/* ==========================================================================
   Design tokens
   ========================================================================== */
:root {
    --color-bg: #FAFAF9;
    --color-surface: #F1F0EE;
    --color-border: #DEDDDA;
    --color-text: #16181A;
    --color-text-muted: #5C6166;
    --color-text-faint: #8A8F94;
    --color-accent: #45607A;
    --color-accent-strong: #2E4258;

    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Helvetica, Arial, sans-serif;
    --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

    --space-1: 4px;
    --space-2: 8px;
    --space-3: 16px;
    --space-4: 24px;
    --space-5: 32px;
    --space-6: 48px;
    --space-7: 64px;

    --radius-sm: 3px;
    --radius-md: 6px;

    --content-max-width: 1080px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #0D0F11;
        --color-surface: #16181B;
        --color-border: #2A2D31;
        --color-text: #E7E8E9;
        --color-text-muted: #9BA0A6;
        --color-text-faint: #6B7076;
        --color-accent: #7C9BB5;
        --color-accent-strong: #9DB8CC;
    }
}

/* ==========================================================================
   Reset / base
   ========================================================================== */
* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
    margin: 0;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-sans);
    margin: 0;
    opacity: 0;
    transition: opacity 0.3s ease;
    -webkit-font-smoothing: antialiased;
}

body.fade-in {
    opacity: 1;
}

h1, h2, h3, p, a, li, label {
    color: var(--color-text);
    margin: 0;
}

h1, h2, h3 {
    font-weight: 600;
    letter-spacing: -0.01em;
}

p {
    font-size: 18px;
    line-height: 1.65;
    color: var(--color-text-muted);
    max-width: 68ch;
}

hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: var(--space-5) 0;
}

mark {
    background: none;
    color: var(--color-accent-strong);
    font-weight: 600;
}

a {
    color: var(--color-accent-strong);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.15s ease, color 0.15s ease;
}

a:hover {
    border-bottom-color: currentColor;
}

main {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: var(--space-6) var(--space-5);
        flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* ==========================================================================
   Header / nav
   ========================================================================== */
.site-header {
    max-width: 1100px;
    margin: 2rem auto 4rem;

    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
}

.header-name-title {
    margin: 0;
    font-size: 3.75rem;
    letter-spacing: -0.03em;
    font-weight: 400;
}

.header-name-title a {
    color: inherit;
    text-decoration: none;
    border: none;
}

.navbar {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.navbar a {
    color: var(--color-text-muted);
    text-decoration: none;
    border: none;
    font-size: 1rem;
    transition: color .15s ease;
}

.navbar a:hover,
.navbar a.active {
    color: var(--color-text);
}

/* ==========================================================================
   Hero / intro
   ========================================================================== */
.hi-welcome-div {
    display: flex;
    align-items: baseline;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.main-title-welcome {
    font-size: 44px;
    margin: 0;
    font-weight: 700;
}

.wave {
    display: inline-block;
    font-size: 2rem;
    transform-origin: 70% 70%;
}

.main-introduction {
    font-size: 24px;
    font-weight: 400;
    line-height: 1.55;
    color: var(--color-text-muted);
    max-width: 68ch;
    margin-bottom: var(--space-6);
}

.main-introduction mark {
    font-weight: 500;
}

.about-summary {
    margin-bottom: var(--space-6);
}

.about-summary p {
    margin-bottom: var(--space-4);
}

.quick-links {
    list-style: none;
    display: flex;
    gap: var(--space-4);
    padding: 0;
    font-family: var(--font-mono);
    font-size: 14px;
}

.quick-links li::before {
    content: "";
}

.quick-links a {
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
}

.quick-links a:hover {
    color: var(--color-accent-strong);
    border-bottom-color: var(--color-accent-strong);
}

/* ==========================================================================
   Section headings
   ========================================================================== */
.category-title {
    font-size: 26px;
    font-weight: 600;
    text-transform: none;
    margin-bottom: var(--space-4);
}

