/* style.css - "Dark Mode Elegance & Precision" Design */

/* --- CSS Variables --- */
:root {
    --color-text-dme: #EAEAEA; /* Light Grey/Off-White for text on dark */
    --color-background-dme: #1A1D24; /* Very Dark Grey / Off-Black */
    --color-background-card-dme: #23272F; /* Slightly lighter dark for cards */
    --color-accent-primary-dme: #C0A062; /* Muted Gold */
    --color-accent-primary-hover-dme: #D4B27A; /* Lighter Gold for hover */
    --color-text-on-accent-dme: #1A1D24; /* Dark text for on-gold CTAs */
    --color-border-dme: #333A45; /* Darker border for dark theme */
    
    /* System font stack for maximum performance */
    --font-family-dme: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    
    --container-max-width-dme: 1080px; 
    --spacing-base-dme: 1rem; /* Approx 16px */
    --border-radius-dme: 3px; 
}

/* --- Global Resets & Base --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; line-height: 1.7; } /* Slightly increased line height for dark bg */
body {
    font-family: var(--font-family-dme);
    color: var(--color-text-dme);
    background-color: var(--color-background-dme);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-content-tsa { flex-grow: 1; } 

.container-tsa { 
    width: 90%;
    max-width: var(--container-max-width-dme);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-base-dme);
    padding-right: var(--spacing-base-dme);
}

/* Accessibility: Skip Link */
.skip-link-tsa { 
    position: absolute; 
    transform: translateY(-250%); 
    left: 0.5rem; 
    background: var(--color-accent-primary-dme); 
    color: var(--color-text-on-accent-dme); 
    padding: 0.6em 1.2em; 
    z-index: 10001; 
    text-decoration: none; 
    transition: transform 0.3s ease-out; 
    font-weight: 600;
    border-radius: 0 0 var(--border-radius-dme) 0;
}
.skip-link-tsa:focus { transform: translateY(0.5rem); }

/* Accessibility: Focus Styles */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: 2px solid var(--color-accent-primary-dme); /* Gold outline */
    outline-offset: 2px;
}

/* --- Typography --- */
h1, h2, h3, .logo-text-tsa { 
    font-family: var(--font-family-dme); 
    font-weight: 600; /* Slightly lighter for headings on dark */
    line-height: 1.3;
    color: var(--color-accent-primary-dme); /* Muted Gold for headings */
    margin-bottom: calc(var(--spacing-base-dme) * 1.2);
}
h1 { font-size: clamp(2rem, 5vw, 2.6rem); letter-spacing: -0.2px; }
h2 { font-size: clamp(1.7rem, 4vw, 2.2rem); text-align: center; margin-bottom: calc(var(--spacing-base-dme) * 2); }
h3 { font-size: clamp(1.2rem, 3vw, 1.4rem); color: var(--color-accent-primary-dme); font-weight: 600; margin-bottom: calc(var(--spacing-base-dme) * 0.7); }

/* --- Header --- */
.site-header-tsa { 
    background-color: var(--color-background-dme); /* Dark background */
    padding: calc(var(--spacing-base-dme) * 0.9) 0;
    border-bottom: 1px solid var(--color-border-dme); /* Subtle border */
}
.header-content-tsa { display: flex; justify-content: space-between; align-items: center; } 
.logo-text-tsa { font-size: clamp(1.4rem, 3.8vw, 1.7rem); color: var(--color-accent-primary-dme); text-decoration: none; font-weight: 700;}
.header-phone-tsa { font-size: clamp(0.95rem, 2.5vw, 1.1rem); font-weight: 600; color: var(--color-text-dme); text-decoration: none; }
.header-phone-tsa:hover { color: var(--color-accent-primary-dme); }

/* --- Hero Section --- */
.hero-tsa { 
    background-color: var(--color-background-card-dme); /* Slightly lighter dark for Hero */
    color: var(--color-text-dme); 
    padding: calc(var(--spacing-base-dme) * 3.5) 0; 
    text-align: center;
    border-bottom: 2px solid var(--color-border-dme);
}
.hero-tsa h1 { color: var(--color-accent-primary-dme); }
.hero-subtitle-tsa { font-size: clamp(1.1rem, 3vw, 1.2rem); margin-bottom: calc(var(--spacing-base-dme) * 2); max-width: 700px; margin-left: auto; margin-right: auto; opacity: 0.9; line-height: 1.6;}
.hero-actions-tsa { margin-top: calc(var(--spacing-base-dme) * 1.8); }

