/* Premium Modern Design */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Clean, Professional Color Palette */
    --primary: #2563eb;          /* Professional Blue */
    --primary-dark: #1e40af;
    --background: #fafafa;       /* Off-white */
    --surface: #ffffff;          /* Pure white */
    --text-primary: #0f172a;     /* Near black */
    --text-secondary: #64748b;   /* Medium gray */
    --text-tertiary: #94a3b8;    /* Light gray */
    --border: #e2e8f0;           /* Subtle border */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Ad Container - Clean */
.ad-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 10px 20px;
}

.ad-top {
    margin-bottom: 24px;
}

.ad-bottom {
    margin-top: 60px;
    margin-bottom: 24px;
}

.ad-placeholder-minimal {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 15px;
    text-align: center;
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 80px 20px 60px;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
    line-height: 1.1;
    color: var(--text-primary);
}

.gradient-text {
    color: var(--text-primary);
    /* Remove gradients - keep it clean */
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    color: var(--text-secondary);
    font-weight: 400;
    max-width: 600px;
    margin: 0 auto;
}

/* Calculators Grid */
.calculators-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    padding: 40px 0;
    max-width: 1200px;
    margin: 0 auto;
}

/* Clean Card */
.glass-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

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

/* Calculator Card */
.calc-card {
    text-decoration: none;
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.calc-card.coming-soon {
    opacity: 0.5;
    cursor: not-allowed;
}

.calc-card.coming-soon:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
    border-color: var(--border);
}

.card-icon {
    width: 48px;
    height: 48px;
    background: var(--primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.card-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.calc-card h2 {
    font-size: 1.375rem;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
    color: var(--text-primary);
}

.calc-card p {
    color: var(--text-secondary);
    font-size: 0.938rem;
    line-height: 1.6;
    margin-bottom: 24px;
    flex-grow: 1;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.calc-tag {
    font-size: 0.75rem;
    padding: 4px 12px;
    background: var(--background);
    border-radius: 6px;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.calc-tag.soon {
    background: var(--background);
    color: var(--text-tertiary);
}

.arrow {
    font-size: 1.25rem;
    color: var(--text-tertiary);
    transition: all 0.2s ease;
}

.calc-card:hover .arrow {
    color: var(--primary);
    transform: translateX(4px);
}

/* Footer */
.footer {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    border-top: 1px solid var(--border);
    margin-top: 80px;
}

.footer a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer a:hover {
    color: var(--primary);
}

/* Responsive */
@media (max-width: 768px) {
    .hero {
        padding: 60px 20px 40px;
    }

    .calculators-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 30px 0;
    }

    .glass-card {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 40px 20px 30px;
    }

    .card-icon {
        width: 40px;
        height: 40px;
    }

    .card-icon svg {
        width: 20px;
        height: 20px;
    }

    .calc-card h2 {
        font-size: 1.25rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background: var(--primary);
    color: white;
}

/* Remove all background elements */
.background-gradient,
.glass-orbs {
    display: none;
}