:root {
            --lifed-green: #2E8B57;
            --lifed-light: #E6F4EA;
            --lifed-dark: #1C3C2E;
            --lifed-teal: #20B2AA;
        }

        body {
            font-family: 'Poppins', sans-serif;
            color: var(--lifed-dark);
        }

        /* Hero Section */
        .hero {
            /* background:  url('https://images.unsplash.com/photo-1501785888041-af3ef285b470?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat; */
            background: url('./assets/img/sustainability.jpg') center/cover no-repeat;
            color: #fff;
            /* padding: 120px 0; */
            text-align: center;
        }

        .hero::before{
            content: "";
            position: absolute;
            inset: 0; /* shorthand for top, right, bottom, left = 0 */
            /* background: rgba(0, 0, 0, 0.5);  */
            z-index: 1;
        }
        .hero h1 {
            font-size: 3rem;
            font-weight: 700;text-align: center; 
        }

        .hero p {
            font-size: 1.2rem;
            margin-top: 1rem;
        }

        .hero .btn {
            background-color: var(--lifed-teal);
            border: none;
            padding: 12px 30px;
            font-weight: 600;
            border-radius: 30px;
            transition: 0.3s;
        }

        .hero .btn:hover {
            background-color: var(--lifed-green);
            transform: translateY(-3px);
        }

        .philosophy-section {
            background: var(--lifed-light);
            padding-top: 100px;
            padding-bottom: 100px;
            position: relative;
            }

            .philosophy-section::before {
            content: "";
            position: absolute;
            top: -40px;
            left: 0;
            width: 100%;
            height: 100px;
            /* background: linear-gradient(to right, var(--lifed-green), var(--lifed-teal)); */
            border-radius: 0 0 50% 50% / 0 0 10% 10%;
            z-index: 0;
            }

            .philosophy-section .container {
            position: relative;
            z-index: 2;
            }

            .philosophy-image img {
            transition: transform 0.6s ease;
            }

            .philosophy-image:hover img {
            transform: scale(1.05);
            }

            .philosophy-section h6 {
            letter-spacing: 1px;
            color: var(--lifed-green);
            }

        .earth-unique-section {
            /* background: linear-gradient(180deg, #f8fcf9 0%, #e7f5ec 100%); */
            background: 
              url('../images/sustain-2.jpg')
              center/cover no-repeat;
                background-attachment: fixed;
            position: relative;
            overflow: hidden;
            }

            .earth-bg-text {
            position: absolute;
            top: 10%;
            left: 50%;
            transform: translateX(-50%);
            font-size: 14rem;
            font-weight: 900;
            color: rgba(46, 139, 87, 0.06);
            letter-spacing: 1rem;
            z-index: 0;
            user-select: none;
            pointer-events: none;
            }

            .earth-item {
            background: #ffffff;
            border-radius: 20px;
            padding: 40px 25px 30px;
            box-shadow: 0 10px 35px rgba(0, 0, 0, 0.05);
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
            z-index: 1;
            width: 400px;
            }

            .earth-item::before {
            content: "";
            position: absolute;
            top: -100%;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(32, 178, 170, 0.2), rgba(46, 139, 87, 0.2));
            transition: top 0.4s ease;
            z-index: -1;
            }

            .earth-item:hover::before {
            top: 0;
            }

            .earth-item:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
            }

            .earth-letter {
            position: absolute;
            top: -30px;
            left: -20px;
            font-size: 8rem;
            font-weight: 900;
            color:rgb(160 228 197);
            line-height: 1;
            z-index: 0;
            user-select: none;
            }

            .earth-content {
            position: relative;
            z-index: 2;
            }

            .earth-content h4 {
            font-weight: 700;
            color: var(--lifed-dark, #113528);
            }

            .earth-content p {
            font-size: 0.97rem;
            color: #5c6f65;
            margin-top: 10px;
            }

            .earth-gradient {
            position: absolute;
            bottom: -150px;
            left: -100px;
            width: 300%;
            height: 300px;
            background: radial-gradient(circle at bottom left, rgba(46, 139, 87, 0.15), transparent 70%);
            z-index: 0;
            transform: rotate(-4deg);
            }

            @media (max-width: 992px) {
            .earth-bg-text {
                font-size: 6rem;
                top: 5%;
            }
            .earth-letter {
                font-size: 6rem;
                top: -20px;
                left: -10px;
            }
            }

