:root {
    --color-background: #F2F2F7;
    --color-text-primary: #1d1d1f;
    --color-text-secondary: #636366;
    --color-glass-bg: rgba(255, 255, 255, 0.7);
    --color-glass-border: rgba(0, 0, 0, 0.07);
    --color-card-bg: #FFFFFF;
    --color-button-primary-bg: #1d1d1f;
    --color-button-primary-text: #FFFFFF;
    --color-button-secondary-border: rgba(0, 0, 0, 0.1);
    --color-button-secondary-bg-hover: rgba(0, 0, 0, 0.02);
    --color-highlight-bg: rgba(0, 0, 0, 0.05);
    --color-highlight-border: rgba(0, 0, 0, 0.0);
    --color-focus-ring: rgba(0, 122, 255, 0.5);

    --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --base-font-size: 17px;
    --line-height-base: 1.6;

    --border-radius-small: 9px;
    --border-radius-medium: 18px;
    --border-radius-large: 28px;

    --spacing-unit: 1rem;

    --shadow-soft: 0 10px 35px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 18px 50px rgba(0, 0, 0, 0.12);

    --transition-duration: 0.5s;
    --transition-easing: cubic-bezier(0.2, 0.8, 0.2, 1);
}


*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: var(--base-font-size); -webkit-tap-highlight-color: transparent; }
body {
    font-family: var(--font-family-primary);
    background-color: var(--color-background);
    color: var(--color-text-primary);
    line-height: var(--line-height-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    position: relative;
    user-select: none; -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none;
}
.container { max-width: 1100px; margin: 0 auto; padding: 0 calc(var(--spacing-unit) * 1.5); }
.narrow-container { max-width: 750px; }
a { color: var(--color-text-primary); text-decoration: none; transition: opacity var(--transition-duration) ease; }
a:hover { opacity: 0.75; }
img {
    max-width: 100%; height: auto; display: block;
    pointer-events: none;
}
h1, h2, h3, h4, h5, h6 { margin-bottom: 0.8em; font-weight: 600; line-height: 1.25; color: var(--color-text-primary); }
h1 { font-size: clamp(3rem, 7vw, 4.5rem); font-weight: 700; letter-spacing: -0.035em; }
h2.section-title { font-size: clamp(1.8rem, 5vw, 2.5rem); font-weight: 600; color: var(--color-text-primary); margin-bottom: 2em; }
h3 { font-size: 1.3rem; font-weight: 600; margin-bottom: 0.6em;}
p { margin-bottom: 1.2em; max-width: 60ch; color: var(--color-text-secondary); }
.text-center { text-align: center; margin-left: auto; margin-right: auto; }
.section-intro-text { font-size: 1.1rem; color: var(--color-text-secondary); line-height: 1.7; margin-bottom: 3em; }
.content-section { padding: calc(var(--spacing-unit) * 5) 0; }

.text-highlight.improved {
    display: inline-block;
    background-color: rgba(0, 0, 0, 0.05);
    padding: 0.01em 0.2em;
    border-radius: var(--border-radius-medium);
    margin-bottom: 0.2em;
    box-decoration-break: clone; -webkit-box-decoration-break: clone;
    line-height: 1.5;
    color: var(--color-text-primary);
    box-shadow: 0 3px 8px rgba(0,0,0,0.04);
    border: 1px solid rgba(0,0,0,0.03);
}
.text-highlight.subtle {
    background-color: transparent;
    border: 1px solid rgba(0, 0, 0, 0.08);
    padding: 0.2em 0.5em;
    border-radius: 8px;
    display: inline-block;
    margin-bottom: 0;
    line-height: 1.5;
    color: var(--color-text-primary);
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: rgba(0, 0, 0, 0.05); }
::-webkit-scrollbar-thumb { background-color: rgba(0, 0, 0, 0.2); border-radius: 4px; border: 2px solid transparent; background-clip: content-box;}
::-webkit-scrollbar-thumb:hover { background-color: rgba(0, 0, 0, 0.4); }

.background-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -2; opacity: 0.5; }

.glass-element {
    background-color: var(--color-glass-bg);
    backdrop-filter: saturate(180%) blur(35px);
    -webkit-backdrop-filter: saturate(180%) blur(35px);
    border: 1px solid var(--color-glass-border);
    box-shadow: var(--shadow-soft);
    border-radius: var(--border-radius-medium);
    position: relative;
}