.section-subtitle {
    font-family: var(--font-mono);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-faint);
    font-weight: 600;
    margin-bottom: var(--space-3);
}

h2 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: var(--space-3);
}


/* ==========================================================
   Projects
   ========================================================== */

.projects-intro p {
    max-width: 64ch;
}

.projects-intro {
    max-width: 700px;
}

.projects-row {
    margin-top:4rem;
    width: min(1500px, 95vw);

    margin-left: calc(50% - min(1500px, 95vw) / 2);

    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
    gap: 2rem;
}

.project-card {
    display: flex;
    flex-direction: column;

    height: 100%;

    padding: var(--space-4);

    background: transparent;

    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);

    transition:
        border-color .15s ease,
        transform .15s ease,
        background .15s ease;
}

.project-card:hover {
    border-color: var(--color-accent);
    background: var(--color-surface);
    transform: translateY(-2px);
}

.project-card h3 {
    margin: 0 0 .45rem;
    font-size: 1.15rem;
    font-weight: 600;
}

.project-card p {
    margin: 0;
    max-width: none;
}

.project-card p:first-of-type {
    margin-bottom: .9rem;

    font-family: var(--font-mono);
    font-size: .8rem;

    color: var(--color-text-faint);
}

.project-card p:last-of-type {
    color: var(--color-text-muted);
    line-height: 1.6;
}

.project-card img,
.project-card video {
    width: 100%;
    aspect-ratio: 16 / 9;

    object-fit: cover;

    margin-top: auto;
    margin-top: var(--space-4);

    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);

    display: block;
}

.project-card video {
    background: black;
}

.project-badges {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-3);
}

.project-badges img {
    width: auto;
    height: 20px;

    aspect-ratio: auto;

    border: none;
    border-radius: 0;
    margin: 0;
}

.heart {
    display: inline-block;
}

@media (max-width: 1000px) {

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

}

@media (max-width: 640px) {

    .project-card {
        padding: var(--space-3);
    }

}


/* ==========================================================================
   Meta widgets: clock + heatmap
   ========================================================================== */

.clock-section {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--color-text-faint);
}

.clock-section .time {
    font-size: 14px;
    font-weight: 400;
    display: flex;
    gap: var(--space-2);
}

.clock-section #clock {
    color: var(--color-accent-strong);
    font-weight: 600;
}

/* ==========================================================================
   Footer (untouched intentionally — placeholder for future pass)
   ========================================================================== */
footer {
    padding: var(--space-5);
    display: flex;
    align-items: center;
    gap: var(--space-6);
    border-top: 1px solid var(--color-border);
}

footer > p {
    font-size: 14px;
    color: var(--color-text-faint);
    max-width: none;
}

.socials-container {
    display: flex;
    gap: var(--space-5);
    align-items: center;
}

.socials-container > h2 {
    font-size: 18px;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 640px) {
    main {
        padding: var(--space-5) var(--space-4);
    }

    .header-name-title {
        font-size: 30px;
    }

    .hi-welcome-div {
        flex-direction: row;
        align-items: center;
    }

    .main-title-welcome {
        font-size: 26px;
    }

    .main-introduction {
        font-size: 17px;
    }

    .quick-links {
        flex-wrap: wrap;
        gap: var(--space-3);
    }

    footer {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-4);
    }

    .productivity {
        display: none;
    }
}

/* anims */

@keyframes wave {
  0% { transform: rotate(0deg); }
  15% { transform: rotate(15deg); }
  30% { transform: rotate(-10deg); }
  45% { transform: rotate(15deg); }
  60% { transform: rotate(-10deg); }
  75% { transform: rotate(15deg); }
  100% { transform: rotate(0deg); }
}

.wave {
  display: inline-block;
  margin-left: -12px;
  font-size: 2.5rem;
  transform-origin: 70% 70%;
  animation: wave 1s infinite;
}