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

        :root {
            --navy: #1D3557;
            --emerald: #2A9D8F;
            --slate: #4A4A4A;
            --light-bg: #F4F4F9;
            --white: #FFFFFF;
            --border: #E8E8EE;
        }

        body {
            font-family: 'Inter', sans-serif;
            background: var(--light-bg);
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: 'Plus Jakarta Sans', sans-serif;
            color: var(--navy);
            font-weight: 800;
        }

        .navbar {
            background: var(--white);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            padding: 15px 0;
        }

        .navbar-brand {
            font-size: 1.8rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--navy) 0%, var(--emerald) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-section {
            background: linear-gradient(135deg, var(--navy) 0%, #2d4a73 100%);
            color: var(--white);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -150px;
            right: -100px;
            width: 700px;
            height: 700px;
            background: rgba(42, 157, 143, 0.12);
            border-radius: 50%;
        }

        .hero-section h1 {
            color: var(--white);
            font-size: 3rem;
            margin-bottom: 20px;
        }

        .hero-section p {
            font-size: 1.1rem;
            opacity: 0.9;
        }

        .flow-section {
            padding: 100px 0;
            background: var(--white);
            position: relative;
            z-index: 2;
        }

        .section-title {
            text-align: center;
            margin-bottom: 70px;
        }

        .section-title h2 {
            font-size: 2.8rem;
            margin-bottom: 15px;
        }

        .section-title p {
            font-size: 1.1rem;
            color: var(--slate);
        }

        /* ============ HORIZONTAL FLOW ============ */
        .flow-container {
            position: relative;
            margin: 60px 0;
        }

        .flow-timeline {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            position: relative;
            margin-bottom: 40px;
        }

        .flow-timeline::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--emerald) 0%, var(--navy) 100%);
            z-index: 0;
        }

        .flow-step {
            flex: 1;
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 0 15px;
        }

        .step-circle {
            width: 85px;
            height: 85px;
            margin: 0 auto 25px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--emerald) 0%, #228974 100%);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            font-weight: 900;
            box-shadow: 0 10px 30px rgba(42, 157, 143, 0.25);
            border: 5px solid var(--white);
            transition: all 0.3s ease;
        }

        .flow-step:hover .step-circle {
            transform: scale(1.15);
            box-shadow: 0 15px 40px rgba(42, 157, 143, 0.4);
        }

        .step-title {
            font-weight: 800;
            color: var(--navy);
            margin-bottom: 10px;
            font-size: 1.1rem;
        }

        .step-description {
            color: var(--slate);
            font-size: 0.9rem;
            line-height: 1.6;
            min-height: 50px;
        }

        /* ============ DETAILED STEPS ============ */
        .detailed-steps {
            margin-top: 80px;
        }

        .step-card {
            background: var(--white);
            border: 2px solid var(--border);
            border-radius: 12px;
            padding: 40px;
            margin-bottom: 25px;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .step-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 5px;
            height: 100%;
            background: linear-gradient(180deg, var(--emerald) 0%, var(--navy) 100%);
        }

        .step-card:hover {
            border-color: var(--emerald);
            box-shadow: 0 15px 40px rgba(42, 157, 143, 0.12);
        }

        .step-header {
            display: flex;
            align-items: center;
            gap: 20px;
            margin-bottom: 20px;
        }

        .step-number-badge {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--navy) 0%, var(--emerald) 100%);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 900;
            flex-shrink: 0;
        }

        .step-header-content h3 {
            margin-bottom: 5px;
            font-size: 1.3rem;
        }

        .step-header-content p {
            color: var(--slate);
            font-size: 0.9rem;
            margin: 0;
        }

        .step-content {
            padding-left: 80px;
        }

        .step-content p {
            color: var(--slate);
            line-height: 1.8;
            margin-bottom: 15px;
        }

        .requirements-list {
            background: var(--light-bg);
            padding: 20px;
            border-radius: 8px;
            margin: 20px 0;
        }

