/* Trade-Link Co. — Professional Static Website Styles */

/* Reset and Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    line-height: 1.6;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #2c2c2c;
    background-color: #ffffff;
    margin: 0;
    padding: 0;
}

/* Content Container */
.container {
    max-width: 1150px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Typography */
h1 {
    font-size: 2.5rem;
    font-weight: 400;
    line-height: 1.3;
    margin-bottom: 1.5rem;
    color: #1a1a1a;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 1.875rem;
    font-weight: 400;
    line-height: 1.4;
    margin-top: 0;
    margin-bottom: 2.5rem;
    color: #1a1a1a;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.25rem;
    font-weight: 500;
    line-height: 1.5;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

p {
    margin-bottom: 1.75rem;
    line-height: 1.75;
}

ul, ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

li {
    margin-bottom: 0.75rem;
    line-height: 1.7;
}

/* Header */
header {
    border-bottom: 1px solid #e5e5e5;
    padding: 2.5rem 0;
    margin-bottom: 0;
    position: sticky;
    top: 0;
    width: 100%;
    background-color: #ffffff;
    z-index: 1000;
    transition: box-shadow 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
    left: 0;
    right: 0;
}

.header-container {
    max-width: 1150px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 400;
    color: #1a1a1a;
    text-decoration: none;
    letter-spacing: 0.02em;
    display: inline-block;
}

.logo:hover {
    color: #2c2c2c;
}

.logo-img {
    height: 40px;
    width: auto;
    display: block;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.lang-switch-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 2rem;
}

nav li {
    margin: 0;
}

nav a {
    color: #4a4a4a;
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

nav a:hover {
    color: #1a1a1a;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 28px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.hamburger-line {
    width: 100%;
    height: 2px;
    background-color: #1a1a1a;
    border-radius: 2px;
    transition: all 0.3s ease;
    transform-origin: center;
}

.hamburger[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* Mobile Navigation */
.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background-color: #ffffff;
    box-shadow: -2px 0 8px rgba(0, 0, 0, 0.1);
    z-index: 999;
    transition: right 0.3s ease;
    padding: 5rem 2rem 2rem;
    overflow-y: auto;
}

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

.mobile-nav ul {
    flex-direction: column;
    gap: 0;
    align-items: flex-start;
}

.mobile-nav li {
    width: 100%;
    border-bottom: 1px solid #e5e5e5;
}

.mobile-nav a {
    display: block;
    padding: 1.25rem 0;
    font-size: 1.1rem;
    color: #1a1a1a;
}

.mobile-nav a:hover {
    color: #4a4a4a;
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.mobile-nav-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.lang-switch {
    font-size: 0.9rem;
    color: #6a6a6a;
    text-decoration: none;
    margin-left: 1rem;
}

.lang-switch:hover {
    color: #1a1a1a;
}

.lang-switch.active {
    color: #1a1a1a;
    font-weight: 500;
}

/* Main Content */
main {
    min-height: 60vh;
    padding-bottom: 6rem;
}

/* Section Styling */
section {
    scroll-margin-top: 8rem;
}

.page-section {
    padding: 7rem 0;
}

.page-section .container {
    max-width: 1150px;
}

.page-section-alt {
    background-color: #fafafa;
    padding: 7rem 0;
    margin: 0;
    width: 100%;
}

.page-section-alt .section-content {
    max-width: 1150px;
    margin: 0 auto;
    padding: 0 2rem;
}

.hero {
    padding: 8rem 0 10rem 0;
    margin-bottom: 0;
    position: relative;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.85);
    z-index: 1;
}

.hero .container {
    max-width: 1150px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
}

.hero h1 {
    margin-bottom: 1.5rem;
}

.subheadline {
    font-size: 1.2rem;
    color: #4a4a4a;
    margin-bottom: 0;
    line-height: 1.7;
    font-weight: 300;
}

.content-section {
    margin-bottom: 0;
}

.content-section p {
    max-width: 65ch;
}

/* Section Separators */
.section-separator {
    height: 1px;
    background-color: #e5e5e5;
    margin: 0;
    border: none;
    width: 100%;
    opacity: 0.5;
}

/* Services List */
.services-list {
    list-style: none;
    padding: 0;
    margin: 2rem 0;
}

.services-list li {
    margin-bottom: 1.5rem;
    padding-left: 0;
}

.services-list h3 {
    margin-top: 0;
    margin-bottom: 0.75rem;
}

.services-list ul {
    margin-top: 0.5rem;
    margin-bottom: 0;
}

/* Contact Info */
.contact-info {
    margin-top: 2rem;
}

.contact-info p {
    margin-bottom: 0.5rem;
}

.contact-info a {
    color: #1a1a1a;
    text-decoration: underline;
    text-decoration-color: #c0c0c0;
    text-underline-offset: 3px;
}

.contact-info a:hover {
    text-decoration-color: #1a1a1a;
}

.address {
    margin-top: 1.5rem;
    line-height: 1.8;
}

.registration-info {
    margin-top: 1.5rem;
    line-height: 1.8;
}

/* Footer */
footer {
    border-top: 1px solid #e5e5e5;
    padding: 3rem 0;
    margin-top: 6rem;
    font-size: 0.875rem;
    color: #6a6a6a;
    text-align: center;
}

footer .container {
    max-width: 1150px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Images */
figure {
    margin: 5rem auto;
    padding: 0;
    text-align: center;
    max-width: 1150px;
    width: calc(100% - 4rem);
    display: block;
}

figure img {
    max-width: 100%;
    height: auto;
    display: block;
    width: 100%;
    object-fit: cover;
    filter: grayscale(0.1);
}

figcaption {
    margin-top: 1.25rem;
    font-size: 0.875rem;
    color: #6a6a6a;
    font-style: italic;
    text-align: left;
    padding: 0;
    max-width: 1150px;
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding: 0 1.5rem;
    }
    
    header {
        margin-left: -1.5rem;
        margin-right: -1.5rem;
        padding-left: 1.5rem;
        padding-right: 1.5rem;
        width: calc(100% + 3rem);
    }

    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    header {
        padding: 1.5rem 0;
    }

    .header-container {
        flex-direction: row;
        align-items: center;
        gap: 0;
        justify-content: space-between;
    }

    .desktop-nav {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .mobile-nav {
        display: block;
    }

    .mobile-nav-overlay {
        display: block;
    }

    .lang-switch {
        margin-left: 0;
        margin-top: 0;
    }

    .page-section {
        padding: 4rem 0;
    }

    .page-section-alt {
        padding: 4rem 0;
    }

    .hero {
        padding: 4rem 0 6rem 0;
    }

    .page-section-alt .section-content {
        padding: 0 1.5rem;
    }

    figure {
        width: calc(100% - 3rem);
    }

    .hero {
        padding: 2rem 0 4rem 0;
    }

    section {
        scroll-margin-top: 10rem;
    }
    
    header {
        padding: 1.5rem 0;
    }
}