:root {
    /* Color */
    --white: hsl(0, 0%, 100%);
    --white-opacity: hsla(0, 0%, 100%, 0.2);
    --black: hsl(0, 0%, 0%);
    --black-opacity: hsla(0, 0%, 0%, 0.2);
    --black-medium: hsl(0, 0%, 10%);
    --black-medium-opacity: hsla(0, 0%, 10%, 0.2);
    --ivory: hsl(69, 16%, 84%);
    --ivory-opacity: hsla(69, 16%, 84%, 0.2);
    --gray: hsl(0, 0%, 40%);
    --gray-opacity: hsla(0, 0%, 40%, 0.2);
    --cool-gray: hsl(0, 0%, 27%);
    --cool-gray-opacity: hsla(0, 0%, 27%, 0.2);
    --orange-red: hsl(16, 100%, 50%);
    --lime-green: hsl(120, 61%, 50%);
    --blue-gray: hsl(208, 32%, 67%);
    --blue-gray-opacity: hsla(208, 32%, 67%, 0.2);
    --gray-medium: hsl(0, 0%, 20%);
    --gray-medium-opacity: hsla(0, 0%, 20%, 0.2);
    --royal-blue: hsl(225, 73%, 57%);
    --royal-blue-opacity: hsla(225, 73%, 57%, 0.2);
    --dark-blue: hsl(234, 23%, 26%);
    --dark-blue-opacity: hsla(234, 23%, 26%, 0.2);

    /* Shadow */
    --shadow: hsla(0, 0%, 0%, 0.1);
    --box-shadow: 0 0px 20px -5px var(--shadow), 0 5px 10px 0px var(--shadow);

    /* Font Size */
    --font-size-xsmall: 0.8rem;
    --font-size-small: 0.9rem;
    --font-size-normal: 1rem;
    --font-size-medium: 1.4rem;
    --font-size-lg: 2rem;
    --font-size-xl: 2.4rem;
    --font-size-2xl: 4rem;
    --font-size-4xl: 4.4rem;
    --font-size-dynamic: clamp(var(--font-size-2xl), 5vw, var(--font-size-4xl));

    /* Font Weight */
    --font-weight-100: 100;
    --font-weight-200: 200;
    --font-weight-300: 300;
    --font-weight-400: 400;
    --font-weight-500: 500;
    --font-weight-600: 600;
    --font-weight-700: 700;
    --font-weight-800: 800;
    --font-weight-900: 900;
    --font-weight-bold: bold;
    --font-weight-bolder: bolder;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans Display', 'Segoe UI', sans-serif;
}

a, button {
    color: var(--black);
    cursor: revert;
    text-decoration: none;
}

ol, ul, menu {
    list-style: none;
    margin: 0;
    padding: 0;
}

img, video {
    max-width: 100%;
}

table {
    border-collapse: collapse;
}

input, textarea {
    -webkit-user-select: auto;
}

textarea {
    white-space: revert;
}

meter {
    -webkit-appearance: revert;
    appearance: revert;
}

::placeholder {
    color: unset;
}

:where([hidden]) {
    display: none;
}

:where([contenteditable]:not([contenteditable="false"])) {
    -moz-user-modify: read-write;
    -webkit-user-modify: read-write;
    overflow-wrap: break-word;
    -webkit-line-break: after-white-space;
    -webkit-user-select: auto;
}

:where([draggable="true"]) {
    -webkit-user-drag: element;
}

blockquote,
dl,
dd,
h1,
h2,
h3,
h4,
h5,
h6,
hr,
figure,
p,
pre {
  margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-size: inherit;
  font-weight: inherit;
}

img,
svg,
video,
canvas,
audio,
iframe,
embed,
object {
  display: block;
  vertical-align: middle;
}

button {
    margin: 0;
    padding: 0;
    font-family: inherit;
    font-size: var(--font-size-normal);
    border: none;
    text-align: center;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    margin: 0;
    padding: 15px 0;
    width: 100%;
    background: var(--white);
    display: flex;
    align-items: center;
    box-shadow: 0 0 10px 0 var(--shadow);
    z-index: 1;
}

header .header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

header .logo a {
    display: flex;
    align-items: center;
}

header .logo a img {
    margin-right: 5px;
    width: 35px;
    height: 35px;
}

header .logo a h1 {
    font-size: var(--font-size-medium);
    font-weight: var(--font-weight-400);
}

.nav-content {
    display: block;
}

.menu-button {
    display: none;
}

.nav-content-phone {
    display: none;
}

.navs a {
    margin-left: 20px;
    padding: 8px 0;
    font-size: var(--font-size-small);
    font-weight: var(--font-weight-500);
    transition: 200ms ease-in-out;
}

.navs a:hover {
    color: var(--dark-blue);
    border-bottom: 1px solid var(--black);
}

.navs a:hover.contact-button {
    color: var(--black-medium);
    border: 1px solid var(--royal-blue);
}

