/* ============================================================
   Integral Leadership Design — Main Stylesheet
   Design System v2 | Last updated: March 2026
   
   TABLE OF CONTENTS:
   1.  Google Fonts import
   2.  CSS custom properties (design tokens / variables)
   3.  CSS reset and base element defaults
   4.  Typography — headings, body text, links
   5.  Utility classes — section labels, shared layout helpers
   6.  Buttons
   7.  Header and logo
   8.  Navigation — top bar and dropdowns
   9.  Hero section
   10. Services section
   11. Approach section
   12. About section
   13. Testimonials section
   14. Blog / Recent Posts section
   15. CTA Band (gold call-to-action strip)
   16. Footer
   17. Responsive breakpoints (tablet and mobile)
   ============================================================ */


/* ------------------------------------------------------------
   1. GOOGLE FONTS
   Playfair Display = serif font used for all headings
   Open Sans = sans-serif font used for body text and UI
   'display=swap' means text shows immediately in fallback font
   while the custom font loads — prevents invisible text flash
   ------------------------------------------------------------ */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700&family=Open+Sans:wght@400;500;600;700&display=swap');


/* ------------------------------------------------------------
   2. CSS CUSTOM PROPERTIES (design tokens)
   Defined on :root so they're available everywhere in the file.
   Change a value here and it updates consistently site-wide.
   ------------------------------------------------------------ */
:root {
    /* Colours */
    --color-dark:    #1a1a2e;   /* Deep navy — used for header, footer, dark sections */
    --color-accent:  #c8973a;   /* Gold — used for highlights, buttons, borders, hover states */
    --color-body:    #2d2d2d;   /* Near-black — default body text colour */
    --color-bg:      #ffffff;   /* White — default page background */
    --color-bg-alt:  #f7f5f2;   /* Warm off-white — alternating section backgrounds */
    --color-border:  #e0dbd4;   /* Light warm grey — card borders and dividers */
    --color-muted:   #6b6460;   /* Medium grey — secondary/body text inside cards */

    /* Fonts */
    --font-serif:    'Playfair Display', Georgia, serif;  /* Headings */
    --font-sans:     'Open Sans', sans-serif;             /* Body, nav, UI */

    /* Layout */
    --max-w:         1200px;        /* Maximum content width — content stays centred on wide screens */
    --section-pad:   5rem 1.5rem;   /* Consistent top/bottom padding for all full-width sections */
}


/* ------------------------------------------------------------
   3. CSS RESET AND BASE DEFAULTS
   Removes browser inconsistencies and establishes a clean base.
   box-sizing: border-box means padding/border are included in
   element width calculations (much more intuitive to work with).
   ------------------------------------------------------------ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;          /* Base font size — rem units scale from this */
    scroll-behavior: smooth;  /* Smooth scroll when clicking anchor links */
}

body {
    font-family: var(--font-sans);
    color: var(--color-body);
    background: var(--color-bg);
    line-height: 1.7;  /* Comfortable reading line height */
}

/* Images never overflow their container; display:block removes
   the small gap browsers add below inline images */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Default link style — gold, no underline, smooth colour transition */
a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s;
}
a:hover { color: #a67a2a; }  /* Darker gold on hover */


/* ------------------------------------------------------------
   4. TYPOGRAPHY
   clamp() creates fluid font sizes that scale between a minimum
   and maximum based on viewport width — no media queries needed
   for typography.
   ------------------------------------------------------------ */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--color-dark);
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }    /* Large hero headline */
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); } /* Section headlines */
h3 { font-size: 1.35rem; }                       /* Card titles */

p { margin-bottom: 1rem; }


/* ------------------------------------------------------------
   5. UTILITY CLASSES
   Reusable helpers used across multiple sections.
   ------------------------------------------------------------ */

/* Small uppercase gold label that appears above section headlines
   e.g. "WHAT WE DO" above "Our Services" */
.section-label {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
    display: block;
}


/* ------------------------------------------------------------
   6. BUTTONS
   Three variants: primary (gold fill), outline (white border for
   dark backgrounds), outline-dark (dark border for light backgrounds)
   ------------------------------------------------------------ */
.btn {
    display: inline-block;
    padding: 0.85rem 2rem;
    border-radius: 3px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: all 0.2s;
    cursor: pointer;
    border: 2px solid transparent;
}

/* Gold filled — used on hero and dark backgrounds */
.btn-primary { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }
.btn-primary:hover { background: #a67a2a; border-color: #a67a2a; color: #fff; }

/* White outline — used on dark/coloured backgrounds */
.btn-outline { background: transparent; color: #fff; border-color: #fff; }
.btn-outline:hover { background: #fff; color: var(--color-dark); }

/* Dark outline — used on light/white backgrounds */
.btn-outline-dark { background: transparent; color: var(--color-dark); border-color: var(--color-dark); }
.btn-outline-dark:hover { background: var(--color-dark); color: #fff; }


