@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap');

/* Light Mode Color ==================================================== */

:root {
/* ---- Text & background colors ---- */
--color-text: #111111;
--color-text-muted: #525252;
--color-background: #fafafa;
--color-background-soft: #f4f4f4;
--color-border: #e5e5e5;
--color-card-background: #ffffff;

/* ---- Brand colors ---- */
--color-primary: #111111;
--color-primary-hover: #333333;
--color-primary-tint: #dad8d8;
--color-primary-border: #d4d4d4;
--color-primary-ring: #e5e5e5;
--color-primary-line: #d4d4d4;
--color-selection: #d4d4d4;

/* ---- Accent colors ---- */
--color-accent: #505050;
--color-accent-hover: #3e3e3e;

/* ---- Button colors ---- */
--color-button-text: #ffffff;

/* ---- Specific surface colors ---- */
--color-navbar-background: rgba(250, 250, 250, 0.88);

--color-footer-background: #111111;
--color-footer-text: #a3a3a3;

--color-contact-background: #111111;
--color-contact-text: #a3a3a3;

/* ---- Shadows ---- */
--shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.08);
--shadow-navbar: 0 4px 24px rgba(0, 0, 0, 0.06);
--shadow-button: 0 10px 22px rgba(0, 0, 0, 0.14);
--shadow-back-to-top: 0 8px 20px rgba(0, 0, 0, 0.18);
--shadow-mobile-menu: 20px 0 45px rgba(0, 0, 0, 0.12);

/* ---- Border radius scale ---- */
--radius-small: 4px;
--radius-medium: 8px;
--radius-large: 12px;
--radius-xlarge: 16px;
--radius-round: 50%;

/* ---- Section spacing ---- */
--spacing-section: 98px;
--spacing-section-mobile: 76px;

/* ---- Transition speeds ---- */
--transition-fast: 0.2s ease;
--transition-medium: 0.3s ease;
--transition-slow: 0.6s ease;

/* ---- Fonts ---- */
--font-body: 'DM Sans', sans-serif;
--font-heading: 'Space Grotesk', sans-serif;
}




/* Dark Mode Color ================================================================= */

:root[data-theme="dark"] {
--color-text: #f5f5f5;
--color-text-muted: #a3a3a3;

--color-background: #090909;
--color-background-soft: #111111;

--color-border: #262626;
--color-card-background: #111111;

/* Primary becomes white in dark mode */
--color-primary: #f5f5f5;
--color-primary-hover: #ffffff;

--color-primary-tint: #3d3d3d;
--color-primary-border: #333333;
--color-primary-ring: #242424;
--color-primary-line: #2a2a2a;

--color-selection: #333333;

/* Monochrome accent */
--color-accent: #f5f5f5;
--color-accent-hover: #ffffff;

/* Dark mode primary button text */
--color-button-text: #090909;

/* Navbar */
--color-navbar-background: rgba(9, 9, 9, 0.90);

/* Footer */
--color-footer-background: #000000;
--color-footer-text: #8b8b8b;

/* Contact */
--color-contact-background: #000000;
--color-contact-text: #a3a3a3;

/* Shadows */
--shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.55);
--shadow-navbar: 0 4px 24px rgba(0, 0, 0, 0.42);
--shadow-button: 0 10px 22px rgba(0, 0, 0, 0.35);
--shadow-back-to-top: 0 8px 20px rgba(0, 0, 0, 0.45);
--shadow-mobile-menu: 20px 0 45px rgba(0, 0, 0, 0.60);
}




/* RESET & GLOBAL DEFAULTS ===================================================== */

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

  transition:
  background-color var(--transition-medium),
  color var(--transition-medium),
  border-color var(--transition-medium);
  }

html {
scroll-behavior: smooth;
}

body {
font-family: var(--font-body);
font-size: 16px;
line-height: 1.7;
color: var(--color-text);
background: var(--color-background);
overflow-x: hidden;
}

a {
color: inherit;
text-decoration: none;
}

body.menu-open {
overflow: hidden;
}

::selection {
background: var(--color-selection);
}

::-webkit-scrollbar {
width: 8px;
}

::-webkit-scrollbar-thumb {
background: var(--color-primary);
border-radius: 99px;
}

