/* ================================
   Bordro Hesaplama - Premium Design
   ================================ */
:root {
    --bg: #f8f9fc; --bg2: #ffffff; --bg3: #f1f5f9;
    --text: #111827; --text2: #4b5563; --text3: #9ca3af;
    --accent: #4f46e5; --accent2: #7c3aed; --accent-hover: #4338ca;
    --accent-bg: rgba(79,70,229,0.05); --accent-light: #ede9fe;
    --accent-grad: linear-gradient(135deg, #4f46e5, #7c3aed);
    --success: #059669; --success-bg: rgba(5,150,105,0.08);
    --danger: #dc2626; --danger-bg: rgba(220,38,38,0.06);
    --warning: #d97706; --info: #0284c7; --info-bg: rgba(2,132,199,0.06);
    --border: #e5e7eb; --border2: #f3f4f6;
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
    --r: 12px; --r-sm: 8px; --r-lg: 16px; --r-xl: 20px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --sidebar-w: 268px;
}
[data-theme="dark"] {
    --bg: #0b0f1a; --bg2: #131a2b; --bg3: #1a2332;
    --text: #f0f4f8; --text2: #8b9cb8; --text3: #5a6a80;
    --accent: #818cf8; --accent2: #a78bfa; --accent-hover: #6366f1;
    --accent-bg: rgba(129,140,248,0.08); --accent-light: #2e2766;
    --accent-grad: linear-gradient(135deg, #6366f1, #a78bfa);
    --success: #34d399; --success-bg: rgba(52,211,153,0.1);
    --danger: #fb7185; --danger-bg: rgba(251,113,133,0.08);
    --warning: #fbbf24; --info: #38bdf8; --info-bg: rgba(56,189,248,0.08);
    --border: #1e293b; --border2: #1a2332;
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.3);
    --shadow: 0 2px 6px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.25);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.3);
}

/* === RESET === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px} body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none} button{cursor:pointer;border:none;background:none;font:inherit;color:inherit}
input,select{font:inherit;color:inherit} ul,ol{list-style:none} table{border-collapse:collapse;width:100%}
img{max-width:100%}

/* === LAYOUT === */
#app{display:flex;min-height:100vh}
#sidebar{width:var(--sidebar-w);height:100vh;background:linear-gradient(180deg,#0f0c29 0%,#1a1745 40%,#24204a 100%);color:#bfc4e0;position:fixed;top:0;left:0;z-index:100;display:flex;flex-direction:column;transition:transform 0.25s ease, width 0.25s ease}
#main{flex:1;margin-left:var(--sidebar-w);display:flex;flex-direction:column;transition:margin-left 0.25s ease}
#header{height:56px;padding:0 32px;display:flex;align-items:center;justify-content:flex-end;gap:8px;background:var(--bg2);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50;backdrop-filter:blur(8px)}
[data-theme="dark"] #header{background:rgba(19,26,43,0.8)}
#content{flex:1;padding:32px;max-width:1280px;width:100%;margin:0 auto}

/* Sidebar collapsed (desktop) */
.sidebar-toggle{font-size:16px;padding:8px;border-radius:var(--r-sm);transition:all 0.15s;color:var(--text2);margin-right:auto;display:flex;align-items:center;justify-content:center}
.sidebar-toggle:hover{background:var(--bg3);color:var(--accent)}
@media(min-width:1025px){
    [data-sidebar="collapsed"] #sidebar{transform:translateX(-100%)}
    [data-sidebar="collapsed"] #main{margin-left:0}
}
@media(max-width:1024px){
    .sidebar-toggle{display:none}
}

