:root, :root.one {
    --primary-color: #3B3A30;
    --secondary-color: #5C5947;
    --tertiary-color: #7D7A5F;
    --quaternary-color: #9E9A77;
    --quinary-color: #BFB98F;
    --senary-color: #E0D9A7;
    --septenary-color: #F3E9B7;
    --octonary-color: #FFF5C7;
    --nonary-color: #FFFAE7;
    --denary-color: #FFFFF5;
}

:root.two {
    --primary-color: #0D0D0D;
    --secondary-color: #262626;
    --tertiary-color: #404040;
    --quaternary-color: #595959;
    --quinary-color: #737373;
    --senary-color: #8C8C8C;
    --septenary-color: #A6A6A6;
    --octonary-color: #BFBFBF;
    --nonary-color: #D9D9D9;
    --denary-color: #d5d5d5;
}

:root.three {
    --primary-color: #663300;
    --secondary-color: #804000;
    --tertiary-color: #994d00;
    --quaternary-color: #b35900;
    --quinary-color: #cc6600;
    --senary-color: #e67300;
    --septenary-color: #ff8000;
    --octonary-color: #ff9933;
    --nonary-color: #ffb366;
    --denary-color: #ffcc99;
}

:root.four {
    --primary-color: #FFA700;
    --secondary-color: #e59004;
    --tertiary-color: #cc7908;
    --quaternary-color: #b26210;
    --quinary-color: #994b18;
    --senary-color: #7f3420;
    --septenary-color: #661d28;
    --octonary-color: #4c0630;
    --nonary-color: #330039;
    --denary-color: #2d0b0b;
}

:root.five {
    --primary-color: #ffcccc;
    --secondary-color: #ffb3b3;
    --tertiary-color: #ff9999;
    --quaternary-color: #ff8080;
    --quinary-color: #ff6666;
    --senary-color: #eb4d4d;
    --septenary-color: #d43939;
    --octonary-color: #bc2626;
    --nonary-color: #a31313;
    --denary-color: #8B0000;
}

:root.six {
    --primary-color: #FF7F7F;
    --secondary-color: #FF9F7F;
    --tertiary-color: #FFBF7F;
    --quaternary-color: #FFDF7F;
    --quinary-color: #FFFF7F;
    --senary-color: #FFFF9F;
    --septenary-color: #FFFFBF;
    --octonary-color: #FFFFDF;
    --nonary-color: #FFFFFF;
    --denary-color: #FFF5EE;
}

/* General */
.blur {
    filter: blur(2px);
}

html::-webkit-scrollbar {
    display: none;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', 'Kalnia', sans-serif;
    margin: 0;
    padding: 120px 0 0;
    line-height: 1.6;
    background-color: var(--denary-color);
    color: var(--primary-color);
    transition: background-color 0.5s ease;
}

h1, h2 {
    font-family: 'Kalnia';
}

h3 {
    margin-top: 0;
}

a:-webkit-any-link {
    text-decoration: none;
    color: inherit;
}

/* Header Styles */
header {
    background: var(--primary-color);
    color: var(--denary-color);
    padding: 1rem 0;
    box-shadow: 0px 2px 10px 5px rgba(0, 0, 0, 0.1);
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

header.fullscreen {
    height: 100vh;
    animation: headerSlideDown1 0.85s ease-out;
}

header.top {
    height: auto;
    justify-content: flex-start;
    border-radius: 0 0 75px 75px;
    animation: headerSlideDown 0.5s ease-out;
}

@keyframes headerSlideDown1 {
    from {
        transform: translateY(-85%);
    }
    to {
        transform: translateY(0);
    }
}

@keyframes headerSlideDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

header.animated {
    opacity: 1;
}

header .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    text-align: center;
}

header .logo {
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
}

header .logo h1 {
    margin: 0;
    font-size: 2.5rem;
    animation: fadeInUp 0.8s ease-out;
}

header .logo p {
    margin: 0;
    font-size: 1.2rem;
    animation: fadeInUp 0.8s ease-out 0.2s;
    opacity: 0;
    animation-fill-mode: forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

header nav {
    margin-top: 1rem;
}

header nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
}

header nav ul li {
    margin: 0 15px;
    animation: fadeInRight 0.8s ease-out;
    animation-fill-mode: both;
}

header nav ul li:nth-child(1) { animation-delay: 0.1s; }
header nav ul li:nth-child(2) { animation-delay: 0.2s; }
header nav ul li:nth-child(3) { animation-delay: 0.3s; }
header nav ul li:nth-child(4) { animation-delay: 0.4s; }

