/* Base Reset & Variables */
:root {
    --color-primary: #1a4d5c;
    --color-primary-dark: #0f3540;
    --color-primary-light: #2a6b7d;
    --color-accent: #e8a54b;
    --color-accent-light: #f5c87a;
    --color-text: #2d3748;
    --color-text-light: #5a6775;
    --color-text-muted: #8896a4;
    --color-bg: #ffffff;
    --color-bg-alt: #f7f9fb;
    --color-bg-dark: #1a2332;
    --color-border: #e2e8f0;
    --color-success: #38a169;
    --color-error: #e53e3e;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --transition: 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 17px;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

a:hover {
    color: var(--color-primary-light);
}

h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text);
}

h1 {
    font-size: clamp(2.2rem, 5vw, 3.2rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.8rem, 4vw, 2.4rem);
    letter-spacing: -0.01em;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
}

ul {
    list-style: none;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.logo-icon {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
}

.logo:hover {
    color: var(--color-primary-dark);
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav a {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-light);
}

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

.nav-cta {
    background: var(--color-primary);
    color: white !important;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
}

.nav-cta:hover {
    background: var(--color-primary-dark);
    color: white !important;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition);
}

/* Hero Section */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--color-text-light);
    margin-bottom: 32px;
    max-width: 480px;
}

.hero-image {
    display: flex;
    justify-content: center;
}

.hero-image img {
    width: 100%;
    max-width: 500px;
    height: auto;
    background: var(--color-border);
    border-radius: var(--radius-lg);
    aspect-ratio: 5/4;
    object-fit: cover;
}

/* Intro Section */
.intro {
    padding: 80px 0;
}

.intro-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.lead {
    font-size: 1.35rem;
    color: var(--color-text);
    font-weight: 400;
    margin-bottom: 1.5rem;
}

.intro-content p:last-child {
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* How We Work */
.how-we-work {
    padding: 100px 0;
    background: var(--color-bg-alt);
}

.how-we-work h2 {
    text-align: center;
    margin-bottom: 60px;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.process-step {
    text-align: center;
    padding: 32px 24px;
    background: var(--color-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

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

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    color: white;
    font-size: 1.2rem;
    font-weight: 600;
    border-radius: 50%;
    margin-bottom: 20px;
}

.process-step h3 {
    margin-bottom: 12px;
    color: var(--color-primary);
}

.process-step p {
    font-size: 15px;
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* Value Proposition */
.value-prop {
    padding: 100px 0;
}

.value-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.value-image {
    width: 100%;
    max-width: 450px;
    height: auto;
    background: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    aspect-ratio: 9/7;
    object-fit: cover;
}

.value-text h2 {
    margin-bottom: 32px;
}

.value-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.value-list li {
    padding-left: 28px;
    position: relative;
    color: var(--color-text-light);
}

.value-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 12px;
    height: 12px;
    background: var(--color-accent);
    border-radius: 50%;
}

.value-list strong {
    color: var(--color-text);
    font-weight: 600;
}

/* What We Buy */
.what-we-buy {
    padding: 100px 0;
    background: var(--color-bg-alt);
}

.what-we-buy h2 {
    text-align: center;
    margin-bottom: 60px;
}

.criteria-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
}

.criteria-card {
    padding: 40px;
    border-radius: var(--radius-md);
    background: var(--color-bg);
    box-shadow: var(--shadow-sm);
}

.criteria-card h3 {
    margin-bottom: 24px;
    font-size: 1.3rem;
}

.criteria-yes h3 {
    color: var(--color-success);
}

.criteria-no h3 {
    color: var(--color-text-muted);
}

.criteria-card ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.criteria-card li {
    padding-left: 24px;
    position: relative;
    font-size: 15px;
    color: var(--color-text-light);
}

.criteria-yes li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: 600;
}

.criteria-no li::before {
    content: '×';
    position: absolute;
    left: 0;
    color: var(--color-text-muted);
    font-weight: 600;
}

.criteria-note {
    text-align: center;
    margin-top: 40px;
    color: var(--color-text-light);
    font-style: italic;
}

/* About Section */
.about {
    padding: 100px 0;
}

.about h2 {
    text-align: center;
}

.about-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    color: var(--color-text-light);
    font-size: 1.05rem;
}

.founders {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--color-border);
}

.founder {
    text-align: center;
}

.founder-name {
    display: block;
    font-weight: 600;
    color: var(--color-text);
    font-size: 1.1rem;
    margin-bottom: 12px;
}

.linkedin-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    min-width: 36px;
    min-height: 36px;
    color: #0a66c2;
    background-color: rgba(10, 102, 194, 0.1);
    border-radius: 50% !important;
    overflow: hidden;
    transition: all var(--transition);
}

.linkedin-link svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.linkedin-link:hover {
    background: #0a66c2;
    color: white;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: var(--color-bg-dark);
    color: white;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-text h2 {
    color: white;
    margin-bottom: 24px;
}

.contact-text p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.1rem;
}

.contact-note {
    font-size: 0.95rem !important;
    color: rgba(255, 255, 255, 0.6) !important;
    margin-top: 32px;
}

.contact-form {
    background: white;
    padding: 40px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-size: 16px;
    font-family: var(--font-sans);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    background: var(--color-bg);
    color: var(--color-text);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 77, 92, 0.1);
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}

.contact-form .btn {
    width: 100%;
    padding: 16px;
    font-size: 17px;
}

/* Footer */
.footer {
    padding: 40px 0;
    background: var(--color-bg-dark);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
}

.footer-tagline {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-subtitle {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-image {
        order: -1;
    }

    .hero-image img {
        max-width: 400px;
    }

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

    .value-content {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
    }

    .value-image {
        margin: 0 auto;
    }

    .value-list li {
        text-align: left;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 16px;
    }

    .header .container {
        height: 64px;
    }

    .nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        border-bottom: 1px solid var(--color-border);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all 0.3s ease;
    }

    .nav-open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

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

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

    .menu-open span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .menu-open span:nth-child(2) {
        opacity: 0;
    }

    .menu-open span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-image img {
        max-width: 280px;
    }

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

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

    .criteria-card {
        padding: 32px;
    }

    .founders {
        flex-direction: column;
        gap: 24px;
    }

    .contact-form {
        padding: 32px 24px;
    }

    .footer-content {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    h1 {
        font-size: 1.9rem;
    }

    h2 {
        font-size: 1.6rem;
    }

    .hero {
        padding: 90px 0 50px;
    }

    .lead {
        font-size: 1.15rem;
    }

    .how-we-work,
    .value-prop,
    .what-we-buy,
    .about,
    .contact {
        padding: 70px 0;
    }
}

/* Image Placeholders - Remove when adding real images */
.hero-image img[src$=".svg"],
.value-image[src$=".svg"] {
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-border) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}