/* === SIDEBAR === */
#sidebar{display:flex;flex-direction:column;box-shadow:inset -1px 0 0 rgba(255,255,255,0.04)}
.sidebar-header{padding:20px 18px 18px;display:flex;align-items:center;justify-content:space-between;gap:8px;border-bottom:1px solid rgba(255,255,255,0.06);flex-shrink:0;background:linear-gradient(180deg,rgba(255,255,255,0.02) 0%,transparent 100%)}
.sidebar-close{display:none;color:#8b8fad;width:30px;height:30px;align-items:center;justify-content:center;border-radius:var(--r-sm);background:transparent;border:none;cursor:pointer;transition:all 0.15s}
.sidebar-close:hover{background:rgba(255,255,255,0.08);color:#fff}
.brand-link{display:flex;align-items:center;flex:1;min-width:0;text-decoration:none;gap:11px;transition:opacity 0.15s}
.brand-link:hover{opacity:0.92}
.brand-mark{width:38px;height:38px;flex-shrink:0;border-radius:10px;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.08);padding:5px;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px rgba(37,99,235,0.18)}
.brand-mark img{width:100%;height:100%;object-fit:contain;display:block}
.brand-text{display:flex;flex-direction:column;min-width:0;flex:1}
.brand-name{font-size:1.04rem;font-weight:800;color:#fff;letter-spacing:-0.025em;line-height:1.1}
.brand-meta{font-size:0.65rem;color:#8b8fad;font-weight:500;margin-top:2px;letter-spacing:0.01em;text-transform:none}
/* Login sayfası için yatay logo ihtiyacı kalsın */
.brand-logo{height:30px;width:auto;max-width:100%;display:block;object-fit:contain}

/* Backwards compat (login.html still uses .logo-icon) */
.logo-icon{width:36px;height:36px;background:var(--accent-grad);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:15px;box-shadow:0 4px 12px rgba(79,70,229,0.4);overflow:hidden;flex-shrink:0}
.logo-icon img,.logo-icon svg{width:100%;height:100%;object-fit:contain;display:block}
.logo-title{display:block;font-size:1.1rem;font-weight:700;color:#fff;letter-spacing:-0.02em}
.logo-sub{display:block;font-size:0.65rem;color:#6c6f93;font-weight:500;margin-top:1px}

.sidebar-nav{flex:1;overflow-y:auto;padding:16px 0 12px;scrollbar-width:thin;scrollbar-color:rgba(255,255,255,0.1) transparent}
.sidebar-nav::-webkit-scrollbar{width:4px}
.sidebar-nav::-webkit-scrollbar-track{background:transparent}
.sidebar-nav::-webkit-scrollbar-thumb{background:rgba(255,255,255,0.08);border-radius:4px}

.nav-section{margin-bottom:20px;padding:0 12px}
.nav-section:last-child{margin-bottom:8px}
.nav-label{font-size:0.62rem;text-transform:uppercase;letter-spacing:0.13em;color:#5d6285;padding:0 14px 10px;font-weight:700}
.nav-item{display:flex;align-items:center;gap:12px;padding:9px 14px;border-radius:var(--r-sm);font-size:0.84rem;color:#9396b8;transition:all 0.15s;margin-bottom:1px;position:relative;font-weight:500;text-decoration:none;letter-spacing:-0.005em}
.nav-item:hover{background:rgba(255,255,255,0.05);color:#e8e9f3}
.nav-item:hover .ni{color:#a78bfa;opacity:1}
.nav-item.active{background:linear-gradient(90deg,rgba(99,102,241,0.22) 0%,rgba(124,58,237,0.08) 100%);color:#fff;font-weight:600}
.nav-item.active::before{content:'';position:absolute;left:-12px;top:50%;transform:translateY(-50%);width:3px;height:22px;background:var(--accent-grad);border-radius:0 3px 3px 0;box-shadow:0 0 12px rgba(124,58,237,0.55)}
.nav-item.active .ni{color:#a78bfa;opacity:1}
.ni{flex-shrink:0;color:#7c80a3;opacity:0.9;transition:all 0.15s;display:flex;align-items:center;justify-content:center;width:18px;height:18px}