.navs .contact-button {
    padding: 8px 10px;
    color: var(--white);
    background-color: var(--royal-blue);
    font-weight: normal;
    border: 1px solid var(--royal-blue);
    border-radius: 5px;
    transition: 200ms ease-in-out;
}

.navs .contact-button:hover {
    color: var(--black);
    background-color: var(--white);
}

.nav-active {
    color: var(--dark-blue);
    border-bottom: 1px solid var(--black);
}

/* Conatiner */
.container {
    margin: auto;
    width: min(100% - 2%, 85%);
}

/* Padding */
.padding-y {
    padding-top: 6rem;
    padding-bottom: 6rem;
}

/* Hero */
.hero {
    width: 100%;
    height: 100vh;
    color: var(--dark-blue);
    background-image: url('../images/');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    background-blend-mode: hard-light;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.hero-content h2 {
    font-size: var(--font-size-dynamic);
}

.hero-content p {
    font-weight: var(--font-weight-500);
}

/* Work */
.work h2 {
    margin-bottom: 2.4rem;
    font-size: var(--font-size-xl);
    text-align: center;
}

.work-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    grid-template-rows: auto;
    gap: 20px;
}

.work-card {
    margin: 0;
    padding: 0;
    height: 250px;
    box-shadow: var(--box-shadow);
    border-radius: 5px;
    transition: 200ms ease-in-out;
    overflow: hidden;
}

.work-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.work-card:hover {
    transform: scale(1.05);
}

/* Services */
.services h2 {
    margin-bottom: 2.4rem;
    font-size: var(--font-size-xl);
    text-align: center;
}

.services-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    grid-template-rows: auto;
    gap: 20px;
}

.services-card {
    padding: 15px 30px;
    text-align: center;
    border-radius: 5px;
    box-shadow: var(--box-shadow);
    border-radius: 5px;
    transition: 200ms ease-in-out;
    cursor: default;
}

.services-card h3 {
    margin-bottom: 10px;
    color: var(--gray-medium);
    font-size: var(--font-size-medium);
    font-weight: var(--font-weight-500);
    display: block;
}

.services-card h3 svg {
    margin: 0 auto;
    width: 45px;
    height: 45px;
}

.services-card p {
    margin: 5px 0;
    color: var(--gray-medium);
    font-size: var(--font-size-normal);
    font-weight: var(--font-weight-500);
    text-align: left;
}

.services-card:hover {
    transform: scale(1.05);
}

/* Skills */
.skills h2 {
    margin-bottom: 2.4rem;
    font-size: var(--font-size-xl);
    text-align: center;
}

.skills-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    grid-template-rows: auto;
    gap: 20px;
}

.skills-card {
    padding: 4px;
    text-align: center;
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    transition: 200ms ease-in-out;
}

.skills-card:hover {
    transform: scale(1.05);
}

.skills-card img {
    margin: 0 auto;
    width: 40%;
    height: auto;
    object-fit: fill;
}

.skills-card h3 {
    margin: 0 auto;
    padding: 0 10px;
    font-size: var(--font-size-medium);
    font-weight: var(--font-weight-600);
}

/* About */
.about h2 {
    margin-bottom: 2.4rem;
    font-size: var(--font-size-xl);
    text-align: center;
}

.about-content {
    text-align: justify;
}

.about-content h3 {
    margin: 10px 0;
    font-size: var(--font-size-medium);
    font-weight: var(--font-weight-600);
    text-align: center;
}

.about-sub-content {
    display: flex;
    flex-direction: row-reverse;
    align-items: center;
    gap: 20px;
}

.about-sub-content p {
    padding: 0 10px;
    color: var(--cool-gray);
    text-align: justify;
    font-weight: var(--font-weight-500);
}

.about-sub-content img {
    width: 40%;
    height: auto;
    border-radius: 5px;
}

/* Testimonial */
.testimonial h2 {
    margin-bottom: 2.4rem;
    font-size: var(--font-size-xl);
    text-align: center;
}

.testimonial-content {
    position: relative;
    
}

.testimonial-slider {
    position: relative;
    display: flex;
    flex-wrap: nowrap;
    flex-direction: row;
}

.testimonial-slider .testimonial-sliderbuttons {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transform: translate(0, -50%);
}

.testimonial-slider .testimonial-sliderbuttons .prev, 
.testimonial-slider .testimonial-sliderbuttons .next  {
    padding: 10px;
    width: 60px;
    height: 60px;
    border-radius: 100%;
    cursor: pointer;
}

.testimonial-slider .testimonial-sliderbuttons .prev:hover, 
.testimonial-slider .testimonial-sliderbuttons .next:hover {
    background-color: var(--ivory-opacity);
}

.testimonial-slider .testimonial-sliderbuttons .prev:active, 
.testimonial-slider .testimonial-sliderbuttons .next:active {
    background-color: var(--blue-gray-opacity);
}

.testimonial-card {
    margin: 50px auto;
    width: 80%;
    text-align: center;
    display: none;
    place-content: center;
    user-select: none;
}

