/* ===== DESKTOP TIMELINE (1024px+) ===== */
        .joinbgscreen-timeline-section {
            width: 100%;
            max-width: 1200px;
            margin: 6rem auto;
            padding: 0 2rem;
            position: relative;
            display: none;
            overflow: hidden;

        }

        @media (min-width: 1024px) {
            .joinbgscreen-timeline-section {
                display: block;
            }
        }

        .joinbgscreen-timeline-header {
            text-align: center;
            margin-bottom: 4rem;
        }

        .joinbgscreen-timeline-main-title {
            font-size: clamp(2.5rem, 4vw, 3.5rem);
            font-weight: 700;
            color: var(--eco-green);
            margin-bottom: 1.5rem;
            line-height: 1.2;
            position: relative;
        }

        .joinbgscreen-timeline-main-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 100px;
            height: 4px;
            background: linear-gradient(90deg, var(--eco-green) 0%, var(--eco-accent) 100%);
            border-radius: 2px;
        }

        .joinbgscreen-timeline-subtitle {
            font-size: 1.2rem;
            color: var(--text-light);
            line-height: 1.6;
            max-width: 800px;
            margin: 0 auto;
            font-weight: 400;
            text-align: justify;
        }

        .joinbgscreen-timeline-container {
            position: relative;
            margin-top: 4rem;
        }

        .joinbgscreen-timeline-line {
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 4px;
            background: linear-gradient(180deg, 
                var(--eco-green) 0%, 
                var(--eco-accent) 50%, 
                var(--eco-blue) 100%);
            border-radius: 2px;
            transform: translateX(-50%);
            z-index: 1;
        }

        .joinbgscreen-timeline-progress {
            position: absolute;
            left: 50%;
            top: 0;
            width: 4px;
            height: 0%;
            background: linear-gradient(180deg, 
                var(--eco-green) 0%, 
                var(--eco-accent) 50%, 
                var(--eco-blue) 100%);
            border-radius: 2px;
            transform: translateX(-50%);
            z-index: 2;
            transition: height 0.8s ease-in-out;
        }

        .joinbgscreen-timeline-steps {
            position: relative;
            z-index: 3;
        }

        .joinbgscreen-timeline-step {
            position: relative;
            margin-bottom: 6rem;
            opacity: 0;
            transform: translateY(50px);
            transition: all 0.6s ease-out;
        }

        .joinbgscreen-timeline-step.joinbgscreen-visible {
            opacity: 1;
            transform: translateY(0);
        }

        .joinbgscreen-timeline-step:last-child {
            margin-bottom: 0;
        }

        .joinbgscreen-timeline-step:nth-child(odd) {
            padding-left: calc(50% + 3rem);
        }

        .joinbgscreen-timeline-step:nth-child(even) {
            padding-right: calc(50% + 3rem);
            text-align: right;
        }

        .joinbgscreen-step-node {
            position: absolute;
            top: 0;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: white;
            border: 4px solid var(--eco-green);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--eco-green);
            box-shadow: 0 4px 15px rgba(5, 111, 55, 0.2);
            transition: all 0.3s ease;
            z-index: 4;
            cursor: pointer;
        }

        .joinbgscreen-timeline-step:nth-child(odd) .joinbgscreen-step-node {
            left: calc(-50% - 30px);
        }

        .joinbgscreen-timeline-step:nth-child(even) .joinbgscreen-step-node {
            right: calc(-50% - 30px);
        }

        .joinbgscreen-timeline-step:nth-child(1) .joinbgscreen-step-node {
            border-color: var(--eco-green);
            color: var(--eco-green);
        }

        .joinbgscreen-timeline-step:nth-child(2) .joinbgscreen-step-node {
            border-color: var(--eco-accent);
            color: var(--eco-accent);
        }

        .joinbgscreen-timeline-step:nth-child(3) .joinbgscreen-step-node {
            border-color: var(--eco-blue);
            color: var(--eco-blue);
        }

        .joinbgscreen-timeline-step:nth-child(4) .joinbgscreen-step-node {
            border-color: var(--eco-dark-green);
            color: var(--eco-dark-green);
        }

