/* Base styles matching promo.antalgija.lt */
:root {
    --primary-color: #2E7D32;      /* Green from Antalgija branding */
    --secondary-color: #4CAF50;
    --accent-color: #81C784;
    --text-color: #333333;
    --bg-color: #FAFAFA;
    --card-bg: #FFFFFF;
    --border-radius: 12px;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
}

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

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.main-header {
    background: var(--primary-color);
    color: white;
    padding: 20px 0;
    box-shadow: var(--shadow);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.main-header h1 {
    font-size: 24px;
    font-weight: 600;
}

.language-selector {
    display: flex;
    gap: 10px;
}

.lang-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

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

/* Theme Selector */
.theme-selector-section {
    margin: 40px 0;
    text-align: center;
}

.theme-selector-section h2 {
    margin-bottom: 30px;
    color: var(--primary-color);
    font-size: 28px;
}

.theme-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.theme-card {
    background: var(--card-bg);
    border: 2px solid #E0E0E0;
    border-radius: var(--border-radius);
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s;
    text-align: center;
    box-shadow: var(--shadow);
}

.theme-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 25px rgba(0,0,0,0.12);
    border-color: var(--primary-color);
}

.theme-card.selected {
    border-color: var(--primary-color);
    background: #F1F8F4;
}

.theme-icon {
    font-size: 48px;
    margin-bottom: 10px;
}

.theme-card span {
    display: block;
    font-weight: 600;
    color: var(--text-color);
}

/* Coupon Builder Container */
.coupon-builder-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin: 40px 0;
}

@media (min-width: 768px) {
    .coupon-builder-container {
        grid-template-columns: 1fr 400px;
    }
    
    .preview-panel {
        position: sticky;
        top: 2rem;
        align-self: start;
    }
}

/* Form Styles */
.coupon-builder {
    background: var(--card-bg);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.form-section {
    margin-bottom: 30px;
}

.form-section h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 20px;
}

input[type="text"],
input[type="email"],
input[type="number"],
textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #E0E0E0;
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.3s;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

textarea {
    resize: vertical;
    min-height: 100px;
}

.char-counter {
    display: block;
    text-align: right;
    font-size: 12px;
    color: #999;
    margin-top: 5px;
}

/* Amount Presets */
.amount-presets {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 10px;
    margin-bottom: 15px;
}

.amount-btn {
    padding: 12px 20px;
    background: white;
    border: 2px solid #E0E0E0;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s;
    color: var(--text-color);
}

.amount-btn:hover {
    border-color: var(--primary-color);
    background: #F1F8F4;
}

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

.custom-amount-input {
    margin-top: 10px;
}

/* Checkbox */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 20px 0;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    cursor: pointer;
}

.recipient-email-input {
    margin-top: 15px;
}

/* Submit Button */
.btn-primary {
    width: 100%;
    padding: 16px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 20px;
}

.btn-primary:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(46, 125, 50, 0.3);
}

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

/* Error Messages */
.error-container {
    background: #FFEBEE;
    border: 2px solid #F44336;
    border-radius: 8px;
    padding: 15px;
    margin: 20px 0;
}

.error-message {
    color: #C62828;
    margin: 5px 0;
}

/* Footer */
.main-footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 20px 0;
    margin-top: 60px;
}

/* Responsive */
@media (max-width: 767px) {
    .header-content {
        flex-direction: column;
        gap: 15px;
    }
    
    .theme-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .amount-presets {
        grid-template-columns: repeat(2, 1fr);
    }
}