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

/* Dana Font Face Declarations */
@font-face {
    font-family: 'Dana';
    src: url('../fonts/dana-regular.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Dana';
    src: url('../fonts/dana-medium.woff2') format('woff2');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Dana';
    src: url('../fonts/dana-extrabold.woff2') format('woff2');
    font-weight: 800;
    font-style: normal;
    font-display: swap;
}

:root {
    /* Colors */
    --primary-blue: #2563eb;
    --primary-blue-dark: #1d4ed8;
    --primary-blue-light: #3b82f6;
    --success-green: #10b981;
    --error-red: #ef4444;
    --warning-orange: #f59e0b;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Form specific colors matching design */
    --input-border: #e0e4e7;
    --input-placeholder: #9ca3af;
    --label-color: #374151;
    --text-color: #1f2937;
    
    /* Button states */
    --button-active: #1C3580;
    --button-disabled: #83898C;
    
    /* Typography */
    --font-family: 'Dana', 'Tahoma', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-3xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

html {
    font-size: 16px;
    line-height: 1.5;
}

body {
    font-family: var(--font-family);
    font-weight: var(--font-weight-normal);
    color: var(--text-color);
    background: #ffffff;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    direction: rtl;
    margin: 0;
    overflow-x: hidden;
}

/* Container and Layout */
.container {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    padding: var(--spacing-4);
}

.form-wrapper {
    background: var(--white);
    padding: var(--spacing-8);
    position: relative;
    overflow: hidden;
}

.form-wrapper::before {
    display: none;
}

/* Header Styles */
.form-header {
    margin-bottom: var(--spacing-8);
    position: relative;
}

.back-button {
    position: absolute;
    top: var(--spacing-5);
    right: 0;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    font-family: 'Dana', sans-serif;
    font-size: 14px;
    font-weight: 400;
    color: #5E6366;
    text-decoration: none;
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: var(--spacing-2);
    border-radius: var(--radius-md);
    height: 60px;
}

.back-button:hover {
    color: #2B2F32;
    background: rgba(0, 0, 0, 0.05);
}

.back-button:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

.back-text {
    order: 2;
}

.back-button svg {
    order: 1;
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.logo-container {
    margin-bottom: 58px;
    text-align: left;
}

.logo {
    height: 60px;
    width: auto;
    filter: drop-shadow(var(--shadow-sm));
}

.form-title {
    font-family: 'Dana', sans-serif;
    font-size: 24px;
    font-weight: 800;
    color: #000000;
    margin-bottom: var(--spacing-3);
    line-height: 100%;
    letter-spacing: -0.04em;
    text-align: center;
}

.form-subtitle {
    font-family: 'Dana', sans-serif;
    font-size: 16px;
    font-weight: 500;
    color: #000000;
    line-height: 100%;
    letter-spacing: -0.06em;
    text-align: right;
}

/* Form Styles */
.registration-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 13px;
}

.form-label {
    font-family: 'Dana', sans-serif;
    font-size: 16px;
    font-weight: 400;
    color: #000000;
    position: relative;
    margin-bottom: 0;
    line-height: 100%;
    letter-spacing: -0.06em;
    text-align: right;
}

.form-label[for="fullname"]::after,
.form-label[for="mobile"]::after {
    content: ' *';
    color: var(--error-red);
    font-weight: var(--font-weight-normal);
}

.form-description {
    font-family: 'Dana', sans-serif;
    font-size: 12px;
    font-weight: 400;
    color: #5E6366;
    margin-bottom: 0;
    line-height: 100%;
    letter-spacing: -0.06em;
    text-align: right;
}

/* Input Styles */
.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-3);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-lg);
    font-family: 'Dana', sans-serif;
    font-size: 16px;
    font-weight: 400;
    color: #000000;
    background-color: var(--white);
    transition: all var(--transition-normal);
    outline: none;
    direction: rtl;
    line-height: 100%;
    letter-spacing: -0.06em;
    min-height: 48px;
    box-sizing: border-box;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--input-placeholder);
    font-weight: 400;
    font-family: 'Dana', sans-serif;
    font-size: 16px;
    line-height: 100%;
    letter-spacing: -0.06em;
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    background-color: var(--white);
}

.form-input:hover:not(:focus),
.form-textarea:hover:not(:focus) {
    border-color: var(--gray-300);
}

/* Input States */
.form-input.error,
.form-textarea.error {
    border-color: var(--error-red);
    background-color: rgba(254, 242, 242, 0.5);
}

.form-input.error:focus,
.form-textarea.error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* Textarea Specific */
.form-textarea {
    resize: vertical;
    min-height: 100px;
    line-height: 1.5;
}

/* Error Messages */
.error-message {
    font-size: var(--font-size-sm);
    color: var(--error-red);
    min-height: 0;
    line-height: 1.25rem;
    display: block;
    transition: all var(--transition-fast);
    opacity: 0;
    transform: translateY(-2px);
}

