/* QuantumEdge Tools - Style.css */
/* Dark Theme with Electric Blue Accent */

:root {
    --bg-primary: #0a0a0f;
    --bg-card: #12121a;
    --border-color: #1a1a2e;
    --accent: #00d4ff;
    --accent-dim: rgba(0, 212, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #606070;
    --success: #00ff88;
    --warning: #ffaa00;
    --danger: #ff4466;
}

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

html {
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header .container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    text-align: center;
}

/* Navigation Tabs */
.nav-tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}

.tab-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.tab-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg-primary);
    font-weight: 600;
}

/* Main Content */
.main-content {
    padding: 2rem 0;
    min-height: calc(100vh - 180px);
}

/* Tab Content */
.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

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

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

.tool-header h1 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--text-primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tool-header p {
    color: var(--text-secondary);
}

/* Calculator Card */
.calculator-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.input-group {
    margin-bottom: 1.25rem;
}

.input-group label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.input-group input {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input-group input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-dim);
}

.calc-btn {
    width: 100%;
    padding: 1rem;
    background: var(--accent);
    border: none;
    border-radius: 8px;
    color: var(--bg-primary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.calc-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px var(--accent-dim);
}

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

/* Results Card */
.results-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.result-item:last-child {
    border-bottom: none;
}

.result-label {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.result-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.result-value.accent {
    color: var(--accent);
}

/* Progress Bar */
.progress-container {
    margin-top: 1.5rem;
}

.progress-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.progress-bar {
    height: 12px;
    background: var(--bg-primary);
    border-radius: 6px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--success));
    border-radius: 6px;
    transition: width 0.5s ease;
}

/* Premium CTA */
.premium-cta {
    text-align: center;
    padding: 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    background: var(--accent-dim);
    border-radius: 8px;
    margin-top: 1.5rem;
}

.premium-cta a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}

.premium-cta a:hover {
    text-decoration: underline;
}

/* Expenses Section */
.expenses-section {
    margin-top: 1.5rem;
}

.expenses-section h3 {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 1rem;
}

.expense-row {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.expense-name {
    flex: 1;
    padding: 0.875rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
}

.expense-amount {
    width: 120px;
    padding: 0.875rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
}

.expense-name:focus,
.expense-amount:focus {
    outline: none;
    border-color: var(--accent);
}

.add-expense-btn {
    background: transparent;
    border: 1px dashed var(--border-color);
    color: var(--text-secondary);
    padding: 0.75rem;
    border-radius: 8px;
    width: 100%;
    cursor: pointer;
    transition: border-color 0.2s ease, color 0.2s ease;
}

.add-expense-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Canvas */
canvas {
    display: block;
    margin: 1.5rem auto 0;
    max-width: 100%;
}

/* Footer */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (min-width: 640px) {
    .header .container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }

    .logo {
        text-align: left;
    }

    .nav-tabs {
        justify-content: flex-end;
    }

    .calculator-card {
        padding: 2rem;
    }

    .results-card {
        padding: 2rem;
    }

    .result-value {
        font-size: 1.5rem;
    }
}

@media (min-width: 768px) {
    .calculator-card {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .calculator-card .calc-btn {
        grid-column: span 2;
    }

    .calculator-card .expenses-section {
        grid-column: span 2;
    }

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

@media (min-width: 900px) {
    html {
        font-size: 18px;
    }
}

/* Animation for results */
.results-card.show {
    animation: slideUp 0.4s ease;
}

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