@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

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

/* Mobile / PWA optimizations */
html{
    -webkit-text-size-adjust:100%;
    -webkit-tap-highlight-color:transparent;
    scroll-behavior:smooth;
}
body{
    -webkit-overflow-scrolling:touch;
    overscroll-behavior-y:contain;
}
/* Safe area insets for notched phones */
.page-header{
    padding-top:max(24px, env(safe-area-inset-top, 0px));
    padding-left:max(24px, env(safe-area-inset-left, 0px));
    padding-right:max(24px, env(safe-area-inset-right, 0px));
}
/* Prevent iOS zoom on input focus (font-size must be >=16px) */
input,select,textarea{
    font-size:16px !important;
    touch-action:manipulation;
}
/* Minimum touch target size */
button,a,.btn-header,.btn-primary,.btn-secondary,.btn-approve,.btn-reject,.btn-whatsapp,.btn-sm-icon,.filter-tab,.theme-toggle,.shift-label{
    min-height:44px;
    touch-action:manipulation;
}

:root{
    --cyan:#00D4FF;--purple:#A855F7;--green:#22C55E;--amber:#FBBF24;--red:#EF4444;
    /* Dark (default) */
    --bg:#0B0F19;
    --bg-card:rgba(255,255,255,0.05);
    --bg-card-solid:#111827;
    --border:rgba(255,255,255,0.08);
    --hover-bg:rgba(255,255,255,0.05);
    --subtle-bg:rgba(255,255,255,0.03);
    --text:#F1F5F9;
    --text-dim:#94A3B8;
    --text-muted:#475569;
    --card-shadow:0 0 0 1px rgba(255,255,255,0.06);
    --input-bg:rgba(255,255,255,0.05);
    --input-border:rgba(255,255,255,0.1);
    --input-focus-border:var(--cyan);
    --input-focus-shadow:0 0 0 3px rgba(0,212,255,0.12);
    --header-bg:linear-gradient(135deg,#0E1525 0%,#141B2D 100%);
    --header-border:rgba(0,212,255,0.15);
    --btn-bg:linear-gradient(135deg,var(--cyan),#0099CC);
    --btn-color:#000;
    --btn-shadow:0 4px 16px rgba(0,212,255,0.2);
    --btn-hover-shadow:0 6px 24px rgba(0,212,255,0.3);
    --error-bg:rgba(239,68,68,0.1);--error-border:rgba(239,68,68,0.2);--error-text:#FCA5A5;
    --warning-bg:rgba(251,191,36,0.1);--warning-border:rgba(251,191,36,0.2);--warning-text:#FCD34D;
    --success-color:var(--green);
    --table-header-bg:rgba(255,255,255,0.03);
    --table-border:rgba(255,255,255,0.06);
    --logo-ring:rgba(0,212,255,0.15);
}
[data-theme="light"]{
    --bg:#F1F5F9;
    --bg-card:#FFFFFF;
    --bg-card-solid:#FFFFFF;
    --border:#E2E8F0;
    --hover-bg:rgba(0,0,0,0.04);
    --subtle-bg:rgba(0,0,0,0.02);
    --text:#0F172A;
    --text-dim:#64748B;
    --text-muted:#94A3B8;
    --card-shadow:0 1px 3px rgba(0,0,0,0.08),0 1px 2px rgba(0,0,0,0.04);
    --input-bg:#F8FAFC;
    --input-border:#E2E8F0;
    --input-focus-border:#0891B2;
    --input-focus-shadow:0 0 0 3px rgba(8,145,178,0.1);
    --header-bg:linear-gradient(135deg,#0E7490 0%,#155E75 100%);
    --header-border:rgba(255,255,255,0.15);
    --btn-bg:linear-gradient(135deg,#0891B2,#0E7490);
    --btn-color:#FFFFFF;
    --btn-shadow:0 4px 16px rgba(8,145,178,0.2);
    --btn-hover-shadow:0 6px 24px rgba(8,145,178,0.3);
    --error-bg:#FEF2F2;--error-border:#FECACA;--error-text:#DC2626;
    --warning-bg:#FFFBEB;--warning-border:#FDE68A;--warning-text:#92400E;
    --success-color:#059669;
    --table-header-bg:#F1F5F9;
    --table-border:#E2E8F0;
    --logo-ring:rgba(8,145,178,0.15);
}

body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);min-height:100vh}
::selection{background:var(--cyan);color:#000}

/* Container */
.container{max-width:520px;width:100%;margin:0 auto;padding-bottom:env(safe-area-inset-bottom, 0px)}

