:root {
    --primary-color: #ff5722;
    --primary-light: #ff7e47;
    --primary-dark: #c41c00;
    --dark-bg: #121212;
    --card-bg: #1e1e1e;
    --text-color: #f5f5f5;
    --text-muted: #c5c5c5;
    --border-color: #333;
    --tracker-bg: #252525;
}

body {
    background-color: var(--dark-bg);
    color: var(--text-color);
    font-family: 'Montserrat', sans-serif;
    background-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.95)), url('https://images.unsplash.com/photo-1506399558188-acca6f8cbf41?q=80&w=1950&auto=format&fit=crop');
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    font-size: 16px;
    line-height: 1.6;
}

.navbar {
    background-color: rgba(26, 26, 26, 0.95);
    border-bottom: 2px solid var(--primary-color);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.5);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.6rem;
    color: var(--primary-color) !important;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

.brand-icon {
    margin-right: 0.5rem;
    animation: pulse 2s infinite;
}

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

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    margin-bottom: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

.card-header {
    border-bottom: 1px solid var(--border-color);
    background-color: rgba(255, 87, 34, 0.1);
    border-top-left-radius: 10px !important;
    border-top-right-radius: 10px !important;
    font-weight: 600;
}

.card-header h5 {
    font-size: 1.25rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.tracker-list {
    max-height: 400px;
    overflow-y: auto;
    background-color: var(--tracker-bg);
    border-radius: 8px;
    padding: 12px;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.3);
}

.tracker-list::-webkit-scrollbar {
    width: 8px;
}

.tracker-list::-webkit-scrollbar-track {
    background: var(--card-bg);
    border-radius: 5px;
}

.tracker-list::-webkit-scrollbar-thumb {
    background-color: var(--primary-color);
    border-radius: 5px;
}

.tracker-item {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    font-family: 'Roboto Mono', monospace;
    font-size: 15px;
    border-radius: 4px;
    transition: background-color 0.2s ease;
    line-height: 1.5;
    letter-spacing: 0.4px;
    word-break: break-all;
}

.tracker-item:hover {
    background-color: rgba(255, 87, 34, 0.1);
}

.tracker-item:last-child {
    border-bottom: none;
}

.btn {
    font-weight: 500;
    padding: 0.5rem 1.25rem;
    border-radius: 6px;
}

.btn-sm {
    padding: 0.35rem 0.8rem;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--primary-light);
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.btn-outline-light {
    border-color: var(--text-color);
    color: var(--text-color);
    transition: all 0.3s ease;
}

.btn-outline-light:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.loader {
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 30px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.copied-toast {
    position: fixed;
    bottom: 25px;
    right: 25px;
    background-color: var(--primary-color);
    color: white;
    padding: 16px 28px;
    border-radius: 8px;
    display: none;
    z-index: 1000;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease;
    font-weight: 500;
    font-size: 16px;
    letter-spacing: 0.3px;
}

@keyframes slideIn {
    from { transform: translateY(100px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.form-control {
    background-color: var(--tracker-bg);
    color: var(--text-color);
    border-color: var(--border-color);
    font-size: 15px;
}

.form-control:focus {
    background-color: var(--tracker-bg);
    color: var(--text-color);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(255, 87, 34, 0.25);
}

.text-primary {
    color: var(--primary-color) !important;
}

.badge-counter {
    position: absolute;
    top: -5px;
    right: -10px;
    background-color: var(--primary-color);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 12px;
}

.footer {
    background-color: rgba(26, 26, 26, 0.95);
    padding: 25px 0;
    border-top: 1px solid var(--border-color);
    margin-top: 50px;
}

.text-muted {
    color: var(--text-muted) !important;
}

h1.display-5 {
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    letter-spacing: 0.5px;
}

.lead {
    font-size: 1.2rem;
    font-weight: 400;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

ul {
    font-size: 15px;
}

ul li {
    margin-bottom: 6px;
}

ul li:last-child {
    margin-bottom: 0;
}

.form-control::placeholder {
    color: #9e9e9e;
    opacity: 1;
}