:root {
    --primary: #0f766e;
    --primary-dark: #0b4f48;
    --primary-light: #16a394;
    --secondary: #f97316;
    --success: #16a34a;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #2563eb;
    
    --bg-primary: #0b1220;
    --bg-secondary: #11192a;
    --bg-tertiary: #0f172a;
    --panel: rgba(255, 255, 255, 0.05);
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.1);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 20px 40px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 25px 45px rgba(0, 0, 0, 0.45);
    --shadow-xl: 0 40px 70px rgba(0, 0, 0, 0.55);
    
    --radius-sm: 0.5rem;
    --radius: 0.75rem;
    --radius-md: 1rem;
    --radius-lg: 1.25rem;
    
    --transition: all 0.25s ease;
}

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

body {
    font-family: 'Space Grotesk', 'Inter', 'Segoe UI', system-ui, sans-serif;
    background: radial-gradient(circle at 20% 20%, rgba(22, 163, 148, 0.15), transparent 30%),
                radial-gradient(circle at 80% 0%, rgba(249, 115, 22, 0.12), transparent 30%),
                linear-gradient(135deg, #0b1220 0%, #0b182b 40%, #0c1c32 100%);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
    padding: 2.5rem 1.25rem 3rem;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: radial-gradient(1200px circle at 15% 15%, rgba(22, 163, 148, 0.08), transparent 35%),
                radial-gradient(900px circle at 90% 10%, rgba(249, 115, 22, 0.06), transparent 30%);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* Header */
.header {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
    border-radius: var(--radius-lg);
    padding: 1.5rem 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    animation: slideDown 0.5s ease;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    width: 2.5rem;
    height: 2.5rem;
    color: var(--secondary);
    stroke-width: 2;
}

.logo h1 {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.06);
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border);
}

.status-dot {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    background: var(--text-muted);
    animation: pulse 2s ease-in-out infinite;
}

.status-badge.healthy .status-dot {
    background: var(--success);
}

.status-badge.unhealthy .status-dot {
    background: var(--danger);
}

/* Main Content */
.main-content {
    display: grid;
    gap: 2rem;
    animation: fadeIn 0.6s ease 0.2s both;
}

/* Cards */
.card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: var(--border-hover);
}

.card-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.card-header p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.card-body {
    padding: 2rem;
}

/* Upload Zone */
.upload-zone {
    border: 1.5px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.04);
}

.upload-zone:hover {
    border-color: var(--primary-light);
    background: rgba(15, 118, 110, 0.08);
}

.upload-zone.drag-over {
    border-color: var(--primary-light);
    background: linear-gradient(135deg, rgba(15, 118, 110, 0.12) 0%, rgba(249, 115, 22, 0.12) 100%);
}

.upload-icon {
    width: 3rem;
    height: 3rem;
    color: var(--primary-light);
    margin-bottom: 1rem;
    stroke-width: 2;
}

.upload-zone h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.upload-zone p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.browse-link {
    color: var(--secondary);
    font-weight: 500;
    cursor: pointer;
}

.browse-link:hover {
    text-decoration: underline;
}

.file-formats {
    display: block;
    margin-top: 0.75rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* File Preview */
.file-preview {
    margin-top: 1.5rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.04);
    border-radius: var(--radius);
    animation: slideIn 0.3s ease;
    border: 1px solid var(--border);
}

.file-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.file-icon {
    width: 2.5rem;
    height: 2.5rem;
    color: var(--primary-light);
    stroke-width: 2;
    flex-shrink: 0;
}

.file-details {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.file-name {
    font-weight: 500;
    color: var(--text-primary);
}

.file-size {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Form Elements */
.form-group {
    margin-top: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.select-wrapper {
    position: relative;
}

.select-wrapper::after {
    content: '';
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid var(--text-secondary);
    pointer-events: none;
}

select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    appearance: none;
}

select:hover {
    border-color: var(--border-hover);
}

select:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.18);
}

select:disabled {
    background: rgba(255, 255, 255, 0.03);
    cursor: not-allowed;
    opacity: 0.6;
}

input[type="text"],
input[type="date"],
input[type="number"] {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    transition: var(--transition);
}

input:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.18);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    min-height: 3rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 120%);
    color: white;
    box-shadow: var(--shadow-md);
    margin-top: 1.5rem;
    width: 100%;
}

.btn-primary:hover:not(:disabled) {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.btn-secondary:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.08);
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border: none;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--primary-light);
}

.btn-icon svg {
    width: 1.25rem;
    height: 1.25rem;
    stroke-width: 2;
}

.btn-icon-right {
    width: 1.25rem;
    height: 1.25rem;
    stroke-width: 2;
}

/* Projects List */
.projects-list {
    display: grid;
    gap: 1rem;
}

.project-item {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.04);
    border-radius: var(--radius);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
    border: 1px solid var(--border);
}

.project-item:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--border-hover);
}

.project-name {
    font-weight: 500;
    color: var(--text-primary);
}

.project-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Approvals */
.approvals-body {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
}

.approval-actions {
    grid-column: 1 / -1;
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-start;
    margin-top: 0.25rem;
}

.events-total {
    margin-left: auto;
    background: rgba(15, 118, 110, 0.1);
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    border: 1px solid var(--primary-light);
    color: var(--text-primary);
    font-size: 0.95rem;
}

.events-list {
    grid-column: 1 / -1;
    display: grid;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.event-item {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.04);
    border-radius: var(--radius);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--border);
}

.event-meta {
    display: flex;
    gap: 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.event-status {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.6rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.event-status.approved {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.event-status.pending {
    background: rgba(15, 118, 110, 0.1);
    color: var(--primary-light);
}

/* Results */
.result-success {
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(16, 163, 148, 0.18) 0%, rgba(16, 163, 148, 0.1) 100%);
    border: 1px solid rgba(16, 163, 148, 0.35);
    border-radius: var(--radius);
    animation: slideIn 0.3s ease;
}

.result-success h3 {
    color: var(--success);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.result-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.stat-item {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.04);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.toast {
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 1rem;
    min-width: 300px;
    animation: slideInRight 0.3s ease;
}

.toast.success {
    border-left: 4px solid var(--success);
}

.toast.error {
    border-left: 4px solid var(--danger);
}

.toast.warning {
    border-left: 4px solid var(--warning);
}

.toast.info {
    border-left: 4px solid var(--info);
}

/* Loading */
.loading {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 999;
    backdrop-filter: blur(4px);
}

.loading-overlay p {
    color: white;
    margin-top: 1rem;
    font-weight: 500;
}

.spinner {
    width: 3rem;
    height: 3rem;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem 0;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    margin-top: 2rem;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding: 1rem;
    }
    
    .header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .card-body {
        padding: 1.5rem;
    }
    
    .toast-container {
        right: 1rem;
        left: 1rem;
    }
    
    .toast {
        min-width: auto;
    }
}