/* Force GPU acceleration to reduce jagged pixel-snapping */
    transform: translateZ(0);
}

.btn-settings:hover,
.btn-settings.active {
    color: var(--text);
    background: rgba(255, 255, 255, 0.08);
}

.btn-settings:hover svg,
.btn-settings.active svg {
    animation: spinGear 3s linear infinite;
}

@keyframes spinGear {
    from {
        transform: translateZ(0) rotate(0deg);
    }

    to {
        transform: translateZ(0) rotate(360deg);
    }
}

.btn-generate-chat {
    background: #ffffff;
    color: #101010;
    border: 1px solid rgba(255, 255, 255, 0.75);
    border-radius: 12px;
    width: 100%;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.8rem 1rem;
    font-family: var(--font-body);
    font-size: 0.98rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    cursor: pointer;
    opacity: 1;
    filter: brightness(1) saturate(1);
    transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, opacity 0.24s ease, filter 0.28s ease;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.28);
}

.btn-generate-chat:not(:disabled) {
    animation: generateWarmOn 0.34s cubic-bezier(0.22, 1, 0.36, 1);
}

.btn-generate-chat:hover:not(:disabled) {
    background: #f1f1f1;
    transform: translateY(-1px);
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.34);
}

.btn-generate-chat:disabled {
    opacity: 0.72;
    cursor: not-allowed;
    background: #ffffff !important;
    color: #111111 !important;
    border-color: rgba(255, 255, 255, 0.74) !important;
    filter: brightness(0.88) saturate(0.9);
    transform: none !important;
    box-shadow: none !important;
}

.btn-generate-label {
    line-height: 1;
}

@keyframes generateWarmOn {
    0% {
        filter: brightness(0.88) saturate(0.9);
    }

    62% {
        filter: brightness(1.06) saturate(1.04);
    }

    100% {
        filter: brightness(1) saturate(1);
    }
}

@media (prefers-reduced-motion: reduce) {
    .btn-generate-chat:not(:disabled) {
        animation: none;
    }
}

@property --neon-spin {
    syntax: '<angle>';
    initial-value: 0deg;
    inherits: false;
}

@keyframes neonBorderSpin {
    to {
        --neon-spin: 360deg;
    }
}

@keyframes neonInputPulse {

    0%,
    100% {
        box-shadow: 0 0 0 1px rgba(0, 102, 255, 0.15), 0 0 15px rgba(0, 102, 255, 0.12);
    }

    50% {
        box-shadow: 0 0 0 1.5px rgba(0, 102, 255, 0.25), 0 0 30px rgba(0, 102, 255, 0.2);
    }
}

@keyframes heroGlow {

    0%,
    100% {
        text-shadow: 0 0 0 rgba(0, 102, 255, 0);
    }

    50% {
        text-shadow: 0 0 14px rgba(0, 102, 255, 0.12);
    }
}

.loader-icon {
    animation: spin 1s linear infinite;
    color: currentColor;
}

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

/* Settings Panel */
.settings-panel {
    background: rgba(24, 24, 24, 0.7);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 1.5rem 2rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);

    /* Animation origin from the gear icon location roughly */
    transform-origin: top left;
    animation: scaleInOrigin 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.settings-panel.hidden {
    display: none;
}

.settings-panel.closing {
    animation: scaleOutOrigin 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes scaleInOrigin {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-5px);
    }

    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes scaleOutOrigin {
    from {
        opacity: 1;
        transform: scale(1) translateY(0);
    }

    to {
        opacity: 0;
        transform: scale(0.95) translateY(-5px);
    }
}

.settings-layout-modern {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 2.5rem;
}

@media (max-width: 900px) {
    .settings-layout-modern {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.settings-modern-col {
    display: flex;
    flex-direction: column;
}

.settings-section-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    color: var(--muted);
    margin: 0 0 0.8rem 0.8rem;
}

.settings-modern-card {
    background: rgba(10, 12, 20, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.settings-modern-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.1rem 1.4rem;
}

.settings-modern-row label {
    font-family: var(--font-display);
    font-weight: 500;
    color: var(--text);
    font-size: 0.95rem;
}

.settings-modern-input-row {
    display: grid;
    grid-template-columns: 100px 1fr;
    align-items: center;
    padding: 0 1.4rem;
    transition: background 0.2s ease;
}

.settings-modern-input-row:focus-within {
    background: rgba(255, 255, 255, 0.03);
}

.settings-modern-input-row label {
    font-family: var(--font-display);
    font-weight: 500;
    color: var(--muted);
    font-size: 0.9rem;
}

.settings-modern-input-row input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    padding: 1.1rem 0;
    width: 100%;
}

.settings-modern-input-row input::placeholder {
    color: rgba(255, 255, 255, 0.25);
    font-style: normal;
}

