/* =========================================================
   PROJECTS & CASE STUDIES
   Ceylon Waste Management
========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Playfair+Display:wght@600;700&display=swap');


/* =========================================================
   GLOBAL
========================================================= */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Inter", sans-serif;
    background: #f6f9f7;
    color: #26352d;
    line-height: 1.7;
}

img {
    width: 100%;
    display: block;
}

a {
    text-decoration: none;
}

ul {
    list-style: none;
}


/* =========================================================
   HEADER / NAVBAR
========================================================= */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 82px;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    z-index: 9999;
}

.navbar {
    width: 92%;
    max-width: 1350px;
    height: 82px;
    margin: auto;

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


/* Logo */

.logo img {
    width: 145px;
    height: auto;
}


/* Navigation */

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

.nav-links > li {
    position: relative;
}

.nav-links > li > a {
    color: #26352d;
    font-size: 14px;
    font-weight: 600;
    transition: 0.3s ease;
    white-space: nowrap;
}

.nav-links > li > a:hover {
    color: #20a64a;
}


/* Schedule Button */

.nav-btn {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;

    padding: 9px 21px;

    color: #ffffff !important;

    background: linear-gradient(
        135deg,
        #25b94f,
        #16873b
    );

    border-radius: 30px;

    font-size: 13px !important;
    font-weight: 700 !important;

    box-shadow: 0 6px 15px rgba(40, 167, 69, 0.25);

    transition: 0.3s ease;
}

.nav-btn:hover {
    color: #ffffff !important;

    transform: translateY(-2px);

    box-shadow:
        0 10px 22px rgba(40, 167, 69, 0.35);
}


/* =========================================================
   DROPDOWN
========================================================= */

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;

    top: calc(100% + 14px);
    left: 0;

    width: 250px;

    background: #ffffff;

    border-radius: 12px;

    box-shadow:
        0 15px 35px rgba(0, 0, 0, 0.14);

    overflow: hidden;

    opacity: 0;
    visibility: hidden;

    transform: translateY(8px);

    transition:
        opacity 0.3s ease,
        visibility 0.3s ease,
        transform 0.3s ease;

    z-index: 9999;
}


/* Small bridge between nav and dropdown */

.dropdown-menu::before {
    content: "";

    position: absolute;

    top: -10px;
    left: 20px;

    width: 20px;
    height: 20px;

    background: #ffffff;

    transform: rotate(45deg);
}


/* Dropdown links */

.dropdown-menu li {
    position: relative;
    z-index: 2;
}

.dropdown-menu li a {
    display: block;

    padding: 12px 18px;

    color: #37443d;

    font-size: 13px;
    font-weight: 500;

    border-bottom: 1px solid #edf1ee;

    transition: 0.3s ease;
}

.dropdown-menu li:last-child a {
    border-bottom: none;
}

.dropdown-menu li a:hover {
    background: #22c55e;
    color: #ffffff;
    padding-left: 23px;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}


/* =========================================================
   HERO BANNER
========================================================= */
/* =========================================================
   R&D BANNER (GREEN ARROW DESIGN)
========================================================= */

.cwm-banner {
    position: relative;
    width: 100%;
    max-width: 1200px;
    height: 330px;
    margin: 125px auto 50px;
    border-radius: 18px;
    overflow: hidden;
    /* Ensure you have an appropriate background image for R&D here */
    background: url("images/R&D.jpg") center/cover no-repeat;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.banner-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 450px;
    height: 100%;
    padding: 40px 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #fff;
    background: linear-gradient(135deg, #22a647 0%, #46b849 100%);
    /* Creates the right-pointing arrow shape */
    clip-path: polygon(0 0, 80% 0, 100% 50%, 80% 100%, 0 100%);
    z-index: 2;
}

.banner-content h1 {
    font-size: 42px;
    line-height: 1.2;
    font-weight: 800;
    max-width: 320px;
    margin: 0;
}

/* Hide the stray decorative elements if they disrupt the clean arrow design */
.overlay-circle,
.overlay-circle2,
.cwm-banner .fa-recycle,
.about-cwm-content {
    display: none;
}

/* =========================================================
   BANNER RESPONSIVE STYLES
========================================================= */

