/* ===================================================================
   ফিশ কেয়ার সিস্টেম - প্রধান স্টাইলশীট
   Author: Gemini
   Version: 1.0
   ===================================================================

   সূচিপত্র:
   1.  :root ভেরিয়েবল (রং ও মাপ)
   2.  গ্লোবাল রিসেট ও বেস স্টাইল
   3.  টাইপোগ্রাফি (h1, h2, p, a)
   4.  ইউটিলিটি ক্লাস (Container, Buttons, Forms)
   5.  গ্লোবাল হেডার (header.php)
   6.  ইউজার রোল সুইচিং (header.php)
   7.  পাবলিক কন্টেন্ট (.content-area)
   8.  পাবলিক কার্ড (Advice, Disease, Species)
   9.  ড্যাশবোর্ড লেআউট (Sidebar & Main Content)
   10. ড্যাশবোর্ড কম্পোনেন্ট (Metric Cards, Tables, Tabs)
   11. ফোরাম স্টাইল (forum.php)
   12. গ্লোবাল ফুটার (footer.php)
   13. রেসপন্সিভ মিডিয়া কোয়েরি
*/

/* ===================================================================
   1. :root ভেরিয়েবল (রং ও মাপ)
   =================================================================== */
:root {
    --color-primary: #0d6efd; /* প্রধান নীল (Modern Blue) */
    --color-secondary: #198754; /* সবুজ (SaaS Green) */
    --color-danger: #dc3545; /* লাল (Error) */
    --color-warning: #ffc107; /* হলুদ (Pending) */
    --color-dark: #212529; /* ড্যাশবোর্ড ব্যাকগ্রাউন্ড */
    --color-text: #333;
    --color-text-secondary: #666;
    --color-bg: #f4f7f6; /* পৃষ্ঠার প্রধান ব্যাকগ্রাউন্ড */
    --color-bg-white: #ffffff;
    --color-border: #dee2e6;
    --border-radius: 0.375rem; /* 6px */
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

/* ===================================================================
   2. গ্লোবাল রিসেট ও বেস স্টাইল
   =================================================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    background-color: var(--color-bg);
    color: var(--color-text);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ===================================================================
   3. টাইপোগ্রাফি
   =================================================================== */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
    line-height: 1.3;
    font-weight: 600;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.2rem; }

p {
    margin-bottom: 1rem;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #0a58ca;
    text-decoration: underline;
}

hr {
    border: 0;
    border-top: 1px solid var(--color-border);
    margin: 1.5rem 0;
}

/* ===================================================================
   4. ইউটিলিটি ক্লাস (Container, Buttons, Forms)
   =================================================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
}

/* বাটন স্টাইল */
.btn {
    display: inline-block;
    padding: 0.75rem 1.25rem;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none !important;
}

.btn-primary { background-color: var(--color-primary); color: white; }
.btn-primary:hover { background-color: #0b5ed7; }

.btn-secondary { background-color: #6c757d; color: white; }
.btn-secondary:hover { background-color: #5a6268; }

.btn-danger { background-color: var(--color-danger); color: white; }
.btn-danger:hover { background-color: #bb2d3b; }

.btn-success { background-color: var(--color-secondary); color: white; }
.btn-success:hover { background-color: #157347; }

.btn-sm { padding: 0.25rem 0.5rem; font-size: 0.875rem; }
.btn-large { padding: 1rem 1.5rem; font-size: 1.25rem; }

/* ফর্ম স্টাইল */
.calc-form, .config-form, .forum-post-box {
    background-color: #fdfdfd;
    padding: 1.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    margin-top: 1rem;
}

.calc-form label {
    display: block;
    font-weight: 500;
    margin-top: 1rem;
    margin-bottom: 0.5rem;
}

.calc-form input[type="text"],
.calc-form input[type="number"],
.calc-form input[type="email"],
.calc-form input[type="password"],
.calc-form select,
.calc-form textarea {
    width: 100%;
    padding: 0.75rem;
    font-size: 1rem;
    font-family: inherit;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
}

.calc-form .btn { margin-top: 1.5rem; }

/* ===================================================================
   5. গ্লোবাল হেডার (header.php)
   =================================================================== */
#global-header {
    background-color: var(--color-bg-white);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.03);
}

