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

:root {
    --primary-color: #4a6fa5;
    --primary-dark: #345888;
    --secondary-color: #f8aa4b;
    --text-color: #333333;
    --light-text: #6c757d;
    --light-bg: #f8f9fa;
    --border-color: #dee2e6;
    --danger-color: #dc3545;
    --success-color: #28a745;
    --white: #ffffff;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #f8aa4b, #f9896b);
    color: var(--text-color);
    min-height: 100vh;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    width: 100%;
    max-width: 800px;
    overflow: hidden;
}

header {
    background: var(--primary-color);
    color: var(--white);
    padding: 25px 30px;
    text-align: center;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 5px;
}

.logo i {
    font-size: 2rem;
}

h1 {
    font-size: 2.2rem;
    font-weight: 700;
    margin: 0;
}

.tagline {
    font-size: 1rem;
    font-weight: 300;
    opacity: 0.9;
}

main {
    padding: 30px;
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
    font-weight: 600;
}

.reminder-form-section {
    margin-bottom: 40px;
}

.form-group {
    margin-bottom: 20px;
    width: 100%;
}

.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.form-row .form-group {
    margin-bottom: 0;
    flex: 1;
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--light-text);
    font-weight: 500;
}

input, select, textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

textarea {
    min-height: 80px;
    resize: vertical;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(74, 111, 165, 0.1);
}

.btn-primary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    width: 100%;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition);
}

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

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

.reminders-section {
    margin-top: 20px;
}

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--light-text);
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 20px;
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 15px;
    opacity: 0.5;
}

ul {
    list-style-type: none;
    padding: 0;
    width: 100%;
}

.reminder-card {
    background: var(--light-bg);
    padding: 20px;
    margin-bottom: 15px;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: var(--transition);
    border-left: 4px solid var(--primary-color);
}

.reminder-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.reminder-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.reminder-title {
    font-weight: 600;
    font-size: 1.1rem;
}

.reminder-actions {
    display: flex;
    gap: 10px;
}

.reminder-actions button {
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    transition: var(--transition);
}

.edit-btn {
    color: var(--primary-color);
}

.edit-btn:hover {
    background-color: rgba(74, 111, 165, 0.1);
}

.delete-btn {
    color: var(--danger-color);
}

.delete-btn:hover {
    background-color: rgba(220, 53, 69, 0.1);
}

.reminder-details {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.reminder-detail {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    color: var(--light-text);
}

.reminder-notes {
    margin-top: 10px;
    font-size: 0.9rem;
    color: var(--light-text);
    border-top: 1px solid var(--border-color);
    padding-top: 10px;
}

footer {
    text-align: center;
    padding: 20px;
    color: var(--light-text);
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(10px);
    }
}

.fade-in {
    animation: fadeIn 0.4s forwards;
}

.fade-out {
    animation: fadeOut 0.4s forwards;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        border-radius: 0;
        max-width: 100%;
        height: 100%;
    }
    
    main {
        padding: 20px;
    }
    
    .form-row {
        flex-direction: column;
        gap: 15px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    body {
        padding: 0;
    }
    
    header {
        padding: 20px;
    }
    
    .logo i {
        font-size: 1.5rem;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    .reminder-header {
        flex-direction: column;
        gap: 10px;
    }
    
    .reminder-actions {
        align-self: flex-end;
    }
    
    .reminder-details {
        flex-direction: column;
        gap: 8px;
    }
}