:root {
    --primary-color: #4361ee;
    --secondary-color: #3f37c9;
    --accent-color: #4895ef;
    --success-color: #4cc9f0;
    --dark-bg: #0f172a;
    --card-bg: rgba(255, 255, 255, 0.95);
    --glass-border: rgba(255, 255, 255, 0.2);
    --text-dark: #1e293b;
    --text-light: #f8fafc;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: #f0f4f8;
    background-image:
        radial-gradient(at 0% 0%, hsla(253, 16%, 7%, 1) 0, transparent 50%),
        radial-gradient(at 50% 0%, hsla(225, 39%, 30%, 1) 0, transparent 50%),
        radial-gradient(at 100% 0%, hsla(339, 49%, 30%, 1) 0, transparent 50%);
    background-attachment: fixed;
    color: var(--text-dark);
    min-height: 100vh;
}

/* Urdu Font & RTL */
@import url('https://fonts.googleapis.com/css2?family=Noto+Nastaliq+Urdu:wght@400;700&display=swap');

.lang-ur {
    font-family: 'Noto Nastaliq Urdu', serif;
    direction: rtl;
    text-align: right;
}

.lang-ur h1,
.lang-ur h2,
.lang-ur h3,
.lang-ur h4,
.lang-ur h5,
.lang-ur h6 {
    font-family: 'Noto Nastaliq Urdu', serif;
    line-height: 1.6;
}

.lang-ur .navbar-nav {
    padding-right: 0;
}

.lang-ur .me-2 {
    margin-left: 0.5rem !important;
    margin-right: 0 !important;
}

.lang-ur .ms-2 {
    margin-right: 0.5rem !important;
    margin-left: 0 !important;
}

.lang-ur .border-end-0 {
    border-left: 0 !important;
    border-right: 1px solid #e2e8f0 !important;
    border-radius: 0 12px 12px 0 !important;
}

.lang-ur .border-start-0 {
    border-right: 0 !important;
    border-left: 1px solid #e2e8f0 !important;
    border-radius: 12px 0 0 12px !important;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    letter-spacing: -0.025em;
}

.hero-section {
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

/* Glassmorphism Card */
.bill-card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    padding: 40px;
    transition: transform 0.3s ease;
}

.bill-card:hover {
    transform: translateY(-5px);
}

.form-control {
    border-radius: 12px;
    padding: 16px;
    border: 2px solid #e2e8f0;
    background: #f8fafc;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.15);
    background: #fff;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 12px;
    padding: 16px 32px;
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    box-shadow: 0 10px 15px -3px rgba(67, 97, 238, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgba(67, 97, 238, 0.4);
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
}

/* Content Section */
.content-section {
    background: #fff;
    border-radius: 30px 30px 0 0;
    padding: 60px 0;
    margin-top: -40px;
    position: relative;
    z-index: 10;
    box-shadow: 0 -20px 40px rgba(0, 0, 0, 0.05);
}

.article-content h2 {
    color: var(--secondary-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-size: 2rem;
}

.article-content h3 {
    color: var(--accent-color);
    margin-top: 1.5rem;
}

.article-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #475569;
    margin-bottom: 1.5rem;
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: rgba(67, 97, 238, 0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 24px;
    margin-bottom: 20px;
}

.info-box {
    background: #f8fafc;
    border-left: 5px solid var(--primary-color);
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
}

/* Footer */
footer {
    background: var(--dark-bg);
    color: var(--text-light);
    padding: 60px 0 30px;
}

footer .text-muted {
    color: #cbd5e1 !important;
}

.footer-link {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-link:hover {
    color: #fff;
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-section {
        padding: 40px 0 80px;
    }

    .bill-card {
        padding: 25px;
    }

    .article-content h2 {
        font-size: 1.75rem;
    }
}

/* Saved Numbers Section */
.saved-numbers-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 400px;
    overflow-y: auto;
    padding-right: 8px;
}

.saved-numbers-list::-webkit-scrollbar {
    width: 6px;
}

.saved-numbers-list::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 10px;
}

.saved-numbers-list::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 10px;
}

.saved-number-item {
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 14px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: all 0.3s ease;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.saved-number-item:hover {
    background: #fff;
    border-color: var(--primary-color);
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(67, 97, 238, 0.15);
}

.saved-number-content {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.saved-number-badge {
    width: 40px;
    height: 40px;
    background: rgba(67, 97, 238, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 18px;
    flex-shrink: 0;
}

.saved-number-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.saved-number-value {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 1rem;
    letter-spacing: 0.5px;
}

.saved-number-type {
    font-size: 0.75rem;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.saved-number-delete {
    background: transparent;
    border: none;
    color: #94a3b8;
    font-size: 18px;
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.saved-number-delete:hover {
    background: #fee2e2;
    color: #dc2626;
}

#savedNumbersSection h6 {
    color: var(--text-dark);
    font-weight: 600;
}

#savedCount {
    font-size: 0.875rem;
    padding: 4px 10px;
}

/* Save checkbox styling */
#saveNumberCheck:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.form-check-label.small {
    font-size: 0.9rem;
    cursor: pointer;
    user-select: none;
}

.form-check-input {
    cursor: pointer;
}

/* Responsive adjustments for saved numbers */
@media (max-width: 768px) {
    .saved-numbers-list {
        max-height: 300px;
    }

    .saved-number-item {
        padding: 12px 14px;
    }

    .saved-number-badge {
        width: 36px;
        height: 36px;
        font-size: 16px;
    }

    .saved-number-value {
        font-size: 0.9rem;
    }
}

/* RTL Support for Saved Numbers */
.lang-ur .saved-number-item {
    flex-direction: row-reverse;
}

.lang-ur .saved-number-content {
    flex-direction: row-reverse;
}

.lang-ur .saved-number-item:hover {
    transform: translateX(-5px);
}

.lang-ur .saved-numbers-list {
    padding-left: 8px;
    padding-right: 0;
}