/* ================= Reset ================= */
body, h1, h2, h3, p, a, form, input, label, button, textarea, select {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, sans-serif;
}

/* ================= Corps ================= */
body {
    background: linear-gradient(135deg, #141e30, #243b55);
    color: #f5f5f5;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0;
    min-height: 100vh;
}

/* Accent color */
.accent { color: #4da6ff; }

/* ================= Header ================= */
header {
    width: 100%;
    height: 60px;
    padding: 0 20px;
    display: flex;
    align-items: center;
    background: rgba(43, 43, 43, 0.9);
    backdrop-filter: blur(6px);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

/* Logo */
.logo-container {
    height: 40px;
    display: flex;
    align-items: center;
    margin-right: 20px;
}

.logo-container img.logo {
    height: 100%;
    max-width: 150px;
    width: auto;
    object-fit: contain;
}

/* Navigation */
header nav {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-left: 0;
}

header nav a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    padding: 8px 12px;
    white-space: nowrap;
    font-size: 0.9em;
}

header nav a:hover {
    color: #4da6ff;
}

/* ================= Main ================= */
main {
    width: 100%;
    max-width: 1200px;
    background-color: rgba(43, 43, 43, 0.85);
    padding: 80px 30px 30px;
    border-radius: 15px;
    box-shadow: 0px 6px 20px rgba(0, 0, 0, 0.5);
    text-align: center;
    margin: 20px auto;
}

/* ================= Projets et Tâches ================= */
.projects-container {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 100%;
}

.project-card {
    background: rgba(43, 43, 43, 0.85);
    border-radius: 10px;
    padding: 15px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    text-align: left;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.project-title {
    font-size: 1.3em;
    color: #4da6ff;
}

.tasks-list {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.task-item {
    background: rgba(60, 60, 60, 0.6);
    padding: 10px;
    border-radius: 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.task-status {
    padding: 3px 8px;
    border-radius: 10px;
    font-size: 0.8em;
    font-weight: bold;
}

.status-todo { background-color: #ff6b6b; }
.status-in-progress { background-color: #ffa500; }
.status-to-validate { background-color: #4da6ff; }
.status-done { background-color: #00ff7f; }

.add-project-btn {
    display: block;
    width: 100%;
    padding: 10px;
    margin-top: 20px;
    background-color: #4da6ff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
}

.add-project-btn:hover {
    background-color: #3a8ce7;
}

.filter-container {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
}

.filter-select {
    padding: 8px;
    border-radius: 5px;
    border: 1px solid #444;
    background-color: rgba(255, 255, 255, 0.1);
    color: #f5f5f5;
}

.export-btn {
    padding: 8px 15px;
    background-color: #2ecc71;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

/* ================= Formulaires ================= */
.form-card {
    display: flex;
    flex-direction: column;
    gap: 15px;
    width: 100%;
    max-width: 500px;
    margin: 20px auto;
    padding: 20px;
    background: rgba(43, 43, 43, 0.85);
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.form-card input,
.form-card textarea,
.form-card select {
    width: 100%;
    padding: 10px;
    border-radius: 5px;
    border: 1px solid #444;
    background-color: rgba(255, 255, 255, 0.1);
    color: #f5f5f5;
    font-family: 'Segoe UI', Roboto, sans-serif;
    box-sizing: border-box;
}

.form-card input::placeholder,
.form-card textarea::placeholder {
    color: #aaa;
}

.form-card button[type="submit"] {
    width: 100%;
    padding: 10px;
    background-color: #4da6ff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    margin-top: 10px;
}

.form-card button[type="submit"]:hover {
    background-color: #3a8ce7;
}

.message-erreur {
    color: #ff6b6b;
    text-align: center;
    margin-bottom: 15px;
    font-size: 0.9em;
}

/* ================= Footer ================= */
footer {
    margin-top: auto;
    padding: 25px;
    text-align: center;
    background: rgba(43, 43, 43, 0.9);
    border-radius: 12px;
    width: 100%;
    max-width: 700px;
    box-shadow: 0 -3px 15px rgba(0, 0, 0, 0.4);
}