:root{
    --bg:#f3f6fb;
    --card:#ffffff;
    --border:#e3e8ef;
    --text:#1f2733;
    --muted:#6b7686;

    /* Yeni Kurumsal Tema */
    --green:#2C2C2C;
    --green-dark:#000000;
    --green-bg:#f4f4f4;
    --green-border:#d8d8d8;

    --input-border:#d7dde6;
    --radius:10px;
}

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

html{
    height:100%;
}

body{
    background:var(--bg);
    color:var(--text);
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
    font-size:15px;
    line-height:1.5;
    min-height:100%;
    display:flex;
    flex-direction:column;
}

.page{
    width:min(1600px,95%);
    margin:30px auto;
    flex:1 0 auto; /* içerik kısa olsa bile footer alta yapışır */
}

.layout{
    display:grid;
    grid-template-columns:minmax(0,1fr) 340px;
    gap:24px;
    align-items:start;
}

.card,
.sidebar-card{
    background:var(--card);
    border:1px solid var(--border);
    border-radius:var(--radius);
    padding:28px;
}

.card+.card{
    margin-top:24px;
}

h1.step-title{
    font-size:20px;
    font-weight:700;
    margin-bottom:22px;
}

.field-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:20px;
}

.field label{
    display:block;
    margin-bottom:8px;
    font-size:14px;
    font-weight:500;
}

.field input,
.field select{
    width:100%;
    height:46px;
    padding:0 14px;
    border:1px solid var(--input-border);
    border-radius:8px;
    background:#fff;
    font-size:14px;
    transition:.25s;
}

.field select{
    appearance:none;
    background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' stroke='%236b7686' stroke-width='1.6' fill='none'/></svg>");
    background-repeat:no-repeat;
    background-position:right 14px center;
    padding-right:40px;
}

.field input:focus,
.field select:focus{
    outline:none;
    border-color:#2C2C2C;
    box-shadow:0 0 0 3px rgba(44,44,44,.12);
}

.actions{
    margin-top:25px;
    display:flex;
    flex-wrap:wrap;
    gap:12px;
}

.btn{
    display:inline-flex;
    justify-content:center;
    align-items:center;
    height:46px;
    padding:0 22px;
    border-radius:8px;
    font-size:14px;
    font-weight:600;
    text-decoration:none;
    cursor:pointer;
    transition:.25s;
    border:1px solid transparent;
}

.btn-primary{
    background:#2C2C2C;
    color:#fff;
}

.btn-primary:hover{
    background:#000;
}

.btn-secondary{
    background:#fff;
    border:1px solid var(--input-border);
    color:var(--text);
}

.btn-secondary:hover{
    background:#f3f3f3;
}

.sidebar-card h2{
    font-size:16px;
    margin-bottom:16px;
}

.sidebar-card ul{
    padding-left:18px;
}

.sidebar-card li{
    margin-bottom:10px;
    font-size:14px;
}

.note{
    margin-top:18px;
    padding:14px;
    border:1px solid var(--border);
    border-radius:8px;
    color:var(--muted);
    font-size:13px;
}

.block-title{
    display:flex;
    justify-content:space-between;
    align-items:center;
    margin-bottom:20px;
}

.block-title .left{
    display:flex;
    align-items:center;
    gap:10px;
    font-weight:700;
}

.icon-box{
    width:34px;
    height:34px;
    border-radius:8px;
    background:#f0f0f0;
    display:flex;
    align-items:center;
    justify-content:center;
}

.pill{
    background:#f4f4f4;
    border:1px solid #d8d8d8;
    color:#2C2C2C;
    padding:4px 12px;
    border-radius:30px;
    font-size:12px;
    font-weight:600;
}

.pill-muted{
    background:#f5f5f5;
    border:1px solid var(--border);
    color:var(--muted);
}

.hint{
    font-size:13px;
    color:var(--muted);
}

.two-col{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(420px,1fr));
    gap:20px;
}

.wall-card{
    border:1px solid var(--border);
    border-radius:8px;
    padding:20px;
}

.wall-head{
    display:flex;
    justify-content:space-between;
    margin-bottom:16px;
}

.wall-head .name{
    font-weight:700;
}

.wall-head .dims{
    color:var(--muted);
    font-size:13px;
}

.checkbox-row{
    display:flex;
    align-items:center;
    gap:8px;
    margin-bottom:12px;
}

.checkbox-row input{
    width:17px;
    height:17px;
}

.doors-block{
    margin-top:20px;
}

.info-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:20px;
}

.info-grid .label{
    font-size:14px;
    margin-bottom:5px;
}

.info-grid .value{
    font-size:16px;
    font-weight:600;
}

.opt-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
    gap:16px;
}

.opt-item{
    display:flex;
    align-items:center;
    gap:10px;
    padding:15px;
    border:1px solid var(--border);
    border-radius:8px;
}

.section-label{
    font-size:16px;
    font-weight:700;
    margin-bottom:18px;
}

.result-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:20px;
    margin-bottom:28px;
}

.result-box{
    border:1px solid var(--border);
    border-radius:8px;
    padding:18px;
}

.result-box .label{
    color:var(--muted);
    font-size:13px;
    margin-bottom:6px;
}

.result-box .value{
    font-size:22px;
    font-weight:700;
}

.table-responsive{
    width:100%;
    overflow-x:auto;
}

.cost-table{
    width:100%;
    min-width:850px;
    border-collapse:collapse;
}

.cost-table th{
    padding:12px 10px;
    text-align:left;
    border-bottom:1px solid var(--border);
    color:var(--muted);
    font-size:13px;
}

.cost-table td{
    padding:15px 10px;
    border-bottom:1px solid var(--border);
}