@media (max-width: 1000px) {
    .cwm-banner { 
        max-width: 92%; 
        height: 300px; 
    }
    .banner-content { 
        width: 400px; 
    }
    .banner-content h1 { 
        font-size: 36px; 
    }
}

@media (max-width: 768px) {
    .cwm-banner { 
        margin-top: 130px; 
        height: 250px; 
    }
    .banner-content { 
        width: 75%; 
        padding: 30px;
        clip-path: polygon(0 0, 85% 0, 100% 50%, 85% 100%, 0 100%);
    }
    .banner-content h1 { 
        font-size: 30px; 
    }
}

@media (max-width: 480px) {
    .cwm-banner { 
        height: 220px; 
    }
    .banner-content { 
        width: 90%; 
        padding: 20px 25px;
        clip-path: polygon(0 0, 90% 0, 100% 50%, 90% 100%, 0 100%);
    }
    .banner-content h1 { 
        font-size: 26px; 
    }
}
/* =========================================================
   MAIN WRAPPER
========================================================= */

.projects-wrapper {
    width: 92%;
    max-width: 1350px;

    margin: 80px auto;

    display: grid;

    grid-template-columns: 270px 1fr;

    gap: 65px;

    align-items: start;
}


/* =========================================================
   SIDEBAR
========================================================= */

.sidebar {
    position: sticky;

    top: 105px;
}


/* Sidebar box */

.sidebar-box {
    background: #ffffff;

    border-radius: 18px;

    padding: 25px;

    box-shadow:
        0 10px 30px rgba(0, 0, 0, 0.07);

    border: 1px solid #e7eee9;
}

.sidebar-box h3 {
    color: #176b35;

    font-size: 19px;

    margin-bottom: 18px;

    font-weight: 800;
}

.sidebar-box ul {
    display: flex;
    flex-direction: column;
}

.sidebar-box li {
    border-bottom: 1px solid #edf1ee;
}

.sidebar-box li:last-child {
    border-bottom: none;
}

.sidebar-box li a {
    display: block;

    padding: 13px 12px;

    color: #536058;

    font-size: 13px;
    font-weight: 600;

    transition: 0.3s ease;
}

.sidebar-box li a:hover {
    color: #20a64a;

    padding-left: 17px;
}


/* Active */

.sidebar-box li.active {
    background: #edf9f1;

    border-left: 4px solid #22c55e;

    border-radius: 6px;
}

.sidebar-box li.active a {
    color: #15803d;

    font-weight: 700;
}


/* Sidebar contact */

.sidebar-contact {
    margin-top: 25px;

    padding: 30px 25px;

    border-radius: 18px;

    background:
        linear-gradient(
            145deg,
            #1c9b45,
            #11652d
        );

    color: #ffffff;

    box-shadow:
        0 12px 30px rgba(22, 117, 52, 0.25);
}

.sidebar-contact span {
    display: block;

    margin-bottom: 10px;

    color: #a8f0bb;

    font-size: 11px;

    font-weight: 800;

    letter-spacing: 1.5px;
}

.sidebar-contact h3 {
    color: #ffffff;

    font-size: 20px;

    line-height: 1.4;

    margin-bottom: 22px;
}

.sidebar-contact a {
    display: inline-block;

    padding: 10px 17px;

    background: #ffffff;

    color: #15803d;

    border-radius: 25px;

    font-size: 12px;

    font-weight: 700;

    transition: 0.3s ease;
}

.sidebar-contact a:hover {
    background: #dff8e7;

    transform: translateY(-2px);
}


/* =========================================================
   CONTENT INTRO
========================================================= */

.projects-content {
    min-width: 0;
}

.section-intro {
    max-width: 900px;

    margin-bottom: 75px;
}

.section-label {
    display: inline-block;

    color: #20a64a;

    font-size: 12px;

    font-weight: 800;

    letter-spacing: 2px;

    text-transform: uppercase;

    margin-bottom: 10px;
}

.section-intro h2,
.impact-content h2 {
    color: #1b4332;

    font-size: clamp(32px, 4vw, 48px);

    line-height: 1.2;

    font-weight: 800;

    margin-bottom: 22px;
}

.section-intro h2 strong,
.impact-content h2 strong {
    color: #20a64a;
}

.section-intro p {
    color: #5b665f;

    font-size: 16px;

    line-height: 1.9;
}


/* =========================================================
   PROJECT HEADING
========================================================= */

