:root {
    --bg-dark: #0f172a;
    --card-bg: #1e293b;
    --accent-blue: #3b82f6;
    --accent-emerald: #10b981;
    --text-light: #f8fafc;
    --text-muted: #94a3b8;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-light);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.studio-layout {
    display: grid;
    grid-template-columns: 480px 1fr;
    gap: 30px;
    margin-top: 20px;
}

@media (max-width: 1024px) {
    .studio-layout {
        grid-template-columns: 1fr;
    }
}

/* Sol Panel */
.editor-panel {
    background-color: var(--card-bg);
    border: 1px solid #334155;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    height: 85vh;
    overflow-y: auto;
}

.section-block {
    border-bottom: 1px solid #334155;
    padding-bottom: 20px;
    margin-bottom: 20px;
}

.section-block h3 {
    margin: 0 0 15px 0;
    font-size: 14px;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    font-size: 11px;
    font-weight: bold;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 10px 12px;
    background-color: var(--bg-dark);
    border: 1px solid #475569;
    border-radius: 6px;
    color: var(--text-light);
    font-size: 13.5px;
    box-sizing: border-box;
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--accent-blue);
    outline: none;
}

/* Dinamik Paylaşım Kartı Düzenleyicisi */
.portfolio-item-card {
    background-color: var(--bg-dark);
    border: 1px solid #334155;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 12px;
}

.portfolio-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    border-bottom: 1px dashed #334155;
    padding-bottom: 8px;
}

.portfolio-item-header span {
    font-size: 12px;
    font-weight: bold;
    color: var(--accent-emerald);
}

.btn-delete {
    background: #ef4444;
    color: white;
    border: none;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    cursor: pointer;
}

.btn-action {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 6px;
    font-weight: bold;
    font-size: 14px;
    cursor: pointer;
    margin-bottom: 12px;
    transition: opacity 0.2s;
    text-transform: uppercase;
}

.btn-emerald { background: linear-gradient(45deg, #10b981, #059669); color: white; }
.btn-blue { background: linear-gradient(45deg, #3b82f6, #1d4ed8); color: white; }

/* Sağ Canlı Önizleme */
.preview-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.device-switcher {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    background-color: var(--card-bg);
    padding: 6px;
    border-radius: 8px;
    border: 1px solid #334155;
}

.switch-btn {
    padding: 8px 16px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
    border-radius: 6px;
}

.switch-btn.active {
    background-color: var(--accent-blue);
    color: white;
}

.preview-viewport {
    border: 4px solid #334155;
    border-radius: 16px;
    overflow: hidden;
    background-color: #000;
    transition: width 0.3s ease;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.viewport-mobile { width: 360px; height: 680px; }
.viewport-tablet { width: 640px; height: 800px; }
.viewport-pc { width: 100%; min-height: 700px; }

.preview-iframe-wrapper {
    width: 100%;
    height: 100%;
    background-color: var(--bg-dark);
}

.guide-section {
    margin-top: 40px;
    background-color: rgba(30, 41, 59, 0.5);
    border: 1px dashed #475569;
    border-radius: 12px;
    padding: 25px;
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 15px;
}

.guide-card {
    background-color: var(--card-bg);
    padding: 15px;
    border-radius: 8px;
    border: 1px solid #334155;
}

/* === LIGHT THEME OVERRIDES (AÇIK TEMA DÜZELTMELERİ) === */
body.light-theme {
    background-color: #f1f5f9;
    color: #0f172a;
}

body.light-theme .editor-panel {
    background-color: #ffffff;
    border-color: #cbd5e1;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
}

body.light-theme .section-block {
    border-bottom-color: #e2e8f0;
}

body.light-theme .form-group label {
    color: #475569;
}

body.light-theme .form-group input,
body.light-theme .form-group textarea {
    background-color: #f8fafc;
    border-color: #cbd5e1;
    color: #0f172a;
}

body.light-theme .portfolio-item-card {
    background-color: #f8fafc;
    border-color: #cbd5e1;
}

body.light-theme .portfolio-item-header {
    border-bottom-color: #cbd5e1;
}

body.light-theme .device-switcher {
    background-color: #ffffff;
    border-color: #cbd5e1;
}

body.light-theme .switch-btn {
    color: #64748b;
}

body.light-theme .switch-btn.active {
    color: #ffffff;
}

body.light-theme .preview-viewport {
    border-color: #cbd5e1;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.1);
}

body.light-theme .guide-section {
    background-color: #ffffff;
    border-color: #cbd5e1;
}

body.light-theme .guide-card {
    background-color: #f8fafc;
    border-color: #e2e8f0;
}

/* === MOBIL 5-6 INC CİHAZ ESNEKLİK REFORMU === */
@media (max-width: 480px) {
    .studio-layout {
        grid-template-columns: 1fr !important;
        gap: 15px !important;
    }
    .editor-panel {
        height: auto !important;
        max-height: none !important;
        padding: 15px !important;
    }
    .preview-viewport {
        width: 100% !important;
        max-width: 360px !important;
        height: 580px !important;
    }
    .container {
        padding: 10px !important;
    }
    .btn-action {
        padding: 12px !important;
        font-size: 13px !important;
    }
}

/* === TEK SAYFA SITE MODÜLÜ SAF CSS SINIFLARI === */
.studio-title-block {
    text-align: center;
    margin-bottom: 20px;
}
.studio-main-heading {
    margin: 0;
    font-size: 26px;
    background: linear-gradient(45deg, #3b82f6, #10b981);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.studio-main-desc {
    color: var(--text-muted, #94a3b8);
    margin: 6px 0 0 0;
    font-size: 13.5px;
}
body.light-theme .studio-main-desc {
    color: #64748b;
}
.inp-color-picker {
    height: 38px;
    cursor: pointer;
}
.portfolio-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}
.heading-margin-zero {
    margin: 0;
}
.btn-add-portfolio {
    background-color: var(--accent-emerald, #10b981);
}
.action-buttons-wrapper {
    margin-top: 15px;
}
.preview-iframe-clean {
    border: none;
}
.guide-title {
    margin-top: 0;
    color: var(--accent-emerald, #10b981);
}
.guide-subtitle {
    font-size: 13.5px;
    color: var(--text-muted, #94a3b8);
    margin: 0 0 15px 0;
}
body.light-theme .guide-subtitle,
body.light-theme .guide-card-text {
    color: #475569;
}
.guide-card-heading {
    margin: 0 0 8px 0;
    color: var(--accent-blue, #3b82f6);
}
.guide-card-text {
    margin: 0;
    font-size: 12.5px;
    color: var(--text-muted, #94a3b8);
    line-height: 1.5;
}