        .joinbgscreen-timeline-step:nth-child(5) .joinbgscreen-step-node {
            border-color: #8b5cf6;
            color: #8b5cf6;
        }

        .joinbgscreen-timeline-step.joinbgscreen-active .joinbgscreen-step-node {
            transform: scale(1.1);
            box-shadow: 0 8px 25px rgba(5, 111, 55, 0.4);
            background: var(--eco-light);
        }

        .joinbgscreen-step-content {
            background: white;
            border-radius: 15px;
            padding: 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            border-left: 4px solid var(--eco-green);
            position: relative;
            transition: all 0.3s ease;
            cursor: pointer;
            overflow: hidden;
        }

        .joinbgscreen-timeline-step:nth-child(1) .joinbgscreen-step-content {
            border-left-color: var(--eco-green);
        }

        .joinbgscreen-timeline-step:nth-child(2) .joinbgscreen-step-content {
            border-left-color: var(--eco-accent);
        }

        .joinbgscreen-timeline-step:nth-child(3) .joinbgscreen-step-content {
            border-left-color: var(--eco-blue);
        }

        .joinbgscreen-timeline-step:nth-child(4) .joinbgscreen-step-content {
            border-left-color: var(--eco-dark-green);
        }

        .joinbgscreen-timeline-step:nth-child(5) .joinbgscreen-step-content {
            border-left-color: #8b5cf6;
        }

        .joinbgscreen-step-content:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
        }

        .joinbgscreen-step-header {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1rem;
            cursor: pointer;
        }

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

        .joinbgscreen-step-icon {
            font-size: 2rem;
            min-width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--eco-light);
            transition: all 0.3s ease;
        }

        .joinbgscreen-timeline-step:nth-child(1) .joinbgscreen-step-icon {
            background: rgba(5, 111, 55, 0.1);
        }

        .joinbgscreen-timeline-step:nth-child(2) .joinbgscreen-step-icon {
            background: rgba(45, 143, 95, 0.1);
        }

        .joinbgscreen-timeline-step:nth-child(3) .joinbgscreen-step-icon {
            background: rgba(75, 161, 248, 0.1);
        }

        .joinbgscreen-timeline-step:nth-child(4) .joinbgscreen-step-icon {
            background: rgba(3, 74, 36, 0.1);
        }

        .joinbgscreen-timeline-step:nth-child(5) .joinbgscreen-step-icon {
            background: rgba(139, 92, 246, 0.1);
        }

        .joinbgscreen-step-title {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0;
            flex: 1;
        }

        .joinbgscreen-step-duration {
            font-size: 0.9rem;
            color: var(--text-light);
            background: rgba(5, 111, 55, 0.1);
            padding: 0.3rem 0.8rem;
            border-radius: 15px;
            font-weight: 500;
        }

        .joinbgscreen-accordion-toggle {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--eco-green);
            color: white;
            border: none;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            transform: rotate(0deg);
        }

        .joinbgscreen-timeline-step.joinbgscreen-active .joinbgscreen-accordion-toggle {
            transform: rotate(180deg);
            background: var(--eco-blue);
        }

        .joinbgscreen-step-details {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease-out, padding 0.4s ease-out;
            padding: 0 0;
        }

        .joinbgscreen-timeline-step.joinbgscreen-active .joinbgscreen-step-details {
            max-height: 500px;
            padding: 1.5rem 0 0 0;
        }

        .joinbgscreen-step-description {
            font-size: 1.1rem;
            line-height: 1.6;
            color: var(--text-light);
            margin-bottom: 1.5rem;
            text-align: justify;
        }

        .joinbgscreen-step-connector {
            position: absolute;
            top: 30px;
            height: 2px;
            background: linear-gradient(90deg, transparent 0%, var(--eco-green) 50%, transparent 100%);
            z-index: 1;
        }

        .joinbgscreen-timeline-step:nth-child(odd) .joinbgscreen-step-connector {
            left: calc(-50% + 30px);
            width: calc(50% - 30px);
        }