.navbar-container,
.hero-container,
.section-container {
width: min(1100px, 90%);
margin: auto;
}

section {
padding: var(--spacing-section) 0;
}




/* REUSABLE BUTTON STYLES ===================================================== */

.button {
display: inline-flex;
align-items: center;
gap: 9px;
padding: 12px 19px;
border: 1px solid transparent;
border-radius: var(--radius-medium);
font-family: var(--font-body);
font-weight: 700;
font-size: 0.92rem;
cursor: pointer;
transition: var(--transition-fast);
}

.button-primary {
background: var(--color-primary);
border-color: var(--color-primary);
color: var(--color-button-text);
}

.button-primary:hover {
background: var(--color-primary-hover);
border-color: var(--color-primary-hover);
transform: translateY(-2px);
box-shadow: var(--shadow-button);
}

.button-outline {
background: transparent;
border-color: var(--color-primary-border);
color: var(--color-primary);
}

.button-outline:hover {
background: var(--color-primary-tint);
border-color: var(--color-primary-hover);
transform: translateY(-2px);
box-shadow: none;
}

.button-accent {
background: var(--color-accent);
border-color: var(--color-accent);
color: var(--color-button-text);
}

.button-accent:hover {
background: var(--color-accent-hover);
border-color: var(--color-accent-hover);
transform: translateY(-2px);
box-shadow: var(--shadow-button);
}

.button-group {
display: flex;
gap: 12px;
flex-wrap: wrap;
}




/* SECTION TITLES ===================================================== */

.section-title {
position: relative;
display: flex;
flex-direction: column;
align-items: center;
gap: 9px;
margin-bottom: 48px;
text-align: center;
font: 700 clamp(2rem, 4vw, 2.55rem) var(--font-heading);
letter-spacing: -0.06em;
}

.section-title::after {
content: '';
width: 38px;
height: 3px;
border-radius: 9px;
background: var(--color-primary);
}

.section-description {
max-width: 620px;
margin: -33px auto 43px;
color: var(--color-text-muted);
text-align: center;
}




/* NAVIGATION BAR ===================================================== */

.navbar {
position: fixed;
z-index: 10;
width: 100%;
padding: 21px 0;
transition:
padding var(--transition-fast),
background var(--transition-fast),
box-shadow var(--transition-fast);
}

.navbar.navbar-sticky {
padding: 12px 0;
background: var(--color-navbar-background);
box-shadow: var(--shadow-navbar);
backdrop-filter: blur(14px);
}

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

.navbar-logo {
font: 700 1.45rem var(--font-heading);
letter-spacing: -0.07em;
}

.navbar-links {
display: flex;
align-items: center;
gap: 25px;
list-style: none;
}

.navbar-link {
color: var(--color-text-muted);
font-size: 0.91rem;
font-weight: 700;
}

.navbar-link:hover {
color: var(--color-primary);
}

.navbar-close-button {
display: none;
}

.navbar-actions {
display: flex;
align-items: center;
gap: 14px;
}

.navbar-social-links {
display: flex;
gap: 10px;
}

.navbar-social-links a {
display: grid;
place-items: center;
width: 31px;
height: 31px;
border-radius: var(--radius-round);
background: var(--color-background-soft);
font-size: 0.85rem;
transition: var(--transition-fast);
}

.navbar-social-links a:hover {
color: var(--color-button-text);
background: var(--color-primary);
transform: translateY(-2px);
}




/* DARK MODE TOGGLE BUTTON  ===================================================== */

.theme-toggle-button {
display: grid;
place-items: center;
width: 34px;
height: 34px;
border: none;
border-radius: var(--radius-round);
background: var(--color-background-soft);
color: var(--color-text);
font-size: 0.95rem;
cursor: pointer;
transition: var(--transition-fast);
}

.theme-toggle-button:hover {
background: var(--color-primary);
color: var(--color-button-text);
}

/* Show the moon in light mode and the sun in dark mode. */
.theme-toggle-button .theme-icon-moon {
display: inline-block;
}

.theme-toggle-button .theme-icon-sun {
display: none;
}

:root[data-theme="dark"] .theme-toggle-button .theme-icon-moon {
display: none;
}

:root[data-theme="dark"] .theme-toggle-button .theme-icon-sun {
display: inline-block;
}

.navbar-menu-button {
display: none;
}




/* HERO SECTION ===================================================== */

.hero-section {
min-height: 100vh;
display: flex;
align-items: center;

