/* Base Styles */
:root {
    --bg-dark: #0a0a0a;
    --panel-bg: #151515;
    --border-color: #333;
    --text-primary: #fff;
    --text-secondary: #aaa;
    --accent: #fff;
    --hover: #222;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
}

/* Custom Webkit Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

.main-layout {
    display: flex;
    height: 100vh;
    width: 100vw;
    min-height: 0;
}

/* İçerik uzun olduğunda gövde kaydırılsın (body overflow:hidden ile uyumlu) */
.main-layout > main {
    flex: 1;
    min-width: 0;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
}

.global-sidebar {
    width: 260px;
    background-color: #050505;
    border-right: 1px solid var(--border-color);
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    overflow-y: auto;
}

.global-sidebar::-webkit-scrollbar {
    width: 4px;
}
.global-sidebar::-webkit-scrollbar-thumb {
    background: #222;
    border-radius: 8px;
}
.global-sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

.global-sidebar .logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 900;
    color: var(--accent);
    margin-bottom: 40px;
}

.global-sidebar .logo i {
    font-size: 1.5rem;
    color: #4CAF50;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-links li a {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 12px 16px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.nav-links li a i {
    font-size: 1.2rem;
}

.nav-links li a:hover {
    background-color: #1a1a1a;
    color: var(--text-primary);
}

.nav-links li a.active {
    background-color: rgba(76, 175, 80, 0.1);
    color: #4CAF50;
    border-left: 3px solid #4CAF50;
}

.app-container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar Styles */
.sidebar {
    width: 320px;
    background-color: var(--panel-bg);
    border-right: 1px solid var(--border-color);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow-y: auto;
    flex-shrink: 0;
}

.header h1 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.header p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

textarea {
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    resize: vertical;
    outline: none;
    transition: border-color 0.2s;
}

textarea:focus {
    border-color: var(--accent);
}

/* Swatch Grid */
.gradient-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}
.grad-swatch {
    aspect-ratio: 1;
    border-radius: 6px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: transform 0.2s, border-color 0.2s;
}
.grad-swatch:hover {
    transform: scale(1.05);
}
.grad-swatch.active {
    border-color: var(--accent);
    transform: scale(1.05);
}

/* Select Styling */
.select-wrapper {
    position: relative;
}
.select-wrapper select {
    width: 100%;
    appearance: none;
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 12px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    cursor: pointer;
    outline: none;
}
.select-wrapper i {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--text-secondary);
}

/* Custom Color Picker */
.color-picker-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 12px;
}
input[type="color"] {
    -webkit-appearance: none;
    appearance: none;
    border: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
}
input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}
input[type="color"]::-webkit-color-swatch {
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50%;
}
#textColorHex {
    font-family: monospace;
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

/* Sliders */
.slider-group .slider-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.slider-header span {
    font-size: 0.8rem;
    color: var(--accent);
    background: #2a2a2a;
    padding: 2px 6px;
    border-radius: 4px;
}

input[type=range] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    background: transparent;
}
input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 16px;
    width: 16px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    margin-top: -6px;
}
input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px;
    cursor: pointer;
    background: var(--border-color);
    border-radius: 2px;
}
input[type=range]:focus {
    outline: none;
}

/* Buttons */
.primary-btn {
    background-color: var(--text-primary);
    color: var(--bg-dark);
    border: none;
    border-radius: 8px;
    padding: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    transition: opacity 0.2s;
    margin-top: auto;
}
.primary-btn:hover {
    opacity: 0.9;
}
.export-note {
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Preview Area */
.preview-area {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: 40px;
    background: #000;
    background-image: 
        linear-gradient(#1a1a1a 1px, transparent 1px),
        linear-gradient(90deg, #1a1a1a 1px, transparent 1px);
    background-size: 40px 40px;
}

#canvasWrapper {
    position: relative;
    border-radius: 12px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    background-color: #000;
}

#exportCanvas {
    width: 1080px;
    height: 1350px;
    position: absolute;
    top: 0;
    left: 0;
    transform-origin: top left;
    overflow: hidden;
    background-color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Canvas Layers */
#gradientLayer, #grainLayer, #vignetteLayer, #textLayer {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

#grainLayer {
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.3; /* Base JS controls this */
    mix-blend-mode: overlay;
}

#vignetteLayer {
    /* JS updates the box-shadow alpha */
    box-shadow: inset 0 0 500px rgba(0,0,0,0.5);
}

#textLayer {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 100px;
    z-index: 10;
}

#quoteRender {
    font-family: 'Anton', sans-serif;
    font-size: 160px;
    color: #ebff00;
    line-height: 1.1;
    text-transform: uppercase;
    word-break: break-word;
    white-space: pre-wrap;
}

