/* Global Styles & Variables */
:root {
    /* Dark Theme (Default) */
    --navy: #0a192f;
    --light-navy: #112240;
    --lightest-navy: #233554;
    --slate: #8892b0;
    --light-slate: #a8b2d1;
    --white: #e6f1ff;
    --green: #64ffda;
    --green-tint: rgba(100, 255, 218, 0.1);

    /* Variable Mappings */
    --bg-color: var(--navy);
    --bg-secondary: var(--light-navy);
    --bg-tertiary: var(--lightest-navy);
    --heading-color: var(--white);
    --text-color: var(--slate);
    --text-secondary: var(--light-slate);
    --accent-color: var(--green);
    --accent-tint: var(--green-tint);

    --font-main: 'Outfit', sans-serif;
    --font-mono: 'Roboto Mono', monospace;

    --fz-xxs: 12px;
    --fz-xs: 13px;
    --fz-sm: 14px;
    --fz-md: 16px;
    --fz-lg: 18px;
    --fz-xl: 20px;
    --fz-xxl: 22px;
    --fz-heading: 32px;

    --border-radius: 4px;
    --nav-height: 100px;
    --nav-scroll-height: 70px;

    --transition: all 0.25s cubic-bezier(0.645, 0.045, 0.355, 1);
}

[data-theme="light"] {
    --bg-color: #f0f2f5;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e2e6ea;
    --heading-color: #0a192f;
    --text-color: #495670;
    --text-secondary: #233554;
    --accent-color: #007bff;
    /* A distinct blue for light mode */
    --accent-tint: rgba(0, 123, 255, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    font-size: var(--fz-xl);
    line-height: 1.3;
    overflow-x: hidden;
    transition: var(--transition);
}

a {
    display: inline-block;
    text-decoration: none;
    text-decoration-skip-ink: auto;
    color: inherit;
    position: relative;
    transition: var(--transition);
}

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

ul {
    list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0 0 10px 0;
    font-weight: 600;
    color: var(--heading-color);
    line-height: 1.1;
}

p {
    margin: 0 0 15px 0;
}

.section-title {
    display: flex;
    align-items: center;
    position: relative;
    margin: 10px 0 40px;
    width: 100%;
    font-size: clamp(26px, 5vw, 32px);
    white-space: nowrap;
    color: var(--heading-color);
    font-weight: 700;
}

.section-title::after {
    content: "";
    display: block;
    position: relative;
    top: 2px;
    width: 300px;
    height: 1px;
    margin-left: 20px;
    background-color: var(--bg-tertiary);
}

.sec-num {
    margin-right: 10px;
    color: var(--accent-color);
    font-family: var(--font-mono);
    font-size: clamp(16px, 3vw, 20px);
    font-weight: 400;
}

section {
    padding: 100px 0;
    max-width: 1000px;
    margin: 0 auto;
    padding-left: 25px;
    padding-right: 25px;
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    width: 100%;
    height: var(--nav-height);
    background-color: var(--bg-color);
    /* Need opacity handling, but solid is fine for simplicity or use variable with alpha */
    backdrop-filter: blur(10px);
    z-index: 100;
    transition: var(--transition);
    padding: 0 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid transparent;
}

/* Optional: could make background variable include RGB values for rgba usage */

.logo a {
    color: var(--accent-color);
    font-size: 32px;
    font-weight: 700;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    align-items: center;
}

.nav-links li {
    margin: 0 5px;
}

.nav-links a {
    padding: 10px;
    font-family: var(--font-mono);
    font-size: var(--fz-xs);
    color: var(--heading-color);
}

.nav-num {
    color: var(--accent-color);
}

.btn-small {
    color: var(--accent-color) !important;
    background-color: transparent;
    border: 1px solid var(--accent-color);
    border-radius: var(--border-radius);
    padding: 0.75rem 1rem !important;
    margin-left: 15px;
    font-family: var(--font-mono);
    line-height: 1;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-small:hover {
    background-color: var(--accent-tint);
}

#theme-toggle {
    background: transparent;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    margin-left: 20px;
    font-size: 1.2rem;
    padding: 5px;
    transition: var(--transition);
    display: flex;
    align-items: center;
}

