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

:root {
    --marrs-green: #008C8C;
    --marrs-dark: #006666;
    --marrs-light: #00a6a6;
    --white: #ffffff;
    --off-white: #f8f8f8;
    --light-teal: rgba(0, 140, 140, 0.1);
    --medium-teal: rgba(0, 140, 140, 0.2);
    --transparent-white: rgba(255, 255, 255, 0.1);
    --border-white: rgba(255, 255, 255, 0.3);

    /* Fonts: everything Overpass, numbers in News Cycle */
    --font-heading: 'Overpass', system-ui;
    --font-body: 'Overpass', system-ui;
    --font-numeric: 'News Cycle', system-ui;

    --spacing-xs: clamp(0.25rem, 1vw, 0.5rem);
    --spacing-sm: clamp(0.5rem, 2vw, 1rem);
    --spacing-md: clamp(1rem, 3vw, 1.5rem);
    --spacing-lg: clamp(1.5rem, 4vw, 2rem);
    --spacing-xl: clamp(2rem, 5vw, 3rem);
    --spacing-2xl: clamp(3rem, 6vw, 4rem);

    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;

    --min-width: 375px;
    --max-width: 1200px;
    --header-height: auto;
}

html {
    min-width: var(--min-width);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: clamp(1rem, 2.2vw, 1.1rem); /* slightly larger for accessibility */
    line-height: 1.6;
    color: var(--white);
    background-color: var(--marrs-green);
    min-width: var(--min-width);
    -webkit-font-smoothing: antialiased;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: var(--spacing-sm);
    background: var(--white);
    color: var(--marrs-green);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 4px;
    z-index: 1000;
    font-weight: 600;
}

.skip-link:focus {
    top: var(--spacing-sm);
}

/* Header: non-sticky; scrolls away normally */
.header {
    background: var(--marrs-green);
    border-bottom: 3px solid var(--white);
    position: relative;
    z-index: 100;
    container-type: inline-size;
}

.nav {
    width: 100%;
}

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

/* Center the logo row by default */
.nav-brand {
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-inline: 0;
    padding-block: var(--spacing-sm); /* breathing room around logo row */
}

/* SVG logo scaling: width-driven, capped on large screens */
.logo-svg {
    width: 100%;
    max-width: 900px;      /* cap for large desktops / ultra-wide */
    height: auto;
    display: block;
    flex-shrink: 0;
    margin-inline: auto;
    margin-block: var(--spacing-xs);  /* subtle vertical margin around logo */
    color: var(--white);
}

.logo-svg svg {
    height: 100%;
    width: 100%;
    display: block;
    max-width: 100%;
    overflow: visible;
}

/* IMPROVED: Sticky nav bar with horizontal scroll on mobile */
.tab-nav {
    position: sticky;
    top: 0;
    z-index: 90;
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    border-bottom: 2px solid var(--border-white);
    background: var(--marrs-green);
    container-type: inline-size;
    /* Allow horizontal scroll on mobile */
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: thin;
    -webkit-overflow-scrolling: touch;
    padding: 0;
    width: 100%;
}

/* Style the scrollbar for better visibility */
.tab-nav::-webkit-scrollbar {
    height: 4px;
}

.tab-nav::-webkit-scrollbar-track {
    background: var(--transparent-white);
}

.tab-nav::-webkit-scrollbar-thumb {
    background: var(--border-white);
    border-radius: 2px;
}

.tab-button {
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    font-family: var(--font-body);
    font-size: clamp(0.95rem, 2.1vw, 1.05rem);
    font-weight: 600;
    transition: all var(--transition-fast);
    margin-bottom: -2px;
    opacity: 0.8;
    white-space: nowrap;
    -webkit-tap-highlight-color: transparent;
    flex: 0 0 auto; /* Don't grow or shrink, maintain natural width */
}

/* Mobile: Keep buttons in single row with horizontal scroll */
@media (max-width: 768px) {
    .tab-nav {
        justify-content: flex-start; /* Align to start on mobile */
        padding: 0 var(--spacing-xs);
    }
    
    .tab-button {
        padding: var(--spacing-sm) var(--spacing-sm);
        font-size: 0.95rem;
    }
    
