:root {
    --ease-speed: 0.5s;
    --max-width: min(90%, 60rem);
    --nav-height: max(1vh, 48px);
}

:root[data-theme="light"] {
    color-scheme: light;
    --primary-color: #401212;
    --accent-color: #aa2211;
    --text-color: #334155;
    --text-light-color: #5b6473;
    --bg-color: #f1f3f8;
    --bg-accent-color: #fffafa;
    --card-bg-color: #ffffffeb;
    --border-color: #d7dee7;
    --shadow-color: #0f172a14;
}

:root[data-theme="dark"] {
    color-scheme: dark;
    --primary-color: #f8fafc;
    --accent-color: #f34937;
    --text-color: #e5ebf1;
    --text-light-color: #94a3b8;
    --bg-color: #0f070e;
    --bg-accent-color: #180c15;
    --card-bg-color: #0f172ae0;
    --border-color: #1c192e;
    --shadow-color: #02061759;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    scroll-margin-top: calc(1.25 * var(--nav-height));
    transition:
        background-color var(--ease-speed) ease,
        border-color var(--ease-speed) ease,
        box-shadow var(--ease-speed) ease,
        color var(--ease-speed) ease,
        text-decoration-color var(--ease-speed) ease;
}

html {
    scroll-behavior: smooth;
}

body {
    background:
        radial-gradient(circle at top, var(--bg-accent-color), transparent 36%),
        linear-gradient(var(--bg-color) 50%, var(--bg-accent-color) 95%);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    padding: 0;
}

.content-wrapper {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    min-height: 100vh;
}

main {
    width: 100%;
}

.container {
    margin: 0 auto;
    max-width: var(--max-width);
    padding: 2% 2%;
}

a {
    color: inherit;
    text-decoration: underline var(--accent-color);
    text-decoration-color: var(--accent-color);
    text-underline-offset: 0.15rem;
}

a:hover {
    color: var(--accent-color);
}


/* Header Section */

header {
    align-items: center;
    backdrop-filter: blur(8px);
    background: linear-gradient(
        to bottom,
        var(--bg-color),
        color-mix(in srgb, var(--bg-color), transparent 10%) 75%,
        color-mix(in srgb, var(--bg-color), transparent 25%)
    );
    border-bottom: 2px solid var(--border-color);
    box-shadow: 0 2px 4px var(--shadow-color);
    margin-bottom: 2%;
    position: sticky;
    text-align: center;
    top: 0;
    z-index: 1001;
}

@media (max-width: 600px) {
    header {
        padding-left: 0;
        padding-right: 0;
        padding-top: 1%;
    }
}


/* Navigation Bar */

nav {
    align-items: flex-start;
    background: color-mix(in srgb, var(--bg-color), transparent 2%);
    border: 1px solid var(--border-color);
    box-shadow: 0 18px 40px var(--shadow-color);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-width: min(12rem, calc(100vw - 2rem));
    opacity: 0;
    padding: 1rem 1.25rem;
    pointer-events: none;
    position: absolute;
    top: calc(var(--nav-height) + 0.25rem);
    transform: scaleY(0.96) translateY(-0.35rem);
    transform-origin: top right;
    transition: transform 0.16s ease-out, opacity 0.16s ease-out;
    z-index: 1001;
}

nav.open {
    pointer-events: auto;
    transform: scaleY(1) translateY(0);
    opacity: 1;
}

.nav-bar {
    align-items: center;
    display: flex;
    gap: 1rem;
    height: var(--nav-height);
    justify-content: space-between;
    margin: 0 auto;
    max-width: var(--max-width);
}

.nav-logo a {
    color: var(--primary-color);
    display: inline-block;
    font-size: 1.2rem;
    font-weight: 600;
    line-height: 1.2rem;
    text-decoration: none;
}

.nav-button {
    color: var(--muted-text-color);
    font-size: 0.9rem;
    letter-spacing: 0.08em;
    position: relative;
    text-decoration: none;
    text-transform: uppercase;
}

.nav-button::after {
    background: var(--accent-color);
    bottom: 0;
    content: "";
    height: 0.15rem;
    left: 0;
    position: absolute;
    transition: width 0.2s ease-out;
    width: 0;
}

.nav-button:hover {
    color: var(--text-color);
}

.nav-button:hover::after {
    width: 100%;
}

.page-nav-links {
    align-items: center;
    display: flex;
    flex-direction: row;
    gap: 1rem;
    margin-left: auto;
}

.page-nav-links a {
    text-decoration: none;
}

.nav-links {
    align-items: flex-start;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    justify-content: left;
}

.nav-links a {
    text-decoration: none;
}

.nav-links span {
    border-bottom: 2px solid var(--border-color);
    height: 0.05rem;
    margin-bottom: 0.5rem;
    margin-top: 0.5rem;
    width: 100%;
}


