:root {
    /* Color Palette */
    --primary-blue: #2563eb;
    --primary-blue-light: #3b82f6;
    --primary-blue-dark: #1d4ed8;
    --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;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #06b6d4;
    
    /* Typography */
    --font-family: 'Tajawal', 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-size-4xl: 2.25rem;
    
    /* Spacing */
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-700);
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    direction: rtl;
}

/* Header Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--white);
    text-align: center;
    padding: 4rem 1rem 3rem;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    animation: fadeInUp 0.8s ease-out;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    font-weight: 400;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

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

/* Progress Steps */
.progress-container {
    background: var(--white);
    padding: 2rem 0;
    border-bottom: 1px solid var(--gray-200);
}

.progress-steps {
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 600px;
    margin: 0 auto;
    padding: 0 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    flex: 1;
    text-align: center;
    min-width: 80px;
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 20px;
    left: 60%;
    width: 80%;
    height: 2px;
    background: var(--gray-200);
    z-index: 1;
}

.step.active:not(:last-child)::after {
    background: var(--primary-blue);
}

.step-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gray-200);
    color: var(--gray-500);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
    font-size: var(--font-size-sm);
    font-weight: 600;
    position: relative;
    z-index: 2;
    transition: all 0.3s ease;
}

.step.active .step-circle {
    background: var(--primary-blue);
    color: var(--white);
}

.step.completed .step-circle {
    background: var(--success);
    color: var(--white);
}

.step-label {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    margin-top: 0.5rem;
}

.step.active .step-label {
    color: var(--primary-blue);
    font-weight: 600;
}

/* Main Content */
.main-content {
    padding: 3rem 1rem;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Device Cards */
.device-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.device-card {
    background: var(--white);
    border-radius: var(--border-radius-xl);
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
}

.device-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.device-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.device-card:hover::before {
    transform: scaleX(1);
}

.device-icon {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
    display: block;
}

.device-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 0.75rem;
}

.device-description {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
    line-height: 1.5;
    font-size: var(--font-size-sm);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    border: none;
    border-radius: var(--border-radius);
    color: var(--white);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-base);
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-blue-dark) 0%, var(--primary-blue) 100%);
}

.btn-secondary {
    background: var(--white);
    border: 2px solid var(--gray-300);
    color: var(--gray-700);
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-secondary:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
    transform: translateY(-1px);
}

/* Booking Form */
.form-container {
    background: var(--white);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 2rem;
    margin-top: 2rem;
    border: 1px solid var(--gray-200);
    display: none;
    animation: slideIn 0.5s ease-out;
}

.form-container.active {
    display: block;
}

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

.form-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 0.5rem;
    text-align: center;
}

.form-subtitle {
    color: var(--gray-600);
    text-align: center;
    margin-bottom: 2rem;
    font-size: var(--font-size-sm);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
    font-size: var(--font-size-sm);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    transition: all 0.3s ease;
    background: var(--white);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control::placeholder {
    color: var(--gray-400);
}

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

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
    color: var(--white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Alert Messages */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    border: 1px solid transparent;
}

.alert-success {
    background: #f0fdf4;
    color: #166534;
    border-color: #bbf7d0;
}

.alert-error {
    background: #fef2f2;
    color: #dc2626;
    border-color: #fecaca;
}

/* Success Animation */
.success-checkmark {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--success);
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: bounce 0.6s ease-in-out;
}

@keyframes bounce {
    0%, 20%, 60%, 100% { transform: translateY(0); }
    40% { transform: translateY(-20px); }
    80% { transform: translateY(-10px); }
}

.hidden {
    display: none !important;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }

    .hero-content {
        max-width: 700px;
    }

    .progress-steps {
        max-width: 500px;
    }
}

@media (max-width: 992px) {
    .container {
        max-width: 720px;
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .device-grid {
        gap: 1.25rem;
    }
}

@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0.75rem;
    }

    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-sm);
    }

    .progress-steps {
        flex-direction: column;
        gap: 1.5rem;
        max-width: 100%;
        padding: 0 0.5rem;
    }