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

header nav ul li a {
    color: var(--denary-color);
    text-decoration: none;
    font-size: 1.5rem;
    transition: color 0.3s;
}

header nav ul li a:hover {
    color: var(--quinary-color);
}

header nav ul li a i {
    font-size: 1.5rem;
}

header .social-links {
    margin-top: unset;
    display: flex;
    justify-content: center;
}

header .social-links a {
    color: var(--denary-color);
    font-size: 1.8rem;
    margin: 0 15px;
}

header .social-links a:hover {
    color: var(--quinary-color);
}

/* Section Styles */
section {
    display: none;
    transform: translateY(0);
}

section.active {
    display: block;
    animation: fadeIn 1.2s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(25px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Box Container */
.box-container {
    padding: 2rem;
    max-width: 85vw;
    margin: 60px auto;
    background: var(--denary-color);
    box-shadow: 0px 4px 10px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
    border-radius: 8px;
    transform: translateY(0);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.box-container.animated {
    opacity: 1;
}

.box-container h2 {
    margin-top: 0;
    font-size: 2rem;
    color: var(--primary-color);
}

.box-container form {
    display: flex;
    flex-direction: column;
}

.box-container form input,
.box-container form textarea {
    margin-bottom: 1rem;
    padding: 0.75rem;
    border: 1px solid var(--secondary-color);
    border-radius: 5px;
    font-size: 1rem;
    background-color: var(--denary-color);
    color: var(--primary-color);
}

.box-container form button {
    padding: 0.75rem;
    border: none;
    background: var(--primary-color);
    color: var(--denary-color);
    cursor: pointer;
    font-size: 1rem;
    border-radius: 4px;
    transition: background 0.3s;
}

.box-container form button:hover {
    background: var(--secondary-color);
}

/* Service Card Styles */
.service-card {
    background: var(--octonary-color);
    padding: 1.5rem;
    margin: 1rem 0;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    text-align: justify;
}

/* nested */
.service-card > .service-card:not(.service-card .service-card .service-card) {
    background: var(--nonary-color);
    padding: 1.5rem;
    margin: 1rem 0;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    text-align: justify;
}


.service-card:hover {
    transform: translateY(-5px) scale(1.015);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.service-card h3 a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s;
}

.service-card h3 a:hover {
    color: var(--secondary-color);
}

.service-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.service-card ul li {
    margin: 5px 0;
    display: flex;
    align-items: center;
    transition: transform 0.3s ease;
}

.service-card ul li:hover {
    transform: translateX(5px);
}

.service-card ul li i,
.service-card h3 i {
    margin-right: 10px;
    color: var(--secondary-color);
    vertical-align: middle;
    transition: transform 0.3s ease;
}

.service-card ul li:hover i,
.service-card h3:hover i {
    transform: scale(1.2) rotate(10deg);
}

.service-card p {
    margin: 0.45rem auto;
    transition: color 0.3s ease;
}

.service-card:hover p {
    color: var(--secondary-color);
}

/* Other Styles */
.social-links a {
    margin: 0 10px;
    text-decoration: none;
    font-size: 1.6rem;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.social-links a:hover {
    color: var(--quinary-color);
    transform: scale(1.2) rotate(10deg);
}

.color-switcher {
    display: flex;
    justify-content: center;
    margin: 1rem 0rem 0.5rem;
}

.color-btn {
    background: none;
    border: none;
    cursor: pointer;
    margin: 0 5px;
    font-size: 2rem;
    transition: all 0.3s ease;
    color: var(--primary-color);
}

.color-btn:hover {
    transform: translateY(-5px) rotate(20deg) scale(1.1);
    color: var(--secondary-color);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.4);
    transition: opacity 0.3s ease;
}

.modal-content {
    background-color: var(--denary-color);
    margin: auto;
    padding: 20px;
    border: 3px solid var(--primary-color);
    width: 80%;
    max-width: 500px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(1.1);
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

.modal.show .modal-content {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.close-button {
    color: var(--primary-color);
    float: right;
    font-size: 28px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.close-button:hover,
.close-button:focus {
    color: var(--secondary-color);
    text-decoration: none;
    cursor: pointer;
    transform: rotate(90deg);
}

div#projects-container,
div#service-container {
    margin: unset;
    padding: unset;
    background-color: unset;
    border: unset;
    box-shadow: unset;
}

div#projects-container:hover,
div#service-container:hover {
    transform: none;
}

/* Staggered animation for project items */
#projects-container .project-item {
    opacity: 0;
    transform: translateX(-20px);
    transition: all 0.5s ease;
}

#projects-container .project-item.animated {
    opacity: 1;
    transform: translateX(0);
}

#projects-container .project-item:nth-child(odd) {
    transform: translateX(20px);
}

div#skills {
    display: flex;
    justify-content: space-between;
    flex-direction: column;
    flex-wrap: wrap;
}

/* animation for skill items */
#skills .skill-item {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}

#skills .skill-item.animated {
    opacity: 1;
    transform: translateY(0);
}

/* details button */
.details-button {
    text-align: center;
    margin-top: 1rem;
}

.details-button a {
    display: inline-block;
    text-decoration: none;
}

.details-button button {
    padding: 0.75rem 1.5rem;
    background-color: var(--octonary-color);
    color: var(--primary-color);
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.details-button button:hover {
    background-color: var(--primary-color);
    color: var(--octonary-color);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.details-button button:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--quinary-color);
}

