/* ===== RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', Helvetica, Arial, Lucida, sans-serif;
    color: #666666;
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

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

ul {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Roboto', Helvetica, Arial, Lucida, sans-serif;
    color: #333333;
    font-weight: 700;
}

/* ===== CSS VARIABLES ===== */
:root {
    --teal: #7EBEC5;
    --teal-hover: #5daab2;
    --dark: #1a1a1a;
    --dark-deep: #000000;
    --text-dark: #333333;
    --text-body: #666666;
    --text-light: #ffffff;
    --max-width: 1080px;
}

/* ===== NAVIGATION ===== */
.nav-wrapper {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 99999;
    background-color: #ffffff;
    box-shadow: 0 1px 0 rgba(0,0,0,0.1);
    transition: all 0.4s ease-in-out;
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--max-width);
    width: 80%;
    margin: 0 auto;
    padding: 20px 0;
    transition: padding 0.4s ease;
}

.nav-logo img {
    height: 44px;
    width: auto;
    transition: all 0.4s ease;
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    color: var(--dark);
    font-size: 1.3rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: opacity 0.3s ease;
}

.nav-links a:hover {
    opacity: 0.7;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    z-index: 100;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background-color: var(--dark);
    transition: all 0.3s ease;
}



/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 13px 24px;
    font-family: 'Roboto', Helvetica, Arial, Lucida, sans-serif;
    font-size: 0.94rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    border: 2px solid var(--dark);
    background-color: var(--dark);
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn:hover {
    background-color: transparent;
    color: var(--dark);
}

.btn-outline-white {
    display: inline-block;
    padding: 13px 24px;
    font-family: 'Roboto', Helvetica, Arial, Lucida, sans-serif;
    font-size: 0.94rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    border: 2px solid var(--text-light);
    background-color: transparent;
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-outline-white:hover {
    background-color: rgba(255,255,255,0.15);
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-image: url('../images/hero-home.jpg');
    background-size: cover;
    background-position: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.2);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: var(--max-width);
    width: 80%;
    margin: 0 auto;
    padding: 0;
}

.hero h1 {
    font-size: 68px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    line-height: 1.18;
    color: var(--text-light);
    margin-bottom: 18px;
}

.hero-subtitle {
    font-size: 19px;
    font-weight: 700;
    line-height: 1.55;
    color: rgba(255,255,255,0.9);
    max-width: 640px;
    margin-bottom: 34px;
}

.hero-btn {
    background-color: var(--dark);
    border-color: var(--text-light);
    color: var(--text-light);
    font-size: 0.94rem;
    padding: 11px 24px;
}

.hero-btn:hover {
    background-color: transparent;
    color: var(--text-light);
    border-color: var(--text-light);
}

/* ===== ABOUT / AUSTRALIAN ENVIRONMENTAL SPECIALISTS ===== */
.about {
    background-color: #ffffff;
    padding: 58px 0 72px;
}

.about-inner {
    max-width: var(--max-width);
    width: 80%;
    margin: 0 auto;
    display: flex;
    align-items: flex-start;
    gap: 74px;
}

.about-text {
    flex: 1;
}

.about h2 {
    font-size: 36px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    line-height: 1.3;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.about-subtitle {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.55;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.about-divider {
    width: 60px;
    height: 3px;
    background-color: var(--dark);
    margin: 16px 0 24px;
}

.about-description {
    font-size: 1.02rem;
    line-height: 1.85;
    color: #4c4c4c;
    margin-bottom: 14px;
}

.about-btn {
    margin-top: 12px;
}

.about-image {
    flex: 0 0 470px;
}

.about-image img {
    width: 100%;
    height: auto;
}

/* ===== SERVICES SECTION ===== */
.services {
    position: relative;
    display: flex;
    min-height: 500px;
    background-image: url('../images/section-services.jpg');
    background-size: cover;
    background-position: center bottom;
    overflow: hidden;
}

.services::before {
    content: '';
    position: absolute;
    inset: 0;
    background-color: rgba(255,255,255,0.72);
    pointer-events: none;
}

.services-image {
    position: relative;
    z-index: 1;
    flex: 0 0 50%;
    background-image: url('../images/section-services.jpg');
    background-size: cover;
    background-position: center bottom;
}

.services-content {
    position: relative;
    z-index: 1;
    flex: 0 0 50%;
    padding: 68px 70px 62px 48px;
    background-color: rgba(255,255,255,0.78);
}

.services h2 {
    font-size: 36px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    line-height: 1.3;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.services-divider {
    width: 60px;
    height: 3px;
    background-color: var(--dark);
    margin: 16px 0 24px;
}

.services-intro {
    font-size: 1.02rem;
    font-weight: 700;
    line-height: 1.75;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.services-list {
    margin-bottom: 30px;
}

