:root {
    --bg-color: #05060A;
    --text-primary: #ffffff;
    --text-secondary: #94A3B8;
    --accent: #6366F1;
    --accent-glow: rgba(99, 102, 241, 0.4);
    --surface: rgba(255, 255, 255, 0.03);
    --surface-hover: rgba(255, 255, 255, 0.05);
    --border: rgba(255, 255, 255, 0.1);
    --border-hover: rgba(255, 255, 255, 0.2);
    --success: #10B981;
    --error: #EF4444;
    --error-bg: rgba(239, 68, 68, 0.1);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Animated Background Blobs */
.background-blobs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.5;
    animation: float 20s infinite ease-in-out alternate;
}

.blob-1 {
    top: 10%;
    left: 20%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.3) 0%, rgba(99, 102, 241, 0) 70%);
    animation-delay: 0s;
}

.blob-2 {
    bottom: 10%;
    right: 15%;
    width: 35vw;
    height: 35vw;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.2) 0%, rgba(236, 72, 153, 0) 70%);
    animation-delay: -5s;
}

.blob-3 {
    top: 40%;
    left: 60%;
    width: 30vw;
    height: 30vw;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.2) 0%, rgba(16, 185, 129, 0) 70%);
    animation-delay: -10s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(5%, 5%) scale(1.1); }
    100% { transform: translate(-5%, -5%) scale(0.9); }
}

.container {
    width: 90%;
    max-width: 800px;
    padding: 2rem 0;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

header {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.logo {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--surface), rgba(255, 255, 255, 0.08));
    border: 1px solid var(--border);
    border-radius: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--accent);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2), inset 0 0 20px var(--surface);
}

h1 {
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    background: linear-gradient(180deg, #FFFFFF 0%, #A1A1AA 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 500px;
}

/* Glassmorphism Dropzone */
.dropzone {
    width: 100%;
    height: 300px;
    background: var(--surface);
    border: 2px dashed var(--border);
    border-radius: 24px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.dropzone::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle at center, var(--accent-glow) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.dropzone:hover, .dropzone.dragover {
    border-color: var(--accent);
    background: var(--surface-hover);
    transform: translateY(-4px);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.3), 0 0 24px var(--accent-glow);
}

.dropzone:hover::before, .dropzone.dragover::before {
    opacity: 0.15;
}

.dropzone-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    pointer-events: none;
}

.upload-icon {
    color: var(--text-secondary);
    transition: color 0.3s ease, transform 0.3s ease;
}

.dropzone:hover .upload-icon, .dropzone.dragover .upload-icon {
    color: var(--accent);
    transform: translateY(-4px);
}

.dropzone h2 {
    font-size: 1.5rem;
    font-weight: 500;
}

.dropzone p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.browse-btn {
    margin-top: 1rem;
    padding: 0.75rem 2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    pointer-events: auto;
    transition: all 0.2s;
}

.browse-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-hover);
}

.hidden-input {
    display: none;
}

/* Results Section */
.results {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 2rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    animation: slideUp 0.5s ease forwards;
}

.hidden {
    display: none !important;
}

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

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 1rem;
}

.file-info {
    margin-bottom: 2rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

#filename {
    background: rgba(255, 255, 255, 0.05);
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    border: 1px solid var(--border);
}

.icon-btn, .text-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
}

.icon-btn:hover, .text-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-hover);
}

/* Prompts Container */
.prompts-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.prompt-card {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
}

.prompt-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
}

.prompt-card.positive::before {
    background-color: var(--success);
    box-shadow: 0 0 10px var(--success);
}

.prompt-card.negative::before {
    background-color: var(--error);
    box-shadow: 0 0 10px var(--error);
}

.prompt-card.neutral::before {
    background-color: var(--accent);
    box-shadow: 0 0 10px var(--accent);
}

.prompt-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.prompt-title {
    font-size: 1.1rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.badge {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-weight: 600;
}

.badge.positive { background: rgba(16, 185, 129, 0.1); color: var(--success); }
.badge.negative { background: rgba(239, 68, 68, 0.1); color: var(--error); }
.badge.neutral { background: rgba(99, 102, 241, 0.1); color: var(--accent); }

.prompt-text {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.03);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    white-space: pre-wrap;
    word-break: break-word;
}

/* Raw JSON Area */
.raw-json-container {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    margin-top: 1rem;
}

.json-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--border);
}

.json-header h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

pre {
    padding: 1rem;
    margin: 0;
    max-height: 300px;
    overflow: auto;
    font-family: monospace;
    font-size: 0.85rem;
    color: #A1A1AA;
}

pre::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

pre::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}

pre::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

pre::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Error Message */
.error-message {
    margin-top: 1rem;
    padding: 1rem 1.5rem;
    background: var(--error-bg);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 12px;
    color: #FCA5A5;
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: shake 0.5s cubic-bezier(.36,.07,.19,.97) both;
}

@keyframes shake {
    10%, 90% { transform: translate3d(-1px, 0, 0); }
    20%, 80% { transform: translate3d(2px, 0, 0); }
    30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
    40%, 60% { transform: translate3d(4px, 0, 0); }
}

/* Loading State */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: var(--text-primary);
    animation: spin 1s ease-in-out infinite;
}

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

/* Toast Notification for copying */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--surface);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 100px;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    pointer-events: none;
    z-index: 100;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

@media (max-width: 600px) {
    .container { width: 95%; padding: 1rem 0; }
    h1 { font-size: 2rem; }
    .dropzone { height: 250px; }
}