/* Reset and Base Styles - combined for fewer HTTP requests */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition:
        background-color 0.3s ease,
        color 0.3s ease,
        border-color 0.3s ease;
}

:root {
    /* Store both theme colors */
    --light-primary: #6200ee;
    --light-primary-rgb: 98, 0, 238;
    --light-accent: #ff4081;
    --light-accent-rgb: 255, 64, 129;
    --light-background: #fafafa;
    --light-card: #ffffff;
    --light-text: #212121;
    --light-text-secondary: #757575;
    --light-shadow: rgba(0, 0, 0, 0.1);
    --light-footer-bg: #212121;
    --light-footer-text: #ffffff;
    --light-button-hover: #5100d3;

    --dark-primary: #bb86fc;
    --dark-primary-rgb: 187, 134, 252;
    --dark-accent: #cf6679;
    --dark-accent-rgb: 207, 102, 121;
    --dark-background: #121212;
    --dark-card: #1e1e1e;
    --dark-text: #e1e1e1;
    --dark-text-secondary: #c0c0c0;
    --dark-shadow: rgba(0, 0, 0, 0.3);
    --dark-footer-bg: #1e1e1e;
    --dark-footer-text: #e1e1e1;
    --dark-button-hover: #9965f4;

    /* Common colors */
    --secondary-color: #03dac6;
    --secondary-color-rgb: 3, 218, 198;

    /* Dark theme (default) */
    --primary-color: var(--dark-primary);
    --primary-color-rgb: var(--dark-primary-rgb);
    --accent-color: var(--dark-accent);
    --accent-color-rgb: var(--dark-accent-rgb);
    --background-color: var(--dark-background);
    --card-color: var(--dark-card);
    --text-color: var(--dark-text);
    --text-secondary: var(--dark-text-secondary);
    --shadow-color: var(--dark-shadow);
    --footer-bg: var(--dark-footer-bg);
    --footer-text: var(--dark-footer-text);
    --button-hover: var(--dark-button-hover);
}

[data-theme="light"] {
    /* Light theme */
    --primary-color: var(--light-primary);
    --primary-color-rgb: var(--light-primary-rgb);
    --accent-color: var(--light-accent);
    --accent-color-rgb: var(--light-accent-rgb);
    --background-color: var(--light-background);
    --card-color: var(--light-card);
    --text-color: var(--light-text);
    --text-secondary: var(--light-text-secondary);
    --shadow-color: var(--light-shadow);
    --footer-bg: var(--light-footer-bg);
    --footer-text: var(--light-footer-text);
    --button-hover: var(--light-button-hover);
}

/* System preference - keep user preference when set */
@media (prefers-color-scheme: light) {
    body:not([data-theme="dark"]) {
        --primary-color: var(--light-primary);
        --primary-color-rgb: var(--light-primary-rgb);
        --accent-color: var(--light-accent);
        --accent-color-rgb: var(--light-accent-rgb);
        --background-color: var(--light-background);
        --card-color: var(--light-card);
        --text-color: var(--light-text);
        --text-secondary: var(--light-text-secondary);
        --shadow-color: var(--light-shadow);
        --footer-bg: var(--light-footer-bg);
        --footer-text: var(--light-footer-text);
        --button-hover: var(--light-button-hover);
    }
}

/* Prevent FOUC (Flash of unstyled content) */
html {
    visibility: visible;
    opacity: 1;
}
html.js-loading {
    visibility: hidden;
    opacity: 0;
}

body {
    font-family:
        "Source Sans Pro",
        system-ui,
        -apple-system,
        sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

h1,
h2,
h3 {
    font-family:
        "Nunito",
        system-ui,
        -apple-system,
        sans-serif;
    font-weight: 700;
}

h1 {
    color: var(--primary-color);
    font-size: clamp(1.8rem, 5vw, 2.5rem);
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color 0.3s ease;
}

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

/* Focus styles for accessibility */
:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(var(--accent-color-rgb), 0.3);
}

/* Layout styles */
header {
    padding: 2rem 1rem;
    text-align: center;
    position: relative;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.section {
    margin: 3rem 0;
    opacity: 0;
    transform: translateY(20px);
    transition:
        opacity 0.8s cubic-bezier(0.165, 0.84, 0.44, 1),
        transform 0.8s cubic-bezier(0.165, 0.84, 0.44, 1);
    will-change: opacity, transform;
}

.section-title {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

/* Smooth scrolling for navigation */
html {
    scroll-behavior: smooth;
}

/* High Contrast Mode Support */
@media (forced-colors: active) {
    .button,
    .service-card,
    .profile-image-container,
    .about-card {
        border: 1px solid currentColor;
    }

    svg {
        forced-color-adjust: auto;
    }

    :focus {
        outline: 2px solid CanvasText;
    }
}

/* Print Styles */
@media print {
    .hero-navigation,
    #theme-toggle,
    .back-to-top {
        display: none !important;
    }

    * {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
    }

    a {
        text-decoration: underline;
    }

    .section {
        page-break-inside: avoid;
        opacity: 1;
        transform: translateY(0);
    }

    body {
        font-size: 12pt;
    }

    h1,
    h2,
    h3 {
        page-break-after: avoid;
    }

    img {
        max-width: 100% !important;
    }

    @page {
        margin: 2cm;
    }
}