/* saferuse.css - Modern, fancy, mobile-first design */

:root {
    --background: #22223b;
    --primary: #fff;
    --accent: #00b894;
    --card-bg: #fff;
    --grey: #f4f4f4;
    --radius: 10px;
    --shadow: 0 4px 16px rgba(44, 62, 80, 0.08);
    --transition: 0.2s cubic-bezier(.4,0,.2,1);
}

html {
    box-sizing: border-box;
    font-size: 16px;
    background: var(--background);
}

*, *:before, *:after {
    box-sizing: inherit;
}

body {
    font-family: 'Inter', Arial, sans-serif;
    margin: 0;
    padding: 1.5em 1em;
    background: var(--background);
    color: var(--primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    max-width: 420px;
    margin: 0 auto;
    width: 100%;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1em;
    gap: .5em;
}

header #langSwitch {
    margin: 0;
}

h1 {
    font-size: 1.3em;
    text-align: left;
    font-weight: 700;
    margin: 0;
    line-height: 1;
}

.calculator {
    background: var(--card-bg);
    border: 1px solid var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.5em 1em;
    margin: 0 auto 2em auto;
    max-width: 100%;
    transition: box-shadow var(--transition);
    color: var(--background);
}

.calculator:hover {
    box-shadow: 0 8px 32px rgba(44, 62, 80, 0.12);
}

h2 {
    font-size: 1.25rem;
    margin-bottom: 1em;
    margin-top: 0;
    font-weight: 600;
    color: var(--accent)
}

label {
    display: block;
    margin-top: 1.2em;
    font-size: 1rem;
    font-weight: 500;
}

input, textarea {
    width: 100%;
    padding: 0.75em 1em;
    margin-top: 0.4em;
    border: 1px solid var(--card-bg);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--grey);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
    font-family: 'Inter', Arial, sans-serif;
}

input:focus, textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(0,184,148,0.12);
}

button {
    margin-top: 1.5em;
    padding: 0.75em 1.5em;
    background: linear-gradient(90deg, var(--accent) 60%, #00cec9 100%);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,184,148,0.08);
    transition: background var(--transition), transform var(--transition);
}

button:hover, button:focus {
    background: linear-gradient(90deg, #00cec9 60%, var(--accent) 100%);
    transform: translateY(-2px) scale(1.03);
}

.output {
    margin-top: 1.5em;
    min-height: 1.5em;
    background: #f1f8f6;
    border-radius: 6px;
    padding: 0.75em 1em;
    border: 1px solid #e0f7fa;
}

@media (min-width: 600px) {
    body {
        padding: 2.5em 0;
    }
    .calculator {
        padding: 1.5em;
    }
    h1 {
        font-size: 1.9rem;
    }
}

@media (min-width: 900px) {
    body {
        padding: 3em 0;
    }
    .calculator {
        max-width: 480px;
    }
}