:root {
    --main-blue: #2e6bba;
    --accent-yellow: rgb(164, 210, 248);
    --bg-light: #e5e9f2;
    --bg-white: #f8fafc;
    --white: #fff;
    --border-radius: 1.2em;
}

html,
body {
    margin: 0;
    padding: 0;
    background: var(--bg-light);
    font-family: 'Segoe UI', 'Roboto', 'Arial', sans-serif;
    min-height: 100vh;
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.form-container {
    background: var(--white);
    padding: 1.5em 2.5em;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 24px 0 rgba(46, 107, 186, 0.08);
    min-width: 320px;
    max-width: 95vw;
}

h1 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--main-blue);
    text-align: center;
    margin: 1rem;
    font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.slogan {
    text-align: center;
    font-size: 0.95rem;
    color: #4b4b4b;
    margin-bottom: 2rem;
    font-style: italic;
}

.generate-code {
    text-align: right;
    width: 100%;
}

.generate-code a {
    display: inline-block;
    font-size: 0.9rem;
    color: var(--main-blue);
    text-decoration: none;
    margin-top: 0.5rem;
    font-weight: 500;
    transition: color 0.2s ease, text-decoration 0.2s;
    cursor: pointer;
}

.generate-code a:hover {
    text-decoration: underline;
    color: var(--accent-yellow);
}

label {
    display: block;
    margin-bottom: 1.2em;
    color: #333;
    font-size: 1.05em;
}

.switch-wrapper {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    user-select: none;
}

/* Přepínač (vizuální část) */
.slider {
    width: 50px;
    height: 28px;
    background-color: #ccc;
    border-radius: 34px;
    position: relative;
    transition: background-color 0.3s;
}

/* Tečka uvnitř přepínače */
.slider::before {
    content: "";
    position: absolute;
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    border-radius: 50%;
    transition: transform 0.3s;
    z-index: 2;
}

/* Skrytý checkbox — úplně mimo tok, ale roztažený přes slider */
.switch-wrapper input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    left: 0;
    top: 0;
    width: 50px;
    height: 28px;
    margin: 0;
    cursor: pointer;
    z-index: 3;
}

/* Reakce na zaškrtnutí */
.switch-wrapper input:checked~.slider {
    background-color: var(--main-blue);
}

.switch-wrapper input:checked~.slider::before {
    transform: translateX(22px);
}

/* Text */
.label-text {
    font-size: 14px;
    color: #333;
}



input[type="checkbox"] {
    appearance: none;
    width: 24px;
    height: 24px;
    border: 2px solid var(--bg-light);
    border-radius: 4px;
    display: inline-block;
    position: relative;
    cursor: pointer;
    vertical-align: middle;
    background-color: var(--bg-white);
    transition: background-color 0.2s, border-color 0.2s;
}

input[type="checkbox"]:checked {
    background-color: var(--main-blue);
    border-color: var(--main-blue);
}

input[type="checkbox"]:checked::after {
    content: "✔";
    color: var(--bg-white);
    font-size: 12pt;
    text-align: center;
    padding: 0 3px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #333;
    margin-bottom: 1rem;
}

input[type="text"],
input[type="url"] {
    width: 100%;
    padding: 0.9em 1.2em;
    border: 1.5px solid var(--bg-light);
    border-radius: 0.7em;
    font-size: 1em;
    background: #f8fafc;
    transition: border-color 0.2s;
    margin-top: 0.3em;
    margin-bottom: 0.3em;
    box-sizing: border-box;
}

input[type="text"]:focus,
input[type="url"]:focus {
    border-color: var(--main-blue);
    outline: none;
}

button[type="submit"] {
    width: 100%;
    background: var(--main-blue);
    color: var(--white);
    border: none;
    border-radius: 0.9em;
    padding: 1em 0;
    font-size: 1.1em;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
    margin: 0.7em 0;
    box-shadow: 0 2px 8px 0 rgba(46, 107, 186, 0.07);
}

button[type="submit"]:hover {
    background: var(--accent-yellow);
    color: var(--main-blue);
}

.msg-error {
    color: #c00;
    background: #fff3f3;
    border-left: 4px solid #c00;
    padding: 0.7em 1em;
    border-radius: 0.5em;
    margin-bottom: 1em;
    font-size: 1em;
}

.msg-success {
    color: var(--main-blue);
    background: #eaf7ff;
    border-left: 4px solid var(--main-blue);
    padding: 0.7em 1em;
    border-radius: 0.5em;
    margin-bottom: 1em;
    font-size: 1em;
}

.short-url {
    display: inline-block;
    margin: 0.5em 0;
    font-weight: bold;
}

#copy-btn {
    background: none;
    border: none;
    padding: 0;
    vertical-align: middle;
    cursor: pointer;
}

#icon-copy,
#icon-ok {
    display: inline-block;
    vertical-align: middle;
}

/* Speciální styly pro řádek s prefixem a inputem */
.code-row {
    display: flex;
    align-items: stretch;
    gap: 0;
    padding: 0;
    margin-top: 0.3em;
    margin-bottom: 0.3em;
    height: 52px;
}

.code-prefix {
    background: #f8fafc;
    border: 1.5px solid var(--bg-light);
    border-right: none;
    border-radius: 0.7em 0 0 0.7em;
    font-size: 1em;
    color: #888;
    user-select: none;
    display: flex;
    align-items: center;
    height: 100%;
    font-family: inherit;
    font-weight: 400;
    padding: 0 0 0 1.2em;
    box-sizing: border-box;
}

/* Nepoužívej .code-input pro input[type="text"] globálně! */
.code-row input[type="text"] {
    border-radius: 0 0.7em 0.7em 0;
    border: 1.5px solid var(--bg-light);
    border-left: none;
    background: #f8fafc;
    font-size: 1em;
    font-family: inherit;
    font-weight: 400;
    box-sizing: border-box;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0 1.2em 0 0em;
    /* DŮLEŽITÉ: žádné display:flex ani align-items! */
}

footer {
    margin-top: 2em;
    text-align: center;
    color: #888;
    font-size: 0.97em;
}

@media (max-width: 480px) {
    .form-container {
        padding: 1.2em 0.5em 1.5em 0.5em;
        min-width: unset;
    }

    h1 {
        font-size: 2em;
    }
}

.code-row input[type="text"]:focus {
    border-color: var(--main-blue);
    outline: none;
}

.code-row input[type="text"]:focus + .code-prefix,
.code-row input[type="text"]:focus ~ .code-prefix {
    /* fallback, in case .code-prefix is after input */
    border-color: var(--main-blue);
    border-right: none;
}

.code-row:focus-within .code-prefix {
    border-color: var(--main-blue);
    border-right: none;
}

.cf-turnstile {
    text-align: center;
    padding-bottom: 0.2em;
}