/* Mobile Navigation Toggle */

.nav-toggle {
    display: flex;
    cursor: pointer;
    flex-direction: column;
    justify-content: center;
}

.nav-toggle span {
    background: var(--text-color);
    border-radius: 999px;
    height: 0.125rem;
    width: 1.25rem;
}

.nav-toggle span:nth-child(2) {
    margin: 0.25rem 0;
}

@media (max-width: 800px) {
    .nav-divide {
        display: none;
    }

    .nav-logo-extra {
        display: none;
    }
}

@media (max-width: 700px) {
    nav {
        justify-content: center;
        left: 0;
        min-width: 0;
        right: 0;
        transform-origin: top center;
    }

    nav.open {
        transform: scaleY(1) translateY(0);
    }

    .page-nav-links {
        display: none;
    }

    nav .page-nav-links {
        border-bottom: 2px solid var(--border-color);
        display: flex;
        flex-direction: row;
        gap: 0.75rem;
        justify-content: center;
        margin: auto;
        padding-bottom: 1rem;
    }

    header.open {
        backdrop-filter: none;
        background-color: var(--bg-color);
        transition: backdrop-filter var(--ease-speed) ease;
    }
}


/* Dark Theme Toggle Button */

.theme-toggle {
    align-items: center;
    background: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: 999px;
    box-shadow: 0 8px 20px var(--shadow-color);
    color: var(--primary-color);
    cursor: pointer;
    display: inline-flex;
    height: 2.5rem;
    justify-content: center;
    padding: 0;
    transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
    width: 2.5rem;
}

.theme-toggle:hover {
    border-color: var(--accent-color);
    transform: translateY(-1px);
}

.theme-toggle:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--accent-color) 35%, transparent);
    outline-offset: 3px;
}

.theme-toggle__icon {
    display: block;
    height: 1.5rem;
    object-fit: contain;
    width: 1.5rem;
}

.sr-only {
    border: 0;
    clip: rect(0, 0, 0, 0);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    white-space: nowrap;
    width: 1px;
}


/* Top Section */

.top {
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 5%;
    padding: 0 10% 5%;
    position: relative;
    text-align: center;
}

.top h1 {
    color: var(--primary-color);
    font-size: 2.5rem;
}

.top p {
    color: var(--text-light-color);
    font-size: 1.1rem;
}

.contact-info {
    color: var(--text-light-color);
    display: flex;
    flex-wrap: wrap;
    font-size: 0.95rem;
    justify-content: center;
    margin-top: 10px;
}

.contact-info span:not(:last-child):after {
    content: "|";
    margin: 1rem;
}

@media (max-width: 600px) {
    .contact-info {
        flex-direction: column;
    }

    .contact-info span {
        margin-top: 1%;
    }

    .contact-info span:not(:last-child):after {
        display: none;
    }
}


/* Section Layout */

section {
    margin-bottom: 6%;
}

h2 {
    border-left: 0.25rem solid var(--accent-color);
    color: var(--primary-color);
    font-size: 1.5rem;
    letter-spacing: 0.05em;
    margin-bottom: 2%;
    padding-left: 1%;
    text-transform: uppercase;
}


/* Education & Experience Grid */

.grid-item {
    background: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px var(--shadow-color);
    margin-bottom: 1.5%;
    padding: 2%;
}

.grid-header {
    align-items: flex-start;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: 1%;
}

.grid-header h3 {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.date-location {
    color: var(--text-light-color);
    font-size: 0.9rem;
    text-align: right;
}

.additional-info {
    color: var(--text-light-color);
    font-size: 0.8rem;
    font-style: italic;
}

@media (max-width: 700px) {
    .grid-header {
        flex-direction: column;
    }

    .date-location {
        margin-top: 0.5%;
        text-align: left;
    }
}


/* Projects Section */

.project-card {
    background: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px var(--shadow-color);
    margin-bottom: 2%;
    padding: 2.5%;
}

.project-card h3 {
    color: var(--primary-color);
    margin-bottom: 5px;
}

.project-bullets {
    margin-left: 2%;
    margin-bottom: 1.5%;
}

.project-bullets li {
    margin-bottom: 0.5%;
}

.education-note {
    font-size: 0.9rem;
    margin-top: 0.5%;
}

.additional-bullets {
    margin-bottom: 0;
    margin-top: 1%;
}


/* Skills Pill Layout */

.skills-container {
    display: flex;
    flex-direction: column;
    gap: 1.5%;
}

.skills-group h3 {
    color: var(--primary-color);
    font-size: 1rem;
    margin-bottom: 0.8%;
}

.pill-box {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5%;
}

.pill-box span {
    background: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 0.25%;
    padding: 0.75% 1.25%;
}


/* Footer Section */

footer {
    border-top: 2px solid var(--border-color);
    color: var(--text-light-color);
    font-size: 0.9rem;
    margin-top: auto;
    padding: 2% 0;
    text-align: center;
}