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

html, body {
    width: 100%;
    min-height: 100vh;
    overflow-x: hidden;
    scroll-behavior: smooth;
    margin: 0;
}

/* Custom Scrollbar Styles for the entire page & elements */
*::-webkit-scrollbar {
    width: 10px !important;
    height: 10px !important;
}

*::-webkit-scrollbar-track {
    background: transparent !important;
}

*::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.35) !important;
    border-radius: 9999px !important;
    border: 2px solid transparent !important;
    background-clip: padding-box !important;
}

*::-webkit-scrollbar-thumb:hover {
    background: rgba(99, 102, 241, 0.55) !important;
}

*::-webkit-scrollbar-corner {
    background: transparent !important;
}

*::-webkit-scrollbar-button {
    display: none !important;
    width: 0 !important;
    height: 0 !important;
}

html {
    scrollbar-width: thin;
    scrollbar-color: rgba(148, 163, 184, 0.35) transparent;
}

/* Light Notepad-Grid Theme */
body {
    background-color: #f8fafc;
    background-image: 
        linear-gradient(rgba(148, 163, 184, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, 0.06) 1px, transparent 1px);
    background-size: 20px 20px;
    background-position: center;
    background-attachment: fixed;
    color: #0f172a;
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main, .main-container, .auth-gated-container, .login-main, .signup-main {
    flex-grow: 1;
    width: 100%;
    box-sizing: border-box;
    min-height: 100vh;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
    padding: 24px 0 20px 0;
}

h1 {
    text-align: center;
    margin-top: 0;
    margin-bottom: 10px;
    color: #0f172a;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    background: linear-gradient(135deg, #0f172a 30%, #4f46e5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Filter Container & Interactive Elements */
.filter-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 24px;
}

/* Filter Bar */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    padding: 24px;
    background: rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(148, 163, 184, 0.15);
    border-radius: 16px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.04), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    position: relative;
    z-index: 100;
    width: 100%;
    box-sizing: border-box;
}

.filter-bar select {
    padding: 12px 38px 12px 18px; /* Room for custom arrow */
    font-size: 15px;
    font-weight: 500;
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 10px;
    background-color: #ffffff;
    color: #334155;
    transition: all 0.2s ease;
    cursor: pointer;
    font-family: 'Outfit', sans-serif;
    min-width: 150px;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23475569' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 14px;
}

.filter-bar select:hover {
    background-color: #f8fafc;
    border-color: rgba(99, 102, 241, 0.4);
}

.filter-bar select:focus {
    outline: none;
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    background-color: #ffffff;
}

.filter-bar select option {
    background-color: #ffffff;
    color: #0f172a;
    font-family: 'Outfit', sans-serif;
    font-size: 15px;
    padding: 10px;
}

/* Results Summary - Structured Active Filters */
#results-summary {
    display: block;
    margin: 0 auto 30px auto;
    max-width: 1000px;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(148, 163, 184, 0.15);
    border-radius: 16px;
    padding: 14px 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.01);
    box-sizing: border-box;
}

.active-filters-container {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    text-align: left;
}

.summary-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: #4f46e5;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.active-filters-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.filter-chip {
    display: inline-flex;
    align-items: center;
    background: #ffffff;
    border: 1px solid rgba(148, 163, 184, 0.15);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    color: #475569;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.01);
    font-family: 'Outfit', sans-serif;
    transition: all 0.2s ease;
}

.filter-chip:hover {
    border-color: rgba(99, 102, 241, 0.25);
    color: #0f172a;
}

.filter-chip strong {
    color: #64748b;
    font-weight: 600;
    margin-right: 4px;
}

.filter-chip.search {
    background: rgba(99, 102, 241, 0.04);
    border-color: rgba(99, 102, 241, 0.12);
    color: #4f46e5;
}

.filter-chip.search strong {
    color: #6366f1;
}

/* University Data Cards — Grid & White Glass Cards */
#data-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    grid-auto-rows: auto;
    gap: 30px;
}

