:root
{
    --page: #f4f7fb;
    --surface: #ffffff;
    --surface-strong: #eef4ff;
    --ink: #172033;
    --muted: #647084;
    --line: #d9e2ef;
    --primary: #1769e0;
    --primary-dark: #0f55b7;
    --success: #087f5b;
    --danger: #c92a2a;
    --shadow: 0 22px 55px rgba(23, 32, 51, 0.14);
}

*
{
    box-sizing: border-box;
}

body
{
    min-height: 100vh;
    margin: 0;
    color: var(--ink);
    background: var(--page);
    font-family: 'Inter', Arial, sans-serif;
}

button,
input
{
    font: inherit;
}

button
{
    cursor: pointer;
}

label
{
    display: block;
    margin: 0 0 7px;
    color: #334155;
    font-size: 0.88rem;
    font-weight: 700;
}

input[type="text"],
input[type="password"],
input[type="tel"],
input[type="email"],
input[type="search"]
{
    width: 100%;
    min-height: 46px;
    margin: 0 0 16px;
    padding: 11px 13px;
    color: var(--ink);
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    outline: none;
    transition: border-color 160ms ease, box-shadow 160ms ease;
}

input:focus
{
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(23, 105, 224, 0.14);
}

h1,
h2,
h3,
p
{
    margin-top: 0;
}

.auth-page
{
    background:
        linear-gradient(135deg, rgba(23, 105, 224, 0.95), rgba(14, 25, 44, 0.92)),
        url('../images/background.png') center / cover;
}

.auth-shell
{
    width: min(1120px, calc(100% - 36px));
    min-height: 100vh;
    margin: 0 auto;
    display: flex;
    align-items: center;
    padding: 34px 0;
}

.auth-panel
{
    width: 100%;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(360px, 430px);
    gap: 42px;
    align-items: center;
}

.brand-block
{
    max-width: 590px;
    color: #fff;
}

.brand-block h1
{
    margin-bottom: 18px;
    font-size: clamp(2.8rem, 6vw, 5.4rem);
    line-height: 0.98;
    letter-spacing: 0;
}

.brand-block p
{
    max-width: 510px;
    color: rgba(255, 255, 255, 0.84);
    font-size: 1.16rem;
    line-height: 1.65;
}

.eyebrow
{
    display: inline-block;
    margin-bottom: 12px;
    color: #4a6f9f;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.brand-block .eyebrow
{
    color: #b7d3ff;
}

.auth-card,
.tool-panel,
.edit-dialog
{
    background: var(--surface);
    border: 1px solid rgba(217, 226, 239, 0.9);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.auth-card
{
    padding: 34px;
}

.form-heading,
.section-heading
{
    margin-bottom: 24px;
}

.form-heading h2,
.section-heading h2,
.dialog-header h2
{
    margin-bottom: 6px;
    font-size: 1.55rem;
}

.form-heading p,
.section-heading p
{
    margin-bottom: 0;
    color: var(--muted);
    line-height: 1.5;
}

.field-grid
{
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.primary-button,
.secondary-button,
.danger-button,
.linkButton,
.icon-button
{
    min-height: 42px;
    border-radius: 8px;
    border: 1px solid transparent;
    font-weight: 800;
    transition: background 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.primary-button
{
    width: 100%;
    padding: 11px 18px;
    color: #fff;
    background: var(--primary);
}

.primary-button:hover
{
    background: var(--primary-dark);
}

.secondary-button
{
    padding: 10px 16px;
    color: var(--primary);
    background: #fff;
    border-color: #b9cff0;
}

.secondary-button:hover
{
    background: var(--surface-strong);
}

.danger-button
{
    padding: 10px 16px;
    color: var(--danger);
    background: #fff;
    border-color: #f1b6b6;
}

.danger-button:hover
{
    background: #fff0f0;
}

.compact
{
    min-height: 36px;
    padding: 8px 12px;
    font-size: 0.9rem;
}

.linkButton
{
    min-height: auto;
    padding: 0;
    color: var(--primary);
    background: transparent;
}

.linkButton:hover
{
    color: var(--primary-dark);
    text-decoration: underline;
}

.switchText
{
    margin: 22px 0 0;
    color: var(--muted);
    text-align: center;
}

.status-message
{
    display: block;
    min-height: 22px;
    margin-top: 14px;
    color: var(--danger);
    font-size: 0.94rem;
    font-weight: 700;
}

.status-message.success
{
    color: var(--success);
}

.app-page
{
    padding: 24px;
}

.app-header
{
    width: min(1180px, 100%);
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 18px 0 6px;
}

.app-header h1
{
    margin-bottom: 0;
    font-size: 2.25rem;
}

.account-actions
{
    display: flex;
    align-items: center;
    gap: 14px;
}

#userName
{
    color: var(--muted);
    font-weight: 700;
}

.workspace
{
    width: min(1180px, 100%);
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(290px, 360px) minmax(0, 1fr);
    gap: 22px;
    align-items: start;
}

.tool-panel
{
    padding: 24px;
}

.add-panel
{
    position: sticky;
    top: 24px;
}

.search-row
{
    display: grid;
    grid-template-columns: minmax(0, 1fr) 150px;
    gap: 12px;
    align-items: start;
}

.search-row .primary-button
{
    width: auto;
}

.contact-list
{
    display: grid;
    gap: 12px;
    margin-top: 18px;
}

.contact-card
{
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 18px;
    align-items: center;
    padding: 18px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.contact-card h3
{
    margin-bottom: 7px;
    font-size: 1.08rem;
}

.contact-card p
{
    margin-bottom: 5px;
    color: var(--muted);
}

.contact-card a
{
    color: var(--primary);
    font-weight: 700;
    overflow-wrap: anywhere;
}

.card-actions
{
    display: flex;
    gap: 8px;
}

.edit-dialog
{
    width: min(520px, calc(100% - 28px));
    padding: 0;
}

.edit-dialog::backdrop
{
    background: rgba(15, 23, 42, 0.45);
}

.edit-dialog form
{
    padding: 24px;
}

.dialog-header
{
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 22px;
}

.icon-button
{
    width: 38px;
    min-height: 38px;
    color: var(--muted);
    background: #fff;
    border-color: var(--line);
    font-size: 1.05rem;
}

.icon-button:hover
{
    color: var(--ink);
    background: var(--surface-strong);
}

.dialog-actions
{
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 8px;
}

.dialog-actions .primary-button
{
    width: auto;
}

.sr-only
{
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

[hidden]
{
    display: none !important;
}

@media (max-width: 860px)
{
    .auth-panel,
    .workspace
    {
        grid-template-columns: 1fr;
    }

    .brand-block
    {
        max-width: none;
    }

    .add-panel
    {
        position: static;
    }
}

@media (max-width: 640px)
{
    .app-page
    {
        padding: 16px;
    }

    .app-header,
    .account-actions,
    .contact-card,
    .card-actions,
    .dialog-actions
    {
        align-items: stretch;
        flex-direction: column;
    }

    .app-header,
    .contact-card
    {
        display: flex;
    }

    .field-grid,
    .search-row
    {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .search-row .primary-button,
    .dialog-actions .primary-button,
    .secondary-button,
    .danger-button
    {
        width: 100%;
    }

    .auth-card,
    .tool-panel
    {
        padding: 22px;
    }
}