/* Pulse animation */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.highlight-pulse {
    animation: pulse 2s infinite;
}

/* Typing animation for headings */
.typing-animation {
    overflow: hidden;
    border-right: .15em solid var(--primary-color);
    white-space: nowrap;
    margin: 0 auto;
    letter-spacing: .15em;
    animation:
        typing 3.5s steps(40, end),
        blink-caret .75s step-end infinite;
}

@keyframes typing {
    from { width: 0 }
    to { width: 100% }
}

@keyframes blink-caret {
    from, to { border-color: transparent }
    50% { border-color: var(--primary-color); }
}

/* Floating animation */
@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}

.floating {
    animation: float 4s ease-in-out infinite;
}

/* Slide in animation for content sections */
@keyframes slideInLeft {
    from {
        transform: translateX(-300px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(300px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.slide-in-left {
    animation: slideInLeft 0.8s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.8s ease-out;
}

/* Glowing effect for buttons or important elements */
@keyframes glow {
    0% {
        box-shadow: 0 0 5px var(--primary-color);
    }
    50% {
        box-shadow: 0 0 20px var(--primary-color);
    }
    100% {
        box-shadow: 0 0 5px var(--primary-color);
    }
}

.glow {
    animation: glow 2s infinite;
}

/* Flip card effect */
.flip-card {
    perspective: 1000px;
}

.flip-card-inner {
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.flip-card:hover .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front, .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
}

.flip-card-back {
    transform: rotateY(180deg);
}

/* Loading spinner animation */
@keyframes spinner {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 5px solid var(--octonary-color);
    border-top: 5px solid var(--primary-color);
    border-radius: 50%;
    animation: spinner 1s linear infinite;
}

/* Progressive reveal animation for text */
@keyframes revealText {
    from {
        clip-path: inset(0 100% 0 0);
    }
    to {
        clip-path: inset(0 0 0 0);
    }
}

.reveal-text {
    animation: revealText 1s cubic-bezier(0.77, 0, 0.175, 1) forwards;
}

/* Parallax scrolling effect */
.parallax {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

#search-input {
    width: -webkit-fill-available;
    padding: 0.75rem;
    margin-bottom: 1rem;
    border: 4px solid var(--primary-color);
    border-radius: 25px;
    font-size: 1rem;
    background-color: var(--octonary-color);
    color: var(--primary-color);
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

#search-input:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px var(--quinary-color);
}

#search-input::placeholder {
    color: var(--tertiary-color);
    opacity: 0.7;
}

/* back to top style */
#backToTopBtn {
    max-width: 20vw;
    position: fixed;
    bottom: 3%;
    right: -100px;
    z-index: 99;
    outline: none;
    padding: 0.75rem 1.5rem;
    background-color: var(--secondary-color);
    border: none;
    border-top-left-radius: 25px;
    border-bottom-left-radius: 25px;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    font-size: 1rem;
    cursor: pointer;
    opacity: 0;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

#backToTopBtn img {
    width: 40px;
    height: auto;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

#backToTopBtn:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* Class to show the button with slide-in effect */
#backToTopBtn.show {
    right: -0.01%;
    opacity: 1;
}

/* Class to hide the button with slide-out effect */
#backToTopBtn.hide {
    right: -100px;
    opacity: 0;
}


/* Media Queries */
@media (max-width: 640px) {
    body {
        font-size: 12px;
        line-height: 1.5;
    }

    .container {
        max-width: 100%;
        padding: 20px;
    }

    .section {
        padding: 25px 20px;
    }

    h1, h2, h3, h4, h5, h6 {
        margin-bottom: 10px;
    }

    p {
        margin-bottom: 20px;
    }

    ul, ol {
        margin-bottom: 20px;
    }

    li {
        margin-bottom: 15px;
    }

    h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 19px;
    }

    p {
        font-size: 11px;
    }

    header nav ul li {
        margin: 0 10px;
    }

    header .logo {
        margin-bottom: 0.5rem;
    }

    header .container {
        padding: 0 0.5rem;
    }

    header .logo h1 {
        font-size: 1.8rem;
        margin-bottom: 0.5rem;
    }

    header .logo p {
        font-size: 0.8rem;
        margin-bottom: 1rem;
    }

    header .social-links a, .social-links a {
        margin: 0 10px;
        font-size: 1.65rem;
    }

    header nav {
        margin-top: 0.5rem;
    }

    header.top {
        border-radius: 0 0 35px 35px;
    }

    .box-container {
        padding: 1rem;
        max-width: 95vw;
        margin: 0 auto;
    }

    .box-container h2 {
        font-size: 1.2rem;
    }

    .box-container form input,
    .box-container form textarea,
    .box-container form button {
        font-size: 0.7rem;
    }

    #search-input {
        font-size: 0.9rem;
        padding: 0.6rem;
    }

    .service-card,
    .project-item {
        transform: none !important;
    }

    .floating,
    .shake,
    .bounce {
        animation: none;
    }
}