/* Elit Erkek Kuaförü - Panel CSS (Siyah & Beyaz) */

:root {
    --black: #000;
    --white: #fff;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-700: #404040;
    --gray-900: #171717;
    --red: #dc2626;
    --radius: 12px;
    --shadow: 0 2px 12px rgba(0,0,0,0.06);
    --shadow-lg: 0 16px 40px rgba(0,0,0,0.16);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--gray-100);
    color: var(--black);
    line-height: 1.55;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* --- Login --- */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
    background: var(--gray-100);
}
.login-card {
    background: var(--white);
    border-radius: 18px;
    padding: 40px 32px 28px;
    max-width: 400px;
    width: 100%;
    text-align: center;
    box-shadow: var(--shadow-lg);
}
.login-brand {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--gray-500);
    margin-bottom: 12px;
}
.login-title {
    font-size: 24px;
    font-weight: 900;
    margin-bottom: 4px;
    letter-spacing: -0.5px;
}
.login-sub {
    color: var(--gray-500);
    font-size: 14px;
    margin-bottom: 28px;
}
.field {
    margin-bottom: 16px;
    text-align: left;
}
.field label {
    display: block;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 6px;
}
.field input, .field select {
    width: 100%;
    padding: 13px 16px;
    border: 1.5px solid var(--gray-300);
    border-radius: 10px;
    font-family: inherit;
    font-size: 16px;
    background: var(--white);
    color: var(--black);
    outline: none;
    transition: border-color 0.18s;
}
.field input:focus, .field select:focus { border-color: var(--black); }
.login-error {
    background: #fef2f2;
    color: var(--red);
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 16px;
}
.login-back {
    display: inline-block;
    margin-top: 20px;
    color: var(--gray-500);
    text-decoration: none;
    font-size: 13px;
}
.login-back:hover { color: var(--black); }

/* --- Buttons --- */
.btn-primary, .btn-secondary, .btn-danger, .btn-ghost-sm, .btn-block {
    border: 1.5px solid var(--black);
    border-radius: 10px;
    font-family: inherit;
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.18s;
    text-align: center;
}
.btn-primary { background: var(--black); color: var(--white); padding: 14px 20px; }
.btn-primary:hover { background: var(--gray-700); }
.btn-primary:disabled { opacity: 0.4; cursor: default; }
.btn-block { display: block; width: 100%; padding: 14px 20px; background: var(--black); color: var(--white); }
.btn-secondary {
    background: var(--white);
    color: var(--black);
    padding: 13px 20px;
}
.btn-secondary:hover { background: var(--gray-100); }
.btn-danger {
    background: var(--white);
    color: var(--red);
    border-color: var(--red);
    padding: 13px 20px;
}
.btn-danger:hover { background: var(--red); color: var(--white); }
.btn-ghost-sm {
    background: var(--white);
    color: var(--black);
    padding: 9px 16px;
    font-size: 13px;
}
.btn-ghost-sm:hover { background: var(--gray-100); }

/* --- Panel Topbar --- */
.panel-topbar {
    background: var(--black);
    color: var(--white);
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 2px 10px rgba(0,0,0,0.15);
}
.panel-topbar-inner {
    max-width: 720px;
    margin: 0 auto;
    padding: 14px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.panel-brand {
    display: flex;
    align-items: baseline;
    gap: 8px;
}
.brand-name {
    font-weight: 800;
    font-size: 14px;
    letter-spacing: -0.2px;
}
.brand-sub {
    color: var(--gray-400);
    font-size: 12px;
    font-weight: 500;
}
.user-area {
    display: flex;
    align-items: center;
    gap: 12px;
}
.user-badge {
    display: flex;
    align-items: center;
    gap: 8px;
}
.user-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--white);
    color: var(--black);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 14px;
}
.user-name {
    font-size: 13px;
    font-weight: 700;
    line-height: 1.1;
}
.user-role {
    font-size: 10px;
    color: var(--gray-400);
}

/* --- Panel Main --- */
.panel-main {
    max-width: 720px;
    margin: 0 auto;
    padding: 24px 20px 48px;
}

/* Total Card */
.total-card {
    background: var(--black);
    color: var(--white);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 20px;
    text-align: center;
}
.total-num {
    font-size: 42px;
    font-weight: 900;
    line-height: 1;
    letter-spacing: -1px;
}
.total-lbl {
    font-size: 13px;
    color: var(--gray-400);
    margin-top: 6px;
    font-weight: 600;
}

/* Filter */
.panel-filter {
    background: var(--white);
    border-radius: 10px;
    padding: 12px;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.panel-filter label {
    font-size: 13px;
    font-weight: 700;
    color: var(--gray-500);
    flex-shrink: 0;
}
.panel-filter select {
    flex: 1;
    padding: 9px 12px;
    border: 1.5px solid var(--gray-300);
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    background: var(--white);
    color: var(--black);
    outline: none;
}
.panel-filter select:focus { border-color: var(--black); }