.sidebar-user{padding:14px 16px;border-top:1px solid rgba(255,255,255,0.06);display:flex;align-items:center;gap:10px;flex-shrink:0;background:rgba(0,0,0,0.15)}
.user-avatar-lg{width:34px;height:34px;border-radius:50%;background:var(--accent-grad);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:0.84rem;flex-shrink:0;letter-spacing:-0.02em;box-shadow:0 4px 12px rgba(124,58,237,0.3)}
.user-meta{flex:1;min-width:0;display:flex;flex-direction:column}
.user-meta-name{font-size:0.82rem;font-weight:600;color:#e8e9f3;letter-spacing:-0.01em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.user-meta-role{font-size:0.66rem;color:#6c6f93;text-transform:uppercase;letter-spacing:0.08em;font-weight:600;margin-top:1px}
.user-logout{display:flex;align-items:center;justify-content:center;padding:7px;border-radius:var(--r-sm);color:#7c80a3;transition:all 0.15s;text-decoration:none;flex-shrink:0}
.user-logout:hover{background:rgba(220,38,38,0.15);color:#fb7185}

.sidebar-footer{padding:12px 18px;border-top:1px solid rgba(255,255,255,0.05);font-size:0.62rem;color:#3a3d5a;line-height:1.5}
.overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.5);backdrop-filter:blur(4px);z-index:99}

/* === HEADER === */
.menu-toggle{display:none;color:var(--text2);padding:7px;border-radius:var(--r-sm);background:transparent;border:none;cursor:pointer;transition:all 0.15s;align-items:center;justify-content:center}
.menu-toggle:hover{background:var(--bg3);color:var(--accent)}
#theme-toggle{padding:8px;border-radius:var(--r-sm);transition:all 0.15s;color:var(--text2);background:transparent;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center}
#theme-toggle:hover{background:var(--bg3);color:var(--accent)}
.header-right{display:flex;gap:4px;align-items:center}

/* (eski header user-pill — admin paneli backwards compat) */
.user-pill{display:flex;align-items:center;gap:8px;padding:5px 10px 5px 5px;background:var(--bg3);border:1px solid var(--border);border-radius:99px;font-size:0.82rem;color:var(--text);font-weight:500;margin-right:4px}
.user-avatar{width:26px;height:26px;background:var(--accent-grad);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:0.78rem;letter-spacing:-0.02em}
.user-name{font-weight:600;letter-spacing:-0.01em}
.header-btn{display:flex;align-items:center;justify-content:center;padding:8px;border-radius:var(--r-sm);color:var(--text2);transition:all 0.15s;text-decoration:none}
.header-btn:hover{background:var(--danger-bg);color:var(--danger)}
.header-logout{display:flex;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--r-sm);color:var(--text2);background:var(--bg3);border:1px solid var(--border);font-size:0.82rem;font-weight:600;text-decoration:none;transition:all 0.15s;letter-spacing:-0.01em;margin-left:4px}
.header-logout:hover{background:var(--danger-bg);color:var(--danger);border-color:var(--danger)}
@media(max-width:640px){.header-logout span{display:none}.header-logout{padding:8px}}
@media(max-width:640px){.user-name{display:none}}

/* === TYPOGRAPHY === */
.page-header{margin-bottom:28px}
.page-header h1{font-size:1.65rem;font-weight:800;letter-spacing:-0.03em;color:var(--text)}
.page-header p{font-size:0.85rem;color:var(--text2);margin-top:4px;max-width:560px;line-height:1.6}

/* === CARDS === */
.card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-xs);transition:box-shadow 0.2s}
.card:hover{box-shadow:var(--shadow)}
.card-accent{border-top:3px solid var(--accent)}
.card-title{font-size:0.95rem;font-weight:700;color:var(--text);letter-spacing:-0.01em}
.card-sub{font-size:0.78rem;color:var(--text3);margin-top:2px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}