#theme-toggle:hover {
    color: var(--accent-color);
    transform: rotate(15deg);
}

/* Hamburger */
.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger div {
    width: 25px;
    height: 3px;
    background-color: var(--accent-color);
    margin: 5px;
    transition: var(--transition);
}

/* Side Elements */
.side-social,
.side-email {
    width: 40px;
    position: fixed;
    bottom: 0;
    left: auto;
    right: 40px;
    z-index: 10;
    color: var(--text-secondary);
}

.side-social {
    left: 40px;
    right: auto;
}

.side-social ul {
    display: flex;
    flex-direction: column;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

.side-social li a {
    padding: 10px;
    font-size: 20px;
    transition: var(--transition);
}

.side-social li a:hover,
.side-email a:hover {
    color: var(--accent-color);
    transform: translateY(-3px);
}

.side-social::after,
.side-email::after {
    content: "";
    display: block;
    width: 1px;
    height: 90px;
    margin: 0 auto;
    background-color: var(--text-secondary);
}

.side-email a {
    writing-mode: vertical-rl;
    margin: 20px auto;
    padding: 10px;
    font-family: var(--font-mono);
    font-size: var(--fz-xs);
    letter-spacing: 0.1em;
}

/* Hero Section */
#hero {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    padding: 0 25px;
}

.hero-intro {
    color: var(--accent-color);
    font-family: var(--font-mono);
    font-size: var(--fz-md);
    font-weight: 400;
    margin: 0 0 30px 4px;
}

.hero-name {
    color: var(--heading-color);
    font-size: clamp(32px, 8vw, 80px);
    /* Reduced min size for small mobiles */
    font-weight: 600;
    margin: 0;
}

.hero-subtitle {
    color: var(--text-color);
    font-size: clamp(32px, 8vw, 80px);
    /* Reduced min size */
    font-weight: 600;
    margin-top: 10px;
    line-height: 0.9;
}

.hero-text {
    margin: 20px 0 0;
    max-width: 540px;
    color: var(--text-color);
    font-size: var(--fz-md);
}

.hero-cta {
    margin-top: 50px;
}

.btn-primary {
    color: var(--accent-color);
    background-color: transparent;
    border: 1px solid var(--accent-color);
    border-radius: var(--border-radius);
    padding: 1.25rem 1.75rem;
    font-size: var(--fz-sm);
    font-family: var(--font-mono);
    line-height: 1;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary:hover {
    background-color: var(--accent-tint);
    border-color: var(--accent-color);
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 50px;
}

.about-text p {
    color: var(--text-color);
    font-size: var(--fz-md);
}

.skills-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(140px, 200px));
    gap: 0 10px;
    padding: 0;
    margin: 20px 0 0 0;
    overflow: hidden;
    list-style: none;
}

.skills-list li {
    position: relative;
    margin-bottom: 10px;
    padding-left: 20px;
    font-family: var(--font-mono);
    font-size: var(--fz-xs);
}

.skills-list li::before {
    content: "▹";
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.about-img {
    position: relative;
    max-width: 300px;
}

.img-wrapper {
    display: block;
    position: relative;
    width: 100%;
    border-radius: var(--border-radius);
    background-color: var(--accent-color);
    transition: var(--transition);
}

.img-wrapper::after {
    content: "";
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius);
    border: 2px solid var(--accent-color);
    top: 20px;
    left: 20px;
    z-index: -1;
    transition: var(--transition);
}

.img-wrapper img {
    position: relative;
    border-radius: var(--border-radius);
    mix-blend-mode: multiply;
    filter: grayscale(100%) contrast(1);
    transition: var(--transition);
    width: 100%;
    height: auto;
}

.img-wrapper:hover {
    background-color: transparent;
}

.img-wrapper:hover img {
    filter: none;
    mix-blend-mode: normal;
}

.img-wrapper:hover::after {
    top: 15px;
    left: 15px;
}

/* Experience Section */
.experience-tabs {
    display: flex;
}

.tab-list {
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 3;
    width: max-content;
    padding: 0;
    margin: 0;
    list-style: none;
    border-left: 2px solid var(--bg-tertiary);
}

