styles.css

:root {
    --bg-color: #0f1115;
    --panel-bg: #1a1d24;
    --razer-green: #44d62c;
    --razer-green-hover: #35a822;
    --razer-green-glow: rgba(68, 214, 44, 0.3);
    --text-primary: #e0e0e0;
    --text-secondary: #8b92a5;
    --border-color: #2a2e39;
    --border-highlight: #3a404f;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(68, 214, 44, 0.05), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(68, 214, 44, 0.05), transparent 25%);
}

.container {
    width: 100%;
    max-width: 600px;
    padding: 2rem;
    animation: fadeIn 0.6s ease-out;
}

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

header {
    text-align: center;
    margin-bottom: 2.5rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.badge {
    font-size: 0.7rem;
    background: var(--razer-green);
    color: #000;
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: 800;
    letter-spacing: 1px;
    vertical-align: middle;
}

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

.connect-panel {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    margin-bottom: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
}

.connect-panel:hover {
    border-color: var(--border-highlight);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.controls-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    animation: fadeIn 0.5s ease-out;
}

.control-group {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    transition: var(--transition);
}

.control-group:hover {
    border-color: var(--border-highlight);
}

.control-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.control-header h2 {
    font-size: 1.2rem;
    font-weight: 600;
}

.current-val {
    background: rgba(255, 255, 255, 0.05);
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--razer-green);
    font-weight: 600;
    border: 1px solid rgba(68, 214, 44, 0.2);
}

.control-body {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.setting-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
    flex-wrap: wrap;
}

.setting-row label {
    flex: 1;
    min-width: 150px;
    font-weight: 500;
    color: var(--text-secondary);
    text-align: left;
}

.battery-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--razer-green);
    background: rgba(68, 214, 44, 0.1);
    padding: 6px 12px;
    border-radius: 8px;
    border: 1px solid rgba(68, 214, 44, 0.2);
}

.battery-charging {
    color: #e5b300;
    background: rgba(229, 179, 0, 0.1);
    border-color: rgba(229, 179, 0, 0.2);
}

.battery-low {
    color: #ff4a4a;
    background: rgba(255, 74, 74, 0.1);
    border-color: rgba(255, 74, 74, 0.2);
}

input[type="color"] {
    -webkit-appearance: none;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    cursor: pointer;
    background: none;
}
input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}
input[type="color"]::-webkit-color-swatch {
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

/* Form Elements */
input[type=range] {
    -webkit-appearance: none;
    flex: 1;
    min-width: 200px;
    height: 8px;
    background: #2a2e39;
    border-radius: 4px;
    outline: none;
}

input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--razer-green);
    cursor: pointer;
    box-shadow: 0 0 10px var(--razer-green-glow);
    transition: var(--transition);
}

input[type=range]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

input[type=number], select {
    background: #0f1115;
    border: 1px solid var(--border-color);
    color: white;
    padding: 12px;
    border-radius: 8px;
    outline: none;
    font-size: 1rem;
    transition: var(--transition);
}

input[type=number]:focus, select:focus {
    border-color: var(--razer-green);
    box-shadow: 0 0 0 2px var(--razer-green-glow);
}

input[type=number] {
    width: 100px;
}

select {
    flex: 1;
    cursor: pointer;
}

/* Buttons */
button {
    cursor: pointer;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    padding: 12px 24px;
    transition: var(--transition);
    outline: none;
}

.primary-btn {
    background: var(--razer-green);
    color: #000;
    box-shadow: 0 4px 15px var(--razer-green-glow);
    font-size: 1.1rem;
    padding: 16px 32px;
}

.primary-btn:hover {
    background: var(--razer-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(68, 214, 44, 0.4);
}

.secondary-btn {
    background: rgba(255, 255, 255, 0.05);
    color: white;
    border: 1px solid var(--border-color);
}

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

.outline-btn {
    background: transparent;
    color: var(--text-secondary);
    border: 1px dashed var(--border-color);
    width: 100%;
}

.outline-btn:hover {
    color: white;
    border-color: var(--text-secondary);
    background: rgba(255,255,255,0.02);
}

#connection-status {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Utility classes */
.status-connected {
    color: var(--razer-green) !important;
}

.status-error {
    color: #ff4a4a !important;
}

/* Toast Notifications */
#toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1000;
}
.toast {
    background-color: #2c2c2c;
    color: white;
    padding: 12px 20px;
    border-radius: 8px;
    border-left: 5px solid var(--razer-green);
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    opacity: 0;
    transform: translateX(100%);
    animation: toast-in 0.3s forwards, toast-out 0.3s forwards 3s;
}
.toast.error {
    border-left-color: #ff4a4a;
}
@keyframes toast-in {
    to { opacity: 1; transform: translateX(0); }
}
@keyframes toast-out {
    to { opacity: 0; transform: translateX(100%); }
}

/* Button Success Flash */
.btn-success {
    background-color: var(--razer-green) !important;
    color: #000 !important;
    transition: background-color 0.3s;
}

/* DPI Stage Badges */
.dpi-stages-row {
    display: flex;
    gap: 8px;
    width: 100%;
}
.dpi-stage-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    flex: 1;
}
.dpi-stage-item input[type="number"] {
    width: 100%;
    min-width: 50px;
}
.stage-badge {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    background: #2a2e39;
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
    transition: var(--transition);
    /* Badges are clickable to choose the active stage. */
    cursor: pointer;
}

.stage-badge:hover {
    border-color: var(--razer-green);
}
.stage-badge.active-stage {
    background: var(--razer-green);
    color: #000;
    border-color: var(--razer-green);
    box-shadow: 0 0 8px var(--razer-green-glow);
}

/* Disconnected Status */
.status-disconnected {
    color: #ff8c00 !important;
}