/*
 * Modern Dark Theme for Phone Comparison Web App
 * Applies to both user and admin pages
 */
:root {
    --bg: #181818;
    --bg-alt: #232323;
    --card: #232323;
    --card-alt: #1e1e1e;
    --accent: #7cf6ff;
    --accent-hover: #00e0ff;
    --accent2: #a78bfa;
    --danger: #f44336;
    --success: #34d399;
    --text: #fff;
    --text-muted: #aaa;
    --shadow: 0 2px 16px #000a;
}
html, body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Segoe UI', 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}
body {
    min-height: 100vh;
}
nav {
    background: #181818;
    padding: 0.5em 1em;
    display: flex;
    align-items: center;
    position: relative;
    z-index: 100;
    box-shadow: 0 2px 8px #0006;
}
.nav-links {
    display: flex;
    gap: 1.5em;
    flex-wrap: wrap;
}
.nav-link {
    color: var(--accent2);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1em;
    transition: color 0.2s;
}
.nav-link:hover {
    color: var(--accent);
}
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    width: 36px;
    height: 36px;
    cursor: pointer;
    margin-right: 1em;
}
.hamburger span {
    height: 4px;
    width: 28px;
    background: var(--accent2);
    margin: 4px 0;
    border-radius: 2px;
    transition: all 0.3s;
}
@media (max-width: 700px) {
    nav {
        flex-direction: row;
        justify-content: space-between;
    }
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #181818;
        flex-direction: column;
        gap: 0;
        display: none;
        box-shadow: 0 4px 16px #000a;
    }
    .nav-links.open {
        display: flex;
    }
    .nav-link {
        padding: 1em 1.5em;
        border-bottom: 1px solid #232323;
        font-size: 1.15em;
    }
    .hamburger {
        display: flex;
    }
}
.main-container {
    min-height: 80vh;
    padding: 2em 0 3em 0;
}
.card, .stat-card, .action-card, .result-card, .company-card, .phone-card, .form-container, .phones-container, .dashboard-container, .setup-container {
    background: var(--card);
    border-radius: 14px;
    box-shadow: var(--shadow);
    padding: 1.5em;
    margin-bottom: 2em;
}
.company-grid, .results-grid, .phones-grid, .stats-grid, .action-grid, .phone-grid {
    display: grid;
    gap: 2em;
}
.company-grid, .results-grid, .phones-grid, .phone-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}
.stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}
.action-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
.company-card, .result-card, .phone-card, .stat-card, .action-card {
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
    border: 2px solid transparent;
}
.company-card:hover, .result-card:hover, .phone-card:hover, .stat-card:hover, .action-card:hover {
    transform: translateY(-5px) scale(1.03);
    box-shadow: 0 8px 24px var(--accent-hover);
    border-color: var(--accent-hover);
}
.result-image, .phone-img, .phone-img-large {
    width: 100%;
    height: 200px;
    object-fit: contain;
    background: #181818;
    border-radius: 8px;
    padding: 1em;
    margin-bottom: 1em;
}
.phone-img-large {
    width: 180px;
    height: 240px;
    margin-right: 2em;
    display: block;
}
.form-container, .setup-container {
    max-width: 800px;
    margin: 2em auto;
    padding: 2em 1em;
}
.form-group {
    margin-bottom: 1.5em;
}
.form-group label {
    display: block;
    margin-bottom: 0.5em;
    color: var(--accent);
    font-weight: bold;
}
.form-control {
    width: 100%;
    padding: 0.8em;
    border: 2px solid #333;
    border-radius: 8px;
    background: #232323;
    color: #fff;
    font-size: 1em;
}
.form-control:focus {
    border-color: var(--accent);
    outline: none;
}
.submit-btn, button, input[type="submit"], .add-phone-btn {
    padding: 0.8em 2em;
    background: var(--accent);
    color: #181818;
    border: none;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.2s;
}
.submit-btn:hover, button:hover, input[type="submit"]:hover, .add-phone-btn:hover {
    background: var(--accent-hover);
}
.success {
    color: var(--success);
    background: #232323;
    border-left: 4px solid var(--success);
    padding: 1em;
    border-radius: 8px;
    margin-bottom: 1em;
}
.error-message, .error {
    color: var(--danger);
    background: #232323;
    border-left: 4px solid var(--danger);
    padding: 1em;
    border-radius: 8px;
    margin-bottom: 1em;
}
.no-results, .no-phones {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.2em;
    margin-top: 2em;
}
::-webkit-scrollbar {
    width: 10px;
    background: #232323;
}
::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 8px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent2);
}
@media (max-width: 900px) {
    .main-container, .dashboard-container, .phones-container, .form-container, .setup-container {
        padding: 1em 0.5em;
    }
}
@media (max-width: 700px) {
    .main-container, .dashboard-container, .phones-container, .form-container, .setup-container {
        padding: 0.5em 0.2em;
    }
    .company-grid, .results-grid, .phones-grid, .phone-grid {
        grid-template-columns: 1fr;
    }
    .stats-grid, .action-grid {
        grid-template-columns: 1fr;
    }
    .phone-main-container {
        flex-direction: column;
        align-items: center;
    }
    .phone-img-large {
        margin: 0 0 1em 0;
    }
}