.tab-btn {
    text-decoration: none;
    text-decoration-skip-ink: auto;
    position: relative;
    transition: var(--transition);
    display: flex;
    align-items: center;
    width: 100%;
    height: 42px;
    padding: 0 20px 2px;
    border: 0;
    border-left: 2px solid transparent;
    background-color: transparent;
    color: var(--text-color);
    font-family: var(--font-mono);
    font-size: var(--fz-xs);
    text-align: left;
    white-space: nowrap;
    cursor: pointer;
    margin-left: -2px;
}

.tab-btn.active,
.tab-btn:hover {
    background-color: var(--bg-secondary);
    color: var(--accent-color);
}

.tab-btn.active {
    border-left-color: var(--accent-color);
}

.tab-panels {
    position: relative;
    width: 100%;
    margin-left: 20px;
}

.tab-panel {
    display: none;
    width: 100%;
    height: auto;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.5s;
}

@keyframes fadeIn {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

.tab-panel h3 {
    margin-bottom: 2px;
    font-size: var(--fz-xxl);
    font-weight: 500;
    color: var(--heading-color);
}

.company {
    color: var(--accent-color);
}

.duration {
    margin-bottom: 25px;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: var(--fz-xs);
}

.job-desc {
    font-size: var(--fz-md);
}

.job-desc li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 10px;
}

.job-desc li::before {
    content: "▹";
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

/* Projects Section */
.project-item {
    display: grid;
    gap: 10px;
    grid-template-columns: repeat(12, 1fr);
    align-items: center;
    margin-bottom: 100px;
}

.project-content {
    position: relative;
    grid-column: 1 / 7;
    grid-row: 1 / -1;
    text-align: left;
    z-index: 2;
}

.right-aligned .project-content {
    grid-column: 7 / -1;
    text-align: right;
}

.project-overline {
    margin: 10px 0;
    color: var(--accent-color);
    font-family: var(--font-mono);
    font-size: var(--fz-xs);
    font-weight: 400;
}

.project-title {
    color: var(--heading-color);
    font-size: clamp(24px, 5vw, 28px);
}

.project-desc {
    box-shadow: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
    transition: var(--transition);
    position: relative;
    z-index: 2;
    padding: 25px;
    border-radius: var(--border-radius);
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: var(--fz-md);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
    margin: 25px 0 10px;
    padding: 0;
    list-style: none;
}

.right-aligned .project-tech {
    justify-content: flex-end;
}

.project-tech li {
    margin: 0 20px 5px 0;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: var(--fz-xs);
    white-space: nowrap;
}

.right-aligned .project-tech li {
    margin: 0 0 5px 20px;
}

.project-links {
    display: flex;
    align-items: center;
    position: relative;
    margin-top: 10px;
    margin-left: -10px;
    color: var(--heading-color);
}

.right-aligned .project-links {
    justify-content: flex-end;
    margin-left: 0;
    margin-right: -10px;
}

.project-links a {
    padding: 10px;
}

.project-image {
    grid-column: 6 / -1;
    grid-row: 1 / -1;
    position: relative;
    z-index: 1;
    height: 100%;
    border-radius: var(--border-radius);
    background-color: var(--accent-color);
    transition: var(--transition);
    overflow: hidden;
}

.right-aligned .project-image {
    grid-column: 1 / 8;
}

.project-image .img-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    mix-blend-mode: screen;
    opacity: 0.5;
    transition: var(--transition);
}

.placeholder-img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    mix-blend-mode: multiply;
    filter: grayscale(100%) contrast(1) brightness(90%);
    background-color: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: bold;
    color: var(--text-color);
    text-transform: uppercase;
}

.project-image:hover .img-overlay {
    opacity: 0;
}

.project-image:hover .placeholder-img {
    filter: none;
    mix-blend-mode: normal;
}

/* Other Projects Grid */
.other-projects-title {
    text-align: center;
    margin: 80px 0 40px;
    font-size: 24px;
    color: var(--heading-color);
}

.other-projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 15px;
    position: relative;
}

