/* CSS Variables - Thruline Brand Colors */
:root {
    /* Primary Brand Colors */
    --color-primary: #3B5F6F;
    --color-primary-light: #4C819A;
    --color-primary-dark: #2d4a57;

    /* Accent Colors */
    --color-accent: #E1CA96;
    --color-accent-light: #edd9ad;
    --color-burgundy: #561F37;
    --color-coral: #C83E4D;
    --color-green: #5C7857;
    --color-lavender: #CCC9E7;
    --color-yellow: #DFD357;
    --color-brown: #A27035;

    /* Neutrals */
    --color-white: #ffffff;
    --color-cream: #E1DFD9;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

    --transition: all 0.3s ease;
}

/* Reset & Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-white);
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-primary);
}

h1 {
    font-size: clamp(2rem, 5vw, 3rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

h4 {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
}

.lead {
    font-size: 1.125rem;
    color: var(--color-gray-800);
}

.text-highlight {
    color: var(--color-yellow);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

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

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

.btn-full {
    width: 100%;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--color-primary);
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 1.5rem 2.5rem;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 84px;
    width: auto;
}

.nav-links {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.4rem;
}

.nav-links li {
    position: relative;
}

.nav-links a {
    color: var(--color-white);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    opacity: 0.6;
    padding: 4px 0;
    display: block;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav-links a:hover {
    opacity: 1;
}

.nav-links a.active {
    opacity: 1;
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    right: -12px;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background-color: var(--color-yellow);
    border-radius: 50%;
}

.nav-cta {
    background: none;
    padding: 4px 0;
    border-radius: 0;
    margin-top: 0;
}

.nav-cta:hover {
    background: none;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-white);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    padding: 120px 2rem 150px;
    overflow: hidden;
}

/* Curved crescent shape */
.hero::after {
    content: '';
    position: absolute;
    bottom: -200px;
    left: -10%;
    right: -10%;
    height: 500px;
    background-color: var(--color-yellow);
    border-radius: 50% 50% 0 0 / 100% 100% 0 0;
    z-index: 1;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero h1 {
    color: var(--color-white);
    margin-bottom: 3rem;
    font-weight: 600;
    line-height: 1.2;
    font-size: clamp(2.2rem, 5vw, 3.2rem);
}

.hero .btn {
    margin-bottom: 4rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 1.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-trust {
    font-size: 0.85rem;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
    margin: 0;
}

.hero-decoration {
    position: absolute;
    bottom: 50px;
    left: calc(50% + 5px);
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.hero-logomark {
    width: 180px;
    height: auto;
    opacity: 0.9;
}

.hero-accent-line {
    width: 60px;
    height: 4px;
    background: var(--color-yellow);
    margin: 0 auto 1.5rem;
    border-radius: 2px;
}

/* Decorative shapes - hidden in new design */
.hero-shape {
    display: none;
}

/* About Section */
.about {
    padding: 100px 0;
    background-color: var(--color-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    align-items: start;
}

.about-image {
    position: static;
}

.headshot {
    width: 100%;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    object-fit: cover;
}

.photo-caption {
    text-align: center;
    margin-top: 1rem;
}

.photo-name {
    display: block;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
}

.photo-pronouns {
    display: block;
    font-size: 0.9rem;
    color: var(--color-gray-500);
    margin-top: 0.25rem;
}

.about-content h2 {
    margin-bottom: 1.5rem;
}

.about-content p {
    font-size: 1.125rem;
}

.about-content h3 {
    margin-top: 2rem;
    color: var(--color-primary);
}

.experience-list,
.education-list {
    margin-bottom: 1.5rem;
}

.experience-list li,
.education-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--color-gray-600);
}

.experience-list li::before,
.education-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 8px;
    height: 8px;
    background-color: var(--color-accent);
    border-radius: 50%;
}

.personal-note {
    margin-top: 2rem;
    padding: 1.5rem;
    background-color: var(--color-gray-50);
    border-left: 4px solid var(--color-accent);
    border-radius: 0 8px 8px 0;
    color: var(--color-gray-600);
    font-style: italic;
}

/* Values Section */
.values {
    padding: 100px 0;
    background-color: var(--color-gray-50);
}

.values h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.value-card {
    background-color: var(--color-white);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.value-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.25rem;
    color: var(--color-primary);
    background-color: var(--color-yellow);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.value-icon svg {
    width: 32px;
    height: 32px;
}

.value-card h3 {
    color: var(--color-primary);
    font-size: 1.1rem;
}

.value-card p {
    color: var(--color-gray-500);
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* Services Section */
.services {
    padding: 100px 0;
    background-color: var(--color-white);
}

.services h2 {
    text-align: center;
}

.section-intro {
    text-align: center;
    color: var(--color-gray-500);
    max-width: 600px;
    margin: 0 auto 3rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.service-card {
    background-color: var(--color-white);
    padding: 2.5rem;
    border-radius: 12px;
    position: relative;
    transition: var(--transition);
    border-left: 5px solid var(--color-primary);
    box-shadow: var(--shadow-md);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-left-color: var(--color-yellow);
}

.service-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-white);
    background-color: var(--color-primary);
    border-radius: 50%;
    margin-bottom: 1.25rem;
}

.service-card h3 {
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.service-card > p {
    color: var(--color-gray-600);
    margin-bottom: 1.5rem;
}

.deliverables {
    border-top: 1px solid var(--color-gray-200);
    padding-top: 1rem;
}

.deliverables li {
    position: relative;
    padding-left: 1.25rem;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--color-gray-500);
}

.deliverables li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

/* Get Started Section */
.get-started {
    padding: 100px 0;
    background-color: var(--color-primary);
}

