:root {

    /* Color Pallet */
    --color-bg-main: #F1EFEC;
    --color-accent-light: #D4C9BE;
    --color-accent-dark: #123458;
    --color-text-main: #030303;

    /* Typography */
    --font-family-base: "Questrial", sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 0.75rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;

    /* Spacing */
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
}

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

html {
    background-color: var(--color-bg-main);
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

a {
    text-decoration: none;
}

ul {
    list-style: none;
}

body {
    padding-top: 60px;
}

html, body {
    overflow-x: hidden;
}

section {
    margin: 3rem 0;
}

h2 {
    margin: var(--mt-lg) 0;
    padding: var(--spacing-md);
    color: var(--color-accent-dark);
}

/* Layout Utilities */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-sm {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.card {
    border-radius: 10px;
    padding: 20px;
}

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

.flex-column {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* Spacing Utilities */
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* Text Utilities */
.text-center { text-align: center; }
.text-bold { font-weight: bold; }
.text-main { color: var(--color-text-main); }
.text-accent-dark { color: var(--color-accent-dark); }
.text-sm { font-size: var(--font-size-sm); }
.text-md { font-size: var(--font-size-md); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }

/* Background Utilities */
.bg-main { background-color: var(--color-bg-main); }
.bg-accent-light { background-color: var(--color-accent-light); }
.bg-accent-dark { background-color: var(--color-accent-dark); }

/* Border Utilities */
.border-accent-dark { border-color: var(--color-accent-dark); }



/* Header */
.header {
    position: fixed;
    top:0;
    left: 0;
    width: 100%;
    height: 60px;
    z-index: 2000;
    border-bottom: 2px solid var(--color-accent-dark);
}

.hamburger-button {
    display: block;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    z-index: 1000;
}

.hamburger-line {
    width: 30px;
    height: 2px;
    margin: 5px 0;
    background-color: var(--color-text-main);
    transition: all 0.3s ease;
}

.hamburger-button.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-button.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger-button.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    display: none;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-md) 0;
    background-color: var(--color-accent-light);
    transition: max-height 0.3s ease;
    overflow: hidden;
    max-height: 0;
}

.mobile-menu.active {
    display: flex;
    max-height: 600px;
}

.mobile-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: center;
}

.mobile-menu ul li {
    margin: var(--spacing-md) 0;
}

.mobile-menu ul li a {
    color: var(--color-accent-dark);
    font-weight: 600;
}

.main-menu {
    display: none;
}

/* About Section */

.about-picture {
    width: 150px;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    border-radius: 50%;
    margin: var(--spacing-md) 0;
}

.about-picture img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}

.about p {
    margin: var(--mt-sm) 0;
    padding: var(--spacing-sm);
    line-height: 1.3;
    text-align: center;
}

/* Project Section */

.slide-show-container {
    position: relative;
    width: 100%;
    height: 500px;
    overflow: hidden;
}

.project-slide {
    position: absolute;
    width: 100%;
    height: 475px;
    opacity: 0;
    transform: translateX(100%);
    transition: opacity 0.5s ease, transform 0.5s ease;
    z-index: 0;
    justify-content: flex-end;
    align-items: flex-start;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    border-radius: 10px;
}

.project-slide.active {
    opacity: 1;
    transform: translateX(0);
    z-index: 2;
}

.project-slide.exit {
    opacity: 0;
    transform: translateX(-100%);
    z-index: 1;
}

.project-slide.active .project-details {
    max-width: 90%;
    background: var(--color-accent-light);
    flex-direction: column;
    margin: 0.3rem;
    border-left: 3px solid var(--color-accent-dark);
    border-radius: 8px;
    padding: 0.25rem 0.5rem;
    position: relative;
}

.project-slide.active .project-details h3, p, button{
    margin: var(--spacing-sm);
}

.project-slide.active .project-details h3 {
    color: var(--color-accent-dark);
}

.project-details button {
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: 15px;
    border: 2px solid var(--color-accent-dark);
    background-color: var(--color-bg-main);
}

.project-slide.active .tech-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.25rem;
}

.tech-tag {
    border-radius: 5px;
    background-color: var(--color-bg-main);
    padding: 0.1rem 0.3rem;
}

.finance-tracker-slide {
    background-image: url("assets/images/mobile-personal-finance-tracker-screenshot.png");
}

.portfolio-site-slide {
    background-image: url("assets/images/mobile-portfolio-site.png");
}

.dot-container {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin: var(--spacing-md) 0;
}

.dot {
    min-width: 3rem;
    min-height: 3rem;
    border-radius: 50%;
    background-color: var(--color-bg-main);
    cursor: pointer;
    position: relative;
    display: inline-block;
    opacity: 0.5;
    transition: opacity 0.3s ease;
}

.dot.active {
    background-color: var(--color-bg-main);
    opacity: 1;
}

.dot.active::before {
    content: "";
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--color-accent-dark);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Skills Section */

.skills .container h2 {
    color: var(--color-accent-dark);
}

.skills .container .card {
    display: flex;
    flex-direction: column;
    background-color: var(--color-accent-light);
    margin: var(--spacing-sm) 0;
    padding: var(--spacing-md) 0;
    border-left: 3px solid var(--color-accent-dark);
}

.skills .container .card h3 {
    width: 85%;
    margin: 5px 15px;
    border-bottom: 2px solid var(--color-accent-dark);
    color: var(--color-accent-dark);
}

.skills .container .card ul {
    list-style: square;
    margin: 5px 25px;
    padding-left: 5px;
}

/* Development Journey */

.development-journey .container p {
    text-align: center;
    padding: var(--spacing-sm);
}

.card-container {
    display: flex;
    flex-direction: column;
    border-left: 2px solid var(--color-accent-dark);
    margin: var(--spacing-md) 0;
}