/* Very subtle monochrome gradient */
background: linear-gradient(
135deg,
var(--color-background-soft),
var(--color-background) 55%,
var(--color-background-soft)
);
}

.hero-content {
max-width: 760px;
padding-top: 74px;
}

.hero-label {
color: var(--color-primary);
margin-bottom: 15px;
text-transform: uppercase;
font-size: 0.78rem;
font-weight: 700;
letter-spacing: 0.13em;
}

.hero-title {
max-width: 680px;
font: 700 clamp(3.2rem, 7vw, 6rem)/1 var(--font-heading);
letter-spacing: -0.075em;
}

.hero-name {
color: var(--color-primary);
}

.hero-description {
max-width: 590px;
margin: 22px 0 30px;
color: var(--color-text-muted);
font-size: 1.13rem;
}





/* ABOUT SECTION===================================================== */

.about-content {
display: grid;
grid-template-columns: 0.78fr 1.22fr;
align-items: center;
gap: clamp(42px, 8vw, 100px);
}

.about-image {
display: block;
width: 100%;
max-width: 365px;
aspect-ratio: 1 / 1.1;
object-fit: cover;
border-radius: var(--radius-xlarge);
box-shadow: var(--shadow-soft);
}

.about-heading,
.contact-heading {
font: 700 1.38rem/1.3 var(--font-heading);
letter-spacing: -0.04em;
margin-bottom: 13px;
}

.about-description,
.contact-description {
color: var(--color-text-muted);
}

.about-stats {
display: flex;
gap: 26px;
margin: 27px 0;
}

.stat-item {
display: grid;
gap: 1px;
}

.stat-number {
color: var(--color-primary);
font: 700 1.55rem var(--font-heading);
}

.stat-label {
color: var(--color-text-muted);
font-size: 0.78rem;
}





/* EXPERIENCE SECTION ===================================================== */

.experience-section {
background: var(--color-background-soft);
}

.timeline {
max-width: 800px;
margin: auto;
border-left: 2px solid var(--color-primary-line);
}

.timeline-item {
position: relative;
display: grid;
grid-template-columns: 180px 1fr;
gap: 34px;
padding: 0 0 40px 31px;
}

.timeline-item:last-child {
padding-bottom: 0;
}

.timeline-item::before {
content: '';
position: absolute;
width: 11px;
height: 11px;
left: -6.5px;
top: 7px;
border-radius: var(--radius-round);
background: var(--color-primary);
box-shadow: 0 0 0 5px var(--color-primary-ring);
}

.timeline-date {
color: var(--color-primary);
font-size: 0.82rem;
font-weight: 700;
}

.timeline-card {
padding: 22px 24px;
border: 1px solid var(--color-border);
border-radius: var(--radius-large);
background: var(--color-card-background);
}

.job-title {
margin-bottom: 8px;
font: 700 1.1rem var(--font-heading);
}

.job-company {
color: var(--color-primary);
}

.job-responsibilities {
margin-left: 12px;
color: var(--color-text-muted);
font-size: 15px;
}




/* PROJECTS SECTION ===================================================== */

.projects-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 19px;
}

.project-card {
position: relative;
padding: 27px;
border: 1px solid var(--color-border);
border-radius: var(--radius-xlarge);
background: var(--color-card-background);

transition:
transform var(--transition-medium),
border-color var(--transition-medium),
box-shadow var(--transition-medium);
}

.project-card:hover {
transform: translateY(-6px);
border-color: var(--color-primary-border);
box-shadow: var(--shadow-soft);
}

.project-icon {
display: grid;
place-items: center;
width: 44px;
height: 44px;
margin-bottom: 23px;
border-radius: var(--radius-large);
background: var(--color-primary-tint);
color: var(--color-primary);
}

.project-number {
position: absolute;
top: 30px;
right: 27px;
color: var(--color-text-muted);
font-size: 0.78rem;
font-weight: 700;
}

.project-title {
font: 700 1.18rem var(--font-heading);
letter-spacing: -0.04em;
margin-bottom: 10px;
}

.project-description {
color: var(--color-text-muted);
font-size: 0.91rem;
}

.project-highlights {
margin: 17px 0 19px;
padding-left: 17px;
color: var(--color-text-muted);
font-size: 0.86rem;
}