/* --- Buttons --- */
.button-tsa { 
    display: inline-block;
    padding: calc(var(--spacing-base-dme) * 0.8) calc(var(--spacing-base-dme) * 2); 
    text-decoration: none;
    border-radius: var(--border-radius-dme);
    font-weight: 700; /* Bolder for dark theme buttons */
    font-family: var(--font-family-dme);
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.15s ease-out, border-color 0.2s ease;
    cursor: pointer;
    border: 2px solid transparent;
    font-size: clamp(1rem, 2.5vw, 1.05rem);
    text-align: center;
    letter-spacing: 0.5px;
}
.button-primary-tsa, .button-accent-tsa { /* .button-accent-tsa was used in HTML */
    background-color: var(--color-accent-primary-dme); /* Muted Gold button */
    color: var(--color-text-on-accent-dme); /* Dark text on Gold */
    border-color: var(--color-accent-primary-dme);
}
.button-primary-tsa:hover, .button-primary-tsa:focus,
.button-accent-tsa:hover, .button-accent-tsa:focus {
    background-color: var(--color-accent-primary-hover-dme); 
    border-color: var(--color-accent-primary-hover-dme);
    color: var(--color-text-on-accent-dme);
    transform: translateY(-1px);
}
.button-secondary-tsa { 
    background-color: transparent;
    color: var(--color-accent-primary-dme); /* Gold text */
    border-color: var(--color-accent-primary-dme); /* Gold border */
}
.button-secondary-tsa:hover, .button-secondary-tsa:focus {
    background-color: var(--color-accent-primary-dme);
    color: var(--color-text-on-accent-dme); /* Dark text */
}
.button-large-tsa {
    font-size: clamp(1.1rem, 3vw, 1.2rem);
    padding: calc(var(--spacing-base-dme) * 1) calc(var(--spacing-base-dme) * 2.5);
}

/* --- Services Section --- */
.services-tsa { padding: calc(var(--spacing-base-dme) * 3) 0; background-color: var(--color-background-dme); } 
.services-grid-tsa { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: calc(var(--spacing-base-dme) * 1.5); } 
.service-item-tsa { 
    background-color: var(--color-background-card-dme); /* Slightly lighter dark cards */
    color: var(--color-text-dme);
    padding: calc(var(--spacing-base-dme) * 1.5);
    border: 1px solid var(--color-border-dme);
    border-radius: var(--border-radius-dme);
}
.service-item-title-tsa { font-weight: 600; color: var(--color-accent-primary-dme); } 
.service-item-tsa p { font-size: clamp(0.9rem, 2.5vw, 0.95rem); line-height: 1.65; opacity: 0.9; }

/* --- Why Choose Us Section --- */
.why-us-tsa { padding: calc(var(--spacing-base-dme) * 3) 0; background-color: var(--color-background-dme); } 
.why-us-tsa h2 { color: var(--color-accent-primary-dme); }
.benefits-listing-tsa { 
    list-style: none; padding: 0; 
    max-width: 700px; margin: 0 auto calc(var(--spacing-base-dme) * 2) auto;
}
.benefits-listing-tsa li {
    font-size: clamp(1rem, 2.8vw, 1.1rem); 
    color: var(--color-text-dme); 
    margin-bottom: calc(var(--spacing-base-dme) * 0.8);
    padding: calc(var(--spacing-base-dme) * 0.7) 0;
    padding-left: calc(var(--spacing-base-dme) * 2);
    position: relative;
    border-bottom: 1px solid var(--color-border-dme); 
}
.benefits-listing-tsa li:last-child { border-bottom: none; }
.benefits-listing-tsa li::before {
    content: '▹'; /* Different bullet */
    position: absolute; left: 0; top: calc(var(--spacing-base-dme) * 0.7); line-height: 1;
    color: var(--color-accent-primary-dme); font-size: 1.2em; font-weight: 700;
}
.why-cta-tsa { text-align: center; } 