.card {
    display: grid;
    grid-row: span 3;
    grid-template-rows: subgrid;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(148, 163, 184, 0.15);
    border-radius: 18px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.03), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
    transition: transform 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.35s ease, border-color 0.35s ease;
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-6px);
    border-color: rgba(99, 102, 241, 0.35);
    box-shadow: 0 20px 40px -10px rgba(99, 102, 241, 0.12);
}

.card-header {
    padding: 24px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.card-header h3 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 700;
    color: #4338ca; /* Deep Indigo */
    line-height: 1.4;
    padding-right: 65px; /* Badge space */
}

/* University Type Badge */
.card.devlet .card-header::after,
.card.vakıf .card-header::after {
    position: absolute;
    top: 50%;
    right: 24px;
    transform: translateY(-50%);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card.devlet .card-header::after {
    content: 'devlet';
    background-color: rgba(34, 197, 94, 0.08);
    border: 1px solid rgba(34, 197, 94, 0.2);
    color: #16a34a;
}

.card.vakıf .card-header::after {
    content: 'vakıf';
    background-color: rgba(234, 179, 8, 0.08);
    border: 1px solid rgba(234, 179, 8, 0.2);
    color: #b45309;
}

.card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.card-body p {
    margin: 0;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.label {
    font-size: 0.85rem;
    color: #64748b;
    font-weight: 500;
    flex-shrink: 0;
    margin-right: 12px;
}

.value {
    font-size: 0.95rem;
    font-weight: 600;
    color: #0f172a;
    text-align: right;
    word-break: break-word;
}

.card-footer {
    padding: 20px 24px;
    background-color: rgba(248, 250, 252, 0.6);
    border-top: 1px solid rgba(148, 163, 184, 0.12);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.card-info p {
    margin: 0;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 6px;
    color: #334155;
}

.card-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.graph-button {
    background: rgba(99, 102, 241, 0.06);
    border: 1px solid rgba(99, 102, 241, 0.15);
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #4f46e5;
    font-size: 1.1rem;
}

.graph-button:hover {
    background-color: rgba(99, 102, 241, 0.12);
    border-color: rgba(99, 102, 241, 0.3);
    color: #6366f1;
    transform: scale(1.08);
}

.graph-button:active {
    transform: scale(0.95);
}

.review-button {
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.06);
    cursor: pointer;
    padding: 6px 12px;
    border-radius: 8px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 6px;
    color: #334155;
}

.review-button img {
    width: 16px;
    height: 16px;
    filter: invert(0.1);
}

.review-button:hover {
    background-color: rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 0, 0, 0.12);
    transform: scale(1.04);
}

/* Spinner Loader */
.loader {
    border: 4px solid rgba(99, 102, 241, 0.1);
    border-top: 4px solid #6366f1;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    animation: spin 1s linear infinite;
    margin: 40px auto;
    display: none;
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.1);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Overrides */
@media (max-width: 768px) {
    .container {
        width: 92%;
        padding: 24px 0 20px 0;
    }

    h1 {
        font-size: 2.2rem;
    }

    .filter-bar {
        flex-direction: column;
        gap: 12px;
        padding: 18px;
        width: 100%;
        box-sizing: border-box;
    }

    .filter-bar select,
    .filter-bar .custom-dropdown,
    .filter-bar .range-selector {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    .filter-bar .range-selector {
        display: flex !important;
        flex-direction: column !important;
        align-items: stretch !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 12px 18px !important;
        border-radius: 10px !important;
        border: 1px solid rgba(148, 163, 184, 0.2) !important;
        background-color: #ffffff !important;
        gap: 8px !important;
    }

    .filter-bar .range-selector #label-rank-setting {
        margin: 0 !important;
        font-size: 15px !important;
        font-weight: 500 !important;
        color: #334155 !important;
        white-space: nowrap !important;
    }

    .filter-bar .range-selector #rank-setting {
        display: flex !important;
        align-items: center !important;
        width: 100% !important;
        gap: 8px !important;
    }

    .filter-bar .range-selector #rank-setting > div {
        flex: 1 !important;
        min-width: 0 !important;
    }

    .filter-bar .range-selector #rank-setting input {
        width: 100% !important;
        box-sizing: border-box !important;
        padding: 8px 10px !important;
    }