/* === MINI STAT CARDS === */
.mini-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;margin-bottom:20px}
.mini-grid.cols2{grid-template-columns:1fr 1fr}
.mini-grid.cols3{grid-template-columns:1fr 1fr 1fr}
.mini-grid.cols4{grid-template-columns:repeat(4,1fr)}
.mini-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--r);padding:14px 16px;transition:border-color 0.15s}
.mini-card:hover{border-color:var(--accent)}
.mini-label{font-size:0.68rem;color:var(--text3);text-transform:uppercase;letter-spacing:0.04em;font-weight:600}
.mini-val{font-size:1.2rem;font-weight:700;margin-top:4px;font-variant-numeric:tabular-nums;letter-spacing:-0.02em}

/* === FORMS === */
.form-group{margin-bottom:18px}
.form-label{display:block;font-size:0.78rem;font-weight:600;color:var(--text2);margin-bottom:6px}
.form-input{width:100%;padding:10px 14px;background:var(--bg);border:1.5px solid var(--border);border-radius:var(--r-sm);font-size:0.92rem;outline:none;transition:all 0.15s}
.form-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg)}
.form-input::placeholder{color:var(--text3)}
.form-select{width:100%;padding:10px 14px;background:var(--bg);border:1.5px solid var(--border);border-radius:var(--r-sm);font-size:0.92rem;outline:none;cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%239ca3af' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:32px}
.form-select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg)}
.input-wrap{position:relative}
.input-wrap .form-input{padding-right:48px}
.input-suffix{position:absolute;right:14px;top:50%;transform:translateY(-50%);font-size:0.82rem;color:var(--text3);pointer-events:none;font-weight:500}
.form-hint{font-size:0.7rem;color:var(--text3);margin-top:4px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.incentive-list{max-height:240px;overflow-y:auto;border:1.5px solid var(--border);border-radius:var(--r-sm);background:var(--bg);padding:4px}
.incentive-item{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:var(--r-sm);cursor:pointer;font-size:0.84rem;color:var(--text);transition:background 0.12s}
.incentive-item:hover{background:var(--accent-bg)}
.incentive-item input[type=checkbox]{width:15px;height:15px;accent-color:var(--accent);cursor:pointer;flex-shrink:0}
.incentive-item input[type=checkbox]:checked+.incentive-name{color:var(--accent);font-weight:600}
.incentive-name{line-height:1.3}
.incentive-item.locked{opacity:0.4;cursor:not-allowed}
.incentive-item.locked:hover{background:transparent}
.incentive-item.locked .incentive-name{text-decoration:line-through}
.benefit-list{display:flex;flex-direction:column;gap:8px;margin-bottom:8px}
.benefit-row{display:flex;flex-direction:column;gap:6px;padding:10px;background:var(--bg);border:1px solid var(--border);border-radius:var(--r-sm);transition:border-color 0.15s}
.benefit-row:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg)}
.benefit-row .b-name{padding:8px 10px;font-size:0.84rem;background:var(--bg2)}
.benefit-row .b-controls{display:flex;gap:6px;align-items:stretch}
.benefit-row .b-amount-wrap{flex:1 1 0;min-width:0;position:relative}
.benefit-row .b-amount{padding:8px 30px 8px 10px;font-size:0.84rem;width:100%;background:var(--bg2);text-align:right;font-variant-numeric:tabular-nums}
.benefit-row .b-amount-wrap .input-suffix{right:10px;font-size:0.72rem}
.benefit-row .b-status{flex:1.1 1 0;min-width:0;padding:8px 28px 8px 10px;font-size:0.82rem;background:var(--bg2)}
.benefit-row .b-remove{flex:0 0 32px;border-radius:var(--r-sm);background:var(--bg2);border:1px solid var(--border);color:var(--text3);cursor:pointer;font-size:13px;line-height:1;transition:all 0.15s;padding:0;display:flex;align-items:center;justify-content:center}
.benefit-row .b-remove:hover{background:var(--danger-bg);color:var(--danger);border-color:var(--danger)}
.btn-add{background:transparent;border:1.5px dashed var(--border);color:var(--accent);padding:10px 14px;border-radius:var(--r-sm);cursor:pointer;font-weight:600;font-size:0.82rem;width:100%;transition:all 0.15s;display:flex;align-items:center;justify-content:center;gap:6px;letter-spacing:-0.01em}
.btn-add:hover{background:var(--accent-bg);border-style:solid;border-color:var(--accent)}
.btn-add:active{transform:translateY(1px)}