    /* Visual indicator that there's more content to scroll */
    .tab-nav::after {
        content: '';
        position: absolute;
        right: 0;
        top: 0;
        bottom: 0;
        width: 20px;
        background: linear-gradient(to right, transparent, var(--marrs-green));
        pointer-events: none;
    }
}

.tab-button:hover {
    opacity: 1;
    background: var(--transparent-white);
}

.tab-button.active {
    color: var(--white);
    border-bottom-color: var(--white);
    opacity: 1;
}

.tab-button:focus-visible {
    outline: 2px solid var(--white);
    outline-offset: 2px;
    border-radius: 4px;
}

.main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg);
    min-height: calc(100vh - 200px);
    container-type: inline-size;
}

.tab-content {
    display: none;
    animation: fadeIn var(--transition-medium);
}

.tab-content.active {
    display: block;
}

.tab-content:not(.active) {
    content-visibility: auto;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@starting-style {
    .tab-content.active {
        opacity: 0;
    }
}

.hero {
    text-align: center;
    padding: var(--spacing-sm) 0 var(--spacing-xl);
    max-width: 900px;
    margin-inline: auto;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    color: var(--white);
    margin-bottom: var(--spacing-xl);
    font-weight: 500;        /* slightly lighter than default */
    line-height: 1.3;        /* adds tall*/
    letter-spacing: 0.01em;  /* makes it read taller */
}

.hero-text {
    font-size: clamp(1rem, 2vw, 1.1rem);
    line-height: 1.8;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.cta-section {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--transparent-white);
    border: 2px solid var(--white);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.cta-button {
    background: var(--white);
    color: var(--marrs-green);
    border: none;
    padding: var(--spacing-sm) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 700;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-body);
    margin-top: var(--spacing-md);
}

.cta-button:hover {
    background: var(--off-white);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

/* SERVICES TAB LAYOUT */

.services-overview {
    max-width: 1000px;     /* keep the services block narrower */
    margin-inline: auto;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    max-width: 1000px;     /* keeps cards from stretching too wide */
    margin-inline: auto;
}

@supports (grid-template-columns: subgrid) {
    .card-grid {
        grid-template-rows: subgrid;
    }
}

.card {
    background: var(--transparent-white);
    padding: var(--spacing-lg);
    border: 2px solid var(--white);
    border-radius: 8px;
    transition: all var(--transition-fast);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    container-type: inline-size;
}

.card:hover {
    background: var(--medium-teal);
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.7rem, 4.5vw, 2.3rem);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    font-weight: 500;        /* slightly less bold */
    line-height: 1.3;        /* a bit taller vertically */
    letter-spacing: 0.01em;  /* subtle tracking like the hero */
}

h3 {
    font-family: var(--font-heading);
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    margin-bottom: var(--spacing-sm);
}

.services-list {
    margin-top: var(--spacing-lg);
}

.service-item {
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    background: var(--transparent-white);
    border-radius: 8px;
    border-left: 4px solid var(--white);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* TECHNICAL PROFICIENCIES (pill-style tags) */

.proficiencies {
    margin-top: var(--spacing-2xl);
}

.skill-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.skill-tag {
    background: transparent;
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border: 2px solid var(--white);
    border-radius: 4px;
    font-size: clamp(0.85rem, 1.5vw, 0.9rem);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.skill-tag:hover {
    background: var(--white);
    color: var(--marrs-green);
}

/* PROCESS TAB LAYOUT */

.process-timeline {
    margin-top: var(--spacing-xl);
    max-width: 800px;      /* narrower timeline column */
    margin-inline: auto;   /* center the whole timeline block */
}

.process-step {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    position: relative;
    justify-content: center; /* center the two-column grid within the timeline */
}

.process-step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 25px; /* still passes through center of 50px circle */
    top: 60px;
    width: 2px;
    height: calc(100% + var(--spacing-md));
    background: var(--border-white);
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--white);
    color: var(--marrs-green);
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-weight: 700;
    font-size: 1.2rem;
    z-index: 1;
    font-family: var(--font-numeric);
}

.step-content ul {
    margin-left: var(--spacing-md);
    color: var(--white);
}

.step-content li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.7;
}

/* ABOUT TAB */

.about-content {
    max-width: 900px;          /* match hero-ish width, tweak as you like */
    margin-inline: auto;
}

