/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1f2937;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header Styles */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.5rem;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.logo-text h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #1f2937;
    margin: 0;
}

.logo-text p {
    font-size: 0.875rem;
    color: #6b7280;
    margin: 0;
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.form-container {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    padding: 2.5rem;
    width: 100%;
    max-width: 500px;
    position: relative;
    overflow: hidden;
}

.form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #2563eb, #1d4ed8, #1e40af);
}

.form-header {
    text-align: center;
    margin-bottom: 2rem;
}

.form-header h2 {
    font-size: 1.875rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.form-header p {
    color: #6b7280;
    font-size: 1rem;
}

/* Message Container */
#message-container {
    margin-bottom: 1.5rem;
}

.message {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-weight: 500;
}

.message.success {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.message.error {
    background: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
}

/* Form Styles */
.signup-form {
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.required {
    color: #dc2626;
}

.optional {
    color: #6b7280;
    font-weight: 400;
}

.form-input,
.form-select {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input.error,
.form-select.error {
    border-color: #dc2626;
}

/* Input with Prefix */
.input-with-prefix {
    position: relative;
    display: flex;
    align-items: center;
}

.input-prefix {
    position: absolute;
    left: 1rem;
    color: #6b7280;
    font-weight: 500;
    z-index: 1;
}

.input-with-prefix .form-input {
    padding-left: 2rem;
}

/* Phone Input Group */
.phone-input-group {
    display: flex;
    gap: 0.75rem;
    align-items: stretch;
}

.country-code-wrapper {
    position: relative;
    min-width: 140px;
    max-width: 160px;
}

.country-code-select {
    width: 100%;
    padding: 0.875rem 2.5rem 0.875rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 500;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    cursor: pointer;
    transition: all 0.3s ease;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: none;
    color: #374151;
}

.country-code-select:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    transform: translateY(-1px);
}

.country-code-select:hover {
    border-color: #d1d5db;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.country-code-icon {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: #6b7280;
    pointer-events: none;
    transition: all 0.3s ease;
}

.country-code-select:focus + .country-code-icon {
    color: #2563eb;
    transform: translateY(-50%) rotate(180deg);
}

.country-code-select:hover + .country-code-icon {
    color: #374151;
}

.phone-input {
    flex: 1;
    min-width: 0;
}

/* Responsive design for phone input */
@media (max-width: 480px) {
    .phone-input-group {
        flex-direction: column;
        gap: 0.75rem;
    }

    .country-code-wrapper {
        width: 100%;
        max-width: none;
    }

    .country-code-select {
        width: 100%;
    }

    .phone-input {
        width: 100%;
    }
}

/* Checkbox Styles */
.checkbox-group {
    margin-bottom: 2rem;
}

.checkbox-wrapper {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.form-checkbox {
    width: 1.25rem;
    height: 1.25rem;
    margin-top: 0.125rem;
    accent-color: #2563eb;
}

.checkbox-label {
    font-size: 0.875rem;
    color: #374151;
    line-height: 1.5;
    cursor: pointer;
}

.link {
    color: #2563eb;
    text-decoration: none;
    font-weight: 500;
}

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

/* Error Messages */
.error-message {
    color: #dc2626;
    font-size: 0.75rem;
    margin-top: 0.25rem;
    min-height: 1rem;
}

/* Submit Button */
.submit-btn {
    width: 100%;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.submit-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

.submit-btn:active {
    transform: translateY(0);
}

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

/* Loading Spinner */
.loading-spinner {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.loading-spinner.active {
    display: flex;
}

.spinner {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Benefits Section */
.benefits-section {
    border-top: 1px solid #e5e7eb;
    padding-top: 2rem;
    margin-top: 2rem;
}

.benefits-section h3 {
    text-align: center;
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1.5rem;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.benefit-item {
    text-align: center;
    padding: 1.5rem;
    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}

.benefit-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.benefit-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.benefit-item h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.benefit-item p {
    font-size: 0.875rem;
    color: #6b7280;
    line-height: 1.5;
}

/* Footer */
.footer {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1rem 0;
    text-align: center;
}

.footer p {
    color: #6b7280;
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .form-container {
        padding: 2rem 1.5rem;
        margin: 1rem;
        border-radius: 16px;
    }

    .form-header h2 {
        font-size: 1.5rem;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .benefit-item {
        padding: 1rem;
    }

    .logo {
        gap: 0.75rem;
    }

    .logo-icon {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }

    .logo-text h1 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 1rem 0.5rem;
    }

    .form-container {
        padding: 1.5rem 1rem;
        margin: 0.5rem;
    }

    .form-header h2 {
        font-size: 1.25rem;
    }

    .submit-btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.875rem;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

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

.slide-up {
    animation: slideUp 0.3s ease-out;
}

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