.projects-heading {
    margin-bottom: 35px;
}

.projects-heading > span {
    display: block;

    margin-bottom: 8px;

    color: #20a64a;

    font-size: 11px;

    font-weight: 800;

    letter-spacing: 2px;
}

.projects-heading h2 {
    color: #1b4332;

    font-size: 32px;

    line-height: 1.25;

    font-weight: 800;
}

.projects-heading h2 strong {
    color: #20a64a;
}


/* =========================================================
   PROJECT GRID
========================================================= */

.project-grid {
    display: grid;

    grid-template-columns: repeat(2, 1fr);

    gap: 30px;
}


/* Project card */

.project-card {
    position: relative;

    overflow: hidden;

    background: #ffffff;

    border-radius: 18px;

    border: 1px solid #e4ece7;

    box-shadow:
        0 8px 28px rgba(27, 67, 50, 0.07);

    transition:
        transform 0.35s ease,
        box-shadow 0.35s ease,
        border-color 0.35s ease;
}

.project-card:hover {
    transform: translateY(-8px);

    border-color: #b9e4c7;

    box-shadow:
        0 18px 42px rgba(27, 67, 50, 0.13);
}


/* =========================================================
   PROJECT IMAGE
========================================================= */

.project-image {
    position: relative;

    height: 250px;

    overflow: hidden;

    background: #eaf3ed;
}

.project-image::after {
    content: "";

    position: absolute;

    inset: 0;

    background:
        linear-gradient(
            to bottom,
            transparent 40%,
            rgba(5, 55, 28, 0.50)
        );

    opacity: 0;

    transition: 0.4s ease;
}

.project-card:hover .project-image::after {
    opacity: 1;
}

.project-image img {
    width: 100%;
    height: 100%;

    object-fit: cover;

    transition:
        transform 0.6s ease,
        filter 0.4s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.07);

    filter: brightness(0.94);
}


/* Project number */

.project-number {
    position: absolute;

    top: 18px;
    left: 18px;

    z-index: 5;

    width: 48px;
    height: 48px;

    display: flex;
    align-items: center;
    justify-content: center;

    background: rgba(255, 255, 255, 0.94);

    color: #15803d;

    border-radius: 50%;

    font-size: 14px;

    font-weight: 800;

    box-shadow:
        0 5px 15px rgba(0, 0, 0, 0.15);
}


/* =========================================================
   PROJECT BODY
========================================================= */

.project-body {
    padding: 30px;
}

.project-tag {
    display: inline-block;

    margin-bottom: 12px;

    color: #20a64a;

    font-size: 10px;

    font-weight: 800;

    letter-spacing: 1.5px;

    text-transform: uppercase;
}

.project-body h3 {
    color: #1b4332;

    font-size: 23px;

    line-height: 1.3;

    font-weight: 800;

    margin-bottom: 18px;

    transition: 0.3s ease;
}

.project-card:hover .project-body h3 {
    color: #15803d;
}

.project-body h4 {
    color: #15803d;

    font-size: 14px;

    font-weight: 700;

    margin-top: -10px;

    margin-bottom: 15px;
}

.project-body p {
    color: #5e6962;

    font-size: 14px;

    line-height: 1.8;

    margin-bottom: 15px;
}

.project-body p:last-child {
    margin-bottom: 0;
}


/* Green bottom line */

.project-card::before {
    content: "";

    position: absolute;

    left: 0;
    bottom: 0;

    width: 100%;
    height: 4px;

    background:
        linear-gradient(
            90deg,
            #15803d,
            #22c55e,
            #4ade80
        );

    transform: scaleX(0);

    transform-origin: left;

    transition: transform 0.4s ease;

    z-index: 10;
}

.project-card:hover::before {
    transform: scaleX(1);
}


/* =========================================================
   IMPACT SECTION
========================================================= */

