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

:root {
    --orange-50: #fff7ed;
    --orange-100: #ffedd5;
    --orange-200: #fed7aa;
    --orange-300: #fdba74;
    --orange-400: #fb923c;
    --orange-500: #f97316;
    --orange-600: #ea580c;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    --radius: 16px;
    --radius-sm: 12px;
    --radius-xs: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.06);
    --shadow-lg: 0 4px 24px rgba(0,0,0,0.08);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(180deg, var(--orange-50) 0%, #fef2e8 50%, var(--orange-100) 100%);
    min-height: 100vh;
    color: var(--gray-800);
    -webkit-font-smoothing: antialiased;
}

/* ========== LANDING ========== */

.landing-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 16px;
}

.landing-container {
    width: 100%;
    max-width: 420px;
}

.landing-header {
    text-align: center;
    margin-bottom: 32px;
}

.landing-logo {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--orange-400), var(--orange-500));
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    box-shadow: 0 4px 16px rgba(249, 115, 22, 0.3);
}

.landing-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.landing-subtitle {
    font-size: 15px;
    color: var(--gray-500);
    margin-bottom: 16px;
}

.landing-divider {
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--orange-400), var(--orange-500));
    border-radius: 2px;
    margin: 0 auto;
}

.landing-group {
    margin-bottom: 28px;
}

.landing-group-title {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--orange-500);
    margin-bottom: 10px;
    padding-left: 4px;
}

.landing-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
}

.link-button {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--gray-800);
    font-weight: 500;
    font-size: 15px;
    transition: all 0.2s ease;
    box-shadow: var(--shadow);
}

.link-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: rgba(255, 255, 255, 0.95);
    border-color: var(--orange-200);
}

.link-button:active {
    transform: translateY(0);
}

.link-title {
    flex: 1;
}

.link-arrow {
    color: var(--orange-400);
    flex-shrink: 0;
    margin-left: 12px;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.link-button:hover .link-arrow {
    opacity: 1;
}

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--gray-400);
    font-size: 14px;
}

.landing-footer {
    text-align: center;
    font-size: 13px;
    color: var(--gray-400);
}

.footer-user {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.footer-auth {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.footer-link {
    color: var(--orange-500);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.15s;
}

.footer-link:hover {
    color: var(--orange-600);
}

.footer-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
}

.footer-sep {
    color: var(--gray-300);
}

/* ========== AUTH PAGES ========== */

.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 16px;
}

.auth-container {
    width: 100%;
    max-width: 420px;
}

.auth-header {
    text-align: center;
    margin-bottom: 28px;
}

.auth-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.auth-subtitle {
    font-size: 15px;
    color: var(--gray-500);
    margin-bottom: 16px;
}

.auth-form {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: var(--radius);
    padding: 28px 24px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.form-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
    padding: 10px 14px;
    border-radius: var(--radius-xs);
    font-size: 13px;
    margin-bottom: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-600);
    margin-bottom: 6px;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 14px;
    color: var(--gray-400);
    pointer-events: none;
}

.form-input {
    width: 100%;
    padding: 12px 14px;
    font-family: inherit;
    font-size: 14px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    background: var(--gray-50);
    color: var(--gray-800);
    transition: border-color 0.15s, box-shadow 0.15s;
    outline: none;
}

.input-wrapper .form-input {
    padding-left: 44px;
}

.form-input:focus {
    border-color: var(--orange-300);
    box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.1);
    background: #fff;
}

.form-input::placeholder {
    color: var(--gray-400);
}

select.form-input {
    appearance: none;
    -webkit-appearance: none;
    padding-right: 36px;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23737373' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round' xmlns='http://www.w3.org/2000/svg'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    cursor: pointer;
}

.btn-primary {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--orange-400), var(--orange-500));
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
    margin-top: 4px;
}

.btn-primary:hover {
    box-shadow: 0 4px 16px rgba(249, 115, 22, 0.4);
    transform: translateY(-1px);
}

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

.auth-footer {
    text-align: center;
    font-size: 14px;
    color: var(--gray-500);
}

.auth-link {
    color: var(--orange-500);
    text-decoration: none;
    font-weight: 600;
    margin-left: 4px;
}

.auth-link:hover {
    color: var(--orange-600);
}

/* ========== ADMIN ========== */

.admin-wrapper {
    min-height: 100vh;
    padding: 24px 16px 60px;
}

.admin-container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

.admin-header {
    margin-bottom: 24px;
}

.admin-header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.admin-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-900);
}

.admin-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.admin-nav-link {
    padding: 8px 14px;
    border-radius: var(--radius-xs);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-600);
    transition: all 0.15s;
}

.admin-nav-link:hover {
    background: rgba(255, 255, 255, 0.6);
    color: var(--gray-800);
}

.admin-nav-link.active {
    background: rgba(255, 255, 255, 0.85);
    color: var(--orange-600);
    box-shadow: var(--shadow);
}

