/* ----------------------------------------------------------
   Core Design System
---------------------------------------------------------- */

:root {
    /* Typography */
    --font-base: 16px;
    --font-scale-1: 1.125rem;
    --font-scale-2: 1.375rem;
    --font-scale-3: 1.75rem;
    --font-scale-4: 2.25rem;
    --font-scale-hero: 3rem;

    /* Colours */
    --color-primary: #1e3a5f;
    --color-primary-light: #264a78;
    --color-accent: #2e7d32;
    --color-accent-light: #3f9a45;
    --color-dark: #222;
    --color-light: #f8f9fa;
    --color-white: #fff;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 10px;

    /* Shadows */
    --shadow-sm: 0 2px 6px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.12);
}

/* ----------------------------------------------------------
   Base
---------------------------------------------------------- */

body {
    font-family: "Segoe UI", Arial, sans-serif;
    font-size: var(--font-base);
    color: var(--color-dark);
    line-height: 1.6;
    background: #fff;
}

h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: var(--space-sm);
}

h1 { font-size: var(--font-scale-4); }
h2 { font-size: var(--font-scale-3); }
h3 { font-size: var(--font-scale-2); }
h4 { font-size: var(--font-scale-1); }

/* ----------------------------------------------------------
   Header
---------------------------------------------------------- */

/* Smaller header */
.navbar {
    padding-top: 0.25rem;
    padding-bottom: 0.25rem;
}

.navbar-brand img {
    height: 44px;
}

.nav-link {
    font-weight: 600;
    padding: 0.25rem var(--space-sm);
}

.nav-link:hover {
    color: var(--color-primary);
}

/* ----------------------------------------------------------
   Hero Section
---------------------------------------------------------- */

.hero-bg-image {
    min-height: 70vh;
    background-size: cover;
    background-position: center;
    position: relative;
}

.hero-bg-image::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.45);
}

.hero-bg-image .container {
    position: relative;
    z-index: 2;
}

.hero-bg-image h1 {
    font-size: var(--font-scale-hero);
    color: var(--color-white);
}

.hero-bg-image p {
    color: var(--color-white);
    font-size: var(--font-scale-1);
}

/* ----------------------------------------------------------
   Trust Indicators
---------------------------------------------------------- */

.trust-bar div {
    font-weight: 600;
    font-size: var(--font-scale-1);
}

/* ----------------------------------------------------------
   Service Cards
---------------------------------------------------------- */

.service-card {
    border-radius: var(--radius-md);
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.service-card img {
    border-radius: var(--radius-sm);
}

/* ----------------------------------------------------------
   Guarantee Section
---------------------------------------------------------- */

ul.list-unstyled li {
    margin-bottom: var(--space-xs);
    font-size: var(--font-scale-1);
}

/* ----------------------------------------------------------
   Buttons
---------------------------------------------------------- */

.btn-primary {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary-light);
}

.btn-success {
    background: var(--color-accent);
    border-color: var(--color-accent);
}

.btn-success:hover {
    background: var(--color-accent-light);
    border-color: var(--color-accent-light);
}

.btn-outline-light {
    border-width: 2px;
    font-weight: 600;
}

/* Footer call buttons override */
.footer .btn-light {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
    font-weight: 600;
}

.footer .btn-light:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary-light);
    color: #fff;
}

/* Call buttons (mobile + CTA) */
.call-btn {
    display: inline-block;
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-align: center;
    color: var(--color-white);
    text-decoration: none;
    transition: background 0.25s ease, transform 0.15s ease;
}

.call-btn-landline {
    background: var(--color-primary);
}

.call-btn-landline:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
}

.call-btn-mobile {
    background: var(--color-accent);
}

.call-btn-mobile:hover {
    background: var(--color-accent-light);
    transform: translateY(-2px);
}

@media (max-width: 576px) {
    .call-btn {
        width: 100%;
    }
}

/* ----------------------------------------------------------
   Footer
---------------------------------------------------------- */

.footer {
    background: #111;
    color: var(--color-white);
}

.footer a {
    color: var(--color-white);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

.footer h4 {
    margin-bottom: var(--space-sm);
}

/* ----------------------------------------------------------
   Utility
---------------------------------------------------------- */

.gap-3 {
    gap: 1rem;
}

.shadow-sm {
    box-shadow: var(--shadow-sm);
}

.shadow-md {
    box-shadow: var(--shadow-md);
}