/* AJ Impact Evaluation Consulting - Dark Theme */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700;800&family=Roboto:wght@300;400;500&display=swap');

:root {
    --color-bg: #1a1a1a;
    --color-bg-secondary: #2d2d2d;
    --color-bg-tertiary: #333333;
    --color-text: #ffffff;
    --color-text-muted: #b0b0b0;
    --color-accent: #ff5722;
    --color-accent-hover: #e64a19;
    --color-border: #404040;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Roboto', sans-serif;
    --container-width: 85%;
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--color-text);
}
h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; margin-bottom: 1.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.25rem; }

p { margin-bottom: 1rem; color: var(--color-text-muted); }
a { color: var(--color-text); text-decoration: none; transition: var(--transition-fast); }
a:hover { color: var(--color-accent); }
img { max-width: 100%; display: block; }

/* Layout */
.container { width: var(--container-width); max-width: 1400px; margin: 0 auto; padding: 0 1.5rem; }
section { padding: 6rem 0; }

.grid { display: grid; gap: 2rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 992px) {
    .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    section { padding: 4rem 0; }
}
@media (max-width: 480px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition-medium);
    border: none;
    font-size: 0.9rem;
    font-family: var(--font-heading);
}
.btn-primary { background-color: var(--color-accent); color: white; }
.btn-primary:hover { background-color: var(--color-accent-hover); transform: translateY(-2px); color: white; }
.btn-outline { background-color: transparent; border: 2px solid var(--color-text); color: var(--color-text); }
.btn-outline:hover { background-color: var(--color-text); color: var(--color-bg); }

/* Navbar */
.navbar {
    position: fixed;
    top: 0; left: 0; width: 100%;
    z-index: 1000;
    background-color: rgba(26,26,26,0.97);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}
.navbar .container { display: flex; justify-content: space-between; align-items: center; padding-top: 0.85rem; padding-bottom: 0.85rem; flex-wrap: nowrap; gap: 1rem; }
.logo { display: flex; align-items: center; text-decoration: none; }
.logo img { height: 44px; width: auto; }

/* Hamburger toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    z-index: 1001;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: all 0.3s ease;
    transform-origin: center;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Nav links */
.nav-links {
    display: flex;
    flex: 1;
    justify-content: space-evenly;
    list-style: none;
    align-items: center;
    gap: 0;
    margin-left: 2rem;
}
.nav-links a {
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-muted);
    padding-bottom: 2px;
    border-bottom: 2px solid transparent;
    transition: var(--transition-fast);
    white-space: nowrap;
    text-decoration: none;
}
.nav-links a:hover, .nav-links a.active { color: var(--color-accent); border-bottom-color: var(--color-accent); }

/* Dropdown */
.has-dropdown { position: relative; }
.has-dropdown > a::after { content: ' ▾'; font-size: 0.65rem; }
.dropdown-menu { display: none; position: absolute; top: calc(100% + 0.75rem); left: 50%; transform: translateX(-50%); background-color: #1a1a1a; border: 1px solid var(--color-border); border-radius: 6px; padding: 0.5rem 0; min-width: 175px; z-index: 9999; box-shadow: 0 8px 24px rgba(0,0,0,0.5); list-style: none; }
.dropdown-menu li a { display: block; padding: 0.6rem 1.2rem; color: var(--color-text-muted); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.4px; border-bottom: none !important; white-space: nowrap; }
.dropdown-menu li a:hover { color: var(--color-accent); background-color: var(--color-bg-secondary); }
.has-dropdown:hover .dropdown-menu { display: block; }

/* Collapsed nav — mobile & hamburger */
@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-links {
        display: none;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        width: 100%;
        padding: 0.5rem 0 1rem;
        border-top: 1px solid var(--color-border);
        margin-top: 0.5rem;
    }
    .nav-links.nav-open { display: flex; }
    .nav-links > li { width: 100%; }
    .nav-links > li > a { display: block; padding: 0.65rem 0; width: 100%; border-bottom: none; }
    .has-dropdown > a::after { content: ' ▾'; }
    .has-dropdown .dropdown-menu { position: static; transform: none; box-shadow: none; border: none; border-left: 2px solid var(--color-accent); border-radius: 0; padding: 0; min-width: unset; display: none; background: transparent; margin-left: 1rem; }
    .has-dropdown.drop-open .dropdown-menu { display: block; }
    .dropdown-menu li a { padding: 0.5rem 0.75rem; font-size: 0.82rem; }
}

/* Hero */
.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-image: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1454165804606-c3d57bc86b40?auto=format&fit=crop&w=1950&q=80');
    background-size: cover;
    background-position: center;
    padding-top: 80px;
    position: relative;
}
.hero::after { content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 4px; background: var(--color-accent); }
.hero-content { max-width: 800px; }
.hero h1 { color: var(--color-accent); margin-bottom: 1.5rem; }
.hero .tagline { font-size: 1.4rem; color: var(--color-text); margin-bottom: 1.5rem; font-weight: 300; }
.hero-sub { min-height: 50vh; }

/* Cards */
.card {
    background-color: var(--color-bg-secondary);
    padding: 2rem;
    border-radius: 8px;
    transition: var(--transition-medium);
    border: 1px solid transparent;
}
.card:hover { transform: translateY(-5px); border-color: var(--color-accent); box-shadow: 0 10px 30px rgba(0,0,0,0.3); }
.card h3 { color: var(--color-text); font-size: 1.4rem; margin-bottom: 1rem; position: relative; padding-bottom: 1rem; }
.card h3::after { content: ''; position: absolute; bottom: 0; left: 0; width: 40px; height: 2px; background-color: var(--color-accent); }

/* Trust Bar */
.trust-bar { background-color: var(--color-bg-secondary); padding: 2rem 0; border-bottom: 1px solid var(--color-border); }
.trust-stats { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 2rem; text-align: center; }
.stat-item strong { display: block; font-size: 2rem; color: var(--color-accent); font-family: var(--font-heading); }
.stat-item span { font-size: 0.9rem; text-transform: uppercase; letter-spacing: 1px; color: var(--color-text-muted); }

/* Section Headers */
.section-header { text-align: center; max-width: 700px; margin: 0 auto 3rem; }
.section-header h2 { color: var(--color-accent); }

/* Footer */
footer { background-color: #000; padding: 4rem 0 2rem; border-top: 1px solid var(--color-border); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 3rem; }
@media (max-width: 992px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 576px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-col h4 { color: var(--color-text); margin-bottom: 1.5rem; font-size: 1rem; }
.footer-col p { color: var(--color-text-muted); line-height: 1.7; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 0.8rem; }
.footer-col ul li a { color: var(--color-text-muted); }
.footer-col ul li a:hover { color: var(--color-accent); }
.copyright { text-align: center; padding-top: 2rem; border-top: 1px solid var(--color-bg-secondary); color: var(--color-text-muted); font-size: 0.9rem; }

/* Utilities */
.text-center { text-align: center; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.text-accent { color: var(--color-accent); }
.bg-secondary { background-color: var(--color-bg-secondary); }