/* ========== Variables ========== */
:root {
    --bg-main: #222;
    --bg-container: #201e29;
    --bg-panel: #1b1b1b6f;
    --bg-button: #2e2e34;
    --bg-button-hover: #3a3a42;
    --color-text: #eee;
    --color-overlay: #a1a1a1;
    --color-highlight: rgba(100, 150, 255, 0.2);
    --border-color: #555555;
    --radius: 20px;
    --font-base: Arial, sans-serif;
    --slider-thumb-width: 20px;
    --slider-thumb-height: 40px;
    --modal-backdrop: rgba(0, 0, 0, 0.4);
    --modal-hover: #3a3a42;
    --modal-bg: #1b1b1b;
    --info-text: #777777;
    --spacing: 10px;
}

/* ========== Base ========== */
body {
    font-family: var(--font-base);
    background: var(--bg-main);
    color: var(--color-text);
    margin: 20px;
}

#mainContainer {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

#eqContainer,
#controlsContainer {
    display: flex;
    flex-direction: column;
    background: var(--bg-container);
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    padding: 10px;
}

#eqContainer {
    position: relative;
}

#topControls,
#topSettings {
    display: flex;
    justify-content: space-around;
}

#topControls button,
#topSettings button {
    all: unset;
    display: inline-block;
    padding: 6px 14px;
    font-size: 14px;
    cursor: pointer;
    background-color: var(--bg-button);
    color: var(--color-muted);
    transition: background-color .2s, color .2s;
    text-align: center;
    user-select: none;
    font-weight: bold;
}

#topControls button:hover,
#topSettings button:hover {
    background-color: var(--bg-button-hover);
}

#topControls button.active {
    color: var(--color-accent);
}

#topControls button.stby {
    color: var(--color-inactive);
}

#dbContainer {
    position: relative;
    user-select: none;
}

#eqCanvas,
#bandControls,
#controls {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
}

#controls input[type="range"] {
    accent-color: var(--color-accent);
}

#gainValue {
    display: block;
    text-align: center;
    margin-top: 20px;
    font-size: 16px;
    color: var(--color-muted);
}

#powerButton {
    position: absolute;
    background-color: var(--bg-button);
    color: var(--color-muted);
    transition: background-color .2s, color .3s;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 25px;
    user-select: none;
}

#powerButton:hover {
    background-color: var(--bg-button-hover);
}

#powerButton.active {
    color: var(--color-accent);
}

/* ========== Gain slider/input ========== */
#gainSlider {
    height: 20px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--bg-button);
    cursor: pointer;
}

#gainSlider::-webkit-slider-thumb,
#gainSlider:disabled::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 40px;
    border-radius: 10%;
    background: var(--color-accent);
}

#gainSlider:disabled::-webkit-slider-thumb {
    background: var(--color-inactive);
}

#gainSlider::-moz-range-thumb,
#gainSlider:disabled::-moz-range-thumb {
    width: 20px;
    height: 40px;
    border-radius: 10%;
    background: var(--color-accent);
}

#gainSlider:disabled::-moz-range-thumb {
    background: var(--color-inactive);
}

#gainInput {
    background-color: var(--bg-button);
    border: 1px solid var(--border-color);
    color: var(--color-muted);
    text-align: center;
    font-size: 16px;
    border-radius: 5px;
}

#gainInput:focus {
    outline: 2px solid var(--color-accent);
}

/* ========== Overlays ========== */
#powerOverlay,
#connectionOverlay {
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    user-select: none;
    opacity: 0;
    transition: opacity .2s;
    z-index: 10;
    font-weight: bold;
}

#powerOverlay {
    top: 40%;
    font-size: 100px;
    color: var(--color-overlay);
}

#connectionOverlay {
    top: 30%;
    font-size: 50px;
    color: #9e0000;
}

#powerOverlay.active,
#connectionOverlay.active {
    opacity: .5;
}

/* ========== Settings buttons (IDs) ========== */
#openConstantsModal,
#downloadJSON,
#saveSettingsButton,
#resetConstantsButton,
#saveConstantsButton,
#confirmSaveButton {
    all: unset;
    display: inline-block;
    padding: 6px 14px;
    font-size: 16px;
    cursor: pointer;
    background-color: var(--bg-button);
    color: var(--color-muted);
    transition: background-color .2s, color .2s;
    text-align: center;
    user-select: none;
    font-weight: bold;
    border-radius: 5px;
}

#openConstantsModal:hover,
#downloadJSON:hover,
#saveSettingsButton:hover,
#resetConstantsButton:hover,
#saveConstantsButton:hover,
#confirmSaveButton:hover {
    background-color: var(--bg-button-hover);
}

/* ========== Forms/layout bits ========== */
.formRow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 8px 0;
}

.formRow label {
    flex: 1;
    text-align: left;
    font-weight: 500;
    margin-right: 10px;
}

.formRow input {
    flex: 2;
    padding: 6px;
    border-radius: 4px;
    border: 1px solid #ccc;
}

.buttonRow {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
    gap: 8px;
}

.rightButtons {
    display: flex;
    gap: 8px;
}

#settingsInfo {
    text-align: left;
    margin-top: 10px;
    font-size: 14px;
    color: var(--info-text);
}

/* ========== Modals (base) ========== */
#settingsModal,
#constantsModal,
#saveModal,
#loadModal {
    display: none;
    position: fixed;
    inset: 0;
    backdrop-filter: blur(5px);
    background-color: var(--modal-backdrop);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

#settingsModalContent,
#constantsModalContent,
#saveModalContent,
#loadModalContent {
    position: relative;
    background-color: var(--modal-bg);
    padding: 20px;
    border-radius: var(--radius);
    color: var(--color-text);
    min-width: 500px;
    max-width: 1000px;
}