        .commitments-section {
                background: linear-gradient(180deg, rgba(230, 244, 234, 0.9), rgba(255, 255, 255, 1)),
                            url('https://images.unsplash.com/photo-1501785888041-af3ef285b470?auto=format&fit=crop&w=1600&q=80')
                            center/cover no-repeat;
                background-attachment: fixed;
                position: relative;
                overflow: hidden;
                }

                .commitments-section .text-center h2 {
                color: var(--lifed-dark, #113528);
                }

                .timeline {
                position: relative;
                max-width: 800px;
                margin: 0 auto;
                padding-top: 20px;
                }

                .timeline::before {
                content: "";
                position: absolute;
                left: 50%;
                top: 0;
                transform: translateX(-50%);
                width: 4px;
                height: 100%;
                background: linear-gradient(to bottom, var(--lifed-green, #2E8B57), var(--lifed-teal, #20B2AA));
                border-radius: 10px;
                }

                .timeline-item {
                position: relative;
                margin-bottom: 80px;
                display: flex;
                align-items: center;
                }

                .timeline-item:nth-child(even) {
                flex-direction: row-reverse;
                }

                .timeline-year {
                background: linear-gradient(135deg, var(--lifed-green, #2E8B57), var(--lifed-teal, #20B2AA));
                color: #fff;
                font-weight: 700;
                font-size: 1.8rem;
                border-radius: 50%;
                width: 100px;
                height: 100px;
                display: flex;
                align-items: center;
                justify-content: center;
                margin: 0 30px;
                box-shadow: 0 8px 25px rgba(46, 139, 87, 0.25);
                transition: all 0.4s ease;
                }

                .timeline-content {
                background: rgba(255, 255, 255, 0.9);
                border-radius: 16px;
                padding: 25px;
                box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
                flex: 1;
                transition: all 0.3s ease;
                }

                .timeline-content h5 {
                font-weight: 600;
                color: var(--lifed-dark, #113528);
                }

                .timeline-content p {
                color: #5c6f65;
                font-size: 0.95rem;
                margin-top: 5px;
                }

                .timeline-item:hover .timeline-year {
                transform: scale(1.1);
                box-shadow: 0 0 25px rgba(32, 178, 170, 0.4);
                }

                .timeline-item:hover .timeline-content {
                transform: translateY(-5px);
                }

                /* decorative blur overlay */
                .commitments-overlay {
                position: absolute;
                bottom: -200px;
                left: -100px;
                width: 300%;
                height: 400px;
                background: radial-gradient(circle at bottom left, rgb(41 152 114), transparent 70%);
                transform: rotate(-4deg);
                z-index: 0;
                }

                @media (max-width: 768px) {
                .timeline::before {
                    left: 20px;
                }

                .timeline-item {
                    flex-direction: column;
                    align-items: flex-start;
                }

                .timeline-item:nth-child(even) {
                    flex-direction: column;
                }

                .timeline-year {
                    width: 80px;
                    height: 80px;
                    font-size: 1.4rem;
                    margin: 0 0 15px 10px;
                }

                .timeline-content {
                    width: 100%;
                }
                }
        .practice-ordered-section {
            background: linear-gradient(180deg, rgba(248,252,249,0.98), rgba(233,246,238,0.98));
            position: relative;
            overflow: visible;
            padding-bottom: 125px !important;
            }

            /* Path container */
            .path-wrap {
            position: relative;
            width: 100%;
            max-width: 1180px;
            height: 720px;
            margin: 30px auto 0;
            }

            /* SVG background/path */
            .winding-path {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
            pointer-events: none;
            }

            /* Generic node style */
            .node {
            position: absolute;
            width: 360px;
            display: flex;
            gap: 18px;
            align-items: flex-start;
            z-index: 2;
            transition: transform .35s ease, box-shadow .35s ease;
            }
            .node:hover { transform: translateY(-8px); }

            /* numbered circle */
            .node-circle {
            min-width: 66px;
            min-height: 66px;
            border-radius: 50%;
            background: linear-gradient(135deg,#2E8B57,#20B2AA);
            color: white;
            font-weight: 700;
            display:flex;
            align-items:center;
            justify-content:center;
            font-size:1.25rem;
            box-shadow: 0 10px 30px rgba(32,178,170,0.18);
            flex-shrink: 0;
            }