.panel-h2 {
    font-size: 16px;
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -0.3px;
}

/* --- Appointment List --- */
.appt-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.appt-item {
    background: var(--white);
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 16px;
    transition: all 0.18s;
    animation: fadeIn 0.25s ease;
}
.appt-item:hover { border-color: var(--gray-400); box-shadow: var(--shadow); }
.appt-item.removing { opacity: 0.3; transform: scale(0.98); }

.appt-top {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 12px;
}
.appt-datebox {
    background: var(--black);
    color: var(--white);
    border-radius: 10px;
    padding: 10px 12px;
    text-align: center;
    min-width: 64px;
    flex-shrink: 0;
}
.appt-day { font-size: 22px; font-weight: 900; line-height: 1; }
.appt-mon { font-size: 10px; color: var(--gray-300); text-transform: uppercase; font-weight: 700; margin-top: 2px; }
.appt-time { font-size: 12px; color: var(--white); margin-top: 6px; font-weight: 700; padding-top: 6px; border-top: 1px solid var(--gray-700); }

.appt-main { flex: 1; min-width: 0; }
.appt-name {
    font-size: 17px;
    font-weight: 800;
    margin-bottom: 4px;
}
.appt-service {
    display: inline-block;
    background: var(--gray-100);
    padding: 3px 9px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 6px;
}
.appt-phone {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--black);
    color: var(--white);
    padding: 7px 12px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.15s;
    font-family: 'Courier New', monospace;
    letter-spacing: 0.5px;
    border: 1.5px solid var(--black);
}
.appt-phone:hover { background: var(--white); color: var(--black); }
.appt-phone:active { transform: scale(0.96); }
.appt-phone .copy-icon { font-size: 12px; }

.appt-barber {
    font-size: 11px;
    color: var(--gray-500);
    font-weight: 600;
    margin-top: 6px;
    padding-top: 6px;
    border-top: 1px dashed var(--gray-200);
}
.appt-barber::before { content: '💈 '; }

.appt-cancel {
    background: transparent;
    border: 1.5px solid var(--red);
    color: var(--red);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.18s;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.appt-cancel:hover {
    background: var(--red);
    color: var(--white);
    transform: rotate(90deg);
}

/* --- Date Groups --- */
.date-groups {
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.date-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.date-group-label {
    font-size: 13px;
    font-weight: 800;
    color: var(--gray-700);
    padding: 8px 12px;
    background: var(--white);
    border-radius: 8px;
    border-left: 4px solid var(--black);
    letter-spacing: -0.2px;
}

/* --- Loading / Empty --- */
.loading, .empty {
    text-align: center;
    padding: 50px 20px;
    color: var(--gray-400);
    font-size: 14px;
}
.empty-icon { font-size: 56px; margin-bottom: 12px; opacity: 0.4; }
.empty-title { font-size: 18px; font-weight: 800; color: var(--gray-700); margin-bottom: 4px; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Modal --- */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 1000;
    animation: fadeIn 0.2s;
}
.modal-card {
    background: var(--white);
    border-radius: 18px;
    padding: 32px 28px 24px;
    max-width: 380px;
    width: 100%;
    text-align: center;
    box-shadow: var(--shadow-lg);
}
.modal-icon { font-size: 48px; margin-bottom: 10px; }
.modal-title {
    font-size: 20px;
    font-weight: 900;
    margin-bottom: 8px;
}
.modal-text {
    color: var(--gray-500);
    font-size: 14px;
    margin-bottom: 24px;
    line-height: 1.6;
}
.modal-text strong { color: var(--black); }
.modal-actions {
    display: flex;
    gap: 10px;
}
.modal-actions button { flex: 1; }

/* --- Toast --- */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(120px);
    background: var(--black);
    color: var(--white);
    padding: 13px 24px;
    border-radius: 100px;
    font-weight: 600;
    font-size: 14px;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    opacity: 0;
    transition: all 0.3s;
    max-width: 90vw;
    text-align: center;
}
.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}
.toast.error { background: var(--red); }
.toast.success { background: var(--black); }

/* --- Responsive --- */
@media (max-width: 600px) {
    .panel-topbar-inner { padding: 12px 16px; }
    .user-name, .user-role { display: none; }
    .panel-main { padding: 20px 14px 32px; }
    .total-num { font-size: 36px; }
    .appt-top { gap: 10px; }
    .appt-datebox { min-width: 56px; padding: 8px 10px; }
    .appt-day { font-size: 18px; }
    .appt-time { font-size: 11px; padding-top: 4px; margin-top: 4px; }
    .appt-name { font-size: 16px; }
    .appt-cancel { width: 32px; height: 32px; }
}