/* --- Final CTA Section --- */
.cta-final-tsa { padding: calc(var(--spacing-base-dme) * 3) 0; background-color: var(--color-accent-primary-dme); color: var(--color-text-on-accent-dme); text-align: center; } 
.cta-final-tsa h2 { color: var(--color-text-on-accent-dme); } /* Dark text on gold */
.cta-final-content-tsa p { font-size: 1.15rem; margin-bottom: calc(var(--spacing-base-dme) * 1.5); max-width: 650px; margin-left: auto; margin-right: auto; opacity: 0.95; } 
.cta-final-tsa .button-accent-tsa { /* Ensure good contrast for CTA button on gold bg */
    background-color: var(--color-background-dme); /* Dark bg for button */
    color: var(--color-text-dme); /* Light text */
    border-color: var(--color-background-dme);
}
.cta-final-tsa .button-accent-tsa:hover {
    background-color: var(--color-background-card-dme);
    border-color: var(--color-background-card-dme);
}


/* --- Footer --- */
.site-footer-tsa { 
    background-color: var(--color-background-card-dme); /* Darker than main bg */
    color: var(--color-text-dme); /* Light text on dark footer */
    text-align: center;
    padding: calc(var(--spacing-base-dme) * 2) 0;
    margin-top: auto; 
    font-size: clamp(0.85rem, 2.2vw, 0.9rem);
    border-top: 1px solid var(--color-border-dme);
}
.site-footer-tsa p { margin-bottom: calc(var(--spacing-base-dme) * 0.4); opacity: 0.8; }
.footer-link-tsa { color: var(--color-accent-primary-dme); text-decoration: none; font-weight: 600; } 
.footer-link-tsa:hover { text-decoration: underline; }
.footer-nav-tsa { margin-top: calc(var(--spacing-base-tsa) * 0.5); } 

/* EXTREMELY SUBTLE FOOTER LINK FOR SERVICE DIRECTORY */
.footer-subtle-link-tsa { 
    font-size: 0.5rem; /* Extremely small */
    color: #2A2E35;     /* Very, very close to footer bg #1A1D24 or #23272F but not identical. Adjust if footer bg changes. */
                        /* This aims for extremely low visual contrast. CHECK ACCESSIBILITY IMPLICATIONS. */
    text-decoration: none;
    opacity: 0.3;      /* Make it very faint */
    display: inline-block;
    padding: 1px 0;
    transition: opacity 0.2s ease, color 0.2s ease;
    letter-spacing: 0.2px;
}
.footer-subtle-link-tsa:hover {
    opacity: 0.4;      /* Minimal change on hover */
    text-decoration: none; 
}
.footer-subtle-link-tsa:focus-visible { /* MUST be clearly visible for accessibility */
    opacity: 1;        
    text-decoration: underline; 
    color: var(--color-accent-primary-dme); /* Gold, to pop on dark background */
    background-color: transparent; 
    outline: 1px dashed var(--color-accent-primary-dme); 
    outline-offset: 1px;
    font-size: 0.7rem; /* Slightly larger on focus */
}


/* --- Sticky CTA for Mobile --- */
.sticky-cta-tsa-mobile { 
    display: none; position: fixed; bottom: 0; left: 0; width: 100%;
    background-color: var(--color-accent-primary-dme); color: var(--color-text-on-accent-dme); text-align: center;
    padding: calc(var(--spacing-base-dme) * 0.9) 0; font-size: clamp(1rem, 3vw, 1.15rem); font-weight: 700;
    text-decoration: none; z-index: 1000; box-shadow: 0 -2px 5px rgba(0,0,0,0.1);
}

/* --- Responsive Design Adjustments --- */
@media (max-width: 767px) {
    .header-content-tsa { flex-direction: column; text-align: center;} 
    .logo-text-tsa { margin-bottom: calc(var(--spacing-base-tsa) * 0.5); }
    .sticky-cta-tsa-mobile { display: block; }
    body { padding-bottom: 55px; } 
    h1 { font-size: clamp(1.7rem, 5vw, 2.2rem); }
    h2 { font-size: clamp(1.5rem, 4vw, 1.9rem); }
}

/* Styles for .container-hm, .feature-icon-hm, .feature-icon-content-hm, .feature-image-hm 
   are removed as the HTML section using them was removed. */