/* Header */
.page-header{
    background:var(--header-bg);
    padding:24px 24px 28px;
    border-bottom:1px solid var(--header-border);
    margin-bottom:20px;
    position:relative;overflow:hidden;
}
.page-header::after{
    content:'';position:absolute;bottom:0;left:0;right:0;height:1px;
    background:linear-gradient(90deg,transparent,var(--cyan),transparent);opacity:.4;
}
.header-content{
    display:flex;justify-content:space-between;align-items:flex-start;gap:16px;
    position:relative;z-index:1;
}
.branch-header{display:flex;align-items:center;gap:14px;margin-bottom:12px}
.logo-small{
    width:48px;height:48px;border-radius:12px;padding:3px;
    background:var(--bg-card-solid);
    box-shadow:0 0 0 2px var(--logo-ring);
    object-fit:contain;
}
.branch-name{font-size:1.15rem;font-weight:800;color:#fff;margin:0 0 4px;letter-spacing:-.02em}
.branch-code{
    display:inline-block;font-size:.7rem;font-weight:600;color:rgba(255,255,255,.8);
    background:rgba(255,255,255,.12);padding:3px 10px;border-radius:6px;letter-spacing:.5px;
}
.header-badge{
    display:inline-flex;align-items:center;gap:8px;
    background:rgba(255,255,255,.1);padding:5px 12px;border-radius:8px;
}
.header-badge svg{width:14px;height:14px;stroke:#fff}
.header-badge-text{font-size:.72rem;font-weight:700;color:#fff;letter-spacing:.03em}
.welcome-text{font-size:.82rem;color:rgba(255,255,255,.7);margin:0;position:relative;z-index:1}

/* Buttons */
.btn-header{
    background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.15);
    padding:8px 16px;border-radius:8px;font-size:.82rem;font-weight:600;
    cursor:pointer;transition:all .2s;white-space:nowrap;flex-shrink:0;
    font-family:'Inter',sans-serif;
}
.btn-header:hover{background:rgba(255,255,255,.2)}

.btn-primary{
    width:100%;padding:14px 20px;font-family:'Inter',sans-serif;
    font-size:.95rem;font-weight:700;color:var(--btn-color);
    background:var(--btn-bg);border:none;border-radius:12px;
    cursor:pointer;transition:all .25s;box-shadow:var(--btn-shadow);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--btn-hover-shadow)}
.btn-primary:active{transform:translateY(0)}
.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* Cards */
.card{
    background:var(--bg-card);border:1px solid var(--border);
    border-radius:16px;padding:20px;margin:0 16px 16px;
    box-shadow:var(--card-shadow);
}
.card-title{font-size:.88rem;font-weight:700;margin:0 0 16px;color:var(--text);display:flex;align-items:center;gap:8px}
.card-title::before{content:'';width:3px;height:14px;border-radius:2px;background:linear-gradient(180deg,var(--cyan),var(--purple))}

/* Form */
.form-group{margin-bottom:18px}
.form-group:last-child{margin-bottom:0}
.form-label{display:block;font-size:.72rem;font-weight:600;color:var(--text-dim);text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px}
.form-input{
    width:100%;padding:12px 14px;font-size:.95rem;font-family:'Inter',sans-serif;
    background:var(--input-bg);color:var(--text);
    border:1.5px solid var(--input-border);border-radius:10px;
    transition:all .2s;outline:none;
}
.form-input:focus{border-color:var(--input-focus-border);box-shadow:var(--input-focus-shadow)}
.form-input::placeholder{color:var(--text-muted)}

/* Section Header */
.section-header{
    font-size:.82rem;font-weight:700;color:var(--text);
    margin:20px 16px 12px;padding-left:10px;
    border-left:3px solid var(--cyan);display:flex;align-items:center;gap:8px;
}

/* Error */
.error-box{
    background:var(--error-bg);border:1px solid var(--error-border);color:var(--error-text);
    padding:12px 16px;border-radius:10px;margin-bottom:16px;font-size:.85rem;font-weight:500;
    display:none;
}
/* Warning */
.warning-box{
    background:var(--warning-bg);border:1px solid var(--warning-border);color:var(--warning-text);
    padding:12px 16px;border-radius:10px;margin-bottom:16px;font-size:.85rem;font-weight:500;
    display:none;
}

