:root {
    --primary: #ff4b72;
    --primary-hover: #e0355a;
    --secondary: #ffaa00;
    --accent: #00d2c4;
    --bg-gradient: linear-gradient(135deg, #ffe5ec 0%, #fff0f5 50%, #e6fcf5 100%);
    --card-bg: rgba(255, 255, 255, 0.85);
    --text-color: #2d3748;
    --text-muted: #718096;
    --border-color: rgba(255, 255, 255, 0.6);
    --shadow: 0 10px 25px -5px rgba(255, 75, 114, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    --radius-blob1: 30px 70% 70% 30% / 30% 30% 70% 70%;
    --radius-blob2: 50px 20px 50px 20px;
    --radius-standard: 16px;
}

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

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg-gradient);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    overflow: hidden;
}

.app-container {
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: 25px;
    width: 100%;
    max-width: 1440px;
    height: 92vh;
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 32px;
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.05);
    padding: 20px;
    overflow: hidden;
}

/* Sidebar / Form Area */
.sidebar {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 24px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    animation: slideIn 0.6s ease-out;
}

#app-title {
    font-size: 28px;
    font-weight: 600;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 5px;
}

.subtitle {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 22px;
    background: rgba(255, 255, 255, 0.5);
    padding: 15px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.8);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.form-group:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.03);
}

label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #4a5568;
}

input[type="text"], textarea {
    width: 100%;
    padding: 12px 16px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    background: rgba(255, 255, 255, 0.9);
    font-family: inherit;
    font-size: 14px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

input[type="text"]:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 75, 114, 0.15);
    background: white;
}

.btn-text {
    background: none;
    border: none;
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    padding: 5px 0;
    transition: all 0.2s ease;
    position: relative;
}

.btn-text:hover {
    color: var(--primary-hover);
    transform: translateX(3px);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.loading {
    opacity: 0.6 !important;
    cursor: wait !important;
    pointer-events: none;
}

/* Dynamic Item Styles */
.dynamic-item {
    display: flex;
    gap: 10px;
    margin-bottom: 12px;
    align-items: center;
    animation: popIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.dynamic-item input {
    flex: 1;
}

.btn-remove {
    background: none;
    border: none;
    color: #fc8181;
    font-size: 20px;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.btn-remove:hover {
    color: #e53e3e;
    background: #fff5f5;
    transform: rotate(90deg);
}

.category-block {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.8) 0%, rgba(255, 245, 245, 0.8) 100%);
    padding: 20px;
    border-radius: var(--radius-blob2);
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
    transition: all 0.3s ease;
}

.category-block:hover {
    box-shadow: 0 8px 25px rgba(255, 75, 114, 0.05);
}

.category-header {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

/* Preview Area */
.preview-area {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 24px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: slideIn 0.6s ease-out 0.2s backwards;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.actions {
    display: flex;
    gap: 12px;
}

.btn {
    padding: 12px 24px;
    border-radius: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    font-family: inherit;
    font-size: 14px;
}

.btn.primary {
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    box-shadow: 0 4px 15px rgba(255, 75, 114, 0.3);
}

.btn.primary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 6px 20px rgba(255, 75, 114, 0.4);
}

.btn.secondary {
    background: white;
    color: var(--text-color);
    border: 1px solid #e2e8f0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.02);
}

.btn.secondary:hover {
    background: #f8fafc;
    border-color: var(--primary);
    transform: translateY(-1px);
}

.preview-window {
    flex: 1;
    background: #fff9fa;
    border-radius: 20px;
    padding: 30px;
    overflow-y: auto;
    border: 1px solid rgba(255, 75, 114, 0.05);
}

.preview-content {
    background: white;
    max-width: 600px;
    margin: 0 auto;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid #fff0f3;
}

.placeholder-text {
    text-align: center;
    color: var(--text-muted);
    padding: 60px 40px;
    font-style: italic;
}

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

@keyframes popIn {
    0% { transform: scale(0.9); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.02);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 75, 114, 0.2);
    border-radius: 4px;
    transition: background 0.3s;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 75, 114, 0.4);
}