.testimonial-card img {
    margin: 0 auto;
    margin-bottom: 20px;
    width: 100px;
    height: 100px;
    object-fit: cover;
    object-position: top;
    border-radius: 100%;
    text-align: center;
    box-shadow: var(--box-shadow);
}

.testimonial-card h3 {
    margin: 10px 0;
    font-size: var(--font-size-medium);
    font-weight: var(--font-weight-500);
}
.testimonial-card p {
    color: var(--cool-gray);
    font-size: var(--font-size-normal);
    font-weight: var(--font-weight-500);
}

.active-card {
    display: grid;
}


/* Contact */
.contact h2 {
    margin-bottom: 2.4rem;
    font-size: var(--font-size-xl);
    text-align: center;
}

.contact-form {
    margin: 0 auto;
    width: 100%;
}

.contact-form form {
    margin: 50px auto;
    width: 50%;
}

.contact-form form label {
    font-size: var(--font-size-normal);
    font-weight: var(--font-weight-500);
    display: block;
}

.contact-form form input {
    margin: 5px 0;
    padding: 0 5px;
    width: 100%;
    height: 40px;
    font-size: var(--font-size-normal);
    font-family: inherit;
    display: block;
    border: var(--black) solid 1px;
    border-radius: 5px;
}

.contact-form form textarea {
    margin: 5px 0;
    padding: 5px;
    width: 100%;
    height: 250px;
    font-size: var(--font-size-normal);
    font-family: inherit;
    display: block;
    border: var(--black) solid 1px;
    border-radius: 5px;
}

.contact-form form button {
    margin: 10px 0;
    padding: 5px;
    width: 200px;
    height: 40px;
    color: var(--white);
    background-color: var(--royal-blue);
    font-size: var(--font-size-normal);
    font-weight: var(--font-weight-500);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--royal-blue);
    border-radius: 5px;
    cursor: pointer;
}

.contact-form form button:hover {
    color: var(--white);
    background-color: var(--blue-gray);
    transition: 200ms ease-in-out;
}

.contact-form form button .loading {
    width: 25px;
    height: 25px;
    border: 2px solid var(--white);
    border-bottom: 2px solid transparent;
    border-radius: 100px;
    animation: loading 500ms linear infinite;
}

/* Loading  */
@keyframes loading {
    to {
        transform: rotate(360deg);
    }
}

/* Footer */
footer {
    margin: 0;
    padding: 20px 0;
    background-color: var(--dark-blue);
}

.footer-content {
    color: var(--white);
    font-size: var(--font-size-xsmall);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-content .logo-info a {
    color: var(--white);
    display: flex;
    align-items: center;
}

footer .footer-socials .footer-social-navs {
    display: flex;
    align-items: center;
}

footer .footer-socials .footer-social-navs a {
    margin-left: 10px;
}

footer .footer-socials .footer-social-navs a svg {
    color: var(--white);
    fill: var(--white);
}

/* Top button */
.top-button {
    position: fixed;
    right: 20px;
    bottom: 70px;
    padding: 15px;
    background-color: var(--cool-gray-opacity);
    display: none;
    border-radius: 100%;
    cursor: pointer;
}

.top-button:hover {
    background-color: var(--blue-gray-opacity);
}

.top-button:active {
    background-color: var(--dark-blue-opacity);
}

/* Mobile Media Query */
@media (max-width: 500px) {
    header {
        display: block;
    }

    .nav-content {
        display: none;
    }

    .menu-button {
        display: block;
    }
    
    .nav-content-phone {
        margin-top: 10px;
        display: none;
    }

    .nav-content-phone .navs {
        padding: 10px 0;
        display: block;
    }
    
    .nav-content-phone .navs a {
        margin: 20px auto;
        font-size: var(--font-size-medium);
        display: block;
        width: max-content;
    }

    .active {
        display: block;
    }

    .hero {
        width: min(100% - 2%);
    }

    .hero .hero-content {
        text-align: center;
    }

    .hero .hero-content h2 {
        font-size: var(--font-size-lg)
    }

    .work h2, .skills h2, .about h2, .contact h2 {
        margin-bottom: 1.5rem;
        font-size: var(--font-size-lg)
    }

    .work-card {
        display: block;
    }

    .skills .skills-cards {
        align-items: center;
        justify-content: center;
    }

    .skills .skills-card img {
        width: 70px;
        height: 70px;
    }

    .skills .skills-card h2 {
        margin: 0;
        padding: 0 10px;
        font-size: var(--font-size-normal);
    }

    .about .about-sub-content {
        display: block;
    }

    .about .about-sub-content img {
        margin: 10px 0;
        width: 100%;
    }
    
    .contact .contact-form form {
        width: 100%;
    }

    .contact .contact-form form input {
        height: 40px;
    }

    .contact .contact-form form textarea {
        height: 250px;
    }

    .contact .contact-form form button {
        width: 100%;
        height: 40px;
        text-align: center;
    }
    
}

@media (max-width: 700px) {
    .hero {
        width: 100%;
    }

    .hero .hero-content h2 {
        font-size: var(--font-size-2xl);
    }

}