/* LIC Calculator - Main Stylesheet */

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

:root {
    --primary-color: #0066cc;
    --primary-dark: #0052a3;
    --secondary-color: #f0f4f8;
    --success-color: #28a745;
    --error-color: #dc3545;
    --warning-color: #ffc107;
    --text-color: #333;
    --text-light: #666;
    --border-color: #ddd;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-color);
    background-color: #f5f7fa;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

@media (max-width: 1200px) {
    .container {
        max-width: 100%;
        padding: 0 15px;
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 100%;
        padding: 0 12px;
    }
}

@media (max-width: 480px) {
    .container {
        max-width: 100%;
        padding: 0 8px;
    }
}

/* Header Styles */
.header {
    background: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

@media (max-width: 768px) {
    .header-content {
        padding: 12px 0;
        flex-wrap: wrap;
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .header-content {
        padding: 8px 0;
        gap: 8px;
    }
}

.logo-section h1 {
    font-size: 28px;
    color: var(--primary-color);
    margin-bottom: 5px;
}

@media (max-width: 768px) {
    .logo-section h1 {
        font-size: 20px;
        margin-bottom: 2px;
    }
}

@media (max-width: 480px) {
    .logo-section h1 {
        font-size: 16px;
        margin-bottom: 0px;
    }
}

.logo-section .tagline {
    font-size: 12px;
    color: var(--text-light);
}

@media (max-width: 768px) {
    .logo-section .tagline {
        font-size: 10px;
        display: none;
    }
}

@media (max-width: 480px) {
    .logo-section .tagline {
        display: none;
    }
}

.nav {
    display: flex;
    gap: 30px;
    align-items: center;
}

@media (max-width: 768px) {
    .nav {
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .nav {
        gap: 10px;
        width: 100%;
        justify-content: center;
    }
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 4px;
    transition: all 0.3s ease;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 14px;
}

@media (max-width: 768px) {
    .nav-link {
        padding: 6px 10px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .nav-link {
        padding: 5px 8px;
        font-size: 12px;
    }
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background-color: var(--secondary-color);
}

.dropdown {
    position: relative;
}

.dropdown-btn {
    cursor: pointer;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: white;
    min-width: 250px;
    box-shadow: var(--shadow-lg);
    z-index: 1;
    border-radius: 8px;
    top: 100%;
    left: 0;
    margin-top: 10px;
}

@media (max-width: 480px) {
    .dropdown-content {
        min-width: 200px;
        left: -50px;
    }
}

.dropdown:hover .dropdown-content {
    display: block;
}

.dropdown-content a {
    color: var(--text-color);
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    transition: all 0.3s ease;
    border-radius: 0;
    font-size: 14px;
}

@media (max-width: 768px) {
    .dropdown-content a {
        padding: 10px 12px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .dropdown-content a {
        padding: 8px 10px;
        font-size: 12px;
    }
}

.dropdown-content a:first-child {
    border-radius: 8px 8px 0 0;
}

.dropdown-content a:last-child {
    border-radius: 0 0 8px 8px;
}

.dropdown-content a:hover {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    padding-left: 20px;
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 200px);
    padding: 40px 0;
    width: 100%;
}

@media (max-width: 768px) {
    .main-content {
        padding: 20px 0;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 15px 0;
    }
}

.page {
    display: none;
    width: 100%;
}

.page.active {
    display: block;
    animation: fadeIn 0.3s ease;
    width: 100%;
}

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

/* Hero Section */
.hero-section {
    text-align: center;
    margin-bottom: 60px;
}

.hero-section h2 {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.hero-section p {
    font-size: 18px;
    color: var(--text-light);
}

/* Calculator Grid */
.calculator-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.calculator-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    cursor: pointer;
}

.calculator-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.calculator-card .card-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

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

.calculator-card p {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 20px;
    min-height: 40px;
}

/* Calculator Header */
.calculator-header {
    background: white;
    padding: 40px;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    text-align: center;
}

.calculator-header .header-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.calculator-header h1 {
    font-size: 36px;
    color: var(--text-color);
    margin-bottom: 10px;
}

.calculator-header .plan-code {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 15px;
}

.calculator-header .description {
    color: var(--text-light);
    font-size: 16px;
    max-width: 600px;
    margin: 0 auto;
}

/* Calculator Layout - Mobile First */
.calculator-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
    margin-bottom: 30px;
    width: 100%;
}

@media (min-width: 1201px) {
    .calculator-layout {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
}

@media (min-width: 1025px) and (max-width: 1200px) {
    .calculator-layout {
        grid-template-columns: 1fr;
        gap: 25px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .calculator-layout {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

@media (min-width: 601px) and (max-width: 768px) {
    .calculator-layout {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 10px;
    }
}

@media (min-width: 481px) and (max-width: 600px) {
    .calculator-layout {
        grid-template-columns: 1fr;
        gap: 15px;
        padding: 0 5px;
    }
}