        .requirements-list h5 {
            color: var(--navy);
            font-weight: 800;
            margin-bottom: 15px;
        }

        .requirements-list ul {
            list-style: none;
        }

        .requirements-list li {
            color: var(--slate);
            margin: 10px 0;
            padding-left: 25px;
            position: relative;
        }

        .requirements-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--emerald);
            font-weight: 900;
            font-size: 1.1rem;
        }

        .actor-badge {
            display: inline-block;
            background: linear-gradient(135deg, var(--emerald) 0%, #228974 100%);
            color: var(--white);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 700;
            margin-top: 10px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .actor-badge.admin {
            background: linear-gradient(135deg, var(--navy) 0%, #2d4a73 100%);
        }

        .actor-badge.user {
            background: linear-gradient(135deg, var(--emerald) 0%, #228974 100%);
        }

        .actor-badge.system {
            background: linear-gradient(135deg, #FF6B35 0%, #FF8C42 100%);
        }

        .flow-arrows {
            text-align: center;
            margin: 30px 0;
            font-size: 1.5rem;
            color: var(--emerald);
            font-weight: 900;
        }

        .timeline-visual {
            position: relative;
            padding: 40px 0;
        }

        .timeline-line {
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(180deg, var(--emerald) 0%, var(--navy) 100%);
        }

        .timeline-item {
            margin-bottom: 40px;
            position: relative;
        }

        .timeline-item:nth-child(odd) {
            margin-left: 0;
            margin-right: 50%;
            text-align: right;
            padding-right: 40px;
        }

        .timeline-item:nth-child(even) {
            margin-left: 50%;
            margin-right: 0;
            text-align: left;
            padding-left: 40px;
        }

        .timeline-dot {
            position: absolute;
            width: 20px;
            height: 20px;
            background: var(--white);
            border: 4px solid var(--emerald);
            border-radius: 50%;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
        }

        .timeline-content {
            background: var(--white);
            padding: 25px;
            border-radius: 12px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
            border-left: 3px solid var(--emerald);
        }

        .timeline-content h4 {
            margin-bottom: 10px;
            color: var(--navy);
            font-weight: 800;
        }

        .timeline-content p {
            color: var(--slate);
            font-size: 0.9rem;
            margin-bottom: 10px;
        }

        .btn-section {
            text-align: center;
            margin-top: 50px;
        }

        .btn-primary-custom {
            background: linear-gradient(135deg, var(--emerald) 0%, #228974 100%);
            color: var(--white);
            padding: 15px 50px;
            border: none;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 40px rgba(42, 157, 143, 0.3);
        }

        .info-box {
            background: linear-gradient(135deg, rgba(42, 157, 143, 0.1) 0%, rgba(29, 53, 87, 0.05) 100%);
            border-left: 4px solid var(--emerald);
            padding: 25px;
            border-radius: 8px;
            margin: 30px 0;
        }

        .info-box h5 {
            color: var(--navy);
            margin-bottom: 10px;
            font-weight: 800;
        }

        .info-box p {
            color: var(--slate);
            margin: 0;
            line-height: 1.6;
        }

        footer {
            background: var(--navy);
            color: var(--white);
            padding: 40px 0 20px;
            text-align: center;
        }

        footer p {
            color: rgba(255, 255, 255, 0.7);
            margin: 0;
        }

        @media (max-width: 768px) {
            .flow-timeline {
                flex-direction: column;
            }

            .flow-timeline::before {
                left: 40px;
                top: 0;
                bottom: 0;
                width: 3px;
                height: 100%;
            }

            .step-circle {
                width: 70px;
                height: 70px;
                font-size: 1.5rem;
            }

            .timeline-line {
                left: 40px;
            }

            .timeline-item:nth-child(odd),
            .timeline-item:nth-child(even) {
                margin-left: 0;
                margin-right: 0;
                text-align: left;
                padding-left: 100px;
            }

            .step-content {
                padding-left: 0;
            }

            .hero-section h1 {
                font-size: 2rem;
            }
        }