/* ===== STUDIO PAGE STYLES - REDESIGNED ===== */

.studio-container {
    display: grid;
    grid-template-columns: 1fr 250px;
    grid-template-rows: auto auto 1fr;
    grid-template-areas:
        "header header"
        "canvas tools"
        "footer footer";
    gap: 1rem;
    min-height: calc(100vh - 120px);
    padding: 70px 2rem 0;
    max-width: 1400px;
    margin: 0 auto;
}

/* Top Section with Canvas Controls - ИСПРАВЛЕННАЯ СТРУКТУРА */
.studio-top-section {
    grid-area: header;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    position: relative;
}

/* ASCII Studio Logo - ВЫРАВНИВАЕМ ПО ЦЕНТРУ ОБЛАСТИ CANVAS */
.studio-ascii-logo {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px; /* Увеличен с 8px до 10px */
    line-height: 1;
    color: #FFFFFF;
    margin: 0;
    padding: 0;
    white-space: pre;
    user-select: none;
    /* Рассчитываем позицию: 50% минус половина ширины панели инструментов */
    position: absolute;
    left: calc(50% - 125px); /* 125px = половина от 250px (ширина панели инструментов) */
    transform: translateX(-50%);
}

/* Canvas Controls */
.canvas-controls-right {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}

.control-btn {
    padding: 6px 12px;
    border-radius: 4px;
    border: 1px solid #444;
    background: rgba(40, 40, 40, 0.95);
    color: #ccc;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.2s ease;
    font-family: 'Silkscreen', monospace;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.control-btn:hover {
    border-color: #666;
    background: rgba(60, 60, 60, 0.95);
}

.control-btn.red {
    background: #8B0000;
    color: white;
    border-color: #8B0000;
}

.control-btn.red:hover {
    background: #A00000;
    border-color: #A00000;
}

.control-btn.green {
    background: #006400;
    color: white;
    border-color: #006400;
}

.control-btn.green:hover {
    background: #008000;
    border-color: #008000;
}

.control-btn.active-green {
    background: #008000 !important;
    color: white !important;
    border-color: #00ff00 !important;
}

/* Spacer between Undo and Copy */
.control-spacer {
    width: 30px;
    display: inline-block;
}

/* ===== UPDATED CANVAS DESIGN - ДИНАМИЧЕСКАЯ СЕТКА ===== */

.main-canvas-area {
    grid-area: canvas;
    display: flex;
    flex-direction: column;
    margin-top: 0;
}

/* Outer Frame - простая непрозрачная рамка */
.canvas-outer-frame {
    border: 2px solid #333;
    border-radius: 4px;
    background: #000000;
    padding: 15px;
    position: relative;
    box-shadow: none;
    width: fit-content;
    height: fit-content;
    margin: 0 auto;
}

/* Inner Frame - динамический размер под сетку */
.canvas-inner-frame {
    border: 1px solid #444;
    border-radius: 2px;
    background: #000000;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: auto;
    position: relative;
    isolation: isolate;
    z-index: 1;
    box-sizing: border-box;
}

.canvas-inner-frame.grid-enabled {
    background-color: #000000;
}

/* Сетка с динамическими размерами */
.canvas-grid {
    display: grid;
    gap: 0;
    background: transparent;
    position: relative;
    z-index: 2;
    width: fit-content;
    height: fit-content;
}

/* Ячейки сетки */
.grid-cell {
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: #fff;
    background: transparent;
    cursor: pointer;
    user-select: none;
    transition: background 0.1s ease, border-color 0.2s ease;
    position: relative;
    /* Фиксированный размер ячейки 16×16px по умолчанию */
    width: 16px;
    height: 16px;
    min-width: 16px;
    min-height: 16px;
    /* Граница по умолчанию прозрачная */
    border: 1px solid transparent;
}

/* Граница видна только когда включена сетка */
.grid-cell.grid-border {
    border-color: #333;
}

/* При наведении - минимальная подсветка */
.grid-cell:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* При наведении с включенной сеткой */
.grid-cell.grid-border:hover {
    border-color: #555;
}

/* Активная ячейка */
.grid-cell.active {
    outline: 1px solid #666;
}

/* Активная ячейка с сеткой */
.grid-cell.active.grid-border {
    border-color: #00ff00 !important;
}

/* Индикатор размера холста */
.canvas-size-indicator {
    position: absolute;
    bottom: 5px;
    right: 5px;
    color: #666;
    font-size: 0.7rem;
    font-family: 'Silkscreen', monospace;
    background: rgba(0, 0, 0, 0.9);
    padding: 2px 6px;
    border-radius: 3px;
    border: 1px solid #333;
}

/* ===== TOOLS PANEL ===== */
.tools-panel {
    grid-area: tools;
    background: rgba(20, 20, 20, 0.95);
    border: 2px solid #333;
    border-radius: 4px;
    padding: 1rem;
    height: fit-content;
    font-family: 'Silkscreen', monospace;
    z-index: 10;
    margin-top: 0;
    align-self: start;
}

.panel-section {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #333;
}

.panel-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.panel-title {
    color: #00ff00;
    font-size: 0.8rem;
    margin-bottom: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: 'Silkscreen', monospace;
}

/* Tools buttons */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
}

.tool-btn {
    background: rgba(40, 40, 40, 0.95);
    border: 1px solid #444;
    color: #ccc;
    padding: 8px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.8rem;
    font-family: 'Silkscreen', monospace;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tool-btn:hover {
    border-color: #00ff00;
    color: #00ff00;
    background: rgba(0, 255, 0, 0.1);
}

