/* style.css - "Sharp & Focused Professionalism" Design for Erith Shutter Pro */

/* --- Google Fonts (Imported in HTML) --- */
/* @import url('https://fonts.googleapis.com/css2?family=Nunito+Sans:wght@400;600;700;800&display=swap'); */
/* HTML already includes: <link href="https://fonts.googleapis.com/css2?family=Lato:wght@400;700;900&family=Open+Sans:wght@400;600&display=swap" rel="stylesheet"> */
/* For this design, we will assume the HTML font link is updated or we rely on a similar sans-serif stack */
/* For this CSS, I will use 'Nunito Sans' as intended. The user should update their HTML font link or use a similar sans-serif. */


/* --- CSS Variables --- */
:root {
    --color-text-sfp: #212529; /* Very Dark Grey */
    --color-background-sfp: #FFFFFF; /* White */
    --color-background-section-sfp: #EFF2F5; /* Very Light Cool Grey */
    --color-primary-accent-sfp: #005A9C; /* Strong Professional Blue */
    --color-secondary-accent-sfp: #17A2B8; /* Sharp Teal */
    --color-border-sfp: #DEE2E6; /* Light Grey for borders */
    
    --font-family-sfp: 'Nunito Sans', 'Helvetica Neue', Arial, sans-serif;
    
    --container-max-width-sfp: 1120px;
    --spacing-unit-sfp: 1rem; /* Approx 16px */
    --border-radius-sfp: 5px; /* Slightly more modern rounding */
}

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

.main-content-vs { flex-grow: 1; } /* Using class from provided HTML */

.container-vs { /* Using class from provided HTML */
    width: 90%;
    max-width: var(--container-max-width-sfp);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-unit-sfp);
    padding-right: var(--spacing-unit-sfp);
}

/* Accessibility: Skip Link */
.skip-to-content-link { position: absolute; transform: translateY(-200%); left: 0.5rem; background: var(--color-secondary-accent-sfp); color: white; padding: 0.6em 1.2em; z-index: 10001; text-decoration: none; transition: transform 0.3s ease-out; border-radius: 0 0 var(--border-radius-sfp) 0; }
.skip-to-content-link:focus { transform: translateY(0.5rem); }

/* Accessibility: Focus Styles */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: 3px solid var(--color-secondary-accent-sfp);
    outline-offset: 2px;
}

/* --- Typography --- */
h1, h2, h3, .logo-text-vs { /* Using class from provided HTML */
    font-family: var(--font-family-sfp);
    font-weight: 800; /* Bolder for Nunito Sans headings */
    line-height: 1.25;
    color: var(--color-primary-accent-sfp); 
}
h1 { font-size: clamp(2.1rem, 5vw, 2.75rem); margin-bottom: calc(var(--spacing-unit-sfp) * 0.8); }
h2 { font-size: clamp(1.7rem, 4vw, 2.2rem); margin-bottom: calc(var(--spacing-unit-sfp) * 1.8); text-align: center; }
h3 { font-size: clamp(1.25rem, 3vw, 1.45rem); margin-bottom: calc(var(--spacing-unit-sfp) * 0.7); color: var(--color-primary-accent-sfp); font-weight: 700; }

/* --- Header --- */
.site-header-vs { /* Using class from provided HTML */
    background-color: var(--color-background-sfp);
    padding: calc(var(--spacing-unit-sfp) * 0.9) 0;
    border-bottom: 1px solid var(--color-border-sfp);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05); /* Softer shadow */
    position: sticky; top: 0; z-index: 1000;
}
.header-content-vs { display: flex; justify-content: space-between; align-items: center; } /* Using class from provided HTML */
.logo-text-vs { font-size: clamp(1.5rem, 4vw, 1.7rem); color: var(--color-primary-accent-sfp); text-decoration: none; font-weight: 800;}
.header-phone-vs { font-size: clamp(1rem, 2.5vw, 1.1rem); font-weight: 600; color: var(--color-secondary-accent-sfp); text-decoration: none; }
.header-phone-vs:hover { text-decoration: underline; }