/* Fix browser auto-fill background styles overriding transparent inputs */
.settings-modern-input-row input:-webkit-autofill,
.settings-modern-input-row input:-webkit-autofill:hover,
.settings-modern-input-row input:-webkit-autofill:focus,
.settings-modern-input-row input:-webkit-autofill:active {
    transition: background-color 5000s ease-in-out 0s;
    -webkit-text-fill-color: var(--text) !important;
}

.settings-modern-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.05);
    margin: 0 1.4rem;
}

.settings-textarea-borderless {
    width: 100%;
    background: transparent;
    border: none;
    outline: none;
    padding: 1.4rem;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    resize: none;
    min-height: 15rem;
}

.settings-textarea-borderless::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

/* Error msg */
.error-msg {
    display: none;
    color: #ff5b5b;
    font-size: 0.85rem;
    margin-top: -0.5rem;
}

#tema-error {
    margin-top: 5px;
    text-align: center;
}

.error-msg.visible {
    display: block;
}

@keyframes stepSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ================================================================
   BUTTON GROUPS (reused in wizard)
   ================================================================ */
.button-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.option-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--muted);
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s ease;
}

.option-btn:hover {
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--text);
    transform: translateY(-1px);
}

.option-btn.active {
    background-color: var(--accent);
    border-color: var(--accent);
    color: white;
    transform: scale(1.02);
}

/* ================================================================
   COLOR PICKER
   ================================================================ */
.color-picker-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
}

.preset-colors {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.color-circle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.25s ease;
}

.color-circle:hover {
    transform: scale(1.15);
}

.color-circle.selected {
    outline: 2px solid white;
    outline-offset: 3px;
    transform: scale(1.1);
}

/* Custom color trigger — RGB rounded square + plus icon */
.color-custom-trigger {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    cursor: pointer;
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 0.35rem 0.65rem 0.35rem 0.35rem;
    border-radius: 14px;
    transition: all 0.2s ease;
}

.color-custom-trigger:hover {
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.03);
}

.color-custom-trigger.selected {
    border-color: var(--accent);
    background: rgba(255, 255, 255, 0.05);
}

.color-custom-border {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    /* Inner square with rounded corners */
    padding: 2px;
    background: linear-gradient(135deg, #6366f1, #ec4899, #f97316, #eab308, #10b981, #06b6d4, #8b5cf6, #6366f1);
    background-size: 300% 300%;
    animation: gradientShift 6s ease infinite;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.color-custom-inner {
    width: 100%;
    height: 100%;
    border-radius: 6px;
    background: var(--surface);
    transition: background 0.2s ease;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.color-custom-plus {
    font-size: 1.4rem;
    font-weight: 300;
    color: var(--muted);
    line-height: 1;
    transition: all 0.3s ease;
}

.color-custom-trigger:hover .color-custom-plus {
    color: var(--text);
    transform: rotate(90deg) scale(1.1);
}

.color-custom-trigger:hover .color-custom-border {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.color-custom-trigger.selected .color-custom-border {
    box-shadow: 0 0 12px rgba(255, 255, 255, 0.3);
}

/* Beautiful Custom RGB/Hex Picker Popup */
.custom-picker-popup {
    position: absolute;
    left: 0;
    bottom: calc(100% + 0.75rem);
    background: rgba(20, 21, 38, 0.95);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 1.25rem;
    width: 280px;
    z-index: 50;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    animation: pickerFadeIn 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform-origin: bottom left;
}

.custom-picker-popup.hidden {
    display: none !important;
    animation: none;
}

@keyframes pickerFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.picker-hue-bar {
    width: 100%;
    height: 16px;
    border-radius: 8px;
    background: linear-gradient(to right,
            hsl(0, 85%, 55%), hsl(60, 85%, 55%), hsl(120, 85%, 55%),
            hsl(180, 85%, 55%), hsl(240, 85%, 55%), hsl(300, 85%, 55%),
            hsl(360, 85%, 55%));
    cursor: pointer;
    position: relative;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

.picker-hue-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 3px solid white;
    background: var(--accent);
    position: absolute;
    top: 50%;
    left: 60%;
    transform: translate(-50%, -50%);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    pointer-events: none;
    transition: left 0.05s ease;
}

.picker-inputs {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.picker-hex-layer {
    display: flex;
    align-items: center;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 0.35rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.picker-color-disc {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    background: var(--accent);
    margin-right: 0.75rem;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.picker-hex-input {
    flex: 1;
    background: transparent;
    border: none;
    color: white;
    font-family: var(--font-body);
    font-size: 1.05rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    outline: none;
    font-weight: 500;
}

.picker-rgb-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.rgb-col {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.rgb-col input {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.05);
    color: white;
    padding: 0.4rem 0;
    text-align: center;
    border-radius: 6px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color 0.2s;
    outline: none;
    -moz-appearance: textfield;
    appearance: textfield;
}

.rgb-col input::-webkit-outer-spin-button,
.rgb-col input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.rgb-col input:focus {
    border-color: var(--accent);
}

.rgb-col label {
    font-size: 0.75rem;
    color: var(--muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}