#global-header .container {
    display: flex;
    flex-wrap: wrap; /* মোবাইলের জন্য */
    justify-content: space-between;
    align-items: center;
}

#global-header .logo h1 {
    margin: 0;
    font-size: 1.75rem;
    color: var(--color-primary);
    font-weight: 700;
}

#public-menu ul {
    list-style: none;
    display: flex;
    flex-direction: column; /* মোবাইলের জন্য ডিফল্ট */
    width: 100%;
    margin-top: 1rem;
}

#public-menu li {
    position: relative;
    width: 100%;
}

#public-menu a {
    padding: 0.75rem 1rem;
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    display: block;
}

#public-menu a:hover,
#public-menu a.active {
    color: var(--color-primary);
    background-color: var(--color-bg);
    border-radius: var(--border-radius);
}

/* সাবমেনু (ড্রপডাউন) */
#public-menu .submenu {
    display: none;
    background-color: white;
    min-width: 180px;
    z-index: 100;
    padding-left: 1rem; /* মোবাইলে ইন্ডেন্টেশন */
}

#public-menu li:hover .submenu {
    display: block;
    position: static; /* মোবাইলে স্ট্যাটিক */
}

#public-menu .submenu a {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
}

.shop-link {
    font-weight: bold;
    color: var(--color-secondary) !important;
}
.shop-link:hover {
    color: #13653f !important;
}

/* ===================================================================
   6. ইউজার রোল সুইচিং (header.php)
   =================================================================== */
#role-switching {
    display: grid;
    grid-template-columns: 1fr 1fr; /* মোবাইলে ২ কলাম */
    gap: 0.5rem;
    margin-top: 1rem;
    width: 100%;
}

.btn-role {
    font-size: 0.875rem;
    padding: 0.5rem 0.75rem;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
}

.btn-role:hover {
    background-color: #e9ecef;
    text-decoration: none;
}

/* ===================================================================
   7. পাবলিক কন্টেন্ট (.content-area)
   =================================================================== */
.content-area {
    background-color: var(--color-bg-white);
    padding: 1.5rem;
    margin: 1.5rem auto;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    max-width: 1200px; /* কন্টেইনারের সাথে মিল রাখা */
}

/* ===================================================================
   8. পাবলিক কার্ড (Advice, Disease, Species)
   =================================================================== */
.advice-container,
.disease-container,
.species-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.advice-card,
.disease-card,
.species-card {
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.advice-card:hover,
.disease-card:hover,
.species-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}

.advice-card img,
.disease-card img,
.species-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid var(--color-border);
}

.advice-card h3, .disease-card h3, .species-card h3,
.advice-card p, .disease-card p, .species-card p,
.advice-card .btn, .disease-card .btn, .species-card .btn {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    margin-bottom: 1rem;
}

.advice-card h3, .disease-card h3, .species-card h3 {
    padding-top: 1.5rem;
    color: var(--color-primary);
}

.advice-card .btn, .disease-card .btn, .species-card .btn {
    margin-top: auto; /* বাটনকে কার্ডের নিচে রাখে */
    margin-bottom: 1.5rem;
}

/* ===================================================================
   9. ড্যাশবোর্ড লেআউট (Sidebar & Main Content)
   =================================================================== */
.dashboard-container {
    display: flex;
    flex-direction: column; /* মোবাইলে কলাম লেআউট */
    min-height: calc(100vh - 120px); /* হেডার/ফুটার উচ্চতা বাদ দিয়ে */
}

.sidebar {
    width: 100%;
    background-color: var(--color-dark);
    color: #ccc;
    padding: 1.5rem;
}

.sidebar h3 {
    color: white;
    font-size: 1.2rem;
    border-bottom: 1px solid #444;
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav a {
    display: block;
    color: #ccc;
    text-decoration: none;
    padding: 0.75rem 0.5rem;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.sidebar-nav a:hover,
.sidebar-nav li.active > a {
    background-color: var(--color-primary);
    color: white;
    text-decoration: none;
}

.main-content {
    flex: 1;
    padding: 1.5rem;
    background-color: var(--color-bg);
}

