/* Deep Ocean Dashboard Theme */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;700;900&family=Inter:wght@300;400;500;600&display=swap');

:root {
    /* Ocean Color Palette */
    --ocean-deep: #0A192F;
    --ocean-dark: #112240;
    --ocean-medium: #1B4965;
    --ocean-light: #62B6CB;
    --ocean-glow: #BEE9E8;
    --ocean-accent: #5EBEC4;
    --ocean-highlight: #8ECAE6;
    
    /* Semantic Colors */
    --bg-primary: var(--ocean-deep);
    --bg-secondary: var(--ocean-dark);
    --bg-glass: rgba(27, 73, 101, 0.3);
    --bg-glass-hover: rgba(27, 73, 101, 0.5);
    
    --text-primary: var(--ocean-glow);
    --text-secondary: var(--ocean-light);
    --text-muted: rgba(190, 233, 232, 0.6);
    
    --border-color: rgba(94, 190, 196, 0.2);
    --border-glow: rgba(94, 190, 196, 0.4);
    
    /* Status Colors */
    --color-income: #4ECDC4;
    --color-expense: #FF6B6B;
    --color-warning: #FFD93D;
    --color-success: #6BCF7F;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(94, 190, 196, 0.3);
    --shadow-glow-strong: 0 0 30px rgba(94, 190, 196, 0.5);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, var(--ocean-deep) 0%, #0D1B2A 50%, var(--ocean-dark) 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Animated background waves */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 20% 50%, rgba(27, 73, 101, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(94, 190, 196, 0.08) 0%, transparent 50%);
    animation: waves 20s ease-in-out infinite;
    pointer-events: none;
    z-index: -1;
}

@keyframes waves {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(-5%, -5%) rotate(1deg); }
    66% { transform: translate(-2%, -8%) rotate(-1deg); }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    color: var(--ocean-glow);
    letter-spacing: 0.05em;
    text-shadow: 0 0 20px rgba(94, 190, 196, 0.3);
}

h1 { font-size: 2.5rem; margin-bottom: var(--spacing-lg); }
h2 { font-size: 2rem; margin-bottom: var(--spacing-md); }
h3 { font-size: 1.5rem; margin-bottom: var(--spacing-md); }

/* Glass Card Effect */
.glass-card {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.glass-card:hover {
    background: var(--bg-glass-hover);
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

/* Buttons */
.btn {
    font-family: 'Orbitron', monospace;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-glass);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    backdrop-filter: blur(10px);
    font-size: 0.875rem;
    letter-spacing: 0.05em;
}

.btn:hover {
    background: var(--ocean-medium);
    border-color: var(--ocean-accent);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--ocean-medium) 0%, var(--ocean-accent) 100%);
    border: 1px solid var(--ocean-accent);
    color: white;
    font-weight: 600;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--ocean-accent) 0%, var(--ocean-light) 100%);
    box-shadow: var(--shadow-glow-strong);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.813rem;
}

.btn-icon {
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

/* Forms */
input, select, textarea {
    font-family: 'Inter', sans-serif;
    background: rgba(17, 34, 64, 0.6);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-size: 0.938rem;
    transition: all 0.3s ease;
    width: 100%;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--ocean-accent);
    box-shadow: 0 0 0 3px rgba(94, 190, 196, 0.1);
    background: rgba(17, 34, 64, 0.8);
}

input::placeholder {
    color: var(--text-muted);
}

label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
}

/* Tables */
table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin-top: var(--spacing-md);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

thead {
    background: linear-gradient(135deg, var(--ocean-medium) 0%, rgba(27, 73, 101, 0.8) 100%);
}

th {
    padding: 1rem;
    text-align: left;
    font-family: 'Orbitron', monospace;
    font-weight: 600;
    color: var(--ocean-glow);
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-bottom: 2px solid var(--border-glow);
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.938rem;
}

tbody tr {
    transition: all 0.2s ease;
}

tbody tr:hover {
    background: rgba(94, 190, 196, 0.08);
}

tbody tr:last-child td {
    border-bottom: none;
}

/* Status Colors */
.text-income {
    color: var(--color-income);
    font-weight: 600;
}

.text-expense {
    color: var(--color-expense);
    font-weight: 600;
}

.text-warning {
    color: var(--color-warning);
}

.text-success {
    color: var(--color-success);
}

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--ocean-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Utility Classes */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }

.text-center { text-align: center; }
.text-right { text-align: right; }

.font-bold { font-weight: 600; }
.font-mono { font-family: 'Orbitron', monospace; }

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--ocean-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--ocean-medium);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--ocean-accent);
}

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

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

@keyframes glow {
    0%, 100% { box-shadow: var(--shadow-glow); }
    50% { box-shadow: var(--shadow-glow-strong); }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease-out;
}

.animate-slide-in {
    animation: slideIn 0.3s ease-out;
}

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    table {
        font-size: 0.813rem;
    }
    
    th, td {
        padding: 0.75rem 0.5rem;
    }
}