:root {
    --bg-primary: #040811;
    --bg-gradient: radial-gradient(circle at 50% 0%, #0d1a30 0%, #040811 70%);
    --card-bg: rgba(13, 20, 35, 0.45);
    --card-border: rgba(56, 139, 253, 0.15);
    --card-border-hover: rgba(56, 139, 253, 0.4);

    --color-primary: #39d353;
    --color-secondary: #58a6ff;
    --color-accent: #f778ba;
    --color-text-main: #f0f6fc;
    --color-text-muted: #8b949e;
    --shadow-glow: 0 0 20px rgba(88, 166, 255, 0.2);
    --shadow-glow-green: 0 0 20px rgba(57, 211, 83, 0.35);

    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    background: var(--bg-primary);
    background-image: var(--bg-gradient);
    color: var(--color-text-main);
    font-family: var(--font-sans);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    overflow-x: hidden;
}

.parent {
    width: 100%;
    max-width: 760px;
    display: flex;
    flex-direction: column;
    gap: 25px;
    padding: 10px;
}

.header-brand {
    text-align: center;
    margin-bottom: 5px;
}

.header-brand h1 {
    font-size: 2.2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-text-main) 30%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.header-brand p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-top: 6px;
    font-weight: 400;
}

.hero,
.preview,
.about {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    transition: var(--transition-smooth);
}

.hero:hover,
.preview:hover {
    border-color: var(--card-border-hover);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.hero {
    padding: 30px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(88, 166, 255, 0.05) 0%, transparent 60%);
    pointer-events: none;
}

.hero1 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-main);
    text-align: center;
    letter-spacing: -0.2px;
}

form {
    width: 100%;
    max-width: 480px;
    justify-content: center;
    display: flex;

}

.form-group {
    display: flex;
    flex-direction: column;
    width: 100%;
    gap: 15px;
}

.input-container {
    position: relative;
    width: 100%;
}

.input-container input {
    width: 100%;
    padding: 16px 20px;
    background: rgba(4, 8, 17, 0.6);
    border: 1.5px solid var(--card-border);
    border-radius: 14px;
    color: var(--color-text-main);
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition-smooth);
    outline: none;
}

.input-container input:focus {
    border-color: var(--color-secondary);
    box-shadow: var(--shadow-glow);
    background: rgba(4, 8, 17, 0.85);
}

.input-container input::placeholder {
    color: var(--color-text-muted);
    font-weight: 400;
}

/* Theme Selector */
.theme-selector {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
}

.theme-selector label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-text-muted);
}

.select-wrapper {
    position: relative;
    width: 100%;
}

.select-wrapper::after {
    content: '▾';
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-secondary);
    font-size: 0.9rem;
    pointer-events: none;
}

.select-wrapper select {
    width: 100%;
    padding: 14px 40px 14px 18px;
    background: rgba(4, 8, 17, 0.6);
    border: 1.5px solid var(--card-border);
    border-radius: 14px;
    color: var(--color-text-main);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    outline: none;
    transition: var(--transition-smooth);
}

.select-wrapper select:focus {
    border-color: var(--color-secondary);
    box-shadow: var(--shadow-glow);
    background: rgba(4, 8, 17, 0.85);
}

.select-wrapper select:hover {
    border-color: rgba(56, 139, 253, 0.35);
}

.select-wrapper select option {
    background: #0d1117;
    color: var(--color-text-main);
    padding: 10px;
}

.form {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    width: 100%;
}

.form input {
    width: 100%;
    padding: 16px 20px;
    background: rgba(4, 8, 17, 0.6);
    border: 1.5px solid var(--card-border);
    border-radius: 14px;
    color: var(--color-text-main);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition-smooth);
    outline: none;
}

.form input:focus {
    border-color: var(--color-secondary);
    box-shadow: var(--shadow-glow);
    background: rgba(4, 8, 17, 0.85);
}

.form input::placeholder {
    color: var(--color-text-muted);
    font-weight: 400;
}

.form button {
    width: 100%;
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--color-primary), #2ea043);
    border: none;
    border-radius: 14px;
    color: #ffffff;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-smooth);
    letter-spacing: 0.3px;
    box-shadow: 0 4px 15px rgba(57, 211, 83, 0.25);
}

.form button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-green);
}

.form button:active {
    transform: translateY(0);
}

.form button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}



.preview {
    padding: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 25px;
    min-height: 250px;
    text-align: center;
}

.preview-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 700;
    color: var(--color-secondary);
}

.preview-content {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 180px;
    position: relative;
}

#card-image {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    opacity: 0;
    transform: scale(0.96);
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

#card-image.loaded {
    opacity: 1;
    transform: scale(1);
}

.preview-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--color-text-muted);
}

.preview-placeholder svg {
    width: 48px;
    height: 48px;
    stroke: rgba(139, 148, 158, 0.4);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-6px);
    }
}

.about {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.about-header {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--color-text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}

.about-header svg {
    color: var(--color-primary);
}

.about-body {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.about-body code {
    font-family: var(--font-mono);
    background: rgba(4, 8, 17, 0.6);
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid var(--card-border);
    color: var(--color-secondary);
}
.about a{
    color: white;
    text-decoration: none;
}

.about i{
    margin-right: 4px;
}
.preview{
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

    .preview button{
    width: 150px;
    height: 30px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: .3s;
}
.copy-link{
    background-color:  #7C3AED;
    color:white;
}
.copy-link:hover{
    background:  #6D28D9;
}
.copy-preview{
    background-color:  #7C3AED;
    color:white;
}
.copy-preview:hover{
    background:  #6D28D9;
}