/* === Form section grouping === */
.form-section{margin-bottom:18px;padding-bottom:18px;border-bottom:1px solid var(--border2)}
.form-section:last-of-type{border-bottom:none;padding-bottom:0;margin-bottom:14px}
.form-section-title{display:flex;align-items:center;gap:8px;font-size:0.68rem;text-transform:uppercase;letter-spacing:0.08em;color:var(--text3);font-weight:700;margin-bottom:12px}
.form-section-title .badge-count{margin-left:auto;background:var(--accent-bg);color:var(--accent);padding:2px 8px;border-radius:99px;font-size:0.68rem;font-weight:700;letter-spacing:0;text-transform:none}
.form-actions{display:flex;flex-direction:column;gap:8px;padding-top:6px}
.btn-text{background:transparent;color:var(--text3);font-size:0.78rem;font-weight:500;padding:8px;border-radius:var(--r-sm);transition:color 0.15s;width:100%;text-align:center;cursor:pointer}
.btn-text:hover{color:var(--danger)}

/* === BUTTONS === */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 22px;border-radius:var(--r-sm);font-size:0.85rem;font-weight:600;background:var(--accent);color:#fff;transition:all 0.15s;white-space:nowrap;box-shadow:0 1px 3px rgba(79,70,229,0.2)}
.btn:hover{background:var(--accent-hover);box-shadow:0 4px 12px rgba(79,70,229,0.25);transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-secondary{background:var(--bg3);color:var(--text);border:1px solid var(--border);box-shadow:none}
.btn-secondary:hover{background:var(--border);box-shadow:none;transform:none}
.btn-block{width:100%}
.badge{display:inline-flex;padding:3px 10px;border-radius:99px;font-size:0.68rem;font-weight:600;letter-spacing:0.02em}
.badge-success{background:var(--success-bg);color:var(--success)}
.badge-accent{background:var(--accent-bg);color:var(--accent)}

/* === TABS (hesaplama türü seçimi) === */
.calc-tabs{display:flex;gap:4px;background:var(--bg3);border-radius:var(--r);padding:4px;margin-bottom:20px}
.calc-tab{flex:1;padding:10px 16px;border-radius:var(--r-sm);font-size:0.84rem;font-weight:600;text-align:center;color:var(--text2);cursor:pointer;transition:all 0.15s;border:none;background:transparent}
.calc-tab:hover{color:var(--text)}
.calc-tab.active{background:var(--bg2);color:var(--accent);box-shadow:var(--shadow)}
[data-theme="dark"] .calc-tab.active{background:var(--bg3)}

/* === TABLE === */
.dtable{font-size:0.82rem}
.dtable th{background:var(--bg3);font-weight:600;text-align:left;padding:10px 14px;color:var(--text3);font-size:0.7rem;text-transform:uppercase;letter-spacing:0.05em;border-bottom:2px solid var(--border)}
.dtable td{padding:11px 14px;border-bottom:1px solid var(--border2)}
.dtable tr:last-child td{border-bottom:none}
.dtable tr:hover td{background:var(--bg3)}
.dtable .row-highlight{background:var(--accent-bg);font-weight:700}
.dtable .row-highlight td{border-color:var(--accent-light)}

