/*
 * ===============================================
 * CSS Custom Properties (Variables)
 * ===============================================
 */

:root {
    /* Color Palette (Light Theme is the default) */
    --page-bg-color: #eef0f2;
    --content-bg-color: #ffffff;
    --text-color: #444444;
    --heading-color: #004799;
    --header-bg: #004799;
    --header-text: #ffffff;
    --card-bg: #ffffff;
    --card-border: #dcdcdc;
    --footer-bg: #333333;
    --footer-text: #e0e0e_0;
    --footer-copyright-text: #a0a0a0;
    --hr-line-color: #b0b0b0;
    --toggle-bg: #ffffff;
    --toggle-hover-bg: #f1f5f9;
    --toggle-icon-color: #333333;

    /* Shadows */
    --box-shadow: 0 0.25rem 0.75rem rgba(0, 0, 0, 0.08);
    --card-shadow: 0 2px 5px rgba(0,0,0,0.05);
    --card-hover-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);

    /* Typography */
    --font-family-heading: 'Roboto Flex', sans-serif;
    --font-family-body: 'Roboto Flex', sans-serif;

    /* Spacing System */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1.5rem;
    --spacing-md: 2.5rem;
    --spacing-lg: 4rem;
    --spacing-xl: 5rem;
    
    /* Component-Specific Sizing */
    --border-radius: 0.3rem;
    --card-internal-padding: 3rem;
    --header-height-desktop: 4.5rem;
}

/* Dark Theme Overrides */
[data-theme="dark"] {
    --page-bg-color: #1a1a1a;
    --content-bg-color: #2c2c2c;
    --text-color: #e0e0e0;
    --heading-color: #7ab3ed;
    --header-bg: #223444;
    --header-text: #ffffff;
    --card-bg: #383838;
    --card-border: #555555;
    --footer-bg: var(--header-bg);
    --footer-text: #cccccc;
    --footer-copyright-text: #a0a0a0;
    --hr-line-color: #555555;
    --toggle-bg: #333333;
    --toggle-hover-bg: #555555;
    --toggle-icon-color: #ffffff;
    --box-shadow: 0 0.25rem 0.75rem rgba(0, 0, 0, 0.3);
    --card-shadow: 0 2px 5px rgba(0,0,0,0.2);
    --card-hover-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

/*
 * ===============================================
 * Base & Reset Styles
 * ===============================================
 */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    background-color: var(--page-bg-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

body {
    font-family: var(--font-family-body);
    font-weight: 300;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/*
 * ===============================================
 * Typography
 * ===============================================
 */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    color: var(--heading-color);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
    font-weight: 700;
}

h1 { font-size: clamp(1.8rem, 4vw, 3rem); margin-bottom: var(--spacing-md); }
h5 { font-size: clamp(1.0rem, 2vw, 1.3rem); }

p {
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
}

p:last-child {
    margin-bottom: 0;
}

/*
 * ===============================================
 * Header & Navigation (Mobile First)
 * ===============================================
 */

.site-header {
    background-color: var(--header-bg);
    color: var(--header-text);
    transition: background-color 0.3s ease, color 0.3s ease;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.site-header .header-content-wrapper {
    max-width: 1200px;
    min-height: var(--header-height-desktop); /* Use min-height for flexibility */
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-md); /* Tighter vertical padding */
}

.site-header .branding {
    display: flex;
    align-items: center;
    color: var(--header-text);
    text-decoration: none;
    flex-shrink: 0; /* Prevents logo from shrinking */
    z-index: 2;
}

.site-header .branding svg {
    display: block;
    height: 2.2rem;
    width: auto;
}

/* THIS IS THE CORRECTED SLOGAN STYLING */
.header-slogan {
    flex-grow: 1; /* Allow it to take up the available middle space */
    text-align: center;
    font-size: 0.9rem;
    font-weight: 700;
    line-height: 1.2; /* Tightens the two lines */
    margin: 0;
    white-space: normal; /* Allows the text to wrap */
    max-width: 15rem; /* Forces the text to wrap into a nice block */
}

.header-slogan::before,
.header-slogan::after {
    display: none;
}

.theme-toggle {
    background-color: var(--toggle-bg);
    color: var(--toggle-icon-color);
    border: none;
    padding: 0.5rem;
    border-radius: 9999px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0; /* Prevents the toggle from shrinking */
}

.theme-toggle:hover {
    background-color: var(--toggle-hover-bg);
}

.theme-toggle svg {
    width: 24px;
    height: 24px;
    stroke-width: 2;
    transform-origin: center;
    transition: transform 0.3s ease;
    display: block;
}