        .joinbgscreen-timeline-step:nth-child(even) .joinbgscreen-step-connector {
            right: calc(-50% + 30px);
            width: calc(50% - 30px);
        }

        .joinbgscreen-timeline-instruction {
            position: fixed;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            color: var(--eco-green);
            padding: 1rem 2rem;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            z-index: 1000;
            opacity: 0;
            transform: translateX(-50%) translateY(20px);
            transition: all 0.6s ease;
            pointer-events: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
        }

        .joinbgscreen-timeline-instruction.joinbgscreen-visible {
            opacity: 0.5;
            transform: translateX(-50%) translateY(0);
        }

        .joinbgscreen-timeline-instruction .joinbgscreen-arrow-icon {
            font-size: 1.2rem;
            animation: joinbgscreenBounceArrow 1.5s ease-in-out infinite;
        }

        @keyframes joinbgscreenBounceArrow {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-3px); }
        }

        @media (min-width: 1400px) {
            .joinbgscreen-timeline-section {
                max-width: 1400px;
            }
            
            .joinbgscreen-timeline-step:nth-child(odd) {
                padding-left: calc(50% + 4rem);
            }
            
            .joinbgscreen-timeline-step:nth-child(even) {
                padding-right: calc(50% + 4rem);
            }
            
            .joinbgscreen-step-content {
                padding: 2.5rem;
            }
        }

        /* ===== MOBILE TIMELINE (MAX 1023px) ===== */
        .joinsmallscreen-timeline-section {
            width: 100%;
            padding: 3rem 1rem;
            display: none;
        }

        @media (max-width: 1023px) {
            .joinsmallscreen-timeline-section {
                display: block;
            }
        }

        .joinsmallscreen-timeline-header {
            text-align: center;
            margin-bottom: 2.5rem;
        }

        .joinsmallscreen-timeline-title {
            font-size: clamp(1.8rem, 5vw, 2.5rem);
            font-weight: 700;
            color: var(--eco-green);
            margin-bottom: 1rem;
            line-height: 1.2;
            position: relative;
        }

        .joinsmallscreen-timeline-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--eco-green) 0%, var(--eco-accent) 100%);
            border-radius: 2px;
        }

        .joinsmallscreen-timeline-subtitle {
            font-size: 1rem;
            color: var(--text-light);
            line-height: 1.5;
            max-width: 600px;
            margin: 0 auto;
            font-weight: 400;
            text-align: justify;
        }

        .joinsmallscreen-timeline-container {
            max-width: 700px;
            margin: 0 auto;
        }

        .joinsmallscreen-timeline-cards {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .joinsmallscreen-timeline-card {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            border-left: 4px solid var(--eco-green);
            transition: all 0.3s ease;
            opacity: 0;
            transform: translateY(30px);
        }

        .joinsmallscreen-timeline-card.joinsmallscreen-visible {
            opacity: 1;
            transform: translateY(0);
        }

        .joinsmallscreen-timeline-card:hover {
            box-shadow: 0 6px 25px rgba(0, 0, 0, 0.12);
            transform: translateY(-2px);
        }

        .joinsmallscreen-timeline-card:nth-child(1) {
            border-left-color: var(--eco-green);
        }

        .joinsmallscreen-timeline-card:nth-child(2) {
            border-left-color: var(--eco-accent);
        }

        .joinsmallscreen-timeline-card:nth-child(3) {
            border-left-color: var(--eco-blue);
        }

        .joinsmallscreen-timeline-card:nth-child(4) {
            border-left-color: var(--eco-dark-green);
        }

        .joinsmallscreen-timeline-card:nth-child(5) {
            border-left-color: #8b5cf6;
        }

        .joinsmallscreen-card-header {
            padding: 1.2rem 1.5rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            min-height: 48px;
            transition: background-color 0.3s ease;
        }

        .joinsmallscreen-card-header:hover {
            background: rgba(5, 111, 55, 0.02);
        }

        .joinsmallscreen-step-number {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--eco-green);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            font-weight: 600;
            flex-shrink: 0;
            transition: all 0.3s ease;
        }

