/*
==============================================
   BASE & THEME
==============================================
*/

:root {
    --primary-bg: #111827;
    --secondary-bg: #1F2937;
    --text-primary: #F9FAFB;
    --text-secondary: #9CA3AF;
    --accent-color: #3B82F6;
    --accent-color-hover: #2563EB;
    --error-color: #EF4444;
    --success-color: #10B981;
    --border-color: #374151;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--primary-bg);
    color: var(--text-primary);
    margin: 0;
    line-height: 1.5;
}

/*
==============================================
   LAYOUT & HEADER
==============================================
*/

.sticky-navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: rgba(17, 24, 39, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
}

.sticky-navbar nav a {
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 1.5rem;
    transition: color 0.2s ease;
}

.sticky-navbar nav a:hover {
    color: var(--text-primary);
}

main {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

/*
==============================================
   HERO & SEARCH
==============================================
*/

.hero {
    text-align: center;
    padding: 4rem 0;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.tagline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.search-container {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
}

#product-search {
    flex-grow: 1;
    border: 1px solid var(--border-color);
    background-color: var(--secondary-bg);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border-radius: 6px 0 0 6px;
    outline: none;
}

#product-search:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px var(--accent-color);
}

#analyze-button {
    border: none;
    background-color: var(--accent-color);
    color: white;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: 0 6px 6px 0;
    transition: background-color 0.2s ease;
}

#analyze-button:hover {
    background-color: var(--accent-color-hover);
}

.example-searches {
    margin-top: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.example-searches span {
    margin-right: 0.5rem;
}

.example-search {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    cursor: pointer;
    margin: 0 0.25rem;
    transition: all 0.2s ease;
}

.example-search:hover {
    background-color: var(--secondary-bg);
    color: var(--text-primary);
    border-color: var(--accent-color);
}

/*
==============================================
   RESULTS & FEEDBACK
==============================================
*/

#results-section {
    padding-top: 2rem;
}

#loading-indicator {
    text-align: center;
    padding: 2rem;
}

/* Spinner Animation */
.spinner {
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-left-color: var(--accent-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

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


#error-message {
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error-color);
    color: var(--error-color);
    padding: 1rem;
    border-radius: 6px;
    text-align: center;
}

.hidden {
    display: none;
}

/* 
==============================================
   NEW PREMIUM REPORT STYLES
==============================================
*/

.recommendation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0,0,0,0.2);
    padding: 1.5rem 2rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.recommendation-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin: 0;
    color: var(--accent-color);
}

.gauge-container {
    position: relative;
    width: 120px;
    height: 60px; /* Half height of width for semicircle */
}

.gauge {
    width: 100%;
    height: 100%;
}

.gauge-background {
    stroke: var(--border-color);
    stroke-width: 8;
    fill: none;
    stroke-linecap: round;
}

.gauge-arc {
    stroke: var(--accent-color);
    stroke-width: 8;
    fill: none;
    stroke-linecap: round;
    transition: stroke-dashoffset 1s ease-out;
    transform-origin: 50% 50%;
}

.gauge-text {
    position: absolute;
    top: 60%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.gauge-label {
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}


.report-section {
    background-color: transparent;
    padding: 1rem 0;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.report-section:last-child {
    border-bottom: none;
}

.report-section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 0;
    margin-bottom: 0.75rem;
}

.report-section p {
    margin-top: 0;
    margin-bottom: 0.5rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.report-section ul {
    margin: 0;
    padding-left: 20px;
    color: var(--text-secondary);
    list-style-type: disc;
}

.report-section li {
    margin-bottom: 0.5rem;
}