:root {
    --ui-bg-base: #0A0A0A;
    --ui-bg-panel: #141414;
    --ui-border: #2A2A2A;
    --ui-text-main: #FFFFFF;
    --ui-text-muted: #888888;

    /* Brand Accent - Yellow Neon */
    --ui-accent: #D4FF00;
    --ui-accent-hover: #E2FF4D;
    --ui-accent-dark: #A9CC00;

    --ui-radius-sm: 8px;
    --ui-radius-md: 12px;
    --ui-radius-lg: 24px;

    /* Creative Variables injected by JS */
    --canvas-primary: #0A0A0A;
    --canvas-secondary: #1A1A1A;
    --canvas-accent: #D4FF00;
    --canvas-text: #FFFFFF;
    --canvas-text-muted: #A3A3A3;
    --canvas-bg-img: url('');

    /* Configuration variables */
    --canvas-width: 1080px;
    --canvas-height: 1080px;
    --canvas-scale: 1;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
    /* Padrão da UI */
}

/* Custom Scrollbar (Webkit) */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

body {
    background-color: var(--ui-bg-base);
    color: var(--ui-text-main);
    overflow: hidden;
    /* App-like feel */
}

.app-layout {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* =========================================
   SIDEBAR / BOTTOM SHEET CONTROLS
   ========================================= */
.controls-panel {
    background-color: var(--ui-bg-panel);
    border-right: 1px solid var(--ui-border);
    display: flex;
    flex-direction: column;
    z-index: 10;
}

.panel-section {
    padding: 32px 24px;
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.panel-header h2 {
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.badge {
    background: rgba(212, 255, 0, 0.1);
    color: var(--ui-accent);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.subtitle {
    color: var(--ui-text-muted);
    font-size: 0.9rem;
}

.hidden {
    display: none !important;
}

.panel-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--ui-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--ui-text-muted);
}

/* Inputs & Forms */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: #ccc;
}

input,
textarea {
    background: #0A0A0A;
    border: 1px solid var(--ui-border);
    color: var(--ui-text-main);
    padding: 12px 16px;
    border-radius: var(--ui-radius-sm);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
    resize: none;
}

input:focus,
textarea:focus {
    border-color: #555;
}

input::placeholder,
textarea::placeholder {
    color: #555;
}

/* Minimalist Textarea (Meta AI inspired) */
textarea.progressive-input {
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--ui-border);
    border-radius: 0;
    padding: 12px 0;
    font-size: 1rem;
    color: var(--ui-text-main);
    transition: border-color 0.3s ease;
    resize: vertical;
    min-height: 48px;
    max-height: 200px;
}

textarea.progressive-input:focus {
    border-bottom-color: var(--ui-accent);
}

textarea.progressive-input::placeholder {
    color: #666;
    font-weight: 300;
}

/* Segmented Control / Chips for Logo */
.chips-group {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.chip-btn {
    flex: 1;
    background: var(--ui-bg-base);
    border: 1px solid var(--ui-border);
    color: var(--ui-text-muted);
    padding: 10px 16px;
    border-radius: 24px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s ease;
    text-align: center;
}

.chip-btn.active {
    background: transparent;
    border-color: var(--ui-accent);
    color: var(--ui-accent);
    box-shadow: inset 0 0 0 1px var(--ui-accent);
}

/* Gear Icon Header */
.gear-link {
    color: var(--ui-text-muted);
    transition: color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: 50%;
}

.gear-link:hover {
    color: var(--ui-text-main);
    background: rgba(255, 255, 255, 0.05);
}

/* Aspect Ratio Toggle (Pílula) */
.controls-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: #ccc;
    margin-bottom: 8px;
    display: block;
}

.aspect-ratio-toggle {
    display: flex;
    background: #0A0A0A;
    border: 1px solid var(--ui-border);
    border-radius: 30px;
    padding: 4px;
    gap: 4px;
}

.toggle-btn {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--ui-text-muted);
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.toggle-btn.active {
    background: var(--ui-border);
    color: var(--ui-text-main);
}

/* Upload Area UI */
.upload-area {
    border: 1px dashed var(--ui-border);
    border-radius: var(--ui-radius-sm);
    padding: 24px;
    text-align: center;
    color: var(--ui-text-muted);
    cursor: pointer;
    background: #0A0A0A;
    transition: border-color 0.2s, background 0.2s;
}

.upload-area:hover {
    border-color: #555;
    background: #111;
}

.upload-area span {
    font-size: 0.85rem;
}

/* Buttons */
.btn {
    padding: 14px 24px;
    border: none;
    border-radius: var(--ui-radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: #FFFFFF;
    color: #000000;
}

.btn-primary:hover {
    background: #E0E0E0;
}

.btn-accent {
    background: var(--ui-accent);
    color: #000000;
}

.btn-accent:hover {
    background: var(--ui-accent-hover);
}

.btn-accent:disabled {
    background: var(--ui-accent-dark);
    cursor: not-allowed;
    opacity: 0.7;
}

.btn-text {
    background: transparent;
    color: var(--ui-text-muted);
    padding: 8px;
}

