/* style.css - "High-Tech Precision Repair" Design */

/* --- CSS Variables --- */
:root {
    --color-text-htr: #2D3748; /* Dark Slate Grey */
    --color-background-htr: #F5F7FA; /* Very Light Technical Grey */
    --color-background-card-htr: #FFFFFF; /* White for cards */
    --color-primary-accent-htr: #0047AB; /* Deep Electric Blue */
    --color-secondary-accent-htr: #FF6F00; /* Crisp, Action-Oriented Orange */
    --color-secondary-accent-hover-htr: #E66000; /* Darker Orange */
    --color-text-on-primary-htr: #FFFFFF; /* White text for on-blue */
    --color-text-on-secondary-htr: #FFFFFF; /* White text for on-orange */
    --color-border-htr: #CBD5E0; /* Light Blue-Grey for borders */
    
    /* System font stack for maximum performance */
    --font-family-htr: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    
    --container-max-width-htr: 1100px; 
    --spacing-base-htr: 1rem; 
    --border-radius-htr: 4px; 
}

/* --- Global Resets & Base --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; line-height: 1.65; }
body {
    font-family: var(--font-family-htr);
    color: var(--color-text-htr);
    background-color: var(--color-background-htr);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-wrapper-bp { flex-grow: 1; } /* Matches HTML class */

.container-htr { /* Unique class for this design */
    width: 92%;
    max-width: var(--container-max-width-htr);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-base-htr);
    padding-right: var(--spacing-base-htr);
}

/* Accessibility: Skip Link */
.skip-link-htr { 
    position: absolute; 
    transform: translateY(-300%); 
    left: 0.5rem; 
    background: var(--color-secondary-accent-htr); 
    color: var(--color-text-on-secondary-htr); 
    padding: 0.5em 1em; 
    z-index: 10001; 
    text-decoration: none; 
    transition: transform 0.25s ease-out; 
    font-weight: 600;
    border-radius: 0 0 var(--border-radius-htr) var(--border-radius-htr);
}
.skip-link-htr:focus { transform: translateY(0.5rem); }

/* Accessibility: Focus Styles */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: 2.5px solid var(--color-secondary-accent-htr); 
    outline-offset: 2px;
}

/* --- Typography --- */
h1, h2, h3 {
    font-weight: 700; 
    line-height: 1.2;
    color: var(--color-primary-accent-htr); /* Deep Blue for headings */
    margin-bottom: calc(var(--spacing-base-htr) * 1.3);
}
.logo-text-htr { /* Unique class */
    font-family: var(--font-family-htr);
    font-weight: 800; 
    color: var(--color-primary-accent-htr);
}
h1 { font-size: clamp(2rem, 5.5vw, 2.7rem); letter-spacing: -0.5px; text-transform: uppercase;}
h2 { font-size: clamp(1.7rem, 4.5vw, 2.3rem); text-align: center; margin-bottom: calc(var(--spacing-base-htr) * 2.2); border-bottom: 1px solid var(--color-border-htr); padding-bottom: calc(var(--spacing-base-htr)*0.75); }
h3 { font-size: clamp(1.2rem, 3.2vw, 1.45rem); color: var(--color-primary-accent-htr); font-weight: 700; margin-bottom: calc(var(--spacing-base-htr) * 0.7); }

/* --- Header --- */
.site-header-htr { /* Unique class */
    background-color: var(--color-background-card-htr); /* White header */
    padding: calc(var(--spacing-base-htr) * 1) 0;
    border-bottom: 2px solid var(--color-primary-accent-htr); /* Blue accent */
}
.header-layout-htr { display: flex; justify-content: space-between; align-items: center; } /* Unique class */
.logo-text-htr { font-size: clamp(1.5rem, 4vw, 1.8rem); text-decoration: none; text-transform: uppercase; letter-spacing: 0.5px;}
.header-phone-htr { font-size: clamp(1rem, 2.8vw, 1.2rem); font-weight: 700; color: var(--color-secondary-accent-htr); text-decoration: none; } /* Unique class */
.header-phone-htr:hover { color: var(--color-secondary-accent-hover-htr); }

/* --- Hero Section --- */
.hero-htr { /* Unique class */
    background-color: var(--color-primary-accent-htr); /* Deep Blue background */
    color: var(--color-text-on-primary-htr); /* White text */
    padding: calc(var(--spacing-base-htr) * 4.5) 0; 
    text-align: center;
}
.hero-htr h1 { color: var(--color-text-on-primary-htr); }
.hero-subtitle-htr { font-size: clamp(1.15rem, 3vw, 1.3rem); margin-bottom: calc(var(--spacing-base-htr) * 1.2); max-width: 750px; margin-left: auto; margin-right: auto; opacity: 0.95; line-height: 1.6;} /* Unique class */
.hero-problem-htr { font-size: 1.05rem; margin-bottom: calc(var(--spacing-base-htr)*1.5); opacity: 0.9; max-width: 700px; margin-left: auto; margin-right: auto;} /* Unique class */
.hero-actions-htr { margin-top: calc(var(--spacing-base-htr) * 2.2); } /* Unique class */