.impact-section {
    margin-top: 90px;

    padding: 60px;

    background:
        linear-gradient(
            135deg,
            #edf9f1,
            #f8fcf9
        );

    border-radius: 24px;

    border: 1px solid #dceee2;
}

.impact-content {
    max-width: 850px;

    margin-bottom: 45px;
}

.impact-content p {
    color: #59665e;

    font-size: 15px;

    line-height: 1.9;
}


/* Impact cards */

.impact-cards {
    display: grid;

    grid-template-columns: repeat(4, 1fr);

    gap: 18px;
}

.impact-card {
    background: #ffffff;

    padding: 25px 22px;

    border-radius: 15px;

    border: 1px solid #e2ece5;

    transition: 0.3s ease;
}

.impact-card:hover {
    transform: translateY(-6px);

    box-shadow:
        0 12px 28px rgba(27, 67, 50, 0.10);
}

.impact-icon {
    width: 42px;
    height: 42px;

    display: flex;
    align-items: center;
    justify-content: center;

    margin-bottom: 18px;

    border-radius: 50%;

    background: #dff7e7;

    color: #15803d;

    font-size: 12px;

    font-weight: 800;
}

.impact-card h3 {
    color: #1b4332;

    font-size: 17px;

    margin-bottom: 10px;
}

.impact-card p {
    color: #68736d;

    font-size: 13px;

    line-height: 1.7;
}


/* =========================================================
   FINAL CTA
========================================================= */

.final-cta {
    margin-top: 80px;

    padding: 55px 60px;

    display: flex;

    align-items: center;

    justify-content: space-between;

    gap: 40px;

    border-radius: 22px;

    background:
        linear-gradient(
            135deg,
            #07361d,
            #11652d
        );

    position: relative;

    overflow: hidden;
}


/* Decorative circle */

.final-cta::after {
    content: "";

    position: absolute;

    width: 300px;
    height: 300px;

    right: -120px;
    top: -130px;

    border-radius: 50%;

    border: 1px solid rgba(255, 255, 255, 0.12);
}

.final-cta > div {
    position: relative;

    z-index: 2;
}

.final-cta span {
    display: block;

    color: #62df83;

    font-size: 11px;

    font-weight: 800;

    letter-spacing: 2px;

    margin-bottom: 10px;
}

.final-cta h2 {
    color: #ffffff;

    font-size: 34px;

    line-height: 1.25;

    margin-bottom: 12px;
}

.final-cta h2 strong {
    color: #55dc7b;
}

.final-cta p {
    max-width: 700px;

    color: rgba(255, 255, 255, 0.75);

    font-size: 14px;
}

.final-cta > a {
    position: relative;

    z-index: 3;

    flex-shrink: 0;

    padding: 14px 25px;

    background: #25b94f;

    color: #ffffff;

    border-radius: 30px;

    font-size: 13px;

    font-weight: 700;

    box-shadow:
        0 8px 20px rgba(0, 0, 0, 0.18);

    transition: 0.3s ease;
}

.final-cta > a:hover {
    background: #ffffff;

    color: #15803d;

    transform: translateY(-3px);
}


/* =========================================================
   FOOTER
========================================================= */

.footer {
    margin-top: 100px;

    padding: 70px 0 0;

    background: #102019;

    color: #ffffff;
}

.footer-container {
    width: 92%;
    max-width: 1350px;

    margin: auto;

    display: grid;

    grid-template-columns: 1.5fr 1fr 1fr 1fr;

    gap: 50px;

    padding-bottom: 55px;
}


/* Footer about */

.footer-about img {
    width: 145px;

    margin-bottom: 20px;

    filter: brightness(0) invert(1);
}

.footer-about p {
    max-width: 400px;

    color: rgba(255, 255, 255, 0.65);

    font-size: 13px;

    line-height: 1.8;
}


/* Footer columns */

.footer-column {
    display: flex;

    flex-direction: column;

    align-items: flex-start;
}

.footer-column h3 {
    color: #ffffff;

    font-size: 16px;

    margin-bottom: 20px;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.65);

    font-size: 13px;

    margin-bottom: 11px;

    transition: 0.3s ease;
}

.footer-column a:hover {
    color: #55dc7b;

    padding-left: 4px;
}


/* Footer bottom */

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.10);

    text-align: center;

    padding: 22px 20px;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.50);

    font-size: 12px;
}


/* =========================================================
   TABLET
========================================================= */