.card-container .card h3{
    position: relative;
    padding-left: var(--spacing-md);
    color: var(--color-accent-dark);
}

.card-container .card h3::before {
    content: "";
    position: absolute;
    left: calc(-2rem);
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-accent-dark);
    border-radius: 50%;
    background-color: transparent;
}

.card-container .card h3::after {
    content: "";
    position: absolute;
    left: calc(-2rem + 6px);
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    background-color: var(--color-accent-dark);
    border-radius: 50%;
}

.card-container .card p {
    padding-left: 10px;
    margin-left: 10px;
}

.card-container .card ul {
    list-style: square;
    margin: 5px 25px;
    padding-left: 5px;
}

.card-container .card ul li {
    padding-left: var(--spacing-sm);
    margin-left: var(-spacing-sm);
}

/* Education */

.education .container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--spacing-sm);
}

.education .container .card {
    background-color: var(--color-accent-dark);
    border-left: 3px solid var(--color-accent-light);
    border-radius: 10px;
    color: var(--color-accent-light);
    height: 100px;
}

.contact .container {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact .container p {
    margin: 0 0.5rem;
    padding: 0 0.25rem;
    text-align: center;
}

.contact-form {
    background-color: var(--color-accent-dark);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    color: var(--color-accent-light);
    border-radius: 5px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin: 0.25rem 0;
    font-weight: bold;
}

.contact-form input, .contact-form textarea {
    padding: 0.5rem;
    border-radius: 5px;
    border: 1px solid var(--color-accent-light);
}

.contact-form textarea {
    height: 120px;
}

.contact-form .btn {
    background-color: var(--color-accent-light);
    margin-bottom: 1rem;
}

/* Connect Section */

.connect .container {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.connect .container .card {
    background-color: var(--color-accent-dark);
    border-left: 3px solid var(--color-accent-light);
    border-radius: 10px;
    margin: var(--spacing-md 0);
    padding: var(--spacing-md);
    color: var(--color-accent-light);
    position: relative;
}

.social-icon {
    font-size: 2rem;
    margin-right: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.card-link {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    text-indent: -9999px;
}

/* Footer */

.footer {
    color: var(--color-accent-light);
    text-align: center;
    padding: var(--spacing-md);
    border-top: 1px solid var(--color-accent-light);
    background-color: var(--color-accent-dark);
    width: 100%;

}

/* Floating Action Button */

.fab {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 3rem;
    height: 3rem;
    font-size: 1.5rem;
    background-color: var(--color-accent-dark);
    color: white;
    border: none;
    border-radius: 50%;
    box-shadow: 0 4px 6px rgba(0,0,0,0.2);
    cursor: pointer;
    display: none;
    z-index: 3000;
    transition: opacity 0.3s ease;
}

/* Form Status */

#form-status {
    margin-top: 1rem;
    font-weight: bold;
    color: green; /* success */
}
#form-status.error {
    color: red; /* error */
}

/* Tablet Media Query */

@media (min-width: 768px){
    main {
        margin: 0 auto;
        padding: 0 var(--spacing-md);
        max-width: 850px;
    }

    .container {
        margin: 0 var(--spacing-md);
        padding: 0 var(--spacing-md);
    }

    .project-slide.active .project-details {
        max-width: 300px;
    }

    .skills .container {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 1rem;
    }

    .skills .container h2 {
        grid-column: 1 / -1;
        text-align: center;
        margin-bottom: 1rem;
    }

    .education .container {
        display: grid;
        grid-template-columns: repeat(2, auto);
        gap: 1rem;
        justify-content: center;
    }

    .education .container h2 {
        grid-column: 1 / -1;
        text-align: center;
        margin-bottom: 1rem;
    }

    .education .container .card {
        width: 300px;
    }

    .contact .container p {
        width: 575px;
        margin: 0 auto;
    }

    .contact-form {
        width: 616px;
        margin: 1rem auto;
        padding: 0 var(--spacing-md);
    }

    .connect .container {
        display: grid;
        grid-template-columns: repeat(2, auto);
        gap: 1rem;
        justify-content: center;
    }

    .connect .container h2 {
        grid-column: 1 / -1;
        text-align: center;
        margin-bottom: 1rem;
    }

    .connect .container .card {
        width: 300px;
    }

    .finance-tracker-slide {
        background-image: url("assets/images/personal-finance-tracker-screenshot.png");
    }

    .portfolio-site-slide {
        background-image: url("assets/images/portfolio-site.png");
    }
}

/* Desktop Media Query */

@media (min-width: 1024px) {
    #my-name {
        padding-top: 1rem;
        font-size: 2rem;
        font-weight: bold;
    }

    .about h2 {
        font-size: var(--font-size-xl);
    }

    .hamburger-button {
        display: none;
    }

    .mobile-menu {
        display: none;
    }

    .main-menu {
        display: block;
        margin-top: 35px;
    }

    .main-menu ul {
        display: flex;
        gap: 1rem;
        padding: 0;
        margin: 0;
    }

    .main-menu ul li a {
        display: inline-block;
        color: var(--color-accent-dark);
        font-size: var(font-size-lg);
        font-weight: bold;
        transition: transform 0.3s ease;
        margin: 0 var(--spacing-sm);
    }

    .main-menu ul li a:hover {
        transform: scale(1.2);
    }

    .main-menu ul li a.active {
        border-radius: 2px;
        border-bottom: 3px solid var(--color-accent-dark);
    }

    .development-journey .container ul li {
        font-size: var(--font-size-md);
    }

    .finance-tracker-slide {
        background-image: url("assets/images/personal-finance-tracker-screenshot.png");
    }

    .portfolio-site-slide {
        background-image: url("assets/images/portfolio-site.png");
    }
}