/* --- Hero Section --- */
.hero-vs { /* Using class from provided HTML */
    background-color: var(--color-primary-accent-sfp); 
    color: var(--color-background-sfp); 
    padding: calc(var(--spacing-unit-sfp) * 3.5) 0; 
    text-align: center;
}
.hero-vs h1 { color: var(--color-background-sfp); }
.hero-subtext-vs { font-size: clamp(1.1rem, 3vw, 1.2rem); margin-bottom: calc(var(--spacing-unit-sfp) * 1.5); max-width: 720px; margin-left: auto; margin-right: auto; opacity: 0.9; font-weight: 400;}
.hero-intro-vs, .hero-promise-vs { font-size: clamp(1rem, 2.8vw, 1.05rem); line-height: 1.7; max-width: 680px; margin: 0 auto calc(var(--spacing-unit-sfp) * 1.2) auto; }
.hero-promise-vs strong { color: var(--color-background-sfp); font-weight: 600; border-bottom: 2px solid var(--color-secondary-accent-sfp); padding-bottom: 2px;}
.hero-actions-vs { margin-top: calc(var(--spacing-unit-sfp) * 2); }

/* --- Buttons --- */
.button-vs { /* Using class from provided HTML */
    display: inline-block;
    padding: calc(var(--spacing-unit-sfp) * 0.8) calc(var(--spacing-unit-sfp) * 1.8); 
    text-decoration: none;
    border-radius: var(--border-radius-sfp);
    font-weight: 700; 
    font-family: var(--font-family-sfp);
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.15s ease-out, box-shadow 0.2s ease;
    cursor: pointer;
    border: 2px solid transparent;
    font-size: clamp(0.95rem, 2.5vw, 1.05rem);
    text-align: center;
    letter-spacing: 0.3px;
}
.button-accent-vs { /* Using class from provided HTML */
    background-color: var(--color-secondary-accent-sfp); 
    color: var(--color-background-sfp); 
    border-color: var(--color-secondary-accent-sfp);
    box-shadow: 0 2px 5px rgba(23, 162, 184, 0.3);
}
.button-accent-vs:hover, .button-accent-vs:focus {
    background-color: #138496; /* Darker Teal */
    border-color: #138496;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(23, 162, 184, 0.4);
}
.button-secondary-vs { /* Using class from provided HTML */
    background-color: transparent;
    color: var(--color-secondary-accent-sfp); 
    border-color: var(--color-secondary-accent-sfp);
}
.button-secondary-vs:hover, .button-secondary-vs:focus {
    background-color: var(--color-secondary-accent-sfp);
    color: var(--color-background-sfp);
}

/* --- Services Section --- */
.services-intro-vs { padding: calc(var(--spacing-unit-sfp) * 3) 0; background-color: var(--color-background-section-sfp); } /* Using class from provided HTML */
.section-subtitle-vs { font-size: 1.1rem; text-align:center; max-width: 700px; margin: calc(var(--spacing-unit-sfp) * -1.5) auto calc(var(--spacing-unit-sfp) * 2) auto; color: var(--color-text-sfp); }
.services-grid-vs { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: calc(var(--spacing-unit-sfp) * 1.5); } /* Using class from provided HTML */
.service-item-vs { /* Using class from provided HTML */
    background-color: var(--color-background-sfp); 
    padding: calc(var(--spacing-unit-sfp) * 1.5);
    border: 1px solid var(--color-border-sfp);
    border-radius: var(--border-radius-sfp);
    box-shadow: 0 3px 7px rgba(0,0,0,0.04);
}
.service-item-vs p { font-size: clamp(0.9rem, 2.5vw, 0.95rem); line-height: 1.6; }

