@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');
@import url('https://cdn.jsdelivr.net/npm/flatpickr/dist/flatpickr.min.css');
@import url('https://cdn.jsdelivr.net/npm/flatpickr/dist/themes/dark.css');

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

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-tertiary: #1a1a1a;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-hover: rgba(255, 255, 255, 0.05);
    
    --text-primary: #ffffff;
    --text-secondary: #a3a3a3;
    --text-tertiary: #737373;
    
    --accent-primary: #8b5cf6;
    --accent-secondary: #a78bfa;
    --accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
    
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;
    
    --border-color: rgba(255, 255, 255, 0.08);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 24px 48px rgba(0, 0, 0, 0.5);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Animated background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(236, 72, 153, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 40% 20%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
    animation: backgroundFloat 20s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes backgroundFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-20px, -20px) scale(1.1); }
    66% { transform: translate(20px, -10px) scale(0.95); }
}

/* Main container */
.app-container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInDown 0.8s ease-out;
}

.logo-container {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.logo {
    width: 48px;
    height: 48px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    animation: logoSpin 20s linear infinite;
}

@keyframes logoSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

h1 {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
    font-weight: 400;
}

/* Config badge */
.config-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
    animation: fadeIn 1s ease-out 0.2s both;
    backdrop-filter: blur(10px);
}

.config-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

/* Main card */
.main-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 0.8s ease-out 0.4s both;
    position: relative;
    overflow: hidden;
}

.main-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Date section */
.section {
    margin-bottom: 2rem;
}

.section-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.date-controls {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.date-input {
    flex: 1;
    min-width: 200px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.875rem 1.25rem;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-base);
    cursor: pointer;
}

.date-input:hover {
    background: var(--bg-hover);
    border-color: var(--accent-primary);
}

.date-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

/* Primary button */
.btn-primary {
    background: var(--accent-gradient);
    color: white;
    border: none;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(139, 92, 246, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

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

/* Quick date pills */
.quick-dates {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.date-pill {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.date-pill:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--accent-primary);
    transform: translateY(-1px);
}

/* Status section */
.status-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    max-height: 300px;
    overflow-y: auto;
    transition: all var(--transition-base);
}

.status-container::-webkit-scrollbar {
    width: 8px;
}

.status-container::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

.status-container::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.status-container::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

.status-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    margin-bottom: 0.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    animation: slideIn 0.3s ease-out;
}

.status-item:last-child {
    margin-bottom: 0;
}

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

.status-icon {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
    position: relative;
}

.status-icon.loading {
    background: var(--warning);
    animation: statusPulse 1.5s ease-in-out infinite;
}

.status-icon.success {
    background: var(--success);
}

.status-icon.error {
    background: var(--error);
}

.status-icon.info {
    background: var(--info);
}

@keyframes statusPulse {
    0%, 100% { 
        opacity: 1; 
        box-shadow: 0 0 0 0 currentColor;
    }
    50% { 
        opacity: 0.6;
        box-shadow: 0 0 0 6px rgba(245, 158, 11, 0.2);
    }
}

.status-text {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* Results section */
.results-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2rem;
    margin-top: 2rem;
    backdrop-filter: blur(10px);
    animation: fadeInUp 0.5s ease-out;
}

.pdf-grid {
    display: grid;
    gap: 1rem;
    margin-top: 1.5rem;
}

.pdf-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    text-decoration: none;
    color: var(--text-primary);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.pdf-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--accent-gradient);
    transform: translateX(-100%);
    transition: transform var(--transition-base);
}

.pdf-item:hover {
    background: var(--bg-hover);
    transform: translateX(4px);
    border-color: var(--accent-primary);
}

.pdf-item:hover::before {
    transform: translateX(0);
}

.pdf-icon {
    width: 40px;
    height: 40px;
    background: var(--error);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.75rem;
    flex-shrink: 0;
}

.pdf-name {
    font-size: 0.875rem;
    font-weight: 500;
}

/* Executive items styling */
.executive-item {
    opacity: 0.8;
    transform: scale(0.95);
}

.executive-icon {
    width: 32px !important;
    height: 32px !important;
    font-size: 0.625rem !important;
}

.executive-name {
    font-size: 0.75rem !important;
    opacity: 0.9;
}

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

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

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

/* Loading spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
    margin-right: 0.5rem;
}

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

/* Success animation */
.success-count {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--success);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.875rem;
    animation: bounceIn 0.5s ease-out;
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.95);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* Mobile responsive */
@media (max-width: 768px) {
    .app-container {
        padding: 1rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .main-card {
        padding: 1.5rem;
    }
    
    .date-controls {
        flex-direction: column;
    }
    
    .date-input {
        width: 100%;
    }
}

/* Subtle hover effects */
.hover-lift {
    transition: transform var(--transition-fast);
}

.hover-lift:hover {
    transform: translateY(-2px);
}

/* Hide scrollbar but keep functionality */
.hide-scrollbar {
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.hide-scrollbar::-webkit-scrollbar {
    display: none;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    max-width: 400px;
    width: 90%;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.4s ease-out;
    position: relative;
    overflow: hidden;
}

.modal-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    text-align: center;
    margin-bottom: 2rem;
}

.modal-header .logo-container {
    margin-bottom: 1rem;
}

.modal-header h1 {
    font-size: 2rem;
}

.modal-header .subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.modal-input {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.875rem 1.25rem;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-base);
}

.modal-input:hover {
    background: var(--bg-hover);
    border-color: var(--accent-primary);
}

.modal-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.modal-input.error {
    border-color: var(--error);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.error-message {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: none;
}

.error-message.show {
    display: block;
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.modal-hidden {
    display: none !important;
}

/* Flatpickr overrides */
.flatpickr-calendar {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}
.flatpickr-months,
.flatpickr-weekdays {
    background: var(--bg-secondary);
    color: var(--text-primary);
}
.flatpickr-weekday {
    color: var(--text-secondary);
}
.flatpickr-day {
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
}
.flatpickr-day.today {
    border-color: var(--accent-secondary);
}
.flatpickr-day:hover {
    background: var(--bg-hover);
}
.flatpickr-day.selected,
.flatpickr-day.startRange,
.flatpickr-day.endRange {
    background: var(--accent-primary);
    color: #fff;
}
.flatpickr-prev-month,
.flatpickr-next-month,
.flatpickr-current-month {
    color: var(--text-primary);
}