #34d399;
    --danger: #f87171;
    
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #64748b;
    
    --border: #334155;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    position: relative;
    transition: all 0.3s ease;
}

.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    top: -200px;
    left: -200px;
}

.blob-2 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, #3b82f6 0%, #2dd4bf 100%);
    bottom: -175px;
    right: -175px;
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -30px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

.registration-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
    z-index: 1;
}

.registration-header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 20px;
    animation: slideDown 0.5s ease;
}

body.dark-theme .registration-header {
    background: rgba(15, 23, 42, 0.8);
}

body.dark-mode .registration-header {
    background: rgba(15, 23, 42, 0.8);
}

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

.btn-back {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    border: none;
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.btn-back:hover {
    background: var(--primary);
    color: white;
    transform: translateX(-4px);
}

.header-content {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    flex-shrink: 0;
}

.header-content h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

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

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    flex-shrink: 0;
}

.user-info i {
    color: var(--primary);
    font-size: 16px;
}

.theme-toggle {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    border: none;
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.theme-toggle:hover {
    background: var(--primary);
    color: white;
    transform: scale(1.1);
}

.registration-content {
    animation: slideUp 0.5s ease 0.2s both;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.application-status {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-lg);
    display: flex;
    gap: 24px;
    align-items: center;
}

.status-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius);
    background: rgba(245, 158, 11, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: var(--warning);
    flex-shrink: 0;
}

.status-content {
    flex: 1;
}

.status-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.status-content p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.status-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.application-form {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-lg);
}

.form-section {
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 2px solid var(--border);
}

.form-section:last-of-type {
    margin-bottom: 32px;
    padding-bottom: 0;
    border-bottom: none;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.section-header i {
    font-size: 24px;
    color: var(--primary);
}

.section-header h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.form-group {
    margin-bottom: 24px;
}

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

.required {
    color: var(--danger);
    margin-left: 4px;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

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

.char-counter {
    text-align: right;
    font-size: 12px;
    color: var(--text-tertiary);
    margin-top: 6px;
}

.char-counter span {
    color: var(--primary);
    font-weight: 600;
}

.checkbox-group {
    margin-bottom: 16px;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.checkbox-custom {
    min-width: 24px;
    width: 24px;
    height: 24px;
    border: 2px solid var(--border);
    border-radius: 6px;
    background: var(--bg-tertiary);
    transition: all 0.3s ease;
    flex-shrink: 0;
    position: relative;
    margin-top: 2px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.checkbox-custom::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    color: white;
    font-size: 12px;
    transition: transform 0.2s ease;
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-color: var(--primary);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom::after {
    transform: translate(-50%, -50%) scale(1);
}

.checkbox-text {
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.5;
}

.form-actions {
    display: flex;
    gap: 16px;
    justify-content: flex-end;
    margin-top: 32px;
}

.btn-primary,
.btn-secondary,
.btn-danger {
    padding: 14px 28px;
    border: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--bg-primary);
    transform: translateY(-2px);
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 40px;
    max-width: 450px;
    text-align: center;
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: white;
}

.modal-content.success .modal-icon {
    background: linear-gradient(135deg, var(--success) 0%, #34d399 100%);
}

.modal-content h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.modal-content p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.6;
}

.modal-hint {
    font-size: 13px;
    color: var(--text-tertiary);
    font-style: italic;
    margin-bottom: 24px;
}

.rules-link {
    color: var(--primary);
    text-decoration: underline;
    font-weight: 600;
    cursor: pointer;
    transition: color 0.3s ease;
}

.rules-link:hover {
    color: var(--primary-dark);
}

.rules-modal-content {
    max-width: 700px;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    border: none;
    color: var(--text-primary);
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10;
}

.modal-close:hover {
    background: var(--danger);
    color: white;
    transform: rotate(90deg);
}

.rules-content {
    text-align: left;
    padding: 20px;
    background: var(--bg-tertiary);
    border-radius: var(--radius);
    margin: 20px 0;
    max-height: 400px;
    overflow-y: auto;
    line-height: 1.8;
    white-space: pre-wrap;
    font-size: 14px;
    color: var(--text-secondary);
}

.rules-content::-webkit-scrollbar {
    width: 8px;
}

.rules-content::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

.rules-content::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 4px;
}

.rules-content::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

@media (max-width: 768px) {
    .registration-container {
        padding: 12px;
    }

    .registration-header {
        flex-wrap: wrap;
        padding: 16px;
    }

    .header-content {
        order: 2;
        width: 100%;
    }

    .user-info {
        order: 3;
        width: 100%;
        justify-content: center;
    }

    .application-form {
        padding: 20px;
    }

    .form-section {
        margin-bottom: 32px;
        padding-bottom: 32px;
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions button {
        width: 100%;
    }

    .application-status {
        flex-direction: column;
        text-align: center;
        padding: 24px;
    }

    .status-actions {
        flex-direction: column;
        width: 100%;
    }

    .status-actions button {
        width: 100%;
    }
}