.project-highlights li + li {
margin-top: 7px;
}

.project-tags {
display: flex;
flex-wrap: wrap;
gap: 6px;
}

.tag {
padding: 3px 8px;
border-radius: var(--radius-small);
color: var(--color-primary);
background: var(--color-primary-tint);
font-size: 0.72rem;
font-weight: 700;

}




/* SKILLS SECTION===================================================== */

.skills-section {
background: var(--color-background-soft);
}

.skills-grid {
display: grid;
grid-template-columns: repeat(2, 1fr);
border-top: 1px solid var(--color-border);
border-left: 1px solid var(--color-border);
}

.skill-category {
padding: 22px 25px;
border-right: 1px solid var(--color-border);
border-bottom: 1px solid var(--color-border);
background: var(--color-card-background);
color: var(--color-text-muted);
font-size: 0.92rem;
}

.skill-category-title {
margin-bottom: 5px;
color: var(--color-text);
font-weight: 700;
}




/* CONTACT SECTION ===================================================== */

.contact-section {
padding: 86px 0;
background: var(--color-contact-background);
color: #ffffff;
}

.contact-section .section-title {
color: #ffffff;
}

.contact-content {
max-width: 620px;
margin: auto;
text-align: center;
}

.contact-heading {
font-size: 1.55rem;
}

.contact-description {
margin-bottom: 25px;
color: var(--color-contact-text);
}




/* FOOTER ===================================================== */

.site-footer {
padding: 17px;
color: var(--color-footer-text);
background: var(--color-footer-background);
text-align: center;
font-size: 0.85rem;
}



/* BACK TO TOP BUTTON ===================================================== */

.back-to-top-button {
position: fixed;
z-index: 9;
right: 23px;
bottom: 23px;
display: none;
place-items: center;
width: 42px;
height: 42px;
border-radius: var(--radius-round);

color: var(--color-button-text);
background: var(--color-primary);

box-shadow: var(--shadow-back-to-top);
}

.back-to-top-button.is-visible {
display: grid;
}



/* REVEAL ON SCROLL ANIMATION===================================================== */

.reveal-on-scroll {
opacity: 0;
transform: translateY(22px);
transition:
opacity var(--transition-slow),
transform var(--transition-slow);
}

.reveal-on-scroll.is-visible {
opacity: 1;
transform: translateY(0);
}




/* RESPONSIVE STYLES===================================================== */

@media (max-width: 760px) {

.navbar-container {
width: 90%;
}

.navbar-links {
position: fixed;
top: 0;
left: -100%;

display: flex;
flex-direction: column;
align-items: flex-start;
gap: 26px;

width: min(82vw, 340px);
height: 100vh;

padding: 88px 32px;

background: var(--color-background);
box-shadow: var(--shadow-mobile-menu);

transition: left var(--transition-medium);
}

.navbar-links.is-open {
left: 0;
}

.navbar-link {
font-size: 1.05rem;
}

.navbar-menu-button,
.navbar-close-button {
display: block;
cursor: pointer;
font-size: 1.3rem;
}

.navbar-close-button {
position: absolute;
top: 24px;
right: 25px;
}

.navbar-social-links {
display: none;
}

.about-content {
grid-template-columns: 1fr;
}

.about-image-wrapper {
text-align: center;
}

.about-image {
margin: auto;
}

.about-stats {
justify-content: space-between;
}

.timeline-item {
grid-template-columns: 1fr;
gap: 9px;
padding-left: 25px;
}

.projects-grid {
grid-template-columns: 1fr;
}

.skills-grid {
grid-template-columns: 1fr;
}

section {
padding: var(--spacing-section-mobile) 0;
}
}




/* EXTRA-SMALL SCREENS ===================================================== */

@media (max-width: 440px) {

.hero-title {
font-size: 3.1rem;
}

.about-stats {
gap: 12px;
}

.stat-number {
font-size: 1.3rem;
}

.stat-label {
font-size: 0.68rem;
}
}



/* ACCESSIBILITY: REDUCED MOTION ===================================================== */

@media (prefers-reduced-motion: reduce) {

* {
  scroll-behavior: auto !important;
  transition-duration: 0.01ms !important;
  }
  }



/* IMAGE GREY TONE ================================= */

.about-image {
    filter: grayscale(70%) contrast(105%);
}