.theme-toggle:active svg {
    transform: rotate(30deg);
}

.sun-icon { display: block; }
[data-theme="dark"] .sun-icon { display: none; }
.moon-icon { display: none; }
[data-theme="dark"] .moon-icon { display: block; }


/*
 * ===============================================
 * Main Content & Sections
 * ===============================================
 */

.main-content {
    display: grid;
    row-gap: var(--spacing-xl);
    max-width: 1200px;
    margin: var(--spacing-lg) auto;
    padding: var(--spacing-xl) var(--spacing-lg);
    background-color: var(--content-bg-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    flex-grow: 1;
    overflow: hidden;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-content p {
    font-size: 1.1rem;
    line-height: 1.5;
}

.hero-divider {
    margin: var(--spacing-lg) 0;
    border: none;
    height: 1px;
    background-color: var(--hr-line-color);
}

.about-us-section {
    display: grid;
    justify-items: center;
}

.about-card {
    width: min(720px, 92%);
    position: relative;
    border-radius: var(--border-radius);
    display: flex;
    justify-content: center;
    overflow: hidden;
}

.about-card::before {
    content: "";
    position: absolute;
    z-index: -1;
    left: 50%;
    top: 50%;
    width: 150%;
    height: 150%;
    background: conic-gradient( from 0deg, transparent 0%, transparent 75%, var(--heading-color) 95%, transparent 100% );
    animation: rotate 4s linear infinite;
    transform-origin: center center;
}

@keyframes rotate {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.about-content {
    width: 100%;
    background-color: var(--card-bg);
    padding: var(--card-internal-padding);
    border-radius: var(--border-radius);
    border: 1px solid var(--card-border);
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin: 2px;
    text-align: center;
}

.about-card:hover .about-content {
    transform: translateY(-3px);
    box-shadow: var(--card-hover-shadow);
}

.contact-section {
    text-align: center;
}

.contact-details {
    display: inline-flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    text-align: left;
}

.contact-item {
    display: inline-flex;
    align-items: center;
    gap: 0.75em;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    background-color: rgba(0,0,0,0.02);
    border: 1px solid rgba(0,0,0,0.05);
    color: var(--text-color);
    font-size: 1.1rem;
    font-weight: 400;
    text-decoration: none;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

[data-theme="dark"] .contact-item {
    background-color: rgba(255,255,255,0.05);
    border-color: rgba(255,255,255,0.1);
}

.contact-item:hover {
    transform: translateY(-2px);
    background-color: rgba(0,0,0,0.05);
}

[data-theme="dark"] .contact-item:hover {
    background-color: rgba(255,255,255,0.1);
}

.contact-item svg {
    color: var(--heading-color);
    flex-shrink: 0;
}

/*
 * ===============================================
 * Footer
 * ===============================================
 */

.site-footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    padding: var(--spacing-md) 0;
    margin-top: var(--spacing-lg);
    transition: background-color 0.3s ease, color 0.3s ease;
    flex-shrink: 0;
}

.site-footer .footer-content-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0 var(--spacing-md);
    text-align: center;
}

.site-footer .footer-item {
    font-size: 0.9rem;
    font-weight: 300;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5em;
    color: var(--footer-text);
    text-decoration: none;
    transition: color 0.3s ease;
}

.site-footer a.footer-item:hover {
    color: var(--header-text);
}

.site-footer .footer-copyright {
    color: var(--footer-copyright-text);
    margin-top: var(--spacing-sm);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.6s ease-out forwards;
    opacity: 0;
}

.hero-section { animation-delay: 0.1s; }
.about-us-section { animation-delay: 0.2s; }
.contact-section { animation-delay: 0.3s; }

/*
 * ===============================================
 * Desktop Layout Adjustments
 * ===============================================
 */

@media (min-width: 768px) {
    .site-header .header-content-wrapper {
        height: var(--header-height-desktop);
    }

    .site-header .branding svg {
        height: 2.5rem;
    }

    .header-slogan {
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
        font-size: clamp(1.1rem, 2.5vw, 1.4rem);
        white-space: nowrap;
        max-width: none;
    }

    .header-slogan::before,
    .header-slogan::after {
        display: inline;
    }

    .site-footer .footer-content-wrapper {
        flex-direction: row;
        justify-content: center;
        align-items: center;
        gap: var(--spacing-lg);
    }

    .site-footer .footer-copyright {
        margin-top: 0;
    }
}