/* Gradients Collection */
.grad-1 { background-image: conic-gradient(from 90deg, #ff9a9e, #fecfef, #ff9a9e); }
.grad-2 { background-image: radial-gradient(circle at top left, #84fab0, #8fd3f4); }
.grad-3 { background-image: radial-gradient(circle at bottom right, #4facfe, #00f2fe); }
.grad-4 { background-image: radial-gradient(ellipse at center, #fccb90, #d57eeb); }

/* Beautiful Mesh-like blends */
.grad-5 { background: radial-gradient(at 0% 0%, hsla(253,16%,7%,1) 0, transparent 50%), radial-gradient(at 50% 0%, #1c52b5 0, transparent 50%), radial-gradient(at 100% 0%, #b51c5b 0, transparent 50%); background-color: #0b101e; }
.grad-6 { background: radial-gradient(at 40% 20%, #ff5e3a 0px, transparent 50%), radial-gradient(at 80% 0%, #ff2a68 0px, transparent 50%), radial-gradient(at 0% 50%, #ff9500 0px, transparent 50%); background-color: #2b000b; }
.grad-7 { background: radial-gradient(at 100% 0%, hsla(189,100%,56%,1) 0px, transparent 50%), radial-gradient(at 0% 50%, hsla(340,100%,76%,1) 0px, transparent 50%), radial-gradient(at 100% 100%, hsla(40,100%,74%,1) 0px, transparent 50%); background-color: hsla(258,100%,86%,1); }
.grad-8 { background: radial-gradient(at 0% 100%, hsla(253,16%,7%,1) 0px, transparent 50%), radial-gradient(at 50% 0%, hsla(225,39%,30%,1) 0px, transparent 50%), radial-gradient(at 100% 100%, hsla(339,49%,30%,1) 0px, transparent 50%); background-color: #121021; }

.grad-9 { background: radial-gradient(at 0% 0%, hsla(145,100%,46%,1) 0px, transparent 50%), radial-gradient(at 50% 100%, hsla(232,100%,56%,1) 0px, transparent 50%), radial-gradient(at 100% 0%, hsla(314,100%,53%,1) 0px, transparent 50%); background-color: hsla(235,100%,13%,1); }
.grad-10 { background: radial-gradient(at 80% 0%, hsla(189,100%,56%,1) 0px, transparent 50%), radial-gradient(at 0% 50%, hsla(340,100%,76%,1) 0px, transparent 50%), radial-gradient(at 80% 100%, hsla(22,100%,77%,1) 0px, transparent 50%), radial-gradient(at 0% 0%, hsla(342,100%,76%,1) 0px, transparent 50%); background-color: hsla(284,100%,84%,1); }

.grad-11 { background: radial-gradient(at 0% 100%, hsla(22,100%,77%,1) 0px, transparent 50%), radial-gradient(at 80% 0%, hsla(189,100%,56%,1) 0px, transparent 50%), radial-gradient(at 0% 0%, hsla(342,100%,76%,1) 0px, transparent 50%); background-color: hsla(284,100%,84%,1); }
.grad-12 { background: radial-gradient(at 0% 0%, hsla(253,16%,7%,1) 0px, transparent 50%), radial-gradient(at 100% 100%, hsla(225,39%,30%,1) 0px, transparent 50%), radial-gradient(at 0% 100%, hsla(339,49%,30%,1) 0px, transparent 50%); background-color: hsla(245,39%,10%,1); }

@media (max-width: 768px) {
    .main-layout {
        flex-direction: column;
    }
    
    .global-sidebar {
        width: 100%;
        padding: 16px 16px 0 16px;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        height: auto;
        flex-shrink: 0;
    }
    
    .global-sidebar .logo {
        margin-bottom: 12px;
        justify-content: center;
    }
    
    .nav-links {
        flex-direction: row;
        overflow-x: auto;
        overflow-y: hidden;
        padding-bottom: 16px;
        gap: 8px;
        -webkit-overflow-scrolling: touch;
    }
    
    .nav-links::-webkit-scrollbar {
        height: 0px; 
        display: none;
    }
    
    .nav-links br {
        display: none;
    }
    
    .nav-links li:not(:has(a)) {
        display: none;
    }
    
    .nav-links li[style] {
        display: none !important;
    }
    
    .nav-links li a {
        padding: 8px 16px;
        border-radius: 20px;
        background: var(--panel-bg);
        border: 1px solid var(--border-color);
        white-space: nowrap;
        font-size: 0.85rem;
    }
    
    .nav-links li a.active {
        background: rgba(76, 175, 80, 0.1);
        border: 1px solid #4CAF50;
    }
}