@media (max-width: 480px) {
    .calculator-layout {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 0 5px;
    }
}

/* Card Styles */
.card {
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

@media (max-width: 480px) {
    .card {
        border-radius: 8px;
    }
}

.card-header {
    background: var(--secondary-color);
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.card-header h2 {
    font-size: 20px;
    color: var(--text-color);
    margin: 0;
}

@media (max-width: 768px) {
    .card-header {
        padding: 15px;
    }
    
    .card-header h2 {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .card-header {
        padding: 12px;
    }
    
    .card-header h2 {
        font-size: 16px;
    }
}

/* Form Styles */
.form-section {
    padding: 30px;
    width: 100%;
}

@media (max-width: 768px) {
    .form-section {
        padding: 20px;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .form-section {
        padding: 15px;
        width: 100%;
    }
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-color);
}

.form-input,
.form-select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: 'Poppins', sans-serif;
    font-size: 14px;
    transition: all 0.3s ease;
}

@media (max-width: 480px) {
    .form-input,
    .form-select {
        padding: 10px;
        font-size: 13px;
    }
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: var(--text-light);
    font-size: 12px;
}

.form-radio-group {
    display: flex;
    gap: 20px;
}

.form-radio-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 500;
}

.form-radio-label input {
    margin-right: 8px;
    cursor: pointer;
}

.form-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-top: 30px;
}

@media (max-width: 768px) {
    .form-buttons {
        gap: 12px;
        margin-top: 20px;
    }
}

@media (max-width: 480px) {
    .form-buttons {
        grid-template-columns: 1fr;
        gap: 10px;
        margin-top: 15px;
    }
}

/* Button Styles */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--border-color);
}

.btn-block {
    width: 100%;
}

/* Results Section */
.results-section {
    padding: 30px;
    width: 100%;
}

@media (max-width: 768px) {
    .results-section {
        padding: 20px;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .results-section {
        padding: 15px;
        width: 100%;
    }
}

.results-container {
    animation: fadeIn 0.3s ease;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

@media (max-width: 768px) {
    .results-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .results-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
}

.result-item {
    background: var(--secondary-color);
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

@media (max-width: 768px) {
    .result-item {
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .result-item {
        padding: 12px;
        border-left: 3px solid var(--primary-color);
    }
}

.result-item.highlight {
    background: linear-gradient(135deg, #e8f4f8 0%, #d0e8f2 100%);
    border-left-color: var(--success-color);
}

.result-label {
    font-size: 12px;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.result-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .result-value {
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .result-value {
        font-size: 18px;
    }
}

.result-item.highlight .result-value {
    color: var(--success-color);
}

.empty-state {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    color: var(--text-light);
    text-align: center;
}

/* Info Section */
.info-section {
    margin-top: 30px;
}

.info-section .card {
    padding: 30px;
}

.info-content h3 {
    font-size: 18px;
    color: var(--text-color);
    margin-top: 20px;
    margin-bottom: 15px;
}

.info-content h3:first-child {
    margin-top: 0;
}

.info-content ul,
.info-content ol {
    margin-left: 20px;
    color: var(--text-light);
    line-height: 1.8;
}

.info-content li {
    margin-bottom: 10px;
}

/* Message Box */
.message-box {
    padding: 15px;
    border-radius: 6px;
    margin-bottom: 20px;
}

.alert {
    padding: 15px;
    border-radius: 6px;
    margin-bottom: 20px;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-error ul {
    margin: 10px 0 0 20px;
}

.alert-error li {
    margin-bottom: 5px;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

/* Back Link */
.back-link {
    display: inline-block;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.back-link:hover {
    color: var(--primary-dark);
    transform: translateX(-5px);
}

/* Footer */
.footer {
    background: var(--text-color);
    color: white;
    padding: 40px 0;
    text-align: center;
    margin-top: 60px;
}

.footer p {
    margin-bottom: 10px;
}

.footer-note {
    font-size: 12px;
    color: #ccc;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .calculator-layout {
        grid-template-columns: 1fr;
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 20px;
    }

    .nav {
        flex-direction: column;
        gap: 10px;
        width: 100%;
    }

    .hero-section h2 {
        font-size: 32px;
    }

    .calculator-header {
        padding: 20px;
    }

    .calculator-header h1 {
        font-size: 24px;
    }

    .calculator-header .header-icon {
        font-size: 48px;
    }

    .calculator-layout {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 10px;
    }

    .form-buttons {
        grid-template-columns: 1fr;
    }

    .results-grid {
        grid-template-columns: 1fr;
    }

    .calculator-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .calculator-layout {
        grid-template-columns: 1fr;
        gap: 15px;
        padding: 0 5px;
    }
    
    .form-section,
    .results-section {
        padding: 15px;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
}

/* Utility Classes */
.fade-in {
    animation: fadeIn 0.3s ease;
}