    #data-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* Table styling (THE rankings list) */
.the-rankings-table {
    width: 100%;
    margin-top: 25px;
    background-color: rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(16px);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(148, 163, 184, 0.15);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.03), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
}

.table-header {
    display: grid;
    grid-template-columns: 10% 30% repeat(6, 10%);
    background: linear-gradient(135deg, #4f46e5 0%, #6366f1 100%);
    color: #ffffff;
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    padding: 16px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.table-row {
    display: grid;
    grid-template-columns: 10% 30% repeat(6, 10%);
    background-color: transparent;
    transition: background-color 0.25s ease, transform 0.25s ease;
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

.table-row:nth-child(even) {
    background-color: rgba(0, 0, 0, 0.01);
}

.table-row:hover {
    background-color: rgba(99, 102, 241, 0.04);
    transform: translateX(4px);
}

.table-cell {
    padding: 16px 20px;
    text-align: left;
    word-break: break-word;
    color: #334155;
    font-size: 0.95rem;
    font-weight: 500;
}

@media (max-width: 1100px) {
    .table-header,
    .table-row {
        grid-template-columns: 25% 75%;
    }

    .table-header .header-cell:nth-child(n+3),
    .table-row .table-cell:nth-child(n+3) {
        display: none;
    }
}

/* ─── Custom Dropdown ─── */

.custom-dropdown {
    position: relative;
    width: 100%;
    box-sizing: border-box;
    min-width: 0;
}

.custom-dropdown-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    font-family: 'Outfit', sans-serif;
    font-size: 15px;
    font-weight: 500;
    padding: 12px 18px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 10px;
    background-color: #ffffff;
    color: #334155;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
    box-sizing: border-box;
    height: auto;
    min-width: 0;
}

.custom-dropdown-btn:hover {
    background-color: #f8fafc;
    border-color: rgba(99, 102, 241, 0.4);
}

.custom-dropdown.open .custom-dropdown-btn {
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    background-color: #ffffff;
}

.dropdown-selected-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex-grow: 1;
    min-width: 0;
}

.dropdown-chevron {
    width: 14px;
    height: 14px;
    color: #475569;
    transition: transform 0.2s ease;
    flex-shrink: 0;
    margin-left: 8px;
}

.custom-dropdown.open .dropdown-chevron {
    transform: rotate(180deg);
}

.custom-dropdown-menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    background: #ffffff;
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 10px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.08);
    z-index: 1000;
    max-height: 250px;
    overflow-y: auto;
    opacity: 0;
    transform: translateY(-8px) scale(0.98);
    pointer-events: none;
    transition: opacity 0.15s ease, transform 0.15s ease;
}

.custom-dropdown.open .custom-dropdown-menu {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.custom-dropdown-menu::-webkit-scrollbar {
    width: 6px;
}

.custom-dropdown-menu::-webkit-scrollbar-track {
    background: transparent;
}

.custom-dropdown-menu::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}

.custom-dropdown-menu::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

.custom-dropdown-item {
    padding: 10px 16px;
    cursor: pointer;
    font-size: 14px;
    color: #475569;
    transition: background 0.15s, color 0.15s;
    font-weight: 500;
}

.custom-dropdown-item:hover {
    background-color: rgba(99, 102, 241, 0.05);
    color: #4f46e5;
}

.custom-dropdown-item.selected {
    background-color: rgba(99, 102, 241, 0.08);
    color: #4f46e5;
    font-weight: 600;
}

/* Go Back Button */
.back-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    font-size: 0.9rem;
    font-weight: 600;
    color: #475569;
    background-color: #ffffff;
    border: 1px solid rgba(148, 163, 184, 0.25);
    border-radius: 30px;
    text-decoration: none;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
    margin-bottom: 20px;
}

.back-button:hover {
    color: #4f46e5;
    border-color: rgba(99, 102, 241, 0.4);
    background-color: #f8fafc;
    transform: translateX(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.08);
}

.back-button i {
    font-size: 0.8rem;
    transition: transform 0.2s ease;
}