/* ===================================
   Fiyat Al - İkinci El Cihaz Formu
   =================================== */

:root {
    --fa-primary: #25D366;
    --fa-primary-dark: #1da851;
    --fa-bg: #ffffff;
    --fa-bg-alt: #f8f9fa;
    --fa-border: #e0e0e0;
    --fa-text: #1a1a1a;
    --fa-text-light: #6b7280;
    --fa-radius: 12px;
    --fa-radius-sm: 8px;
    --fa-shadow: 0 4px 24px rgba(0,0,0,0.08);
    --fa-shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --fa-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Container */
.fiyat-al-container {
    max-width: 680px;
    margin: 30px auto;
    background: var(--fa-bg);
    border-radius: var(--fa-radius);
    box-shadow: var(--fa-shadow);
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--fa-text);
    line-height: 1.5;
}

.fiyat-al-container * {
    box-sizing: border-box;
}

/* Header */
.fa-header {
    background: linear-gradient(135deg, var(--fa-primary), var(--fa-primary-dark));
    color: #fff;
    padding: 32px 28px 28px;
    text-align: center;
}

.fa-icon {
    width: 56px;
    height: 56px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.fa-icon svg {
    color: #fff;
}

.fa-title {
    font-size: 22px;
    font-weight: 700;
    margin: 0 0 8px;
    color: #fff;
    line-height: 1.3;
}

.fa-subtitle {
    font-size: 14px;
    opacity: 0.9;
    margin: 0;
    color: #fff;
}

/* Progress Bar */
.fa-progress-bar {
    height: 4px;
    background: var(--fa-border);
    position: relative;
}

.fa-progress-fill {
    height: 100%;
    background: var(--fa-primary);
    transition: width 0.4s ease;
    width: 33%;
    border-radius: 0 2px 2px 0;
}

/* Form */
.fa-form {
    padding: 28px;
}

/* Steps */
.fa-step {
    display: none;
    animation: faFadeIn 0.3s ease;
}

.fa-step-active {
    display: block;
}

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

/* Labels */
.fa-label {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: var(--fa-text);
    margin-bottom: 12px;
}

.fa-field-group {
    margin-bottom: 20px;
}

/* Device Grid */
.fa-device-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

@media (max-width: 600px) {
    .fa-device-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.fa-device-card {
    border: 2px solid var(--fa-border);
    border-radius: var(--fa-radius-sm);
    padding: 16px 8px;
    text-align: center;
    cursor: pointer;
    transition: var(--fa-transition);
    background: var(--fa-bg);
    user-select: none;
}

.fa-device-card:hover {
    border-color: var(--fa-primary);
    background: rgba(37, 211, 102, 0.04);
    transform: translateY(-2px);
    box-shadow: var(--fa-shadow-sm);
}

.fa-device-card.selected {
    border-color: var(--fa-primary);
    background: rgba(37, 211, 102, 0.08);
    box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.15);
}

.fa-device-card-icon {
    width: 44px;
    height: 44px;
    margin: 0 auto 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--fa-text-light);
    transition: var(--fa-transition);
}

.fa-device-card.selected .fa-device-card-icon,
.fa-device-card:hover .fa-device-card-icon {
    color: var(--fa-primary);
}

.fa-device-card-icon svg {
    width: 36px;
    height: 36px;
}

.fa-device-card-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--fa-text);
    line-height: 1.2;
}

/* Select / Input fields */
.fa-select-wrapper {
    position: relative;
}

.fa-select-wrapper::after {
    content: '';
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid var(--fa-text-light);
    pointer-events: none;
}

.fa-select,
.fa-input {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    border: 2px solid var(--fa-border);
    border-radius: var(--fa-radius-sm);
    background: var(--fa-bg);
    color: var(--fa-text);
    transition: var(--fa-transition);
    appearance: none;
    -webkit-appearance: none;
    outline: none;
    font-family: inherit;
}

.fa-select:focus,
.fa-input:focus {
    border-color: var(--fa-primary);
    box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.15);
}

