:root {
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --success-color: #10b981;
    --failure-color: #ef4444;
    --border-color: #e2e8f0;
    --input-focus-ring: rgba(37, 99, 235, 0.2);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-font-smoothing: antialiased;
}

.container {
    width: 100%;
    max-width: 440px;
    padding: 20px;
}

.card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    text-align: center;
}

.logo {
    width: 120px;
    height: auto;
    margin-bottom: 24px;
    border-radius: 8px;
    object-fit: contain;
}

h1 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.input-group {
    text-align: left;
    margin-bottom: 24px;
}

.input-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.currency-symbol {
    position: absolute;
    left: 16px;
    font-size: 18px;
    color: var(--text-primary);
    font-weight: 500;
    pointer-events: none;
}

input[type="text"],
input[type="tel"] {
    width: 100%;
    padding: 14px 16px;
    font-size: 15px;
    font-weight: 500;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    background-color: #f8fafc;
    color: var(--text-primary);
    transition: var(--transition);
    outline: none;
    margin-bottom: 8px;
}

input[type="text"]:focus,
input[type="tel"]:focus {
    border-color: var(--primary-color);
    background-color: #ffffff;
    box-shadow: 0 0 0 4px var(--input-focus-ring);
}

input[type="number"] {
    width: 100%;
    padding: 16px 16px 16px 40px;
    font-size: 20px;
    font-weight: 500;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    background-color: #f8fafc;
    color: var(--text-primary);
    transition: var(--transition);
    outline: none;
    -moz-appearance: textfield;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type="number"]:focus {
    border-color: var(--primary-color);
    background-color: #ffffff;
    box-shadow: 0 0 0 4px var(--input-focus-ring);
}

.btn {
    width: 100%;
    padding: 16px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(1px);
}

.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background-color: #f1f5f9;
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: #e2e8f0;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
    position: absolute;
}

.hidden {
    display: none !important;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.error-msg {
    margin-top: 16px;
    color: var(--failure-color);
    font-size: 13px;
    font-weight: 500;
    padding: 12px;
    background-color: #fef2f2;
    border-radius: 8px;
    border: 1px solid #fecaca;
    text-align: left;
}

/* Result Pages */
.result-card {
    padding: 48px 32px;
}

.icon-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.success-icon {
    background-color: #d1fae5;
    color: var(--success-color);
}

.failure-icon {
    background-color: #fee2e2;
    color: var(--failure-color);
}

.message {
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
    font-size: 15px;
}

.details-box {
    background-color: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 32px;
    text-align: left;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--text-secondary);
}

.font-medium {
    font-weight: 500;
    color: var(--text-primary);
}

/* Animations */
.slide-up {
    animation: slideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Policy Pages */
.policy-container {
    max-width: 800px;
}

.policy-card {
    text-align: left;
    padding: 40px;
    margin: 40px 0;
}

.policy-card h1 {
    font-size: 28px;
    margin-bottom: 8px;
    text-align: center;
}

.policy-card h2 {
    font-size: 20px;
    margin-bottom: 24px;
    text-align: center;
    color: var(--text-secondary);
}

.policy-card h3 {
    font-size: 18px;
    margin-top: 24px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.policy-card p, .policy-card ul {
    margin-bottom: 16px;
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-secondary);
}

.policy-card ul {
    padding-left: 20px;
}

.policy-card hr {
    border: 0;
    border-top: 1px solid var(--border-color);
    margin: 32px 0;
}

.footer-links {
    margin-top: 24px;
    text-align: center;
    font-size: 13px;
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

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

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