/* ------------------------------------------------------------
   7. HEADER AND LOGO
   Sticky header stays fixed at the top as the user scrolls.
   z-index: 100 ensures it floats above all page content.
   ------------------------------------------------------------ */
.l-header {
    background: var(--color-dark);
    position: sticky;       /* Stays at top of viewport while scrolling */
    top: 0;
    z-index: 100;           /* Above all page sections */
    box-shadow: 0 2px 12px rgba(0,0,0,0.3);
}

/* Inner wrapper constrains the header content to max-width
   and spaces the logo and nav on opposite sides */
.header-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

/* Logo link — flex row so image and/or text sit side by side */
.logo a {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
}

/* The ILD logo PNG is inverted to white so it shows on the dark header */
.logo img {
    height: 38px;
    width: auto;
    filter: brightness(0) invert(1);  /* Converts dark logo to white */
    flex-shrink: 0;
}

/* Text fallback used when the logo image fails to load */
.logo-name {
    font-family: var(--font-serif);
    font-size: 1rem;
    color: #fff;
    line-height: 1.25;
    white-space: nowrap;
}


/* ------------------------------------------------------------
   8. NAVIGATION — top bar and dropdown menus
   The nav sits inside the header on the right side.
   Dropdowns are pure CSS — they appear on :hover using
   display:none / display:block toggled by the parent .nav-dropdown
   ------------------------------------------------------------ */

/* Flex container that holds the hamburger button + nav menu */
.w-nav { display: flex; align-items: center; }

/* Horizontal list of top-level nav items */
.nav-menu {
    display: flex;
    list-style: none;
    gap: 0;
    align-items: center;
}

/* Each top-level item needs position:relative so its dropdown
   can be positioned absolutely relative to it */
.nav-menu > li { position: relative; }

/* Base style for all nav links — top-level and dropdown items */
.nav-link {
    display: block;
    color: rgba(255,255,255,0.85);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    padding: 0.5rem 0.7rem;
    border-radius: 3px;
    transition: all 0.2s;
    white-space: nowrap;  /* Prevents nav labels from wrapping to two lines */
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,0.08); }

/* "Book a Call" button — overrides the default nav-link style with gold background */
.nav-cta { background: var(--color-accent) !important; color: #fff !important; margin-left: 0.5rem; padding: 0.5rem 1rem !important; }
.nav-cta:hover { background: #a67a2a !important; color: #fff !important; }

/* Dropdown panel — hidden by default, shown on hover of parent li */
.nav-dropdown .submenu {
    display: none;                              /* Hidden until parent is hovered */
    position: absolute;                         /* Positioned below the parent nav item */
    top: 100%;                                  /* Sits directly below the parent link */
    left: 0;
    background: var(--color-dark);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 3px;
    min-width: 200px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
    z-index: 200;                               /* Above all page content */
    list-style: none;
    padding: 0.5rem 0;
}

/* Show the dropdown when hovering the parent li */
.nav-dropdown:hover .submenu { display: block; }

/* Dropdown item links — slightly different padding/radius from top-level */
.submenu .nav-link { padding: 0.6rem 1rem; border-radius: 0; font-size: 0.8rem; }
.submenu .nav-link:hover { background: rgba(255,255,255,0.08); color: #fff; }

/* Hamburger menu button — hidden on desktop, shown on mobile via media query */
.nav-toggle {
    display: none;           /* Hidden on desktop */
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
}
/* The three horizontal bars of the hamburger icon */
.nav-toggle span { width: 24px; height: 2px; background: #fff; border-radius: 2px; display: block; }


/* ------------------------------------------------------------
   9. HERO SECTION
   Full-width banner at the top of the homepage.
   Uses a background image with a semi-transparent overlay div
   so the image doesn't overpower the text on top.
   ------------------------------------------------------------ */
.hero {
    position: relative;     /* Required so absolutely-positioned children (.hero-bg) work correctly */
    min-height: 580px;
    display: flex;
    align-items: center;    /* Vertically centres the content inside the hero */
    background: var(--color-dark);  /* Fallback colour if image fails to load */
    overflow: hidden;
}

/* The background image layer — sits behind everything else.
   opacity: 0.6 lets the dark background show through, making
   the text box readable without a separate overlay element */
.hero-bg {
    position: absolute;
    inset: 0;                               /* Shorthand for top/right/bottom/left: 0 */
    background-image: url('/img/hero.jpg');
    background-size: cover;
    background-position: 65% center;        /* Shows Alexandra's face right-of-center; text box sits left */
    opacity: 0.75;                          /* Slightly higher than before so Alexandra is more visible */
}