.btn-text:hover {
    color: var(--ui-text-main);
}

.error-msg {
    color: #FF4D4D;
    font-size: 0.85rem;
    text-align: center;
    min-height: 20px;
}

/* Loader */
.loader {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(0, 0, 0, 0.2);
    border-top-color: #000;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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


/* =========================================
   MAIN VIEW: CANVAS AREA
   ========================================= */
.canvas-area {
    flex: 1;
    position: relative;
    background: radial-gradient(circle at center, #1a1a1a 0%, #050505 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

/* O wrapper lida com a escala dinâmica */
.canvas-wrapper {
    position: relative;
    width: var(--canvas-width);
    height: var(--canvas-height);
    transform: scale(var(--canvas-scale));
    transform-origin: center center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.4);
}

/* O box em si é onde as classes do template (A Regra de Ouro) vão atuar */
.canvas-box {
    width: 100%;
    height: 100%;
    background-color: var(--canvas-primary);
    background-image: var(--canvas-bg-img);
    background-size: cover;
    background-position: center;
    overflow: hidden;
    position: relative;
    display: flex;
    /* Flexbox nativo para organizar os elementos dos templates */
}

/* Empty State visual */
.empty-state {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: rgba(255, 255, 255, 0.2);
    border: 2px dashed rgba(255, 255, 255, 0.1);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
}


/* Template 1: Focus Center (Text grouped at bottom with dark gradient protection) */
.template-focus-center {
    flex-direction: column;
    justify-content: flex-end;
    /* Elementos para baixo */
}

.template-focus-center::after {
    /* Gradiente de proteção escuro padrão do marketing */
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0) 100%);
    z-index: 1;
}

.template-focus-center .content-layer {
    z-index: 2;
    padding: 8%;
    display: flex;
    flex-direction: column;
    gap: 2%;
    /* Baseado na altura do próprio canvas */
    text-align: center;
    align-items: center;
}

/* Template 2: Split Solid (50% BG Image, 50% Solid Primary Box) */
.template-split-solid {
    flex-direction: column;
    justify-content: flex-end;
    /* A box de texto fica no final */
}

.template-split-solid .content-layer {
    z-index: 2;
    background-color: var(--canvas-primary);
    height: 50%;
    width: 100%;
    padding: 8%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 3%;
    border-top: 5px solid var(--canvas-accent);
}

/* Template 3: Glass Overlay (Centered floating card with blur) */
.template-glass-overlay {
    align-items: center;
    justify-content: center;
}

.template-glass-overlay .content-layer {
    z-index: 2;
    background: rgba(10, 10, 10, 0.4);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 32px 64px rgba(0, 0, 0, 0.3);
    border-radius: 40px;
    padding: 8%;
    width: 85%;
    display: flex;
    flex-direction: column;
    gap: 4%;
}

/* Estilização Geral de Texto nos Templates */
.tpl-logo {
    max-width: 40%;
    max-height: 8cqi;
    object-fit: contain;
    margin-bottom: 2%;
    align-self: flex-start;
}

.template-focus-center .tpl-logo {
    align-self: center;
}

.tpl-headline {
    color: var(--canvas-text);
    font-size: clamp(2rem, 5cqi, 5rem);
    /* container query units magic */
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.tpl-body {
    color: var(--canvas-text-muted);
    font-size: clamp(1rem, 2.5cqi, 2rem);
    line-height: 1.4;
    max-width: 90%;
}

.tpl-bullets {
    display: flex;
    flex-direction: column;
    gap: 1%;
    margin-top: 2%;
    margin-bottom: 2%;
    text-align: left;
}

.tpl-bullet-item {
    color: var(--canvas-text);
    font-size: clamp(1rem, 2cqi, 1.8rem);
    font-weight: 500;
}

.tpl-cta {
    background-color: var(--canvas-accent);
    color: #000;
    /* Contrast rule */
    padding: 3% 6%;
    border-radius: 100px;
    font-size: clamp(1rem, 2.5cqi, 2rem);
    font-weight: 700;
    text-transform: uppercase;
    display: inline-block;
    align-self: flex-start;
}

.template-focus-center .tpl-cta {
    align-self: center;
    /* Override para o center */
}


/* Mobile "Bottom Sheet" Layout */
@media (max-width: 767px) {
    .app-layout {
        flex-direction: column;
    }

    .canvas-area {
        height: 45vh;
        flex: none;
    }

    .controls-panel {
        height: 55vh;
        border-right: none;
        box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.5);
        border-top-left-radius: var(--ui-radius-lg);
        border-top-right-radius: var(--ui-radius-lg);
        transform: translateY(-20px);
        /* Sobrepõe levemente o canvas */
    }

    /* Ajuste para não cortar conteúdo rolável do painel */
    .panel-section {
        padding-bottom: 80px;
    }
}

/* Desktop "Split View" Layout */
@media (min-width: 768px) {
    .controls-panel {
        width: 380px;
        flex: none;
    }

    .canvas-area {
        height: 100vh;
    }
}

/* Container Queries nativo para os templates auto-escalarem a fonte baseado na largura do box real */
.canvas-box {
    container-type: inline-size;
}