/*
=====================================================
  STYLE.CSS - SISTEM REKOMENDASI JURUSAN
  Versi Final dengan Tema Akademik (Teal Green)
=====================================================
  1. Global, Variables & Font
  2. Desain Halaman Login
  3. Layout Aplikasi Utama
  4. Sidebar
  5. Header & Profile Dropdown
  6. Dashboard Cards
  7. Komponen UI (Tabel, Form, Card, dll)
  8. Halaman Demo Perhitungan
  9. Animasi & Efek
  10. Responsive Design
*/

/* 1. GLOBAL, VARIABLES & FONT */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    /* Palet Warna Baru - Tema Akademik & Pertumbuhan (Teal Green) */
    --primary-color: #0D9488;   /* Teal yang kaya dan profesional */
    --primary-dark: #0F766E;    /* Teal lebih gelap untuk hover */
    --primary-light: #F0FDFA;   /* Teal sangat terang untuk background hover */
    
    /* Warna Netral */
    --bg-main: #F8FAFC;         /* Latar belakang utama (off-white) */
    --bg-surface: #FFFFFF;      /* Latar belakang untuk kartu, sidebar */
    --border-color: #E2E8F0;
    
    /* Warna Teks */
    --text-primary: #1E293B;    /* Abu-abu gelap (bukan hitam pekat) */
    --text-secondary: #64748B;  /* Abu-abu untuk teks pendukung */
    --text-on-primary: #FFFFFF;

    /* Warna Aksen & Status */
    --success: #16A34A;         /* Hijau cerah */
    --danger: #DC2626;          /* Merah yang lebih modern */
    --warning: #F59E0B;         /* Kuning amber */
    --info: #2563EB;            /* Biru sebagai aksen sekunder */

    /* Bayangan (Shadows) */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

    /* Lainnya */
    --default-transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
}

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

html { 
    scroll-behavior: smooth; 
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a {
    color: var(--primary-color);
    text-decoration: none;
}

a:hover {
    color: var(--primary-dark);
}

/* 2. DESAIN HALAMAN LOGIN */
body.login-body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background-color: #042f2e; /* Latar belakang hijau sangat gelap */
    background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,.05) 1px, transparent 0);
    background-size: 20px 20px;
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 40px;
    background: var(--bg-surface);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 0.7s ease-out forwards;
}

.login-header {
    text-align: center;
    margin-bottom: 35px;
}

.login-header i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 15px;
    display: inline-block;
}

.login-header h2 { font-size: 28px; font-weight: 700; margin-bottom: 5px; }
.login-header p { color: var(--text-secondary); font-size: 16px; }

.login-form .form-group { margin-bottom: 25px; }
.login-form .form-group label {
    font-weight: 600;
    margin-bottom: 8px;
    display: block;
}

.login-form .form-control {
    width: 100%;
    padding: 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    font-size: 16px;
    transition: var(--default-transition);
}

.login-form .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
    outline: none;
}

.login-form .btn-primary {
    width: 100%;
    padding: 14px;
    font-size: 16px;
    font-weight: 700;
    border-radius: var(--border-radius-md);
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transition: var(--default-transition);
}

.login-form .btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
}

/* 3. LAYOUT APLIKASI UTAMA */
.app-wrapper { 
    display: flex; 
    width: 100vw; 
    height: 100vh; 
    overflow: hidden; 
}

.main-container { 
    flex-grow: 1; 
    display: flex; 
    flex-direction: column; 
    overflow-y: auto; 
}

.content-area { 
    padding: 32px; 
}

/* 4. SIDEBAR */
.sidebar {
    width: 260px;
    background-color: var(--bg-surface);
    display: flex;
    flex-direction: column;
    padding: 16px;
    border-right: 1px solid var(--border-color);
    transition: transform 0.4s ease;
    flex-shrink: 0;
    overflow-y: auto;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    margin-bottom: 24px;
}

.sidebar-header i {
    color: var(--primary-color); /* Ubah warna ikon header */
}

.sidebar-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.sidebar-nav { 
    flex-grow: 1; 
}

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

.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    margin-bottom: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--border-radius-md);
    font-weight: 500;
    transition: var(--default-transition);
}

.sidebar-nav a:hover {
    background-color: var(--primary-light);
    color: var(--primary-dark);
}

.sidebar-nav a.active {
    background-color: var(--primary-color);
    color: var(--text-on-primary);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.sidebar-nav a i {
    width: 24px;
    margin-right: 16px;
    font-size: 18px;
    text-align: center;
}

.sidebar-footer {
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.sidebar-footer a { 
    color: var(--danger); 
    font-weight: 600; 
}

.sidebar-footer a:hover { 
    background-color: rgba(220, 38, 38, 0.05); /* Merah muda sangat terang */
}

/* 5. HEADER & PROFILE DROPDOWN */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 32px;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 10;
}

.header-title h2 {
    font-size: 22px;
    font-weight: 600;
}

/* 6. DASHBOARD CARDS */
.card.border-left-primary { border-left: 4px solid var(--primary-color); }
.card.border-left-success { border-left: 4px solid var(--success); }
.card.border-left-warning { border-left: 4px solid var(--warning); }

.text-primary { color: var(--primary-color) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }

/* 7. KOMPONEN UI (TABEL, FORM, CARD, DLL) */
.card {
    background-color: var(--bg-surface);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    margin-bottom: 25px;
    box-shadow: var(--shadow-sm);
}

.card-header { 
    padding: 1rem 1.5rem; 
    border-bottom: 1px solid var(--border-color); 
    font-weight: 600; 
    background-color: #F8FAFC;
    border-top-left-radius: var(--border-radius-lg);
    border-top-right-radius: var(--border-radius-lg);
}

.card-body { 
    padding: 1.5rem; 
}

.table {
    border-color: var(--border-color);
}
.table thead {
    background-color: #F8FAFC;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.5px;
    font-weight: 600;
}

/* 8. HALAMAN DEMO PERHITUNGAN (BARU) */
.analysis-section {
    margin-bottom: 2rem;
}

.scrollable-table {
    max-height: 300px;
    overflow-y: auto;
}

.math-formula {
    background-color: #e9ecef;
    padding: 1rem;
    border-radius: .25rem;
    margin: 1rem 0;
    font-size: 1.1rem;
    overflow-x: auto;
}

.bar-chart {
    padding: 1rem;
    border: 1px solid #dee2e6;
    border-radius: .25rem;
}

.bar-item {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
}

.bar-label {
    width: 250px;
    text-align: right;
    padding-right: 10px;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.bar {
    height: 24px;
    background-color: var(--primary-color); /* Ubah warna bar chart */
    color: white;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 8px;
    font-size: 0.8rem;
    border-radius: 0 .25rem .25rem 0;
    white-space: nowrap;
}

/* 9. ANIMASI & EFEK */
@keyframes fadeInUp { 
    from { opacity: 0; transform: translateY(20px); } 
    to { opacity: 1; transform: translateY(0); } 
}

/* 10. RESPONSIVE DESIGN */
@media (max-width: 992px) {
    .sidebar { 
        position: fixed; 
        left: 0; 
        top: 0; 
        height: 100%; 
        transform: translateX(-100%); 
        z-index: 1000; 
        box-shadow: var(--shadow-lg); 
    }
    .sidebar.show { 
        transform: translateX(0); 
    }
}
@media (max-width: 768px) {
    .content-area, .app-header { 
        padding: 16px; 
    }
}