/* The content wrapper — constrains to max-width and positions text to the left */
.hero-content {
    position: relative;
    z-index: 1;                 /* Sits above the .hero-bg layer */
    width: 100%;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 5rem 1.5rem;
    display: flex;
    justify-content: flex-start;  /* Text box on left, photo visible on right */
}

/* The semi-transparent dark box that contains the headline and CTA */
.hero-text {
    max-width: 480px;
    background: rgba(26,26,46,0.85);  /* Dark navy at 85% opacity */
    padding: 2.5rem;
    border-radius: 2px;
}

.hero-text h1 { color: #fff; margin-bottom: 0.75rem; }

/* "People Focused. Growth Oriented. Results Driven." — gold tagline */
.hero-tagline {
    color: var(--color-accent);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

/* Descriptive paragraph below the tagline */
.hero-description { color: rgba(255,255,255,0.75); font-size: 0.95rem; margin-bottom: 1.75rem; }


/* ------------------------------------------------------------
   10. SERVICES SECTION
   Four-column card grid on white background.
   auto-fit with minmax means cards reflow gracefully on smaller
   screens without needing explicit breakpoints for this section.
   ------------------------------------------------------------ */
.services { padding: var(--section-pad); background: var(--color-bg); }

/* Shared inner wrapper used by most sections to constrain and centre content */
.section-inner { max-width: var(--max-w); margin: 0 auto; }

/* Centred section header used by Services, Testimonials, Blog */
.section-header { text-align: center; margin-bottom: 3rem; }

/* Responsive grid — fills as many columns as fit at min 240px wide */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 2rem; }

/* Individual service card — gold top border signals the brand accent colour */
.service-card {
    border: 1px solid var(--color-border);
    border-top: 4px solid var(--color-accent);  /* Distinctive gold top stripe */
    padding: 2rem 1.75rem;
    border-radius: 2px;
    transition: box-shadow 0.2s;
}
.service-card:hover { box-shadow: 0 6px 24px rgba(0,0,0,0.08); }
.service-card h3 { color: var(--color-dark); margin-bottom: 0.75rem; }
.service-card p { color: var(--color-muted); margin-bottom: 1rem; font-size: 0.95rem; }
.read-more { font-size: 0.875rem; font-weight: 700; color: var(--color-accent); }


/* ------------------------------------------------------------
   11. APPROACH SECTION
   Dark background (navy) with two-column layout:
   left = text and CTA button, right = 4 pillar boxes
   ------------------------------------------------------------ */
.approach { padding: var(--section-pad); background: var(--color-dark); }

.approach .section-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;  /* Equal width left/right columns */
    gap: 4rem;
    align-items: center;
}

.approach h2 { color: #fff; }
.approach p { color: rgba(255,255,255,0.8); }

/* 2x2 grid of Enquire / Engage / Innovate / Impact boxes */
.approach-pillars { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }

/* Each pillar has a gold left border as its visual accent */
.pillar { border-left: 3px solid var(--color-accent); padding-left: 1rem; }
.pillar h4 {
    color: var(--color-accent);
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}
.pillar p { color: rgba(255,255,255,0.7); font-size: 0.875rem; margin: 0; }


/* ------------------------------------------------------------
   12. ABOUT SECTION
   Warm off-white background with two-column layout:
   left = photo, right = bio text and button.
   The 320px fixed left column keeps the photo a consistent size
   regardless of screen width.
   ------------------------------------------------------------ */
.about { padding: var(--section-pad); background: var(--color-bg-alt); }

.about .section-inner {
    display: grid;
    grid-template-columns: 320px 1fr;  /* Fixed photo column, flexible text column */
    gap: 4rem;
    align-items: start;  /* Aligns photo to top of text, not centre */
}

/* Photo fills its fixed-width column; box-shadow gives it depth */
.about-photo img { width: 100%; border-radius: 2px; box-shadow: 0 8px 32px rgba(0,0,0,0.12); }
.about-text h2 { margin-bottom: 1.25rem; }
.about-text p { color: var(--color-muted); }
.about-text .btn { margin-top: 1rem; }


/* ------------------------------------------------------------
   13. TESTIMONIALS SECTION
   White background, three-column card grid.
   The decorative opening quote mark is generated via CSS ::before
   pseudo-element so it doesn't appear in the HTML source.
   ------------------------------------------------------------ */
.testimonials { padding: var(--section-pad); background: var(--color-bg); }

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2.5rem;
}

.testimonial-card { background: var(--color-bg-alt); padding: 2rem; border-radius: 2px; position: relative; }

/* Decorative large opening quote mark — purely cosmetic, generated by CSS */
.testimonial-card::before {
    content: '\201C';                   /* Unicode left double quotation mark */
    font-family: var(--font-serif);
    font-size: 5rem;
    color: var(--color-accent);
    opacity: 0.3;
    position: absolute;
    top: 0.5rem;
    left: 1.25rem;
    line-height: 1;
}

