/*
 * © 2025 Dr Michael Guo. All rights reserved.
 */

/* 
   Learn pages stylesheet for Double Entry Accounting
   Apple-inspired design with clean, minimalist aesthetics
*/

.learn-page-content {
    padding: 3rem 2rem;
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.8rem;
    line-height: 1.6;
}

.learn-page-content h2 {
    font-size: 3.2rem;
    font-weight: 600;
    margin-top: 2.4rem;
    margin-bottom: 1.2rem;
    color: var(--dark-color);
    letter-spacing: -0.02em;
}

.learn-page-content h3 {
    font-size: 2.4rem;
    font-weight: 500;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.learn-page-content p {
    margin-bottom: 1.2rem;
    color: #333;
}

.learn-page-content ul, 
.learn-page-content ol {
    margin-bottom: 1.6rem;
    margin-left: 2rem;
}

.learn-page-content li {
    margin-bottom: 0.8rem;
}

.learn-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.6rem 0 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border-radius: 12px;
    overflow: hidden;
}

.learn-table th, .learn-table td {
    border: 1px solid #e6e6e6;
    padding: 1.6rem;
    text-align: left;
}

.learn-table th {
    background-color: var(--light-color);
    font-weight: 500;
}

.learn-table tr:nth-child(even) {
    background-color: #fafafa;
}

.example-box {
    background-color: var(--light-color);
    border-radius: 12px;
    padding: 2rem;
    margin: 1.6rem 0 2rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.example-box p:last-child {
    margin-bottom: 0;
}

.example-box h4 {
    font-size: 1.8rem;
    margin-bottom: 1.2rem;
    font-weight: 500;
}

.debit-column, .credit-column {
    width: 50%;
    float: left;
}

.t-account {
    margin: 2rem 0;
    border-top: 2px solid #000;
    position: relative;
    background-color: white;
    border-radius: 0 0 8px 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.t-account:before {
    content: "";
    height: 100%;
    width: 1px;
    background-color: #000;
    position: absolute;
    left: 50%;
    top: 0;
}

.t-account-header {
    text-align: center;
    font-weight: 500;
    font-size: 1.8rem;
    margin-bottom: 1rem;
    padding: 0.8rem 0;
}

.t-account-content {
    display: flex;
    padding-bottom: 1rem;
}

.t-account-content div {
    width: 50%;
    padding: 1rem 1.6rem;
    position: relative;
}

.t-account-label {
    display: flex;
    justify-content: space-between;
}

.t-account-label div {
    width: 50%;
    text-align: center;
    font-weight: 500;
    padding: 0.5rem 0;
    color: var(--secondary-color);
}

.clearfix {
    clear: both;
}

.back-link {
    display: inline-block;
    margin: 2rem 0;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

.back-link:hover {
    color: #004ba0;
}

.back-link:before {
    content: "←";
    margin-right: 0.6rem;
}

.account-card {
    background-color: white;
    border-radius: 12px;
    padding: 2.4rem;
    margin: 1.6rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    transition: transform 0.3s ease;
}

.account-card:hover {
    transform: translateY(-3px);
}

.account-type {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 2rem;
}

.ledger-flow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.ledger-step {
    background-color: white;
    border-radius: 12px;
    padding: 2rem;
    margin: 1rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    flex: 1;
    min-width: 250px;
    position: relative;
    transition: transform 0.3s ease;
}

.ledger-step:hover {
    transform: translateY(-3px);
}

.ledger-step:not(:last-child):after {
    content: "→";
    position: absolute;
    right: -15px;
    top: 50%;
    font-size: 24px;
    color: var(--primary-color);
    font-weight: 300;
}

.statement-container {
    margin: 2rem 0;
}

.statement-title {
    text-align: center;
    font-weight: 600;
    margin-bottom: 1.6rem;
    font-size: 1.8rem;
    line-height: 1.4;
}

.financial-statement {
    width: 100%;
    border-collapse: collapse;
}

.financial-statement th, 
.financial-statement td {
    padding: 1.2rem;
}

.financial-statement th {
    text-align: left;
    font-weight: 500;
}

.financial-statement td {
    text-align: right;
}

.financial-statement .total {
    font-weight: 500;
    border-top: 1px solid #000;
}

.financial-statement .section-header {
    font-weight: 500;
    padding-top: 1.6rem;
}

.financial-statement .indent {
    padding-left: 3.2rem;
}

@media (max-width: 768px) {
    .game-header {
        padding: 8rem 2.4rem 4.8rem;
    }

    .game-header h1 {
        font-size: 3.2rem;
    }

    .game-header p {
        font-size: 1.8rem;
    }

    .learn-page-content {
        padding: 3.2rem 1.6rem;
        font-size: 1.6rem;
    }
    
    .learn-page-content h2 {
        font-size: 2.8rem;
    }
    
    .learn-page-content h3 {
        font-size: 2.2rem;
    }
    
    .learn-table th, 
    .learn-table td {
        padding: 1.2rem;
    }
    
    .example-box {
        padding: 2rem;
    }
    
    .ledger-step:not(:last-child):after {
        content: "↓";
        position: static;
        display: block;
        text-align: center;
        margin: 1rem 0;
    }
}

@media (max-width: 576px) {
    .game-header {
        padding: 10rem 1.6rem 3.2rem;
    }

    .game-header h1 {
        font-size: 2.4rem;
        line-height: 1.2;
    }

    .game-header p {
        font-size: 1.4rem;
    }

    .learn-page-content {
        padding: 2.4rem 1.2rem;
        font-size: 1.4rem;
    }

    .learn-page-content h2 {
        font-size: 2.4rem;
        margin-top: 2rem;
    }

    .learn-page-content h3 {
        font-size: 1.8rem;
    }

    .learn-table th, 
    .learn-table td {
        padding: 0.8rem;
        font-size: 1.2rem;
    }

    .example-box {
        padding: 1.6rem;
    }

    .t-account-header {
        font-size: 1.4rem;
    }

    .ledger-step {
        padding: 1.6rem;
        margin: 0.8rem;
        min-width: 200px;
    }

    .ledger-step h3 {
        font-size: 1.6rem;
    }
}