/* Apotentia LLC - Professional Minimalist Design */

/* Import Inter font from Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

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

:root {
    --black: #000000;
    --white: #ffffff;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
    color: var(--gray-600);
}

a {
    color: var(--gray-900);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--gray-600);
    text-decoration: underline;
    text-underline-offset: 0.2em;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 6rem 0;
}

.alt-bg {
    background-color: var(--gray-100);
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: var(--white);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 400;
    letter-spacing: -0.01em;
    color: var(--black);
    text-decoration: none;
    transition: opacity 0.2s ease;
    display: inline-flex;
    align-items: center;
}

.logo:hover {
    opacity: 0.7;
    color: var(--black);
}

.logo-text {
    display: inline;
}

.logo-cursor {
    display: inline-block;
    color: var(--black);
    font-weight: 400;
    -webkit-animation: blink 1s step-end infinite;
    -moz-animation: blink 1s step-end infinite;
    -o-animation: blink 1s step-end infinite;
    animation: blink 1s step-end infinite;
}

@-webkit-keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

@-moz-keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

@-o-keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--gray-700);
    position: relative;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.nav-links a:hover {
    color: var(--black);
    background-color: var(--gray-100);
    transform: translateY(-1px);
}

.nav-links a.active {
    color: var(--black);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -1.5rem;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--black);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background-color: var(--black);
    transition: all 0.3s ease;
}

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

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Hero Section */
.hero {
    margin-top: 80px;
    padding: 8rem 2rem 6rem;
    text-align: center;
    background-color: var(--black);
    color: var(--white);
}

.hero h1 {
    font-size: 4.5rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.tagline {
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--gray-300);
    letter-spacing: 0.02em;
}

/* Mission Grid */
.mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.mission-item {
    padding: 2rem;
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    transition: border-color 0.2s ease;
}

.mission-item:hover {
    border-color: var(--gray-400);
}

.mission-item h3 {
    color: var(--black);
    margin-bottom: 0.75rem;
}

/* Values Section */
.values-list {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    margin-top: 3rem;
}

.value {
    padding: 2rem 0;
    border-bottom: 1px solid var(--gray-200);
}

.value:last-child {
    border-bottom: none;
}

.value h3 {
    color: var(--black);
    margin-bottom: 0.5rem;
}

/* Buttons - Accessible Touch Targets */
.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    min-height: 44px;
    min-width: 44px;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--gray-800);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--black);
    border: 2px solid var(--black);
}

.btn-secondary:hover {
    background-color: var(--gray-100);
}

/* Footer */
footer {
    background-color: var(--black);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--gray-700);
}

.footer-section h4 {
    color: var(--white);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

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

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--white);
}

.footer-section p {
    color: var(--gray-400);
    font-size: 0.9rem;
    line-height: 1.6;
}

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

.footer-bottom p {
    color: var(--gray-400);
    font-size: 0.9rem;
}

/* Responsive Design */

/* Tablet breakpoint - show hamburger menu earlier to prevent overlap */
@media (max-width: 992px) {
    /* Show hamburger menu */
    .hamburger {
        display: flex;
    }

    /* Hide nav links by default on tablet/mobile */
    .nav-links {
        position: fixed;
        top: 69px;
        right: -100%;
        width: 280px;
        height: calc(100vh - 69px);
        background-color: var(--white);
        flex-direction: column;
        gap: 0;
        padding: 2rem 0;
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        overflow-y: auto;
        z-index: 1000;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: 1rem 2rem;
        border-radius: 0;
        width: 100%;
    }

    .nav-links a:hover {
        background-color: var(--gray-100);
        transform: none;
    }

    .nav-links a.active::after {
        bottom: 0;
        left: 0;
        width: 3px;
        height: 100%;
        right: auto;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .hero h1 {
        font-size: 3rem;
    }

    nav {
        padding: 1rem 2rem;
    }

    .section {
        padding: 4rem 0;
    }

    .mission-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .btn-primary,
    .btn-secondary {
        padding: 1rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .nav-links {
        font-size: 0.85rem;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        padding: 1.25rem 1rem;
        justify-content: center;
    }

    .hero {
        padding: 6rem 1rem 4rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .tagline {
        font-size: 1rem;
    }
}