/* ========================================================= */
/* CSS Custom Properties & Global Styling                   */
/* ========================================================= */
:root {
    --font-family-sans: 'Poppins', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --color-primary: #2563eb; /* Blue-600 */
    --color-primary-dark: #1d4ed8; /* Blue-700 */
    --color-primary-light: #dbeafe; /* Blue-50 */
    --color-secondary: #10b981; /* Emerald-500 */
    --color-accent: #f59e0b; /* Amber-500 */
    --color-text-primary: #0f172a; /* Slate-900 */
    --color-text-secondary: #475569; /* Slate-600 */
    --color-text-muted: #94a3b8; /* Slate-400 */
    --color-bg: #f8fafc; /* Slate-50 */
    --color-card-bg: rgba(255, 255, 255, 0.95);
    --color-card-border: rgba(226, 232, 240, 0.8);

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-2xl: 1.5rem;

    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-sans);
    color: var(--color-text-primary);
    line-height: 1.6;
    background-color: var(--color-bg);
    background-image: 
        radial-gradient(at 40% 20%, rgb(59, 130, 246, 0.08) 0px, transparent 50%),
        radial-gradient(at 80% 0%, rgb(16, 185, 129, 0.06) 0px, transparent 50%),
        radial-gradient(at 0% 50%, rgb(245, 158, 11, 0.05) 0px, transparent 50%);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg);
    position: relative;
    z-index: 10;
}

.container > * {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.7s ease-out forwards;
    animation-delay: var(--delay);
}

@keyframes fadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================================= */
/* Header & Typography                                      */
/* ========================================================= */
h1 {
    font-size: clamp(2.25rem, 5vw, 3rem);
    font-weight: 700;
    text-align: center;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-2xl);
    letter-spacing: -0.025em;
    position: relative;
}

h1::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--border-radius-sm);
}

/* ========================================================= */
/* Search Filter Form                                       */
/* ========================================================= */
.search-filter {
    display: grid;
    grid-template-columns: 2fr repeat(4, 1fr) auto;
    gap: var(--spacing-md);
    align-items: center;
    background: var(--color-card-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-card-border);
    margin-bottom: var(--spacing-2xl);
}

.search-filter input[type="text"],
.search-filter select {
    width: 100%;
    padding: 0.75rem var(--spacing-md);
    border: 1px solid var(--color-card-border);
    border-radius: var(--border-radius-lg);
    font-size: 0.875rem;
    color: var(--color-text-primary);
    background-color: white;
    transition: all 0.2s ease;
    font-weight: 400;
}

.search-filter input[type="text"]:focus,
.search-filter select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
    outline: none;
}

.search-filter input[type="text"]::placeholder {
    color: var(--color-text-muted);
}

.search-filter button {
    padding: 0.75rem var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    border: none;
    border-radius: var(--border-radius-lg);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
    white-space: nowrap;
}

.search-filter button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, var(--color-primary-dark), #1e3a8a);
}

/* ========================================================= */
/* Welcome Message                                          */
/* ========================================================= */
.welcome-message {
    text-align: center;
    background: var(--color-card-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-card-border);
    margin: var(--spacing-2xl) auto;
    max-width: 600px;
}

.welcome-message h2 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

.welcome-message p {
    color: var(--color-text-secondary);
    font-size: 1rem;
    line-height: 1.7;
}

/* ========================================================= */
/* Results Grid - Compact Cards                             */
/* ========================================================= */
.results {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-lg);
    max-height: calc(2 * (280px + var(--spacing-lg)));
    overflow: hidden;
}

.jurnal-card {
    background: var(--color-card-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-card-border);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    height: 280px;
    overflow: hidden;
    position: relative;
}

.jurnal-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-light);
}

.jurnal-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.jurnal-card:hover::before {
    opacity: 1;
}

.jurnal-card h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.8rem;
}

.jurnal-card p {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.375rem;
    line-height: 1.4;
}

.jurnal-card strong {
    color: var(--color-text-primary);
    font-weight: 500;
}

/* ========================================================= */
/* Compact Badges                                           */
/* ========================================================= */
.badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-top: 0.375rem;
    margin-bottom: var(--spacing-sm);
    min-height: 2rem;
    align-items: flex-start;
}

.badge {
    display: inline-block;
    background: var(--color-secondary);
    color: white;
    padding: 0.2em 0.5em;
    border-radius: 9999px;
    font-size: 0.65rem;
    font-weight: 500;
    text-transform: capitalize;
    letter-spacing: 0.025em;
    line-height: 1.2;
}

/* ========================================================= */
/* Modern Button Group                                      */
/* ========================================================= */
.button-group {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: auto;
}

/* Button "Lihat Detail" - Modern Style */
.visit-link {
    flex: 1;
    padding: 0.625rem var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    border: none;
    border-radius: var(--border-radius-lg);
    font-size: 0.75rem;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    line-height: 1.2;
}

.visit-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.visit-link:hover::before {
    left: 100%;
}

.visit-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--color-primary-dark), #1e3a8a);
}

.visit-link:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

/* Button "Kunjungi Jurnal" - Outline Style yang Modern */
.btn {
    flex: 1;
    display: block;
    padding: 0.625rem var(--spacing-md);
    font-weight: 600;
    text-align: center;
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    font-size: 0.75rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    line-height: 1.2;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    position: relative;
    overflow: hidden;
}

.btn-outline {
    background: rgba(37, 99, 235, 0.05);
    color: var(--color-primary);
    border: 1.5px solid var(--color-primary);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.btn-outline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: var(--color-primary);
    transition: width 0.3s ease;
    z-index: -1;
}