/* === CALCULATOR LAYOUT === */
.calc-layout{display:grid;grid-template-columns:340px 1fr;gap:28px;align-items:start}
.calc-sidebar{position:sticky;top:80px}
.calc-main{display:flex;flex-direction:column;gap:16px}
.empty-state{text-align:center;padding:60px 20px;color:var(--text3)}

/* === RESULT HERO === */
.result-hero{background:var(--accent-grad);border-radius:var(--r-xl);padding:32px;text-align:center;color:#fff;position:relative;overflow:hidden;box-shadow:0 8px 30px rgba(79,70,229,0.3)}
.result-hero::before{content:'';position:absolute;top:-50px;right:-50px;width:180px;height:180px;border-radius:50%;background:rgba(255,255,255,0.07)}
.result-hero::after{content:'';position:absolute;bottom:-40px;left:-30px;width:140px;height:140px;border-radius:50%;background:rgba(255,255,255,0.04)}
.result-label{font-size:0.72rem;letter-spacing:0.15em;font-weight:600;opacity:0.85;position:relative}
.result-big{font-size:2.4rem;font-weight:800;margin-top:8px;letter-spacing:-0.03em;position:relative;text-shadow:0 2px 10px rgba(0,0,0,0.12)}

/* === HERO CALC (Home) === */
.hero-calc{background:var(--accent-grad);border-radius:var(--r-xl);padding:32px;color:#fff;margin-bottom:28px;position:relative;overflow:hidden;box-shadow:0 8px 30px rgba(79,70,229,0.25)}
.hero-calc::before{content:'';position:absolute;top:-40px;right:-30px;width:180px;height:180px;border-radius:50%;background:rgba(255,255,255,0.06)}
.hero-title{font-size:1.15rem;font-weight:700;margin-bottom:14px;position:relative}
.hero-row{display:flex;gap:10px;align-items:flex-end;position:relative}
.hero-input{flex:1} .hero-input label{display:block;font-size:0.78rem;opacity:0.75;margin-bottom:5px;font-weight:500}
.hero-input input{width:100%;padding:11px 14px;border-radius:var(--r-sm);border:1.5px solid rgba(255,255,255,0.2);background:rgba(255,255,255,0.1);color:#fff;font-size:1rem;font-weight:600;outline:none;backdrop-filter:blur(4px)}
.hero-input input::placeholder{color:rgba(255,255,255,0.4)}
.hero-input input:focus{border-color:rgba(255,255,255,0.4);background:rgba(255,255,255,0.15)}
.hero-result{margin-top:20px;padding-top:16px;border-top:1px solid rgba(255,255,255,0.12);display:flex;justify-content:space-between;position:relative}
.hero-result-label{font-size:0.78rem;opacity:0.7;font-weight:500}
.hero-result-val{font-size:1.4rem;font-weight:700}

/* === FEATURE CARDS === */
.fcard{background:var(--bg2);border:1px solid var(--border);border-radius:var(--r-lg);padding:20px;transition:all 0.2s;display:block;position:relative;overflow:hidden}
.fcard:hover{border-color:var(--accent);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.fcard::after{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--accent-grad);transform:scaleX(0);transition:transform 0.25s}
.fcard:hover::after{transform:scaleX(1)}
.fcard-icon{width:42px;height:42px;border-radius:var(--r);display:flex;align-items:center;justify-content:center;margin-bottom:12px;font-size:18px;transition:transform 0.2s}
.fcard:hover .fcard-icon{transform:scale(1.08)}
.fcard-title{font-size:0.9rem;font-weight:700;margin-bottom:4px;letter-spacing:-0.01em}
.fcard-desc{font-size:0.76rem;color:var(--text2);line-height:1.55}

