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

:root {
    --color-text:      #e8eaed;
    --color-bg:        #22242a;
    --color-btn-bg:    #303134;
    --color-search-bg: #6c7071;
}

body {
    font-family: Arial, sans-serif;
    background-color: var(--color-bg);
}

nav {
    border-bottom: 1px solid rgba(255,255,255,.08);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 16px;
    padding: 24px 32px;
}

#logo {
    font-size: 24px;
    margin-right: auto;
}

.nav-link,
#logo {
    color: var(--color-text);
    text-decoration: none;
}

.nav-link {
    transition: color .2s ease;
}

.nav-link:hover {
    color: #afb1b4;
}

.page-center {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 18px;
    margin-top: 80px;
}

.hero-logo {
    position: relative;
    display: inline-block;
}

.hero-image {
    width: 450px;
    height: auto;
    cursor: pointer;
}

.doodle-tag {
    color: #4487f6;
    font-size: 1.3rem;
    position: absolute;
    right: 57px;
    bottom: 27px;
}

.search-form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 24px;
}

.form-actions {
    display: flex;
    gap: 12px;
}

.input-with-icon {
    position: relative;
}

.input-with-icon i {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);

    color: #bdc1c6;
    font-size: 18px;
}

.search-bar {
    border: none;
    border-radius: 24px;
    background-color: var(--color-search-bg);
    color: var(--color-text);
    font-size: 16px;
    height: 46px;
    width: 600px;
    padding: 0 48px;

    transition: box-shadow .2s ease;
}

.search-bar:focus {
    outline: none;
    box-shadow: 0 0 0 1px rgba(255,255,255,.12);
}

.btn {
    border: 1px solid var(--color-btn-bg);
    border-radius: 8px;
    color: var(--color-text);
    background-color: var(--color-btn-bg);
    font-size: 14px;
    font-weight: 500;
    padding: 0 16px;
    height: 36px;
    text-align: center;

    transition: border-color .2s ease;
}

.btn-primary {
    border-color: #4487f6;
    background-color: #4487f6;
}

.btn:hover {
    border-color: var(--color-text);
    cursor: pointer;
}


/*=============================
  ====== Advanced Search ======
  =============================*/
.advanced-page {
    max-width: 900px;
    margin-top: 80px;
    padding: 4px 36px;
}

.advanced-title {
    color: var(--color-text);
    margin-bottom: 50px;
}

.advanced-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.advanced-row {
    display: grid;
    grid-template-columns: 220px 1fr;
    align-items: center;
    gap: 20px;
}

.advanced-row label {
    color: var(--color-text);
}

.advanced-row input {
    border: 1px solid var(--color-text);
    border-radius: 4px;
    background-color: transparent;
    color: var(--color-text);
    font-size: 16px;
    height: 46px;
    width: 600px;
    padding: 0 12px;

    transition: box-shadow .2s ease;
}

.advanced-row input:focus {
    outline: none;
    border-color: #4487f6;
    box-shadow: 0 0 0 1px rgba(255,255,255,.12);
}

.advanced-actions {
    display: flex;
    justify-content: flex-end;
}