/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #1a1a2e;
    background-color: #f8f9fc;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Typography ===== */
h1 {
    font-size: 2.5rem;
    color: #1a1a2e;
    margin-bottom: 0.5rem;
}

h1 span {
    color: #e94560;
}

h2 {
    font-size: 2rem;
    color: #1a1a2e;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.3rem;
    color: #1a1a2e;
    margin-bottom: 0.5rem;
}

p {
    color: #555;
    margin-bottom: 1rem;
}

/* ===== Navbar ===== */
.navbar {
    background: #1a1a2e;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo {
    color: #fff;
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.nav-links a {
    color: #ccc;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    color: #e94560;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
}

.btn-primary {
    background: #e94560;
    color: #fff;
}

.btn-primary:hover {
    background: #c73652;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(233, 69, 96, 0.3);
}

.btn-secondary {
    background: #1a1a2e;
    color: #fff;
}

.btn-secondary:hover {
    background: #2d2d4e;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: #e94560;
    border: 2px solid #e94560;
}

.btn-outline:hover {
    background: #e94560;
    color: #fff;
}

/* ===== Hero Section ===== */
.hero {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(135deg, #f8f9fc 0%, #e9ecef 100%);
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Features / Feature Grid ===== */
.features {
    padding: 60px 0;
}

.features h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    text-align: center;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.feature-card .icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.2rem;
}

.feature-card .btn-outline {
    margin-top: 1rem;
}

/* ===== Calculator Page ===== */
.calculator-page {
    padding: 60px 0;
}

.calculator-page h1 {
    text-align: center;
}

.calculator-page > .container > p {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 2rem;
}

.calculator-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 2rem;
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

/* ===== Form ===== */
.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.3rem;
    color: #1a1a2e;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: #e94560;
}

.calculator-input .btn {
    width: 100%;
    margin-top: 0.5rem;
}

/* ===== Output ===== */
.calculator-output {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

#compoundResult,
#tradingResult,
#mmResult,
#plResult {
    background: #f8f9fc;
    padding: 1.5rem;
    border-radius: 10px;
}

#compoundResult p,
#tradingResult p,
#mmResult p,
#plResult p {
    margin-bottom: 0.5rem;
    font-size: 1.05rem;
}

#compoundResult strong,
#tradingResult strong,
#mmResult strong,
#plResult strong {
    color: #1a1a2e;
}

.chart-container {
    background: #fff;
    border-radius: 10px;
    padding: 1rem;
    border: 1px solid #e9ecef;
}

.chart-container canvas {
    max-height: 250px;
    width: 100% !important;
}

.download-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.download-buttons .btn {
    flex: 1;
    min-width: 140px;
    text-align: center;
}

/* ===== Calculator Explanation ===== */
.calculator-explanation {
    margin-top: 3rem;
    padding: 2rem;
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.calculator-explanation h2 {
    color: #e94560;
    font-size: 1.8rem;
}

.calculator-explanation p {
    margin-bottom: 1rem;
}

/* ===== SEO Content ===== */
.seo-content {
    padding: 60px 0;
    background: #fff;
}

.seo-content h2 {
    color: #e94560;
}

.seo-content h3 {
    margin-top: 1.5rem;
    color: #1a1a2e;
}

/* ===== FAQ ===== */
.faq {
    padding: 60px 0;
}

.faq h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.faq-item {
    background: #fff;
    padding: 1.5rem 2rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.faq-item h4 {
    font-size: 1.1rem;
    color: #1a1a2e;
    margin-bottom: 0.3rem;
}

.faq-item p {
    margin-bottom: 0;
}

/* ===== Footer ===== */
footer {
    background: #1a1a2e;
    color: #ccc;
    text-align: center;
    padding: 2rem 0;
    margin-top: 2rem;
}

footer p {
    margin-bottom: 0;
    color: #888;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .calculator-wrapper {
        grid-template-columns: 1fr;
    }
    
    .navbar .container {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .nav-links {
        justify-content: center;
        gap: 1rem;
    }
    
    .nav-links a {
        font-size: 0.9rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
    }
    
    .download-buttons .btn {
        min-width: auto;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}