/* ============================================
   Beme Digital Website Styles
   British Racing Green & Brass Palette
   Mobile-first, Refined British Minimalism
   ============================================ */

/* CSS Custom Properties */
:root {
    /* Colour Palette: British Racing Green & Brass */
    --primary: #1E3D2F;
    --accent: #B8860B;
    --background: #FAF9F7;
    --text: #1A1A1A;
    --text-secondary: #4A4A4A;
    --subtle-accent: #D4C5B5;
    --white: #FFFFFF;
    --border-light: rgba(30, 61, 47, 0.1);
    --border-medium: rgba(30, 61, 47, 0.2);

    /* Typography */
    --font-display: 'DM Serif Display', serif;
    --font-body: 'DM Sans', sans-serif;

    /* Fluid Typography (mobile base) */
    --text-xs: clamp(0.875rem, 0.85rem + 0.125vw, 1rem);
    --text-sm: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --text-base: clamp(1.125rem, 1.05rem + 0.375vw, 1.25rem);
    --text-lg: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
    --text-xl: clamp(1.5rem, 1.35rem + 0.75vw, 2rem);
    --text-2xl: clamp(2rem, 1.75rem + 1.25vw, 2.75rem);
    --text-3xl: clamp(2.5rem, 2rem + 2.5vw, 4rem);
    --text-4xl: clamp(3rem, 2.5rem + 2.5vw, 5rem);

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    --space-4xl: 8rem;

    /* Layout */
    --container-max: 1200px;
    --container-narrow: 700px;
    --container-padding: 1.5rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    /* Shadows */
    --shadow-subtle: 0 1px 3px rgba(30, 61, 47, 0.08);
    --shadow-medium: 0 4px 12px rgba(30, 61, 47, 0.12);
}

/* ============================================
   Reset & Base Styles
   ============================================ */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 100%;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Respect user preference for reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.7;
    color: var(--text);
    background-color: var(--background);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    line-height: 1.2;
    font-weight: 400;
    color: var(--primary);
    margin-bottom: var(--space-md);
}

h1 {
    font-size: var(--text-4xl);
}

h2 {
    font-size: var(--text-3xl);
}

h3 {
    font-size: var(--text-xl);
}

p {
    margin-bottom: var(--space-md);
}

p:last-child {
    margin-bottom: 0;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover,
a:focus {
    color: var(--accent);
}

/* Focus styles for accessibility */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

/* Visually hidden (accessible to screen readers) */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ============================================
   Layout Containers
   ============================================ */

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.container-narrow {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

section {
    padding: var(--space-3xl) 0;
}

/* ============================================
   Section 1: Hero
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, var(--background) 0%, #f5f3f0 100%);
    padding: var(--space-2xl) var(--container-padding);
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-headline {
    font-size: var(--text-4xl);
    color: var(--primary);
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.hero-subheadline {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto var(--space-xl);
    line-height: 1.6;
}

.cta-button {
    display: inline-block;
    background-color: var(--accent);
    color: var(--white);
    padding: 1rem 2.5rem;
    font-size: var(--text-base);
    font-weight: 600;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    font-family: var(--font-body);
    letter-spacing: 0.01em;
}

.cta-button:hover,
.cta-button:focus {
    background-color: #9a7109;
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
    color: var(--white);
}

.cta-button:active {
    transform: translateY(0);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    opacity: 0.6;
}

.scroll-text {
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    font-weight: 500;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--primary), transparent);
    animation: scroll-animation 2s ease-in-out infinite;
}

@keyframes scroll-animation {
    0%, 100% {
        opacity: 0;
        transform: translateY(-10px);
    }
    50% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hero fade-in animations */
.fade-in {
    animation: fadeInUp 0.8s ease-out forwards;
    opacity: 0;
}

.fade-in-delay-1 {
    animation: fadeInUp 0.8s ease-out 0.2s forwards;
    opacity: 0;
}

.fade-in-delay-2 {
    animation: fadeInUp 0.8s ease-out 0.4s forwards;
    opacity: 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Section 2: Problem
   ============================================ */

.problem-section {
    background-color: #f5f3f0;
    text-align: center;
}

.section-heading {
    font-size: var(--text-2xl);
    color: var(--primary);
    margin-bottom: var(--space-xl);
}

.problem-content {
    max-width: 600px;
    margin: 0 auto;
}

.problem-content p {
    font-size: var(--text-base);
    color: var(--text-secondary);
    line-height: 1.8;
}

.transition-statement {
    font-weight: 600;
    color: var(--primary);
    margin-top: var(--space-lg);
    font-size: var(--text-lg);
}

/* ============================================
   Section 3: Approach
   ============================================ */

.approach-section {
    background-color: var(--background);
}

.approach-grid {
    display: grid;
    gap: var(--space-2xl);
    margin-top: var(--space-xl);
}

.approach-item {
    position: relative;
    padding-left: 0;
}

.approach-number {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-xl);
    color: var(--accent);
    margin-bottom: var(--space-sm);
    font-weight: 400;
}

.approach-item h3 {
    font-size: var(--text-xl);
    color: var(--primary);
    margin-bottom: var(--space-sm);
}

.approach-item p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ============================================
   Section 4: Solutions
   ============================================ */

.solutions-section {
    background-color: var(--white);
}

.solutions-intro {
    text-align: center;
    font-size: var(--text-base);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    margin-top: var(--space-md);
    line-height: 1.7;
}

.solutions-list {
    margin-top: var(--space-3xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-3xl);
}

.solution-scenario {
    position: relative;
    padding: var(--space-xl) 0;
    border-bottom: 1px solid var(--border-light);
}