/* Portrait image between heading and text */
.about-figure {
    margin: 0 auto var(--spacing-xl);
    max-width: min(100%, 520px);   /* scales on small screens, nice size on desktop */
}

.about-photo {
    display: block;
    width: 100%;                  /* fill the figure */
    height: auto;
    margin: 0 auto;               /* centering handled by figure */
    border-radius: 8px;
    border: 2px solid var(--white);
}

.about-content h3 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.about-content p {
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

/* CONTACT TAB */

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 400px), 1fr));
    gap: var(--spacing-2xl);
    max-width: 1000px;
    margin-inline: auto;
}

.contact-details,
.contact-form {
    padding: var(--spacing-lg);
    background: var(--transparent-white);
    border: 2px solid var(--white);
    border-radius: 8px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.contact-item {
    margin: var(--spacing-md) 0;
    font-size: clamp(1rem, 2vw, 1.05rem);
}

.contact-item a {
    color: var(--white);
    text-decoration: underline;
    text-decoration-color: var(--border-white);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.contact-item a:hover {
    text-decoration-color: var(--white);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--white);
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.9);
    color: var(--marrs-dark);
    transition: all var(--transition-fast);
    -webkit-appearance: none;
    appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    background: var(--white);
    box-shadow: 0 0 0 4px var(--medium-teal);
}

.form-group:has(input:user-invalid),
.form-group:has(textarea:user-invalid) {
    animation: shake 0.3s;
}

.form-group input:user-invalid,
.form-group textarea:user-invalid {
    border-color: #e74c3c;
}

.form-group input:user-valid:not(:placeholder-shown),
.form-group textarea:user-valid:not(:placeholder-shown) {
    border-color: #27ae60;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
    field-sizing: content;
}

.submit-button {
    background: var(--white);
    color: var(--marrs-green);
    border: none;
    padding: var(--spacing-sm) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 700;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-body);
    width: 100%;
}

.submit-button:hover:not(:disabled) {
    background: var(--off-white);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

/* FIXED: Improved Turnstile widget styling */
.cf-turnstile {
    margin: var(--spacing-md) auto; /* Center the widget */
    display: flex;
    justify-content: center;
    min-height: 70px; /* Slightly taller to ensure visibility */
    width: 100%;
    position: relative;
}

/* Ensure Turnstile iframe is visible */
.cf-turnstile iframe {
    position: relative !important;
    z-index: 1;
}

.notification-info {
    background: #3498db;
}

/* submit button - disabled state */
.submit-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background: var(--marrs-light);
    transform: none;
}

.submit-button:disabled:hover {
    background: var(--marrs-light);
    transform: none;
    box-shadow: none;
}

.footer {
    background: var(--marrs-dark);
    color: var(--white);
    padding: var(--spacing-lg);
    text-align: center;
    margin-top: var(--spacing-2xl);
    border-top: 3px solid var(--white);
}

.footer-content p {
    margin-bottom: var(--spacing-xs);
}

/* only top-level headings in each tab:
   match vertical spacing feel of the hero title */
.tab-content > h2 {
    text-align: center;
    margin-inline: auto;
    margin-top: var(--spacing-sm);   /* like .hero's top padding */
    margin-bottom: var(--spacing-xl); /* like .hero-title's bottom margin */
}

/* keep first paragraph in each tab centered under its heading */
.tab-content > p:first-of-type {
    text-align: center;
    margin-inline: auto;
}

/* Mobile / small container overrides */
@container (max-width: 768px) {
    .nav-brand {
        margin-bottom: var(--spacing-md);
        display: flex;
        align-items: center;
        /* Full-bleed logo row by negating container padding */
        margin-inline: calc(-1 * var(--spacing-sm) + var(--spacing-sm));
    }

    /* keep process-step 2-column and line visible even on small screens */
    .process-step {
        grid-template-columns: auto 1fr;
    }
}

@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;
    }
}

@media print {
    .tab-nav,
    .skip-link,
    .cta-button,
    .submit-button {
        display: none;
    }

    .tab-content {
        display: block !important;
    }

    .card {
        break-inside: avoid;
    }
}

dialog {
    background: var(--white);
    color: var(--marrs-green);
    border: 2px solid var(--marrs-green);
    border-radius: 8px;
    padding: var(--spacing-lg);
    max-width: min(90vw, 500px);
}

dialog::backdrop {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}