.main-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; transition: background-color 0.3s ease, box-shadow 0.3s ease; }
.sticky-header.glass-nav {
    background-color: var(--color-glass-bg);
    backdrop-filter: saturate(180%) blur(35px);
    -webkit-backdrop-filter: saturate(180%) blur(35px);
    border-bottom: 1px solid var(--color-glass-border);
    box-shadow: none;
}
.main-header.scrolled .sticky-header.glass-nav {
     box-shadow: var(--shadow-soft);
}
.navbar { display: flex; justify-content: space-between; align-items: center; height: 65px; }
.logo { font-size: 1.6rem; font-weight: 1000; color: var(--color-text-primary); letter-spacing: -0.02em; padding-left: 2px;}
.nav-links { list-style: none; display: flex; gap: calc(var(--spacing-unit) * 0.8); }
.nav-link { color: var(--color-text-secondary); font-weight: 500; font-size: 1rem; padding: 9px 15px; border-radius: var(--border-radius-small); transition: color 0.3s ease, background-color 0.3s ease; border: 1px solid transparent;}
.nav-link:hover { color: var(--color-text-primary); background-color: rgba(0, 0, 0, 0.04); }
.navbar.container { padding-left: 0.1px; padding-right: 0.1px;}
.nav-link.active { color: var(--color-text-primary); background-color: rgba(71, 71, 71, 0.06); border-color: rgba(117, 117, 117, 0.15);}

.mobile-menu-button { display: none; background: none; border: none; color: var(--color-text-primary); cursor: pointer; padding: 10px; position: relative; z-index: 1010; width: 44px; height: 44px; }
.hamburger-box { width: 24px; height: 24px; display: inline-block; position: relative; }
.hamburger-inner, .hamburger-inner::before, .hamburger-inner::after { width: 24px; height: 2px; background-color: var(--color-text-primary); border-radius: 2px; position: absolute; transition: transform 0.3s var(--transition-easing), top 0.2s ease-in-out, bottom 0.2s ease-in-out, opacity 0.2s ease; }
.hamburger-inner { top: 50%; transform: translateY(-50%); }
.hamburger-inner::before, .hamburger-inner::after { content: ''; left: 0; }
.hamburger-inner::before { top: -8px; }
.hamburger-inner::after { bottom: -8px; }
.mobile-menu-button[aria-expanded="true"] .hamburger-inner { background-color: transparent; }
.mobile-menu-button[aria-expanded="true"] .hamburger-inner::before { top: 0; transform: rotate(45deg); background-color: var(--color-text-secondary);}
.mobile-menu-button[aria-expanded="true"] .hamburger-inner::after { bottom: 0; transform: rotate(-45deg); background-color: var(--color-text-secondary);}

.mobile-menu {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    padding: 80px var(--spacing-unit) var(--spacing-unit); display: flex; flex-direction: column; align-items: center; justify-content: center;
    z-index: 1005; opacity: 0; visibility: hidden; transform: translateY(-10px) scale(0.98);
    transition: opacity 0.35s var(--transition-easing), visibility 0.35s step-end, transform 0.35s var(--transition-easing); border-radius: 0;
}
.mobile-menu[aria-hidden="false"] { opacity: 1; visibility: visible; transform: translateY(0) scale(1); transition-delay: 0s, 0s, 0s; }
.mobile-menu .nav-links { flex-direction: column; gap: var(--spacing-unit); align-items: center; width: 100%; }
.mobile-menu .nav-link { font-size: 1.8rem; font-weight: 600; padding: 15px 20px; width: 80%; text-align: center; color: var(--color-text-primary); }
.mobile-menu .nav-link:hover { background-color: rgba(0, 0, 0, 0.05); }
.mobile-menu .nav-link.active { background-color: rgba(0, 0, 0, 0.08); }


.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 120px 0 80px 0;
    position: relative;
    overflow: hidden;
}
.hero-content {
    max-width: 750px;
}
.hero-title { color: var(--color-text-primary); line-height: 1.2; margin-bottom: 0.6em;}
.hero-subtitle { font-size: 1.2rem; color: var(--color-text-secondary); font-weight: 400; margin: 0 auto 2.5em auto; max-width: 55ch; }

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-text-secondary);
    animation: bounce 2.5s infinite ease-in-out;
    z-index: 2; opacity: 0; transition: opacity 0.5s ease;
}

.scroll-indicator svg { width: 30px; height: 30px; }
@keyframes bounce { 0%, 20%, 50%, 80%, 100% { transform: translate(-50%, 0); } 40% { transform: translate(-50%, -10px); } 60% { transform: translate(-50%, -5px); } }

.vision-button { display: inline-flex; align-items: center; justify-content: center; gap: 0.6em; padding: 14px 30px; border: 1px solid transparent; border-radius: var(--border-radius-large); font-size: 1.05rem; font-weight: 500; cursor: pointer; transition: transform 0.2s ease, background-color var(--transition-duration) ease, box-shadow var(--transition-duration) ease, border-color var(--transition-duration) ease; text-align: center; white-space: nowrap; }
.vision-button.primary { background-image: linear-gradient(to bottom, var(--color-button-primary-bg) 0%, #2c2c2e 100%); color: var(--color-button-primary-text); border-color: transparent; box-shadow: 0 4px 10px rgba(0,0,0,0.1); }
.vision-button.primary:hover { background-image: linear-gradient(to bottom, #2c2c2e 0%, #3a3a3c 100%); box-shadow: 0 6px 15px rgba(0,0,0,0.15); transform: translateY(-2px); }
.vision-button.secondary { background-color: rgba(0, 0, 0, 0.04); color: var(--color-text-primary); border-color: var(--color-button-secondary-border); }
.vision-button.secondary:hover { background-color: var(--color-button-secondary-bg-hover); border-color: rgba(0, 0, 0, 0.15); transform: translateY(-2px); }
.vision-button:active { transform: scale(0.97) translateY(0); }
.vision-button.icon-button svg { margin-right: -0.1em; width: 20px; height: 20px; }


