/* Custom Properties (:root) */
:root {

  /* ── Colors ───────────────────────────────── */
  --color-primary:      #07A300; /* main buttons, links, key accents    */
  --color-primary-dark:  #068100; /* hover/active state of primary       */
  --color-accent:       #00A379; /* secondary highlights, badges        */
  --color-text:         #262626; /* body copy and headings              */
  --color-text-muted:   #545353; /* captions, labels, secondary text    */
  --color-bg:           #fafafa; /* main page background                */
  --color-bg-alt:       #f3f3f3; /* alternating section background      */
  --color-border:       #0096E8; /* card borders, dividers, inputs      */

  /* ── Typography ───────────────────────────── */
  --font-heading: 'Brawler', sans-serif;
  --font-body:    'Urbanist', sans-serif;

  --text-xs:  0.9rem; /* small labels, captions   */
  --text-sm:  1rem; /* body text                */
  --text-md:  1.125rem; /* slightly larger body     */
  --text-lg:  1.35rem; /* h3, card titles          */
  --text-xl:  2rem; /* h2, section titles       */
  --text-2xl: 2.75rem; /* h1 on smaller screens    */
  --text-3xl: 3.5rem; /* h1 on desktop            */

  /* ── Spacing ──────────────────────────────── */
  --space-xs:  0.5rem; /* tight gaps, small padding */
  --space-sm:  1rem; /* standard padding           */
  --space-md:  1.5rem; /* comfortable gap            */
  --space-lg:  2.5rem; /* section internal spacing   */
  --space-xl:  4rem; /* section top/bottom padding */
  --space-2xl: 6rem; /* hero, major separators     */

  /* ── Layout ───────────────────────────────── */
  --max-width:  1200px;
  --container-padding:  1.5rem;

  /* ── Borders & Radius ─────────────────────── */
  --radius-sm:  0.25rem;
  --radius-md:  0.5rem;
  --radius-lg:  1rem;
  --radius-pill: 999px; /* fully rounded pill shapes  */

  /* ── Shadows ──────────────────────────────── */
  --shadow-sm: 0.188rem 0.25rem 0.625rem rgba(50, 50, 50, 25%);
  --shadow-md: 0.938rem 0.938rem 0.938rem rgba(50, 50, 50, 25%);

}

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

img, video {
  max-width: 100%;
  display: block;
}

/* Typography */
body, nav a, footer a {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
}

h1 { 
    font-family: var(--font-heading); 
    font-size: var(--text-2xl);
    margin-block: var(--space-2xl);  
}

h2 {
    font-family: var(--font-heading); 
    font-size: var(--text-xl);
    margin-block: var(--space-xl); 
}
h3 { 
    font-family: var(--font-heading); 
    font-size: var(--text-lg); 
    margin-block-end: var(--space-md);
}

a, nav ul, footer ul {
    text-decoration: none;
    list-style: none;
}

.contact a[href^="mailto"]::before {
  content: "📧 ";
}

.contact a[href^="tel"]::before {
  content: "📞 ";
}

/* Layout Utilities (.container) */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin-inline: auto;
    padding-inline: var(--container-padding);
}

.hero, .page-intro h2 {
    margin-block: var(--space-2xl);
}

section {
    padding-block: var(--space-xs);
}

.about-preview {
    margin-block-end: var(--space-2xl);
}

/* 5. Components (.btn, .card, .nav) */
.logo, .hero-banner-desktop, .desktop {
    display: none;
}

header {
    display: flex;
    justify-content: space-between;
    padding: var(--space-md);
    margin-block-end: var(--space-lg);
}

footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-md);
    line-height: 3;
}

.featured-projects h2 {
    text-align: center;
}

.hero-banner-mobile {
    margin-block-end: 14rem;
}

footer img {
    margin-block-end: var(--space-lg);
}

.primary, .secondary {
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    box-shadow: var(--shadow-sm);
}

.primary {
    background-color: var(--color-primary);
    margin-block: var(--space-lg);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.secondary {
    background-color: var(--color-bg);
    margin-block: var(--space-md);
    color: var(--color-text);
    border: 0.125rem solid var(--color-text);
    margin: auto;
}

.primary:hover {
    transform: translateY(-2px);
}

.primary:active, .primary:hover {
    background-color: var(--color-primary-dark);
}

.secondary:hover {
    transform: translateY(-1px);
}

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

.desktop a, footer a, .contact a {
    padding-block: 1.563rem;
}

.desktop a, footer a {
    padding-inline: 0.313rem;
}

.mobile a {
    padding: var(--space-xs);
    
}    

nav a:hover, nav a:active {
    color: var(--color-text-muted);
}

button a {
    color: var(--color-text);
}

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

.contact a:hover, .contact a:active {
    color: var(--color-primary-dark);
}

.card img {
    width: 15.875rem;
    border-top-left-radius: 0.75rem;
    border-top-right-radius: 0.75rem;
    height: 12.938rem;
}

.hero img {
    margin: auto;
}

.card-project img {
    border-top-left-radius: 0.75rem;
    border-top-right-radius: 0.75rem;
}

.card-project, .card {
    border-radius: var(--radius-lg);
    margin-block: var(--space-xl);
    background-color: var(--color-accent);
    box-shadow: var(--shadow-md);
    margin-inline: auto;
}

.card-project {
    width: 20.625rem;
}

.card {
    width: 15.875rem;
}

.card-body {
    padding: 1.5rem;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

.card-body p, .skills p {
    margin-block-end: var(--space-md);
}

.skills li {
    margin-inline-start: var(--space-sm);
}

.about, .education, .skills, .contact {
    margin-block: var(--space-xl);
}

[tabindex]:focus {
  outline: 3px solid rgb(0, 68, 255);
}

/* Media Queries */
@media screen and (min-width: 768px) {
    .card img {
        height: 18.75rem;
        width: 56.25rem;
        border-top-left-radius: 0.5rem;
        border-bottom-left-radius: 0.5rem;
        border-top-right-radius: 0rem;
    }

    .card {
        display: flex;
        width: 37.5rem;
        height: 18.75rem;
        border-top-right-radius: 0.5rem;
        border-bottom-right-radius: 0.5rem;
    }
    
    .card {
         margin-block: var(--space-xl);
    }

    .hero-banner-mobile img, .card-project {
        margin-block: var(--space-2xl);
    }

    .mobile, .logo-mobile {
        display: none;
    }

    .desktop {
        display: block;
        margin-inline-end: var(--space-sm);
    }

    .desktop p {
        margin-block-start: var(--space-md);
    }

    .logo, .card-project, .card-project figure {
        display: flex;
    }

    .card-project {
        width: 45rem;
    }

    .card-project img {
        border-bottom-left-radius: 1rem;
        border-top-right-radius: 0rem;
    }
}

@media screen and (min-width: 1024px) {
    .hero-banner-mobile img {
        display: none;
    }

    .hero-banner-desktop {
        display: block;
    }

    .hero {
        margin-block: var(--space-lg);
    }

    .card img {
        height: 18.75rem;
        width: 62.5rem;
        border-top-left-radius: 0.5rem;
        border-bottom-left-radius: 0.5rem;
        border-top-right-radius: 0rem;
    }

    .card {
        display: flex;
        width: 50rem;
        height: 18.75rem;
        border-top-right-radius: 0.5rem;
        border-bottom-right-radius: 0.5rem;
    }

    h1 {
        font-size: var(--text-3xl);
    }

    .card-project {
        width: 61rem;
    }

    .card-body {
        justify-content: flex-start;
    }
}