/* ===================================================================
   SabiHand — Mobile-first MVP stylesheet
   Clean, professional, Lagos construction managed service
   =================================================================== */

:root {
    --color-primary: #1a5632;
    --color-primary-light: #2a7a48;
    --color-accent: #e8a838;
    --color-accent-hover: #d4952e;
    --color-bg: #f7f8fa;
    --color-surface: #ffffff;
    --color-text: #1a1a2e;
    --color-text-muted: #6b7280;
    --color-border: #e5e7eb;
    --color-danger: #dc2626;
    --color-success: #16a34a;
    --color-warning: #f59e0b;
    --color-info: #2563eb;
    --radius: 8px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
}

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

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* --- Layout --- */
.container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 1rem; }
main { flex: 1; padding: 1.5rem 0; }

/* --- Nav --- */
.navbar {
    background: var(--color-primary);
    color: #fff;
    padding: 0.75rem 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; }
.navbar-brand { font-size: 1.25rem; font-weight: 700; color: #fff; text-decoration: none; }
.navbar-brand span { color: var(--color-accent); }
.navbar-links { display: flex; gap: 1rem; align-items: center; }
.navbar-links a {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.15s;
}
.navbar-links a:hover { color: #fff; }

/* --- Cards --- */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    margin-bottom: 1rem;
}
.card-header { font-size: 1.1rem; font-weight: 600; margin-bottom: 1rem; }

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 0.6rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: background 0.15s, transform 0.1s;
    line-height: 1.4;
}
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-light); }
.btn-accent { background: var(--color-accent); color: var(--color-text); }
.btn-accent:hover { background: var(--color-accent-hover); }
.btn-danger { background: var(--color-danger); color: #fff; }
.btn-outline {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.85rem; }
.btn-block { display: block; width: 100%; }

/* --- Forms --- */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-weight: 600; margin-bottom: 0.3rem; font-size: 0.9rem; }
.form-input {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    transition: border-color 0.15s;
    background: var(--color-surface);
}
.form-input:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(26,86,50,0.1); }
.form-help { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 0.25rem; }
.form-errors { color: var(--color-danger); font-size: 0.85rem; margin-top: 0.25rem; }
.form-errors ul { list-style: none; padding: 0; }

/* --- Alerts --- */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-size: 0.9rem;
    border-left: 4px solid;
}
.alert-success { background: #f0fdf4; border-color: var(--color-success); color: #166534; }
.alert-error { background: #fef2f2; border-color: var(--color-danger); color: #991b1b; }
.alert-warning { background: #fffbeb; border-color: var(--color-warning); color: #92400e; }
.alert-info { background: #eff6ff; border-color: var(--color-info); color: #1e40af; }

/* --- Status badges --- */
.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.badge-success { background: #dcfce7; color: #166534; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-info { background: #dbeafe; color: #1e40af; }
.badge-muted { background: #f3f4f6; color: #6b7280; }

/* --- Table --- */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.6rem 0.75rem; text-align: left; border-bottom: 1px solid var(--color-border); font-size: 0.9rem; }
th { font-weight: 600; background: #f9fafb; }

/* --- Footer --- */
.footer {
    background: var(--color-text);
    color: rgba(255,255,255,0.6);
    text-align: center;
    padding: 1rem 0;
    font-size: 0.8rem;
    margin-top: auto;
}
.footer a { color: var(--color-accent); text-decoration: none; }

/* --- Auth pages --- */
.auth-container { max-width: 420px; margin: 2rem auto; }

/* --- Hero (landing page) --- */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: #fff;
    padding: 3rem 1rem;
    text-align: center;
}
.hero h1 { font-size: 2rem; margin-bottom: 0.75rem; }
.hero p { font-size: 1.1rem; opacity: 0.9; max-width: 600px; margin: 0 auto 1.5rem; }

/* --- Utilities --- */
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.text-sm { font-size: 0.85rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }

/* --- Responsive --- */
@media (max-width: 600px) {
    .hero h1 { font-size: 1.5rem; }
    .hero { padding: 2rem 1rem; }
    .navbar-links { gap: 0.5rem; }
    .navbar-links a { font-size: 0.8rem; }
    .card { padding: 1rem; }
}