/* --- Why Choose Us Section --- */
.why-choose-vs { padding: calc(var(--spacing-unit-sfp) * 3) 0; background-color: var(--color-background-sfp); } /* Using class from provided HTML */
.benefits-flex-vs { display: flex; flex-wrap: wrap; gap: calc(var(--spacing-unit-sfp) * 1.5); margin-bottom: calc(var(--spacing-unit-sfp) * 2); justify-content: center;} /* Using class from provided HTML */
.benefit-card-vs { /* Using class from provided HTML */
    background-color: var(--color-background-section-sfp);
    padding: var(--spacing-unit-sfp);
    border: 1px solid var(--color-border-sfp);
    border-radius: var(--border-radius-sfp);
    flex-basis: 280px; 
    flex-grow: 1;
    text-align: center;
}
.benefit-heading-vs { font-size: clamp(1.15rem, 2.8vw, 1.3rem); margin-bottom: calc(var(--spacing-unit-sfp)*0.4); color: var(--color-secondary-accent-sfp); font-weight: 700;} /* Teal benefit titles */
.benefit-card-vs p { font-size: clamp(0.85rem, 2.5vw, 0.9rem); }
.why-cta-vs { text-align: center; } /* Using class from provided HTML */

/* --- Feature Visual Section --- */
.feature-image-display-vs { padding: calc(var(--spacing-unit-sfp) * 2.5) 0; background-color: var(--color-background-section-sfp); text-align: center; } /* Using class from provided HTML */
.feature-image-wrapper-vs { display: inline-block; } /* Using class from provided HTML */
.feature-img-vs { /* Using class from provided HTML */
    display: block;
    max-width: 100%;
    height: auto;
    width: 100%; 
    max-width: 600px; 
    border-radius: var(--border-radius-sfp);
    box-shadow: 0 6px 15px rgba(0,0,0,0.08);
    margin-bottom: var(--spacing-unit-sfp);
}
.feature-img-caption-vs { margin-top:var(--spacing-unit-sfp); font-size: clamp(0.9rem, 2.5vw, 0.95rem); color: var(--color-text-sfp); font-style: italic; } /* Using class from provided HTML */

/* --- Footer --- */
.site-footer-vs { /* Using class from provided HTML */
    background-color: var(--color-primary-accent-sfp); /* Professional Blue footer */
    color: var(--color-background-sfp); /* White text */
    text-align: center;
    padding: calc(var(--spacing-unit-sfp) * 2) 0;
    margin-top: auto; 
}
.site-footer-vs p { margin-bottom: calc(var(--spacing-unit-sfp) * 0.5); font-size: clamp(0.85rem, 2.2vw, 0.9rem); opacity: 0.9; }
.footer-link-vs { color: var(--color-secondary-accent-sfp); text-decoration: none; font-weight: 600; } /* Teal link */
.footer-link-vs:hover { text-decoration: underline; }

/* --- Sticky CTA for Mobile --- */
.sticky-cta-vs-mobile { /* Using class from provided HTML */
    display: none; position: fixed; bottom: 0; left: 0; width: 100%;
    background-color: var(--color-secondary-accent-sfp); color: var(--color-background-sfp); text-align: center;
    padding: calc(var(--spacing-unit-sfp) * 0.85) 0; font-size: clamp(1rem, 3vw, 1.1rem); font-weight: 700;
    text-decoration: none; z-index: 1000; box-shadow: 0 -2px 6px rgba(0,0,0,0.12);
    font-family: var(--font-family-sfp); /* Consistent font */
}

/* --- Responsive Design Adjustments --- */
@media (max-width: 767px) {
    .header-content-vs { flex-direction: column; text-align: center;}
    .logo-text-vs { margin-bottom: calc(var(--spacing-unit-sfp) * 0.5); }
    .sticky-cta-vs-mobile { display: block; }
    body { padding-bottom: 55px; } 
    h1 { font-size: clamp(1.9rem, 5vw, 2.3rem); }
    h2 { font-size: clamp(1.6rem, 4vw, 1.9rem); }
}