.features-section { padding-bottom: calc(var(--spacing-unit) * 6); }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: calc(var(--spacing-unit) * 2); margin-top: 3em; }
.feature-card { padding: calc(var(--spacing-unit) * 2); text-align: center; transition: transform var(--transition-duration) var(--transition-easing), box-shadow var(--transition-duration) var(--transition-easing); }
.feature-card:hover { transform: scale(1.03); box-shadow: var(--shadow-medium); }
.feature-icon { margin-bottom: 1.5em; color: var(--color-text-primary); display: inline-block; width: 38px; height: 38px;}
.feature-icon svg { display: block; width: 100%; height: 100%; }
.feature-title { font-size: 1.2rem; margin-bottom: 0.8em; color: var(--color-text-primary); }
.feature-description { color: var(--color-text-secondary); font-size: 0.95rem; line-height: 1.6; margin-bottom: 0; }


.services-section {
    background-color: transparent;
    padding-top: calc(var(--spacing-unit) * 4);
    padding-bottom: calc(var(--spacing-unit) * 6);
}
.services-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: calc(var(--spacing-unit) * 1.8); margin-top: 3em;
}
.service-card {
    padding: calc(var(--spacing-unit) * 1.8);
    transition: transform var(--transition-duration) var(--transition-easing), box-shadow var(--transition-duration) var(--transition-easing);
    display: flex;
    flex-direction: column;
    text-align: center;
	    align-items: center;
}

.service-card .feature-icon {
    margin-bottom: 1.5em;
    color: var(--color-text-primary);
    display: inline-block;
    width: 38px;
    height: 38px;
}
.service-card .feature-icon svg { display: block; width: 100%; height: 100%; }
.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}
.service-title {
    font-size: 1.3rem;
    margin-bottom: 0.6em;
    color: var(--color-text-primary);
}
.service-description {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 0;
    flex-grow: 1;
}


.contact-footer-section {
    padding-top: calc(var(--spacing-unit) * 5);
    padding-bottom: 0;
}
.contact-content {
    padding-bottom: calc(var(--spacing-unit) * 4);
}
.contact-buttons-wrapper { margin-top: 3em; display: flex; justify-content: center; gap: var(--spacing-unit); flex-wrap: wrap; }

.main-footer {
    padding: calc(var(--spacing-unit) * 3) 0;
    background-color: transparent;
    border-top: none;
    margin-top: 0;
}
.footer-content { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1em; }
.footer-logo { font-size: 1.1rem; font-weight: 600; color: var(--color-text-secondary); }
.footer-copy { font-size: 0.9rem; color: var(--color-text-secondary); }

.animate-on-load,
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px) scale(0.99);
    transition: opacity 0.7s var(--transition-easing), transform 0.7s var(--transition-easing);
}
.is-visible { opacity: 1; transform: translateY(0) scale(1); }

@media (max-width: 992px) {
     .services-grid { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
}
@media (max-width: 768px) {
     :root { --base-font-size: 16px; }
	     .navbar {
        justify-content: center;
    }

     h1 { font-size: clamp(2.5rem, 10vw, 3.5rem); }
     h2.section-title { font-size: clamp(1.6rem, 5vw, 2rem); }
     .content-section { padding: calc(var(--spacing-unit) * 4) 0; }
     .desktop-nav { display: none; align-items: center; justify-content: center; }
     .mobile-menu-button { display: block; }
     .features-grid, .services-grid { grid-template-columns: 1fr; }
     .hero-section { padding: 100px 0 60px 0; min-height: 85vh; }
}
@media (max-width: 480px) {
     :root { --base-font-size: 15px; }
     .container { padding: 0 var(--spacing-unit); }
     h1 { font-size: clamp(2rem, 12vw, 2.8rem); }
     .vision-button { padding: 12px 24px; font-size: 0.95rem;}
     .feature-card, .service-card { border-radius: var(--border-radius-medium); padding: calc(var(--spacing-unit) * 1.5); }
     .footer-content { flex-direction: column; gap: 0.8em; text-align: center;}
     .contact-buttons-wrapper { flex-direction: column; align-items: center; }
     .vision-button.icon-button { width: 90%; max-width: 300px; }
     .main-footer { padding: calc(var(--spacing-unit) * 2) 0; }
     .hero-section { padding: 90px 0 50px 0; }
}

body.no-scroll { overflow: hidden; }


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