:root {
    --bg-dark: #0f172a;
    --accent: #38bdf8;
    --glass: rgba(255, 255, 255, 0.05);
    --text: #f1f5f9;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text);
    scroll-behavior: smooth;
    overflow: hidden;
}

.smooth-wrapper {
    height: 100vh;
    overflow-y: auto;
    scroll-snap-type: y mandatory;
}

section {
    min-height: 100vh;
    min-width: 100vw;
    scroll-snap-align: start;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero {
    text-align: center;
    background: radial-gradient(circle at top right, #1e293b, #0f172a);
}

.hero h1 {
    font-size: 5rem;
    font-weight: 800;
}

.hero h1 span {
    color: var(--accent);
}

.btn-main {
    margin-top: 2rem;
    padding: 15px 40px;
    background: var(--accent);
    color: var(--bg-dark);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: 0.3s ease-in-out;
    display: inline-block;
    box-shadow: 0 5px 20px rgba(56, 189, 248, 0.2);
    border: none;
    cursor: pointer;
}

.btn-main:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 40px rgba(56, 189, 248, 0.4);
}

#color-search {
width: 100%;
padding: 10px 15px;
margin-top: 15px;
margin-bottom: 10px;
background: var(--bg-dark);
border: 1px solid rgba(255, 255, 255, 0.1);
color: var(--text);
border-radius: 8px;
font-size: 0.9rem;
}

.app-container {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
    padding: 40px 20px;
    max-width: 1600px;
    margin: 0 auto;
    align-items: start;
}

.glass-panel {
    background: var(--glass);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

h2 {
    color: var(--accent);
    margin-bottom: 20px;
    font-size: 1.4rem;
}

.preview {
    height: 160px;
    border-radius: 15px;
    margin-bottom: 20px;
    transition: 0.3s;
}

#text-input {
width: 100%;
padding: 20px 10px;
background: transparent;
border: none;
font-size: 2.2rem;
font-weight: 800;
text-align: center;
color: transparent;
-webkit-background-clip: text;
background-clip: text;
background-size: 100% 100%;
}

.colors-scroll-viewport {
    height: 600px;
    overflow-y: auto;
    padding-right: 10px;
    margin-top: 15px;
}

.colors-scroll-viewport::-webkit-scrollbar {
    width: 6px;
}

.colors-scroll-viewport::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 10px;
}

.colors-grid-mini {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.color-item-mini {
    display: flex;
    align-items: center;
    gap: 15px;
    background: rgba(255, 255, 255, 0.05);
    padding: 10px 15px;
    border-radius: 12px;
    cursor: pointer;
    transition: 0.3s;
}

.color-item-mini:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: none;
}

.mini-box {
    width: 50px;
    height: 50px;
    border-radius: 8px;
    flex-shrink: 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.mini-info strong {
    display: block;
    font-size: 1rem;
    margin-bottom: 2px;
}

.mini-info span {
    font-size: 0.85rem;
    opacity: 0.8;
    font-family: monospace;
}

.btn-secondary {
    width: 100%;
    padding: 12px;
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    border-radius: 12px;
    cursor: pointer;
    margin-bottom: 10px;
    transition: 0.3s;
}

.btn-secondary:hover {
    background: var(--accent);
    color: #000;
}

.btn-copy {
    width: 100%;
    padding: 12px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: #fff;
    border-radius: 12px;
    cursor: pointer;
}

.color-input-group,
.text-input-group {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

input[type="range"] {
    flex-grow: 1;
    accent-color: var(--accent);
}

@media (max-width: 1200px) {
    .app-container {
        grid-template-columns: 1fr;
    }

    .colors-scroll-viewport {
        height: 450px;
    }

    .hero h1 {
        font-size: 3rem;
    }
}

.section-palette {
    background: radial-gradient(circle at bottom left, #1e293b, var(--bg-dark));
}

.palette-grid-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    width: 100%;
    max-width: 1400px;
    height: 80vh;
}

.main-generator {
    display: flex;
    flex-direction: column;
}

.popular-palettes {
    display: flex;
    flex-direction: column;
}

.base-color-control {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.base-color-control input {
    width: 40px;
    height: 40px;
    border: none;
    cursor: pointer;
    border-radius: 8px;
    padding: 0;
}

.palette-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.palette-grid {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    flex-grow: 1;
}

.palette-card {
    flex: 1;
    height: 100%;
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    padding-bottom: 10px;
    color: white;
    font-weight: bold;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    cursor: pointer;
    transition: transform 0.2s;
    min-width: 100px;
}

.palette-card:hover {
    transform: scale(1.03);
}

.presets-group {
    display: flex;
    gap: 10px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.presets-group button {
    width: auto;
}

.popular-palette-item {
    display: flex;
    margin-bottom: 15px;
    cursor: pointer;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.popular-palette-color {
    height: 40px;
    flex-grow: 1;
}

@media (max-width: 1200px) {
    .palette-grid-wrapper {
        grid-template-columns: 1fr;
        height: auto;
    }
    .main-generator, .popular-palettes { height: auto; }
}

@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .app-container { padding: 20px; }
    .glass-panel { padding: 20px; }
    .palette-header button { margin-left: 0; margin-top: 10px; }
    .popular-palette-color { height: 25px; }
}