/* CSS Reset and Base Styles */
:root {
    --color-primary: #1a73e8;
    --color-primary-dark: #1557b0;
    --color-error: #4f0910;
    --color-success: #28a745;
    --color-background: #ffffff;
    --color-text: #110101;
    --color-text-light: #666666;
    --color-border: #e0e0e0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --radius-sm: 4px;
    --radius-md: 8px;
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 2rem;
    --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-background: #1a1a1a;
        --color-text: #ffffff;
        --color-text-light: #cccccc;
        --color-border: #333333;
    }
}

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

html {
    view-transition-name: none;
}

body {
    font-family: var(--font-sans);
    line-height: 1.5;
    color: var(--color-text);
    background: var(--color-background);
}

/* Layout */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-md);
}

/* Typography */
h1, h2, h3 {
    line-height: 1.2;
    margin-bottom: var(--space-md);
    view-transition-name: header;

    &::view-transition-old,
    &::view-transition-new {
        animation-duration: 0.5s;
    }
}

/* Forms */
form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    max-width: 400px;
    margin: var(--space-lg) 0;

    & div {
        display: flex;
        flex-direction: column;
        gap: var(--space-xs);
    }
}

label {
    color: var(--color-text-light);
    font-size: 0.9rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"] {
    padding: var(--space-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    background: var(--color-background);
    color: var(--color-text);
    transition: border-color 0.2s, box-shadow 0.2s;

    &:focus {
        outline: none;
        border-color: var(--color-primary);
        box-shadow: 0 0 0 2px rgba(26,115,232,0.2);
    }
}

button {
    padding: var(--space-sm) var(--space-md);
    border: none;
    border-radius: var(--radius-sm);
    background: var(--color-primary);
    color: white;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;

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

    &:active {
        transform: translateY(1px);
    }

    &.secondary {
        background: transparent;
        border: 1px solid var(--color-primary);
        color: var(--color-primary);

        &:hover {
            background: rgba(26,115,232,0.1);
        }
    }

    &.error {
        background: var(--color-error);
        color: var(--color-text-light);

        &:hover {
            background: color-mix(in srgb, var(--color-error) 85%, black);
        }
    }
}

/* Tables */
.user-list {
    margin: var(--space-lg) 0;
    view-transition-name: user-list;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: var(--space-md);
    
    & th, & td {
        text-align: left;
        padding: var(--space-sm);
        border-bottom: 1px solid var(--color-border);
    }

    & th {
        color: var(--color-text-light);
        font-weight: normal;

        & .sort-button {
            background: none;
            border: none;
            color: var(--color-text-light);
            font-weight: normal;
            padding: 0;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: var(--space-xs);
            transition: color 0.2s;

            &:hover {
                color: var(--color-text);
            }

            & .sort-icon {
                font-size: 0.8em;
                opacity: 0.5;
            }

            &[aria-sort='ascending'] .sort-icon {
                opacity: 1;
                transform: rotate(180deg);
            }

            &[aria-sort='descending'] .sort-icon {
                opacity: 1;
            }
        }
    }

    & tr:hover {
        background: color-mix(in srgb, var(--color-primary) 5%, transparent);
    }
}

.user-search {
    margin-bottom: var(--space-md);
    
    & input {
        width: 100%;
        max-width: 300px;
    }
}

/* Modal */
.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1000;
    width: 90%;
    max-width: 500px;
    background: var(--color-background);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    view-transition-name: modal;

    & article {
        padding: var(--space-lg);
    }

    & header {
        margin-bottom: var(--space-md);
    }

    & footer {
        display: flex;
        gap: var(--space-md);
        justify-content: flex-end;
        border-top: 1px solid var(--color-border);
        padding-top: var(--space-md);
    }
}

/* Error Messages */
.error {
    color: var(--color-error);
    margin-bottom: var(--space-md);
}

/* Links */
a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s;

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

    &[role="button"] {
        display: inline-block;
        padding: var(--space-sm) var(--space-md);
        border-radius: var(--radius-sm);
        background: var(--color-primary);
        color: white;
        text-align: center;
        transition: background-color 0.2s;

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

        &.secondary {
            background: transparent;
            border: 1px solid var(--color-primary);
            color: var(--color-primary);

            &:hover {
                background: rgba(26,115,232,0.1);
            }
        }
    }
}

/* View Transitions */
::view-transition-old(root),
::view-transition-new(root) {
    animation-duration: 0.5s;
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slide-from-right {
    from { transform: translateX(30px); }
    to { transform: translateX(0); }
}

.htmx-settling {
    opacity: 0;
    animation: fade-in 0.3s ease forwards;
}

/* HTMX Delete Animation */
tr.htmx-swapping td {
    opacity: 0;
    transition: opacity 1s ease-out;
}