.tool-btn.active {
    border-color: #00ff00;
    color: #00ff00;
    background: rgba(0, 255, 0, 0.2);
}

/* Characters grid */
.chars-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 5px;
    margin-bottom: 1rem;
}

.char-cell {
    background: rgba(30, 30, 30, 0.95);
    border: 1px solid #444;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    color: #ffffff;
    font-family: 'JetBrains Mono', monospace;
}

.char-cell:hover {
    border-color: #00ff00;
    transform: scale(1.1);
    background: rgba(0, 255, 0, 0.1);
}

.char-cell.selected {
    border-color: #00ff00;
    background: rgba(0, 255, 0, 0.2);
    color: #00ff00;
}

.custom-char {
    display: flex;
    gap: 6px;
}

#custom-char-input {
    width: 140px;
    background: rgba(30, 30, 30, 0.95);
    border: 1px solid #444;
    color: white;
    padding: 6px;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    text-align: center;
    font-size: 0.9rem;
}

#add-char-btn {
    background: #00ff00;
    color: black;
    border: none;
    width: 50px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    font-family: 'Silkscreen', monospace;
    font-size: 0.9rem;
    flex-shrink: 0;
}

#add-char-btn:hover {
    background: #00cc00;
}

/* Settings */
.settings-group {
    margin-bottom: 0.8rem;
}

.settings-group label {
    display: block;
    color: #888;
    font-size: 0.75rem;
    margin-bottom: 4px;
    font-family: 'Silkscreen', monospace;
}

.size-controls {
    display: flex;
    align-items: center;
    gap: 6px;
}

.size-controls input {
    width: 55px;
    background: rgba(30, 30, 30, 0.95);
    border: 1px solid #444;
    color: white;
    padding: 5px;
    border-radius: 4px;
    text-align: center;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
}

#resize-btn {
    background: #444;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.75rem;
    font-family: 'Silkscreen', monospace;
    transition: all 0.2s ease;
}

#resize-btn:hover {
    background: #555;
}

/* Toggle switch */
.switch {
    position: relative;
    display: inline-block;
    width: 45px;
    height: 22px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #444;
    transition: .4s;
    border-radius: 22px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: #00ff00;
}

input:checked + .slider:before {
    transform: translateX(23px);
}

/* ===== STUDIO FOOTER ===== */
.studio-footer {
    grid-area: footer;
    position: relative;
    background-color: #000000;
    padding: 1.5rem 0 2rem;
    margin-top: 2rem;
    width: 100vw;
    left: 50%;
    margin-left: -50vw;
    box-sizing: border-box;
}

.studio-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background-color: #333;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ===== RESPONSIVE UPDATES ===== */

@media (max-width: 1200px) {
    .studio-container {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto auto;
        grid-template-areas:
            "header"
            "canvas"
            "tools"
            "footer";
        padding: 50px 1rem 0;
        gap: 0.8rem;
    }

    .studio-top-section {
        flex-direction: column;
        justify-content: center;
        gap: 1rem;
    }

    .studio-ascii-logo {
        position: static;
        left: auto;
        transform: none;
        order: 1;
        font-size: 9px; /* Немного уменьшен для адаптивной версии */
    }

    .canvas-controls-right {
        margin-left: 0;
        justify-content: center;
        flex-wrap: wrap;
        gap: 6px;
        order: 2;
    }

    .tools-panel {
        margin-top: 1rem;
        align-self: stretch;
        padding: 0.8rem;
    }

    .canvas-outer-frame {
        padding: 15px;
        width: 100%;
        max-width: 960px;
        margin: 0 auto;
        box-sizing: border-box;
    }

    .canvas-inner-frame {
        padding: 0;
        min-height: auto;
        min-width: auto;
        width: 100%;
        max-width: 960px;
        box-sizing: border-box;
    }
}

@media (max-width: 1024px) {
    .canvas-outer-frame {
        padding: 10px;
        max-width: 100%;
        overflow: auto;
    }

    .canvas-inner-frame {
        min-width: auto;
        width: 100%;
        min-height: auto;
        overflow: auto;
    }
}

@media (max-width: 768px) {
    .studio-container {
        padding: 50px 0.5rem 0;
        gap: 0.5rem;
    }

    .studio-top-section {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }

    .studio-ascii-logo {
        position: static;
        left: auto;
        transform: none;
        font-size: 8px; /* Немного уменьшен для мобильной версии */
    }

    .canvas-controls-right {
        margin-left: 0;
        justify-content: center;
        flex-wrap: wrap;
        gap: 4px;
    }

    .control-btn {
        font-size: 0.75rem;
        padding: 5px 10px;
    }

    .control-spacer {
        width: 15px;
    }

    .canvas-outer-frame {
        padding: 8px;
        max-width: 100%;
        overflow: auto;
    }

    .canvas-inner-frame {
        padding: 0;
        min-height: auto;
        min-width: auto;
        overflow: auto;
    }

    /* Для мобильных уменьшаем размер ячеек */
    .grid-cell {
        width: 12px;
        height: 12px;
        min-width: 12px;
        min-height: 12px;
        font-size: 10px;
    }
}

@media (max-width: 480px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }

    .chars-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .canvas-outer-frame {
        padding: 5px;
    }

    .canvas-inner-frame {
        min-height: auto;
    }

    /* Для очень маленьких экранов */
    .grid-cell {
        width: 10px;
        height: 10px;
        min-width: 10px;
        min-height: 10px;
        font-size: 9px;
    }
}