/* Global Styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

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

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    min-height: 100vh;
    color: #333;
}

/* Dashboard Container */
.dashboard-container {
    display: flex;
    width: 100%;
    height: 100vh; /* Ensures full height layout */
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-right: 1px solid rgba(255, 255, 255, 0.2);
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.sidebar-header {
    padding: 30px 20px;
    text-align: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.sidebar-header h2 {
    margin: 0;
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.menu {
    list-style: none;
    padding: 0;
    margin: 0;
    flex-grow: 1;
}

.menu li {
    margin: 0;
    padding: 0;
}

.menu a {
    display: flex;
    align-items: center;
    padding: 16px 24px;
    text-decoration: none;
    color: #4a5568;
    font-size: 15px;
    font-weight: 500;
    border-radius: 12px;
    margin: 4px 12px;
    transition: all 0.3s ease;
    position: relative;
}

.menu a:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transform: translateX(5px);
}

.menu a.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.menu a::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 20px;
    background: transparent;
    border-radius: 2px;
    transition: background 0.3s ease;
}

.menu a.active::before {
    background: white;
}

.menu a .icon {
    margin-right: 12px;
    font-size: 18px;
    display: inline-block;
    width: 20px;
    text-align: center;
}

/* Main Content */
.main-content {
    margin-left: 280px;
    padding: 30px;
    flex-grow: 1;
    background: transparent;
    overflow-y: auto;
    min-height: 100vh;
    box-sizing: border-box;
    animation: fadeIn 0.8s ease-out;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .sidebar {
        position: relative;
        width: 100%;
        height: auto;
        box-shadow: none;
    }

    .main-content {
        margin-left: 0;
        padding: 20px;
    }
}


/* Payment Form Styling */
h1 {
    text-align: center;
    color: white;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 30px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.payment-form {
    max-width: 900px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

.payment-form .form-group {
    position: relative;
}

.payment-form .form-group input,
.payment-form .form-group select {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 500;
    background: white;
    transition: all 0.3s ease;
    outline: none;
}

.payment-form .form-group input:focus,
.payment-form .form-group select:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}

.payment-form .form-group select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 12px center;
    background-repeat: no-repeat;
    background-size: 16px;
    appearance: none;
    padding-right: 45px;
}

.payment-form .form-group input::placeholder {
    color: #a0aec0;
    font-weight: 400;
}

.payment-form .form-group.full-width {
    grid-column: span 2;
}

.payment-form button {
    grid-column: span 2;
    padding: 18px 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    color: white;
    font-size: 16px;
    font-weight: 600;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 10px;
}

.payment-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

.payment-form button:active {
    transform: translateY(0);
}

/* Card Type Display */
#cardType {
    margin-left: 10px;
    display: inline-flex;
    align-items: center;
}

#cardType img {
    height: 24px;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Loading Animation */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s ease-in-out infinite;
}

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

/* Error Messages */
#errorMessages {
    grid-column: span 2;
    padding: 15px;
    background: #fee2e2;
    border: 1px solid #fecaca;
    border-radius: 12px;
    color: #dc2626;
    font-weight: 500;
    margin-bottom: 10px;
}

/* Success Messages */
.success-message {
    background: #d1fae5;
    border: 1px solid #a7f3d0;
    color: #065f46;
}

/* Form Animations */
.payment-form .form-group {
    animation: slideUp 0.6s ease-out;
}

.payment-form .form-group:nth-child(even) {
    animation-delay: 0.1s;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Floating Labels */
.form-group {
    position: relative;
}

.form-group input.has-value {
    padding-top: 20px;
    padding-bottom: 12px;
}

/* Glassmorphism effect */
.payment-form::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, 
        rgba(255,255,255,0.1) 0%, 
        rgba(255,255,255,0.05) 50%, 
        rgba(255,255,255,0.1) 100%);
    border-radius: 22px;
    z-index: -1;
}

/* Hover effects for sidebar */
.sidebar {
    transition: all 0.3s ease;
}

.sidebar:hover {
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

/* Custom scrollbar */
.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(102, 126, 234, 0.3);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(102, 126, 234, 0.5);
}

/* Responsive Design */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }

    .main-content {
        margin-left: 0;
        padding: 20px;
    }

    .payment-form {
        grid-template-columns: 1fr;
        padding: 30px 20px;
        margin: 0 10px;
    }

    .payment-form .form-group.full-width,
    .payment-form button {
        grid-column: span 1;
    }

    h1 {
        font-size: 24px;
        margin-bottom: 20px;
    }

    .menu a {
        margin: 2px 8px;
        padding: 12px 16px;
    }
}

@media (max-width: 480px) {
    .payment-form {
        padding: 20px 15px;
        margin: 0 5px;
    }
    
    .payment-form .form-group input,
    .payment-form .form-group select {
        padding: 14px 16px;
    }
}