.project-card {
    transition: var(--transition);
    cursor: default;
    padding: 2rem 1.75rem;
    border-radius: var(--border-radius);
    background-color: var(--bg-secondary);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-5px);
}

.card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.card-top .fa-folder {
    color: var(--accent-color);
    font-size: 40px;
}

.card-links a {
    color: var(--text-secondary);
    margin-left: 10px;
}

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

.card-title {
    margin: 0 0 10px;
    color: var(--heading-color);
    font-size: var(--fz-xl);
}

.card-desc {
    color: var(--text-secondary);
    font-size: 17px;
    margin-bottom: 20px;
}

.card-tech {
    display: flex;
    flex-grow: 1;
    align-items: flex-end;
    padding: 0;
    margin: 0;
    list-style: none;
    font-family: var(--font-mono);
    font-size: var(--fz-xxs);
    color: var(--text-secondary);
}

.card-tech li {
    margin-right: 15px;
}

/* Contact Section */
#contact {
    text-align: center;
    max-width: 600px;
    margin-bottom: 100px;
}

.contact-title {
    font-size: clamp(40px, 5vw, 60px);
    margin-bottom: 20px;
    color: var(--heading-color);
}

.contact-desc {
    color: var(--text-color);
    font-size: var(--fz-lg);
    margin-bottom: 50px;
}

.big-btn {
    padding: 1.25rem 2rem;
    font-size: var(--fz-sm);
}

.phone-contact {
    margin-top: 20px;
    color: var(--text-color);
}

.phone-contact a {
    color: var(--accent-color);
}

/* Footer */
footer {
    padding: 20px;
    text-align: center;
    font-family: var(--font-mono);
    font-size: var(--fz-xxs);
    color: var(--text-secondary);
}

.social-mobile {
    display: none;
    margin-bottom: 20px;
}

.social-mobile ul {
    display: flex;
    justify-content: center;
    padding: 0;
    list-style: none;
}

.social-mobile li {
    margin: 0 10px;
}

.social-mobile a {
    font-size: 20px;
}

/* Media Queries */
@media (max-width: 1080px) {
    section {
        padding: 80px 25px;
        /* Ensure padding overlaps */
    }

    .side-social,
    .side-email {
        display: none !important;
    }

    .social-mobile {
        display: block;
    }
}

@media (max-width: 768px) {
    header {
        padding: 0 25px;
        height: 70px;
    }

    .hamburger {
        display: block;
        position: relative;
        /* Essential for z-index to work */
        z-index: 1000;
    }

    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        width: 100vw;
        padding-top: 80px;
        /* Add padding for content spacing */
        background-color: rgba(17, 34, 64, 0.95);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: flex-start;
        /* Align items to top to avoid cutting off on small screens */
        align-items: center;
        transform: translateX(100%);
        visibility: hidden;
        /* Ensure it is hidden when not active */
        transition: transform 0.3s ease-in-out, visibility 0.3s ease-in-out;
        z-index: 99;
    }

    .nav-links.nav-active {
        transform: translateX(0%);
        visibility: visible;
        pointer-events: all;
        box-shadow: -10px 0px 30px -15px rgba(2, 12, 27, 0.7);
    }

    .nav-links li {
        margin: 20px 0;
    }

    /* Hamburger Animation to X */
    .toggle .line1 {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .toggle .line2 {
        opacity: 0;
    }

    .toggle .line3 {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    .about-content {
        display: block;
    }

    .about-img {
        margin: 50px auto 0;
        width: 70%;
    }

    .project-item,
    .project-item.right-aligned {
        display: block;
        margin-bottom: 70px;
    }

    .project-image {
        display: none;
        /* Simplify on mobile for cleaner look or make stacked */
    }

    .project-content,
    .right-aligned .project-content {
        grid-column: 1 / -1;
        text-align: left;
        padding: 25px;
        background-color: var(--bg-secondary);
        border-radius: var(--border-radius);
    }

    .project-title {
        color: var(--heading-color);
    }

    .project-desc {
        background-color: transparent;
        box-shadow: none;
        padding: 20px 0;
    }

    .project-tech,
    .right-aligned .project-tech,
    .project-links,
    .right-aligned .project-links {
        justify-content: flex-start;
    }
}