#saveModalContent,
#loadModalContent {
    min-width: 300px;
}

#closeSettingsModal,
#closeConstantsModal,
#closeSaveModal,
#closeLoadModal {
    position: absolute;
    top: 10px;
    right: 10px;
    background: transparent;
    border: none;
    color: var(--color-text);
    font-size: 32px;
    cursor: pointer;
}

#closeSettingsModal:hover,
#closeConstantsModal:hover,
#closeSaveModal:hover,
#closeLoadModal:hover {
    color: var(--modal-hover);
}

#firebaseUrlInput,
#firebaseAuthInput,
#saveFileName {
    background-color: var(--bg-button);
    border: 1px solid var(--border-color);
    color: var(--color-muted);
    font-size: 20px;
    border-radius: 5px;
}

/* ========== Profile list ========== */
#profileList {
    max-height: 300px;
    overflow-y: auto;
    padding: 10px;
    margin: 0;
    list-style: none;
    scrollbar-width: 30px;
    scrollbar-color: var(--bg-button) var(--bg-panel);
}

#profileList li {
    background: var(--bg-button);
    color: var(--color-muted);
    padding: 10px 14px;
    margin: 6px 0;
    border-radius: 6px;
    cursor: pointer;
    border: 1px solid var(--border-color);
    position: relative;
    padding-right: 36px;
}

#profileList li:hover {
    background: var(--bg-button-hover);
}

#profileList::-webkit-scrollbar {
    width: 30px;
}

#profileList::-webkit-scrollbar-track {
    background: var(--bg-panel);
    border-radius: 5px;
}

#profileList::-webkit-scrollbar-thumb {
    background: var(--bg-button);
    border-radius: 5px;
}

#profileList::-webkit-scrollbar-thumb:hover {
    background: var(--bg-button-hover);
}

.profile-delete-btn {
  position: absolute;
  top: 50%;
  right: 10px;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  color: var(--color-text);
  font-size: 22px;   /* close buttons are 32px; smaller feels right in lists */
  cursor: pointer;
  line-height: 1;
}
.profile-delete-btn:hover { color: var(--modal-hover); }

/* ========== Info panels ========== */
#bandInfo {
    display: flex;
    justify-content: space-around;
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
}

#bottomInfo {
    position: relative;
    text-align: center;
    margin-top: 10px;
    font-size: 14px;
    color: var(--info-text);
}

/* ========== Lists & controls ========== */
.scrollList {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    overflow-y: auto;
    z-index: 1;
}

.listItem {
    padding: 8px 10px;
    margin-bottom: 5px;
    background: var(--bg-button);
    color: var(--color-text);
    user-select: none;
    cursor: pointer;
}

.bandLabel {
    font-weight: bold;
    color: var(--color-muted);
}

.gainInput,
.freqInput,
.qInput {
    width: 60px;
    background-color: var(--bg-button);
    border: 1px solid var(--border-color);
    color: var(--color-muted);
    text-align: center;
    font-size: 16px;
    border-radius: 5px;
}

.gainInput:focus,
.freqInput:focus,
.qInput:focus {
    outline: 2px solid var(--color-accent);
    z-index: 2;
}

.inputSliderRow {
    color: var(--color-muted);
    display: flex;
    align-items: center;
    gap: 5px;
}

.controlRow label {
    width: 40px;
    cursor: pointer;
}

.gainSlider,
.freqSlider,
.qSlider {
    flex: 1;
    cursor: pointer;
}

.listItem.highlighted {
    background-color: var(--color-highlight);
    border-left: 3px solid var(--color-accent);
}

.listItem.inactive {
    opacity: .5;
    pointer-events: none;
}

.scrollList .listItem span,
.scrollList .listItem label {
    user-select: none;
}

/* ========== Toasts ========== */
#toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    color: #fff;
    padding: 12px 20px;
    border-radius: 6px;
    font-size: 16px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, .2);
    opacity: 0;
    transform: translateY(-20px);
    transition: all .4s ease;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast.success {
    background-color: #28a745;
}

.toast.error {
    background-color: #dc3545;
}

/* ========== Connection status ========== */
#connectionStatus {
    position: fixed;
    bottom: 15px;
    left: 20px;
    font-size: 14px;
    color: #ccc;
    background: rgba(0, 0, 0, .5);
    padding: 6px 12px;
    border-radius: 8px;
    border: 1px solid #444;
    z-index: 2000;
    font-family: monospace;
    transition: color .3s, background-color .3s;
}

#connectionStatus.connected {
    color: #00ff88;
    background-color: rgba(0, 80, 0, .5);
}

#connectionStatus.disconnected {
    color: #ff4444;
    background-color: rgba(80, 0, 0, .5);
}

/* ========== Inputs theme ========== */
input[type="number"],
input[type="text"],
input[type="range"] {
    background-color: var(--bg-button);
    border: 1px solid var(--border-color);
    color: var(--color-text);
    border-radius: 5px;
    text-align: center;
    font-size: 14px;
}

input[type="number"]:focus,
input[type="text"]:focus {
    outline: 2px solid var(--color-accent);
    z-index: 2;
}

input[type="number"]:hover,
input[type="text"]:hover {
    background-color: var(--bg-button-hover);
}

/* ========== Modal Performance Patch (kept) ========== */
#settingsModal,
#saveModal,
#loadModal {
    backdrop-filter: none !important;
    background-color: rgba(0, 0, 0, 0.55) !important;
}

#constantsModal {
    backdrop-filter: none !important;
    background-color: rgba(0, 0, 0, 0) !important;
}