.cost-table .num{
    white-space:nowrap;
}

.item-name{
    font-weight:600;
}

.item-sub{
    margin-top:4px;
    color:var(--muted);
    font-size:12px;
}

.totals-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(320px,1fr));
    gap:20px;
    margin-top:24px;
}

.total-box{
    background:#f4f4f4;
    border:1px solid #d8d8d8;
    border-radius:8px;
    padding:18px;
}

.total-box .label{
    color:#2C2C2C;
    font-size:13px;
    margin-bottom:6px;
}

.total-box .value{
    color:#2C2C2C;
    font-size:24px;
    font-weight:700;
}

.err{
    margin-bottom:20px;
    padding:14px;
    background:#fdecec;
    border:1px solid #f5b8b8;
    border-radius:8px;
    color:#b12222;
}

@media (max-width:1200px){

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

    .sidebar-card{
        order:-1;
    }

}

@media (max-width:768px){

    .page{
        width:95%;
    }

    .card,
    .sidebar-card{
        padding:20px;
    }

    .two-col{
        grid-template-columns:1fr;
    }

    .actions{
        flex-direction:column;
    }

    .btn{
        width:100%;
    }

    .wall-head{
        flex-direction:column;
        gap:5px;
    }

}

/* ===== Siyah Tema ===== */

:root{
    --green:#2C2C2C !important;
    --green-dark:#000 !important;
    --green-bg:#f4f4f4 !important;
    --green-border:#d8d8d8 !important;
}

.btn-primary{
    background:#2C2C2C !important;
    border-color:#2C2C2C !important;
    color:#fff !important;
}

.btn-primary:hover{
    background:#000 !important;
}

.pill{
    background:#f4f4f4 !important;
    border-color:#d8d8d8 !important;
    color:#2C2C2C !important;
}

.total-box{
    background:#f4f4f4 !important;
    border-color:#d8d8d8 !important;
}

.total-box .label,
.total-box .value{
    color:#2C2C2C !important;
}

.field input:focus,
.field select:focus{
    border-color:#2C2C2C !important;
    box-shadow:0 0 0 3px rgba(44,44,44,.12) !important;
}
/* ===== Site Header ===== */
.site-header{
    background:#fff;
    border-bottom:1px solid var(--border);
    padding:16px 0;
    flex-shrink:0;
}
.site-header-inner{
    width:min(1600px,95%);
    margin:0 auto;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:28px;
}
.site-logo-link{
    display:flex;
    align-items:center;
    text-decoration:none;
    flex-shrink:0;
}
.site-logo{
    height:48px;
    width:auto;
    max-width:200px;
    display:block;
    object-fit:contain;
}
.site-header-text{
    text-align:right;
    max-width:420px;
}
.site-slogan{
    font-size:14px;
    font-weight:700;
    color:#2C2C2C;
    margin-bottom:4px;
}
.site-desc{
    font-size:12px;
    color:var(--muted);
    line-height:1.45;
}

/* ===== Site Footer (sticky bottom) ===== */
.site-footer{
    background:#2C2C2C;
    color:#c8c8c8;
    margin-top:auto; /* kısa içerikte alta yapışır */
    padding:32px 0 0;
    flex-shrink:0;
    width:100%;
}
.site-footer-inner{
    width:min(1600px,95%);
    margin:0 auto;
    display:flex;
    justify-content:space-between;
    align-items:flex-start;
    gap:24px;
    padding-bottom:24px;
    flex-wrap:wrap;
}
.footer-col{
    font-size:13px;
    line-height:1.6;
    min-width:0;
}
.footer-col-right{
    text-align:right;
}
.footer-brand{
    font-size:15px;
    font-weight:700;
    color:#fff;
    margin-bottom:8px;
}
.footer-address{
    color:#a8a8a8;
}
.footer-col a{
    display:block;
    color:#e0e0e0;
    text-decoration:none;
    margin-bottom:4px;
    font-weight:500;
    word-break:break-word;
}
.footer-col a:hover{
    color:#fff;
    text-decoration:underline;
}
.footer-phone{
    color:#fff;
    font-weight:600;
    margin-top:6px;
}
.footer-bottom{
    border-top:1px solid #444;
    text-align:center;
    padding:14px 16px;
    font-size:12px;
    color:#888;
}

@media (max-width:900px){
    .site-header-inner{
        flex-direction:column;
        align-items:flex-start;
        gap:12px;
    }
    .site-header-text{
        text-align:left;
        max-width:100%;
    }
    .site-logo{
        height:42px;
    }
}

@media (max-width:768px){
    .site-header{
        padding:12px 0;
    }
    .site-slogan{
        font-size:13px;
    }
    .site-desc{
        font-size:11px;
    }
    .site-footer{
        padding:24px 0 0;
    }
    .site-footer-inner{
        flex-direction:column;
        gap:20px;
    }
    .footer-col-right{
        text-align:left;
    }
    .footer-bottom{
        font-size:11px;
        padding:12px 14px;
    }
}

@media (max-width:480px){
    .site-logo{
        height:36px;
        max-width:160px;
    }
    .site-header-text{
        display:none; /* çok dar ekranda sadece logo */
    }
}

.site-user{
    margin-top:8px;
    font-size:12px;
    display:flex;
    align-items:center;
    justify-content:flex-end;
    gap:10px;
}
.site-user span{
    color:#2C2C2C;
    font-weight:600;
}
.site-user a{
    color:var(--muted);
    text-decoration:none;
    font-weight:500;
}
.site-user a:hover{
    color:#2C2C2C;
    text-decoration:underline;
}
@media (max-width:900px){
    .site-user{justify-content:flex-start;}
}