            /* card with content */
            .node-card {
            background: rgba(255,255,255,0.98);
            border-radius: 14px;
            padding: 18px 16px;
            box-shadow: 0 8px 30px rgba(17,53,40,0.06);
            color: #244837;
            }
            .node-card h5 { margin-bottom: 6px; font-weight:700; color: #113528; }
            .node-card p { margin-bottom: 8px; color: #546b5f; font-size:0.96rem; }
            .node-result { color: var(--lifed-green,#2E8B57); font-weight:600; font-size:0.94rem; }

            /* Precise node positions (desktop) - strictly ordered left->right->left */
            .node.n1 { top: 30px; left: 40px; }         /* REFUSE (top-left) */
            .node.n2 { top: 180px; left: calc(50% - 180px); } /* REDUCE (center-left) */
            .node.n3 { top: 330px; left: calc(100% - 400px); }/* REUSE (right) */
            .node.n4 { top: 480px; left: calc(50% - 180px); } /* RECYCLE (center-left) */
            .node.n5 { top: 600px; left: 40px; }        /* ROT (bottom-left) */

            /* Responsiveness: tablets */
            @media (max-width: 1100px) {
            .path-wrap { height: 900px; }
            .node { width: 320px; gap:14px; }
            .node.n2, .node.n4 { left: calc(50% - 160px); }
            .node.n3 { left: calc(100% - 340px); }
            }

            /* Mobile: stack nodes vertically in correct order with path hidden for clarity */
            @media (max-width: 768px) {
            .path-wrap { height: auto; padding: 10px 0 30px; }
            .winding-path { display: none; }
            .node {
                position: static;
                width: 100%;
                max-width: 720px;
                margin: 14px auto;
                flex-direction: row;
                align-items: center;
            }
            .node-card { padding: 14px; }
            .node-circle { min-width:56px; min-height:56px; font-size:1rem; }
            }

            /* Focus styles for accessibility */
            .node-circle:focus,
            .node-card:focus-within {
            outline: 3px solid rgba(46,139,87,0.14);
            outline-offset: 4px;
            }

            /* CTA style */
            .practice-ordered-section .btn-outline-success {
            border-width: 2px;
            color: var(--lifed-dark,#113528);
            border-color: rgba(46,139,87,0.22);
            }
            .practice-ordered-section .btn-outline-success:hover {
            background: linear-gradient(90deg,#2E8B57,#20B2AA);
            color: #fff;
            border-color: transparent;
            }
        .invitation-flow-section {
            position: relative;
            color: #fff;
            padding: 100px 0;
            background: url('../images/sus1.jpg')
                        center/cover no-repeat;
            background-attachment: fixed;
            overflow: hidden;
            }

            /* Overlay gradients */
            .invitation-bg {
            position: absolute;
            inset: 0;
            background: rgba(0, 0, 0, 0.45);
            z-index: 1;
            }

            .invitation-gradient {
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at bottom left, rgba(46, 139, 87, 0.45), transparent 60%),
                        radial-gradient(circle at top right, rgba(32, 178, 170, 0.35), transparent 60%);
            z-index: 2;
            }

            /* Flow container */
            .invitation-steps {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
            z-index: 3;
            }

            /* Connecting line */
            .flow-line {
            position: absolute;
            top: 180px;
            left: 50%;
            transform: translateX(-50%);
            width: 6px;
            height: 70%;
            background: linear-gradient(180deg, #20B2AA, #2E8B57);
            border-radius: 4px;
            z-index: 2;
            opacity: 0.6;
            }

            /* Each Step */
            .flow-step {
            position: relative;
            display: flex;
            align-items: flex-start;
            gap: 25px;
            background: rgb(74 120 83);
            /* backdrop-filter: blur(12px); */
            opacity: 75%;
            border-radius: 16px;
            padding: 30px 25px;
            margin-bottom: 60px;
            box-shadow: 0 10px 35px rgba(0, 0, 0, 0.15);
            z-index: 3;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            }
            .flow-step:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
            }

            /* Step icons */
            .flow-icon {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            flex-shrink: 0;
            background: linear-gradient(135deg, rgba(46,139,87,0.8), rgba(32,178,170,0.8));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: #fff;
            position: relative;
            box-shadow: 0 10px 30px rgba(46,139,87,0.3);
            }

            /* Content */
            .flow-content h4 {
            color: #c0f3d3;
            margin-bottom: 8px;
            }
            .flow-content p {
            color: #e4f7ec;
            margin-bottom: 12px;
            font-size: 0.98rem;
            }
            .flow-content ul {
            list-style: none;
            padding: 0;
            margin: 0;
            }
            .flow-content li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 6px;
            color: #f0fdf4;
            font-size: 0.95rem;
            }
            .flow-content li i {
            color: #9df7ba;
            }