/* ===================================================================
   10. ড্যাশবোর্ড কম্পোনেন্ট (Metric Cards, Tables, Tabs)
   =================================================================== */
   
/* মেট্রিক কার্ড */
.metric-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.metric-cards .card {
    text-align: center;
}

.metric-cards .card h4 {
    color: var(--color-text-secondary);
    font-size: 1rem;
}

.metric-cards .card p {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.metric-cards .card small {
    color: var(--color-text-secondary);
}

/* ডেটা টেবিল */
.data-table-container {
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 1rem;
    overflow-x: auto; /* মোবাইলে টেবিল স্ক্রল করার জন্য */
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

.data-table th,
.data-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap; /* টেবিল ডেটা এক লাইনে রাখা */
}

.data-table th {
    background-color: var(--color-bg);
    font-weight: 600;
}

.data-table tbody tr:hover {
    background-color: #fdfdfd;
}

/* স্ট্যাটাস ব্যাজ */
.status-active, .status-ok { color: var(--color-secondary); font-weight: bold; }
.status-pending { color: var(--color-warning); font-weight: bold; }
.status-inactive, .status-danger { color: var(--color-danger); font-weight: bold; }

/* ট্যাব (ক্যালকুলেটর ও অ্যাডমিন) */
.calculator-tabs, .admin-master-data-tabs {
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 1.5rem;
    display: flex;
    flex-wrap: wrap;
}

.tab-link {
    background-color: transparent;
    border: none;
    padding: 0.75rem 1.25rem;
    cursor: pointer;
    font-size: 1rem;
    margin-bottom: -1px; /* বর্ডারের উপর ওভারল্যাপ */
    border-bottom: 3px solid transparent;
}

.tab-link.active {
    font-weight: 600;
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.calc-content, .master-data-content {
    display: none; /* JS দিয়ে নিয়ন্ত্রণ করা হবে */
}

/* ===================================================================
   11. ফোরাম স্টাইল (forum.php)
   =================================================================== */
.topic-item {
    border-bottom: 1px solid var(--color-border);
    padding: 1.5rem 0;
}
.topic-item:last-child {
    border-bottom: none;
}
.topic-item h4 {
    margin-bottom: 0.5rem;
}
.topic-item h4 a {
    font-size: 1.25rem;
    text-decoration: none;
}
.topic-item p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin: 0;
}

/* ===================================================================
   12. গ্লোবাল ফুটার (footer.php)
   =================================================================== */
#global-footer {
    background-color: var(--color-dark);
    color: #ccc;
    padding: 2rem 1rem;
    text-align: center;
    margin-top: 2rem;
}

#global-footer p {
    margin-bottom: 0.5rem;
}

/* ===================================================================
   13. রেসপন্সিভ মিডিয়া কোয়েরি
   =================================================================== */

/* ট্যাবলেট (Medium devices, 768px and up) */
@media (min-width: 768px) {
    #global-header .container {
        flex-wrap: nowrap;
    }

    #public-menu ul {
        flex-direction: row;
        width: auto;
        margin-top: 0;
    }

    #public-menu li {
        width: auto;
    }

    #public-menu a {
        border-radius: 0;
    }

    #public-menu .submenu {
        position: absolute;
        top: 100%;
        left: 0;
        border: 1px solid var(--color-border);
        border-radius: var(--border-radius);
        box-shadow: var(--box-shadow);
        padding-left: 0;
    }

    #public-menu .submenu a {
        padding: 0.75rem 1rem;
    }
    
    #role-switching {
        width: auto;
        margin-top: 0;
        grid-template-columns: repeat(5, auto); /* সব বাটন এক লাইনে */
    }

    .btn-role {
        flex-grow: 0;
    }
    
    .content-area {
        padding: 2rem;
    }
}

/* ডেস্কটপ (Large devices, 992px and up) */
@media (min-width: 992px) {
    .dashboard-container {
        flex-direction: row; /* সাইডবার এবং কন্টেন্ট পাশাপাশি */
    }

    .sidebar {
        width: 250px;
        height: auto; /* কন্টেন্টের সাথে মানানসই */
    }

    .main-content {
        padding: 2rem;
    }
}