@media (max-width: 1100px) {

    .nav-links {
        gap: 20px;
    }

    .nav-links > li > a {
        font-size: 13px;
    }

    .projects-wrapper {
        grid-template-columns: 230px 1fr;

        gap: 40px;
    }

    .project-grid {
        gap: 22px;
    }

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

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


/* =========================================================
   TABLET / SMALL LAPTOP
========================================================= */

@media (max-width: 900px) {

    .header {
        height: auto;
    }

    .navbar {
        min-height: 72px;

        padding: 12px 0;

        flex-wrap: wrap;
    }

    .nav-links {
        gap: 15px;

        flex-wrap: wrap;

        justify-content: center;
    }

    .cwm-banner {
        margin-top: 100px;

        min-height: 540px;
    }

    .projects-wrapper {
        grid-template-columns: 1fr;

        margin-top: 60px;
    }

    .sidebar {
        position: static;

        display: grid;

        grid-template-columns: 1fr 1fr;

        gap: 20px;
    }

    .sidebar-contact {
        margin-top: 0;
    }

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

    .final-cta {
        flex-direction: column;

        align-items: flex-start;
    }

    .footer-container {
        gap: 35px;
    }
}


/* =========================================================
   MOBILE
========================================================= */

@media (max-width: 650px) {

    .navbar {
        width: 90%;

        flex-direction: column;

        gap: 10px;
    }

    .logo img {
        width: 120px;
    }

    .nav-links {
        gap: 9px;

        justify-content: center;
    }

    .nav-links > li > a {
        font-size: 11px;
    }

    .nav-btn {
        padding: 7px 14px;

        font-size: 11px !important;
    }

    .dropdown-menu {
        width: 220px;
    }


    /* Hero */

    .cwm-banner {
        margin-top: 140px;

        min-height: 500px;
    }

    .banner-content {
        padding: 60px 0;
    }

    .banner-label {
        font-size: 11px;
    }

    .banner-content h1 {
        font-size: 42px;

        letter-spacing: -1px;
    }

    .banner-content p {
        font-size: 15px;
    }


    /* Main */

    .projects-wrapper {
        width: 90%;

        margin: 55px auto;
    }


    /* Sidebar */

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


    /* Intro */

    .section-intro {
        margin-bottom: 55px;
    }

    .section-intro h2 {
        font-size: 32px;
    }

    .section-intro p {
        font-size: 14px;
    }


    /* Projects */

    .project-grid {
        grid-template-columns: 1fr;

        gap: 22px;
    }

    .project-image {
        height: 230px;
    }

    .project-body {
        padding: 25px;
    }

    .project-body h3 {
        font-size: 21px;
    }


    /* Impact */

    .impact-section {
        margin-top: 60px;

        padding: 35px 25px;

        border-radius: 18px;
    }

    .impact-content h2 {
        font-size: 31px;
    }

    .impact-cards {
        grid-template-columns: 1fr;
    }


    /* CTA */

    .final-cta {
        margin-top: 60px;

        padding: 40px 25px;

        border-radius: 18px;
    }

    .final-cta h2 {
        font-size: 28px;
    }

    .final-cta p {
        font-size: 13px;
    }


    /* Footer */

    .footer {
        margin-top: 70px;
    }

    .footer-container {
        grid-template-columns: 1fr;

        gap: 35px;

        padding-bottom: 40px;
    }

    .footer-about p {
        max-width: 100%;
    }

    .footer-column {
        align-items: flex-start;
    }
}


/* =========================================================
   VERY SMALL MOBILE
========================================================= */

@media (max-width: 400px) {

    .logo img {
        width: 110px;
    }

    .nav-links {
        gap: 7px;
    }

    .nav-links > li > a {
        font-size: 10px;
    }

    .nav-btn {
        padding: 6px 11px;

        font-size: 10px !important;
    }

    .cwm-banner {
        margin-top: 145px;

        min-height: 460px;
    }

    .banner-content h1 {
        font-size: 34px;
    }

    .banner-content p {
        font-size: 14px;
    }

    .project-image {
        height: 210px;
    }

    .project-body {
        padding: 22px;
    }

    .project-body h3 {
        font-size: 19px;
    }

    .project-body p {
        font-size: 13px;
    }

    .impact-section {
        padding: 28px 20px;
    }

    .final-cta {
        padding: 35px 20px;
    }
}