/* padding-top pushes the text below the large decorative quote mark */
.testimonial-text { font-size: 0.95rem; color: var(--color-muted); line-height: 1.8; margin-bottom: 1.25rem; padding-top: 1.5rem; }
.testimonial-author { font-weight: 700; font-size: 0.875rem; color: var(--color-dark); }


/* ------------------------------------------------------------
   14. BLOG / RECENT POSTS SECTION
   Warm off-white background, three-column card grid.
   Cards get a gold bottom border as a design accent (inverted
   from the service cards which have a gold top border).
   Posts are pulled dynamically from Hugo's content pipeline.
   ------------------------------------------------------------ */
.recent-posts { padding: var(--section-pad); background: var(--color-bg-alt); }

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2.5rem;
}

/* Blog card — gold bottom border instead of top, for visual variety */
.post-card {
    background: var(--color-bg);
    padding: 1.75rem;
    border-radius: 2px;
    border-bottom: 3px solid var(--color-accent);
    transition: box-shadow 0.2s;
}
.post-card:hover { box-shadow: 0 6px 24px rgba(0,0,0,0.08); }
.post-card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.post-card h3 a { color: var(--color-dark); }
.post-card h3 a:hover { color: var(--color-accent); }
.post-date { font-size: 0.8rem; color: var(--color-muted); margin-bottom: 0.75rem; }
.post-card p { font-size: 0.9rem; color: var(--color-muted); }


/* ------------------------------------------------------------
   15. CTA BAND
   Full-width gold strip between the blog section and footer.
   Used as a final conversion prompt — "Not Sure What You Need?"
   ------------------------------------------------------------ */
.cta-band { padding: 4rem 1.5rem; background: var(--color-accent); text-align: center; }
.cta-band h2 { color: #fff; margin-bottom: 0.5rem; }
.cta-band p { color: rgba(255,255,255,0.85); margin-bottom: 1.75rem; }


/* ------------------------------------------------------------
   16. FOOTER
   Dark navy background matching the header, three-column grid:
   left = brand/logo/contact, middle = Services links, right = Company links.
   The footer-bottom strip holds the copyright line.
   ------------------------------------------------------------ */
.l-footer {
    background: var(--color-dark);
    color: rgba(255,255,255,0.7);
    padding: 4rem 1.5rem 0;  /* No bottom padding — footer-bottom handles that */
}

/* Three-column grid: brand column is wider (1.5fr) than the two link columns (1fr each) */
.footer-content {
    max-width: var(--max-w);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
}

/* Logo in footer — same invert filter as the header logo */
.footer-brand .logo img { height: 36px; filter: brightness(0) invert(1); margin-bottom: 1rem; }
.footer-brand .logo-text { font-family: var(--font-serif); font-size: 1rem; color: #fff; }
.footer-brand p { font-size: 0.875rem; line-height: 1.8; margin-top: 0.75rem; }
.footer-brand a { color: rgba(255,255,255,0.7); }
.footer-brand a:hover { color: var(--color-accent); }

/* Column headings — small uppercase labels like "SERVICES" and "COMPANY" */
.footer-col h4 {
    color: #fff;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 0.5rem; }
.footer-col ul a { color: rgba(255,255,255,0.6); font-size: 0.875rem; transition: color 0.2s; }
.footer-col ul a:hover { color: var(--color-accent); }

/* Thin top border separates the copyright line from the columns above */
.footer-bottom {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 1.5rem 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.4);
}


/* ------------------------------------------------------------
   17. RESPONSIVE BREAKPOINTS
   Tablet (max 768px) — stacks multi-column layouts to single column,
   shows the hamburger menu, hides the horizontal nav.
   Mobile (max 480px) — service cards go single column.
   ------------------------------------------------------------ */
@media (max-width: 768px) {

    /* Footer columns stack vertically */
    .footer-content { grid-template-columns: 1fr; gap: 2rem; }

    /* Hide the horizontal nav menu by default on mobile */
    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px;              /* Sits directly below the 72px header */
        left: 0;
        width: 100%;
        background: var(--color-dark);
        padding: 1rem 0;
    }

    /* JS adds .active class when hamburger is tapped — this shows the menu */
    .nav-menu.active { display: flex; }

    /* Show the hamburger button on mobile */
    .nav-toggle { display: flex; }

    /* Dropdowns flow inline (not floating) on mobile */
    .submenu { position: static; box-shadow: none; border: none; background: rgba(255,255,255,0.05); }

    /* Reduce hero height on smaller screens */
    .hero { min-height: 480px; }

    /* About photo and text stack vertically */
    .about .section-inner { grid-template-columns: 1fr; }

    /* Services go to two columns on tablet */
    .services-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
    /* Services go single column on phones */
    .services-grid { grid-template-columns: 1fr; }
}