    .step {
        min-width: 100%;
        position: relative;
    }

    .step:not(:last-child)::after {
        display: none;
    }

    .step:not(:last-child)::before {
        content: '';
        position: absolute;
        top: 60px;
        left: 50%;
        width: 2px;
        height: 30px;
        background: var(--gray-200);
        transform: translateX(-50%);
    }

    .step.active:not(:last-child)::before {
        background: var(--primary-blue);
    }

    .step-circle {
        width: 36px;
        height: 36px;
        font-size: var(--font-size-xs);
    }

    .device-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .device-card {
        padding: 1.25rem;
    }

    .device-icon {
        font-size: 2rem;
    }

    .device-title {
        font-size: var(--font-size-lg);
    }

    .device-description {
        font-size: var(--font-size-xs);
    }

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

    .form-row {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .form-title {
        font-size: var(--font-size-xl);
    }

    .form-subtitle {
        font-size: var(--font-size-xs);
    }

    .form-control {
        padding: 0.625rem 0.75rem;
        font-size: var(--font-size-sm);
    }

    .form-actions {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .btn-primary,
    .btn-secondary,
    .btn-success {
        width: 100%;
        padding: 0.625rem 1rem;
        font-size: var(--font-size-sm);
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 0.5rem;
    }

    .hero-section {
        padding: 2rem 0.5rem;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-title {
        font-size: var(--font-size-xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-xs);
    }

    .main-content {
        padding: 1.5rem 0;
    }

    .device-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .device-card {
        padding: 1rem;
    }

    .device-icon {
        font-size: 1.75rem;
    }

    .device-title {
        font-size: var(--font-size-base);
    }

    .device-description {
        font-size: calc(var(--font-size-xs) - 0.05rem);
    }

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

    .form-group {
        margin-bottom: 1rem;
    }

    .form-control {
        padding: 0.5rem 0.75rem;
        font-size: calc(var(--font-size-sm) - 0.05rem);
    }

    .btn-primary,
    .btn-secondary,
    .btn-success {
        padding: 0.5rem 0.75rem;
        font-size: calc(var(--font-size-sm) - 0.05rem);
    }

    .success-checkmark {
        width: 48px;
        height: 48px;
        font-size: 1.5rem;
    }
}

@media (min-width: 1440px) {
    .container {
        max-width: 1280px;
    }

    .hero-content {
        max-width: 900px;
    }

    .progress-steps {
        max-width: 700px;
    }

    .device-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }

    .form-container {
        max-width: 900px;
        margin-left: auto;
        margin-right: auto;
        padding: 2.5rem;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--white);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

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

:root {
    /* Primary Colors */
    --primary-blue: #007bff;
    --white: #ffffff;
    --yellow: #ffc107;
    --black: #000000;

    /* Secondary Colors */
    --gray-dark: #333333;
    --gray-light: #f8f9fa;
    --blue-dark: #0056b3;
    --blue-light: #e7f1ff;

    /* Accent Colors */
    --success-green: #28a745;
    --error-red: #dc3545;
    --info-teal: #17a2b8;

    /* Typography and Layout */
    --font-family: 'Tajawal', sans-serif;
    --font-size-base: 1rem;
    --font-size-large: 1.25rem;
    --font-size-small: 0.875rem;
}


        .loader-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(255, 255, 255, 0.8);
            display: none;
            align-items: center;
            justify-content: center;
            z-index: 1000;
        }
        .loader {
            border: 4px solid var(--primary-blue);
            border-top: 4px solid transparent;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            animation: spin 1s linear infinite;
        }
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        .error-message {
            color: var(--error);
            font-size: var(--font-size-sm);
            margin-top: 5px;
            display: none;
            text-align: right;
        }
        .form-control.error {
            border-color: var(--error) !important;
            box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1) !important;
        }
        .form-control.error:focus {
            border-color: var(--error) !important;
            box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2) !important;
        }