.admin-nav-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.admin-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    margin-bottom: 16px;
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 16px;
}

.form-row {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    flex-wrap: wrap;
}

.flex-1 { flex: 1; min-width: 140px; }
.flex-2 { flex: 2; min-width: 200px; }

.add-form .btn-primary {
    width: auto;
    padding: 10px 24px;
    font-size: 14px;
    margin-top: 12px;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    border-radius: var(--radius-xs);
    cursor: pointer;
    font-family: inherit;
    transition: all 0.15s;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--gray-200);
    color: var(--gray-600);
}

.btn-outline:hover {
    border-color: var(--orange-300);
    color: var(--orange-600);
    background: var(--orange-50);
}

.btn-danger {
    color: #dc2626;
    border-color: #fecaca;
}

.btn-danger:hover {
    background: #fef2f2;
    border-color: #fca5a5;
}

/* Links list in admin */
.links-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.link-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
    border-bottom: 1px solid var(--gray-100);
}

.link-item:last-child {
    border-bottom: none;
}

.link-edit-form {
    flex: 1;
}

.link-edit-form .form-row {
    flex-wrap: nowrap;
}

.link-edit-form .form-group {
    margin-bottom: 0;
}

.link-actions {
    display: flex;
    gap: 4px;
}

.btn-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: 1px solid transparent;
    border-radius: var(--radius-xs);
    cursor: pointer;
    transition: all 0.15s;
    color: var(--gray-400);
}

.btn-save:hover {
    background: #f0fdf4;
    border-color: #bbf7d0;
    color: #16a34a;
}

.btn-delete:hover {
    background: #fef2f2;
    border-color: #fecaca;
    color: #dc2626;
}

.delete-form {
    flex-shrink: 0;
}

/* Users list */
.users-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.user-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
    gap: 16px;
    flex-wrap: wrap;
}

.user-item:last-child {
    border-bottom: none;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: var(--orange-50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--orange-400);
    flex-shrink: 0;
}

.user-name {
    font-weight: 500;
    font-size: 14px;
}

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    margin-left: 6px;
}

.badge-admin {
    background: var(--orange-100);
    color: var(--orange-600);
}

.badge-user {
    background: var(--gray-100);
    color: var(--gray-500);
}

.user-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.password-form {
    display: flex;
    align-items: center;
    gap: 6px;
}

.form-input-sm {
    padding: 8px 12px;
    font-size: 13px;
    width: 160px;
}

/* Drag and drop */
.drag-handle {
    cursor: grab;
    color: var(--gray-300);
    padding: 4px;
    display: flex;
    align-items: center;
    flex-shrink: 0;
    transition: color 0.15s;
}

.drag-handle:hover {
    color: var(--gray-500);
}

.drag-handle:active {
    cursor: grabbing;
}

.sortable-ghost {
    opacity: 0.3;
}

.group-card {
    transition: box-shadow 0.15s;
}

.group-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--gray-100);
}

.group-name-form {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
}

.group-name-input {
    font-weight: 600;
    font-size: 15px;
    border-color: transparent;
    background: transparent;
    padding: 6px 10px;
}

.group-name-input:focus {
    border-color: var(--orange-300);
    background: #fff;
}

.empty-drop-zone {
    padding: 24px;
    text-align: center;
    color: var(--gray-400);
    font-size: 13px;
    border: 2px dashed var(--gray-200);
    border-radius: var(--radius-xs);
    transition: border-color 0.15s, background 0.15s;
}

.links-sortable {
    min-height: 20px;
}

.password-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-wrapper .form-input-sm {
    padding-right: 36px;
}

.btn-toggle-password {
    position: absolute;
    right: 6px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--gray-400);
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: color 0.15s;
}

.btn-toggle-password:hover {
    color: var(--orange-500);
}

/* ========== RESPONSIVE ========== */

@media (max-width: 640px) {
    .landing-wrapper {
        padding: 24px 16px;
    }

    .landing-title, .auth-title {
        font-size: 24px;
    }

    .link-button {
        padding: 14px 16px;
        font-size: 14px;
    }

    .admin-header-top {
        flex-direction: column;
        align-items: flex-start;
    }

    .admin-nav {
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .form-row {
        flex-direction: column;
    }

    .link-edit-form .form-row {
        flex-wrap: wrap;
    }

    .flex-1, .flex-2 {
        min-width: 100%;
    }

    .user-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .user-actions {
        width: 100%;
    }

    .password-form {
        flex-wrap: wrap;
    }

    .form-input-sm {
        width: 100%;
    }

    .link-item {
        flex-direction: column;
        align-items: stretch;
    }

    .delete-form {
        align-self: flex-end;
    }
}

@media (min-width: 1024px) {
    .landing-wrapper {
        padding: 60px 16px;
    }
}