.services-list li {
    position: relative;
    padding-left: 20px;
    font-size: 1.05rem;
    line-height: 1.95;
    color: #4c4c4c;
}

.services-list li::before {
    content: '\2022';
    position: absolute;
    left: 0;
    color: var(--text-body);
    font-weight: 700;
}

/* ===== PROFESSIONALS / CTA SECTION ===== */
.professionals {
    position: relative;
    padding: 100px 0;
    background-image: url('../images/professionals-bg.jpg');
    background-size: cover;
    background-position: center 35%;
    background-blend-mode: color;
    background-color: rgba(0,0,0,0.18);
}

.professionals::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.34);
    pointer-events: none;
}

.professionals-inner {
    position: relative;
    z-index: 2;
    max-width: var(--max-width);
    width: 80%;
    margin: 0 auto;
    text-align: left;
}

.professionals-logo {
    height: 40px;
    width: auto;
    margin-bottom: 20px;
    filter: brightness(0) invert(1);
}

.professionals h2 {
    font-size: 36px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    line-height: 1.3;
    color: var(--text-light);
    margin-bottom: 16px;
}

.professionals-divider {
    width: 60px;
    height: 3px;
    background-color: #ffffff;
    margin: 16px 0 30px;
}

/* ===== FOOTER ===== */
.footer {
    background-color: #ffffff;
    border-top: 1px solid #e8ece9;
    padding: 50px 0 30px;
}

.footer-inner {
    max-width: var(--max-width);
    width: 80%;
    margin: 0 auto;
    display: flex;
    gap: 40px;
}

.footer-col {
    flex: 1;
}

.footer-col h3 {
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: none;
    letter-spacing: 0;
    color: #2f2f2f;
    margin-bottom: 18px;
}

.footer-col p {
    font-size: 0.98rem;
    line-height: 1.9;
    color: #4a4a4a;
}

.footer-col ul li {
    line-height: 1.95;
}

.footer-col ul li a {
    font-size: 0.98rem;
    color: #4a4a4a;
}

.footer-col ul li a:hover {
    color: var(--teal);
}

.footer-contact a {
    font-size: 0.98rem;
    color: #4a4a4a;
}

.footer-contact a:hover {
    color: var(--teal);
}

/* ===== COPYRIGHT BAR ===== */
.copyright {
    background-color: var(--dark-deep);
    padding: 12px 0;
}

.copyright-inner {
    max-width: var(--max-width);
    width: 80%;
    margin: 0 auto;
    text-align: center;
}

.copyright p {
    font-size: 0.72rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    line-height: 2;
    color: var(--text-light);
}

.copyright a {
    color: var(--text-light);
}

.copyright a:hover {
    opacity: 0.7;
}

/* ===== ANIMATIONS ===== */
[data-animate] {
    opacity: 0;
    transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-animate="fade-up"] {
    transform: translateY(40px);
}

[data-animate="fade-left"] {
    transform: translateX(-40px);
}

[data-animate="fade-right"] {
    transform: translateX(40px);
}

[data-animate="zoom"] {
    transform: scale(0.9);
}

[data-animate].visible {
    opacity: 1;
    transform: translate(0, 0) scale(1);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 980px) {
    .hero h1 {
        font-size: 52px;
    }

    .hero-subtitle {
        font-size: 17px;
    }

    .about-inner {
        flex-direction: column;
    }

    .about-image {
        flex: none;
        width: 100%;
        max-width: 470px;
    }

    .services {
        flex-direction: column;
    }

    .services-image {
        flex: none;
        width: 100%;
        min-height: 300px;
    }

    .services-content {
        flex: none;
        width: 100%;
        padding: 44px 30px;
    }

    .footer-inner {
        flex-direction: column;
    }

    .professionals h2 {
        font-size: 28px;
    }

    .about h2,
    .services h2 {
        font-size: 28px;
    }
}

@media (max-width: 767px) {
    .nav-inner {
        width: 90%;
    }

    .hero-content,
    .about-inner,
    .professionals-inner,
    .footer-inner,
    .copyright-inner {
        width: 90%;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--dark);
        flex-direction: column;
        padding: 20px 0;
        gap: 0;
    }

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

    .nav-links a {
        color: var(--text-light) !important;
        padding: 12px 30px;
        width: 100%;
        display: block;
    }

    .nav-links a:hover {
        background-color: rgba(255,255,255,0.05);
    }

    .hamburger {
        display: flex;
    }

    .hero {
        min-height: 80vh;
    }

    .hero-content {
        width: 90%;
        padding: 0;
    }

    .hero h1 {
        font-size: 42px;
    }

    .hero-subtitle {
        font-size: 16px;
        line-height: 1.5;
    }


}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 34px;
    }

    .hero-subtitle {
        font-size: 15px;
    }

    .about h2,
    .services h2,
    .professionals h2 {
        font-size: 22px;
    }
}