/* Table */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 -4px;padding:0 4px}
.data-table{width:100%;border-collapse:collapse;font-size:.85rem;min-width:300px}
.data-table th{
    background:var(--table-header-bg);padding:10px 12px;text-align:left;
    font-size:.7rem;font-weight:600;color:var(--text-dim);text-transform:uppercase;letter-spacing:.05em;
}
.data-table td{padding:10px 12px;border-top:1px solid var(--table-border);vertical-align:middle}
.data-table .product-name{font-weight:600;color:var(--text);font-size:.88rem}
.number-input{
    width:100%;padding:8px 10px;font-size:.9rem;font-family:'Inter',sans-serif;
    text-align:center;background:var(--input-bg);color:var(--text);
    border:1.5px solid var(--input-border);border-radius:8px;transition:all .2s;outline:none;
}
.number-input:focus{border-color:var(--input-focus-border);box-shadow:var(--input-focus-shadow)}

/* Success */
.success-screen{display:none;text-align:center;padding:60px 24px}
.success-icon{font-size:3rem;margin-bottom:16px}
.success-title{font-size:1.3rem;font-weight:800;color:var(--success-color);margin-bottom:8px}
.success-sub{color:var(--text-dim);font-size:.9rem;margin-bottom:28px}

/* Theme Toggle */
.theme-toggle{
    display:flex;align-items:center;gap:8px;padding:6px 12px;border-radius:8px;
    background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.15);
    color:#fff;font-size:.78rem;font-weight:600;font-family:'Inter',sans-serif;
    cursor:pointer;transition:all .2s;flex-shrink:0;white-space:nowrap;
}
.theme-toggle:hover{background:rgba(255,255,255,.2)}
.theme-toggle svg{width:16px;height:16px}

/* Modal */
.modal-overlay{
    position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:1000;
    display:flex;align-items:center;justify-content:center;
    backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
    opacity:0;pointer-events:none;transition:opacity .25s;
}
.modal-overlay.active{opacity:1;pointer-events:auto}
.modal-content{
    background:var(--bg-card-solid);border:1px solid var(--border);
    border-radius:16px;width:92%;max-width:500px;max-height:85vh;
    overflow-y:auto;padding:24px;position:relative;
    transform:translateY(20px);transition:transform .25s;
    box-shadow:0 20px 60px rgba(0,0,0,.3);
}
.modal-overlay.active .modal-content{transform:translateY(0)}
.modal-close{
    position:absolute;top:12px;right:12px;background:var(--hover-bg);
    border:1px solid var(--border);border-radius:8px;width:32px;height:32px;
    display:flex;align-items:center;justify-content:center;cursor:pointer;
    color:var(--text-dim);font-size:1.1rem;transition:all .2s;
}
.modal-close:hover{background:var(--error-bg);color:var(--red);border-color:var(--error-border)}
.modal-title{font-size:1rem;font-weight:700;margin:0 0 16px;color:var(--text);display:flex;align-items:center;gap:8px}
.modal-title::before{content:'';width:3px;height:14px;border-radius:2px;background:linear-gradient(180deg,var(--cyan),var(--purple))}

/* Nav Badge */
.nav-badge{
    display:inline-flex;align-items:center;justify-content:center;
    min-width:18px;height:18px;padding:0 5px;border-radius:10px;
    background:var(--red);color:#fff;font-size:.65rem;font-weight:700;
    margin-left:auto;
}

/* Diff Table */
.diff-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.diff-table{width:100%;border-collapse:collapse;font-size:.82rem;margin:8px 0;min-width:280px}
.diff-table th{
    background:var(--table-header-bg);padding:8px 10px;text-align:left;
    font-size:.68rem;font-weight:600;color:var(--text-dim);text-transform:uppercase;letter-spacing:.04em;
}
.diff-table td{padding:8px 10px;border-top:1px solid var(--table-border);vertical-align:middle}
.diff-old{color:var(--red);text-decoration:line-through;font-weight:500}
.diff-new{color:var(--green);font-weight:600}

/* Status Colors */
.status-pending{color:var(--amber)}
.status-approved{color:var(--green)}
.status-rejected{color:var(--red)}
.card-pending{border-left:3px solid var(--amber)}
.card-approved{border-left:3px solid var(--green)}
.card-rejected{border-left:3px solid var(--red)}