.error-message.show {
    opacity: 1;
    transform: translateY(0);
}

/* Pricing Section */
.pricing-section {
    background: transparent;
    padding: 0;
    margin: 0;
}

.pricing-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
    text-align: right;
    padding: 0;
}

.pricing-text {
    font-family: 'Dana', sans-serif;
    font-size: 14px;
    color: #2B2F32;
    margin: 0;
    font-weight: 400;
    line-height: 100%;
    letter-spacing: -0.06em;
    text-align: right;
}

.discount-text {
    font-family: 'Dana', sans-serif;
    font-size: 14px;
    color: #2B2F32;
    margin: 0;
    font-weight: 400;
    line-height: 100%;
    letter-spacing: -0.06em;
    text-align: right;
    white-space: nowrap;
}

.discount-percent {
    font-weight: 400;
}

.price-amount {
    font-weight: 600;
}

/* Submit Button */
.submit-button {
    position: relative;
    width: 100%;
    background: var(--button-disabled);
    color: white;
    border: none;
    padding: var(--spacing-4) var(--spacing-6);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    font-family: inherit;
    cursor: not-allowed;
    transition: all var(--transition-normal);
    outline: none;
    overflow: hidden;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.submit-button:not(.form-incomplete) {
    background: var(--button-active);
    cursor: pointer;
}

.submit-button:hover:not(.form-incomplete) {
    background: #152d73;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.submit-button:focus:not(.form-incomplete) {
    box-shadow: 0 0 0 3px rgba(28, 53, 128, 0.3);
}

.submit-button.form-incomplete {
    background: var(--button-disabled);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.button-text {
    transition: opacity var(--transition-fast);
}

.button-loader {
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.submit-button.loading .button-text {
    opacity: 0;
}

.submit-button.loading .button-loader {
    opacity: 1;
}

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

/* Notification */
.notification {
    position: fixed;
    top: var(--spacing-4);
    right: var(--spacing-4);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-4);
    max-width: 400px;
    z-index: 1000;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    display: none;
}

.notification.show {
    transform: translateX(0);
}

.notification.error {
    border-left-color: var(--error-red);
}

.notification.success {
    border-left-color: var(--success-green);
}

.notification.warning {
    border-left-color: var(--warning-orange);
}

.notification-content {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-3);
}

.notification-message {
    font-size: var(--font-size-sm);
    color: var(--gray-700);
    line-height: 1.4;
    flex: 1;
}

.notification-close {
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    color: var(--gray-400);
    cursor: pointer;
    padding: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.notification-close:hover {
    background: var(--gray-100);
    color: var(--gray-600);
}

/* Responsive Design */
@media (max-width: 576px) {
    body {
        padding: var(--spacing-2);
        align-items: flex-start;
        padding-top: var(--spacing-4);
    }
    
    .container {
        padding: var(--spacing-2);
    }
    
    .form-wrapper {
        padding: var(--spacing-4);
    }
    
    .back-button {
        font-size: 13px;
        padding: var(--spacing-1);
        height: 50px;
        top: var(--spacing-5);
    }
    
    .back-button svg {
        width: 14px;
        height: 14px;
    }
    
    .logo-container {
        margin-bottom: 32px;
    }
    
    .form-title {
        font-size: var(--font-size-xl);
    }
    
    .form-subtitle {
        font-size: var(--font-size-sm);
    }
    
    .form-input,
    .form-textarea {
        padding: var(--spacing-3);
        font-size: var(--font-size-base);
    }
    
    .form-group {
        gap: 8px;
    }
    
    .submit-button {
        padding: var(--spacing-3) var(--spacing-5);
        font-size: var(--font-size-base);
        min-height: 48px;
    }
    
    .pricing-section {
        padding: 0;
        margin-bottom: 16px;
    }
    
    .pricing-text,
    .discount-text {
        font-size: 13px;
    }
    
    .discounted-price .price-amount.discount {
        font-size: var(--font-size-lg);
    }
    
    .notification {
        top: var(--spacing-2);
        right: var(--spacing-2);
        left: var(--spacing-2);
        max-width: none;
    }
}

@media (max-width: 480px) {
    .form-wrapper {
        padding: var(--spacing-3);
    }
    
    .logo {
        height: 50px;
    }
    
    .registration-form {
        gap: 12px;
    }
    
    .form-group {
        gap: 6px;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .form-input,
    .form-textarea {
        border-width: 3px;
    }
    
    .submit-button {
        border: 2px solid var(--primary-blue-dark);
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .submit-button::before {
        display: none;
    }
}

/* Print Styles */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .form-wrapper {
        box-shadow: none;
        border: 1px solid black;
    }
    
    .submit-button,
    .notification {
        display: none;
    }
}