@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
    --success-color: #10b981;
    --info-color: #3b82f6;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --background-color: #f5f5f5;
}

* {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 80%;
}

body {
    background: var(--background-color);
    padding: 4rem 2rem;
}

.container {
    max-width: 80rem;
    margin: 0 auto;
}

h1 {
    font-size: 3rem;
    color: #333;
    margin-bottom: 3rem;
    text-align: center;
}

.alert {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    margin-bottom: 2rem;
    border-radius: 1rem;
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border-left: 5px solid;
    position: relative;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideOut {
    to {
        opacity: 0;
        transform: translateX(20px);
    }
}

.alert.hiding {
    animation: slideOut 0.3s ease forwards;
}

.alert-icon {
    font-size: 3rem;
    flex-shrink: 0;
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.alert-message {
    font-size: 1.4rem;
    line-height: 1.6;
    color: #666;
}

.alert-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: #999;
    transition: color 0.3s ease;
    padding: 0.5rem;
}

.alert-close:hover {
    color: #333;
}

/* Success */
.alert-success {
    border-left-color: var(--success-color);
}

.alert-success .alert-icon {
    color: var(--success-color);
}

.alert-success .alert-title {
    color: var(--success-color);
}

/* Info */
.alert-info {
    border-left-color: var(--info-color);
}

.alert-info .alert-icon {
    color: var(--info-color);
}

.alert-info .alert-title {
    color: var(--info-color);
}

/* Warning */
.alert-warning {
    border-left-color: var(--warning-color);
}

.alert-warning .alert-icon {
    color: var(--warning-color);
}

.alert-warning .alert-title {
    color: var(--warning-color);
}

/* Error */
.alert-error {
    border-left-color: var(--error-color);
}

.alert-error .alert-icon {
    color: var(--error-color);
}

.alert-error .alert-title {
    color: var(--error-color);
}

/* Boutons de test */
.test-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.btn {
    padding: 1.2rem 2.5rem;
    font-size: 1.5rem;
    font-weight: 600;
    border: none;
    border-radius: 0.8rem;
    cursor: pointer;
    color: #fff;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn:active {
    transform: translateY(0);
}

.btn-success {
    background: var(--success-color);
}

.btn-info {
    background: var(--info-color);
}

.btn-warning {
    background: var(--warning-color);
}

.btn-error {
    background: var(--error-color);
}

/* Container pour alertes dynamiques */
.alert-container {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 9999;
    max-width: 40rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}