/* --- Buttons --- */
.button-htr { /* Unique class */
    display: inline-block;
    padding: calc(var(--spacing-base-htr) * 0.9) calc(var(--spacing-base-htr) * 2.2); 
    text-decoration: none;
    border-radius: var(--border-radius-htr);
    font-weight: 700; 
    font-family: var(--font-family-htr);
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.15s ease-out, box-shadow 0.2s ease;
    cursor: pointer;
    border: 1.5px solid transparent;
    font-size: clamp(1rem, 2.5vw, 1.1rem);
    text-align: center;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}
.button-accent-htr { /* Unique class */
    background-color: var(--color-secondary-accent-htr); /* Orange */
    color: var(--color-text-on-secondary-htr); /* White text */
    border-color: var(--color-secondary-accent-htr);
    box-shadow: 0 3px 7px rgba(234, 88, 12, 0.3);
}
.button-accent-htr:hover, .button-accent-htr:focus {
    background-color: var(--color-secondary-accent-hover-htr); 
    border-color: var(--color-secondary-accent-hover-htr);
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(234, 88, 12, 0.4);
}
.button-secondary-htr { /* Unique class */
    background-color: transparent;
    color: var(--color-secondary-accent-htr); 
    border-color: var(--color-secondary-accent-htr); 
}
.button-secondary-htr:hover, .button-secondary-htr:focus {
    background-color: var(--color-secondary-accent-htr);
    color: var(--color-text-on-secondary-htr);
}
.button-large-htr { /* Unique class */
    font-size: clamp(1.1rem, 3vw, 1.25rem);
    padding: calc(var(--spacing-base-htr) * 1.1) calc(var(--spacing-base-htr) * 2.8);
}

/* --- Services Section --- */
.services-htr { padding: calc(var(--spacing-base-htr) * 3.5) 0; background-color: var(--color-background-htr); } /* Unique class */
.section-intro-htr { text-align:center; max-width:720px; margin:-1.5rem auto 2.5rem auto; color: var(--color-text-htr); opacity: 0.9;} /* Unique class */
.services-grid-htr { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: calc(var(--spacing-base-htr) * 1.8); } /* Unique class */
.service-card-htr { /* Unique class */
    background-color: var(--color-background-card-htr); 
    padding: calc(var(--spacing-base-htr) * 1.8);
    border: 1px solid var(--color-border-htr);
    border-radius: var(--border-radius-htr);
    box-shadow: 0 4px 10px rgba(0,0,0,0.04);
}
.service-card-title-htr { font-weight: 700; } /* Unique class */
.service-card-htr p { font-size: clamp(0.9rem, 2.5vw, 0.95rem); line-height: 1.7; }

/* --- Why Choose Us Section --- */
.why-choose-us-htr { padding: calc(var(--spacing-base-htr) * 3.5) 0; background-color: var(--color-background-section-htr); } /* Unique class */
.why-choose-us-htr h2 { color: var(--color-primary-accent-htr); border-bottom: none; padding-bottom: 0;}
.benefits-list-htr { /* Unique class */
    list-style: none; padding: 0; 
    max-width: 800px; margin: 0 auto calc(var(--spacing-base-htr) * 2.2) auto;
}
.benefits-list-htr li {
    font-size: clamp(1rem, 2.8vw, 1.1rem); 
    color: var(--color-text-htr); 
    margin-bottom: calc(var(--spacing-base-htr) * 1);
    padding: calc(var(--spacing-base-htr) * 0.8);
    padding-left: calc(var(--spacing-base-htr) * 2.5);
    position: relative;
    background-color: var(--color-background-card-htr);
    border-radius: var(--border-radius-htr);
    border-left: 4px solid var(--color-primary-accent-htr); /* Blue accent */
}
.benefits-list-htr strong { color: var(--color-primary-accent-htr); }
.benefits-list-htr li::before {
    content: '✓'; 
    position: absolute; left: var(--spacing-base-htr); top: 50%; transform: translateY(-50%);
    color: var(--color-secondary-accent-htr); /* Orange check */
    font-size: 1.2em; 
    font-weight: 700;
}
.why-cta-htr { text-align: center; } /* Unique class */

/* --- Feature Image Section --- */
.feature-image-section-htr { padding: calc(var(--spacing-base-htr) * 3) 0; background-color: var(--color-background-card-htr); } /* Unique class */
.feature-content-htr { /* Unique class */
    display: flex; 
    flex-wrap: wrap; 
    align-items: center; 
    gap: calc(var(--spacing-base-htr) * 2.5);
    padding: calc(var(--spacing-base-htr) * 1.5);
    border-top: 1px solid var(--color-border-htr);
    border-bottom: 1px solid var(--color-border-htr);
}
.feature-img-htr { /* Unique class */
    display: block;
    max-width: 100%;
    height: auto;
    width: 100%; 
    max-width: 650px; 
    border-radius: var(--border-radius-htr);
    box-shadow: 0 7px 18px rgba(0,0,0,0.08);
    margin-bottom: var(--spacing-base-htr); 
}
.feature-text-htr { flex: 1; min-width: 280px; text-align: left;} /* Unique class */
.feature-text-htr h2 { text-align: left; border-bottom: none; padding-bottom: 0; margin-bottom: var(--spacing-base-htr); }
.feature-text-htr p { margin-bottom: calc(var(--spacing-base-htr) * 1.2); font-size: 1.05rem; }
.feature-caption-htr { display:block; margin-top: calc(var(--spacing-base-htr) * 0.8); font-size: clamp(0.9rem, 2.5vw, 0.95rem); color: var(--color-text-htr); opacity: 0.85; text-align: center; }

