:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #475569;
    --secondary-hover: #334155;
    --background-color: #f1f5f9;
    --card-bg: #ffffff;
    --text-color: #0f172a;
    --label-color: #334155;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --border-radius: 0.5rem;
    --border-radius-sm: 0.375rem;
    --spacing-xs: 0.2rem;
    --spacing-sm: 0.4rem;
    --spacing-md: 0.75rem;
    --spacing-lg: 1.25rem;
    --spacing-xl: 1.5rem;
    --font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    --transition: all 0.3s ease;
    --icon-xs: 10px;
    --icon-sm: 14px;
    --icon-md: 18px;
}

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

/* İkonlar için genel stil */
[data-lucide] {
    stroke-width: 1.5;
    width: var(--icon-sm);
    height: var(--icon-sm);
}

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.5;
    padding: var(--spacing-md);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}

.container {
    width: 100%;
    max-width: 700px;
    margin: 1.5rem auto;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: var(--spacing-lg);
    transition: var(--transition);
}

header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.logo-container {
    width: 45px;
    height: 45px;
    margin: 0 auto 0.75rem;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
}

.logo-icon {
    color: white;
    width: 22px;
    height: 22px;
}

header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.025em;
}

header p {
    color: var(--secondary-color);
    font-size: 0.95rem;
}

/* Progress bar ile ilgili stiller kaldırıldı */

.form-group {
    margin-bottom: var(--spacing-md);
    transition: var(--transition);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-sm);
    border: 1px solid transparent;
}

.form-group:hover, .form-group:focus-within {
    background-color: rgba(241, 245, 249, 0.5);
    border-color: var(--border-color);
}

label {
    display: flex;
    align-items: center;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--label-color);
    font-size: 0.8rem;
}

label i {
    margin-right: var(--spacing-xs);
    color: var(--primary-color);
    width: var(--icon-xs) !important;
    height: var(--icon-xs) !important;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.group-label {
    margin-bottom: var(--spacing-sm);
}

input[type="number"],
input[type="text"],
select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background-color: var(--card-bg);
    font-size: 0.9rem;
    transition: var(--transition);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

input[type="number"]:focus,
input[type="text"]:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}

.select-wrapper {
    position: relative;
}

.select-wrapper::after {
    content: '';
    position: absolute;
    top: 50%;
    right: var(--spacing-md);
    transform: translateY(-50%);
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid var(--secondary-color);
    pointer-events: none;
}

.select-wrapper.active {
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}

select {
    appearance: none;
    padding-right: 2rem;
}

/* Modern radio ve checkbox stilleri */
.radio-group, .checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.radio-item, .checkbox-item {
    display: flex;
    align-items: center;
    position: relative;
}

.modern-radio .radio-item {
    flex: 1;
    min-width: 90px;
}

.modern-radio .radio-item input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.modern-radio .radio-item label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    background-color: var(--card-bg);
    text-align: center;
    margin: 0;
    font-size: 0.8rem;
}

.modern-radio .radio-item input[type="radio"]:checked + label {
    border-color: var(--primary-color);
    background-color: rgba(37, 99, 235, 0.05);
    box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.2);
}

.modern-radio .radio-item input[type="radio"]:focus + label {
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}

.radio-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: rgba(37, 99, 235, 0.1);
    margin-bottom: var(--spacing-xs);
    color: var(--primary-color);
    transition: var(--transition);
}

.radio-icon i {
    width: var(--icon-sm) !important;
    height: var(--icon-sm) !important;
    display: flex;
    align-items: center;
    justify-content: center;
}

.radio-item input[type="radio"]:checked + label .radio-icon {
    background-color: var(--primary-color);
    color: white;
}

.radio-item input[type="radio"],
.checkbox-wrapper input[type="checkbox"] {
    margin-right: var(--spacing-xs);
    width: 1rem;
    height: 1rem;
    accent-color: var(--primary-color);
    cursor: pointer;
}

.radio-item label, 
.checkbox-wrapper label {
    cursor: pointer;
}

/* Sayısal değer arttırma/azaltma butonları */
.number-input-wrapper {
    display: flex;
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.number-input-wrapper input[type="number"] {
    border: none;
    box-shadow: none;
    text-align: center;
    -moz-appearance: textfield;
    font-size: 0.9rem;
    height: 2.2rem;
}

.number-input-wrapper input[type="number"]::-webkit-outer-spin-button,
.number-input-wrapper input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.number-decrement,
.number-increment {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--background-color);
    border: none;
    color: var(--secondary-color);
    width: 2.2rem;
    height: 2.2rem;
    cursor: pointer;
    transition: var(--transition);
}

.number-decrement i,
.number-increment i {
    width: var(--icon-xs) !important;
    height: var(--icon-xs) !important;
}

.number-decrement:hover,
.number-increment:hover {
    background-color: var(--primary-color);
    color: white;
}

.direction-group {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--spacing-sm);
}

.direction-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.direction-item:hover, 
.direction-item:has(input[type="checkbox"]:checked) {
    border-color: var(--primary-color);
    background-color: rgba(241, 245, 249, 0.5);
    box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.2);
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
}

.checkbox-wrapper label i {
    width: var(--icon-xs) !important;
    height: var(--icon-xs) !important;
}

.area-input {
    margin-top: var(--spacing-xs);
}

.area-input input {
    border-radius: var(--border-radius-sm);
    height: 2.2rem;
    font-size: 0.85rem;
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.btn-primary, .btn-secondary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    height: 2.4rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background-color: var(--secondary-hover);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

/* Modern addition: Toast notification */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--primary-color);
    color: white;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
}

.toast i {
    width: var(--icon-sm) !important;
    height: var(--icon-sm) !important;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .form-actions {
        flex-direction: column;
    }
    
    .direction-group {
        grid-template-columns: 1fr;
    }
    
    .radio-group, .checkbox-group {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .container {
        padding: var(--spacing-md);
        margin: 0;
        border-radius: 0;
    }

    body {
        padding: 0;
    }
}

/* Modern loading animation */
@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.loading {
    animation: pulse 1.5s infinite ease-in-out;
}

/* Focus styles for accessibility */
:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn-primary i, 
.btn-secondary i {
    width: var(--icon-sm) !important;
    height: var(--icon-sm) !important;
}

/* Modal Stilleri */
.modal-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-container.show {
    opacity: 1;
}

.modal-content {
    background-color: white;
    border-radius: 8px;
    padding: 24px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal-container.show .modal-content {
    transform: translateY(0);
}

.modal-content h3 {
    margin-top: 0;
    margin-bottom: 20px;
    color: var(--primary-color);
    font-size: 1.5rem;
    text-align: center;
}

.modal-content p {
    margin: 12px 0;
    display: flex;
    justify-content: space-between;
    padding-bottom: 8px;
    border-bottom: 1px solid #eee;
}

.modal-content p::after {
    content: attr(data-value);
    font-weight: 500;
}

.modal-content p.total {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-top: 16px;
    padding-top: 8px;
    border-top: 2px solid var(--primary-color);
    border-bottom: none;
}

.modal-content button {
    display: block;
    margin: 24px auto 0;
    padding: 12px 24px;
}