* {
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    margin: 0;
    background: #f4f6f9;
    color: #222;
}

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.card {
    width: 100%;
    max-width: 390px;
    background: white;
    padding: 30px;
    border-radius: 18px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.card h1 {
    margin-bottom: 8px;
}

.card p {
    color: #666;
    margin-bottom: 25px;
}

label {
    display: block;
    margin-top: 14px;
    font-weight: bold;
}

input, textarea {
    width: 100%;
    margin-top: 7px;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 10px;
    font-size: 15px;
}

textarea {
    min-height: 90px;
    resize: vertical;
}

button {
    border: none;
    background: #1f4fd8;
    color: white;
    padding: 12px 16px;
    border-radius: 10px;
    cursor: pointer;
    font-weight: bold;
    margin-top: 14px;
}

button:hover {
    opacity: .9;
}

.error {
    background: #ffe5e5;
    color: #b00020;
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 15px;
}

header {
    background: #111827;
    color: white;
    padding: 18px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

header h1 {
    margin: 0;
    font-size: 24px;
}

header a {
    color: white;
    text-decoration: none;
    background: #ef4444;
    padding: 10px 14px;
    border-radius: 8px;
}

main {
    max-width: 1000px;
    margin: 30px auto;
    padding: 0 20px;
}

.form-section, .goals-section {
    background: white;
    padding: 25px;
    border-radius: 18px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
    margin-bottom: 25px;
}

.goal-form button {
    width: 100%;
}

.goals-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 18px;
}

.goal-card {
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    padding: 18px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.goal-card h3 {
    margin-top: 0;
}

.goal-card p {
    color: #555;
}

.goal-card small {
    color: #777;
}

.goal-card.done {
    background: #ecfdf5;
    border-color: #10b981;
}

.goal-card.done h3 {
    text-decoration: line-through;
    color: #047857;
}

.actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.actions form {
    flex: 1;
}

.actions button {
    width: 100%;
    margin-top: 0;
}

.complete {
    background: #10b981;
}

.delete {
    background: #ef4444;
}

.empty {
    color: #777;
}