:root {
    --primary: #034ea2;        /* Professional Butagaz-style blue */
    --primary-dark: #023a78;
    --accent: #ff4e03;         /* Industrial orange accent */
    --bg-main: #ffffff;        /* Pure white background */
    --bg-soft: #f1f5f9;
    --text-main: #0f172a;      /* Dark slate for text */
    --text-muted: #64748b;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-soft);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    padding: 3rem 0;
    min-height: 100vh;
}

body.auth-page {
    align-items: center;
    padding: 0;
}

.container {
    width: 95%;
    max-width: 1200px;
}

header {
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.25rem;
}

.logo-icon { font-size: 2rem; }

.logo h1 {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--primary);
}

.logo span { color: var(--text-main); }

.tagline {
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 400;
}

/* Cards */
.card {
    background: white;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
}

.upload-section {
    max-width: 550px;
    margin: 4rem auto;
    text-align: center;
}

.section-badge {
    background: var(--bg-soft);
    color: var(--primary);
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
}

.upload-section h2 { margin-bottom: 0.75rem; font-size: 1.5rem; }
.upload-section p { color: var(--text-muted); margin-bottom: 2rem; font-size: 1rem; }

/* Drop Zone */
.drop-zone {
    border: 2px dashed var(--border);
    border-radius: 8px;
    padding: 4rem 2rem;
    cursor: pointer;
    background: #fafafa;
    transition: all 0.2s ease;
    margin-bottom: 2rem;
}

.drop-zone:hover, .drop-zone--over {
    border-color: var(--primary);
    background: #f0f7ff;
}

.drop-zone__prompt {
    color: var(--primary);
    font-weight: 500;
}

.drop-zone__input { display: none; }

/* Buttons */
.btn {
    display: block;
    width: 100%;
    padding: 1rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    text-align: center;
    text-decoration: none;
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }

.btn-outline {
    background: white;
    color: var(--text-main);
    border: 1px solid var(--border);
}

.btn-outline:hover { background: var(--bg-soft); }

/* Analysis Layout */
.analysis-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

.feed-card { padding: 1rem; }

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

.live-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent);
}

.dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.7; }
    50% { transform: scale(1.1); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.7; }
}

.video-container {
    width: 100%;
    background: #000;
    border-radius: 8px;
    overflow: hidden;
    line-height: 0;
}

#videoStream { width: 100%; height: auto; }

.feed-footer { padding: 1rem 0 0.5rem; }

/* Auth Components */
.auth-container {
    width: 100%;
    max-width: 450px;
    padding: 2rem;
}

.auth-card {
    text-align: center;
    padding: 3rem 2.5rem;
}

.auth-header {
    margin-bottom: 2rem;
}

.auth-header h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.form-group {
    text-align: left;
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

.form-group input {
    width: 100%;
    padding: 0.85rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

.form-group input:focus {
    border-color: var(--primary);
}

.alert {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.alert-error {
    background: #fef2f2;
    color: #ef4444;
    border: 1px solid #fee2e2;
}

.auth-footer {
    margin-top: 2rem;
    font-size: 0.85rem;
}

.auth-footer a {
    display: block;
    margin-top: 0.5rem;
    text-decoration: underline;
}

.auth-setup {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    margin-bottom: 2rem;
}

.qr-code {
    width: 180px;
    height: 180px;
    margin-bottom: 1rem;
    border: 4px solid white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.small { font-size: 0.75rem; }

/* Results Card */
.results-card {
    display: flex;
    flex-direction: column;
}

.total-display {
    background: var(--primary);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.brand-table {
    flex-grow: 1;
    margin: 1.5rem 0;
}

.brand-row {
    display: flex;
    justify-content: space-between;
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--border);
}

.brand-row .name { font-weight: 500; font-size: 0.9rem; }
.brand-row .count { font-weight: 700; color: var(--primary); }

.loading-state {
    text-align: center;
    padding: 3rem 0;
}

.spinner {
    width: 30px;
    height: 30px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: inline-block;
    margin-bottom: 1rem;
}

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

.slide-up { animation: slideUp 0.4s ease-out; }
@keyframes slideUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 900px) {
    .analysis-layout { grid-template-columns: 1fr; }
}