            /* Responsive adjustments */
            @media (max-width: 992px) {
            .flow-step { flex-direction: column; text-align: center; }
            .flow-icon { margin: 0 auto 15px; }
            .flow-line { display: none; }
            }

        /* SECTION BACKGROUND — DESK */
            .truth-letterpad {
            position: relative;
            background: url('../images/sustain-4.jpg')
                        center/cover no-repeat;
            background-attachment: fixed;
            overflow: hidden;
            min-height: 100vh;
            }

            /* Desk overlay */
            .desk-bg {
            position: absolute;
            inset: 0;
            background: rgba(0,0,0,0.3);
            z-index: 1;
            }

            /* LETTER PAGE */
            .letter-page {
            position: relative;
            z-index: 2;
            background: #fffdf6 url('https://www.transparenttextures.com/patterns/paper-fibers.png');
            border-radius: 12px;
            max-width: 750px;
            border: 1px solid rgba(0,0,0,0.05);
            box-shadow:
                0 20px 60px rgba(0,0,0,0.25),
                0 0 0 8px rgba(255,255,255,0.5);
            transform: rotate(-0.5deg);
            font-family: 'Cormorant Garamond', serif;
            color: #2e3b2e;
            position: relative;
            }

            /* Horizontal writing lines */
            .letter-page::before {
            content: "";
            position: absolute;
            top: 70px;
            left: 0;
            right: 0;
            bottom: 30px;
            background: repeating-linear-gradient(
                to bottom,
                rgba(46,139,87,0.08),
                rgba(46,139,87,0.08) 1px,
                transparent 36px
            );
            z-index: 0;
            border-radius: 12px;
            }

            /* Header */
            .letter-header {
            position: relative;
            z-index: 1;
            }
            .lifed-logo-stamp {
            display: inline-block;
            font-weight: 700;
            color: #2E8B57;
            border: 2px solid #2E8B57;
            border-radius: 50%;
            padding: 18px 24px;
            font-size: 0.9rem;
            letter-spacing: 1px;
            background: rgba(46,139,87,0.06);
            box-shadow: inset 0 0 10px rgba(46,139,87,0.2);
            }
            .letter-header h2 {
            font-family: 'Playfair Display', serif;
            margin-top: 10px;
            color: #1d3b2b;
            }

            /* Body text */
            .letter-content {
            position: relative;
            z-index: 1;
            padding-top: 1rem;
            }
            .letter-content p {
            font-size: 1.1rem;
            line-height: 1.8;
            margin-bottom: 1.5rem;
            color: #2d4234;
            text-align: justify;
            padding: 2px 6px;
            display: inline-block;
            }
            .thank-you {
            font-weight: 600;
            font-style: italic;
            color: #2E8B57;
            }
            .signature {
            font-family: 'Dancing Script', cursive;
            font-size: 1.6rem;
            color: #20B2AA;
            }

            /* Footer */
            .footer-line {
            height: 2px;
            width: 100%;
            background: linear-gradient(90deg, #2E8B57, #20B2AA);
            border-radius: 2px;
            }

            /* Lift effect */
            .letter-page:hover {
            transform: rotate(0deg) translateY(-10px);
            box-shadow:
                0 30px 70px rgba(0,0,0,0.25),
                0 0 0 10px rgba(255,255,255,0.6);
            transition: all 0.4s ease;
            }

            /* Responsive */
            @media (max-width: 768px) {
            .letter-page { padding: 2.5rem; }
            .lifed-logo-stamp { font-size: 0.8rem; padding: 14px 18px; }
            }


        /* Footer */
        footer {
            background-color: var(--lifed-dark);
            color: #fff;
            padding: 60px 0 30px;
        }

        footer h5 {
            color: var(--lifed-teal);
            font-weight: 600;
            margin-bottom: 20px;
        }

        footer ul {
            list-style: none;
            padding: 0;
        }

        footer ul li {
            margin-bottom: 10px;
        }

        footer ul li a {
            color: #ccc;
            text-decoration: none;
            transition: 0.3s;
        }

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

        .social-icons a {
            color: white;
            margin-right: 15px;
            font-size: 1.3rem;
            transition: 0.3s;
        }

        .social-icons a:hover {
            color: var(--lifed-teal);
        }