.solution-scenario:last-child {
    border-bottom: none;
}

.scenario-label {
    display: inline-block;
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: var(--space-sm);
    font-family: var(--font-body);
}

.solution-scenario h3 {
    font-size: var(--text-xl);
    color: var(--primary);
    margin-bottom: var(--space-md);
    line-height: 1.3;
    font-weight: 400;
}

.solution-scenario p {
    color: var(--text-secondary);
    font-size: var(--text-base);
    line-height: 1.8;
    max-width: 800px;
}

/* ============================================
   Section 5: Geographic Reach
   ============================================ */

.reach-section {
    background-color: var(--primary);
    color: var(--white);
    text-align: center;
    position: relative;
}

.reach-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--accent), transparent);
}

.section-heading-large {
    font-size: var(--text-2xl);
    color: var(--white);
    margin-bottom: var(--space-lg);
}

.reach-content {
    font-size: var(--text-base);
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    max-width: 650px;
    margin: 0 auto;
}

/* ============================================
   Section 6: Contact
   ============================================ */

.contact-section {
    background-color: var(--background);
    text-align: center;
}

.contact-intro {
    font-size: var(--text-base);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-2xl);
    line-height: 1.8;
}

.contact-methods {
    max-width: 500px;
    margin: 0 auto;
}

.email-link {
    display: inline-block;
    font-size: var(--text-xl);
    font-family: var(--font-display);
    color: var(--accent);
    margin-bottom: var(--space-lg);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: border-color var(--transition-base);
}

.email-link:hover,
.email-link:focus {
    border-bottom-color: var(--accent);
    color: var(--accent);
}

.contact-divider {
    position: relative;
    margin: var(--space-xl) 0;
    text-align: center;
}

.contact-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background-color: var(--border-light);
}

.contact-divider span {
    position: relative;
    display: inline-block;
    background-color: var(--background);
    padding: 0 var(--space-md);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    text-transform: lowercase;
}

/* Contact Form */
.contact-form {
    text-align: left;
}

.form-group {
    margin-bottom: var(--space-lg);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--text);
    background-color: var(--white);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(184, 134, 11, 0.1);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

.contact-form textarea {
    resize: vertical;
    min-height: 150px;
}

.contact-form .cta-button {
    width: 100%;
    margin-top: var(--space-sm);
}

/* Form states */
.contact-form input:invalid:not(:placeholder-shown),
.contact-form textarea:invalid:not(:placeholder-shown) {
    border-color: #dc3545;
}

.contact-form input:valid:not(:placeholder-shown),
.contact-form textarea:valid:not(:placeholder-shown) {
    border-color: var(--accent);
}

.form-message {
    margin-top: var(--space-md);
    padding: var(--space-md);
    border-radius: 4px;
    font-size: var(--text-sm);
    text-align: center;
    display: none;
}

.form-message.success {
    display: block;
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-message.error {
    display: block;
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Loading state for submit button */
.cta-button.loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.cta-button.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid var(--white);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spinner 0.6s linear infinite;
}

@keyframes spinner {
    to {
        transform: rotate(360deg);
    }
}

/* ============================================
   Section 7: Footer
   ============================================ */

.footer {
    background-color: var(--primary);
    color: var(--white);
    padding: var(--space-xl) 0;
    border-top: 1px solid rgba(184, 134, 11, 0.2);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    text-align: center;
}

.copyright {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.8);
}

.footer-nav {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
    justify-content: center;
}

.footer-nav a {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--text-sm);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base);
}

.footer-nav a:hover,
.footer-nav a:focus {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

/* ============================================
   Responsive Design: Tablet (768px+)
   ============================================ */

@media (min-width: 768px) {
    :root {
        --container-padding: 2rem;
    }

    section {
        padding: var(--space-4xl) 0;
    }

    .hero {
        padding: var(--space-3xl) var(--container-padding);
    }

    .approach-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-xl);
    }

    .solution-scenario h3 {
        font-size: var(--text-2xl);
    }

    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

/* ============================================
   Responsive Design: Desktop (1024px+)
   ============================================ */

@media (min-width: 1024px) {
    :root {
        --container-padding: 3rem;
    }

    .hero-headline {
        letter-spacing: -0.03em;
    }

    .approach-item {
        padding-left: var(--space-lg);
        border-left: 2px solid var(--subtle-accent);
    }

    .approach-number {
        position: absolute;
        left: -0.5rem;
        top: -0.25rem;
        background-color: var(--background);
        padding-right: 0.5rem;
    }

    .solutions-list {
        gap: var(--space-4xl);
    }

    .solution-scenario {
        padding: var(--space-2xl) 0;
    }
}

/* ============================================
   Responsive Design: Large Desktop (1200px+)
   ============================================ */

@media (min-width: 1200px) {
    .solution-scenario h3 {
        font-size: var(--text-2xl);
        max-width: 900px;
    }
}

/* ============================================
   Intersection Observer Reveal Animations
   ============================================ */

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger animation delays for grid items */
.reveal-stagger:nth-child(1) { transition-delay: 0s; }
.reveal-stagger:nth-child(2) { transition-delay: 0.1s; }
.reveal-stagger:nth-child(3) { transition-delay: 0.2s; }
.reveal-stagger:nth-child(4) { transition-delay: 0.3s; }

/* ============================================
   Print Styles
   ============================================ */

@media print {
    * {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }

    a[href]::after {
        content: " (" attr(href) ")";
    }

    .scroll-indicator,
    .contact-form,
    .cta-button {
        display: none;
    }

    section {
        page-break-inside: avoid;
    }

    h1, h2, h3 {
        page-break-after: avoid;
    }
}