.btn-outline:hover::before {
    width: 100%;
}

.btn-outline:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-dark);
}

.btn-outline:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

/* ========================================================= */
/* Pagination - Modern Style                                */
/* ========================================================= */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: var(--spacing-2xl);
}

.page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    height: 2.5rem;
    padding: 0 0.75rem;
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    background: white;
    border: 1px solid var(--color-card-border);
}

.page-link.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.page-link:not(.active):hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.no-result {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    margin-top: var(--spacing-xl);
    padding: var(--spacing-2xl);
    background: var(--color-card-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-card-border);
}

/* ========================================================= */
/* Responsive Design                                        */
/* ========================================================= */
@media (max-width: 1200px) {
    .results {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 1024px) {
    .search-filter {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .results {
        grid-template-columns: repeat(3, 1fr);
        max-height: calc(3 * (280px + var(--spacing-lg)));
    }
}

@media (max-width: 768px) {
    .container {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    h1 {
        font-size: 1.875rem;
        margin-bottom: var(--spacing-lg);
    }
    
    .search-filter {
        padding: var(--spacing-lg);
    }
    
    .results {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
        max-height: calc(4 * (280px + var(--spacing-md)));
    }
    
    .jurnal-card {
        padding: var(--spacing-md);
    }
    
    .welcome-message {
        padding: var(--spacing-lg);
        margin: var(--spacing-lg) auto;
    }
    
    .welcome-message h2 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .results {
        grid-template-columns: 1fr;
        max-height: calc(6 * (280px + var(--spacing-md)));
    }
    
    .jurnal-card {
        height: auto;
        min-height: 280px;
    }
    
    .pagination {
        gap: 0.25rem;
    }
    
    .page-link {
        min-width: 2rem;
        height: 2rem;
        font-size: 0.75rem;
    }

    /* Mobile button adjustments */
    .button-group {
        flex-direction: column;
        gap: 0.375rem;
    }

    .visit-link,
    .btn-outline {
        font-size: 0.7rem;
        padding: 0.5rem var(--spacing-sm);
    }
}

/* ========================================================= */
/* Peringkat Badge dengan Warna Khusus                     */
/* ========================================================= */
.peringkat-badge {
    display: inline-block;
    padding: 0.3em 0.75em;
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.025em;
    text-transform: uppercase;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.peringkat-s1 {
    background: linear-gradient(135deg, #dc2626, #ef4444);
    color: white;
}

.peringkat-s2 {
    background: linear-gradient(135deg, #ea580c, #f97316);
    color: white;
}

.peringkat-s3 {
    background: linear-gradient(135deg, #d97706, #f59e0b);
    color: white;
}

.peringkat-s4 {
    background: linear-gradient(135deg, #16a34a, #22c55e);
    color: white;
}

.peringkat-s5 {
    background: linear-gradient(135deg, #0891b2, #06b6d4);
    color: white;
}

.peringkat-s6 {
    background: linear-gradient(135deg, #7c3aed, #8b5cf6);
    color: white;
}

/* ========================================================= */
/* Modern Modal Design - Glass Effect                       */
/* ========================================================= */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-lg);
    opacity: 1;
    visibility: visible;
    transition: all 0.3s ease;
}

.modal.hidden {
    opacity: 0;
    visibility: hidden;
}

.modal-content {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-2xl);
    width: 100%;
    max-width: 700px;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 
        0 25px 50px -12px rgba(0, 0, 0, 0.25),
        0 0 0 1px rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(226, 232, 240, 0.3);
    transform: scale(1);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal.hidden .modal-content {
    transform: scale(0.95);
}

.close-button {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 2.5rem;
    height: 2.5rem;
    border: none;
    background: rgba(248, 250, 252, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(226, 232, 240, 0.5);
}

.close-button:hover {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
    transform: rotate(90deg);
    box-shadow: var(--shadow-md);
}

.close-button:active {
    transform: rotate(90deg) scale(0.95);
}

/* Modal content styling */
#modal-body {
    color: var(--color-text-primary);
    line-height: 1.6;
}

#modal-body h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    padding-right: 3rem;
}

#modal-body p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

#modal-body strong {
    color: var(--color-text-primary);
    font-weight: 600;
}

/* Modal responsive */
@media (max-width: 768px) {
    .modal {
        padding: var(--spacing-md);
    }
    
    .modal-content {
        padding: var(--spacing-lg);
        border-radius: var(--border-radius-xl);
        max-height: 90vh;
    }
    
    .close-button {
        top: var(--spacing-md);
        right: var(--spacing-md);
        width: 2rem;
        height: 2rem;
        font-size: 1rem;
    }
    
    #modal-body h2 {
        font-size: 1.25rem;
        padding-right: 2.5rem;
    }
}

/* Smooth scrollbar untuk modal content */
.modal-content::-webkit-scrollbar {
    width: 6px;
}

.modal-content::-webkit-scrollbar-track {
    background: rgba(241, 245, 249, 0.5);
    border-radius: 3px;
}

.modal-content::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.5);
    border-radius: 3px;
}

.modal-content::-webkit-scrollbar-thumb:hover {
    background: rgba(100, 116, 139, 0.7);
}



.login-btn {
    position: absolute;
    top: 1.5rem;
    right: 2rem;
    font-size: 0.85rem;
    padding: 0.4rem 1rem;
    font-weight: 600;
    border-radius: 6px;
    background-color: #007bff; /* biru elegan */
    color: #fff;
    text-decoration: none;
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s ease, transform 0.2s ease;
    z-index: 1000;
}

.login-btn:hover {
    background-color: #0056b3;
    transform: translateY(-1px);
}