.get-started-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.get-started-content {
    color: var(--color-white);
}

.get-started-content h2 {
    color: var(--color-white);
    margin-bottom: 1.5rem;
}

.get-started-content p {
    color: rgba(255, 255, 255, 0.85);
}

.contact-alternatives {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-accent);
    font-weight: 500;
    transition: var(--transition);
}

.contact-link:hover {
    color: var(--color-accent-light);
}

.contact-link svg {
    width: 20px;
    height: 20px;
}

/* Form Styles */
.get-started-form {
    background-color: var(--color-white);
    padding: 2.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--color-gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 1rem;
    font-family: inherit;
    border: 1px solid var(--color-gray-300);
    border-radius: 4px;
    transition: var(--transition);
    background-color: var(--color-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}

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

.form-success {
    margin-top: 1.5rem;
    padding: 1rem;
    background-color: #d4edda;
    color: #155724;
    border-radius: 4px;
    text-align: center;
    font-weight: 500;
}

/* Client Logos Section */
.clients {
    padding: 60px 0;
    background-color: var(--color-gray-50);
    overflow: hidden;
}

.clients h3 {
    text-align: center;
    color: var(--color-gray-500);
    font-size: 1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 2rem;
}

.logo-marquee {
    width: 100%;
    overflow: hidden;
    position: relative;
}

.logo-marquee::before,
.logo-marquee::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 100px;
    z-index: 2;
    pointer-events: none;
}

.logo-marquee::before {
    left: 0;
    background: linear-gradient(to right, var(--color-gray-50), transparent);
}

.logo-marquee::after {
    right: 0;
    background: linear-gradient(to left, var(--color-gray-50), transparent);
}

.logo-track {
    display: flex;
    align-items: center;
    gap: 4rem;
    animation: scroll 30s linear infinite;
    width: max-content;
}

.logo-track img {
    height: 75px;
    width: auto;
    object-fit: contain;
    opacity: 0.85;
    transition: var(--transition);
}

.logo-track img:hover {
    opacity: 1;
}

/* Individual logo sizes for visual balance */
.logo-track img.logo-ashoka {
    height: 105px;
}

.logo-track img.logo-childrens {
    height: 90px;
}

.logo-track img.logo-ednovate {
    height: 83px;
}

.logo-track img.logo-edvance {
    height: 75px;
}

.logo-track img.logo-eos {
    height: 83px;
}

.logo-track img.logo-fas {
    height: 90px;
}

.logo-track img.logo-giffords {
    height: 57px;
}

.logo-track img.logo-hpn {
    height: 83px;
}

.logo-track img.logo-localprogress {
    height: 63px;
}

.logo-track img.logo-msvotes {
    height: 102px;
}

.logo-track img.logo-mwf {
    height: 75px;
}

.logo-track img.logo-promise {
    height: 90px;
}

.logo-track img.logo-trustees {
    height: 84px;
}

.logo-track img.logo-whoi {
    height: 75px;
}

.logo-track img.logo-alder {
    height: 113px;
}

.logo-track img.logo-nyfc {
    height: 113px;
}

.logo-track img.logo-aspire {
    height: 113px;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* Footer */
.footer {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    color: var(--color-white);
    margin-bottom: 1.25rem;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--color-accent);
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.social-link svg {
    width: 18px;
    height: 18px;
}

.footer-brand {
    text-align: right;
    display: flex;
    justify-content: flex-end;
    align-items: flex-start;
}

.footer-logomark {
    width: 100px;
    height: auto;
    opacity: 0.4;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* Responsive Design */

/* Laptop screens with shorter viewports (MacBook Air 13", 1600x900, etc.) */
@media (min-width: 769px) and (max-height: 920px) {
    .hero {
        min-height: auto;
        padding: 160px 2rem 280px;
    }

    .hero h1 {
        margin-bottom: 2rem;
    }

    .hero .btn {
        margin-bottom: 2rem;
    }

    .hero::after {
        bottom: -150px;
        height: 400px;
    }

    .hero-decoration {
        bottom: 60px;
    }

    .hero-logomark {
        width: 140px;
    }

    .hero-trust {
        font-size: 0.75rem;
    }
}

@media (max-width: 1024px) {
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-brand {
        text-align: left;
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .nav {
        padding: 1rem 1.5rem;
        align-items: center;
    }

    .logo-img {
        height: 50px;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--color-primary);
        flex-direction: column;
        align-items: stretch;
        padding: 2rem;
        gap: 1rem;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        text-align: center;
    }

    .nav-links a.active::after {
        display: none;
    }

    .nav-cta {
        width: 100%;
        text-align: center;
    }

    .hero {
        min-height: auto;
        padding: 140px 1.5rem 180px;
    }

    .hero-content {
        margin-bottom: 80px;
    }

    .hero-decoration {
        bottom: 30px;
    }

    .hero-logomark {
        width: 70px;
    }

    .hero-trust {
        font-size: 0.7rem;
        max-width: 200px;
        text-align: center;
    }

    .hero::after {
        height: 300px;
        bottom: -120px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image {
        position: static;
        max-width: 300px;
        margin: 0 auto;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .get-started-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .values-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-brand {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 100px 1.5rem 60px;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .container {
        padding: 0 16px;
    }

    .about,
    .values,
    .services,
    .get-started {
        padding: 60px 0;
    }

    .get-started-form {
        padding: 1.5rem;
    }

    .service-card {
        padding: 1.5rem;
    }

    .value-card {
        padding: 1.5rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

/* Smooth scrolling offset for fixed header */
section[id] {
    scroll-margin-top: 80px;
}