* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Ubuntu", serif;
    --primary-bg: #f9fafb;
    --primary-bg2: #ffffff;
    --primary-fg: #4a00ff;
    --primary-fg2: #3f00e7;
    --primary-error: #ff3333;
    --N: 7;
    --X: 3;
    --box-size: 100px;
    --slide-gap: 2rem;
    --roundness: 0.25rem;
    --image-height: 50vh;
    --in-view-slide-no: 9;
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
}

body {
    margin: auto;
    max-width: 1080px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 1rem;
    gap: 1rem;
}

main {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: var(--slide-gap);
}

table {
    width: 90%;
    max-width: 500px;
    border-collapse: collapse;
}

th,
td {
    padding: 8px;
}

button {
    padding: 0.5rem 1rem;
    background-color: var(--primary-fg);
    color: var(--primary-bg);
    outline: none;
    border: none;
    border-radius: var(--roundness);
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: background-color 0.2s ease;
    min-height: 44px; /* Touch-friendly sizing */

    &:hover{
        background-color: var(--primary-fg2);
    }

    &:focus-visible {
        outline: 3px solid rgba(74, 0, 255, 0.5);
        outline-offset: 2px;
    }
}

input{
    padding: 0.5rem;
    border-radius: var(--roundness);
    border: solid 1px var(--primary-fg);
    box-shadow:var(--shadow);
    min-height: 44px; /* Touch-friendly sizing */
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type=number] {
    -moz-appearance: textfield;
}

/* Error message styles */
.error-message {
    background-color: rgba(255, 0, 0, 0.1);
    border-left: 4px solid var(--primary-error);
    color: #880000;
    padding: 1rem;
    margin: 1rem 0;
    border-radius: var(--roundness);
}

.pagination{
    display: flex;
    gap: var(--slide-gap);
    justify-content: center;
    align-items: center;
    padding: 1rem;
}

.dot{
    height: 1rem;
    width: 1rem;
    border-radius: 50%;
    border:solid 2px black;
    transition: all 200ms ease-in-out;
    box-shadow: var(--shadow);
    cursor: pointer;
}

.active-dot{
    background-color: var(--primary-fg);
    border:solid 2px var(--primary-fg);
}

.grid-container {
    display: grid;
    grid-template-columns: auto auto auto; 
    gap: 1rem;
    padding: 1rem;
    max-width: 450px;
    align-items: center;
    background-color: var(--primary-bg);
    border-radius: var(--roundness);
    box-shadow: var(--shadow);
    margin-bottom: 1rem;
}

.grid-container label {
    grid-column: 1 / 2; 
    font-weight: 500;
}

.grid-container input {
    grid-column: 2 / 3; 
    width: 100%;
}

.grid-container button {
    grid-column: 3 / 4; 
    align-self: start;
}


.slide-title {
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    color: darkred;
}

.slide-description {
    font-size: 0.725rem;
    color: darkslategray;
}

.subtitle{
    color: darkslategray;
}

/* Slider container is now styled in carousel.css */

/* Touch-friendly focus styles */
:focus-visible {
    outline: 3px solid rgba(74, 0, 255, 0.5);
    outline-offset: 2px;
}

/* Loading indicator */
.loading-indicator {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 200px;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 5px solid rgba(74, 0, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-fg);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive styles */
@media (max-width: 768px) {
    .grid-container {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto auto;
        max-width: 100%;
    }
    
    .grid-container label {
        grid-column: 1 / 2;
    }
    
    .grid-container input {
        grid-column: 2 / 3;
    }
    
    .grid-container button {
        grid-column: 1 / 3;
        grid-row: 3;
        width: 100%;
        margin-top: 0.5rem;
    }
    
    .subtitle {
        font-size: 0.9rem;
    }
    
    button, input {
        min-height: 48px; /* Even more touch-friendly on mobile */
    }
    
    .dot {
        width: 0.8rem;
        height: 0.8rem;
    }
}

@media (max-width: 480px) {
    .grid-container {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto auto auto;
    }
    
    .grid-container label {
        grid-column: 1;
    }
    
    .grid-container input {
        grid-column: 1;
    }
    
    .grid-container button {
        grid-column: 1;
        grid-row: 5;
    }
}