:root {
    --alc-bg: #f5f7fa;
    --alc-surface: #ffffff;
    --alc-surface-soft: #f9fbfd;
    --alc-border: #d7dee8;
    --alc-border-strong: #b8c3d2;
    --alc-text: #172033;
    --alc-muted: #64748b;
    --alc-primary: #163b6d;
    --alc-primary-hover: #102f58;
    --alc-accent: #2f6f73;
    --alc-danger: #b42318;
    --alc-shadow: 0 10px 28px rgba(15, 23, 42, 0.08);
}

html {
    background: var(--alc-bg);
}

body {
    background: var(--alc-bg);
    color: var(--alc-text);
    letter-spacing: 0;
}

.container,
.container-fluid {
    max-width: 1380px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 16px;
    padding-right: 16px;
}

.navbar,
.topbar {
    background: var(--alc-surface) !important;
    border: 1px solid var(--alc-border);
    border-radius: 8px;
    margin: 16px 0 18px;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
}

.navbar-brand {
    color: var(--alc-text) !important;
    font-weight: 750;
}

.nav-link,
.compact-link {
    color: var(--alc-primary) !important;
}

h1,
h2,
h3,
h4 {
    color: var(--alc-text);
    letter-spacing: 0;
}

.section,
.form-container,
.tool-panel,
.hero,
.skill-card,
.login-panel,
.content-panel {
    background: var(--alc-surface);
    border: 1px solid var(--alc-border);
    border-radius: 8px;
    box-shadow: var(--alc-shadow);
}

.section,
.form-container,
.content-panel {
    padding: 18px;
    margin-bottom: 18px;
}

.button-container {
    display: grid !important;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 10px;
    align-items: stretch;
    margin: 0 0 16px !important;
}

.button-container a,
.button-container button,
.quick-link,
.large-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: auto !important;
    height: auto !important;
    min-height: 52px;
    padding: 12px 16px !important;
    border-radius: 8px !important;
    font-size: 1rem !important;
    font-weight: 650;
    text-align: center;
    text-decoration: none;
}

.btn:not(.btn-sm) {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 14px !important;
    border-radius: 8px !important;
    font-weight: 650;
    text-decoration: none;
}

.button-container button,
.btn-primary,
.primary-action {
    background: var(--alc-primary) !important;
    border-color: var(--alc-primary) !important;
    color: #fff !important;
}

.button-container button:hover,
.btn-primary:hover,
.primary-action:hover {
    background: var(--alc-primary-hover) !important;
    border-color: var(--alc-primary-hover) !important;
    color: #fff !important;
}

.btn-outline-primary {
    color: var(--alc-primary) !important;
    border-color: var(--alc-primary) !important;
}

.btn-outline-primary:hover {
    background: var(--alc-primary) !important;
    color: #fff !important;
}

.scrollbox {
    background: var(--alc-surface);
    border: 1px solid var(--alc-border) !important;
    border-radius: 8px;
    box-shadow: var(--alc-shadow);
    padding: 0 !important;
    overflow: auto !important;
}

.flex-container {
    background: transparent !important;
    border: 0 !important;
    padding: 0 !important;
}

#latestEntry,
#entryForm,
#table-container {
    background: var(--alc-surface);
    border: 1px solid var(--alc-border);
    border-radius: 8px;
    box-shadow: var(--alc-shadow);
    padding: 16px;
}

#latestEntry p {
    margin-bottom: 0.35rem;
    color: var(--alc-muted);
}

#entryForm form,
#removeItemForm,
#databaseForm {
    max-width: 100% !important;
}

table {
    width: 100%;
    margin-bottom: 0;
    border-collapse: separate !important;
    border-spacing: 0;
    background: var(--alc-surface);
}

th {
    position: sticky;
    top: 0;
    z-index: 2;
    background: #edf2f7 !important;
    color: #26364a;
    font-size: 0.88rem;
    font-weight: 750;
    white-space: nowrap;
}

td,
th {
    border-color: #e2e8f0 !important;
    vertical-align: middle;
    padding: 0.55rem 0.7rem !important;
}

tbody tr:nth-child(even) {
    background: #fbfdff;
}

tbody tr:hover {
    background: #eef6f7;
}

tbody tr.table-window-match {
    background: #fff3bf;
    box-shadow: inset 3px 0 0 #d18b00;
}

.form-control,
.form-select {
    border-color: var(--alc-border-strong);
    border-radius: 8px;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--alc-accent);
    box-shadow: 0 0 0 0.2rem rgba(47, 111, 115, 0.16);
}

.alert {
    border-radius: 8px;
}

pre {
    background: #0f172a;
    color: #e5eefb;
    border-radius: 8px;
    padding: 16px;
    overflow: auto;
}

.footer,
footer {
    color: var(--alc-muted);
    font-size: 0.9rem;
    padding: 12px 0 24px;
}

.muted-small,
.form-text,
.text-muted {
    color: var(--alc-muted) !important;
}

@media (max-width: 768px) {
    .container,
    .container-fluid {
        padding-left: 12px;
        padding-right: 12px;
    }

    .navbar,
    .topbar {
        margin-top: 10px;
    }

    .quick-link {
        min-height: 58px;
    }
}