/* ========== RESET & BASE ========== */
* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --primary: #0077b6;
    --primary-dark: #005f91;
    --primary-light: #e0f2fe;
    --text-dark: #111827;
    --text: #1f2937;
    --text-muted: #6b7280;
    --border: #e5e7eb;
    --bg: #f5f7fa;
    --white: #ffffff;
    --error: #dc2626;
    --warning: #f59e0b;
    --radius: 14px;
    --radius-sm: 8px;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

body {
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

.container {
    width: 92%;
    max-width: 1200px;
    margin: 0 auto;
}


/* ========== HEADER ========== */
.site-header {
    background: var(--primary);
    color: var(--white);
    padding: 22px 0;
}

.logo {
    font-size: 25px;
    font-weight: 700;
}

.tagline {
    margin: 6px 0 0;
    font-size: 14px;
    opacity: 0.9;
}

.main-nav {
    margin-top: 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.main-nav a {
    color: var(--white);
    text-decoration: none;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    transition: 0.2s;
}

.main-nav a:hover {
    background: rgba(255, 255, 255, 0.15);
}


/* ========== HERO ========== */
.hero {
    background: var(--white);
    margin-top: 30px;
    padding: 45px 30px;
    border-radius: var(--radius);
    text-align: center;
    border: 1px solid var(--border);
}

.hero h1 {
    margin: 0 0 12px;
    font-size: 34px;
    color: var(--text-dark);
}

.hero p {
    margin: 0;
    font-size: 17px;
    color: var(--text-muted);
}


/* ========== CALCULATOR GRID ========== */
.calculator-section {
    margin-top: 35px;
}

.calculator-section h2,
.info-section h2 {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.calculator-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.calculator-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 25px;
    transition: 0.2s ease;
    display: flex;
    flex-direction: column;
}

.calculator-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
    border-color: var(--primary);
}

.calculator-card h3 {
    margin: 0 0 10px;
    color: var(--primary);
    font-size: 20px;
}

.calculator-card p {
    flex: 1;
    min-height: 60px;
    margin: 0 0 20px;
    color: var(--text-muted);
    line-height: 1.5;
}

.calculator-card a {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    padding: 9px 15px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    transition: 0.2s;
}

.calculator-card a:hover {
    background: var(--primary-dark);
}


/* ========== INFO SECTION ========== */
.info-section {
    background: var(--white);
    margin-top: 35px;
    padding: 30px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.info-section p {
    color: var(--text-muted);
    line-height: 1.7;
}

.info-section h2 {
    margin-top: 20px;
}

.info-section h2:first-child {
    margin-top: 0;
}


/* ========== FORM INPUTS ========== */
.info-section form p {
    margin: 18px 0 6px;
    font-weight: 600;
    color: var(--text);
    font-size: 15px;
}

.info-section input[type="number"],
.info-section input[type="text"],
.info-section input[type="email"],
.info-section select {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-family: inherit;
    background: var(--white);
    color: var(--text);
    transition: 0.2s;
}

.info-section input:focus,
.info-section select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.info-section button {
    width: 100%;
    padding: 14px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s;
    font-family: inherit;
    margin-top: 14px;
}

.info-section button:hover {
    background: var(--primary-dark);
}

.info-section button:active {
    transform: scale(0.98);
}


/* ========== RESULT BOX ========== */
#emiResult,
#gstResult,
#sipResult,
#fdResult,
#salaryResult,
#taxResult {
    margin-top: 25px;
}

#emiResult h2,
#gstResult h2,
#sipResult h2,
#fdResult h2,
#salaryResult h2,
#taxResult h2 {
    font-size: 22px;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.emi-result-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 25px;
}

.emi-result-card {
    background: var(--primary-light);
    border: 1px solid var(--primary);
    border-radius: var(--radius-sm);
    padding: 18px;
    text-align: center;
}

.emi-result-card span {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.emi-result-card strong {
    display: block;
    font-size: 22px;
    color: var(--primary-dark);
    font-weight: 700;
}


/* ========== AMORTIZATION TABLE ========== */
.table-wrap {
    overflow-x: auto;
    margin-top: 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.amort-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    min-width: 500px;
}

.amort-table th {
    background: var(--primary);
    color: var(--white);
    padding: 12px;
    text-align: left;
    font-weight: 600;
}

.amort-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
}

.amort-table tr:nth-child(even) {
    background: #fafbfc;
}

.amort-table tr:hover {
    background: var(--primary-light);
}


/* ========== MESSAGES ========== */
.error-msg {
    background: #fef2f2;
    color: var(--error);
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--error);
    margin-top: 15px;
    font-weight: 500;
}

.note {
    background: #fffbeb;
    color: #92400e;
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--warning);
    margin-top: 20px;
    font-size: 14px;
    line-height: 1.6;
}


/* ========== BACK LINK ========== */
.back-link {
    display: inline-block;
    margin-top: 20px;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
}

.back-link:hover {
    text-decoration: underline;
}


/* ========== FOOTER ========== */
.site-footer {
    margin-top: 50px;
    padding: 25px 0;
    background: var(--primary);
    color: var(--white);
    text-align: center;
}

.site-footer p {
    margin: 0 0 10px;
    font-size: 14px;
}

.footer-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
}

.footer-nav a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.85;
    transition: 0.2s;
}

.footer-nav a:hover {
    opacity: 1;
    text-decoration: underline;
}


/* ========== PRINT STYLES ========== */
@media print {
    .site-header,
    .site-footer,
    .calculator-card a,
    .info-section button {
        display: none;
    }

    body {
        background: white;
    }

    .info-section,
    .hero {
        border: none;
        box-shadow: none;
    }
}


/* ========== MOBILE ========== */
@media (max-width: 900px) {
    .calculator-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .emi-result-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 600px) {
    .calculator-grid {
        grid-template-columns: 1fr;
    }

    .emi-result-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        padding: 30px 20px;
    }

    .hero h1 {
        font-size: 28px;
    }

    .logo {
        font-size: 21px;
    }

    .info-section {
        padding: 20px;
    }

    .emi-result-card strong {
        font-size: 20px;
    }

    .main-nav {
        justify-content: center;
    }
}
/* ========== BLOG STYLES ========== */

/* Blog post content */
.info-section h3 {
    font-size: 20px;
    color: var(--text-dark);
    margin-top: 28px;
    margin-bottom: 12px;
}

.info-section ul {
    margin: 12px 0 12px 24px;
    color: var(--text-muted);
    line-height: 1.8;
}

.info-section ul li {
    margin-bottom: 8px;
}

.info-section a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.info-section a:hover {
    text-decoration: underline;
}

.info-section em {
    color: var(--text-muted);
    font-size: 14px;
}

/* Blog post hero */
.hero h1 {
    line-height: 1.3;
}

/* Blog post em (date/reading time) */
.info-section > p:first-of-type em {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary-dark);
    padding: 6px 14px;
    border-radius: 20px;
    font-style: normal;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 20px;
}

/* Blog post tables */
.info-section .table-wrap {
    margin: 20px 0;
}

/* Blog post paragraphs */
.info-section > p {
    margin-bottom: 16px;
    color: var(--text);
    line-height: 1.8;
}

/* Blog post strong */
.info-section strong {
    color: var(--text-dark);
}