/* Change Request Card */
.cr-card{
    background:var(--bg-card);border:1px solid var(--border);
    border-radius:12px;padding:16px;margin-bottom:12px;
}
.cr-meta{font-size:.78rem;color:var(--text-dim);margin-bottom:8px;display:flex;flex-wrap:wrap;gap:8px}
.cr-note{
    background:var(--subtle-bg);border:1px solid var(--border);
    border-radius:8px;padding:10px 12px;font-size:.82rem;color:var(--text);margin:8px 0;
    font-style:italic;
}
.cr-actions{display:flex;gap:8px;margin-top:12px}
.btn-approve{
    padding:8px 16px;background:linear-gradient(135deg,var(--green),#16A34A);color:#fff;
    border:none;border-radius:8px;font-size:.82rem;font-weight:600;cursor:pointer;
    font-family:'Inter',sans-serif;transition:all .2s;
}
.btn-approve:hover{transform:translateY(-1px);box-shadow:0 4px 16px rgba(34,197,94,.3)}
.btn-reject{
    padding:8px 16px;background:var(--hover-bg);color:var(--red);
    border:1px solid var(--error-border);border-radius:8px;font-size:.82rem;font-weight:600;
    cursor:pointer;font-family:'Inter',sans-serif;transition:all .2s;
}
.btn-reject:hover{background:var(--error-bg)}
.btn-whatsapp{
    padding:8px 16px;background:#25D366;color:#fff;
    border:none;border-radius:8px;font-size:.82rem;font-weight:600;cursor:pointer;
    font-family:'Inter',sans-serif;transition:all .2s;display:inline-flex;align-items:center;gap:6px;
}
.btn-whatsapp:hover{transform:translateY(-1px);box-shadow:0 4px 16px rgba(37,211,102,.3)}
.btn-secondary{
    padding:8px 16px;background:var(--hover-bg);color:var(--text);
    border:1px solid var(--border);border-radius:8px;font-size:.82rem;font-weight:600;
    cursor:pointer;font-family:'Inter',sans-serif;transition:all .2s;
}
.btn-secondary:hover{background:var(--subtle-bg);border-color:var(--cyan)}

/* Today Shifts */
.today-shift-item{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:12px;border-radius:10px;background:var(--subtle-bg);
    border:1px solid var(--border);margin-bottom:8px;
}
.today-shift-item:last-child{margin-bottom:0}
.today-shift-info{flex:1}
.today-shift-type{font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;margin-bottom:2px}
.today-shift-employee{font-size:.85rem;font-weight:600;color:var(--text)}
.today-shift-actions{display:flex;gap:6px}
.btn-sm-icon{
    padding:6px 10px;background:var(--hover-bg);color:var(--text-dim);
    border:1px solid var(--border);border-radius:8px;font-size:.75rem;font-weight:600;
    cursor:pointer;font-family:'Inter',sans-serif;transition:all .2s;
}
.btn-sm-icon:hover{background:var(--subtle-bg);color:var(--cyan);border-color:rgba(0,212,255,.3)}

/* Filter Tabs */
.filter-tabs{display:flex;gap:2px;background:var(--subtle-bg);padding:3px;border-radius:10px;margin-bottom:16px;width:100%;max-width:fit-content;border:1px solid var(--border);overflow-x:auto;-webkit-overflow-scrolling:touch;flex-shrink:0}
.filter-tab{
    padding:8px 16px;border-radius:8px;font-size:.8rem;font-weight:600;
    cursor:pointer;border:none;background:none;color:var(--text-dim);
    transition:all .15s;font-family:'Inter',sans-serif;
    white-space:nowrap;flex-shrink:0;
}
.filter-tab.active{background:rgba(0,212,255,.08);color:var(--cyan)}
.filter-tab:hover:not(.active){color:var(--text)}

/* Responsive */
@media(max-width:480px){
    .page-header{padding:20px 12px 24px;padding-top:max(20px, env(safe-area-inset-top, 0px))}
    .header-content{flex-wrap:wrap;gap:12px}
    .branch-name{font-size:1.05rem}
    .card{margin:0 10px 12px;padding:14px}
    .modal-content{width:98%;padding:14px;max-height:90vh;border-radius:12px}
    .modal-overlay{align-items:flex-end}
    .modal-overlay.active .modal-content{transform:translateY(0);border-radius:16px 16px 0 0;max-height:92vh}
    .cr-actions{flex-direction:column}
    .today-shift-item{flex-direction:column;align-items:flex-start;gap:8px}
    .today-shift-actions{width:100%;justify-content:flex-start}
    .section-header{margin:16px 12px 10px}
    .form-label{font-size:.75rem}
    .card-title{font-size:.85rem}
    .btn-primary{padding:16px 20px}
}
@media(max-width:360px){
    .card{margin:0 8px 10px;padding:12px}
    .page-header{padding:16px 10px 20px}
    .branch-header{gap:10px}
    .logo-small{width:40px;height:40px;border-radius:10px}
    .header-badge{padding:4px 10px}
    .header-badge-text{font-size:.68rem}
}
/* PWA standalone mode */
@media(display-mode:standalone){
    body{
        padding-top:env(safe-area-inset-top, 0px);
        -webkit-user-select:none;user-select:none;
    }
    input,textarea{
        -webkit-user-select:text;user-select:text;
    }
}