.fa-custom-input {
    animation: faFadeIn 0.2s ease;
}

.fa-select {
    padding-right: 36px;
    cursor: pointer;
}

/* Option Buttons (radio-style) */
.fa-options-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.fa-option-btn {
    padding: 10px 18px;
    border: 2px solid var(--fa-border);
    border-radius: 50px;
    background: var(--fa-bg);
    color: var(--fa-text);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--fa-transition);
    user-select: none;
    white-space: nowrap;
    font-family: inherit;
    outline: none;
}

.fa-option-btn:hover {
    border-color: var(--fa-primary);
    background: rgba(37, 211, 102, 0.04);
}

.fa-option-btn.selected {
    border-color: var(--fa-primary);
    background: var(--fa-primary);
    color: #fff;
}

/* Multi-select checkboxes */
.fa-checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.fa-checkbox-btn {
    padding: 10px 18px;
    border: 2px solid var(--fa-border);
    border-radius: 50px;
    background: var(--fa-bg);
    color: var(--fa-text);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--fa-transition);
    user-select: none;
    white-space: nowrap;
    font-family: inherit;
    outline: none;
}

.fa-checkbox-btn:hover {
    border-color: var(--fa-primary);
    background: rgba(37, 211, 102, 0.04);
}

.fa-checkbox-btn.selected {
    border-color: var(--fa-primary);
    background: var(--fa-primary);
    color: #fff;
}

/* Navigation */
.fa-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 28px;
    gap: 12px;
}

.fa-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border: none;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--fa-transition);
    font-family: inherit;
    outline: none;
    text-decoration: none;
}

.fa-btn-back {
    background: var(--fa-bg-alt);
    color: var(--fa-text-light);
    padding: 14px 20px;
}

.fa-btn-back:hover {
    background: #e9ecef;
    color: var(--fa-text);
}

.fa-btn-next {
    background: var(--fa-primary);
    color: #fff;
    margin-left: auto;
}

.fa-btn-next:hover {
    background: var(--fa-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
}

.fa-btn-next:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.fa-btn-whatsapp {
    background: #25D366;
    color: #fff;
    width: 100%;
    justify-content: center;
    padding: 16px 28px;
    font-size: 16px;
}

.fa-btn-whatsapp:hover {
    background: #1da851;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.35);
}

/* Summary */
.fa-summary {
    margin-top: 24px;
    padding: 20px;
    background: var(--fa-bg-alt);
    border-radius: var(--fa-radius-sm);
    border: 1px solid var(--fa-border);
}

.fa-summary-title {
    font-size: 16px;
    font-weight: 700;
    margin: 0 0 16px;
    color: var(--fa-text);
    display: flex;
    align-items: center;
    gap: 8px;
}

.fa-summary-title::before {
    content: '';
    width: 4px;
    height: 20px;
    background: var(--fa-primary);
    border-radius: 2px;
}

.fa-summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid rgba(0,0,0,0.06);
    font-size: 14px;
}

.fa-summary-row:last-child {
    border-bottom: none;
}

.fa-summary-label {
    color: var(--fa-text-light);
    font-weight: 500;
}

.fa-summary-value {
    color: var(--fa-text);
    font-weight: 600;
    text-align: right;
    max-width: 60%;
}

/* Validation error */
.fa-error-msg {
    color: #dc3545;
    font-size: 13px;
    margin-top: 6px;
    display: none;
    animation: faFadeIn 0.2s ease;
}

.fa-error-msg.visible {
    display: block;
}

.fa-field-error .fa-select,
.fa-field-error .fa-input {
    border-color: #dc3545;
}

/* Shake animation for validation */
@keyframes faShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.fa-shake {
    animation: faShake 0.3s ease;
}

/* Responsive */
@media (max-width: 480px) {
    .fa-form {
        padding: 20px 16px;
    }

    .fa-header {
        padding: 24px 16px 20px;
    }

    .fa-title {
        font-size: 18px;
    }

    .fa-btn {
        padding: 12px 20px;
        font-size: 14px;
    }

    .fa-option-btn,
    .fa-checkbox-btn {
        padding: 8px 14px;
        font-size: 13px;
    }

    .fa-nav {
        flex-wrap: wrap;
    }

    .fa-summary-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 2px;
    }

    .fa-summary-value {
        text-align: left;
        max-width: 100%;
    }
}