:root {
    --color-text-primary: #1f2937;
    --color-text-secondary: #6B7280;
    --color-text-dark: #111827;
    --color-text-light: #9CA3AF;
    --color-background-light: #ffffff;
    --color-background-dark: #f9fafb;
    --color-border: #D1D5DB;
    --color-focus-ring: #3B82F6;

    --spacing-xs: 0.2em;
    --spacing-sm: 0.4em;
    --spacing-md: 0.75rem;
    --spacing-lg: 1rem;
    --spacing-xl: 1.5em;
    --spacing-xxl: 2rem;
    --spacing-xxxl: 5rem;
    --spacing-xxxxl: 6rem;

    --font-size-sm: 0.75rem;
    --font-size-md: 0.875rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 2rem;
    --font-size-xxl: 6rem;

    --border-radius-sm: 3px;
    --border-radius-md: 0.5rem;
    --border-radius-full: 9999px;
}

html, body {
    height: 100%;
    box-sizing: border-box;
}

body {
    background-color: var(--color-background-light);
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
    color: var(--color-text-primary);
}

/* SECTION - Page Block */
.page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100%;
    transition: justify-content 0.3s ease-in-out;
}

.search-active {
    justify-content: flex-start;
    padding-top: var(--spacing-md);
    min-height: unset;
    height: auto;
}

/* SECTION - Search Block */

/* SECTION - Header Block */
.header {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    margin-bottom: var(--spacing-xxxl);
}

.header__title-link {
    text-decoration: none;
    color: inherit;
}

.header__title {
    font-size: var(--font-size-xxl);
    line-height: 1;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xxl);
    margin-top: 0;
}

/* SECTION - Header Block - Search Mode Active */
.search-active .header {
    flex-direction: row;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: 0;
}

.search-active .header__title {
    font-size: var(--font-size-xl);
    margin-bottom: 0.5rem;
}
/* !SECTION - Header Block - Search Mode Active */


.search {
    width: 100%;
    max-width: 32rem;
    display: flex;
    flex-direction: column;
}

.search__container {
    position: relative;
    display: flex;
    align-items: center;
}

.search__icon-wrapper {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    padding-left: var(--spacing-md);
    display: flex;
    align-items: center;
    pointer-events: none;
}

.search__icon {
    height: var(--spacing-lg);
    width: var(--spacing-lg);
    color: var(--color-text-light);
}

.search__input {
    display: block;
    width: 100%;
    background-color: var(--color-background-light);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-full);
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    padding-left: 2.5rem; /* Specific value for icon space */
    padding-right: 3rem; /* Specific value for button space */
    color: var(--color-text-primary);
    box-sizing: border-box;
    appearance: none;
}

.search__input::placeholder {
    color: var(--color-text-secondary);
}

.search__input:focus {
    outline: 2px solid transparent;
    outline-offset: 2px;
    border-color: transparent;
    box-shadow: 0 0 0 2px var(--color-focus-ring);
}

.search__button {
    position: absolute;
    top: 0;
    bottom: 0;
    right: 0;
    padding-right: var(--spacing-md);
    display: flex;
    align-items: center;
    background: none;
    border: none;
    cursor: pointer;
}

.search__submit-icon {
    height: var(--spacing-lg);
    width: var(--spacing-lg);
    color: var(--color-text-primary);
    transition: color 0.15s ease-in-out;
}

.search__button:hover .search__submit-icon {
    color: var(--color-text-dark);
}

.search__under-bar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--spacing-sm);
    padding: 0 var(--spacing-sm);
}

.search__under-bar__open-settings-button {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    color: var(--color-text-secondary);
}

.search__under-bar__open-settings-button:hover {
    color: var(--color-text-primary);
}

.search__settings-container {
    display: none; /* Hidden by default */
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.search__settings-container--visible {
    display: flex;
}

/* SECTION - Search Block - Search Mode Active */

.search-active .search {
    max-width: 48rem;
}

.search-active .search__main-container {
    width: 100%;
    display: flex;
    flex-direction: row;
    gap: var(--spacing-md);
    align-items: center;
}

.search-active .search__bar-and-under-bar {
    width: 100%;
}

/* !SECTION - Search Block - Search Mode Active */
/* !SECTION - Search Block */
/* !SECTION - Header Block */
/* !SECTION - Page Block */

/* SECTION - Response Block */
#response-wrapper {
    display: none;
    width: 100%;
    max-width: 48rem;
    margin-top: var(--spacing-xxl);
}

.response-block {
    padding: var(--spacing-md);
    background-color: var(--color-background-dark);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    line-height: 1.6;
}

.search-active #response-wrapper {
    margin-top: var(--spacing-lg);
}

.response-block h1,
.response-block h2,
.response-block h3 {
    margin-block-start: 0;
    margin-top: 0;
    margin-bottom: 0.5em;
    font-weight: 600;
}

.response-block p {
    margin: 0;
    padding: 0;
}

.response-block ul,
.response-block ol {
    padding-left: var(--spacing-xl);
    margin-bottom: 1em;
}

.response-block code {
    background-color: var(--color-border);
    padding: var(--spacing-xs) var(--spacing-sm);
    margin: 0;
    font-size: 85%;
    border-radius: var(--border-radius-sm);
}

.response-block pre {
    background-color: var(--color-border);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    overflow-x: auto;
}

.response-block pre code {
    background-color: transparent;
    padding: 0;
    margin: 0;
    font-size: inherit;
    border-radius: 0;
}

.response__footer {
    display: flex;
    align-items: center;
    margin-top: var(--spacing-sm);
    width: 100%;
}

.response__footer {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
    font-size: 0.8em;
    color: #888;
}

/* SECTION - API Response Time Element (inside Response Block) */

.response__model-used {
    margin-right: auto;
    color: #555;
    align-self: flex-end;
    padding-bottom: 0;
}

.response__time {
    order: 2;
    margin-left: auto;
    align-self: flex-end;
    padding-bottom: 0;
}

.response__time {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* !SECTION - API Response Time Element (inside Response Block) */

/* SECTION - Detailed Answer button*/
.detailed-answer-button {
    color: #3B82F6;
    text-decoration: none;
    font-size: var(--font-size-md);
    font-weight: bold;
}

.detailed-answer-button:hover {
    text-decoration: underline;
}

.detailed-response {
    display: none;
    margin-top: var(--spacing-sm);
}

/* !SECTION - Detailed Answer button*/
/* !SECTION - Response Block */

/* SECTION - Reuseable Elements */
/* ANCHOR - Load Time Element */
.page__load-time {
    font-size: var(--font-size-md);
    color: var(--color-text-secondary);
}

.search-active .page__load-time {
    display: none;
}
/* !SECTION - Reuseable Elements */