:root {
    /* Colors - Azure Horizon Palette */
    --primary: #0057bd;
    --primary-container: #e0eaff;
    --on-primary: #ffffff;
    --surface: #f5f7f9;
    --surface-container-low: #eef1f3;
    --surface-container-lowest: #ffffff;
    --on-surface: #2c2f31;
    --on-surface-variant: #666e75;
    --outline-variant: rgba(0, 87, 189, 0.1);
    
    /* Typography */
    --font-main: 'Inter', -apple-system, system-ui, sans-serif;
    --font-display: 'Manrope', sans-serif;
    
    /* Spacing & Radius */
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --shadow-ambient: 0px 20px 40px rgba(44, 47, 49, 0.06);
}

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

body {
    background-color: var(--surface);
    color: var(--on-surface);
    font-family: var(--font-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .display {
    font-family: var(--font-display);
    letter-spacing: -0.02em;
    font-weight: 700;
}

/* Base Components - No Line Philosophy */
.card {
    background: var(--surface-container-lowest);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-ambient);
    padding: 2.5rem;
}

.input-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--on-surface-variant);
    margin-bottom: 0.5rem;
}

input {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--surface-container-low);
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    color: var(--on-surface);
    transition: all 0.2s ease;
}

input:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(0, 87, 189, 0.15);
    background: var(--surface-container-lowest);
}

select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--surface-container-low);
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    color: var(--on-surface);
    transition: all 0.2s ease;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23595c5e' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
    cursor: pointer;
}

select:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(0, 87, 189, 0.15);
    background-color: var(--surface-container-lowest);
}

.btn-primary {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary), #3a53b7);
    color: var(--on-primary);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.btn-primary:hover {
    opacity: 0.95;
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-ghost {
    background: transparent;
    color: var(--primary);
    border: none;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    padding: 0.5rem;
}

.btn-ghost:hover {
    background: var(--surface-container-low);
    border-radius: 4px;
}

/* Global Busy State / Loading Components */
.btn-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}

.btn-loading {
    color: var(--on-primary) !important;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

.btn-ghost .spinner {
    border: 3px solid rgba(0, 87, 189, 0.2);
    border-top-color: var(--primary);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Centralized Toast System */
.toast-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.toast {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 1.25rem 3rem;
    border-radius: 16px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.2);
    color: var(--on-surface);
    font-weight: 600;
    font-size: 1.0625rem;
    pointer-events: auto;
    opacity: 0;
    transform: scale(0.92);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    max-width: 90%;
    text-align: center;
}

.toast.visible {
    opacity: 1;
    transform: scale(1);
}

.toast.error {
    background: rgba(186, 26, 26, 0.9);
    color: white;
}

.toast.success {
    background: rgba(0, 87, 189, 0.9);
    color: white;
}


/* ── Modal ── */
.ui-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(44, 47, 49, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9000;
    opacity: 0;
    transition: opacity 0.25s ease;
    padding: 1rem;
}

.ui-modal-overlay.visible {
    opacity: 1;
}

.ui-modal-overlay.visible .ui-modal-box {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.ui-modal-box {
    background: #ffffff;
    border-radius: 1.25rem;
    box-shadow: 0 32px 80px rgba(44, 47, 49, 0.18);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(16px) scale(0.97);
    opacity: 0;
    transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1),
                opacity 0.28s ease;
}

.ui-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem 0;
}

.ui-modal-title {
    font-family: 'Manrope', sans-serif;
    font-size: 1.0625rem;
    font-weight: 800;
    color: #2c2f31;
    letter-spacing: -0.02em;
}

.ui-modal-close {
    background: none;
    border: none;
    cursor: pointer;
    color: #595c5e;
    padding: 4px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    transition: background 0.15s;
}

.ui-modal-close:hover { background: #eef1f3; }
.ui-modal-close .material-symbols-outlined { font-size: 20px; }

.ui-modal-body {
    padding: 1.25rem 1.5rem;
}

.ui-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 0 1.5rem 1.5rem;
}

.ui-modal-btn-cancel {
    padding: 0.625rem 1.25rem;
    background: #eef1f3;
    color: #595c5e;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
}

.ui-modal-btn-cancel:hover { background: #dfe3e6; }

.ui-modal-btn-confirm {
    padding: 0.625rem 1.25rem;
    background: #0057bd;
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.15s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ui-modal-btn-confirm:hover { opacity: 0.9; }
.ui-modal-btn-confirm.danger { background: #dc2626; }

/* ── Search input variant ── */
.input-search {
    display: flex;
    align-items: center;
    gap: .5rem;
    background: #ffffff;
    border-radius: var(--radius-md);
    padding: .375rem .875rem;
    box-shadow: 0 0 0 1.5px #dfe3e6;
    transition: box-shadow .15s;
    overflow: visible;
}
.input-search:focus-within {
    box-shadow: 0 0 0 3px rgba(0, 87, 189, 0.18);
}
.input-search i { color: #9ca3af; font-size: 13px; flex-shrink: 0; }
.input-search input {
    background: transparent;
    border: none;
    padding: .25rem 0;
    font-size: .875rem;
    line-height: 1.6;
    width: 200px;
    color: var(--on-surface);
    overflow: visible;
}
.input-search input:focus { outline: none; box-shadow: none; }
.input-search input::placeholder { color: #b0b7be; }

/* ── Pagination ── */
.ui-pagination {
    display: flex;
    align-items: center;
    gap: .25rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}
.ui-pg-btn {
    min-width: 32px; height: 32px;
    padding: 0 .5rem;
    border: none; border-radius: 8px;
    background: #eef1f3; color: #595c5e;
    font-size: .8125rem; font-weight: 600;
    cursor: pointer; transition: background .15s, color .15s;
    display: inline-flex; align-items: center; justify-content: center;
}
.ui-pg-btn:hover:not(.disabled):not(.active) { background: #e0eaff; color: #0057bd; }
.ui-pg-btn.active { background: #0057bd; color: #fff; cursor: default; }
.ui-pg-btn.disabled { opacity: .35; cursor: default; }
.ui-pg-dots {
    font-size: .8125rem; color: #9ca3af;
    padding: 0 .25rem; line-height: 32px;
}
.ui-pg-info {
    margin-left: .5rem;
    font-size: .75rem; color: #9ca3af;
    white-space: nowrap;
}