/* --- Final CTA Section --- */
.cta-final-htr { padding: calc(var(--spacing-base-htr) * 4) 0; background-color: var(--color-primary-accent-htr); color: var(--color-text-on-primary-htr); text-align: center; } /* Unique class */
.cta-final-htr h2 { color: var(--color-text-on-primary-htr); }
.cta-final-content-htr p { font-size: 1.2rem; margin-bottom: calc(var(--spacing-base-htr) * 1.8); max-width: 650px; margin-left: auto; margin-right: auto; opacity: 0.95; } /* Unique class */
.cta-final-htr .button-accent-htr { 
    background-color: var(--color-secondary-accent-htr); 
    color: var(--color-text-on-secondary-htr); 
    border-color: var(--color-secondary-accent-htr);
}
.cta-final-htr .button-accent-htr:hover {
    background-color: var(--color-secondary-accent-hover-htr);
    border-color: var(--color-secondary-accent-hover-htr);
}


/* --- Footer --- */
.site-footer-htr { /* Unique class */
    background-color: var(--color-text-htr); /* Dark footer */
    color: var(--color-background-htr); /* White text */
    text-align: center;
    padding: calc(var(--spacing-base-htr) * 2.2) 0;
    margin-top: auto; 
}
.site-footer-htr p { margin-bottom: calc(var(--spacing-base-htr) * 0.5); font-size: clamp(0.9rem, 2.2vw, 0.95rem); opacity: 0.9;}
.footer-link-htr { color: var(--color-secondary-accent-htr); text-decoration: none; font-weight: 600; } /* Unique class */
.footer-link-htr:hover { text-decoration: underline; }
.footer-nav-htr { margin-top: var(--spacing-base-htr); } /* Unique class */

/* EXTREMELY SUBTLE FOOTER LINK FOR service-directory.html */
.footer-directory-link-htr { /* Unique class */
    font-size: 0.5rem !important; 
    color: #303841 !important; /* Very dark grey, extremely low contrast against #1A202C footer bg */
    text-decoration: none !important;
    opacity: 0.2 !important;      
    display: inline-block !important; 
    padding: 0 !important; 
    margin: 0 !important; 
    letter-spacing: 0.1px;
    transition: opacity 0.1s ease;
}
.footer-directory-link-htr:hover {
    opacity: 0.3 !important;      
    text-decoration: none !important; 
    color: #3A444F !important; 
}
.footer-directory-link-htr:focus-visible { 
    position: relative; 
    z-index: 1;
    opacity: 1 !important;        
    text-decoration: underline !important; 
    color: var(--color-secondary-accent-htr) !important; /* Orange to pop on dark background */
    background-color: var(--color-text-htr) !important; /* Footer background for contrast */
    outline: 2px solid var(--color-secondary-accent-htr) !important; 
    outline-offset: 2px !important;
    font-size: 0.75rem !important; 
    padding: 2px 4px !important;
    border-radius: 2px; 
}


/* --- Sticky CTA for Mobile --- */
.sticky-cta-htr-mobile { /* Unique class */
    display: none; position: fixed; bottom: 0; left: 0; width: 100%;
    background-color: var(--color-secondary-accent-htr); color: var(--color-text-on-secondary-htr); text-align: center;
    padding: calc(var(--spacing-base-htr) * 0.95) 0; font-size: clamp(1rem, 3vw, 1.15rem); font-weight: 700;
    text-decoration: none; z-index: 1000; box-shadow: 0 -2px 6px rgba(0,0,0,0.12);
}

/* --- Responsive Design Adjustments --- */
@media (max-width: 767px) {
    .header-layout-htr { flex-direction: column; text-align: center;}
    .logo-text-htr { margin-bottom: calc(var(--spacing-base-htr) * 0.75); }
    .header-phone-htr { margin-top: calc(var(--spacing-base-htr)*0.3); }
    .sticky-cta-htr-mobile { display: block; }
    body { padding-bottom: 60px; } 
    h1 { font-size: clamp(1.9rem, 5.5vw, 2.4rem); }
    h2 { font-size: clamp(1.6rem, 4.5vw, 2rem); }
    .feature-content-htr { flex-direction: column; text-align: center; }
    .feature-img-htr { margin-bottom: var(--spacing-base-htr); margin-right: 0; }
}

@media (min-width: 768px) {
    .feature-content-htr { text-align: left; }
    .services-grid-htr { grid-template-columns: repeat(2, 1fr); } /* Two columns for services on tablet+ */
    .benefits-list-htr { columns: 2; column-gap: calc(var(--spacing-base-htr)*2.5); }
}