        .joinsmallscreen-timeline-card:nth-child(1) .joinsmallscreen-step-number {
            background: var(--eco-green);
        }

        .joinsmallscreen-timeline-card:nth-child(2) .joinsmallscreen-step-number {
            background: var(--eco-accent);
        }

        .joinsmallscreen-timeline-card:nth-child(3) .joinsmallscreen-step-number {
            background: var(--eco-blue);
        }

        .joinsmallscreen-timeline-card:nth-child(4) .joinsmallscreen-step-number {
            background: var(--eco-dark-green);
        }

        .joinsmallscreen-timeline-card:nth-child(5) .joinsmallscreen-step-number {
            background: #8b5cf6;
        }

        .joinsmallscreen-card-title-section {
            flex: 1;
            min-width: 0;
        }

        .joinsmallscreen-card-title {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 0.2rem;
            line-height: 1.3;
        }

        .joinsmallscreen-card-duration {
            font-size: 0.85rem;
            color: var(--text-light);
            background: rgba(5, 111, 55, 0.08);
            padding: 0.2rem 0.6rem;
            border-radius: 10px;
            font-weight: 500;
            display: inline-block;
        }

        .joinsmallscreen-accordion-toggle {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--eco-green);
            color: white;
            border: none;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            cursor: pointer;
            transition: all 0.3s ease;
            transform: rotate(0deg);
            flex-shrink: 0;
        }

        .joinsmallscreen-timeline-card.joinsmallscreen-active .joinsmallscreen-accordion-toggle {
            transform: rotate(180deg);
            background: var(--eco-blue);
        }

        .joinsmallscreen-card-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out, padding 0.3s ease-out;
            padding: 0 1.5rem;
        }

        .joinsmallscreen-timeline-card.joinsmallscreen-active .joinsmallscreen-card-content {
            max-height: 300px;
            padding: 0 1.5rem 1.5rem 1.5rem;
        }

        .joinsmallscreen-card-description {
            font-size: 1rem;
            line-height: 1.5;
            color: var(--text-light);
            padding-top: 1rem;
            text-align: justify;
        }

        .joinsmallscreen-timeline-instruction {
            position: fixed;
            bottom: 15px;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(5, 111, 55, 0.9);
            color: white;
            padding: 0.6rem 1.2rem;
            border-radius: 25px;
            font-size: 0.8rem;
            font-weight: 500;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transform: translateX(-50%) translateY(10px);
            transition: all 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
            pointer-events: none;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            box-shadow: 0 2px 8px rgba(5, 111, 55, 0.3);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            max-width: 200px;
        }

        .joinsmallscreen-timeline-instruction.joinsmallscreen-visible {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }

        .joinsmallscreen-timeline-instruction .joinsmallscreen-arrow-icon {
            font-size: 0.7rem;
            animation: joinsmallscreenBounceArrow 2s ease-in-out infinite;
            opacity: 0.8;
        }

        @keyframes joinsmallscreenBounceArrow {
            0%, 100% { 
                transform: translateY(0);
                opacity: 0.8;
            }
            50% { 
                transform: translateY(-1px);
                opacity: 1;
            }
        }

        /* Mobile Specific Adjustments */
        @media (max-width: 480px) {
            .joinsmallscreen-timeline-section {
                padding: 2rem 0.8rem;
            }
            
            .joinsmallscreen-timeline-cards {
                gap: 1rem;
            }
            
            .joinsmallscreen-card-header {
                padding: 1rem;
            }
            
            .joinsmallscreen-timeline-card.joinsmallscreen-active .joinsmallscreen-card-content {
                padding: 0 1rem 1rem 1rem;
            }
            
            .joinsmallscreen-card-title {
                font-size: 1.1rem;
            }
            
            .joinsmallscreen-timeline-instruction {
                left: 1rem;
                right: 1rem;
                transform: none;
                font-size: 0.75rem;
                padding: 0.5rem 1rem;
                max-width: none;
                border-radius: 20px;
            }
            
            .joinsmallscreen-timeline-instruction.joinsmallscreen-visible {
                transform: translateY(0);
            }
        }