/* 🌚 Thèmes : sombre et clair */
[data-theme="dark"] {
	--bg-color: #212121;
	--container-bg: #2b2b2b;
	--text-color: #ececec;
	--input-bg: #333333;
	--primary: #4d9eff;
	--primary-hover: #2f80ed;
	--border-color: #555;
	--shadow: rgba(255, 255, 255, 0.05);
}

[data-theme="light"] {
	--bg-color: #f7f9fc;
	--container-bg: #ffffff;
	--text-color: #1f2d3d;
	--input-bg: #ffffff;
	--primary: #2f80ed;
	--primary-hover: #1366d6;
	--border-color: #ccc;
	--shadow: rgba(0, 0, 0, 0.05);
}

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

html {
	background-color: var(--bg-color);
	color: var(--text-color);
	transition: background 0.3s ease, color 0.3s ease;
}

/* 🧍 Corps général */
body {
	font-family: 'Segoe UI', sans-serif;
	background: var(--bg-color);
	color: var(--text-color);
	padding: 2rem;
	transition: background 0.3s ease, color 0.3s ease;
}

/* 🧱 Conteneur principal */
.container {
	max-width: 960px;
	margin: auto;
	background: var(--container-bg);
	border-radius: 12px;
	padding: 2rem;
	box-shadow: 0 4px 12px var(--shadow);
	transition: background 0.3s ease, box-shadow 0.3s ease;
}

/* 🏷️ En-tête */
.header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	flex-wrap: wrap;
	margin-bottom: 2rem;
	gap: 1rem;
}

.header h1 {
	font-size: 1.8rem;
	font-weight: 700;
}

/* 🔗 Navigation */
.nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav a {
    text-decoration: none;
    color: var(--primary);
    font-weight: 500;
    height: 40px;
    display: flex;
    align-items: center;
    padding: 0 1rem;
    transition: color 0.3s ease;
}

.nav a:hover {
    color: var(--primary-hover);
}

/* 📝 Formulaire */
.task-form {
	display: flex;
	flex-direction: column;
	gap: 1.5rem;
}

.form-group {
	display: flex;
	flex-direction: column;
}

label {
	margin-bottom: 0.5rem;
	font-weight: 600;
}

/* 🧩 Champs de saisie */
input[type="text"],
input[type="date"],
select,
textarea {
	padding: 0.6rem;
	border-radius: 6px;
	border: 1px solid var(--border-color);
	font-size: 1rem;
	font-family: 'Segoe UI', sans-serif;
	background-color: var(--input-bg);
	color: var(--text-color);
	transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.3s ease, color 0.3s ease;
}

textarea {
	resize: none !important;
	overflow: hidden;
	min-height: 80px;
	line-height: 1.4;
}

/* Focus */
textarea:focus,
input[type="text"]:focus,
select:focus {
	outline: none;
	border-color: var(--primary);
	box-shadow: 0 0 0 2px rgba(47, 128, 237, 0.2);
}

/* 🔘 Bouton général */
.btn {
	background-color: var(--primary);
	color: white;
	padding: 0.7rem 1.4rem;
	border: none;
	border-radius: 6px;
	font-weight: 600;
	cursor: pointer;
	transition: background-color 0.2s ease, transform 0.1s ease;
}

.btn:hover {
	background-color: var(--primary-hover);
	transform: translateY(-2px);
}

/* 🌗 Bouton de bascule du thème */
[data-theme-toggler] {
	background: var(--container-bg);
	color: var(--text-color);
	border: 1px solid var(--border-color);
	padding: 0.5rem 1rem;
	border-radius: 6px;
	font-size: 0.95rem;
	font-weight: 600;
	cursor: pointer;
	transition: all 0.3s ease;
	box-shadow: 0 2px 6px var(--shadow);
}

[data-theme-toggler]:hover {
	background: var(--primary);
	color: white;
	border-color: var(--primary);
	box-shadow: 0 3px 8px var(--shadow);
	transform: translateY(-2px);
}

[data-theme-toggler]:active {
	transform: scale(0.97);
}

/* 🌗 Switch visuel (optionnel si tu veux le remplacer plus tard par un vrai switch) */
[data-theme="dark"] [data-theme-toggler]::after {
	content: "🌙";
	margin-left: 8px;
}

[data-theme="light"] [data-theme-toggler]::after {
	content: "☀️";
	margin-left: 8px;
}

/* 🌙 Theme switch */
.theme-switch-wrapper {
    display: flex;
    align-items: center;
    height: 40px;
}

.theme-switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 26px;
    align-self: center;
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    transition: 0.4s;
    border-radius: 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 6px;
}

.slider:before {
    content: "";
    position: absolute;
    height: 18px;
    width: 18px;
    left: 4px;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--primary);
    transition: 0.4s;
    border-radius: 50%;
    z-index: 2;
}

input:checked + .slider:before {
    transform: translate(26px, -50%);
}

.slider-icon {
    font-size: 12px;
    z-index: 1;
}

/* Responsive ajusté */
@media (max-width: 768px) {
    .nav {
        width: 100%;
        gap: 1rem;
    }

    .nav a {
        flex: 1;
        justify-content: center;
    }

    .theme-switch-wrapper {
        height: 40px;
        justify-content: center;
    }
}