/* ===== FONTS ===== */
@import url('https://fonts.googleapis.com/css2?family=SF+Pro+Display:wght@300;400;500;600;700&display=swap');

/* Fallback for SF Pro Display */
@supports not (font-family: 'SF Pro Display') {
    body {
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    }
}

/* ===== CSS RESET ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ===== ROOT VARIABLES ===== */
:root {
    /* Colors */
    --color-primary: #24C780;
    --color-dark: #1a1a1a;
    --color-dark-grey: #2b2b2b;
    --color-grey: #7b7b7b;
    --color-light-grey: #f8f9fa;
    --color-white: #ffffff;
    --color-text: #333333;
    --color-text-light: #666666;
    
    /* Typography */
    --font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Layout */
    --container-max-width: 1200px;
    --border-radius: 12px;
    --border-radius-lg: 20px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== BASE STYLES ===== */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-weight: var(--font-weight-regular);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: 1.2;
    margin-bottom: var(--space-sm);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
    margin-bottom: var(--space-md);
    color: var(--color-text-light);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    opacity: 0.8;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--border-radius);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

.btn--primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn--primary:hover {
    background-color: #1ea66b;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn--outline:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* ===== NAVIGATION ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: var(--transition);
}

.nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-md);
    padding-bottom: var(--space-md);
}

.nav__brand {
    display: flex;
    align-items: center;
}

.nav__logo {
    height: 40px;
    width: auto;
}

.nav__menu {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
    margin: 0;
}

.nav__menu a {
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--space-xs);
    transition: var(--transition);
}

.nav__menu a:hover {
    background-color: var(--color-light-grey);
    color: var(--color-primary);
}

/* ===== HERO SECTION ===== */
.hero {
    padding: calc(80px + var(--space-3xl)) 0 var(--space-lg);
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    text-align: center;
}

.hero__content {
    max-width: 800px;
    margin: 0 auto;
}

.hero__greeting {
    font-size: 1.1rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.hero__title {
    color: var(--color-dark);
    margin-bottom: var(--space-md);
    font-weight: var(--font-weight-bold);
}

.hero__description {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: 0.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== ABOUT SECTION ===== */
.about {
    padding: var(--space-lg) 0 var(--space-lg);
    background-color: var(--color-white);
}

.about__grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-3xl);
    align-items: start;
}

.about__intro h2 {
    color: var(--color-dark);
    margin-bottom: var(--space-lg);
}

.about__intro p {
    margin-bottom: var(--space-md);
}

.about__intro .btn {
    margin-top: var(--space-md);
}

.about__details {
    display: grid;
    gap: var(--space-xl);
}

.about__card {
    padding: var(--space-xl);
    background-color: var(--color-light-grey);
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
}

.about__card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.about__card h3 {
    color: var(--color-dark);
    margin-bottom: var(--space-md);
    font-weight: var(--font-weight-semibold);
}

.about__card p {
    margin: 0;
    line-height: 1.7;
}

/* ===== SKILLS SECTION ===== */
.skills {
    padding: var(--space-lg) 0 var(--space-lg);
    background-color: var(--color-dark-grey);
    color: var(--color-white);
}

.skills__header {
    text-align: center;
    margin-bottom: var(--space-3xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.skills__subtitle {
    font-size: 1rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.skills__header h2 {
    color: var(--color-white);
    margin-bottom: var(--space-lg);
}

.skills__header p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.1rem;
    margin: 0;
}

.skills__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.skill-card {
    background-color: rgba(255, 255, 255, 0.05);
    padding: var(--space-lg);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.skill-card:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
    border-color: var(--color-primary);
}

.skill-card h3 {
    color: var(--color-white);
    margin-bottom: var(--space-md);
    font-weight: var(--font-weight-semibold);
}

.skill-card p {
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
    line-height: 1.7;
}

/* ===== FOOTER ===== */
.footer {
    padding: var(--space-lg) 0 var(--space-lg);
    background-color: var(--color-white);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.footer__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-xl);
}

.footer__brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    align-items: flex-start;
}

.footer__logo {
    height: auto;
    width: auto;
    max-height: 32px;
    max-width: 120px;
    object-fit: contain;
}

.footer__location {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.footer__flag {
    height: 30px;
    width: auto;
    border-radius: 4px;
}

.footer__location p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.footer__links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
}

.footer__group h4 {
    color: var(--color-dark);
    margin-bottom: var(--space-md);
    font-weight: var(--font-weight-semibold);
}

.footer__group ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer__group li {
    margin-bottom: var(--space-xs);
}

.footer__group a {
    color: var(--color-text-light);
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.footer__bottom {
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.footer__bottom p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--color-grey);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .skills__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-lg);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-md);
    }
    
    .nav__menu {
        gap: var(--space-md);
    }
    
    .hero {
        padding: calc(80px + var(--space-xl)) 0 var(--space-md);
    }
    
    .about__grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .skills__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-lg);
    }
    
    .footer__content {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .footer__links {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .footer__location {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }
    
    .footer__flag {
        max-width: 40px;
        height: auto;
    }
}

@media (max-width: 480px) {
    .nav .container {
        padding-top: var(--space-sm);
        padding-bottom: var(--space-sm);
    }
    
    .nav__menu {
        gap: var(--space-sm);
    }
    
    .nav__menu a {
        padding: var(--space-xs);
        font-size: 0.9rem;
    }
    
    .hero {
        padding: calc(70px + var(--space-lg)) 0 var(--space-sm);
    }
    
    .about__card,
    .skill-card {
        padding: var(--space-lg);
    }
    
    .skills__grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
}

/* ===== SCROLL ANIMATIONS ===== */
@media (prefers-reduced-motion: no-preference) {
    .about__card,
    .skill-card {
        opacity: 0;
        transform: translateY(20px);
        animation: fadeInUp 0.6s ease-out forwards;
    }
    
    .about__card:nth-child(2) { animation-delay: 0.1s; }
    .about__card:nth-child(3) { animation-delay: 0.2s; }
    .skill-card:nth-child(2) { animation-delay: 0.1s; }
    .skill-card:nth-child(3) { animation-delay: 0.2s; }
    .skill-card:nth-child(4) { animation-delay: 0.3s; }
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== FORCE LIGHT MODE ===== */
/* Ensure the site always stays light regardless of system preferences */
:root {
    color-scheme: light only;
}

* {
    color-scheme: light only;
}

/* Override any potential dark mode styles */
html {
    background-color: #ffffff !important;
}

body {
    background-color: #ffffff !important;
    color: #333333 !important;
}