/* === STEP CARDS (adım adım, tek sütun, sürekli açık) === */
.step-grid{display:flex;flex-direction:column;gap:10px;margin-top:14px}
.sg-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--r);padding:18px 20px 18px 22px;display:block;position:relative;overflow:visible;transition:border-color 0.15s}
.sg-card::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;border-radius:3px 0 0 3px}
.sg-card:hover{border-color:var(--border)}
.sg-card.type-deduct::before{background:var(--danger)}
.sg-card.type-exempt::before{background:var(--success)}
.sg-card.type-info::before{background:var(--info)}
.sg-card.type-add::before{background:var(--accent2)}
.sg-card.type-incentive::before{background:#10b981}
.sg-head{display:flex;align-items:flex-start;gap:14px}
.sg-num{width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:0.78rem;font-weight:800;color:#fff;flex-shrink:0;font-variant-numeric:tabular-nums;letter-spacing:-0.02em}
.sg-meta{flex:1;min-width:0;display:flex;justify-content:space-between;align-items:flex-start;gap:14px}
.sg-title{font-size:0.95rem;font-weight:700;color:var(--text);line-height:1.35;letter-spacing:-0.01em}
.sg-amount{font-size:1.05rem;font-weight:800;font-variant-numeric:tabular-nums;white-space:nowrap;text-align:right;letter-spacing:-0.02em;line-height:1.35}
.sg-amount.deduct{color:var(--danger)}
.sg-amount.exempt{color:var(--success)}
.sg-amount.neutral{color:var(--text)}
.sg-amount.add{color:var(--accent2)}
.sg-amount.result{color:var(--success)}
.sg-body{margin-top:12px;padding-left:48px}
.sg-law{display:inline-block;background:var(--info-bg);color:var(--info);font-size:0.7rem;padding:3px 10px;border-radius:5px;margin-bottom:8px;font-weight:500;letter-spacing:0.01em}
.sg-desc{font-size:0.82rem;color:var(--text2);line-height:1.65;margin-bottom:10px}
.sg-formula{font-family:'SF Mono','Fira Code',ui-monospace,monospace;font-size:0.76rem;background:var(--bg3);padding:10px 14px;border-radius:var(--r-sm);color:var(--text2);line-height:1.55;border:1px solid var(--border2);overflow-x:auto}
.sg-subs{margin-top:10px;background:var(--bg);border:1px solid var(--border2);border-radius:var(--r-sm);padding:10px 14px}
.sg-sub{display:flex;justify-content:space-between;font-size:0.8rem;padding:4px 0}
.sg-sub:not(:last-child){border-bottom:1px dashed var(--border2)}
.sg-sub span{color:var(--text2)}
.sg-sub b{color:var(--text);font-variant-numeric:tabular-nums;font-weight:600;letter-spacing:-0.01em}
.sg-card.sg-result{background:var(--success-bg);border:2px solid var(--success);padding:18px 22px}
.sg-card.sg-result::before{display:none}
.sg-card.sg-result .sg-num{width:38px;height:38px;border-radius:50%;font-size:14px;background:var(--success)}
.sg-card.sg-result .sg-title{font-size:0.85rem;color:var(--success);font-weight:600}
.sg-card.sg-result .sg-amount{font-size:1.5rem;color:var(--success);font-weight:800}

/* === RESPONSIVE === */
@media(max-width:1024px){
    #sidebar{transform:translateX(-100%)} #sidebar.open{transform:translateX(0)}
    .overlay.open{display:block} .sidebar-close{display:flex!important}
    #main{margin-left:0} .menu-toggle{display:block}
    #header{justify-content:space-between;padding:0 16px} #content{padding:20px 16px}
    .calc-layout{grid-template-columns:1fr} .calc-sidebar{position:static}
}
@media(max-width:640px){
    .step-grid{grid-template-columns:1fr}
    .mini-grid.cols3,.mini-grid.cols4{grid-template-columns:1fr 1fr}
    .form-row{grid-template-columns:1fr}
    .result-big{font-size:1.8rem}
    .hero-result{flex-direction:column;gap:10px}
    .card-grid{grid-template-columns:1fr}
    .calc-tabs{flex-direction:column}
}